Fence type wiring electric connector

Abstract

The utility model relates to the technical field of electric connectors, and discloses a fence type wiring electric connector, which comprises an insulating shell with a first mounting area and a second mounting area, a screw assembly with an upper-layer screw and a lower-layer screw and a terminal assembly, the terminal assembly comprises a first terminal and a second terminal, the upper-layer screw is in threaded connection with the first terminal, and the lower-layer screw is in threaded connection with the second terminal. The lower-layer screw is in threaded connection with the second terminals, the first terminals and the second terminals are arranged at intervals, the first terminals and the second terminals are provided with first plug-in ends and second plug-in ends respectively, and the first plug-in ends are distributed in a staggered mode in the length direction. According to the utility model, through cooperation among the insulating housing, the first terminals, the second terminals and the screw assembly, the first plug-in mounting ends of the first terminals are distributed in a staggered manner, so that compared with a traditional linear arrangement manner, the plug-in mounting structure can tolerate larger destructive force, and a product is not liable to fail in a more severe environment such as a vibration environment; therefore, the tolerance is improved to a certain extent, and the failure probability is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, and particularly to a fence-type wiring electrical connector. Background Art

[0002] As a kind of wiring terminal, an electrical connector is an electronic component used for circuit connection. In recent years, with the increasing degree of industrial automation, electrical connectors are used in electrical equipment such as automobiles and construction machinery to connect various wire materials such as power lines and signal lines.

[0003] Fence-type wiring electrical connectors are widely used in various intelligent electricity meters and distribution terminals due to their reliability, safety and large current-carrying capacity, and their reliability is directly related to the safety performance of products. In order to increase the quantity and reasonably arrange the wiring terminals, fence-type wiring electrical connectors all have terminal structures. Many usage environments of fence-type wiring electrical connectors, such as being applied to automobiles, will generate vibrations in such usage environments. The traditional terminal arrangement is usually in a straight line arrangement. The installation method of the straight line arrangement will cause the connection between terminals to become loose, fall off or have poor contact due to vibrations. Therefore, the installation method of the straight line arrangement has defects. Summary of the Utility Model

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: to provide a fence-type wiring electrical connector to solve the problem that the straight-line arrangement of terminals is prone to failure.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a fence-type wiring electrical connector, which includes an insulating housing having a first installation area and a second installation area, a screw assembly having an upper-layer screw and a lower-layer screw, and a terminal assembly. The terminal assembly includes a first terminal inserted into the first installation area along a plugging direction and a second terminal inserted into the second installation area along the plugging direction. The upper-layer screw is screwed to the first terminal, and the lower-layer screw is screwed to the second terminal for connecting conductive elements. Both the first terminal and the second terminal are provided in multiple numbers and are respectively arranged at intervals along the length direction to form a double-row structure. The first terminal and the second terminal respectively have a first plugging end and a second plugging end inserted into the insulating housing. The first plugging ends are distributed in a staggered manner along the length direction, and can withstand greater destructive forces compared with the traditional straight-line arrangement, reducing the probability of product failure in harsh environments such as vibration environments.

[0006] Further, at positions corresponding to the respective first terminals in the first installation area and at positions corresponding to the respective second terminals on the first side of the second installation area, retaining portions are formed extending along the insertion direction. The side of the retaining portion facing the insulating housing and the adjacent side are both open. The retaining portions on the first installation area enclose a first installation space, and the retaining portions on the second installation area enclose a second installation space; a first insertion cavity that penetrates the first installation space and is distributed with a lengthwise offset is formed on the first installation area along the insertion direction. Each of the first terminals and the upper-layer screws are respectively arranged in each first installation space, and the first insertion end is inserted into the first insertion cavity; a second insertion cavity that penetrates the second installation space and is distributed along the length direction is formed on the second installation area along the insertion direction. Each of the second terminals and the lower-layer screws are respectively arranged in each second installation space, and the second insertion end is inserted into the second insertion cavity to separate the respective first terminals and second terminals, reducing the potential difference and interference between the terminals, etc.

