CN217158734U

CN217158734U - Shell assembly of electric connector

Info

Publication number: CN217158734U
Application number: CN202220337817.8U
Authority: CN
Inventors: 段白玉; 黄斌; 郭荣哲; 陈宏基
Original assignee: Dongguan Luxshare Technology Co Ltd
Current assignee: Dongguan Luxshare Technology Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-08-09
Anticipated expiration: 2032-02-18

Abstract

A shell assembly of an electric connector comprises a circumferential wall and an abutting elastic sheet. The circumferential wall includes a mating space to receive a mating connector in a mating direction. The abutting elastic sheet comprises a first abutting part and a first fixing part, wherein the first abutting part protrudes into the abutting space and is used for abutting against the abutting connector; the circumferential wall is further provided with a mounting hole, and the first fixing portion is riveted and fixed in the mounting hole. Compared with the prior art, the utility model discloses make full use of the thickness of circumference wall has reduced first fixed part with butting connector's friction has improved casing assembly's reliability.

Description

Shell assembly of electric connector

Technical Field

The utility model relates to an electric connector's casing subassembly belongs to connector technical field.

Background

Some prior art electrical connectors, such as SFP connectors, typically include a housing assembly that is formed from several pieces of sheet metal that are spliced together. The housing assembly is located at the front of the electrical connector to guide and at least partially receive the mating connector.

In order to improve the grounding effect and increase the insertion force with the mating connector, the housing assembly is usually provided with a plurality of abutting spring pieces. However, when the mating connector is pulled out, the abutting elastic pieces are easily hooked out, resulting in product failure. How to fix the abutting elastic sheet so as to reduce the risk of being hooked out by the butting connector is a technical problem to be solved by technical personnel in the technical field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a higher electric connector's of reliability housing assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a housing assembly of an electrical connector, the housing assembly comprising:

a circumferential wall comprising a docking space to receive a docking connector in a docking direction; and

the abutting elastic sheet comprises a first abutting part and a first fixing part, wherein the first abutting part protrudes into the abutting space and is used for abutting against the butting connector, and the first fixing part is connected with the first abutting part;

the circumferential wall is further provided with a mounting hole, the first fixing portion is located on the upper portion and/or the lower portion of the abutting elastic sheet in the vertical direction, the vertical direction is perpendicular to the abutting direction, and the first fixing portion is fixed in the mounting hole.

As a further improved technical solution of the present invention, the first fixing portion corresponds to the shape of the mounting hole.

As a further improved technical solution of the present invention, the first fixing portion includes a first fixing protruding piece located on the upper portion of the abutting elastic piece and a second fixing protruding piece located on the lower portion of the abutting elastic piece, and the first fixing protruding piece and the second fixing protruding piece are arranged at an interval in the up-down direction; the mounting holes comprise a first mounting hole and a second mounting hole, wherein the first fixing lug is riveted and fixed in the first mounting hole, and the second fixing lug is riveted and fixed in the second mounting hole.

As a further improved technical solution of the present invention, the first fixing portion does not protrude into the docking space.

As a further improved technical solution of the present invention, the circumferential wall includes a first side wall, a second side wall, a top wall and a bottom wall, wherein the first side wall and the second side wall are disposed opposite to each other, the top wall and the bottom wall are disposed opposite to each other, and the first side wall, the second side wall, the top wall and the bottom wall jointly enclose the docking space;

the mounting hole is formed in the second side wall.

As a further improved technical solution of the present invention, the housing assembly further includes an insertion space disposed side by side to the left and right of the docking space, and the second sidewall is located between the docking space and the insertion space;

the butt joint elastic sheet comprises a second butt joint part and a second fixing part, wherein the first butt joint part and the second butt joint part are symmetrically arranged, the first fixing part and the second fixing part are symmetrically arranged, the second butt joint part extends into the splicing space in a protruding mode, the first butt joint part and the second butt joint part are clamped on the left side and the right side of the second side wall, and the first fixing part and the second fixing part are attached together and fixed in the mounting hole together.

As a further improved technical solution of the present invention, the butt elastic piece includes a connection portion between the first abutting portion and the front end edge of the second abutting portion, the front end edge and the second side wall abut against each other.

