CN219892489U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises an electric connector body, a wire penetrating clamp and a cable assembly, wherein the wire penetrating clamp is arranged on the electric connector body; the threading clamp comprises a main body, the cable assembly comprises a wire, a wire passing hole penetrating through the main body is formed in the main body, and one end of the wire passes through the wire passing hole and is electrically connected with the electric connector body; the inner wall of the wire passing hole is provided with a limiting part, and the limiting part is penetrated with a containing groove matched with the wire, so that the wire is contained in the containing groove; the limiting part is far away from one end of the electric connector body to form a groove, and the limiting part and the groove form a step structure. Therefore, the electric connector can conveniently carry out glue injection from the groove by arranging the wire penetrating clamp, so that the wires are fixedly connected with the wire penetrating clamp, and the electric connector body, the wire penetrating clamp and the cable assembly are conveniently connected to form the electric connector.

Description

Electric connector

Technical Field

The present utility model relates to the field of electrical connectors, and in particular, to an electrical connector.

Background

The USB cable connector is widely used for connection and communication between various electronic devices, and generally includes an electrical connector body and a cable assembly, and is connected with the cable assembly through conductive terminals in the electrical connector body to realize transmission of electric power, signals and the like, and the cable assembly has a plurality of wires, so that the plurality of wires are required to be connected with corresponding conductive terminals respectively, and thus, transmission of electric power, signals and the like is realized.

When connecting, can set up the threading clamp generally, the terminal of wire is peeled the back and is made wire and conductive terminal correspond through threading clamp to the terminal and the conductive terminal electricity of wire are connected, thereby realize that electric connector body and cable assembly's electricity is connected and is constituteed a connector that can transmit electric power and signal, and then link together through the mode of injecting glue between wire and the threading clamp, but traditional electric connector's threading clamp is when injecting glue, is difficult for getting into because the clearance between wire and the threading clamp is less makes the colloid easily, thereby leads to injecting glue difficulty between wire and the threading clamp, difficult connection. Therefore, there is a need for an electrical connector that is easy to glue and thus facilitates connection of the wires to the threading clips.

Disclosure of Invention

Based on this, it is necessary to provide an electrical connector that is easy to glue and thus facilitates connection of the wires with the threading clips.

In order to solve the above problems, the present utility model provides an electrical connector, including an electrical connector body, a wire clip, and a cable assembly;

the threading clamp comprises a main body, the cable assembly comprises a wire, a wire passing hole penetrating through the main body is formed in the main body, and one end of the wire passes through the wire passing hole and is electrically connected with the electric connector body;

the inner wall of the wire passing hole is provided with a limiting part, and the limiting part is penetrated with a containing groove matched with the wire, so that the wire is contained in the containing groove;

the limiting part is far away from one end of the electric connector body to form a groove, and the limiting part and the groove form a step structure.

In one embodiment, the limiting portion is disposed at an end of the wire passing hole near the electrical connector body, and an end of the limiting portion near the electrical connector body is in the same plane with an end of the main body near the electrical connector body.

In one embodiment, the number of the limiting parts arranged in one wire passing hole is two, and the two limiting parts are oppositely arranged along the height direction of the wire passing hole, so that a channel matched with the wire is formed between the two limiting parts.

In one embodiment, the number of the via holes is two, and the two via holes are arranged at intervals along the length direction of the main body, wherein the length direction of the limiting part is consistent with the length direction of the main body.

In one embodiment, the via is shaped as a flat hole.

In one embodiment, the body is elongated in shape.

In one embodiment, a side of the step structure away from the electrical connector body is an inclined surface, and the inclined surface is inclined towards a side close to the electrical connector body.

In one embodiment, the wire comprises a first branch and a second branch, wherein one ends of the first branch and the second branch far away from the main body are connected to form a strand, and the first branch and the second branch are arranged at intervals near one end of the main body;

the number of the accommodating grooves arranged in one wire passing hole is two, the two accommodating grooves are arranged at intervals along the length direction of the limiting part, and the first branch and the second branch are respectively arranged in the two accommodating grooves.

