Male head of connector

Abstract

The utility model discloses a connector male head. The connector male head comprises a housing; the insulator is arranged in the shell, and the insulator is provided with a first mounting groove and a second mounting groove which are distributed side by side; the two grounding terminals are respectively arranged at the two sides of the shell; one of the two interface terminals is installed in the first installation groove, the other interface terminal is installed in the second installation groove, each interface terminal comprises a plurality of conducting strips which are stacked in sequence, and each conducting strip is used for connecting a connector female head and a cable terminal. And the connector female head is matched with the connector male head. According to the embodiment provided by the invention, the safety and the electrical performance of the connector male head can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic information, in particular to a connector male head. BACKGROUND

[0002] At present, when the cable connector is connected, the ground terminal is often impacted at the front end due to incorrect insertion angle, resulting in deformation of the ground terminal, and even damage to the ground terminal so as to fail to produce the grounding effect. In addition, the production process of the traditional interface terminal is usually integrated stamping forming, and the surface of the interface terminal is relatively rough. Therefore, the interface terminal and the connector female head cannot be fully contacted, resulting in poor contact and poor electrical performance of the connector male head. CONTENT OF THE UTILITY MODEL

[0003] The following is a summary of the subject matter described in detail in this document, which is not intended to limit the scope of protection of the claims.

[0004] The present application provides a connector male head, which can improve the safety and electrical performance of the connector male head.

[0005] The present application provides a connector male head, which comprises a shell, an insulator arranged in the interior of the shell, the insulator being provided with first mounting slots and second mounting slots arranged side by side, two ground terminals arranged on the two sides of the shell respectively, and two interface terminals, one of which is mounted in the first mounting slot and the other of which is mounted in the second mounting slot, the interface terminal comprising a plurality of conductive sheets stacked in sequence, each of the conductive sheets being used for connecting a connector female head and a cable terminal, and the connector female head being matched with the connector male head.

[0006] In some embodiments, the opening of the first mounting slot is arranged on the first side of the insulator, and the opening of the second mounting slot is arranged on the second side of the insulator, the second side being opposite to the first side.

[0007] In some embodiments, the first side is provided with a first hollow area in communication with the second mounting slot, and the second side is provided with a second hollow area in communication with the first mounting slot.

[0008] In some embodiments, the ground terminal comprises a support plate, a first elastic arm arranged on one side of the support plate, and a second elastic arm, the fourth elastic arm of the second elastic arm being connected to one end of the support plate and having an included angle.

[0009] In some embodiments, two first buckles are arranged on two sides of the shell, and the ground terminal is further provided with a first clamping groove, which is arranged on a plane connected to the other end of the support plate and has an included angle, and the first clamping groove is used for clamping the first buckle.

[0010] In some embodiments, the second elastic arms are arranged side by side.

[0011] In some embodiments, two signal terminals are further included, and the two signal terminals are arranged on the bottom of the shell and used for connecting the connector female head and the signal wire.

[0012] In some embodiments, the signal terminal includes a third elastic arm, a fourth elastic arm and a first connecting part, the third elastic arm is connected to one end of the first connecting part, the fourth elastic arm is connected to the other end of the first connecting part, the third elastic arm is used for connecting the connector female head, and the fourth elastic arm is used for connecting the signal wire.

[0013] In some embodiments, the first connecting part of one of the signal terminals is provided with a fifth elastic arm away from one side of the other signal terminal, and the fifth elastic arm is used for connecting the connector female head.

[0014] In some embodiments, the two sides of the shell are respectively provided with a second clamping groove, and the two sides of the insulator are respectively provided with a second buckle, and the second buckle is used for clamping the second clamping groove.