As a further improved technical solution of the present invention, the second fixing portion includes a first fixing lug located on the upper portion of the butt elastic sheet and a second fixing lug located on the lower portion of the butt elastic sheet, the first fixing lug is close to the top wall, the second fixing lug is close to the bottom wall, the first fixing lug of the first fixing portion is riveted with the second fixing lug respectively the first fixing lug of the second fixing portion is riveted with the second fixing lug.

As a further improved technical solution of the present invention, the housing assembly further includes:

the peripheral wall comprises a first wall part, a second wall part, a third wall part and a fourth wall part, wherein the first wall part is arranged opposite to the second wall part, the third wall part is arranged opposite to the fourth wall part, and the first wall part, the second wall part, the third wall part and the fourth wall part jointly enclose a containing space; and

the radiator is accommodated in the accommodating space along the direction opposite to the butt joint direction;

the peripheral wall comprises a first limiting protrusion, a second limiting protrusion, a third limiting protrusion and a limiting elastic sheet, wherein the first limiting protrusion, the second limiting protrusion, the third limiting protrusion and the limiting elastic sheet all protrude inwards into the accommodating space, the first limiting protrusion is used for limiting the radiator to move upwards, the second limiting protrusion is used for limiting the radiator to move downwards, the third limiting protrusion is used for limiting the radiator to move forwards, and the limiting elastic sheet is used for limiting the radiator to move backwards after the radiator is installed in place.

As a further improved technical scheme of the utility model, the butt shell fragment is the electromagnetic shield piece.

Compared with the prior art, the utility model discloses a set up the mounting hole on the circumference wall, and will first fixed part riveting is fixed in the mounting hole, make full use of the thickness of circumference wall has reduced first fixed part with butting connector's friction has improved casing assembly's reliability.

Drawings

Fig. 1 is a schematic perspective view of the electrical connector of the present invention mounted on a circuit board.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a schematic perspective cross-sectional view of fig. 1.

Fig. 5 is a front view of fig. 4.

Fig. 6 is a schematic perspective cross-sectional view of fig. 1 at another angle.

Fig. 7 is a front view of fig. 6.

Fig. 8 is a perspective view of a heat sink.

Fig. 9 is a front view of fig. 8.

Fig. 10 is a partially exploded perspective view of fig. 8.

Fig. 11 is a front view of the electrical connector of the present invention with the outer housing removed from fig. 2.

Fig. 12 is a partially exploded perspective view of fig. 1 with the light directing elements separated.

Fig. 13 is a partial exploded perspective view of fig. 1 with the abutting spring separated.

Fig. 14 is a top view of one of the abutting leaves of fig. 13.

Fig. 15 is a left side view of fig. 13.

Fig. 16 is a right side view of fig. 13.

Fig. 17 is a left side view of the outer housing of the electrical connector of the present invention after separation.

Fig. 18 is a right side view of the housing of the electrical connector of the present invention after separation.

Fig. 19 is a further exploded left side view of fig. 18.

Fig. 20 is a further exploded left side view of fig. 17.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The description set forth below in the exemplary detailed description does not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the invention, as recited in the claims of the invention.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in the specification and claims of this application, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the utility model discloses in appear "a plurality of", its meaning indicates two and more than two.

Referring to fig. 1 to 20, the present invention discloses an electrical connector, which includes a housing assembly 100. The shell assembly 100 comprises an outer shell 1, a plurality of partition plates 2 positioned in the outer shell 1, a plurality of inserting sheets 3 installed on the outer shell 1, a plurality of heat dissipation devices 4 and a plurality of light guide elements 5.

Referring to fig. 4, in the illustrated embodiment of the present invention, the outer casing 1 is substantially shaped like a frame, and includes a top wall 11, a bottom wall 12, a first outer sidewall 13 connecting one side of the top wall 11 and one side of the bottom wall 12, and a second outer sidewall 14 connecting the other side of the top wall 11 and the other side of the bottom wall 12.

As shown in fig. 12, the top wall 11 is provided with a plurality of locking elastic pieces 111 protruding upwards. In the illustrated embodiment of the present invention, the locking elastic sheet 111 is formed by stamping the top wall 11, and the locking elastic sheet 111 includes a supporting portion 111a and a locking portion 111b connected to the supporting portion 111 a.

