U.S. patent application number 16/373659 was filed with the patent office on 2020-07-23 for fish eye camera.
This patent application is currently assigned to IDIS CO., LTD.. The applicant listed for this patent is IDIS CO., LTD.. Invention is credited to Hyun Geun AHN, Chi Hwan CHOI, Jin Kyu SONG.
Application Number | 20200236252 16/373659 |
Document ID | 20200236252 / US20200236252 |
Family ID | 71138090 |
Filed Date | 2020-07-23 |
Patent Application | download [pdf] |
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United States Patent
Application |
20200236252 |
Kind Code |
A1 |
SONG; Jin Kyu ; et
al. |
July 23, 2020 |
FISH EYE CAMERA
Abstract
A fish eye camera is provided. A main circuit board is fixed to
an inside of a base housing. A middle housing is formed to cover
both of the main circuit board and a camera module and fixed to the
base housing in a state in which a fish eye lens of the camera
module is drawn from the middle housing. A bracket includes a
bracket body, which is insertion-coupled to a plurality of light
emitting diode (LED) substrates and elastically supports the
plurality of LED substrates in a state in which the plurality of
LED substrates are arranged around an outer side of the middle
housing, and metal bodies which are inserted into the bracket body
to be in contact with the LED substrates. A cover housing is formed
to cover both of the bracket and the middle housing and fixed to
the base housing.
Inventors: |
SONG; Jin Kyu; (Guri-si,
KR) ; CHOI; Chi Hwan; (Hanam-si, KR) ; AHN;
Hyun Geun; (Yongin-si, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
IDIS CO., LTD. |
Daejeon-si |
|
KR |
|
|
Assignee: |
IDIS CO., LTD.
Daejeon-si
KR
|
Family ID: |
71138090 |
Appl. No.: |
16/373659 |
Filed: |
April 3, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04N 5/2256 20130101;
H04N 5/23238 20130101; H04N 5/2252 20130101; H05K 1/0274
20130101 |
International
Class: |
H04N 5/225 20060101
H04N005/225; H04N 5/232 20060101 H04N005/232; H05K 1/02 20060101
H05K001/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 22, 2019 |
KR |
10-2019-0008011 |
Claims
1. A fish eye camera comprising: a base housing; a main circuit
board fixed to an inside of the base housing; a camera module which
is connected to the main circuit board at the inside of the base
housing and performs omnidirectional photographing through a fish
eye lens; a middle housing formed to cover both of the main circuit
board and the camera module and fixed to the base housing in a
state in which the fish eye lens is drawn from the middle housing;
a plurality of light emitting diode (LED) substrates each having at
least one infrared LED mounted thereon and connected to the main
circuit board; a bracket including a bracket body, which is
insertion-coupled to the LED substrates and elastically supports
the LED substrates in a state in which the LED substrates are
arranged around an outer side of the middle housing, and metal
bodies which are inserted into the bracket body to be in contact
with the LED substrates; and a cover housing formed to cover both
of the bracket and the middle housing and fixed to the base
housing.
2. The fish eye camera of claim 1, wherein the bracket body is
formed to be slidably insertion-coupled to the LED substrates.
3. The fish eye camera of claim 2, wherein the bracket body
includes: a center bracket portion formed to surround the fish eye
lens from the outer side of the middle housing; and holding
portions which are arranged around an outer side of the center
bracket portion, are slidably insertion-coupled to the LED
substrates in a radial direction toward a center of the middle
housing, and elastically support the LED substrates.
4. The fish eye camera of claim 3, wherein each of the holding
portions includes: a pair of supporting pieces which protrude from
the outer side of the center bracket portion and are in contact
with both sides of one surface of the corresponding LED substrate
in a state in which the pair of supporting pieces are spaced apart
from each other in a circumferential direction of the center
bracket portion; and an elastic piece which protrudes between the
supporting pieces from the outer side of the center bracket portion
and elastically supports the other surface of the corresponding LED
substrate.
