CN216214466U - Inclined-insertion waterproof connector - Google Patents

Abstract

The utility model relates to an inclined-insertion waterproof connector, which comprises a plug and a socket; the plug comprises a plug body, a power jack, a waterproof sealing ring, a signal jack, a plug opposite-plugging panel, plug inner rubber coating and plug outer rubber coating; the socket comprises a socket body, an anti-plugging gasket, a power supply pin, a signal pin and a socket opposite-plugging panel; the plug comprises a plug body, a power supply jack, a plug body, a plug butt-inserting panel, a plug butt-inserting surface, a first positioning column and a second positioning column, wherein the butt-inserting surface of the plug body is convexly provided with a section block, the section block is convexly provided with a plurality of butt-inserting grooves with upward openings, the power supply jack and the signal jack penetrate through the plug body from the back surface of the plug and are respectively installed in the corresponding butt-inserting grooves, the butt-inserting surface of the plug butt-inserting panel is convexly provided with the first positioning column and the second positioning column, and the butt-inserting surface of the socket butt-inserting panel is concavely provided with the first positioning groove and the second positioning groove; when the plug and the socket are obliquely inserted in an opposite mode, the plug and the socket are aligned through guiding between the positioning column and the positioning groove, and therefore the plug and the socket are changed from oblique insertion to horizontal insertion. Meanwhile, the single-side water prevention and the opposite-insertion water prevention of the plug and the socket are realized in the mode of coating rubber and sealing rings.

Description

Inclined-insertion waterproof connector

Technical Field

The utility model relates to the field of connectors, in particular to an inclined-insertion waterproof connector.

Background

At present, most of the traditional high-current electric connectors are axially plugged and pulled, and main connectors adopt a female-end closed structure, so that the electric connectors cannot be obliquely inserted. Trades such as new energy automobile, electricity friction electricity list, industrial equipment, urban rail begin to promote vigorously and trade the electric structure, and quick replacement battery is the present trend of this trade, and traditional axial plug connector has retrained the structural space and the application convenience of battery design under this kind of demand.

In addition, similar electrical connectors capable of being inserted obliquely are available on the market, the structure is simple or the structure is too complex to bear current, the application is limited, the waterproof performance is low or waterproof is not available, the safety protection function is basically absent, and the risk that the application is frequently failed due to the design of a connector matching system is not considered.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the oblique-insertion waterproof connector solves the problems that an existing oblique-insertion connector does not have a safety protection function and is volatile in effect.

The technical solution of the utility model is as follows: the inclined-insertion waterproof connector is characterized by comprising a plug and a socket which are connected in an opposite insertion manner;

the plug comprises a plug body, a waterproof sealing ring sleeved on the opposite insertion surface of the plug body, a power supply jack and a signal jack which are arranged on the plug body, a plug opposite insertion panel arranged on the opposite insertion surface of the plug body, a plug inner rubber coating arranged on the back surface of the plug body and a plug outer rubber coating coated outside the plug inner rubber coating;

the socket comprises a socket body, a sealing gasket fixed on the back of the socket body, a power supply contact pin and a signal contact pin which are installed after penetrating through the socket body from the back of the socket, and a socket opposite-inserting panel arranged on the opposite-inserting surface of the socket body;

the plug comprises a plug body, a power supply plug and a signal plug, wherein a butt-inserting surface of the plug body is convexly provided with a profile block, a butt-inserting side of the profile block is convexly provided with a plurality of butt-inserting grooves with upward openings, the power supply plug and the signal plug penetrate through the plug body from the back of the plug and are respectively installed in the corresponding butt-inserting grooves, and the power supply plug pin and the signal plug pin are obliquely inserted into the corresponding power supply plug hole and the corresponding signal plug hole from the openings above the butt-inserting grooves;

the plug is characterized in that a first positioning column and a second positioning column are convexly arranged on the opposite insertion surface of the plug opposite insertion panel, the first positioning column and the second positioning column are respectively positioned on the opposite sides of the plug body, and the first positioning column is arranged on one side of an opening of the opposite insertion groove;

the socket is characterized in that a first positioning groove and a second positioning groove are correspondingly and concavely arranged on the opposite insertion surface of the opposite insertion panel of the socket, the side wall of the first positioning groove, which is positioned at one side close to the socket body, is a guide inclined surface, and a stop block is convexly arranged on the side wall, which is positioned at one side far away from the socket body.