[0015] The embodiments of the present application have at least the following beneficial effects: the insulator is arranged inside the shell, and the insulator is provided with first and second mounting grooves arranged side by side, since the interface terminal includes a plurality of conductive pieces stacked in sequence, each of the conductive pieces is used for connecting the connector female head and the cable terminal, and the connector female head is matched with the connector male head, therefore, each of the conductive pieces is independent of each other, each of the conductive pieces can be in contact with the connector female head, and each of the conductive pieces can be in contact with the cable terminal, so that the interface terminal is in full contact with the connector female head and the cable terminal, preventing poor contact, improving the electrical performance of the interface terminal, and improving the current quality between the connector female head and the cable terminal, and then the two ground terminals are arranged on the two sides of the shell, preventing the ground terminal from being directly hit and causing the ground function to be damaged, and improving the safety of the connector male head.

[0016] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the present application will be realized and attained by the structure particularly pointed out in the description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are used to explain the technical solutions of the application, and do not constitute a limitation on the technical solutions of the application.

[0018] Figure 1 An optional structural schematic diagram of the connector male provided by the embodiment of the present application is shown in FIG. 4;

[0019] Figure 2 An optional structural schematic diagram of the connector male provided by the embodiment of the present application is shown in FIG. 4;

[0020] Figure 3 An optional structural schematic diagram of the connector male provided by the embodiment of the present application is shown in FIG. 4;

[0021] Figure 4 An optional structural schematic diagram of the conductive sheet provided by the embodiment of the present application is shown in FIG. 6;

[0022] Figure 5 An optional structural schematic diagram of the insulator provided by the embodiment of the present application is shown in FIG. 7;

[0023] Figure 6 An optional structural schematic diagram of the signal terminal provided by the embodiment of the present application is shown in FIG. 8;

[0024] Figure 7 An optional structural schematic diagram of the shell provided by the embodiment of the present application is shown in FIG. 9. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0026] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application, which does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0027] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. is understood as not including the number, above, below, etc. is understood as including the number. If the first, second is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0028] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0029] At present, when the cable connector is connected, it is often because the insertion angle is incorrect, so as to hit the front end of the grounding terminal, causing the grounding terminal to be deformed, and even damaged to cause the grounding effect, in addition, the production process of the traditional interface terminal is usually integrated stamping, the surface of the interface terminal is relatively rough, therefore, the interface terminal and the connector female head cannot be fully contacted, causing poor contact, resulting in poor electrical performance of the connector male head.

[0030] In view of the problems of poor safety and electrical performance of the connector male head, the present application provides a connector male head, which comprises: a shell; an insulator arranged in the interior of the shell, the insulator is provided with a first mounting groove and a second mounting groove arranged side by side; two grounding terminals, the two grounding terminals are respectively arranged on both sides of the shell; two interface terminals, one of the interface terminals is mounted in the first mounting groove, and the other interface terminal is mounted in the second mounting groove, the interface terminal comprises a plurality of conductive sheets stacked in sequence, each conductive sheet is used for connecting the connector female head and the cable terminal, and the connector female head is matched with the connector male head. According to the scheme provided by the embodiment of the present application, the insulator is arranged in the interior of the shell, and the insulator is provided with a first mounting groove and a second mounting groove arranged side by side, since the interface terminal comprises a plurality of conductive sheets stacked in sequence, each conductive sheet is used for connecting the connector female head and the cable terminal, and the connector female head is matched with the connector male head, therefore, each conductive sheet is independent of each other, each conductive sheet can be contacted with the connector female head respectively, and each conductive sheet can be contacted with the cable terminal respectively, so that the interface terminal and the connector female head are fully contacted, and the interface terminal and the cable terminal are fully contacted, preventing poor contact, which can improve the electrical performance of the interface terminal and the current quality between the connector female head and the cable terminal, and then the two grounding terminals are respectively arranged on both sides of the shell, which can prevent the grounding function from being damaged due to the direct impact of the grounding terminal, and can improve the safety of the connector male head.

[0031] The embodiments of the present application will be further described below with reference to the drawings.

[0032] Referring to Figures 1 to 4 , Figure 1 An optional structure diagram of a connector male provided by the embodiments of the present application is shown in FIG. 1. Figure 2 An optional structure diagram of a connector male provided by the embodiments of the present application is shown in FIG. 1. Figure 3 An optional top view of a connector male provided by the embodiments of the present application is shown in FIG. 2. Figure 4 An optional structure diagram of a conductive sheet provided by the embodiments of the present application is shown in FIG. 3.