5. The fish eye camera of claim 4, wherein the elastic piece
includes a hooking step which protrudes to hook a rear end of the
corresponding LED substrate in an insertion direction of the
corresponding LED substrate.
6. The fish eye camera of claim 4, wherein the metal bodies are
formed to be exposed from the supporting pieces to be in contact
with the LED substrates.
7. The fish eye camera of claim 1, wherein the metal bodies are
formed to connect the LED substrates in series.
8. The fish eye camera of claim 7, wherein: each of the LED
substrates includes a first electrode and a second electrode
connected to the corresponding infrared LED; and the metal body
includes a first metal piece and a second metal piece, which are
respectively in contact with the first electrode of any one LED
substrate of two adjacent LED substrates and the second electrode
of the other LED substrate thereof in any one region corresponding
to a region between the LED substrates, and third metal pieces
which are in contact with both of the first electrode of any one
LED substrate of two adjacent LED substrates and the second
electrode of the other LED substrate thereof to electrically
connect the corresponding first and second electrodes in each
region corresponding to the remaining regions between the LED
substrates.
9. The fish eye camera of claim 1, wherein the metal bodies are
integrated with the bracket body formed of a resin material by
insert-injection molding.
10. The fish eye camera of claim 1, wherein the bracket body
includes heat dissipation holes which expose the metal bodies.
Description
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application claims priority from Korean Patent
Application No. 10-2019-0008011, filed on Jan. 22, 2019, in the
Korean Intellectual Property Office, the disclosure of which is
incorporated herein by reference in its entirety.
BACKGROUND
1. Field
[0002] The following description relates to a fish eye camera, and
more specifically, to a fish eye camera which includes a fish eye
lens and is capable of performing omnidirectional
photographing.
2. Description of Related Art
[0003] Generally, surveillance cameras are installed and operated
in places such as banks, government offices, hospitals, and offices
that visitors need to be monitored or where security is required.
For example, as described in Korean Patent Laid-Open Publication
No. 10-2012-0005664 (Jan. 17, 2012), a surveillance camera can be
formed as a fish eye camera including a fish eye lens in order to
have a wider viewing angle. The fish eye lens is a super-wide-angle
lens which is made using spherical aberration and forms an image
having a viewing angle of 180.degree. or more and having a minus
distortion within a certain range of a limited extent. Accordingly,
the fish eye camera can perform omnidirectional photographing
through the fish eye lens.
[0004] Meanwhile, the fish eye camera may include infrared light
emitting diodes (LEDs) to illuminate a subject with infrared rays
so as to capture a clear image at night or in a place in which
illuminance is low. In this case, the fish eye camera needs to be
formed such that a process in which the infrared LEDs are assembled
in a housing is simplified. In addition, the fish eye camera needs
a proper heat dissipation structure so as to prevent damage of an
inside thereof due to heat generated by the infrared LEDs, and
particularly, by high power infrared LEDs.
SUMMARY
[0005] This summary is provided to introduce a selection of
concepts in a simplified form that are further described below in
the Detailed Description. This summary is not intended to identify
key features or essential features of the claimed subject matter,
nor is it intended to be used as an aid in determining the scope of
the claimed subject matter.
[0006] The following description relates to a fish eye camera of
which an assembly process is simplified and thermal damage is
prevented by a proper heat dissipation structure.
[0007] In one general aspect, a fish eye camera includes a base
housing, a main circuit board, a camera module, a middle housing, a
plurality of light emitting diode (LED) substrates, a bracket, and
a cover housing. The main circuit board is fixed to an inside of
the base housing. The camera module is connected to the main
circuit board at the inside of the base housing and performs
omnidirectional photographing through a fish eye lens. The middle
housing is formed to cover both of the main circuit board and the
camera module and is fixed to the base housing in a state in which
the fish eye lens is drawn from the middle housing. Each of the
plurality of LED substrates includes at least one infrared LED
mounted thereon and is connected to the main circuit board. The
bracket includes a bracket body, which is insertion-coupled to the
LED substrates and elastically supports the LED substrates in a
state in which the LED substrates are arranged around an outer side
of the middle housing, and metal bodies which are inserted into the
bracket body to be in contact with the LED substrates. The cover
housing is formed to cover both of the bracket and the middle
housing and fixed to the base housing.
