Connector end cover, connector shell assembly and connector
By designing a pressing finger on the elastic pressing part of the connector end cap, the problem of cumbersome unlocking operation of the elastic buckle in the prior art is solved, and convenient unlocking without removing the end cap is achieved.
Patent Information
- Application Number
- CN202520436467.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In the prior art, the elastic latch unlocking part of the connector is blocked by the end cap, making it impossible to operate directly and causing the unlocking operation to be troublesome.
The connector end cap is designed with a flexible pressing part with raised pressing fingers that can directly face the unlocking part of the elastic buckle on the connector housing, and unlocking is achieved by pressing.
The elastic buckle can be unlocked without removing the end cap, making it easy to operate.
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Figure CN223884684U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a connector end cover, the connector shell assembly including the connector end cover and the connector including the connector shell assembly. BACKGROUND
[0002] In the prior art, a connector generally includes a shell, a terminal and an end cover. The terminal is inserted into the shell, and the end cover is fitted to one end of the shell. An elastic catch is formed on the shell, which is movable between a locked position of engagement with a mating shell of a mating connector and an unlocked position of disengagement from the mating shell. In the prior art, the elastic catch has an unlocking portion at its end, and the elastic catch can be moved from the locked position to the unlocked position by pressing the unlocking portion. However, in the prior art, the unlocking portion of the elastic catch is shielded by the end cover and cannot be contacted. Therefore, in the prior art, when it is necessary to unlock the elastic catch, the end cover needs to be removed, which is very troublesome. SUMMARY
[0003] The utility model aims at solving at least one aspect of the above problems and defects in the prior art.
[0004] According to one aspect of the utility model, a connector end cover is provided. The connector end cover is used to be mounted to a port of a connector shell. An elastic pressing portion is formed on the connector end cover, which has a protruding pressing finger. When the connector end cover is mounted to the connector shell, the pressing finger of the elastic pressing portion faces an unlocking portion of an elastic catch on the connector shell, so that the elastic catch can be moved from a locked position of engagement with a mating shell of a mating connector to an unlocked position of disengagement from the mating shell by pressing the elastic pressing portion.
[0005] According to one exemplary embodiment of the utility model, the connector end cover includes a peripheral wall adapted to be fitted to one end of the connector shell, and an end wall connected to the peripheral wall for capping the port of the connector shell. The elastic pressing portion further has a cantilever portion, a root of the cantilever portion being connected to one side of the end wall and being bent at a predetermined angle relative to the end wall. The pressing finger is formed on the end of the cantilever portion. An insertion hole is formed on the peripheral wall, and the pressing finger extends into the connector end cover through the insertion hole.
[0006] According to another exemplary embodiment of the utility model, the cantilever portion includes a vertical arm extending straight along the axial direction of the connector end cover, and a bent arm connected between one end of the vertical arm and one side of the end wall. The pressing finger is formed on the other end of the vertical arm and is perpendicular to the vertical arm.
[0007] According to another exemplary embodiment of the present application, the bent arm is in the shape of a U.
[0008] According to another exemplary embodiment of the present application, a flange is formed on the end of the press finger, which is adapted to abut against the edge of the inner opening of the insertion hole to retain the press finger in the insertion hole and the cantilever portion in the bent mounting state.
[0009] According to another exemplary embodiment of the present application, the thickness of the cantilever portion is less than the thickness of the peripheral wall and the end wall. When the press finger is disengaged from the insertion hole, the cantilever portion is able to reset to an initial state of extending straight upward from the end wall under the action of its own elasticity.
[0010] According to another exemplary embodiment of the present application, the cross section of the insertion hole and the press finger is circular, and the diameter of the press finger is less than the diameter of the insertion hole.
[0011] According to another exemplary embodiment of the present application, the bent arm is in the shape of an arc bent by 90 degrees, so that the cantilever portion is in the shape of an L.
[0012] According to another exemplary embodiment of the present application, the thickness of the cantilever portion is less than the thickness of the peripheral wall and the end wall, and the initial state of the cantilever portion is in the shape of an L.
