U.S. patent application number 15/869624 was filed with the patent office on 2018-12-27 for electrical connector.
The applicant listed for this patent is Lotes Co., Ltd. Invention is credited to Zuo Feng Jin, Ted Ju.
Application Number | 20180376609 15/869624 |
Document ID | / |
Family ID | 62922703 |
Filed Date | 2018-12-27 |
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United States Patent
Application |
20180376609 |
Kind Code |
A1 |
Ju; Ted ; et al. |
December 27, 2018 |
ELECTRICAL CONNECTOR
Abstract
An electrical connector for electrically connecting a chip
module, including an insulating body provided with multiple
accommodating grooves in multiple rows and vertically passing
through the insulating body. Each two adjacent accommodating
grooves are provided with a partition or a space above the
partition. The insulating body is concavely provided downward with
at least one groove correspondingly located on the partition or in
the space above the partition. The groove has a bottom surface and
a side surface being closed and formed by extending upward from a
periphery of the bottom surface, and the groove is configured for a
pushing pin to push and eject the insulating body from a mold. The
insulating body is protrudingly provided upward with a plurality of
protruding blocks, configured to support the chip module. The
groove and all the protruding blocks are not located on the same
partition.
Inventors: |
Ju; Ted; (Keelung, TW)
; Jin; Zuo Feng; (Keelung, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Lotes Co., Ltd |
Keelung |
|
TW |
|
|
Family ID: |
62922703 |
Appl. No.: |
15/869624 |
Filed: |
January 12, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01R 12/714 20130101;
H01R 12/73 20130101; H01R 13/40 20130101; H01R 43/24 20130101; H01R
12/52 20130101; H01R 12/7082 20130101; H01R 13/502 20130101; H01R
13/514 20130101; H01R 12/716 20130101; H01R 43/18 20130101; H01R
13/2464 20130101; H05K 7/1061 20130101 |
International
Class: |
H05K 7/10 20060101
H05K007/10; H01R 43/24 20060101 H01R043/24; H01R 13/40 20060101
H01R013/40; H01R 13/502 20060101 H01R013/502; H01R 12/52 20110101
H01R012/52; H01R 13/24 20060101 H01R013/24; H01R 12/71 20110101
H01R012/71 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 23, 2017 |
CN |
201710487265.2 |
Jun 28, 2017 |
CN |
201710506386.7 |
Claims
1. An electrical connector for electrically connecting a chip
module, comprising: an insulating body, provided with a plurality
of accommodating grooves in multiple rows and vertically passing
through the insulating body, wherein: each two adjacent ones of the
accommodating grooves are provided with a partition or a space
above the partition; the insulating body is concavely provided
downward with at least one groove correspondingly located on the
partitions or in the space above the partition, the groove has a
bottom surface and a side surface being closed and formed by
extending upward from a periphery of the bottom surface, and the
groove is configured for a pushing pin to push and eject the
insulating body from a mold; and the insulating body is
protrudingly provided upward with a plurality of protruding blocks,
configured to support the chip module, wherein the at least one
groove and all of the protruding blocks spaced apart from the
groove are not located on a same one of the partitions; and a
plurality of terminals, correspondingly accommodated in the
accommodating grooves and configured to conductively connected with
the chip module.
2. The electrical connector according to claim 1, wherein a
plurality of the grooves and the protruding blocks are arranged in
a matrix altogether.
3. The electrical connector according to claim 1, wherein the at
least one groove is concavely formed downward from an upper surface
of the partition.
4. The electrical connector according to claim 1, wherein the at
least one groove is higher than an upper surface of the partition,
and a supporting surface is connected to a top end of the side
surface for supporting the chip module.
5. The electrical connector according to claim 1, wherein each of
the at least one groove is correspondingly located between two
protruding blocks.
6. The electrical connector according to claim 1, wherein each of
the protruding blocks has a supporting surface for supporting the
chip module, each of the supporting surface and the bottom surface
is in a rectangular shape, and an area of the supporting surface is
greater than an area of the bottom surface.
7. The electrical connector according to claim 6, wherein long
sides of the supporting surface are parallel to long sides of the
bottom surface, and short sides of the supporting surface are
parallel to short sides of the bottom surface.
8. The electrical connector according to claim 1, wherein the
number of the at least one groove is smaller than the number of the
protruding blocks.