Preferably, the method comprises the following steps: the plug comprises a plug body, a plug sealing element, a power supply jack, a signal jack and a plug opposite-plugging panel;

the plug comprises a plug body, a plug side of the plug body is provided with a convex block, a plurality of opposite insertion grooves with upward openings are arranged on the opposite insertion side of the convex block, the side wall of the opposite insertion end of the convex block is also provided with a limiting step in a convex mode, a foolproof key position groove is arranged between two adjacent pairs of insertion grooves, and the outer edges of the opposite insertion grooves are designed in an arc shape;

the plug sealing element is sleeved on the outer side of the section block and is installed on the opposite insertion surface of the plug body through a fixing element, the top of the plug sealing element is abutted against the limiting step, and a plurality of layers of waterproof sealing rings are distributed on the outer wall of the plug sealing element;

the plug opposite-insertion panel is fixed on the opposite-insertion surface of the plug body through a fixing element or integrally formed on the opposite-insertion surface of the plug body;

the power supply jack and the signal jack penetrate through the plug body from the back face and are respectively and correspondingly installed in the opposite inserting grooves.

Preferably, the method comprises the following steps: the power supply jack comprises an opposite insertion part and a connecting part which are integrally formed, the opposite insertion part extends downwards and then bends upwards to form a U-shaped structure, the side wall of the opposite insertion part is oppositely provided with an inward bending elastic contact force arm, and the elastic contact force arm comprises a contact arc surface and a supporting surface;

the connecting part is sleeved with a sealing element;

the signal jack is consistent with the power jack in structure.

Preferably, the method comprises the following steps: the plug also comprises a PCB board welded at the tail part of the signal jack.

Preferably, the method comprises the following steps: the plug is characterized in that a first positioning column, a second positioning column and a plurality of limiting columns are convexly arranged on the opposite insertion surface of the plug opposite insertion panel, the first positioning column and the second positioning column are respectively positioned on two sides of the plug main body, the first positioning column is positioned on the opposite side of the plug body, the first positioning column is arranged on one side of an opening of the opposite insertion groove, and the plurality of limiting columns are distributed around the plug body;

the cross sections of the first positioning column, the second positioning column and the plurality of limiting columns are arranged in a right triangle shape, slotted holes are arranged at intervals, the whole positioning column is in a comb shape, the opening direction of comb teeth of the first positioning column is opposite to that of comb teeth of the second positioning column, and the opening direction of comb teeth of the second positioning column is the same as that of the limiting columns.

Preferably, the method comprises the following steps: the edges of the plug opposite-insertion panels extend outwards respectively and then are horizontally bent by 90 degrees to form limiting arms;

after the plug is plugged into the socket, the limiting arm wraps the socket plugging panel and is used for limiting the displacement of the socket plugging panel relative to the socket plugging surface.

Preferably, the method comprises the following steps: the socket comprises a socket body, a sealing gasket, a power supply contact pin, a signal contact pin and a socket opposite-inserting panel;

a groove is concavely arranged on the opposite insertion surface of the socket body, anti-touch fingers and an insulating grid are symmetrically and convexly arranged in the groove, a mounting key is convexly arranged on the outer wall of the groove, and a convex shoulder is convexly arranged on the side wall of the insulating grid;

the power supply contact pin penetrates through the socket body from the back side and is installed in the anti-touch finger, the signal contact pin penetrates through the socket body from the back side and is fixed on the socket body, and the insulation grid is arranged between the power supply contact pin and the signal contact pin;

the sealing gasket is sleeved on the outer wall of the groove along the mounting key and is fixed on the back of the socket body through the fixing element;

the socket opposite-inserting panel is sleeved on the opposite-inserting side of the socket body along the mounting key and is fixed on the socket body through a fixing element;

the socket also includes a tail package body located at the back of the socket body.

Preferably, the method comprises the following steps: the power supply pin is a leaf spring terminal and comprises a guide part and a contact part which are integrally formed, a dovetail groove is formed at the top end of the guide part, two side walls of the guide part are designed to be inclined planes, and the section of the guide part is in an isosceles trapezoid shape;

the inner side of the anti-touch finger is provided with a dovetail step matched with the dovetail groove;

the power supply contact pin is inserted into the anti-touch finger under the guiding action of the inclined surface of the guiding part, and the dovetail groove is matched with the dovetail step to realize the fixation of the power supply contact pin.