[0013] According to another exemplary embodiment of the present application, when the cantilever portion is in the initial state, the press finger is located in the insertion hole and extends into the connector end cover.
[0014] According to another exemplary embodiment of the present application, the cross section of the insertion hole and the press finger is polygonal, and the size of the press finger is less than the size of the insertion hole.
[0015] According to another exemplary embodiment of the present application, a buckle structure is formed on the peripheral wall of the connector end cover, which is adapted to engage with a counter buckle structure on the connector housing to lock the connector end cover to the connector housing.
[0016] According to another exemplary embodiment of the present application, a cable hole for leading out a cable is formed on the end wall of the connector end cover, so that the cable of the connector is able to be led out from the connector housing via the cable hole.
[0017] According to another aspect of the present application, there is provided a connector housing assembly. The connector housing assembly includes: a connector housing having a port at one end thereof and an elastic buckle formed on a peripheral wall thereof; and the aforementioned connector end cover being fitted onto one end of the connector housing. The elastic buckle has an unlocking portion at one end of the connector housing, and a pressing finger of the elastic pressing portion faces the unlocking portion, so that the elastic buckle can be moved from a locking position engaged with a mating housing of a mating connector to an unlocking position disengaged from the mating housing by pressing the elastic pressing portion.
[0018] According to an exemplary embodiment of the present application, a mating buckle structure is formed on the peripheral wall at one end of the connector housing, and the mating buckle structure is engaged with a buckle structure on the connector end cover to lock the connector end cover onto one end of the connector housing.
[0019] According to another exemplary embodiment of the present application, the elastic buckle includes an elastic arm, a root of the elastic arm is connected to the peripheral wall at the other end of the connector housing, and the unlocking portion is connected to a distal end of the elastic arm; a protrusion is formed on the elastic arm, and the protrusion is used to engage with a clamping groove on the mating housing to lock the connector housing and the mating housing together.
[0020] According to another exemplary embodiment of the present application, when the elastic buckle is in the locking position, the protrusion on the elastic buckle is engaged with the clamping groove on the mating housing; and when the elastic buckle is in the unlocking position, the protrusion on the elastic buckle is disengaged from the clamping groove on the mating housing.
[0021] According to another exemplary embodiment of the present application, a terminal insertion hole is formed in the connector housing, and the terminal insertion hole is used to insert a terminal of a connector.
[0022] According to another aspect of the present application, there is provided a connector. The connector includes: the aforementioned connector housing assembly; and a terminal inserted into the connector housing.
[0023] According to an exemplary embodiment of the present application, the connector further includes: a cable extending into one end of the connector housing and electrically connected to the terminal, and the cable is led out of one end of the connector housing via a cable hole on the connector end cover.
[0024] According to another exemplary embodiment of the present application, the connector further includes: an elastic sealing member arranged in the port at one end of the connector housing and formed with a via hole allowing the cable to pass through, and the elastic sealing member is pressed between the cable and an inner wall of the connector housing to achieve sealing therebetween.
[0025] In the foregoing various exemplary embodiments according to the present application, the elastic buckle on the connector housing can be moved to the unlocked position by pressing the elastic pressing portion on the connector end cover, so that the connector end cover does not need to be removed when unlocking the elastic buckle, and the operation is very convenient.
[0026] Other objects and advantages of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating the principles of the application. It is to be understood that the drawings are designed solely for purposes of illustration to be used in conjunction with the description. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0028] Figure 2 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0029] Figure 3 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0030] Figure 4 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0031] Figure 5 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0032] Figure 6 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0033] Figure 7 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application;
[0034] Figure 8 FIG. 1 shows a perspective view of a connector housing assembly according to one exemplary embodiment of the present application; DETAILED DESCRIPTION
[0035] The technical solutions of the present application will be further described in detail below by way of examples and in conjunction with the drawings. In the description, identical or similar reference numerals indicate identical or similar components. The following description of the embodiments of the present application with reference to the drawings is intended to explain the overall inventive concept of the present application, and should not be understood as a limitation of the present application.