[0008] Other features and aspects will be apparent from the
following detailed description, the drawings, and the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view illustrating a fish eye camera
according to one embodiment of the present invention.
[0010] FIG. 2 is an exploded perspective view of FIG. 1.
[0011] FIG. 3 is an exploded perspective view illustrating a
bracket separated from a middle housing in FIG. 2.
[0012] FIG. 4 is an exploded perspective view illustrating a state
in which light emitting diode (LED) substrates are separated from
the bracket.
[0013] FIG. 5 is a side view of FIG. 4.
[0014] FIG. 6 is a side view for describing a process in which the
LED substrate is insertion-coupled to the bracket in FIG. 5.
[0015] FIG. 7 is a view illustrating an inside of the bracket.
[0016] FIG. 8 is a view illustrating an example of a metal plate to
be inserted into a bracket body.
[0017] FIG. 9 is a perspective view illustrating a first metal
piece of FIG. 8.
[0018] FIG. 10 is a perspective view illustrating a second metal
piece of FIG. 8.
[0019] FIG. 11 is a perspective view illustrating a third metal
piece of FIG. 8.
[0020] FIG. 12 is a configuration diagram illustrating an example
in which the LED substrates are connected in series by metal
plates.
[0021] Throughout the drawings and the detailed description, unless
otherwise described, the same drawing reference numerals will be
understood to refer to the same elements, features, and structures.
The relative size and depiction of these elements may be
exaggerated for clarity, illustration, and convenience.
DETAILED DESCRIPTION
[0022] Hereinafter, the invention will be described in detail with
reference to the accompanying drawings. Here, like reference
numerals denote like elements, and a repeated description and
detailed descriptions of known functions and configurations that
may unnecessarily obscure the gist of the invention will not be
repeated. Embodiments of the invention are provided in order to
fully explain the invention for those skilled in the art.
Therefore, shapes and sizes of the elements in the drawings may be
exaggerated for a more precise description.
[0023] FIG. 1 is a perspective view illustrating a fish eye camera
according to one embodiment of the present invention. FIG. 2 is an
exploded perspective view of FIG. 1. FIG. 3 shows perspective views
illustrating a middle housing and a bracket in FIG. 2.
[0024] Referring to FIGS. 1 to 3, a fish eye camera 100 according
to one embodiment of the present invention includes a base housing
110, a main circuit board 120, a camera module 130, a middle
housing 140, a plurality of LED substrates 150, a bracket 160, and
a cover housing 170.
[0025] An outer portion of the base housing 110 is fixed to a
ceiling or wall of a building or the like so that the fish eye
camera 100 may be mounted on the ceiling or wall. An inside of the
base housing 110 may have a flat surface. The base housing 110 may
include coupling structures therein to be bolt-coupled to the main
circuit board 120, the camera module 130, the middle housing 140,
and the cover housing 170
[0026] An outer circumference of the base housing 110 may be formed
in a circular shape. A flange 110a may be formed along an inner
edge of the base housing 110. An outer wall of the flange 110a of
the base housing 110 may be covered and supported by an outer
portion of the cover housing 170.
[0027] The main circuit board 120 is fixed to the inner side of the
base housing 110. The main circuit board 120 may be bolt-coupled to
the inside of the base housing 110. The main circuit board 120 is
connected to the camera module 130 and the LED substrates 150. The
main circuit board 120 may be connected to a power cable and a
communication cable.