The heat dissipation devices 4 include a top heat sink 41 mounted on the top wall 11, and the top heat sink 41 is provided with a mounting groove 411. The locking elastic piece 111 passes through the mounting groove 411 and limits the top heat sink 41 to move upwards. Specifically, in the illustrated embodiment of the present invention, the locking portion 111b is twisted after passing through the mounting groove 411 to abut downward against the top heat sink 41. With this arrangement, the roof heat sink 41 can be stably mounted on the roof wall 11.

In the illustrated embodiment of the present invention, the light guide element 5 is mounted on the top heat sink 41.

Referring to fig. 1 to 7, the plurality of partition plates 2 include a first partition plate 21, a second partition plate 22 located below the first partition plate 21, and a middle partition plate 23 installed in the middle of the first partition plate 21 and the second partition plate 22. In the illustrated embodiment of the present invention, the first partition 21 and the second partition 22 are arranged substantially horizontally, and the intermediate partition 23 is arranged substantially vertically. The plurality of partition boards 2 divide the outer shell 1 into a plurality of butt joint spaces 201 and a plurality of splicing spaces 202. In the illustrated embodiment of the present invention, the plurality of docking spaces 201 are two and stacked up and down, the plurality of docking spaces 202 are two and stacked up and down, and the docking spaces 201 and the corresponding docking spaces 202 are arranged side by side from left to right. In other words, the partitions 2 divide the outer housing 1 into four ports arranged in a 2 x 2 matrix to receive mating connectors (e.g., SPF plug connectors). The following description will be given by taking as an example one docking space 201 and one plugging space 202 located at the upper part and arranged side by side at the left and right.

As shown in fig. 4, the housing assembly 100 includes a peripheral wall 6, and the peripheral wall 6 includes a first wall 61, a second wall 62, a third wall 63, and a fourth wall 64, wherein the first wall 61 is disposed opposite to the second wall 62, and the third wall 63 is disposed opposite to the fourth wall 64. The first wall portion 61, the second wall portion 62, the third wall portion 63 and the fourth wall portion 64 together enclose a receiving space 60. The plurality of heat dissipating devices 4 includes a heat sink 42 installed in the receiving space 60.

In the illustrated embodiment of the present invention, the number of the accommodating spaces 60 is two, and the two accommodating spaces are respectively located between the docking space 201 and the two plugging spaces 202 in the vertical direction. Two abutting spaces 201 located at the upper and lower sides of the accommodating space 60 in the vertical direction are both disposed adjacent to the accommodating space 60. Two insertion spaces 202 located at the upper and lower sides of the accommodating space 60 in the vertical direction are both disposed adjacent to the accommodating space 60. The mating space 201 and the plugging space 202 are used for receiving the mating connector (not shown) along a mating direction a.

The heat sink 42 is accommodated in the accommodating space 60 in a direction opposite to the mating direction a.

As shown in fig. 4 to 7 and 11, the peripheral wall 6 includes a first limiting protrusion 65, a second limiting protrusion 66, a third limiting protrusion 67 and a limiting elastic sheet 68, the first limiting protrusion 65, the second limiting protrusion 66, the third limiting protrusion 67 and the limiting elastic sheet 68 all protrude inwards into the accommodating space 60, wherein the first limiting protrusion 65 is used for limiting the upward movement of the heat sink 42, the second limiting protrusion 66 is used for limiting the downward movement of the heat sink 42, the third limiting protrusion 67 is used for limiting the forward movement of the heat sink 42, and the limiting elastic sheet 68 is used for limiting the rearward movement of the heat sink 42 after the heat sink 42 is mounted in place.

Referring to fig. 4 to 10, in the illustrated embodiment of the present invention, the heat sink 42 includes a heat dissipating substrate 421 and a plurality of heat dissipating fins 422 fixed on the heat dissipating substrate 421. The heat sink 42 also includes heat dissipation channels 420 between adjacent fins 422. The heat dissipating substrate 421 has an upper surface 4211 and a lower surface 4212. Referring to fig. 7, in the embodiment of the present invention, the heat dissipating base plate 421 has a groove 4213, and the lower surface 4212 is located in the groove 4213.