[0036] Additionally, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to one skilled in the art that one or more embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the present disclosure.
[0037] According to one general inventive concept of the present application, a connector end cover is provided. The connector end cover is for mounting to a port of a connector housing. An elastic press portion is formed on the connector end cover, the elastic press portion having a press finger protruding. When the connector end cover is mounted to the connector housing, the press finger of the elastic press portion faces an unlocking portion of an elastic catch on the connector housing, so that the elastic catch can be moved from a locked position engaged with a mating housing of a mating connector to an unlocked position disengaged from the mating housing by pressing the elastic press portion.
[0038] According to another general inventive concept of the present application, a connector housing assembly is provided. The connector housing assembly includes: a connector housing having a port at one end thereof and an elastic catch formed on a peripheral wall thereof; and the aforementioned connector end cover being fitted to one end of the connector housing. The elastic catch has an unlocking portion at one end of the connector housing, the press finger of the elastic press portion facing the unlocking portion, so that the elastic catch can be moved from a locked position engaged with a mating housing of a mating connector to an unlocked position disengaged from the mating housing by pressing the elastic press portion.
[0039] According to another general inventive concept of the present application, a connector is provided. The connector includes: the aforementioned connector housing assembly; and a terminal being inserted into the connector housing.
[0040] Figure 1 A perspective view schematically showing a connector housing assembly according to an exemplary embodiment of the present application; Figure 2 An exploded view schematically showing a connector housing assembly according to an exemplary embodiment of the present application; Figure 3 A perspective view schematically showing a connector end cover 1 according to an exemplary embodiment of the present application, in which a cantilever portion 11 of an elastic press portion 10 is in an initial state of flat extension; Figure 4 A perspective view schematically showing a connector end cover 1 according to an exemplary embodiment of the present application, in which a cantilever portion 11 of an elastic press portion 10 is in a bent mounting state; Figure 5 A sectional view schematically showing a connector end cover 1 according to an exemplary embodiment of the present application; Figure 6A cross-sectional view of a connector housing assembly according to an exemplary embodiment of the present application is shown.
[0041] As shown in Figures 1 to 6 In an exemplary embodiment of the present application, a connector end cover 1 is disclosed. The connector end cover 1 is used to be mounted to a port of a connector housing 2. An elastic pressing portion 10 is formed on the connector end cover 1, and the elastic pressing portion 10 has a pressing finger 12 with a protrusion 22. When the connector end cover 1 is mounted to the connector housing 2, the pressing finger 12 of the elastic pressing portion 10 faces an unlocking portion 23 of an elastic catch 20 on the connector housing 2, so that the elastic catch 20 can be moved from a locked position engaged with a mating housing (not shown) of a mating connector (not shown) to an unlocked position disengaged from the mating housing by pressing the elastic pressing portion 10.
[0042] As shown in Figures 1 to 6 In the illustrated embodiment, the connector end cover 1 includes a peripheral wall 18 and an end wall 19. The peripheral wall 18 is adapted to be fitted to one end of the connector housing 2. The end wall 19 is connected to the peripheral wall 18 and used to cover the port of the connector housing 2. The elastic pressing portion 10 further has a cantilever portion 11, a root of which is connected to one side of the end wall 19 and bent at a predetermined angle relative to the end wall 19. The pressing finger 12 is formed on a distal end of the cantilever portion 11, and a bushing 102 is formed on the peripheral wall 18, through which the pressing finger 12 extends into the connector end cover 1.
[0043] As shown in Figures 1 to 6 In the illustrated embodiment, the cantilever portion 11 includes a vertical arm 112 and a bent arm 111. The vertical arm 112 extends straight along an axial direction of the connector end cover 1. The bent arm 111 is connected between one end of the vertical arm 112 and one side of the end wall 19. The pressing finger 12 is formed on the other end of the vertical arm 112 and perpendicular to the vertical arm 112.