[0028] The main circuit board 120 may receive an external power
signal and a control signal, transmit the external power signal and
the control signal to the camera module 130 to operate the camera
module 130, and receive a signal of an image captured by the camera
module 130 to output the signal to the outside. In addition, the
main circuit board 120 may output the external power signal and the
control signal to the LED substrates 150 to operate the infrared
LEDs 151.
[0029] The camera module 130 is connected to the main circuit board
120 at the inside of the base housing 110. The camera module 130
may be bolt-coupled to the inside of the base housing 110. The
camera module 130 performs omnidirectional photographing through a
fish eye lens 131. The fish eye lens 131 is a super-wide-angle lens
formed with spherical aberration.
[0030] In the camera module 130, the fish eye lens 131 may be
installed in and supported by a lens barrel 132. In the camera
module 130, an image sensor (not shown) may be embedded in a casing
133 connected to the lens barrel 132. The image sensor converts an
optical image formed by the fish eye lens 131 into an electrical
signal. Accordingly, the camera module 130 may transmit an image
formed by omnidirectional photographing performed through the fish
eye lens 131 to the main circuit board 120.
[0031] The middle housing 140 is formed to cover both of the main
circuit board 120 and the camera module 130 and is fixed to the
base housing 110 in a state in which the fish eye lens 131 is drawn
from the middle housing 140. The middle housing 140 may be
bolt-coupled to the inside of the base housing 110. As the middle
housing 140 is formed to have a shape having a cavity at a side
thereof facing the base housing 110, a space for accommodating the
main circuit board 120 and the camera module 130 is formed between
the middle housing 140 and the base housing 110.
[0032] The fish eye lens 131 may be drawn from the middle housing
140 through a center hole 140a. The center hole 140a may be formed
to have a circular shape. The middle housing 140 may include a
center horizontal portion 141 and an inclined portion 142. The
center horizontal portion 141 is formed to have a horizontal
surface around the center hole 140a when an inner surface of the
base housing 110 is horizontally disposed. The inclined portion 142
is formed to obliquely extend from an outer side of the center
horizontal portion 141 in a radial direction thereof. In the middle
housing 140, coupling portions 143 may be formed at an outer side
of the inclined portion 142 so as to be coupled to the base housing
110.
[0033] In the middle housing 140, an illuminance sensor 180 may be
installed around the center hole 140a. The illuminance sensor 180
may detect brightness therearound such that operation of the
infrared LED 151 is controlled. In a state in which the fish eye
lens 131 is drawn through the center hole 140a of the middle
housing 140, a ring support 190 may be fitted to an outer side of
the fish eye lens 131.
[0034] In a state in which the ring support 190 surrounds the fish
eye lens 131, the ring support 190 may be inserted into the center
hole 140a of the middle housing 140 to support the fish eye lens
131. The ring support 190 may include a hole for exposing a sensing
portion of the illuminance sensor 180. The ring support 190 may be
formed of an elastic material such as rubber or silicone.
[0035] At least one infrared LED 151 is mounted on each of the
plurality of LED substrates 150, and the plurality of LED
substrates 150 are connected to the main circuit board 120. The
infrared LEDs 151 illuminate a subject with infrared rays such that
the camera module 130 may clearly capture an image. The infrared
LEDs 151 are mounted on the corresponding surfaces of the LED
substrates 150 facing the cover housing 170. As an example, the
number of the LED substrates 150 is six, but the number is not
limited thereto.
[0036] The bracket 160 includes a bracket body 161 and metal bodies
166. In a state in which the LED substrates 150 are arranged around
an outer side of the middle housing 140, the bracket body 161 is
insertion-coupled to the LED substrates 150 to elastically support
the LED substrates 150. The bracket body 161 may be
insertion-coupled to the LED substrates 150 in a state in which the
LED substrates 150 are arranged at predetermined intervals.