9. The electrical connector according to claim 8, wherein the
number of the at least one groove is less than half of the number
of the protruding blocks.
10. The electrical connector according to claim 8, wherein each of
the terminals is formed by punching a metal plate, and has a base
retained in the accommodating grooves and an elastic arm formed by
bending and extending upward from the base, configured to abut
against the chip module, and wherein each of the protruding blocks
faces a plate surface of the elastic arm.
11. The electrical connector according to claim 10, wherein a strip
connecting portion is formed by extending vertically upward from
one side of the base, configured to connect a material strip, and
wherein the at least one groove is located between the elastic arm
and the strip connecting portion adjacent to each other.
Description
CROSS-REFERENCE TO RELATED PATENT APPLICATION
[0001] This application claims priority to and the benefit of,
pursuant to 35 U.S.C. .sctn. 119(a), Patent Application Serial No.
CN201710487265.2 filed in P.R. China on Jun. 23, 2017, and Patent
Application Serial No. CN201710506386.7 filed in P.R. China on Jun.
28, 2017. The entire contents of the above-identified applications
are incorporated herein in their entireties by reference.
[0002] Some references, which may include patents, patent
applications and various publications, are cited and discussed in
the description of this disclosure. The citation and/or discussion
of such references is provided merely to clarify the description of
the present disclosure and is not an admission that any such
reference is "prior art" to the disclosure described herein. All
references cited and discussed in this specification are
incorporated herein by reference in their entireties and to the
same extent as if each reference was individually incorporated by
reference.
FIELD
[0003] The present invention relates to an electrical connector,
and more particularly to an electrical connector for electrically
connecting a chip module to a circuit board.
BACKGROUND
[0004] An existing electrical connector for connecting a chip
module to a circuit board includes an insulating body. The
insulating body is provided with multiple accommodating grooves
passing through the surface thereof, and multiple terminals are
retained in the accommodating grooves. One end of each terminal
abuts against the chip module, and the other end is soldered to the
circuit board, thereby achieving electrical conduction of the chip
module and the circuit board. A partition is included between the
adjacent accommodating grooves, and a protruding block is formed by
protruding upwards from the partition. In use, the chip module is
mounted onto the electrical connector, and then a downward acting
force is applied to the chip module, such that the chip module
downward abuts the terminals to ensure good contact of the chip
module with the terminals. Since the protruding block upward
supports the chip module, it can be avoided that the chip module is
crushed and it is prevented that the terminals are deformed
excessively when pressed. During the molding of the insulating
body, the insulating body is injection molded in a mol. After
completion of the injection molding, the insulating body needs to
be separated from the mold. Therefore, multiple grooves are
disposed on the partition, allowing people to use a pushing pin to
push in the groove to separate the insulating body from the mold.
However, the surface of the partition needs to be provided with the
protruding blocks and the grooves spaced apart, thereby causing an
excessively large surface area of the partition, resulting in a
larger interval between the terminals, and hindering the
development of terminal intensification of the electrical
connector.
[0005] Therefore, a heretofore unaddressed need to design an
improved electrical connector exists in the art to address the
aforementioned deficiencies and inadequacies.
SUMMARY
[0006] In view of the problems in the related art, an objective of
the present invention is directed to an electrical connector which
facilitates the development of terminal intensification.
[0007] To achieve the foregoing objective, one aspect of the
invention provides an electrical connector, which includes: an
insulating body, provided with a plurality of accommodating grooves
in multiple rows and vertically passing through the insulating
body, wherein: each two adjacent ones of the accommodating grooves
are provided with a partition or a space above the partition; the
insulating body is concavely provided downward with at least one
groove correspondingly located on the partitions or in the space
above the partition, the groove has a bottom surface and a side
surface being closed and formed by extending upward from a
periphery of the bottom surface, and the groove is configured for a
pushing pin to push and eject the insulating body from a mold; and
the insulating body is protrudingly provided upward with a
plurality of protruding blocks, configured to support the chip
module, wherein the at least one groove and all of the protruding
blocks spaced apart from the groove are not located on a same one
of the partitions; and a plurality of terminals, correspondingly
accommodated in the accommodating grooves and configured to
conductively connected with the chip module.
[0008] In certain embodiments, a plurality of the grooves and the
protruding blocks are arranged in a matrix altogether.