[0044] As shown in Figures 1 to 6 In the illustrated embodiment, the bent arm 111 is in a U shape.
[0045] As shown in Figures 1 to 6 In the illustrated embodiment, a flange 12a is formed on the distal end of the pressing finger 12, which is adapted to abut against an edge portion of an inner side opening of the bushing 102 to keep the pressing finger 12 in the bushing 102 and keep the cantilever portion 11 in a bent mounting state.
[0046] As shown in Figures 1 to 6 In the illustrated embodiment, the thickness of the cantilever portion 11 is less than the thickness of the peripheral wall 18 and the end wall 19. When the pressing finger 12 is disengaged from the bushing 102, the cantilever portion 11 can be reset to an initial state of extending straight upward from the end wall 19 under the action of its own elasticity.
[0047] like Figures 1 to 6 As shown, in the illustrated embodiment, the cross-sections of the jack 102 and the pressing finger 12 are circular, and the diameter of the pressing finger 12 is smaller than the diameter of the jack 102.
[0048] Figure 7 An exploded view of a connector housing assembly according to another exemplary embodiment of the present invention is shown; Figure 8 This shows a cross-sectional view of a connector housing assembly according to another exemplary embodiment of the present invention.
[0049] like Figure 7 and Figure 8 As shown, in the illustrated embodiment, the bent arm 111 is an arc shape bent at 90 degrees, making the cantilever portion 11 L-shaped.
[0050] like Figure 7 and Figure 8 As shown, in the illustrated embodiment, the thickness of the cantilever portion 11 is less than the thickness of the peripheral wall 18 and the end wall 19, and the initial state of the cantilever portion 11 is L-shaped.
[0051] like Figure 7 and Figure 8 As shown in the illustrated embodiment, when the cantilever 11 is in the initial state, the pressing finger 12 is located in the socket 102 and extends into the connector end cover 1.
[0052] like Figure 7 and Figure 8 As shown, in the illustrated embodiment, the cross-sections of the jack 102 and the pressing finger 12 are polygonal (e.g., square, rectangular, or regular hexagonal), and the size of the pressing finger 12 is smaller than the size of the jack 102.
[0053] like Figures 1 to 8 As shown, in the illustrated embodiment, a snap-fit structure (not shown, for example, a slot or protrusion) is formed on the peripheral wall 18 of the connector end cover 1. This snap-fit structure is adapted to engage with a mating snap-fit structure on the connector housing 2 to lock the connector end cover 1 onto the connector housing 2.
[0054] like Figures 1 to 8 As shown in the illustrated embodiment, a cable hole 101 for leading out a cable (not shown) is formed on the end wall 19 of the connector end cover 1, so that the cable of the connector can be led out from the connector housing 2 through the cable hole 101.
[0055] like Figures 1 to 8As shown, in another exemplary embodiment of this utility model, a connector housing assembly is also disclosed. The connector housing assembly includes a connector end cap 1 and a connector housing 2. The connector housing 2 has a port at one end and a resilient buckle 20 formed on its peripheral wall. The connector end cap 1 is fitted onto one end of the connector housing 2. The resilient buckle 20 has an unlocking portion 23 at one end of the connector housing 2, and a pressing finger 12 of the resilient pressing portion 10 faces the unlocking portion 23, thereby enabling the resilient buckle 20 to move from a locked position engaged with the mating housing of the mating connector to an unlocked position disengaged from the mating housing by pressing the resilient pressing portion 10.
[0056] like Figures 1 to 8 As shown in the illustrated embodiment, a mating snap-fit structure (not shown) is formed on the peripheral wall of one end of the connector housing 2. This mating snap-fit structure engages with a snap-fit structure on the connector end cover 1 to lock the connector end cover 1 to one end of the connector housing 2.
[0057] like Figures 1 to 8 As shown in the illustrated embodiment, the elastic buckle 20 includes an elastic arm 21, the root of which is connected to the peripheral wall 18 at the other end of the connector housing 2, and the unlocking part 23 is connected to the end of the elastic arm 21. A protrusion 22 is formed on the elastic arm 21, which is used to engage with a slot (not shown) on the mating housing to lock the connector housing 2 and the mating housing together.