Accordingly, since the plurality of LED substrates 150 are disposed
to be spaced apart from each other around the outer side of the
middle housing 140, the plurality of LED substrates 150 may
illuminate at a wide angle for omnidirectional photographing of the
camera module 130. The bracket body 161 may be formed of a resin
material by injection molding. Accordingly, the bracket body 161
may be formed of an electrical nonconductor, that is, an
insulator.
[0037] The fish eye lens 131 may be drawn from the bracket body 161
through a center hole 161a. The bracket body 161 may include hooks
161b protruding toward the middle housing 140 around the center
hole 161a. In a state in which the bracket body 161 is disposed to
cover the middle housing 140, the hooks 161b may pass through the
center hole 140a of the middle housing 140 and may be hooked around
the center hole 140a of the middle housing 140 to fix the bracket
body 161 to the middle housing 140.
[0038] As described above, even when the plurality of LED
substrates 150 are disposed to be spaced apart from each other
around the outer side of the middle housing 140, a process of
assembling the plurality of LED substrates 150 and the bracket body
161 is simplified, and thus convenience in assembly can be
improved.
[0039] In addition, since the LED substrates 150 are fixed to the
bracket body 161 in the present embodiment, the bracket body 161
may be coupled to the middle housing 140 by the hooks 161b even
without being bolt-coupled to the middle housing 140 when compared
to a comparative embodiment in which a bracket is bolt-coupled to a
middle housing in a state in which LED substrates are covered with
the bracket and pressed against an outer side of the middle
housing. As a result, convenience in assembly can be further
improved.
[0040] The metal bodies 166 are inserted into the bracket body 161
to be in contact with the LED substrates 150. When the LED
substrates 150 generate heat due to the operation of the infrared
LEDs 151, the metal bodies 166 receive heat from the LED substrates
150 and exchange the heat with surrounding air to smoothly
dissipate the heat of the LED substrates 150. Accordingly, an inner
portion of the fish eye camera 100 due to heat generated by the
infrared LEDs 151, particularly, by high power infrared LEDs, can
be prevented from being damaged.
[0041] The metal bodies 166 may be integrated with the bracket body
161 formed of a resin material by insert-injection molding. Since
the bracket body 161 is injection-molded using an injection mold in
a state in which the metal bodies 166 are inserted into the
injection mold, the metal bodies 166 may be integrated with the
bracket body 161.
[0042] The bracket body 161 may include heat dissipation holes 161c
for exposing the metal bodies 166. The bracket body 161 may include
the heat dissipation holes 161c in a surface opposite to a surface
facing the middle housing 140. Since the metal bodies 166 are in
contact with surrounding air through the heat dissipation holes
161c, heat exchange between the metal bodies 166 and the
surrounding air occurs more smoothly, and thus a heat dissipation
effect can be improved.
[0043] The cover housing 170 is formed to cover both of the bracket
160 and the middle housing 140 and fixed to the base housing 110. A
circumference of an outer side of the cover housing 170 may be
formed to have a circular shape. The cover housing 170 may be
bolt-coupled to the base housing 110 in a state in which the outer
portion of the cover housing 170 surrounds an outer wall of the
flange 110a of the base housing 110.
[0044] The cover housing 170 may include a center hole
corresponding to the fish eye lens 131. A window 171 may cover the
center hole of the cover housing 170 to protect the fish eye lens
131. The window 171 has optical transmissivity such that a subject
may be photographed through the fish eye lens 131. The window 171
may be formed to have a dome shape. An infrared ray pass filter 172
may be formed around the center hole of the cover housing 170. The
infrared ray pass filter 172 is a filter through which frequencies
only in a wavelength band of infrared rays pass, and black masking
may be performed on the infrared ray pass filter 172 such that an
operation state of the infrared LEDs 151 is not visible from the
outside.
[0045] According to the above-described fish eye camera 100, a
process of assembling the bracket 160, the middle housing 140, and
the LED substrates 150 can be simplified, and thermal damage can be
prevented due to a proper heat dissipation structure.