[0009] In certain embodiments, the at least one groove is concavely
formed downward from an upper surface of the partition.
[0010] In certain embodiments, the at least one groove is higher
than an upper surface of the partition, and a supporting surface is
connected to a top end of the side surface for supporting the chip
module.
[0011] In certain embodiments, each of the at least one groove is
correspondingly located between two protruding blocks.
[0012] In certain embodiments, each of the protruding blocks has a
supporting surface for supporting the chip module, each of the
supporting surface and the bottom surface is in a rectangular
shape, and an area of the supporting surface is greater than an
area of the bottom surface.
[0013] In certain embodiments, long sides of the supporting surface
are parallel to long sides of the bottom surface, and short sides
of the supporting surface are parallel to short sides of the bottom
surface.
[0014] In certain embodiments, the number of the at least one
groove is smaller than the number of the protruding blocks.
[0015] In certain embodiments, the number of the at least one
groove is less than half of the number of the protruding
blocks.
[0016] In certain embodiments, each of the terminals is formed by
punching a metal plate, and has a base retained in the
accommodating grooves and an elastic arm formed by bending and
extending upward from the base, configured to abut against the chip
module, and wherein each of the protruding blocks faces a plate
surface of the elastic arm.
[0017] In certain embodiments, a strip connecting portion is formed
by extending vertically upward from one side of the base,
configured to connect a material strip, and wherein the at least
one groove is located between the elastic arm and the strip
connecting portion adjacent to each other.
[0018] Compared with the related art, the electrical connector
according to certain embodiments of the invention has the following
beneficial effects. In the electrical connector, the insulating
body is concavely provided downward with at least one groove
correspondingly located on the partition or in the space above the
partition, and the groove and all the protruding blocks spaced
apart from the groove are not located on the same one of the
partitions, such that it is unnecessary that one of the partitions
is simultaneously provided with the grooves and the protruding
blocks spaced apart, thereby decreasing a surface area of each
partition, further reducing an interval between the terminals, and
facilitating an intensive design of the terminals of the electrical
connector.
[0019] These and other aspects of the present invention will become
apparent from the following description of the preferred embodiment
taken in conjunction with the following drawings, although
variations and modifications therein may be effected without
departing from the spirit and scope of the novel concepts of the
disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings illustrate one or more embodiments
of the disclosure and together with the written description, serve
to explain the principles of the disclosure. Wherever possible, the
same reference numbers are used throughout the drawings to refer to
the same or like elements of an embodiment.
[0021] FIG. 1 is a schematic perspective view of an insulating body
according to a first embodiment of an electrical connector of the
present invention;
[0022] FIG. 2 is a schematic top view of the insulating body of the
electrical connector according to the first embodiment of the
present invention;
[0023] FIG. 3 is a schematic view of a demolding process of the
insulating body of the electrical connector according to the first
embodiment of the present invention;
[0024] FIG. 4 is a schematic view of the completely demolded
insulating body of the electrical connector according to the first
embodiment of the present invention;
[0025] FIG. 5 is a partial schematic perspective exploded view of
the electrical connector according to the first embodiment of the
present invention;
[0026] FIG. 6 is a schematic perspective view of the electrical
connector before assembling a chip module and a circuit board
according to the first embodiment of the present invention; and
[0027] FIG. 7 is a schematic perspective view of an insulating body
of an electrical connector according to a second embodiment of the
present invention.
DETAILED DESCRIPTION
[0028] The present invention is more particularly described in the
following examples that are intended as illustrative only since
numerous modifications and variations therein will be apparent to
those skilled in the art. Various embodiments of the invention are
now described in detail. Referring to the drawings, like numbers
indicate like components throughout the views. As used in the
description herein and throughout the claims that follow, the
meaning of "a", "an", and "the" includes plural reference unless
the context clearly dictates otherwise. Also, as used in the
description herein and throughout the claims that follow, the
meaning of "in" includes "in" and "on" unless the context clearly
dictates otherwise. Moreover, titles or subtitles may be used in
the specification for the convenience of a reader, which shall have
no influence on the scope of the present invention.
[0029] It will be understood that when an element is referred to as
being "on" another element, it can be directly on the other element
or intervening elements may be present therebetween. In contrast,
when an element is referred to as being "directly on" another
element, there are no intervening elements present. As used herein,
the term "and/or" includes any and all combinations of one or more
of the associated listed items.
