Power connector

Abstract

The application discloses a power connector, which comprises a male connector and a female connector. The male connector and the female connector each comprise a shell, an inner conductor, a cable, a cable pressing shell and a sealing sleeve. The inner conductor is arranged in the shell, the cable is connected with the inner conductor, the cable pressing shell is buckled on the shell and the cable is arranged in the cable pressing shell to fix the cable. The sealing sleeve is arranged at the buckling position of the cable pressing shell and the shell. The sealing sleeve comprises a sleeve part and a boss part. The boss part extends radially outward from one end of the sleeve part. The sleeve part is arranged outside the cable, and the boss part is arranged between the shell and the cable pressing shell to form a seal. The female connector further comprises a sealing ring, which is arranged between the buckling contact surfaces of the female connector and the male connector to seal the gap therebetween. The power connector adopts the sealing ring to seal the end surfaces between the male connector and the female connector, and adopts the sealing sleeve to seal between the respective shells and the cable pressing shells of the male connector and the female connector, so that the sealing effect is good and the reliability is high.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to a power connector. Background Technology

[0002] With the rise of markets such as new energy vehicles and robotics, the use of low-voltage, high-current connectors in mainframes has increased dramatically. Due to the different applications of power connectors, waterproofing is necessary when they are used in robot joints where sealing is not possible. Currently, waterproofing of power connectors generally uses adhesive heat shrink tubing. However, adhesive heat shrink tubing is prone to cracking when cables are pulled or subjected to repeated bending. Utility Model Content

[0003] The purpose of this application is to provide a power connector to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A power connector includes a male connector and a female connector, wherein both the male connector and the female connector include a housing, an inner conductor, a cable, a wire clamping shell, and a sealing sleeve.

[0006] The inner conductor is disposed in the housing, the cable is connected to the inner conductor, the wire clamping shell is fastened to the housing and the cable passes through the wire clamping shell to fix the cable; the sealing sleeve is disposed at the fastening point between the wire clamping shell and the housing;

[0007] The sealing sleeve includes a sleeve portion and a boss portion. The boss portion extends radially outward from one end of the sleeve portion. The sleeve portion is fitted over the cable, and the boss portion is sandwiched between the housing and the wire clamping housing to form a seal.

[0008] The female connector also includes a sealing ring, which is disposed between the mating contact surfaces of the female connector and the male connector to seal the gap between them.

[0009] In some embodiments, the wire clamping shell is provided with a through hole for the cable to pass through, and the sleeve portion of the sealing sleeve extends into the through hole so that the sleeve portion is fitted over the cable. The boss portion protrudes from the end face of the wire clamping shell so that the shell can squeeze the boss portion to achieve a seal after the shell and the wire clamping shell are fastened together.

[0010] In some embodiments, the housing of the female connector is provided with a mating cavity, the contact end of the inner conductor of the female connector is exposed in the mating cavity, the sealing ring is disposed at the bottom of the mating cavity and surrounds the inner conductor, and the male connector is inserted into the mating cavity and abuts against the sealing ring to form a seal.

[0011] In some embodiments, the male connector has an annular boss on the end face of the housing, the annular boss being correspondingly disposed with the sealing ring and abutting against the sealing ring.

[0012] In some embodiments, the housing is provided with a mounting hole for mounting the inner conductor, the inner conductor passes through the mounting hole, and the inner wall of the mounting hole is provided with a ring of protrusions that protrude toward the inner conductor to lock the inner conductor in place.

[0013] In some embodiments, one of the housing and the wire clamping housing is provided with a locking arm, and the end of the locking arm is provided with a protrusion, while the other sidewall is provided with a locking hole; one of the housing of the male connector and the housing of the female connector is provided with the locking arm, and the end of the locking arm is provided with a protrusion, while the other sidewall is provided with the locking hole; the protrusion is engaged with the locking hole to achieve a locking connection.

[0014] In some embodiments, the arm includes a bent portion and an extended portion, the bent portion extending outward along the thickness direction of the power connector and backward along the length direction of the power connector, the extended portion extending backward along the length direction of the power connector; the protrusion is provided on the extended portion.

[0015] In some embodiments, one of the housing and the pressure shell is provided with a positioning post extending toward the other, and the other is provided with a positioning hole that mates with the positioning post.