Compared with the prior art, the utility model has the beneficial effects that:

the plug comprises a plug body, a power supply jack and a signal jack, wherein a molding block is arranged on the plug body, the molding block is convexly provided with a pair of inserting slots with upward openings, and the power supply jack and the signal jack are matched with the power supply jack and the signal jack which are designed in a U shape, so that the power supply jack and the signal jack of a socket can be obliquely inserted into the power supply jack and the signal jack of the plug from the upper side;

the U-shaped connecting part of the power jack and the signal jack comprises elastic contact force arms which are symmetrically arranged and bent inwards, and the design of a leaf spring terminal of the power contact pin and the signal contact pin is matched, so that the good connection between the jacks and the terminals during butt joint can be ensured, and the failure risk is avoided;

the plug and socket are horizontally inserted from inclined insertion guidance, so that the convenience of plugging and unplugging is improved, and the service life of the plug and socket plugging is prolonged;

fourthly, by utilizing a plurality of layers of waterproof sealing rings on the outer wall of the plug sealing element on the opposite insertion side of the plug body and a sealing gasket on the back surface of the plug body, matching a plug inner wrapping rubber and a plug outer wrapping rubber on the back surface of the plug body and a tail part packaging body on the back surface of the socket body, and realizing the single-side waterproof of the plug and the socket and the opposite insertion waterproof of the plug and the socket;

the wiring is achieved through the PCB transferring mode, so that the wiring harness is convenient to install and the space structure of the product is reduced.

Drawings

Fig. 1 is a schematic structural view of a slant-insertion waterproof connector provided by the present invention;

FIG. 2 is a schematic view of the construction of the plug;

fig. 3 is an exploded view of the structure of a plug (no plug to plug panel);

fig. 4 is an exploded view of the structure of the receptacle (no receptacle to receptacle panel);

FIG. 5 is a schematic view of the initial positioning of the connector plug and receptacle;

FIG. 6 is a schematic view of the connector plug and receptacle further angled;

FIG. 7 is a schematic diagram of the connector with the pin and socket initially angled;

fig. 8 is a schematic view of the connector plug and the receptacle when they are completely plugged.

Description of the main component symbols:

Detailed Description

The utility model will be described in more detail below with reference to the accompanying drawings:

the following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the utility model. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.

Referring to fig. 1, an inclined-insertion waterproof connector includes a plug 1 and a socket 2 which are connected in an opposite insertion manner;

referring to fig. 1, 2 and 3, the plug 1 includes a plug body 11, a plug sealing member 12, a power jack 13, a signal jack 14 and a plug opposite-plugging panel 15;

the opposite insertion surface of the plug body 11 is convexly provided with a profile block 111, the opposite insertion side of the profile block 111 is convexly provided with a plurality of opposite insertion grooves with upward openings, the side wall of the profile block 111 at the opposite insertion end is also convexly provided with a limiting step 115, and the power supply jack 13 and the signal jack 14 penetrate through the plug body 11 from the back surface and are respectively and correspondingly installed in the opposite insertion grooves;

the pair of slots comprise power supply jack pair slots 112 positioned at two sides of the shaped block 111 and a signal jack pair slot 113 positioned between the two power supply jack pair slots 112, a plurality of slotted holes distributed in a shape like a Chinese character 'tian' are arranged on the signal jack pair slot 113, an opening is formed above the slotted hole positioned above, and a certain gap is reserved between the upper wall of the slotted hole positioned below and the upper end of the signal jack 14;

a foolproof key position groove 114 is further arranged between the power jack pair-inserting groove 112 and the signal jack pair-inserting groove 113, and the outer edges of the power jack pair-inserting groove 112 and the signal jack pair-inserting groove 113 are designed into involute arcs;

the plug sealing element 12 is sleeved on the outer side of the shaped block 111 and is mounted on the opposite insertion surface of the plug body 11 through a fixing bolt, the top of the plug sealing element 12 abuts against the limiting step 115, a plurality of layers of waterproof sealing rings 121 are distributed on the outer wall of the plug sealing element 12, the waterproof sealing rings 121 are made of flexible materials, and when the plug 1 is inserted into the socket 2 in an opposite mode, the waterproof sealing rings 121 are extruded, so that the opposite insertion of the plug and the socket is realized;

the plug opposite-insertion panel 15 is fixed on the opposite-insertion surface of the plug body 11 through a fixing bolt or integrally formed on the opposite-insertion surface of the plug body 11;

the plug 1 further comprises a PCB board 16, and the PCB board 16 is soldered to the tail of the signal jack 14.