[0030] Furthermore, relative terms, such as "lower" or "bottom" and
"upper" or "top," may be used herein to describe one element's
relationship to another element as illustrated in the Figures. It
will be understood that relative terms are intended to encompass
different orientations of the device in addition to the orientation
depicted in the Figures. For example, if the device in one of the
figures is turned over, elements described as being on the "lower"
side of other elements would then be oriented on "upper" sides of
the other elements. The exemplary term "lower", can therefore,
encompasses both an orientation of "lower" and "upper," depending
of the particular orientation of the figure. Similarly, if the
device in one of the figures is turned over, elements described as
"below" or "beneath" other elements would then be oriented "above"
the other elements. The exemplary terms "below" or "beneath" can,
therefore, encompass both an orientation of above and below.
[0031] As used herein, "around", "about" or "approximately" shall
generally mean within 20 percent, preferably within 10 percent, and
more preferably within 5 percent of a given value or range.
Numerical quantities given herein are approximate, meaning that the
term "around", "about" or "approximately" can be inferred if not
expressly stated.
[0032] As used herein, the terms "comprising", "including",
"carrying", "having", "containing", "involving", and the like are
to be understood to be open-ended, i.e., to mean including but not
limited to.
[0033] The description will be made as to the embodiments of the
present invention in conjunction with the accompanying drawings in
FIGS. 1-7. In accordance with the purposes of this invention, as
embodied and broadly described herein, this invention, in one
aspect, relates to an electrical connector.
[0034] As shown in FIGS. 5 and 6, an electrical connector 100
according to the embodiment of the present invention is used to
electrically connect a chip module 6 to a circuit board 7, and
includes an insulating body 1 (only part of the insulating body 1
is drawn in the figures, similarly hereinafter); and multiple
terminals 2 retained in the insulating body 1. One end of each
terminal 2 is conductively connected to the circuit board 7, and
the other end is soldered to the circuit board 7 by a solder ball
3.
[0035] As shown in FIG. 1, FIG. 5 and FIG. 6, the electrical
connector 100 according to a first embodiment of the present
invention is illustrated. In the present embodiment, the terminals
2 are formed by punching and bending a metal plate, and each
terminal 2 has a base 21. An elastic arm 22 is formed by bending
and extending upward from the base 21. The elastic arm 22 extends
out of the insulating body 1 and upward abuts the chip module 6. A
strip connecting portion 23 is formed by extending vertically
upward from one side of the base 21, and a top end of the strip
connecting portion 23 is used to connect one material strip (not
shown).
[0036] As shown in FIG. 1 to FIG. 3, the insulating body 1 is
provided with multiple accommodating grooves 11 in multiple rows
and vertically passing through the insulating body 1. The bases 21
are retained in the accommodating grooves 11, such that the
terminals 2 are arranged in a matrix in the insulating body 1. The
insulating body 1 forms a partition 12 between each two adjacent
accommodating grooves 11. Among the multiple partitions 12, an
upper surface of each of a part of the partitions 12 are concavely
formed downward with a groove 13. Each of the groove 13 is
configured for a pushing pin 4 to push eject the insulating body 1
from a mold 5. The remaining partitions 12 which do not form the
grooves 13 thereon protrude upward to form multiple protruding
blocks 14. As shown in FIG. 6, the protruding blocks 14 are
configured to support the chip module 6. With such an arrangement,
each of the partitions 12 is not provided with the groove 13 and
the protruding block 14 simultaneously, thereby decreasing an area
of the upper surface of each partition 12, further reducing a
distance between the terminals 2, and facilitating an intensive
design of the terminals 2 of the electrical connector 100. Further,
as shown in FIG. 4, the multiple grooves 13 and the multiple
protruding blocks 14 are arranged in a matrix altogether, such that
the grooves 13 and the protruding blocks 14 are uniformly
distributed on the upper surface of the insulating body 1. It
should be particularly noted that edges of the matrix formed by the
grooves 13 and the protruding blocks 14 are one-to-one
corresponding to edges of a matrix formed by the terminals 2, and
lengths of the edges are substantially the same. Each groove 13 is
located between two protruding blocks 14. That is, each two grooves
13 are not adjacent, such that the pushing forces of the pushing
pins 4 on the insulating body 1 are dispersed, thereby avoiding the
insulating body 1 to be destroyed due to stress concentration
during demolding. Furthermore, since demolding of the insulating
body 1 does not need a huge force and only needs uniform force
bearing points, the number of the grooves 13 can be suitably
decreased, allowing more partitions 12 to protruding form the
protruding blocks 14 thereon, thereby increasing the number of the
protruding blocks 14 and ensuring the supporting force onto the
chip module 6. In the present embodiment, in order to achieve such
a balance, the number of the grooves 13 is less than half of the
number of the protruding blocks 14, thereby avoiding the excessive
number of grooves 13 to cause the number of the protruding blocks
14 to be few.