[0016] In some embodiments, the sealing sleeve is a silicone sleeve.

[0017] The advantages of this application are:

[0018] The power connector of this application uses a sealing ring for end-face sealing between the male and female connector ends. A sealing sleeve is used between the respective housings of the male and female ends and the wire clamping shell for sealing. The sealing sleeve includes a sleeve portion and a boss portion. The boss portion effectively forms an end-face seal between the housing and the wire clamping shell, while the sleeve portion, fitted over the cable, seals the gap between the cable and the wire clamping shell. The power connector of this application forms a superior sealing structure through the sealing ring between the male and female ends and the sealing sleeves on each end, resulting in excellent sealing performance. It is less prone to cracking or failure under cable pulling or bending, and thus offers high reliability. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the power connector structure in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of the power connector in this application embodiment where the male connector and the female connector are separated;

[0022] Figure 3 for Figure 2 A structural schematic diagram from another perspective of the structure shown;

[0023] Figure 4 This is an exploded view of the power connector in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the power connector in an embodiment of this application;

[0025] Figure 6 for Figure 5 The diagram shows a structure in which the male connector and female connector are separated.

[0026] Figure 7 This is a schematic diagram of the longitudinal cross-sectional structure of the power connector in the embodiments of this application;

[0027] Figure 8 for Figure 7 The diagram shows a structure in which the male connector and female connector are separated.

[0028] Figure 9 This is an exploded view of the female connector in the embodiments of this application;

[0029] Figure 10 This is a schematic diagram of the cross-sectional structure of the female connector in an embodiment of this application;

[0030] Figure 11 This is an exploded view of the male connector in the embodiments of this application;

[0031] Figure 12 This is a schematic diagram of the cross-sectional structure of the male connector in an embodiment of this application;

[0032] Figure 13 This is a schematic diagram of the structure of the inner conductor at the female end in an embodiment of this application;

[0033] Figure 14 This is a schematic diagram of the structure of the inner conductor of the male terminal in an embodiment of this application.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 10 - Power connector;

[0036] 100 - Male connector; 110 - Male housing; 111 - Boss; 113 - Socket; 120 - Male inner conductor; 130 - Male cable; 140 - Male wire clamping shell; 150 - Male sealing sleeve;

[0037] 112, 212 - Mounting holes;

[0038] 1121, 2121 - Carousel Convex;

[0039] 114 - Positioning hole;

[0040] 115, 213 - First positioning slot;

[0041] 151, 251 - Sleeve section;

[0042] 152, 252 - Bossed section;

[0043] 141, 241 - Through holes;

[0044] 142, 242 - Positioning pins;

[0045] 101-Clamping arm; 1011-Protrusion; 101a-Bent section; 101b-Extension section; 101c-Root; 102-Clamping hole;

[0046] 200 - Female connector; 210 - Female housing; 211 - Insertion cavity; 2111 - Second positioning groove; 220 - Female inner conductor; 230 - Female cable; 240 - Female wire clamping shell; 250 - Female sealing sleeve;

[0047] 300 - Sealing ring. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] This application provides a power connector. For example... Figure 1 and Figure 2 As shown, in this embodiment, the power connector 10 includes a male connector 100 and a female connector 200. After the male connector 100 is plugged into the female connector 200, as shown... Figure 1As shown, electrical connection is achieved after plugging in.

[0050] Both the male connector 100 and the female connector 200 include a housing, an inner conductor, a cable, a crimping shell, and a sealing sleeve. Specifically, as shown... Figures 2 to 4 As shown, the male connector 100 includes a male housing 110, a male inner conductor 120, a male cable 130, a male crimp housing 140, and a male sealing sleeve 150. The female connector 200 includes a female housing 210, a female inner conductor 220, a female cable 230, a female crimp housing 240, and a female sealing sleeve 250.

[0051] like Figure 6 As shown, the inner conductors (120, 220) are disposed in the housings (110, 210). Specifically, it can be understood that the male inner conductor 120 of the male connector 100 is disposed in the male housing 110, and the female inner conductor 220 of the female connector 200 is disposed in the female housing 210.

[0052] like Figure 6 As shown, cables (130, 230) are connected to inner conductors (120, 220). It can be understood that the male cable 130 of the male connector 100 is connected to the male inner conductor 120, and the female cable 230 of the female connector 200 is connected to the female inner conductor 220. The connection between cables (130, 230) and inner conductors (120, 220) can be soldered or crimped.

