U.S. patent application number 13/243301 was filed with the patent office on 2012-10-25 for insulation box having two boards and a spring disposed between the boards.
This patent application is currently assigned to Askey Computer Corporation. Invention is credited to Chian-Jung CHEN, Ching-Feng HSIEH.
Application Number | 20120267363 13/243301 |
Document ID | / |
Family ID | 47020489 |
Filed Date | 2012-10-25 |
United States Patent
Application |
20120267363 |
Kind Code |
A1 |
CHEN; Chian-Jung ; et
al. |
October 25, 2012 |
Insulation Box Having Two Boards and a Spring Disposed Between the
Boards
Abstract
An insulation box includes: a case body with a receiving space
and an opening, and a door board for covering the opening; wherein
the door board includes stacked inner and outer boards, and springs
are disposed therebetween to provide buffering and tightening
effects. When the opening is covered by the door board for a signal
test, the inner board can be properly adjusted to completely seal
up the opening of the insulation box, thereby preventing signals
from being lost.
Inventors: |
CHEN; Chian-Jung; (Kaohsiung
City, TW) ; HSIEH; Ching-Feng; (Taipei, TW) |
Assignee: |
Askey Computer Corporation
New Taipei City
TW
|
Family ID: |
47020489 |
Appl. No.: |
13/243301 |
Filed: |
September 23, 2011 |
Current U.S.
Class: |
220/4.01 |
Current CPC
Class: |
H05K 9/0069 20130101;
G01R 29/0821 20130101; G01R 1/04 20130101; G01R 31/001
20130101 |
Class at
Publication: |
220/4.01 |
International
Class: |
B65D 6/00 20060101
B65D006/00 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 22, 2011 |
TW |
100113995 |
Claims
1. An insulation box, comprising: a case body including a receiving
space and an opening toward external environment; and a door board
closable and hinged to one side of the case body for closing up the
opening, the door board including an outer board disposed
outwardly, an inner board disposed inwardly, and one spring
disposed between the inner board and the outer board for
maintaining an elastic yaw allowance for the inner board.
2. The insulation box of claim 1, wherein inner walls of the
insulation box comprises an insulation material.
3. The insulation box of claim 1, further comprising connecting
elements for connecting the inner board and the outer board.
4. The insulation box of claim 3, wherein each of the connecting
elements includes a fixing sheet and a cylinder axially disposed on
the fixing sheet, the fixing sheet fixed onto the outer board for
enabling one end of the cylinder to be embedded in the outer board,
and the other end of the cylinder to be connected to the inner
board, and having the cylinder to be exposed between the inner
board and the outer board, thereby keeping a preset distance
between the inner board and the outer board.
5. The insulation box of claim 4, wherein the outer board further
comprises notches, one end of the cylinder is disposed inside the
notch, and the fixing sheet covers the notch, thereby having the
end of the cylinder to be embedded in the outer board.
6. The insulation box of claim 5, wherein the notch has a depth
greater than a height of the end of the cylinder embedded in the
notch.
7. The insulation box of claim 1, further comprising an insulation
board disposed on the inner board, wherein the inner board is
located between the insulation board and the outer board, and has
an area greater than an area of the insulation board.
8. The insulation box of claim 1, further comprising a latch and a
mortise disposed on the outer board and the case body,
respectively, for locking up and fixing the door board as in a
closing state.
9. The insulation box of claim 8, wherein the latch is a pneumatic
latch.
10. The insulation box of claim 1, further comprising hinges
connecting the door board and the main box.
11. The insulation box of claim 1, wherein the door board further
comprises three springs, and the four springs are disposed at four
corners of the door board, respectively.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention relates to insulation environments, and, more
particularly, to an insulation box.
[0003] 2. Description of Related Art
[0004] In the flourishing modem electronic industry, electronic
products are developed in the trend of miniaturization with
powerful features such as high performance, more functions, and
high speed. All general electronic products need a specification
test, i.e., electromagnetic interference test, to enable the
electronic products meet the criteria of related specifications.
The electronic products will be put inside an insulation
environment for the testing process, and the insulation environment
can be an insulation room or an insulation box.