[0037] Each protruding block 14 is provided with a supporting
surface 141 for supporting the chip module 6. The supporting
surface 141 is in a rectangular shape. The groove 13 has a bottom
surface 131 and a side surface 132 that is closed and formed by
extending upward from a periphery of the bottom surface 131. The
bottom surface 131 is in a rectangular shape as well. An area of
the supporting surface 141 is greater than an area of the bottom
surface 131. Long sides of the supporting surface 141 are parallel
to longs sides of the bottom surface 131, and short sides of the
supporting surface 141 are parallel to short sides of the bottom
surface 131, such that all the grooves 13 and the protruding blocks
14 are distributed more uniformly on the upper surface of the
insulating body 1, thereby increasing stability of the insulating
body 1. Further, each protruding block 14 faces a plate surface of
the elastic arm 22, and each groove 13 is located between the
elastic arm 22 and the strip connecting portion 23 adjacent to each
other.
[0038] As shown in FIG. 7, the insulating body 1 of the electrical
connector according to a second embodiment of the present invention
is illustrated. The main differences between the present embodiment
and the first embodiment exist in that each groove 13 is located
right above the partition 12 (also referred as a space above the
partition 12). That is, the upper surface of each partition 12 is
not concavely provided with the groove 13. Instead, each groove 13
is concavely formed downward from a top surface of one of the
protruding blocks 14. That is, the supporting surface 141 is
connected to the top end of the side surface 132, such that the
groove 13 is higher than the upper surface of the partition 12.
With such an arrangement, the groove 13 does not occupy the area of
the upper surface of one partition 12 by itself at all. That is,
the grooves 13 and the protruding blocks 14 share the area of one
partition 12, thereby ensuring the number of the protruding blocks
14, decreasing the area of the upper surface of each partition 12,
and reducing the distance between the terminals 2. Other structures
of the present embodiment are the same as those of the first
embodiment, and are not elaborated herein.
[0039] To sum up, the electrical connector 100 according to certain
embodiments of the present invention has the following advantageous
beneficial effects.
[0040] (1) The insulating body 1 is concavely provided downward
with the groove 13 correspondingly located on the partition 12 or
in the partition-above space above the partition, and the groove 13
and all the protruding blocks 14 spaced apart from the groove 13
are not located on the same partition, such that one of the
partitions 12 is not simultaneously provided with the grooves 13
and the protruding blocks 14 spaced apart, thereby decreasing a
surface area of the partition 12, further reducing an interval
between the terminals 2, and facilitating an intensive design of
the terminals 2 of the electrical connector 100.
[0041] (2) The upper surface of the partition 12 is not concavely
provided with the groove 13. Instead, each groove 13 is concavely
formed downward from a top surface of one of the protruding blocks
14, such that the groove 13 does not occupy an area of the upper
surface of the partition 12 by itself at all, and all the
partitions 12 can protrudingly extend to form the protruding blocks
14, thereby ensuring the number of the protruding blocks 14,
decreasing the area of the upper surface of each partition 12, and
reducing a distance between the terminals 2.
[0042] The above detailed description only describes preferable
embodiments of the present invention, and is not intended to limit
the patent scope of the present invention, so any equivalent
technical changes made by use of the specification of the creation
and the content shown in the drawings all fall within the patent
scope of the present invention.
[0043] The embodiments were chosen and described in order to
explain the principles of the invention and their practical
application so as to activate others skilled in the art to utilize
the invention and various embodiments and with various
modifications as are suited to the particular use contemplated.
Alternative embodiments will become apparent to those skilled in
the art to which the present invention pertains without departing
from its spirit and scope. Accordingly, the scope of the present
invention is defined by the appended claims rather than the
foregoing description and the exemplary embodiments described
therein.
* * * * *