[0007] Further, a glue-reducing groove penetrating the second side is formed on the first installation area along the insertion direction to reduce the material consumption.

[0008] Further, the glue-reducing groove faces each first installation space along the insertion direction, and the first insertion cavity communicates with the glue-reducing groove along the insertion direction. A reinforcing portion protrudes from the inner side wall of the glue-reducing groove in a direction perpendicular to the insertion direction. A T-shaped groove that penetrates the reinforcing portion along the insertion direction and communicates with the first insertion cavity is formed in the reinforcing portion. The first insertion end sequentially passes through the first insertion cavity and the T-shaped groove to extend out of the second side, so as to increase the contact area between the first insertion end of the first terminal and the insulating housing, increase the support for the first insertion end, and improve the stability.

[0009] Further, the upper-layer screws and the lower-layer screws both include a pressing plate supported on a supporting surface of the first installation space or the second installation space, a screw screwed on the pressing plate and the corresponding terminal, an elastic washer sleeved on the screw and located between the pressing plate and the screw head, and a nut screwed on the screw. Avoidance grooves for the nut to movably pass through are correspondingly formed on the supporting surfaces of the first installation space and the second installation space, so that the first terminals and the second terminals can be attached to the supporting surface to maintain stability.

[0010] Furthermore, the first terminal includes a first connection portion supported on the support surface of the first installation space and threadedly engaged with the screw, and a first long pin and a first short pin that are bent from opposite sides of the first connection portion and extend toward the second side along the insertion direction. The first long pin is defined as the first insertion end for insertion into the first insertion cavity and the T-shaped groove. A third insertion cavity for the first short pin to penetrate therein is recessed in the support surface of the first installation space. The second terminal includes a second connection portion supported on the support surface of the second installation space and threadedly engaged with the screw, and a second long pin and a second short pin that are bent from opposite sides of the second connection portion and extend toward the second side along the insertion direction. The second long pin is defined as the second insertion end for insertion into the second insertion cavity. A fourth insertion cavity for the second short pin to penetrate therein is recessed in the support surface of the second installation space, thereby further increasing the contact area between the first terminal and the second terminal and the insulating housing and enhancing the fastening property. Each of the first connection portions and each of the second connection portions are misaligned in the width direction, and the first long pins and the first short pins of some of the first terminals are bent and extended from both sides in the length direction of the first connection portion, while the first long pins and the first short pins of the other part of the first terminals are bent and extended from both sides in the width direction of the first connection portion. The first insertion cavity and the third insertion cavity are both arranged corresponding to the first long pin and the first short pin, so that the first insertion ends are misaligned, and the gripping force is enhanced to be able to withstand harsh environments.

[0011] Furthermore, barbs that are tightly fitted with the insulating housing are provided on the sides of the first long pin, the first short pin, the second long pin, and the second short pin, so as to be tightly fitted with the insulating housing when the first terminal is installed in the first installation space and the second terminal is installed in the second installation space, making the connection more firm.

[0012] Furthermore, the ends of each of the first short pins and the second short pins are bent inward and each has a bent foot, so as to limit the large-amplitude shaking of the first short pins and the second short pins to a certain extent.

[0013] Furthermore, each of the first long pin and the second long pin includes a first laminated sheet connected to the corresponding connection portion and a second laminated sheet that is bent from one lateral side of the first laminated sheet and folded onto the first laminated sheet by stamping, so as to be tightly fitted between the first long pin and the second long pin and the insulating housing and enhance the firmness.

[0014] Further, the terminal assembly further includes a short - circuit piece. The short - circuit piece has two conducting ends respectively connected to any two second terminals, and a contact end connected to the two conducting ends and bent along the insertion direction from the two conducting ends to abut against the insulating housing. The two conducting ends are spaced apart and clamped between the second terminal and the corresponding upper - layer screw. An elastic arm that elastically abuts against the enclosure portion is formed by bending at a position of the contact end facing the enclosure portion to ensure the safety and stability of the circuit.