[0033] The shell 100;

[0034] The insulator 200 is arranged inside the shell 100, and the insulator 200 is provided with the first mounting slot 220 and the second mounting slot 230 arranged side by side.

[0035] The two ground terminals 300 are arranged on the two sides of the shell 100 respectively.

[0036] The two interface terminals 400 are arranged in the first mounting slot 220 and the second mounting slot 230 respectively, and the interface terminal 400 includes a plurality of conductive sheets 410 stacked in sequence, each of the conductive sheets 410 is used for connecting the connector female 700 and the cable terminal 800, and the connector female 700 is matched with the connector male.

[0037] The interface terminal 400 further includes the fixing column 420, the conductive sheet 410 includes the first contact part 411, the second contact part 412, the third contact part 413 and the second connecting part 414, the plurality of conductive sheets 410 are arranged in the length direction of the fixing column 420, the second connecting part 414 is provided with the through hole for passing through the fixing column 420, the first contact part 411 is arranged on one side of the second connecting part 414, the second contact part 412 and the third contact part 413 are arranged on the other side of the second connecting part 414, the first contact part 411 is used for connecting the connector female 700 matched with the connector male, the side of the second contact part 412 close to the third contact part 413 is used for connecting one side of the cable terminal 800, and the side of the third contact part 413 close to the second contact part 412 is used for connecting the other side of the cable terminal 800.

[0038] It should be noted that the first contact part 411 is in a strip shape, the first contact part 411 extends away from the insulator 200, the second contact part 412, the third contact part 413 and the second connecting part 414 are all located in the insulator 200; the first contact part 411 is also located in the shell 100, and the shell 100 between the first contact parts 411 corresponding to the two interface terminals 400 is provided with a notch 130, and the notch 130 is used for connecting the first contact part 411 and the connector female head 700.

[0039] Based on this, the insulator 200 is arranged in the inside of the shell 100, and the insulator 200 is provided with the first mounting groove 220 and the second mounting groove 230 arranged side by side, since the interface terminal 400 includes a plurality of conductive sheets 410 stacked in sequence, each conductive sheet 410 is used for connecting the connector female head 700 and the cable terminal 800, the connector female head 700 is matched with the connector male head, therefore, each conductive sheet 410 is independent of each other, each conductive sheet 410 can be in contact with the connector female head 700 respectively, and each conductive sheet 410 can be in contact with the cable terminal 800 respectively, so that the interface terminal 400 and the connector female head 700 are in sufficient contact, and the interface terminal 400 and the cable terminal 800 are in sufficient contact, preventing poor contact, which can improve the electrical performance of the interface terminal 400 and improve the current quality between the connector female head 700 and the cable terminal 800, and then the two grounding terminals 300 are arranged on the two sides of the shell 100 respectively, which can prevent the grounding function from being damaged due to being directly hit, and can improve the safety of the connector male head.

[0040] In addition, referring to Figure 5 , Figure 5 An optional structure schematic diagram of the insulator provided by the embodiment of the application, in some embodiments of the application, the opening of the first mounting groove 220 is arranged on the first side surface 240 of the insulator 200, and the opening of the second mounting groove 230 is arranged on the second side surface 250 of the insulator 200, the second side surface 250 is opposite to the first side surface 240.

[0041] It should be noted that the two interface terminals 400 are installed through the opening of the first mounting groove 220 and the opening of the second mounting groove 230 respectively, which is equivalent to rotating one of the interface terminals 400 by 180 degrees, since the interface terminal 400 is stacked by the conductive sheet 410, therefore, it is not necessary to make a mirror image version of the interface terminal 400.

[0042] Among them, the first mounting groove 220 and the second mounting groove 230 are also provided with openings for connecting the cable terminal 800 to the interface terminal 400.