[0058] like Figures 1 to 8 As shown in the illustrated embodiment, when the elastic buckle 20 is in the locked position, the protrusion 22 on the elastic buckle 20 engages with the slot on the mating housing. When the elastic buckle 20 is in the unlocked position, the protrusion 22 on the elastic buckle 20 disengages from the slot on the mating housing.
[0059] like Figures 1 to 8 As shown in the illustrated embodiment, a terminal socket 201 is formed in the connector housing 2, the terminal socket 201 being used to insert the connector terminals.
[0060] like Figures 1 to 8 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. The connector includes the aforementioned connector housing assembly and terminals (not shown). The terminals are inserted into the connector housing 2.
[0061] like Figures 1 to 8 As shown, in the illustrated embodiment, the connector also includes a cable (not shown) that extends into one end of the connector housing 2 and is electrically connected to a terminal. The cable exits from one end of the connector housing 2 via a cable hole 101 on the connector end cover 1.
[0062] like Figures 1 to 8As shown, in the illustrated embodiment, the connector further comprises an elastic seal 3 arranged in a port at one end of the connector housing 2 and formed with a through hole allowing the cable to pass through. The elastic seal 3 is squeezed between the cable and the inner wall of the connector housing 2 to achieve sealing therebetween.
[0063] Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can make improvements, and the structures described in various embodiments can be freely combined without structural or principle conflicts, and these changes shall fall within the protection scope of the utility model.
[0064] Although the utility model has been described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the utility model, and cannot be understood as a limitation of the utility model.
[0065] Although some embodiments of the general concept of the utility model have been shown and described, those skilled in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the utility model, and the scope of the utility model is limited by the claims and their equivalents.
[0066] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "one" does not exclude a plurality. In addition, any reference signs in the claims should not be understood as limiting the scope of the utility model.
Claims
1. A connector end cover for mounting to a port of a connector housing (2), characterized by: a resilient presser (10) formed on the connector end cover (1), the resilient presser (10) having a presser finger (12) with a protrusion (22); when the connector end cover (1) is mounted to the connector housing (2), the presser finger (12) of the resilient presser (10) faces an unlocking portion (23) of a resilient catch (20) on the connector housing (2), so that the resilient catch (20) can be moved from a locked position engaged with a mating housing of a mating connector to an unlocked position disengaged from the mating housing by pressing the resilient presser (10).
2. The connector end cap of claim 1, wherein, comprising: a peripheral wall (18) adapted to be fitted to one end of the connector housing (2); and an end wall (19) connected to the peripheral wall (18) for capping the port of the connector housing (2), the resilient presser (10) further has a cantilever portion (11) with a root connected to one side of the end wall (19) and bent at a predetermined angle relative to the end wall (19), the presser finger (12) is formed on a tip of the cantilever portion (11), and a receptacle (102) is formed on the peripheral wall (18), the presser finger (12) extending into the connector end cover (1) via the receptacle (102).
3. The connector end cover according to claim 2, characterized in that: the cantilever portion (11) comprises: a vertical arm (112) extending straight along an axial direction of the connector end cover (1); and a bent arm (111) connected between one end of the vertical arm (112) and one side of the end wall (19), the presser finger (12) is formed on the other end of the vertical arm (112) and perpendicular to the vertical arm (112). the bent arm (111) is in a U shape.
4. The connector end cap of claim 3, wherein:
5. The connector end cover according to claim 4, characterized in that: a flange (12a) is formed on a tip of the presser finger (12), the flange (12a) is adapted to abut against an edge portion of an inner side opening of the receptacle (102) to retain the presser finger (12) in the receptacle (102) and the cantilever portion (11) in a bent mounting state.
6. The connector end cover according to claim 5, characterized in that: a thickness of the cantilever portion (11) is less than a thickness of the peripheral wall (18) and the end wall (19); and when the presser finger (12) is disengaged from the receptacle (102), the cantilever portion (11) can be reset to an initial state of extending straight upward from the end wall (19) under an elastic force of itself.