In one embodiment, the wire further comprises a third branch, wherein one end of the third branch far away from the main body is connected to form a strand, and one end of the third branch near the main body is arranged between the first branch and the second branch and is spaced from the first branch and the second branch;

a concave part is arranged at one end of the main body, which is close to the electric connector body, and the width of the concave part is matched with the size of the third branch, so that the concave part can accommodate the third branch when the third branch bypasses the second branch along the length direction;

the electric connector body comprises a conductive terminal assembly and a welding part assembly corresponding to the conductive terminal assembly, the welding part assembly is close to the main body, the welding part assembly comprises a first welding part, a second welding part and a third welding part which are arranged at intervals, so that the first welding part corresponds to one of the accommodating grooves, the second welding part corresponds to the other accommodating groove, and the third branch bypasses the second branch and then corresponds to the third welding part.

In one embodiment, the recess is a strip-shaped groove.

By implementing the embodiment of the utility model, the connector with the wire penetrating clamp can be convenient for electrically connecting the electric connector body and the cable through the arrangement of the wire penetrating clamp, the wire penetrating hole can be convenient for the first wire to penetrate, and the arrangement of the limiting part and the accommodating groove can be used for fixing and limiting the position of one end of the wire close to the electric connector body;

through setting up the recess, can make spacing portion and recess form the step structure to the recess is located the one end that keeps away from the electric connector body, just can carry out the injecting glue in the recess from the one end that keeps away from the electric connector body this moment, and the colloid can fill the space between recess and the wire, thus with wire and main part fixed connection together, then the setting up of step structure is convenient for carry out the injecting glue to the recess that the size is bigger than the wire, thereby with wire and main part fixed connection;

therefore, the electric connector can conveniently carry out glue injection from the groove by arranging the wire penetrating clamp, so that the wires are fixedly connected with the wire penetrating clamp, and the electric connector body, the wire penetrating clamp and the cable assembly are conveniently connected to form the electric connector.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

fig. 1 is a schematic structural diagram of an electrical connector according to an embodiment.

Fig. 2 is a cross-sectional view of a partial view of the electrical connector shown in fig. 1.

Fig. 3 is a schematic structural view of a wire harness in the electrical connector shown in fig. 1.

Fig. 4 is a schematic view of a part of the cable clip in the electrical connector shown in fig. 1.

Fig. 5 is a cross-sectional view of a wire clip in the electrical connector shown in fig. 1.

Fig. 6 is another view of a cross-sectional view of the feedthrough clip in the electrical connector shown in fig. 1.

Fig. 7 is a schematic view of a partial structure of the electrical connector shown in fig. 1.

Reference numerals:

10-electrical connector body, 11-conductive terminal assembly, 12-solder assembly, 122-first solder, 124-second solder, 126-third solder;

20-wire penetrating clamps, 21-main bodies, 212-concave parts, 22-rear covers, 23-wire penetrating holes, 231-grooves, 232-limiting parts and 2322-accommodating grooves;

30-cable assembly, 32-conductor, 322-first branch, 324-second branch, 326-third branch.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the members in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are correspondingly changed.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1-7, an electrical connector according to an embodiment of the present utility model includes an electrical connector body 10, a threading clip 20, and a cable assembly 30.

The wire clip 20 comprises a main body 21, the cable assembly 30 comprises a wire 32, a wire through hole 23 penetrating through the main body 21 is formed in the main body 21, and one end of the wire 32 penetrates through the wire through hole 23 and is electrically connected with the electric connector body 10.

The inner wall of the wire passing hole 23 is provided with a limiting part 232, and an accommodating groove 2322 matched with the wire 32 is penetrated and arranged on the limiting part 232, so that the wire 32 is accommodated in the accommodating groove 2322.

The end of the limiting portion 232 away from the electrical connector body 10 forms a groove 231, and the limiting portion 232 and the groove 231 form a step structure.