[0005] Please refer to FIG. 1, which illustrates an insulation box
1 for a testing process according to the prior art. The insulation
box 1 comprises a case body 12 with an opening 120, a door board 13
for opening/closing the opening 120, an insulation board 14
disposed on the door board 13, a latch 15 for connecting the door
board 13 and the case body 12, and hinges 16. Inner walls of the
case body 12 consist of insulation material, the door board 13 has
a looped raised bar 130, while the case body 12 has a corresponding
looped groove 121 for he raised bar 130 to wedge therein. In
addition, the insulation board 14 is loosely matched with inner
wall around the opening 120, and the latch 15 is a manual latch
mostly made out of steel.
[0006] However, when opening the door board 13, the latch 15 must
be manually operated. Consequently, the latch 15 is easily getting
weary and loose after frequent usage, thereby the raised bar 130 of
the door board 13 cannot wedge tightly in the groove 121 of the
case body 12, and further leading to weaken the insulation effect
and causing the testing signals to be let out easily through the
area around the opening 120 and the latch 15.
[0007] Furthermore, each hinge 16 used in the prior insulation box
1 consists of two asymmetric side-by-side steel leaves 160 fixed to
the case body 12 and the door board 13 separately, the door board
13 can be opened and closed through the work of a pivot axle 161.
Since the two asymmetric steel leaves are disposed side-by-side,
after frequent use for opening/closing the door board 13, the two
steel leaves 160 are getting deformed and loose easily;
consequently, the door board 13 cannot seal up the case body 12
well, accordingly the insulation box 1 will be poorly sealed,
thereby causing signals to lose through the area around the opening
120.
[0008] Hence, it is a highly urgent technique issue in the industry
how to solve the problem of "being unable to keep the door board
sealing up the case body" as happened in the prior art.
SUMMARY OF THE INVENTION
[0009] In view of the drawbacks of the prior art mentioned above,
it is therefore an objective of this invention to provide an
insulation box, mainly improving the door board in the prior art;
and no matter in what state the latch or hinges are, being capable
of avoiding problem of losing signals due to poor airtightness of
the insulation box.
[0010] The door board of the present invention can be closely
hinged to one side of the case body for closing up the opening,
also the door board consists of an inner board disposed inwardly,
an outer board disposed outwardly, and springs disposed between the
inner and outer boards for maintaining the elastic yaw allowance
for the inner board.
[0011] The insulation box of the present invention comprises a door
board that is a double-stacked board body (the inner and outer
board), thus providing a double insulation effect to prevent
signals from being let out.
[0012] Furthermore, the springs provide the inner board with
elastic yaw allowance. Therefore, the space between the inner and
outer boards has buffering and tightening effect; after the door
board covers the opening, the position of the inner board can be
properly adjusted to enable the inner board to seal up the opening,
and thus the door board of double-stacked board body (the inner and
outer boards) can seal up the insulation box efficiently; thereby
avoiding problem of losing signals due to poor airtightness
happened between the inner and the outer boards.
BRIEF DESCRIPTION OF DRAWINGS
[0013] The invention can be more fully understood by reading the
following detailed description of the preferred embodiments, with
reference made to the accompanying drawings, wherein:
[0014] FIG. 1 is a 3-D diagram showing an insulation box according
to the prior art;
[0015] FIG. 2A is a 3-D diagram showing an opened insulation box
according to the present invention;
[0016] FIG. 2B is an analytical 3-D diagram showing a door board of
an insulation box according to the present invention;
[0017] FIG. 2C is a partial sectional diagram depicting the door
board of an insulation box according to the present invention;
[0018] FIG. 3A is a 3-D diagram depicting a closed insulation box
according to the present invention;
[0019] FIG. 3B is a partial close-up 3-D diagram depicting a latch
of a insulation box according to the present invention; and
[0020] FIG. 3C is a 3-D diagram depicting a hinge of an insulation
box according to the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0021] The following illustrative embodiments are provided to
illustrate the disclosure of the present invention; those in the
art can apparently understand these and other advantages and
effects after reading the disclosure of this specification. The
present invention can also be performed or applied by other
different embodiments. The details of the specification may be on
the basis of different points and applications, and numerous
modifications and variations can be devised without departing from
the spirit of the present invention.
[0022] Please refer to FIGS. 2A through 2C, which are diagrams
depicting an insulation box according the present invention,
providing an insulation environment for accurately testing objects.