The plug 1 further comprises a plug inner rubber coating 17 and a plug outer rubber coating 18, wherein the plug inner rubber coating 17 is formed on the back face of the plug body 11 in an injection molding mode, and the plug outer rubber coating 18 is coated outside the plug inner rubber coating 17 and used for packaging tail bonding wires and fixing terminals to prevent the Pin removal failure risk of the terminals;

referring to fig. 3, the power jack 13 includes an opposite insertion portion 131 and a connection portion 132 that are integrally formed, the opposite insertion portion 131 extends downward and is bent upward to form a U-shaped structure, opposite side walls of the opposite insertion portion 131 are inwardly bent elastic contact force arms 1311, and the elastic contact force arms 1311 include a contact arc surface and a support surface;

the connecting part 132 is sleeved with a sealing element 133;

the signal jack 14 is consistent with the power jack 13.

Referring to fig. 1 and 2, a first positioning post 151, a second positioning post 152 and a plurality of positioning posts 153 are convexly disposed on the opposite insertion surface of the plug opposite insertion panel 15, the first positioning post 151 and the second positioning post 152 are respectively disposed on the upper side and the lower side of the plug main body 11, the first positioning post 151 is disposed on the opposite side of the plug main body 11, the first positioning post 151 is disposed on one side of an opening of the opposite insertion slot, and the plurality of positioning posts 153 are disposed on the left side and the right side of the plug main body and are disposed between the first positioning post 151 and the second positioning post 152;

the cross sections of the first positioning column 151, the second positioning column 152 and the plurality of limiting columns 153 are arranged in a right triangle shape, slotted holes are arranged at intervals, the whole positioning column is in a comb shape, the opening direction of comb teeth of the first positioning column 151 is opposite to that of comb teeth of the second positioning column 152, and the opening direction of comb teeth of the second positioning column 152 is the same as that of the comb teeth of the limiting columns 153;

referring to fig. 1 and 2, the edges of the plug opposite-insertion panel 15 extend outward and then are horizontally bent by 90 ° to form limiting arms 154;

after the plug 1 is plugged into the socket 2, the limiting arm 154 wraps the socket plugging panel to limit the displacement of the socket plugging panel relative to the socket plugging surface.

Referring to fig. 1 and 4, the socket 2 includes a socket body 21, a sealing gasket 22, a power pin 23, a signal pin 24, and a socket opposite-insertion panel 25;

a concave groove 211 is concavely arranged on the opposite insertion surface of the socket body 21, a touch-proof finger 212 and an insulating grid 213 are symmetrically and convexly arranged in the groove, a mounting key 214 is convexly arranged on the outer wall of the groove 211, a convex shoulder 2131 is convexly arranged on the side wall of the insulating grid 213, and the insulating grid and the convex shoulder form a fool-proof key matched with the fool-proof key groove;

the power pins 23 penetrate through the socket body 21 from the back side and are installed in the anti-touch fingers 212, the signal pins 24 penetrate through the socket body 21 from the back side and are fixed in the groove 211 of the socket body 21, and the insulation grids 213 are arranged between the power pins 23 and the signal pins 24 and are used for separating the power pins from the signal pins to increase the insulation performance;

the sealing gasket 22 is sleeved on the outer wall of the groove 211 along the mounting key 214 and fixed on the back of the socket body 21 through a fixing bolt, a plurality of clamping positions are concavely arranged on the back of the socket body 21 at intervals, a plurality of convex blocks are convexly arranged on the outer edge of the sealing gasket 22, and the convex blocks are matched with the clamping positions to realize the positioning of the sealing gasket 22;

the socket opposite-inserting panel 25 is sleeved on the opposite-inserting side of the socket body 21 along the mounting key 214 and is fixed on the socket body 21 through a fixing bolt;

the receptacle 2 also includes a rear package body 26 located on the rear side of the receptacle body 21.