[0046] FIG. 4 is an exploded perspective view illustrating a state
in which light emitting diode (LED) substrates are separated from
the bracket. FIG. 5 is a side view of FIG. 4. FIG. 6 is a side view
for describing a process in which the LED substrate is
insertion-coupled to the bracket in FIG. 5. FIG. 7 is a view
illustrating the inside of the bracket.
[0047] Referring to FIGS. 4 to 7, the bracket body 161 may be
formed to be slidably insertion-coupled to the LED substrates 150.
Accordingly, a process of assembling the bracket body 161 and the
LED substrates 150 can be simplified. The bracket body 161 may
include a center bracket portion 162 and holding portions 163.
[0048] The center bracket portion 162 is formed to surround the
fish eye lens 131 from the outer side of the middle housing 140.
That is, the center bracket portion 162 may be formed to surround
the fish eye lens 131 in a state in which the fish eye lens 131 is
drawn from the center bracket portion 162 through the center hole
161a. Since a surface of the center bracket portion 162 facing the
middle housing 140 is flat, the center bracket portion 162 is in
surface contact with the center horizontal portion 141 of the
middle housing 140, and thus the center bracket portion 162 can be
stably supported. The heat dissipation holes 161c may be formed in
the center bracket portion 162.
[0049] The center bracket portion 162 may include alignment
protrusions 162a protruding toward the middle housing 140. The
alignment protrusions 162a may be arranged at predetermined
intervals in a circumferential direction of the center bracket
portion 162. In this case, as illustrated in FIG. 3, the center
horizontal portion 141 of the middle housing 140 may include
alignment holes 141a into which the alignment protrusions 162a of
the center bracket portion 162 are inserted when the center bracket
portion 162 is disposed. Accordingly, the bracket 160 may be
aligned to be disposed on the middle housing 140.
[0050] The holding portions 163 are arranged along an outer side of
the center bracket portion 162 and slidably insertion-coupled to
the LED substrates 150 in a radial direction toward a center of the
middle housing 140 to elastically support the LED substrates 150.
The holding portions 163 are arranged at predetermined intervals.
Here, each of the holding portions 163 may include a pair of
supporting pieces 163a and an elastic piece 163b.
[0051] The pair of supporting pieces 163a protrude from the outer
side of the center bracket portion 162 in a state in which the pair
of supporting pieces 163a are spaced apart from each other in the
circumferential direction of the center bracket portion 162 and are
in contact with both sides of one surface of the corresponding LED
substrate 150. The metal bodies 166 may be formed to be exposed
from the supporting pieces 163a so as to be in contact with the LED
substrates 150. In this case, the supporting pieces 163a may
support the LED substrates 150 in a state in which the metal bodies
166 are in contact with the LED substrates 150. The supporting
pieces 163a may be bent to protrude from the center bracket portion
162 at angles which are the same as that of the inclined portion
142 of the middle housing 140. The supporting piece 163a may be
formed to have a predetermined width and a predetermined thickness.
The supporting piece 163a may be formed to have a square bar
shape.
[0052] The elastic piece 163b protrudes between the supporting
pieces 163a from the outer side of the center bracket portion 162
and elastically supports the other surface of the corresponding LED
substrate 150. Since the elastic piece 163b is elastically deformed
when the LED substrate 150 is inserted between the corresponding
supporting pieces 163a in a radial direction of the center bracket
portion 162, the LED substrate 150 can be elastically pressed and
fixed to the corresponding supporting pieces 163a.
[0053] Accordingly, the holding portion 163 may be slidably
insertion-coupled to the corresponding LED substrate 150 in the
radial direction of the center bracket portion 162 to elastically
support the LED substrate 150. In a case in which the metal bodies
166 electrically connect the LED substrates 150, the elastic piece
163b may stably maintain electrical contacts between the LED
substrate 150 and the metal bodies 166 in addition to contacts for
heat dissipation there between.