In the illustrated embodiment of the present invention, the first limiting projection 65 is provided on the first wall portion 61 and the second wall portion 62, and the first limiting projection 65 is formed by punching from the first wall portion 61 and the second wall portion 62. The first limiting protrusion 65 abuts against the upper surface 4211 of the heat dissipating substrate 421.

The second limiting protrusion 66 is disposed on the first wall portion 61 and the second wall portion 62, and the second limiting protrusion 66 is formed by punching the first wall portion 61 and the second wall portion 62. The second position-limiting protrusion 66 abuts against the lower surface 4212 of the heat-dissipating substrate 421.

The heat sink 42 further has a front end face 423 (please refer to fig. 8), and the third limiting protrusion 67 abuts against the front end face 423.

As shown in fig. 11, the limiting elastic sheet 68 is formed by stamping from the third wall 63, the limiting elastic sheet 68 extends in a direction opposite to the butting direction a, and the limiting elastic sheet 68 includes a terminal portion 681 at a front end. The end portions 681 are angled downward to abut the heat sink 42 after the heat sink 42 is in place, preventing the heat sink 42 from moving rearward.

Referring to fig. 1 and 11, in the embodiment of the present invention, the plurality of inserting pieces 3 include a first inserting piece 31 and a second inserting piece 32, and the first inserting piece 31 and the second inserting piece 32 are substantially U-shaped. The first insert sheet 31 and the second insert sheet 32 have similar structures, and only the first insert sheet 31 will be described as an example.

The first inserting sheet 31 comprises a front end wall 311, a first extending portion 312 extending from the top of the front end wall 311 to the rear, and a second extending portion 313 extending from the bottom of the front end wall 311 to the rear, wherein the first extending portion 312 is located between the upper end docking space 201 and the receiving space 60, and the second extending portion 313 is located between the receiving space 60 and the lower end docking space 201. The upper and lower ends of the receiving space 60 are respectively limited by the first extension 312 and the second extension 313, and the front end of the receiving space 60 is limited by the front end wall 311. In the illustrated embodiment of the present invention, the first wall portion 61 is a part of the first outer sidewall 13, the second wall portion 62 is a part of the middle partition 23, the third wall portion 63 is the first extension portion 312, and the fourth wall portion 64 is the second extension portion 313. In the illustrated embodiment of the present invention, the first extension 312 is welded to the first partition 21, and the second extension 313 is welded to the second partition 22.

As shown in fig. 13 to fig. 20, the housing assembly 100 further includes a circumferential wall 7, and the circumferential wall 7 includes the abutting space 201. In the illustrated embodiment of the present invention, the circumferential wall 7 includes a first side wall 71, a second side wall 72, a top wall 11 and a bottom wall 73, wherein the first side wall 71 is opposite to the second side wall 72, and the top wall 11 is opposite to the bottom wall 73. The first side wall 71, the second side wall 72, the top wall 11 and the bottom wall 73 together enclose the docking space 201.

In the illustrated embodiment of the present invention, the first side wall 71 is a part of the first outer side wall 13, the second side wall 72 is a part of the middle partition 23, and the bottom wall 73 is the first extending portion 312.

As shown in fig. 13 and 14, the inserting piece 3 includes an abutting elastic piece 33. The abutting elastic piece 33 is an electromagnetic shielding piece, and is made of, for example, a conductive metal. The abutting elastic piece 33 includes a first abutting portion 331, a second abutting portion 332, a first fixing portion 333, a second fixing portion 334, and a front end edge 335 connecting the first abutting portion 331 and the second abutting portion 332. The front edge 335 abuts against the second sidewall 72 to limit the position. In the illustrated embodiment of the present invention, the first abutting portion 331 and the second abutting portion 332 are symmetrically disposed, and the first fixing portion 333 and the second fixing portion 334 are symmetrically disposed. The first abutting portion 331 protrudes into the abutting space 201 and is configured to abut against a mating connector, and the second abutting portion 332 protrudes into the inserting space 202 and is configured to abut against a mating connector.