Specifically, the groove 231 is cut out on the inner wall of the via hole 23, so that the non-cut-out portion forms the limit portion 232, and the side wall of the via hole 23 after the groove 231 is cut out has a height difference from the side wall of the limit portion 232, so that the limit portion 232 and the groove 231 form a step structure.

The spacing portion 232 is kept away from the one end of electric connector body 10 and is formed recess 231, spacing portion 232 and recess 231 of being convenient for form step structure, spacing portion 232 and holding tank 2322 that the wire hole 23 inner wall set up match with wire 32, the one end that wire 32 is close to electric connector body 10 of being convenient for is fixed by spacing portion 232, through setting up recess 231, make the inner wall of wire hole 23 that is provided with recess 231 department not contact with wire 32, then just can directly follow recess 231 and carry out the injecting glue to wire hole 23, the colloid gets into wire hole 23 and the clearance between wire 32 and recess 231 and the wire 32 along recess 231, after the colloid solidification, wire 32 and main part 21 fixed connection.

The recess 231 is convenient for the injecting glue, and spacing portion 232 and holding tank 2322 that match with wire 32 are convenient for fix first wire 32, and step structure can conveniently be injected glue, can also prevent to a certain extent when the injecting glue that too much colloid overflows and flows to the end of first wire 32 to influence the electrically conductive effect of first direction.

By implementing the embodiment of the utility model, the connector with the wire penetrating clamp 20 can facilitate the electrical connection between the electrical connector body 10 and the cable through the arrangement of the wire penetrating clamp 20, the wire penetrating hole 23 can facilitate the first wire 32 to penetrate, and the arrangement of the limiting part 232 and the accommodating groove 2322 can fix and limit the position of one end of the wire 32 close to the electrical connector body 10.

Through setting up recess 231, can make spacing 232 and recess 231 form step structure to recess 231 is located the one end of keeping away from electric connector body 10, just can follow the one end of keeping away from electric connector body at this moment and carry out the injecting glue towards in the recess 231, and the space between recess 231 and the wire 32 can be filled to the colloid to with wire 32 and main part 21 fixed connection together, then step structure's setting is convenient for carry out the injecting glue to the recess 231 that the size is bigger than wire 32 in, thereby with wire 32 and main part 21 fixed connection.

Therefore, such an electrical connector can facilitate the injection of glue from the groove 231 by providing the threading clamp 20, thereby connecting and fixing the wire 32 with the threading clamp 20, and facilitating the connection of the electrical connector body 10, the threading clamp 20 and the cable assembly 30 to form an electrical connector.

After one end of the wire 32 is fixed by the limiting part 232, the wire 32 can be limited in position, and then the wire 32 can be directly injected through the groove 231, so that the position of the wire 32 is not required to be continuously adjusted in the process of injecting glue, the wire 32 does not need to be misplaced in the process of injecting glue, and the wire 32 is conveniently and fixedly connected to the main body 21 by injecting glue.

Preferably, the limiting portion 232 is disposed at an end of the via hole 23 near the electrical connector body 10, and an end of the limiting portion 232 near the electrical connector body 10 is in the same plane with an end of the main body 21 near the electrical connector body 10.

Specifically, the groove 231 is disposed at the end of the via 23 near the cable assembly 30, and then the height of the step structure near the end of the electrical connector body 10 is higher than the height of the end far away from the electrical connector body 10, so that the glue injection is conveniently performed through the groove 231, and when the glue is injected, the step structure can protect the tail end of the wire 32 to a certain extent, so that the tail end of the wire 32 is prevented from being blocked by excessive glue to affect the electrical connection between the wire 32 and the electrical connector.

When the main body 21 abuts against the distal end of the electrical connector body 10, the stopper 232 abuts against the distal end of the electrical connector body 10 to weld the lead wire 32.

In another embodiment, the rear end surface of the limiting portion 322 is disposed on the front side of the rear end surface of the main body 21, so that when the main body 21 abuts against the electrical connector body 10, the limiting portion 232 is not in contact with the electrical connector body, and the glue can be further prevented from overflowing onto the electrical connector body 10.