[0054] A portion of the elastic piece 163b connected to the center
bracket portion 162 may be formed to have a shape convexly curved
in a direction farther away from the corresponding LED substrate
150. Accordingly, the elastic piece 163b may increase an elastic
force for pressing the corresponding LED substrate 150 and also
prevent damage of a portion connected to the center bracket portion
162.
[0055] In the case in which the holding portions 163 are formed to
have the above-described structure, as illustrated in FIG. 3, the
inclined portion 142 of the middle housing 140 may include edge
holes 142a corresponding to the holding portions 163 in a
circumferential direction thereof. The edge hole 142a may be formed
to have a quadrangular shape. In a state in which the bracket 160
is disposed on the middle housing 140, an edge of the edge hole
142a may support the corresponding LED substrate 150 adjacent
thereto such that the elastic piece 163b may pass through the edge
hole 142a. In addition, the edge hole 142a may hook and support
protrusions 150a formed at both sides of a rear end of the
corresponding LED substrate 150 inward. The inclined portion 142 of
the middle housing 140 may include additional holes 142b between
the edge holes 142a. The additional holes 142b may contribute to
heat dissipation or reducing weight of the middle housing 140.
[0056] The elastic piece 163b may include a hooking step 163c
protruding to hook the rear end of the corresponding LED substrate
150 in an insertion direction of the corresponding LED substrate
150. Accordingly, the LED substrate 150 may be further stably fixed
in a state in which the LED substrate 150 is insertion-coupled to
the holding portion 163. The hooking step 163c may be formed to be
in surface contact with the rear end of the corresponding LED
substrate 150. Since a protruding end of the elastic piece 163b is
bent in a direction farther away from the supporting pieces 163a,
the LED substrate 150 can be smoothly inserted between the elastic
piece 163b and the corresponding supporting pieces 163a.
[0057] The metal bodies 166 may be formed to connect the LED
substrates 150 in series. That is, the metal bodies 166 may serve a
function of dissipating heat of the LED substrates 150 and may also
serve a function of electrically connecting the LED substrates 150.
Specifically, the LED substrates 150 may include first and second
electrodes 152a and 152b connected to the corresponding infrared
LEDs 151. The LED substrate 150 may include the first and second
electrodes 152a and 152b on the surface thereof facing the cover
housing 170. In addition, as illustrated in FIG. 8, the metal
bodies 166 may include a first metal piece 167, a second metal
piece 168, and third metal pieces 169.
[0058] The first and second metal pieces 167 and 168 are
respectively in contact with the first electrode 152a of one LED
substrate 150 of two adjacent LED substrates 150 and the second
electrode 152b of the other LED substrate 150 thereof in any one
region corresponding to a region between the LED substrates
150.
[0059] As illustrated in FIG. 9, a body portion 167a of the first
metal piece 167 is embedded under the center bracket portion 162,
and an extension portion 167b is bent to extend from the body
portion 167a to be parallel to the corresponding supporting piece
163a. The body portion 167a may include a through hole. Since a
part of the bracket body 161 is formed in the through hole of the
body portion 167a when the bracket body 161 is injection-molded,
the body portion 167a may be more firmly fixed to the bracket body
161.
[0060] The extension portion 167b may be exposed from the
corresponding supporting piece 163a toward the corresponding LED
substrate 150 and may be in contact with the first electrode 152a
of the corresponding LED substrate 150. The extension portion 167b
may be formed to be in surface contact with the first electrode
152a of the corresponding LED substrate 150 for stable contact. The
extension portion 167b may be formed to have a predetermined width
and a predetermined thickness. The first metal piece 167 may be
exposed from the corresponding supporting piece 163a with a
predetermined thickness.