[0053] like Figure 6 As shown, the wire clamping shells (140, 240) are fastened to the housings (110, 210), and the cables (130, 230) pass through the wire clamping shells (140, 240). It can be understood that the male wire clamping shell 140 is fastened to the male housing 110, and the male cable 130 passes through the male wire clamping shell 140; the female wire clamping shell 240 is fastened to the female housing 210, and the female cable 230 passes through the female wire clamping shell 240. The wire clamping shells (140, 240) are fastened to the housings (110, 210) to secure the cables (130, 230) to the housings (110, 210). Simply thread the cables (130, 230) through the wire clamps (140, 240) and fasten the wire clamps (140, 240) onto the housing (110, 210) to secure the cables (130, 230).

[0054] like Figure 6 As shown, the sealing sleeves (150, 250) are located at the engagement point between the wire clamping shell (140, 240) and the housing (110, 210). For example... Figure 6As shown, the sealing sleeves (150, 250) include a sleeve portion (151, 251) and a boss portion (152, 252). The sleeve portion (151, 251) is cylindrical, and the boss portion (152, 252) extends radially outward from one end of the sleeve portion (151, 251). The sleeve portion (151, 251) is fitted over the cable (130, 230). The boss portion (152, 252) is sandwiched between the housing (110, 210) and the wire clamping housing (140, 240) so that the sealing sleeves (150, 250) can seal the gap between the housing (110, 210) and the wire clamping housing (140, 240), as well as the gap between the cable (130, 230) and the wire clamping housing (140, 240), thus achieving a good sealing effect. It is understood that the male end sealing sleeve 150 is located at the engagement point between the male end crimping shell 140 and the male end housing 110. The sleeve portion 151 of the male end sealing sleeve 150 is fitted over the male end cable 130, and the boss portion 152 of the male end sealing sleeve 150 is sandwiched between the male end housing 110 and the male end crimping shell 140. The female end sealing sleeve 250 is located at the engagement point between the female end crimping shell 240 and the female end housing 210. The sleeve portion 251 of the female end sealing sleeve 250 is fitted over the female end cable 230, and the boss portion 252 of the female end sealing sleeve 250 is sandwiched between the female end housing 210 and the female end crimping shell 240.

[0055] In this embodiment, the sealing sleeves (150, 250) are made of silicone. Of course, in other optional embodiments, the sealing sleeves (150, 250) can also be made of other materials that can provide a sealing effect.

[0056] like Figure 6 As shown in the embodiment of this application, the female connector 200 further includes a sealing ring 300. For example... Figure 5 As shown, the sealing ring 300 is disposed between the mating contact surfaces of the female connector 200 and the male connector 100 to form an end face seal between the two and seal the gap between them.

[0057] The power connector 10 of this application uses a sealing ring 300 for end-face sealing between the male connector 100 and the female connector 200, and also uses sealing sleeves (150, 250) for sealing between the respective housings (110, 210) and crimp housings (140, 240) of the male and female ends. The sealing sleeves (150, 250) include a sleeve portion (151, 251) and a boss portion (152, 252). The boss portion (152, 252) can effectively form an end-face seal between the housing (110, 210) and the crimp housing (140, 240). The sleeve portion (151, 251) is fitted over the cable (130, 230) and can seal the gap between the cable (130, 230) and the crimp housing (140, 240). The entire power connector 10 forms a good sealing structure through the sealing ring 300 between the male and female ends and the sealing sleeves (150, 250) of the male and female ends respectively. It has a good sealing effect and is not easy to crack or fail when the cable (130, 230) is pulled or bent, resulting in high reliability.

[0058] like Figure 4 As shown, the wire clamping housings (140, 240) are provided with through holes (141, 241) for cables (130, 230) to pass through. Specifically, the male wire clamping housing 140 is provided with a through hole 141 for the male cable 130 to pass through, and the female wire clamping housing 240 is provided with a through hole 241 for the female cable 230 to pass through. (Combined with...) Figure 4 and Figure 5 As shown, the sleeve portion (151, 251) of the sealing sleeve (150, 250) extends into the through hole (141, 241) on the wire clamping housing (140, 240), while the boss portion (152, 252) of the sealing sleeve (150, 250) is engaged with the outer end of the through hole (141, 241), thus allowing the sleeve portion (151, 251) to be fitted over the cable (130, 230). The bosses (152, 252) protrude from the end face of the wire clamping shell (140, 240), so that the bosses (152, 252) are sandwiched between the shell (110, 210) and the wire clamping shell (140, 240). After the shell (110, 210) and the wire clamping shell (140, 240) are engaged, the shell (110, 210) squeezes the bosses (152, 252) to form an end face seal.