Preferably, a side of the step structure away from the electrical connector body 10 is an inclined surface, and the inclined surface is inclined toward a side close to the electrical connector body 10.

The front side of the limiting part 232 is inclined to facilitate smooth connection of the groove 231 with the via hole 23, and the inclined surface is inclined to the rear side to facilitate filling of gaps between the wire 32 and the inner wall of the groove 231 and gaps between the wire 32 and the inner wall of the via hole 23 smoothly when the glue level rises during glue injection, so that the wire 32 and the main body 21 are fixedly connected together through glue injection.

Preferably, the length of the recess 231 is twice as long as the stopper 232.

Specifically, if the limiting portion 232 is longer, the glue injection is inconvenient, and if the limiting portion 232 is shorter, the fixing of the end portion of the wire 32 is inconvenient, and therefore, setting the length of the groove 231 to be twice that of the limiting portion 232 can facilitate the fixing of the end portion of the wire 32, so that the glue injection is performed from the groove 231 region.

The number of the limiting parts 232 arranged in one wire through hole 23 is two, and the two limiting parts 232 are oppositely arranged along the height direction of the wire through hole 23, so that a channel matched with the wire 32 is formed between the two limiting parts 232.

Specifically, two limiting portions 232 are disposed in one via hole 23, and the two limiting portions 232 are disposed vertically opposite to each other, so that a channel can be formed, and the channel is matched with the size of the wire 32, so as to clamp and fix one end of the wire 32 close to the electrical connector body 10.

It can be understood that the channel is formed by connecting two limiting portions 232, the two limiting portions 232 have the same structure, and the two limiting portions 232 are disposed up and down oppositely, so that the side wall of the channel abuts against the outer periphery of the wire 32 when the wire 32 passes through the channel.

Referring to fig. 1 to 6, the number of the via holes 23 is two, and the two via holes 23 are disposed at intervals along the longitudinal direction of the main body 21, wherein the longitudinal direction of the limiting portion 232 is identical to the longitudinal direction of the main body 21.

Preferably, the body 21 is elongated in shape.

Specifically, the number of the via holes 23 is two, a channel through which the conductive wires 32 can pass is formed in each via hole 23 by two limiting portions 232, and the two via holes 23 are disposed along the length direction of the main body 21. The two via holes 23 are arranged horizontally, so that the two wires 32 passing through the two via holes 23 are connected with the electric connector body 10 correspondingly.

Preferably, the via hole 23 has a flat hole shape.

Specifically, the flat hole-like via 23 facilitates receiving the flat wire 32.

Referring to fig. 1-7, the wire 32 includes a first branch 322 and a second branch 324, the ends of the first branch 322 and the second branch 324 remote from the body 21 are connected to form a strand, and the ends of the first branch 322 and the second branch 324 near the body 21 are spaced apart.

The number of the accommodating grooves 2322 disposed in one via hole 23 is two, the two accommodating grooves 2322 are disposed at intervals along the length direction of the limiting part 232, and the first branch 322 and the second branch 324 are respectively disposed in the two accommodating grooves 2322.

Specifically, the first branch 322 and the second branch 324 are a flat wire near one end of the cable assembly 30, the other ends of the first branch 322 and the second branch 324 are two wires arranged at intervals, and the two accommodating grooves 2322 arranged at intervals accommodate the first branch 322 and the second branch 324 respectively, so that the first branch 322 and the second branch 324 are limited in position when the wires 32 pass through the channel, the first branch 322 and the second branch 324 can be separated, and short circuit or signal interference of the electric connector after the first branch 322 and the second branch 324 are arranged in a chaotic manner to be connected with the electric connector body 10 is avoided, and meanwhile, the wires 32 and the electric connector body 10 are also convenient to correspondingly connect.

Further, the lead 32 further includes a third branch 326, wherein an end of the third branch 326 remote from the body 21 is connected to form a strand, and the third branch 326 is disposed between the first branch 322 and the second branch 324 near an end of the body 21 and spaced apart from the first branch 322 and the second branch 324.