In the present embodiment, the insulation environment is for
insulation signals in the process of testing electronic
products.
[0023] As shown in FIG. 2A, the insulation box comprises a case
body 2 with an opening 20, a door board 3 for sealing up the
opening 20, and an insulation board 4 disposed on the door board 3
facing the opening 20.
[0024] The case body 2 comprises a rectangular bottom board 21 and
four rectangular side boards 22 vertically disposed on four sides
of the bottom board 21, and thus a receiving space S is formed
therewithin. The opening 20 connects the receiving space S and
external environment. An insulation material is disposed on inner
surface 22a of each of the side boards 22.
[0025] The door board 3 can be closely hinged to one side of the
case body 2 for closing up the opening 20. As shown in FIGS. 2B and
2C, the door board 3 comprises a rectangular outer board 31, a
rectangular inner board 32 stacked on the outer board 31, four sets
of connecting elements 30 for connecting the inner board 32 and the
outer board 31 at the four corners, and four springs 33 disposed
between the outer board 31 and the inner board 32. The springs 33
are allocated at the four corners of the door board 3, enabling the
outer board 31 and the inner board 32 to keep a homogeneous
distance D to each other. The design of the inner board 32 and the
outer board 31 in the insulation box provides the door board 3 with
a double insulation effect to prevent signals from being let
out.
[0026] In an embodiment of the present invention, only one spring
33 may be disposed between the outer board 31 and the inner board
32.
[0027] The area of the outer board 31 is larger than the area of
the inner board 32, and the area of the inner board 32 is larger
than the area of the opening 20, thereby enabling both the outer
board 31 and the inner board 32 to be capable of covering the
receiving space S.
[0028] Furthermore, when the door board 3 is laid down to cover
from one side of the case body 2, the outer board 31 and the inner
board 32 become interlocked with the case body 2 and cover the
opening 20. As shown in FIG. 2A, the outer board 31 comprises a
looped raised bar 310, and the case body 2 comprises a looped
groove 23 around the opening 20 for the raised bar 310 to wedge
therein. The inner board 32 comprises a looped first stair 320, and
the case body 2 comprises a second stair 24 around the opening 20
for the first stair 320 to wedge therein.
[0029] In addition, the connecting element 30 is a T-shaped
element, namely, the traverse part thereof is fixed onto the outer
board 31 while the vertical part thereof is fixed onto the inner
board 32. In the present embodiment, the connecting element 30
comprises a fixing sheet 301 and a cylinder 300 that is axially
disposed on the fixing sheet 301, the fixing sheet 301 is fixed to
the outer board 302 via screws 302, and one end of the cylinder 300
is a cap 300a for embedding inside the outer board 31 while the
other end of the cylinder 300 is riveted to a via hole 321 of the
inner board 32, thereby enabling the cylinder 300 to be exposed
between the inner board 32 and the outer board 31, and maintaining
a preset distance (namely, distance D) between the inner board 32
and the outer board 31. As shown in FIGS. 2B and 2C, the outer
board 31 comprises a first notch 311 at each corner for fixing the
fixing sheet 301 thereon and second notches 312 disposed at bottom
of the first notch 311 (as shown in FIG. 2C, not penetrating the
outer board 31), the second notch 312 is for disposing the cap
300a, also the fixing sheet 301 covers the second notch 312,
thereby the cap 300a is embedded in the outer board 31.
[0030] In addition, the springs 33 are for maintaining the elastic
yaw allowance for the inner board 32. When assembling the springs
33, first disposing each spring 33 in a third notch 313 of the
outer board 31. Subsequently, when using the connecting element 30
to connect the inner board 32 and the outer board 31, the inner
board 32 will push down the springs 33, and thus the springs 33 are
allocated between the outer board 31 and the inner board 32. As
shown in FIG. 2A, when the door board 3 is in an opening state,
pushing the inner board 32 toward the outer board 31 direction P,
and the inner board 32 will rebound by the springs 33.
[0031] The insulation board 4 is disposed on the inner board 32,
and the inner board 32 is located between the insulation board 4
and the outer board 31. Also, the area of the inner board 32 is
larger than the area of the insulation board 4, as shown in FIG.