[0059] like Figure 9 and Figure 10 As shown, the housing 210 of the female connector 200 has a mating cavity 211 for accommodating the mating connector. Figure 10 As shown, the contact end 220a of the inner conductor 220 of the female connector 200 is exposed in the insertion cavity 211, thereby allowing the male connector 100 inserted into the insertion cavity 211 to contact the female inner conductor 220. Figure 10As shown, the sealing ring 300 is disposed at the bottom of the insertion cavity 211 and surrounds the inner conductor 220 of the female end. After the male connector 100 is inserted into the insertion cavity 211, the end face of the housing 110 of the male connector 100 abuts against the sealing ring 300 to form an end face seal.

[0060] Furthermore, such as Figure 3 As shown, an annular boss 111 is provided on the end face of the housing 110 of the male connector 100. (As indicated...) Figure 6 As shown, the boss 111 protrudes towards the bottom of the insertion cavity 211, and the annular boss 111 corresponds to the position of the sealing ring 300. Figure 5 As shown, the boss 111 abuts against the sealing ring 300, thereby forming a seal.

[0061] like Figure 5 and Figure 6 As shown, the housing (110, 210) is provided with mounting holes (112, 212) for mounting the inner conductors (120, 220), and the inner conductors (120, 220) are inserted into the mounting holes (112, 212). Specifically, as... Figure 3 As shown, the female connector 200 has a female mounting hole 212 on its female housing 210, and the female inner conductor 220 is disposed in the female mounting hole 212. Figure 2 As shown, the male connector 100 has a male mounting hole 112 on its male housing 110, and the male inner conductor 120 is disposed in the male mounting hole 112. Figure 5 As shown, the inner wall of the mounting holes (112, 212) is provided with a ring of retaining protrusions (1121, 2121), which protrude towards the inner conductors (120, 220) to secure them. Figure 6 As shown, the edges of the protrusions (1121, 2121) are rounded arcs, which guide the inner conductors (120, 220) and prevent them from being scratched. It can be understood that the outer wall of the inner conductors (120, 220) is also provided with grooves to cooperate with the protrusions (1121, 2121).

[0062] like Figure 3 and Figure 6 As shown, the male connector 100 has a mating hole 113 on its housing 110. Figure 6 As shown, the insertion hole 113 communicates with the male mounting hole 112. The contact end 120a of the inner conductor 120 of the male connector 100 is exposed in the insertion hole 113. When the male connector 100 is inserted into the female connector 200, as shown... Figure 5As shown, the inner conductor 220 of the female connector 200 is inserted into the insertion hole 113 on the housing 110 of the male connector 100, thereby making contact between the female inner conductor 220 and the male inner conductor 120.

[0063] In the embodiments of this application, such as Figure 4 As shown, one of the housings (110, 210) and the wire clamping housings (140, 240) is provided with a clamping arm 101, and the end of the clamping arm 101 is provided with a protrusion 1011. The other housing is provided with a clamping hole 102 on its side wall. Figure 1 As shown, the protrusion 1011 engages with the locking hole 102 to achieve the engagement of the wire clamping shell (140, 240) and the housing (110, 210). And as... Figure 2 As shown, of the male connector 100's housing 110 and the female connector 200's housing 210, one has a retaining arm 101, and the end of the retaining arm 101 has a protrusion 1011; the other has a retaining hole 102 on its side wall. Figure 1 As shown, the protrusion 1011 is inserted into the slot 102 to achieve the engagement of the male connector 100 and the female connector 200.