7. The connector end cover according to claim 4, characterized in that: cross sections of the receptacle (102) and the presser finger (12) are circular, and a diameter of the presser finger (12) is less than a diameter of the receptacle (102).
8. The connector end cover according to claim 3, characterized in that: The bent arm (111) is bent by 90 degrees, so that the cantilever part (11) is L-shaped.
9. The connector end cover according to claim 7, characterized in that: The thickness of the cantilever part (11) is smaller than the thickness of the peripheral wall (18) and the end wall (19), and the initial state of the cantilever part (11) is L-shaped.
10. The connector end cover according to claim 9, characterized in that: When the cantilever part (11) is in the initial state, the pressing finger (12) is located in the insertion hole (102) and extends into the connector end cover (1).
11. The connector end cover according to claim 8, characterized in that: The cross section of the insertion hole (102) and the pressing finger (12) is polygonal, and the size of the pressing finger (12) is smaller than the size of the insertion hole (102).
12. The connector end cover according to claim 1, characterized in that: A buckle structure is formed on the peripheral wall (18) of the connector end cover (1), which is adapted to engage with a counter-buckle structure on the connector housing (2) to lock the connector end cover to the connector housing (2).
13. The connector end cover according to claim 1, characterized in that: A cable hole (101) for leading out a cable is formed on the end wall (19) of the connector end cover (1), so that the cable of the connector can be led out from the connector housing (2) via the cable hole (101).
14. A connector housing assembly characterized by, Including: A connector housing (2) having a port at one end and a resilient buckle (20) formed on the peripheral wall thereof; And The connector end cover (1) according to any one of claims 1-13 is sleeved on one end of the connector housing (2), The resilient buckle (20) has an unlocking portion (23) at one end of the connector housing (2), and the pressing finger (12) of the resilient pressing portion (10) faces the unlocking portion (23), so that the resilient buckle (20) can be moved from a locked position engaged with a counter-housing of a counter-connector to an unlocked position disengaged from the counter-housing by pressing the resilient pressing portion (10).
15. The connector housing assembly according to claim 14, characterized in that: A counter-buckle structure is formed on the peripheral wall of one end of the connector housing (2), which engages with the buckle structure on the connector end cover (1) to lock the connector end cover (1) to one end of the connector housing (2).
16. The connector housing assembly according to claim 14, characterized in that: The resilient buckle (20) includes a resilient arm (21), the root of the resilient arm (21) is connected to the peripheral wall (18) of the other end of the connector housing (2), and the unlocking portion (23) is connected to the tip of the resilient arm (21); A protrusion (22) is formed on the resilient arm (21), which is used to engage with a clamping groove on the counter-housing to lock the connector housing (2) and the counter-housing together.
17. The connector housing assembly according to claim 16, characterized by: a protrusion (22) on the elastic buckle (20) engages with a clamping groove on the counter housing when the elastic buckle (20) is in the locked position; the protrusion (22) on the elastic buckle (20) disengages from the clamping groove on the counter housing when the elastic buckle (20) is in the unlocked position.
18. The connector housing assembly according to claim 14, characterized by: a terminal insertion hole (201) is formed in the connector housing (2), the terminal insertion hole (201) is used for inserting the terminal of the connector.
19. A connector characterized by comprising: comprising: the connector housing assembly according to any one of claims 14-18; and a terminal inserted into the connector housing (2).
20. The connector of claim 19, wherein, further comprising: a cable inserted into one end of the connector housing (2) and electrically connected to the terminal, the cable is led out from one end of the connector housing (2) through the cable hole (101) on the connector end cover (1).
21. The connector of claim 20, wherein, further comprising: an elastic seal (3) arranged in the port of one end of the connector housing (2) and formed with a via hole allowing the cable to pass through, the elastic seal (3) is pressed between the cable and the inner wall of the connector housing (2) to achieve sealing between the two.