[0043] Based on this, the opening of the first mounting groove 220 is arranged on the first side surface 240 of the insulator 200, and the opening of the second mounting groove 230 is arranged on the second side surface 250 of the insulator 200, which is opposite to the first side surface 240, so as to be adapted to the structure of the interface terminal 400, so that it is not necessary to make a mirror image version of the interface terminal 400, thereby reducing the production cost of the connector male head.

[0044] In addition, referring again to Figure 3 and Figure 5 , in some embodiments of the present application, the first side surface 240 is provided with a first hollow area 241 in communication with the second mounting groove 230, and the second side surface 250 is provided with a second hollow area 251 in communication with the first mounting groove 220.

[0045] In the projection of the insulator 200 in the length direction of the fixing column 420, two first hollow areas 241 closest to the first contact part 411 are in communication, and similarly, the second hollow areas 251 are also in communication, which will not be described here in the embodiments of the present disclosure.

[0046] It should be noted that the interface terminal 400 is provided with a plurality of protrusions, and the mounting groove is provided with a plurality of recesses 260 matched with the protrusions of the interface terminal 400, and the recesses 260 are distributed on both sides of the mounting position of the interface terminal 400 in the mounting groove.

[0047] In the embodiments of the present disclosure, the number of protrusions of the interface terminal 400 can be three, and the number of recesses 260 on one side of the mounting groove can be seven, which will not be limited here.

[0048] It can be understood that the interface terminal 400 can be clamped in different recesses 260, so as to adjust the position of the interface terminal 400 in the insulator 200.

[0049] Based on this, the first hollow area 241 and the second hollow area 251 can both increase the contact area of the interface terminal 400 with air, so as to improve the heat dissipation efficiency of the connector male head, and improve the safety and electrical performance of the connector male head.

[0050] In addition, referring again to Figures 1 to 3 , in some embodiments of the present application, the grounding terminal 300 includes a support plate 310, a first elastic arm 320 and a second elastic arm 330, the first elastic arm 320 is arranged on one side of the support plate 310, and the root of the second elastic arm 330 is connected to one end of the support plate 310 and has an included angle.

[0051] It should be noted that the support plate 310, the first elastic arm 320 and the second elastic arm 330 can be conductive, and after the connector male head and the connector female head 700 are connected, the support plate 310, the first elastic arm 320 and the second elastic arm 330 are connected with the ground end of the connector female head 700.

[0052] The support plate 310 is provided with a fixing hole 311, and the fixing hole 311 is used to fix the grounding terminal 300 on the shell 100.

[0053] Specifically, the number of the first elastic arm 320 of one of the grounding terminals 300 is two, and the number of the fixing hole 311 is one, and the number of the first elastic arm 320 of the other grounding terminal 300 is one, and the number of the fixing hole 311 is two.

[0054] The included angle between the root of the second elastic arm 330 and the support plate 310 is 90 degrees.

[0055] Therefore, the grounding terminal 300 comprises the support plate 310, the first elastic arm 320 and the second elastic arm 330, the first elastic arm 320 is arranged on one side of the support plate 310, the root of the second elastic arm 330 is connected with one end of the support plate 310 and has an included angle, the first elastic arm 320 can adapt the grounding terminal 300 to different surface shapes or uneven conditions, ensure close contact, and the second elastic arm 330 can absorb mechanical stress in installation or use, reduce the influence of vibration or impact, and improve the stability of grounding connection together.

[0056] In addition, referring again to Figures 1 to 3 , and referring to Figure 7 , Figure 7 An optional structural schematic diagram of the shell provided by the embodiment of the application, in some embodiments of the application, the two sides of the shell 100 are provided with the first buckle 110, and the grounding terminal 300 is further provided with the first clamping groove 340, the plane where the first clamping groove 340 is located is connected with the other end of the support plate 310 and has an included angle, and the first clamping groove 340 is used to clamp the first buckle 110.

[0057] The included angle between the plane where the first clamping groove 340 is located and the support plate 310 is 90 degrees.

[0058] It should be noted that the second elastic arm 330 and the first buckle 110 are located on opposite sides of the support plate 310.