[0064] In this embodiment of the application, as shown in Figure 4, a locking arm 101 is provided on the male end crimping housing 140, and a locking hole 102 is provided on the male end housing 110. Figure 1 As shown, this allows the male end crimping housing 140 to snap onto the male end housing 110. As shown in Figure 4, the female end crimping housing 240 is provided with a locking arm 101, and the female end housing 210 is provided with a locking hole 102, as... Figure 1 As shown, this allows the female end clamping housing 240 to snap onto the female end housing 210. (See diagram) Figure 2 As shown, the female end housing 210 is provided with a locking hole 102, and the male end housing 110 is provided with a locking arm 101, as follows: Figure 1 As shown, this allows the male end housing 110 to snap onto the female end housing 210.

[0065] like Figure 7 As shown, the arm 101 includes a bent portion 101a and an extended portion 101b. The bent portion 101a extends outward along the thickness direction of the power connector 10 and backward along the length direction of the power connector 10. Here, "backward" refers to the insertion direction of the male connector 100 and the female connector 200, respectively. For example... Figure 8 In the diagram, the backward extension of the bent portion 101a of the clamp arm 101 on the female connector 200 refers to the extension along... Figure 8 The Y direction in the text refers to the direction away from the male connector 100. The backward extension of the bent portion 101a of the retaining arm 101 on the male connector 100 refers to... Figure 8The opposite direction of the Y-direction, that is, the direction away from the female connector 200. A bend 101a is provided to form a backward bend in the retaining arm 101. Simultaneously, the bend 101a also provides elasticity to the retaining arm 101. An extension 101b extends backward from the end of the bend 101a along the length of the power connector 10. A protrusion 1011 is provided on the extension 101b.

[0066] like Figure 7 As shown, the retaining arm 101 on the crimp housing (male crimp housing 140, female crimp housing 240) also includes a root 101c, which extends forward along the length of the power connector 10. Similar to the "backward" mentioned earlier, "forward" here also refers to the respective insertion directions of the male connector 100 and the female connector 200. For example... Figure 7 As shown, the clamping arm 101 on the wire clamping shell (male wire clamping shell 140, female wire clamping shell 240) also includes a root 101c, a bent portion 101a, and an extension portion 101b, making the entire clamping arm 101 U-shaped. Since the clamping arm 101 on the wire clamping shell (140, 240) is located at the front end of the wire clamping shell (140, 240), the root 101 of the clamping arm 101 needs to extend forward a certain distance. However, the clamping arm 101 on the male end shell 110 is located in the middle position of the male end shell 110, so the clamping arm 101 on the male end shell 110 does not need to have a forward-extending root 101c.

[0067] Combination Figure 9 and Figure 11 As shown, one of the housings (110, 210) and the pressure shells (140, 240) has a positioning post (142, 242) extending towards the other, and the other has a positioning hole that mates with the positioning post (142, 242). The positioning post (142, 242) is inserted into the positioning hole to achieve positioning. Specifically, as shown... Figure 11 As shown, a positioning post 142 is provided on the male end crimping housing 140, and a positioning hole 114 is provided on the male end housing 110. Figure 9 As shown, a positioning post 242 is provided on the female end pressure housing 240, and a positioning hole (not shown in the figure) is provided on the female end housing 210.

[0068] like Figures 10 to 12 As shown, the end faces of the housings (110, 210) are also provided with first positioning grooves (115, 213) for positioning the sealing sleeves (150, 250). The first positioning grooves (115, 213) communicate with the mounting holes (112, 212). It is understood that, as... Figure 10 As shown, a first positioning groove 213 is provided on the end face of the female end housing 210 for installing and positioning the female end sealing sleeve 250. Figure 12As shown, a first positioning groove 115 is provided on the end face of the male end housing 110 for installing and positioning the male end sealing sleeve 150.

[0069] like Figure 10 As shown, a second positioning groove 2111 is also provided at the bottom of the insertion cavity 211 of the female end housing 210. The second positioning groove 2111 is arranged around the inner conductor 220 of the female end, and the second positioning groove 2111 is used to install the sealing ring 300.

[0070] In the embodiments of this application, such as Figure 13 As shown, the inner conductors (220a, 220b, 220c) of the female terminals are integrally stretched from copper tubing or copper plate. Figure 14 As shown, the male inner conductors (120a, 120b, 120c) are machined by wrapping a copper plate around the inner conductor. Compared with the prior art, which uses a copper rod for turning the inner conductor, this application can reduce the manufacturing cost of the inner conductor.