[0061] As illustrated in FIG. 10, a body portion 168a of the second
metal piece 168 is embedded under the center bracket portion 162,
and an extension portion 168b is bent to extend from the body
portion 168a to be parallel to the corresponding supporting piece
163a. The body portion 168a may include a through hole. Since a
part of the bracket body 161 is formed in the through hole of the
body portion 168a when the bracket body 161 is injection-molded,
the body portion 168a may be more firmly fixed to the bracket body
161.
[0062] The extension portion 168b may be exposed from the
corresponding supporting piece 163a toward the corresponding LED
substrate 150 and may be in contact with the second electrode 152b
of the corresponding LED substrate 150. The extension portion 168b
may be formed to be in surface contact with the second electrode
152b of the corresponding LED substrate 150 for stable contact. The
extension portion 168b may be formed to have a predetermined width
and a predetermined thickness. The second metal piece 168 may be
exposed from the corresponding supporting piece 163a with a
predetermined thickness. The second metal piece 168 may be formed
to be symmetrical to the first metal piece 167.
[0063] Each of the third metal pieces 169 is commonly in contact
with both of the first electrode 152a of any one LED substrate 150
of two adjacent LED substrates 150 and the second electrode 152b of
the other LED substrate 150 thereof to electrically connect the
corresponding first and second electrodes 152a and 152b in each of
regions corresponding to the remaining regions between the LED
substrates 150. The third metal piece 169 is formed of an
electrically conductive metal material.
[0064] As illustrated in FIG. 11, a body portion 169a of the third
metal piece 169 is embedded under the center bracket portion 162,
and a pair of extension portions 169b may be bent to extend from
the body portion 169a to be parallel to the corresponding
supporting pieces 163a. The body portion 169a may include a through
hole. As a part of the bracket body 161 is formed in the through
hole of the body portion 169a when the bracket body 161 is
injection-molded, the body portion 169a may be more firmly fixed to
the bracket body 161.
[0065] The extension portions 169b may be exposed from the
corresponding supporting pieces 163a toward the corresponding LED
substrate 150 and may be in contact with the first and second
electrodes 152a and 152b of the corresponding LED substrates 150.
The extension portions 169b may be formed to be in surface contact
with the first and second electrodes 152a and 152b of the
corresponding LED substrate 150 for stable contact. The extension
portion 169b may be formed to have a predetermined width and a
predetermined thickness. The third metal piece 169 may be exposed
from the corresponding supporting piece 163a with a predetermined
thickness.
[0066] Accordingly, as illustrated in FIG. 12, all of the LED
substrates 150 may be connected in series by the third metal pieces
169 when the first and second electrodes 152a and 152b in contact
with the first and second metal pieces 167 and 168 are connected to
the main circuit board 120 by a connector 121. As described above,
in the present embodiment, since all of the LED substrates 150 may
be connected in series when only the first and second electrodes
152a and 152b in contact with the first and second metal pieces 167
and 168 are connected to the main circuit board 120 by the
connector 121, a process in which the LED substrates 150 are
connected to the main circuit board 120 may be simplified when
compared to a comparative embodiment in which LED substrates are
connected to a main circuit board by connectors one by one. As a
result, process efficiency can be improved.
[0067] According to the present invention, a process of assembling
a bracket, a middle housing, and light LED substrates can be
simplified, and thermal damage can be prevented by a proper heat
dissipation structure.
[0068] The present invention has been described with reference to
the example embodiments illustrated in the drawings, but these are
only examples. It will be understood by those skilled in the art
that various modifications and equivalent other example embodiments
may be made. Therefore, the scope of the present invention is
defined by the appended claims.
REFERENCE NUMERALS
[0069] 110: BASE HOUSING [0070] 120: MAIN CIRCUIT BOARD [0071] 130:
CAMERA MODULE [0072] 131: FISH EYE LENS [0073] 140: MIDDLE HOUSING
[0074] 150: LED SUBSTRATE [0075] 151: INFRARED LED [0076] 160:
BRACKET [0077] 161: BRACKET BODY [0078] 166: METAL BODY [0079] 170:
COVER HOUSING
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