The socket opposite-inserting face of the socket opposite-inserting panel 25 is correspondingly concavely provided with a first positioning groove 251, a second positioning groove 252 and a plurality of limiting grooves 253, the side wall of the first positioning groove 251, which is positioned at one side close to the socket body 21, is a guide inclined plane, and the side wall, which is positioned at one side far away from the socket body 21, is inwards convexly provided with a stop block;

the power pin 23 and the signal pin 24 are both leaf spring terminals, the power pin 23 includes a guide part 231 and a contact part 232 which are integrally formed, a dovetail groove 2311 is arranged at the top end of the guide part 231, two side walls of the guide part 231 are designed as inclined planes, and the section of the guide part is in an isosceles trapezoid shape;

dovetail steps matched with the dovetail grooves 2311 are arranged on the inner sides of the anti-touch fingers 212;

the power pin 23 is inserted into the anti-touch finger 212 under the guiding action of the inclined surface of the guiding part 231, and the dovetail groove 2311 is matched with the dovetail step and further fixed through injection molding, so that the stopping of the power pin is realized.

Referring to fig. 5-8, a plug and a socket are ready to be obliquely inserted, a first positioning column and a first positioning groove are subjected to preliminary positioning alignment, a power supply pin and a signal pin are obliquely inserted into a power supply jack and a signal jack along an opening of an opposite insertion groove, the plug and the socket slowly approach to a parallel axis along with the insertion degree, a second positioning column and a second positioning groove are subjected to positioning alignment until the plug and the socket completely approach to be parallel, a limiting column is matched with the limiting groove, and meanwhile, a limiting arm wraps a socket opposite insertion panel to limit the battery to move in a certain range;

after the plug and the socket are inserted, the stop block in the first positioning groove is abutted to the top of the first positioning column, so that the plug and the socket are prevented from loosening.

The above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims (8)

1. The inclined-insertion waterproof connector is characterized by comprising a plug and a socket which are connected in an opposite insertion manner;

the plug comprises a plug body, a waterproof sealing ring sleeved on the opposite insertion surface of the plug body, a power supply jack and a signal jack which are arranged on the plug body, a plug opposite insertion panel arranged on the opposite insertion surface of the plug body, a plug inner rubber coating arranged on the back surface of the plug body and a plug outer rubber coating coated outside the plug inner rubber coating;

the socket comprises a socket body, a sealing gasket fixed on the back of the socket body, a power supply contact pin and a signal contact pin which are installed after penetrating through the socket body from the back of the socket, and a socket opposite-inserting panel arranged on the opposite-inserting surface of the socket body;

the plug comprises a plug body, a power supply plug and a signal plug, wherein a butt-inserting surface of the plug body is convexly provided with a profile block, a butt-inserting side of the profile block is convexly provided with a plurality of butt-inserting grooves with upward openings, the power supply plug and the signal plug penetrate through the plug body from the back of the plug and are respectively installed in the corresponding butt-inserting grooves, and the power supply plug pin and the signal plug pin are obliquely inserted into the corresponding power supply plug hole and the corresponding signal plug hole from the openings above the butt-inserting grooves;

the plug is characterized in that a first positioning column and a second positioning column are convexly arranged on the opposite insertion surface of the plug opposite insertion panel, the first positioning column and the second positioning column are respectively positioned on the opposite sides of the plug body, and the first positioning column is arranged on one side of an opening of the opposite insertion groove;

the socket is characterized in that a first positioning groove and a second positioning groove are correspondingly and concavely arranged on the opposite insertion surface of the opposite insertion panel of the socket, the side wall of the first positioning groove, which is positioned at one side close to the socket body, is a guide inclined surface, and a stop block is convexly arranged on the side wall, which is positioned at one side far away from the socket body.