[0071] As mentioned earlier, the cables (130, 230) and inner conductors (120, 220) can be soldered or crimped together. Figure 13 Figures and Figure 14 As shown, both the male inner conductor 120 and the female inner conductor 220 are designed with three methods: riveting, soldering, and ultrasonic welding. Figure 13 The inner conductor 220a of the middle female end is a female end inner conductor structure of the riveting and crimping scheme, the inner conductor 220b of the middle female end is a female end inner conductor structure of the ultrasonic welding scheme, and the inner conductor 220c of the middle female end inner conductor structure of the tin-welded scheme. Figure 14 The male inner conductor 120a is a crimped male inner conductor structure, the male inner conductor 120b is an ultrasonically welded male inner conductor structure, and the male inner conductor 120c is a tin-welded male inner conductor structure. Designing multiple structures allows for more flexible selection of processing methods based on equipment, resulting in further cost reduction.

[0072] The assembly steps of the power connector 10 in this embodiment are as follows:

[0073] Insert the female inner conductor 220 into the female housing 210, crimp or weld the female cable 230 to the female inner conductor 220, insert the female sealing sleeve 250 into the positioning groove on the female housing 210, and fasten the female wire clamping shell 240 onto the female housing 210. Similarly, assemble the male connector 100.

[0074] Place the sealing ring 300 in the second positioning groove 2111 at the bottom of the insertion cavity 211 of the female end housing 210 (this step of installing the sealing ring 300 can also be placed before the step of installing the female end inner conductor 220 onto the female end housing 210), and insert the male end connector 100 into the female end connector 200.

[0075] The technical features in the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above merely illustrate the implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A power connector, characterized by, It includes a male connector and a female connector, both of which include a housing, an inner conductor, a cable, a wire clamping shell, and a sealing sleeve; The inner conductor is disposed in the housing, the cable is connected to the inner conductor, the wire clamping shell is fastened to the housing and the cable passes through the wire clamping shell to fix the cable; the sealing sleeve is disposed at the fastening point between the wire clamping shell and the housing; The sealing sleeve includes a sleeve portion and a boss portion. The boss portion extends radially outward from one end of the sleeve portion. The sleeve portion is fitted over the cable, and the boss portion is sandwiched between the housing and the wire clamping housing to form a seal. The female connector also includes a sealing ring, which is disposed between the mating contact surfaces of the female connector and the male connector to seal the gap between them.

2. The power connector of claim 1, wherein, The pressure shell has a through hole for the cable to pass through. The sleeve portion of the sealing sleeve extends into the through hole so that the sleeve portion is fitted over the cable. The boss portion protrudes from the end face of the pressure shell so that the shell can squeeze the boss portion to achieve a seal after the shell and the pressure shell are fastened together.

3. The power connector of claim 1, wherein, The female connector has a mating cavity on its housing. The contact end of the inner conductor of the female connector is exposed in the mating cavity. The sealing ring is located at the bottom of the mating cavity and surrounds the inner conductor. After the male connector is inserted into the mating cavity, it abuts against the sealing ring to form a seal.

4. The power connector of claim 3, wherein, The male connector has an annular boss on the end face of the housing, which corresponds to and abuts against the sealing ring.

5. The power connector of claim 1, wherein, The housing is provided with a mounting hole for installing the inner conductor. The inner conductor passes through the mounting hole, and the inner wall of the mounting hole is provided with a ring of protrusions that protrude toward the inner conductor to lock the inner conductor in place.

6. The power connector of claim 1, wherein, One of the housing and the wire clamping housing is provided with a clamping arm, and the end of the clamping arm is provided with a protrusion, while the other side wall is provided with a clamping hole; one of the housing of the male connector and the housing of the female connector is provided with the clamping arm, and the end of the clamping arm is provided with a protrusion, while the other side wall is provided with the clamping hole; the protrusion is engaged with the clamping hole to achieve a snap-fit ​​connection.

7. The power connector of claim 6, wherein The arm includes a bent portion and an extended portion. The bent portion extends outward along the thickness direction of the power connector and backward along the length direction of the power connector. The extended portion extends backward along the length direction of the power connector. The protrusion is provided on the extension portion.

8. The power connector of claim 1, wherein, One of the housing and the pressure shell is provided with a positioning post extending toward the other, and the other is provided with a positioning hole that mates with the positioning post.

9. The power connector according to claim 1, characterized in that, The sealing sleeve is a silicone sleeve.

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