The end of the main body 21 near the electrical connector body 10 is provided with a recess 212, and the width of the recess 212 matches the size of the third branch 326, so that the recess 212 can accommodate the third branch 326 when the third branch 326 passes around the second branch 324 along the length direction.

The electrical connector body 10 includes a conductive terminal assembly 11 and a solder assembly 12 corresponding to the conductive terminal assembly 11, the solder assembly 12 is disposed near the main body 21, the solder assembly 12 includes a first solder 122, a second solder 124 and a third solder 126 disposed at intervals, so that the first solder 122 corresponds to one of the accommodating slots 2322, the second solder 124 corresponds to the other accommodating slot 2322, and the third branch 326 bypasses the second branch 324 and then corresponds to the third solder 126.

Specifically, the third branch 326 is connected to the first branch 322 and the second branch 324 near one end of the cable assembly 30, and forms a flat wire, and the other end of the third branch 326 is spaced from the first branch 322 and the second branch 324, such that the first branch 322, the second branch 324, and the third branch 326 are three wires spaced from each other.

After the wire 32 passes through the wire through hole 23 on the main body 21, the first branch 322 and the second branch 324 are separated and limited by two accommodating grooves 2322 arranged at intervals, wherein the parts of the first branch 322 and the second branch 324, which are positioned in the accommodating grooves 2322 and are exposed out of the main body 21, are provided with cortex bushings, one ends of the first branch 322 and the second branch 324, which are close to the electric connector body 10, are provided with tail ends, the tail ends of the first branch 322 and the second branch 324 are bare wires without the cortex bushings, and the tail ends of the first branch 322 and the second branch 324 are used for being correspondingly welded with the welding part assembly 12 so as to realize corresponding connection of the wire 32 and the conductive terminal assembly 11.

Through setting up that one holding tank 2322 corresponds with first welded part 122, another holding tank 2322 corresponds with second welded part 124, can make things convenient for first branch 322 and second branch 324 to be connected with corresponding welded part respectively to make wire 32 be connected with the conductive terminal electricity that corresponding welded part corresponds, and then make the cable be connected with electric connector body 10 electricity, the terminal of first branch 322 and second branch 324 is interval each other, mutually noninterfere, can avoid electric connector short circuit or take place signal interference.

In one of the via holes 23, in connection with fig. 5. One receiving slot 2322 is disposed adjacent one side wall of the via 23 and the other receiving slot 2322 is disposed adjacent the other side wall of the via 23 such that the two receiving slots 2322 separate the first branch 322 and the second branch 324.

The portion of the third branch 326 passing out of the main body 21 is a bare wire without a cortical sleeve, the third branch 326 bypasses over the second branch 324 and is then connected with the third welding part 126, so that the third branch 326 is electrically connected with a conductive terminal corresponding to the third welding part 126, because the portion of the second branch 324 passing out of the main body 21 is provided with the cortical sleeve, the third branch 326 bypasses over the second branch 324 without signal interference, and the recess 212 is just arranged so that the third branch 326 can be accommodated when the third branch 326 laterally bypasses over the second branch 324, thereby avoiding the third branch 326 protruding out of the main body 21 and being damaged.

Similarly, another wire is electrically connected to the connector body 10 in the same manner, such that six wires are soldered to the solder assemblies 12 of the connector body 10, respectively, with the ends of the six wires spaced apart from each other and without interfering with each other.

Preferably, the length of the recess 212 is 0.3mm.

The diameter of the third branch 326 is also 0.3mm.

Further, the recess 212 is a strip-shaped groove 231.

Specifically, since the first welded portion 122, the second welded portion 124, and the third welded portion 126 are sequentially provided at intervals, and the third branch 326 is connected to the third welded portion 126 while bypassing the second branch 324, the stripe-shaped concave portion 212 corresponds to the first welded portion 122, the second welded portion 124, and the third welded portion 126, and the third branch 326 can be easily connected to the third welded portion 126.