[0059] Based on this, the two sides of the shell 100 are provided with first buckles 110, and the grounding terminal 300 is also provided with first clamping grooves 340, the plane where the first clamping grooves 340 are located is connected with the other end of the supporting plate 310 and has an included angle, and the first clamping grooves 340 are used for clamping the first buckles 110, so that the grounding terminal 300 is more stable, the resistance of the grounding terminal 300 to mechanical stress can be improved, the grounding terminal 300 is not easy to fall off, and the reliability of the grounding terminal 300 is improved.

[0060] In addition, referring again to Figures 1 to 3 , in some embodiments of the application, the number of second elastic arms 330 is multiple, and each second elastic arm 330 is distributed side by side.

[0061] It should be noted that the shell 100 is provided with a groove for accommodating the second elastic arm 330, so that the second elastic arm 330 is tightly matched with the shell 100, the overall structural strength is improved, and the second elastic arm 330 is prevented from being deformed or displaced due to external force.

[0062] Based on this, the number of second elastic arms 330 is multiple, and each second elastic arm 330 is distributed side by side, which can increase the contact area, reduce the contact resistance, improve the efficiency of current conduction to the ground, and in addition, multiple second elastic arms 330 can also provide redundant contact points, so that even if an individual second elastic arm 330 fails, other second elastic arms 330 can still maintain connection, ensuring the stability of the grounding function.

[0063] In addition, referring again to Figures 1 to 3 , in some embodiments of the application, two signal terminals 500 are also included, and the two signal terminals 500 are arranged at the bottom of the shell 100, and the signal terminal 500 is used for connecting the connector female head 700 and the signal line (not shown in the figure).

[0064] Among them, the two signal terminals 500 are symmetrical to each other.

[0065] Among them, a partition plate 600 is arranged between the interface terminal 400 and the signal terminal 500, and through physical separation, the mutual influence between the signal terminal 500 and the interface terminal 400 which may generate large electromagnetic interference can be reduced.

[0066] Based on this, the two signal terminals 500 are arranged at the bottom of the shell 100, and the signal terminal 500 is used for connecting the connector female head 700 and the signal line, thereby providing the function of signal transmission for the connector male head.

[0067] In addition, referring again to Figure 3 , and referring to Figure 6 , Figure 6An optional structure of the signal terminal is provided in the embodiments of the present application. In some embodiments of the present application, the signal terminal 500 comprises a third elastic arm 510, a fourth elastic arm 520 and a first connecting portion 530. The third elastic arm 510 is connected to one end of the first connecting portion 530, and the fourth elastic arm 520 is connected to the other end of the first connecting portion 530. The third elastic arm 510 is used for connecting the connector female head 700, and the fourth elastic arm 520 is used for connecting the signal line.

[0068] In some embodiments of the present application, the third elastic arm 510 of one of the signal terminals 500 is bent to form a protruding portion away from the other signal terminal 500. The protruding portion is connected to the connector female head 700 in a point contact manner.

[0069] In some embodiments of the present application, the fourth elastic arm 520 of one of the signal terminals 500 is provided with a V-shaped groove on the side close to the other signal terminal 500, and the first connecting portion 530 of one of the signal terminals 500 is provided with a groove-shaped groove on the side close to the other signal terminal 500. The signal line can be embedded in the V-shaped groove and the groove-shaped groove and welded to the signal terminal 500.

[0070] Therefore, the signal terminal 500 comprises the third elastic arm 510, the fourth elastic arm 520 and the first connecting portion 530. The third elastic arm 510 is connected to one end of the first connecting portion 530, and the fourth elastic arm 520 is connected to the other end of the first connecting portion 530. The third elastic arm 510 is used for connecting the connector female head 700, and the fourth elastic arm 520 is used for connecting the signal line. The third elastic arm 510 can make the signal terminal 500 adapt to different surface shapes or uneven conditions, ensure close contact, and improve the stability of the transmission signal through the fourth elastic arm 520 and the first connecting portion 530.