2. The angle-insertion waterproof connector according to claim 1, wherein the plug includes a plug body, a plug seal, a power jack, a signal jack, a plug-to-plug panel;

the plug comprises a plug body, a plug side of the plug body is provided with a convex block, a plurality of opposite insertion grooves with upward openings are arranged on the opposite insertion side of the convex block, the side wall of the opposite insertion end of the convex block is also provided with a limiting step in a convex mode, a foolproof key position groove is arranged between two adjacent pairs of insertion grooves, and the outer edges of the opposite insertion grooves are designed in an arc shape;

the plug sealing element is sleeved on the outer side of the section block and is installed on the opposite insertion surface of the plug body through a fixing element, the top of the plug sealing element is abutted against the limiting step, and a plurality of layers of waterproof sealing rings are distributed on the outer wall of the plug sealing element;

the plug opposite-insertion panel is fixed on the opposite-insertion surface of the plug body through a fixing element or integrally formed on the opposite-insertion surface of the plug body;

the power supply jack and the signal jack penetrate through the plug body from the back face and are respectively and correspondingly installed in the opposite inserting grooves.

3. The inclined-insertion waterproof connector according to claim 1 or 2, wherein the power jack comprises an opposite insertion part and a connecting part which are integrally formed, the opposite insertion part extends downwards and is bent upwards to form a U-shaped structure, the side wall of the opposite insertion part is oppositely provided with an elastic contact force arm bent inwards, and the elastic contact force arm comprises a contact arc surface and a supporting surface;

the connecting part is sleeved with a sealing element;

the signal jack is consistent with the power jack in structure.

4. The angle-insertion waterproof connector according to claim 2, wherein the plug further comprises a PCB board soldered to a tail of the signal jack.

5. The inclined-insertion waterproof connector as claimed in claim 1 or 2, wherein the insertion surface of the plug insertion panel is convexly provided with a first positioning column, a second positioning column and a plurality of limiting columns, the first positioning column and the second positioning column are respectively located at two sides of the plug main body, the first positioning column is located at the opposite side of the plug main body, the first positioning column is arranged at one side of the opening of the insertion slot, and the plurality of limiting columns are distributed around the plug main body;

the cross sections of the first positioning column, the second positioning column and the plurality of limiting columns are arranged in a right triangle shape, slotted holes are arranged at intervals, the whole positioning column is in a comb shape, the opening direction of comb teeth of the first positioning column is opposite to that of comb teeth of the second positioning column, and the opening direction of comb teeth of the second positioning column is the same as that of the limiting columns.

6. The angle insertion waterproof connector according to claim 1 or 2, wherein the edges of the plug opposite insertion panels are respectively bent horizontally by 90 degrees after extending outwards to form limiting arms;

after the plug is plugged into the socket, the limiting arm wraps the socket plugging panel and is used for limiting the displacement of the socket plugging panel relative to the socket plugging surface.

7. The inclined-insertion waterproof connector as claimed in claim 1, wherein the socket comprises a socket body, a sealing gasket, a power pin, a signal pin and a socket opposite-insertion panel;

a groove is concavely arranged on the opposite insertion surface of the socket body, anti-touch fingers and an insulating grid are symmetrically and convexly arranged in the groove, a mounting key is convexly arranged on the outer wall of the groove, and a convex shoulder is convexly arranged on the side wall of the insulating grid;

the power supply contact pin penetrates through the socket body from the back side and is installed in the anti-touch finger, the signal contact pin penetrates through the socket body from the back side and is fixed on the socket body, and the insulation grid is arranged between the power supply contact pin and the signal contact pin;

the sealing gasket is sleeved on the outer wall of the groove along the mounting key and is fixed on the back of the socket body through the fixing element;

the socket opposite-inserting panel is sleeved on the opposite-inserting side of the socket body along the mounting key and is fixed on the socket body through a fixing element;

the socket also includes a tail package body located at the back of the socket body.

8. The inclined waterproof connector as claimed in claim 7, wherein the power pin is a leaf spring terminal, the power pin comprises a guiding part and a contact part which are integrally formed, a dovetail groove is formed at the top end of the guiding part, two side walls of the guiding part are designed as inclined planes, and the cross section of the guiding part is in an isosceles trapezoid shape;

the inner side of the anti-touch finger is provided with a dovetail step matched with the dovetail groove;

the power supply contact pin is inserted into the anti-touch finger under the guiding action of the inclined surface of the guiding part, and the dovetail groove is matched with the dovetail step to realize the fixation of the power supply contact pin.

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