Preferably, the recess 212 is disposed from the middle region of the limiting hole toward one end in the height direction.

Referring to fig. 3, in one embodiment, the recess 212 is formed from the middle region of the limiting aperture toward the upper end.

In another embodiment, the recess 212 opens from the middle region of the limiting aperture to the lower end.

Wherein, offer more convenient third branch 326 wire winding and connection towards the upper end, be convenient for operate.

Therefore, by arranging the wire clips 20, the wires 32 can be arranged at intervals near one end of the electrical connection body, and the ends of the first branch 322, the second branch 324 and the third branch 326 can be correspondingly connected with the corresponding welding parts, so that the wires 32 are correspondingly connected with the conductive terminals.

In a specific embodiment, the threading clip 20 further includes a rear cover 22, the rear cover 22 is disposed on a side of the main body 21 far away from the electrical connector body 10, a functional hole capable of allowing the wire 32 to pass through is formed in the rear cover 22, the rear cover 22 is opened, then glue is injected into a groove 231 on the main body 21, and after the glue is filled, the rear cover 22 is closed, so that the rear cover 22 and the main body 21 are connected together, and accordingly the wire 32 and the threading clip 20 are installed and fixed.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An electric connector is characterized by comprising an electric connector body, a wire penetrating clamp and a cable assembly;

the threading clamp comprises a main body, the cable assembly comprises a wire, a wire passing hole penetrating through the main body is formed in the main body, and one end of the wire passes through the wire passing hole and is electrically connected with the electric connector body;

the inner wall of the wire passing hole is provided with a limiting part, and the limiting part is penetrated with a containing groove matched with the wire, so that the wire is contained in the containing groove;

the limiting part is far away from one end of the electric connector body to form a groove, and the limiting part and the groove form a step structure.

2. The connector of claim 1, wherein the limit portion is disposed at an end of the via adjacent to the electrical connector body, and an end of the limit portion adjacent to the electrical connector body is coplanar with an end of the main body adjacent to the electrical connector body.

3. The connector of claim 2, wherein the number of the limiting portions provided in one of the via holes is two, and two of the limiting portions are disposed opposite to each other along the height direction of the via hole, so that a passage matching the wire is formed between the two limiting portions.

4. The connector of claim 3, wherein the number of the via holes is two, and the two via holes are spaced apart along the length direction of the main body, and wherein the length direction of the limiting portion is identical to the length direction of the main body.

5. The connector of claim 4, wherein the via is flat in shape.

6. The connector of claim 5, wherein the body is elongated in shape.

7. The connector of claim 2, wherein a side of the step structure remote from the electrical connector body is an inclined surface, the inclined surface being inclined toward a side closer to the electrical connector body.

8. The connector of any one of claims 1-7, wherein the wire includes a first branch and a second branch, the first branch and the second branch being connected at an end remote from the body to form a strand, the first branch and the second branch being spaced apart near the end of the body;

the number of the accommodating grooves arranged in one wire passing hole is two, the two accommodating grooves are arranged at intervals along the length direction of the limiting part, and the first branch and the second branch are respectively arranged in the two accommodating grooves.

9. The connector of claim 8, wherein the wire further comprises a third branch, an end of the third branch distal from the body being connected to form a strand, the end of the third branch proximal to the body being disposed between and spaced apart from the first and second branches;

a concave part is arranged at one end of the main body, which is close to the electric connector body, and the width of the concave part is matched with the size of the third branch, so that the concave part can accommodate the third branch when the third branch bypasses the second branch along the length direction;

the electric connector body comprises a conductive terminal assembly and a welding part assembly corresponding to the conductive terminal assembly, the welding part assembly is close to the main body, the welding part assembly comprises a first welding part, a second welding part and a third welding part which are arranged at intervals, so that the first welding part corresponds to one of the accommodating grooves, the second welding part corresponds to the other accommodating groove, and the third branch bypasses the second branch and then corresponds to the third welding part.

10. The connector of claim 9, wherein the recess is a strip groove.