The circumferential wall 7 is further provided with a mounting hole 70, and the first fixing portion 333 is riveted into the mounting hole 70. The first fixing part 333 does not protrude into the docking space 201, for example, the thickness of the first fixing part 333 is less than or equal to the depth of the mounting hole 70, so the first fixing part 333 does not protrude with respect to the mounting hole 70; alternatively, the mounting hole 70 penetrates the circumferential wall 7, and the thickness of the first fixing part 333 is less than or equal to the depth of the mounting hole 70, so that the first fixing part 333 does not protrude with respect to the mounting hole 70; alternatively, the first fixing portion 333 is flush with the wall surface of the circumferential wall 7 and is flush with the circumferential wall 7, or the first fixing portion 333 is lower than the wall surface of the circumferential wall 7 and forms a recess in the circumferential wall 7. The above arrangement is to reduce the influence of insertion/extraction of the counterpart connector. In particular, the quality risk of the first fixing part 333 being hooked out during the unplugging of the counter connector is reduced.

As shown in fig. 19, the first fixing portion 333 corresponds to the shape of the mounting hole 70 to facilitate riveting. Specifically, in the illustrated embodiment of the present invention, the mounting hole 70 is disposed on the second side wall 72, and the mounting hole 721 penetrates the second side wall 72 in the left-right direction to communicate the docking space 201 and the insertion space 202. The first fixing portion 333 and the second fixing portion 334 are attached together and riveted together in the mounting hole 70.

In the illustrated embodiment of the present invention, the first fixing portion 333 includes a first fixing tab 3331 located on an upper portion of the abutting elastic piece 33 and a second fixing tab 3332 located on a lower portion of the abutting elastic piece 33, and the first fixing tab 3331 and the second fixing tab 3332 are spaced apart from each other. The mounting hole 70 includes a first mounting hole 701 and a second mounting hole 702, wherein the first fixing tab 3331 is fixed to the first mounting hole 701 by caulking, and the second fixing tab 3332 is fixed to the second mounting hole 702 by caulking. In the illustrated embodiment of the present invention, the first fixing tab 3331 and the second fixing tab 3332 are respectively located at two ends (e.g., upper and lower ends) of the abutting elastic piece 33, wherein the first fixing tab 3331 is close to the top wall 11, and the second fixing tab 3332 is close to the bottom wall 73.

Compared with the prior art, the utility model realizes the limit of the radiator 42 in the up, down, front and back directions by arranging the first limit bulge 65, the second limit bulge 66, the third limit bulge 67 and the limit elastic sheet 68, and improves the installation stability of the radiator 42; additionally, the utility model discloses a set up spacing shell fragment 68, be convenient for install radiator 42 just can it is spacing to it after the installation of radiator 42 targets in place.

In addition, the utility model discloses a set up mounting hole 70 on the circumference wall 7, and will first fixed part 333 riveting is fixed in the mounting hole 70, reduced first fixed part 333 receives the influence of the insertion/extraction of butting connector, especially reduced first fixed part 333 is in the risk that the butting connector is drawn out the time and is colluded.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present invention should be based on the technical personnel in the technical field, although the present specification has been described in detail with reference to the above embodiments, however, the skilled in the art should understand that the technical personnel in the technical field can still modify the present invention or substitute the same, and all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A housing assembly (100) for an electrical connector, characterized by: the housing assembly (100) includes:

a circumferential wall (7), the circumferential wall (7) comprising a docking space (201), the docking space (201) being to receive a docking connector in a docking direction (A); and

the abutting elastic sheet (33), the abutting elastic sheet (33) comprises a first abutting part (331) and a first fixing part (333), wherein the first abutting part (331) protrudes into the abutting space (201) and is used for abutting against the abutting connector, and the first fixing part (333) is connected with the first abutting part (331);

the circumferential wall (7) is further provided with a mounting hole (70), the first fixing portion (333) is located at the upper portion and/or the lower portion of the abutting elastic sheet (33) in the vertical direction, the vertical direction is perpendicular to the abutting direction (A), and the first fixing portion (333) is fixed in the mounting hole (70).

2. The housing assembly (100) of an electrical connector of claim 1, wherein: the first fixing portion (333) corresponds to the shape of the mounting hole (70).