2A. In the present embodiment, the insulation board 4 is loosely
matched with the inner surfaces 22a of the side boards 22 around
the opening 20.
[0032] The insulation box of the present invention applies the
springs 33 for the inner board 32 to perform elastic yaw, providing
buffering and tightening effect between the outer board 31 and the
inner board 32. After the door board 3 is laid down to cover the
opening 20, the raised bar 310 of the outer board 31 wedges in the
grooves 23 around the opening 20, and the springs 33 help adjusting
the inner board 32 to a proper position (displacing in a direction
from the outer board 31 to the opening 20, namely, from up to
down). Consequently, the first stair 320 of the inner board 32
wedges in the second stair 24 of the case body 2, enabling the
inner board 32 to seal up the opening 20, and avoiding the problem
of losing signals caused due to poor airtightness between the outer
board 31 and the inner board 32.
[0033] If the first stair 320 of the inner board 32 cannot
efficiently wedge in the second stair 24 of the case body 2 due to
getting worn out or other factors, a preset length of the cylinder
300 enables the inner board 32 and the outer board 31 to maintain a
preset distance, and the springs 33 drive the inner board 32 to
displace to a proper position for sealing up the opening 20.
[0034] Furthermore, the second notches 312 do not penetrate the
outer board 31, thereby avoiding signals from escaping via the
second notches 312 in the testing process.
[0035] Moreover, a distance D between the outer board 31 and the
inner board 32 provides the inner board 32 with displacement in
opposition to outer board 31 (as displacement direction L shown in
FIG. 2C). Therefore, a depth d of the second notch 312 is greater
than a height h of the cap for reserving a space for
displacement.
[0036] Additionally, the cylinder 300 can also be elastic, allowing
the depth of the second notch is same as the height of the cap,
without needing a space for displacement.
[0037] Please refer to FIGS. 3A through 3C, the insulation box
further comprises a latch 5 and hinges 6 for connecting the door
board 3 and the case body 2. As shown in FIGS. 3A and 3B, the latch
5 is a pneumatic latch, which is made of durable reinforced
plastics and is disposed on the outer board 31 and one of the side
boards 22, and an air tube 7 is connected with an air cylinder (not
shown in the FIG) for controlling a tenon 50 of the latch 5 to
wedge in or separate from a mortise 51 on the case body 2, thereby
enabling the door board 3 to be fixed to or released from the case
body 2. As indicated by the dotted line in FIG. 3A, the tenon 50 is
wedged in the mortise 51, thereby having the door board 3 fixed to
the case body 2. Since the tenon 50 is controlled by pneumatic
means, even after many times of use of the door board 3, the tenon
50 is not easily to worn out or get loose. Consequently, the door
board 3 and the case body 2 can maintain well-sealed, thereby
avoiding problem of losing signals from around the opening 20 and
the latch 5 due to poor airtightness of the insulation box.
[0038] As shown in FIGS. 3A and 3C, each of the said hinges has two
symmetrical side-by-side steel leaves 60 separately fixed to the
side board 22 and the outer board 31, and a pivot 61 axially
connecting the two steel leaves. The door board 3 is pivoted to the
case body 2 through the hinges, thereby enabling the door board 3
to be operated to open or close the case body 2. Also, the
symmetrical side-by-side design of the two steel leaves 60 provides
benefit of maintaining the two steel leaves 60 in good shape as
well as well-fixed, therefore the door board 3 and the case body 2
can keep airtight closeness, and further avoiding problem of losing
signal around the opening 20 due to poor airtightness of the
insulation box.
[0039] In view of the above, the insulation box of the present
invention, mainly providing the double-layered door board having an
inner and an outer boards, and further by applying the springs to
provide the inner board with buffering and tightening effect;
therefore, when using the door board to seal up the insulation box,
capable of efficiently avoiding problem of losing signal due to
poor airtightness of the insulation box in no matter what state the
latch or hinges are.
[0040] The invention has been described using exemplary preferred
embodiments. However, it is to be understood that the scope of the
invention is not limited to the disclosed embodiments. On the
contrary, it is intended to cover various modifications and similar
arrangements. The scope of the claims, therefore, should be
accorded the broadest interpretation so as to encompass all such
modifications and similar arrangements.
* * * * *