[0071] In addition, referring back to Figure 3 and Figure 6 , in some embodiments of the present application, the first connecting portion 530 of one of the signal terminals 500 is provided with a fifth elastic arm 540 on the side away from the other signal terminal 500. The fifth elastic arm 540 is used for connecting the connector female head 700.

[0072] In some embodiments of the present application, one end of the fifth elastic arm 540 connected to the first connecting portion 530 is close to the third elastic arm 510, and the other end of the fifth elastic arm 540 is away from the third elastic arm 510.

[0073] Therefore, the first connecting portion 530 of one of the signal terminals 500 is provided with the fifth elastic arm 540 on the side away from the other signal terminal 500. The fifth elastic arm 540 is used for connecting the connector female head 700, which can improve the connection stability of the signal terminal 500.

[0074] In addition, referring back to Figure 1 , Figure 5 andFigure 7 In some embodiments of the present application, the two sides of the shell 100 are respectively provided with second clamping grooves 120, and the two sides of the insulator 200 are respectively provided with second buckles 210 for clamping the second clamping grooves 120.

[0075] Based on this, the two sides of the shell 100 are respectively provided with second clamping grooves 120, and the two sides of the insulator 200 are respectively provided with second buckles 210 for clamping the second clamping grooves 120, so that the grounding terminal 300 is more stable, the resistance of the grounding terminal 300 to mechanical stress can be improved, the grounding terminal 300 is not easy to fall off, and the reliability of the grounding terminal 300 is improved.

[0076] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. A connector male, characterized by, The utility model relates to a connector, which comprises: a housing; an insulator arranged inside the housing, the insulator being provided with first mounting slots and second mounting slots arranged side by side; two ground terminals, the two ground terminals being arranged on two sides of the housing respectively; two interface terminals, one of the interface terminals being mounted in the first mounting slots and the other being mounted in the second mounting slots, the interface terminals comprising a plurality of conductive pieces stacked in sequence, each of the conductive pieces being used for connecting a female connector and a cable terminal, and the female connector being matched with a male connector.

2. The connector male according to claim 1, characterized in that, The opening of the first mounting slots is arranged on a first side of the insulator, and the opening of the second mounting slots is arranged on a second side of the insulator, the second side being opposite to the first side.

3. The connector male according to claim 2, characterized in that, The first side is provided with a first hollow area communicating with the second mounting slots, and the second side is provided with a second hollow area communicating with the first mounting slots.

4. The connector male according to claim 1, characterized in that, The ground terminals comprise a support plate, a first elastic arm arranged on one side of the support plate, and a second elastic arm, the fourth elastic arm of the second elastic arm being connected to one end of the support plate and having an included angle.

5. The connector male according to claim 4, characterized in that, The housing is provided with first buckles on two sides, and the ground terminals are further provided with first clamping grooves, the plane of the first clamping grooves being connected to the other end of the support plate and having an included angle, and the first clamping grooves being used for clamping the first buckles.

6. The connector male according to claim 4, characterized in that, The number of the second elastic arms is plural, and each of the second elastic arms is arranged side by side.

7. The connector male according to claim 1, characterized in that, The utility model further comprises two signal terminals, the two signal terminals being arranged on the bottom of the housing, and the signal terminals being used for connecting the female connector and a signal line.

8. The connector male according to claim 7, characterized in that, The signal terminals comprise a third elastic arm, a fourth elastic arm, and a first connecting part, the third elastic arm being connected to one end of the first connecting part, the fourth elastic arm being connected to the other end of the first connecting part, the third elastic arm being used for connecting the female connector, and the fourth elastic arm being used for connecting the signal line.

9. The connector male according to claim 8, characterized in that, The first connecting part of one of the signal terminals is provided with a fifth elastic arm away from one side of the other signal terminal, and the fifth elastic arm is used for connecting the female connector.

10. The connector male according to claim 1, characterized in that, The housing is provided with second clamping grooves on two sides respectively, and the insulator is provided with second buckles on two sides respectively, the second buckles being used for clamping the second clamping grooves.

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