3. The housing assembly (100) of an electrical connector of claim 1, wherein: the first fixing portion (333) includes a first fixing tab (3331) located at the upper portion of the abutting elastic piece (33) and a second fixing tab (3332) located at the lower portion of the abutting elastic piece (33), and the first fixing tab (3331) of the first fixing portion (333) and the second fixing tab (3332) of the first fixing portion (333) are provided at an interval in the vertical direction; the mounting hole (70) includes a first mounting hole (701) and a second mounting hole (702), wherein the first fixing tab (3331) of the first fixing portion (333) is fixed in the first mounting hole (701), and the second fixing tab (3332) of the first fixing portion (333) is fixed in the second mounting hole (702).

4. A housing assembly (100) of an electrical connector as in claim 3 wherein: the first fixing part (333) does not protrude into the docking space (201).

5. A housing assembly (100) of an electrical connector as in claim 3 wherein: the circumferential wall (7) comprises a first side wall (71), a second side wall (72), a top wall (11) and a bottom wall (73), wherein the first side wall (71) is arranged opposite to the second side wall (72), the top wall (11) is arranged opposite to the bottom wall (73), and the first side wall (71), the second side wall (72), the top wall (11) and the bottom wall (73) jointly enclose the docking space (201);

the mounting hole (70) is provided on the second side wall (72).

6. The housing assembly (100) of an electrical connector of claim 5, wherein: the shell assembly (100) further comprises a plug space (202) arranged side by side left and right with the butt joint space (201), and the second side wall (72) is located in the middle of the butt joint space (201) and the plug space (202);

the abutting elastic sheet (33) comprises a second abutting portion (332) and a second fixing portion (334), wherein the first abutting portion (331) and the second abutting portion (332) are symmetrically arranged, the first fixing portion (333) and the second fixing portion (334) are symmetrically arranged, the second abutting portion (332) protrudes into the inserting space (202), the first abutting portion (331) and the second abutting portion (332) are clamped on the left side and the right side of the second side wall (72), and the first fixing portion (333) and the second fixing portion (334) are abutted together and fixed in the mounting hole (70) together.

7. The housing assembly (100) of an electrical connector of claim 6, wherein: the abutting elastic sheet (33) comprises a front end edge (335) connecting the first abutting portion (331) and the second abutting portion (332), and the front end edge (335) is abutted against the second side wall (72).

8. The housing assembly (100) of an electrical connector of claim 6, wherein: the second fixing portion (334) includes a first fixing tab (3331) located on the upper portion of the abutting elastic piece (33) and a second fixing tab (3332) located on the lower portion of the abutting elastic piece (33), the first fixing tab (3331) of the second fixing portion (334) is close to the top wall (11), the second fixing tab (3332) of the second fixing portion (334) is close to the bottom wall (73), and the first fixing tab (3331) and the second fixing tab (3332) of the first fixing portion (333) are respectively riveted to the first fixing tab (3331) and the second fixing tab (3332) of the second fixing portion (334).

9. The housing assembly (100) of an electrical connector according to any one of claims 1 to 8, wherein: the housing assembly (100) further comprises:

a peripheral wall (6), wherein the peripheral wall (6) comprises a first wall part (61), a second wall part (62), a third wall part (63) and a fourth wall part (64), the first wall part (61) is arranged opposite to the second wall part (62), the third wall part (63) is arranged opposite to the fourth wall part (64), and the first wall part (61), the second wall part (62), the third wall part (63) and the fourth wall part (64) jointly enclose a containing space (60); and

a heat sink (42), the heat sink (42) being housed in the housing space (60) in a direction opposite to the mating direction (A);

the peripheral wall (6) comprises a first limiting protrusion (65), a second limiting protrusion (66), a third limiting protrusion (67) and a limiting elastic sheet (68), the first limiting protrusion (65), the second limiting protrusion (66), the third limiting protrusion (67) and the limiting elastic sheet (68) all protrude inwards into the accommodating space (60), the first limiting protrusion (65) is used for limiting the heat radiator (42) to move upwards, the second limiting protrusion (66) is used for limiting the heat radiator (42) to move downwards, the third limiting protrusion (67) is used for limiting the heat radiator (42) to move forwards, and the limiting elastic sheet (68) is used for limiting the heat radiator (42) to move backwards after the heat radiator (42) is installed in place.

10. The housing assembly (100) of an electrical connector according to any one of claims 1 to 8, wherein: the abutting elastic sheet (33) is an electromagnetic shielding sheet.