[0015] The fence - type wiring electrical connector of the present utility model has at least the following beneficial effects: Through the cooperation among the insulating housing, the first terminal, the second terminal and the screw assembly, the first insertion ends of the first terminals are arranged in a staggered manner. Compared with the traditional linear arrangement method, it can withstand greater destructive forces, making the product less likely to fail in a more severe environment such as a vibrating environment, thereby improving the tolerance to a certain extent and reducing the failure probability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the fence - type wiring electrical connector of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the fence - type wiring electrical connector of the present utility model from another angle;

[0019] Figure 3 is a side cross - section of the fence - type wiring electrical connector of the present utility model Figure 1 ;

[0020] Figure 4 is a side cross - section of the fence - type wiring electrical connector of the present utility model Figure 2 ;

[0021] Figure 5 is a schematic distribution diagram of the cooperation between the terminal assembly and the screw assembly of the present utility model;

[0022] Figure 6 is an exploded view of the terminal assembly and the screw assembly of the present utility model.

[0023] The meanings of the reference numerals in the drawings are as follows:

[0024] Insulating housing - 1; First installation area - 11; Second installation area - 12; Enclosure part - 13; First installation space - 14; Glue - reducing groove - 15; Reinforcement part - 16; First insertion cavity - 171; T - shaped groove - 172; Second insertion cavity - 173; Third insertion cavity - 174; Fourth insertion cavity - 175; Second installation space - 18; First side - 191; Second side - 192;

[0025] Terminal assembly - 2; First terminal - 21; First connection part - 211; First long pin - 212; First short pin - 213; First perforation - 214; Second terminal - 22; Second connection part - 221; Second long pin - 222; Second short pin - 223; Second perforation - 224; Barbs - 2a; First lamination - 2b; Second lamination - 2c; Short - circuit piece - 23; Conductive end - 231; Abutting end - 232; Elastic arm - 233;

[0026] Screw assembly - 3; Upper - layer screw - 3a; Lower - layer screw - 3b; Pressing plate - 31; Screw - 32; Elastic washer - 33; Nut - 34. Specific embodiments

[0027] The present utility model will be further described below with reference to the accompanying drawings.

[0028] As Figures 1 to 6 shown, the fence - type wiring electrical connector of the present utility model includes an insulating housing 1 having a first installation area 11 and a second installation area 12, a terminal assembly 2 having a first terminal 21 installed on the first installation area 11 and a second terminal 22 installed on the second installation area 12, and a screw assembly 3 having an upper - layer screw 3a installed on the first terminal 21 and a lower - layer screw 3b installed on the second terminal 22. The insulating housing 1 is used to protect the terminal assembly 2, and the screw assembly 3 cooperates with the terminal assembly 2 to fix an external conductive element such as a wire by clamping, so as to realize the conduction between the terminal assembly 2 and the external conductive structure.

[0029] As Figures 1 to 4As shown, in this embodiment, the first installation area 11 and the second installation area 12 of the insulating housing 1 are arranged in a stepped shape, and the first installation area 11 is arranged higher than the second installation area 12. At positions corresponding to each first terminal 21 on the first side 191 of the first installation area 11, a retaining portion 13 is formed extending along the insertion direction. Similarly, at positions corresponding to each second terminal 22 on the first side 191 of the second installation area 12, a retaining portion 13 is also formed extending along the insertion direction. The inside of the retaining portion 13 is hollow and is open on one side facing the insulating housing 1, that is, on the side of the retaining portion 13 away from the first side 191 of the insulating housing 1 and one of its adjacent sides. Preferably, the first installation area 11 is open on the side facing the second installation area 12 along the width direction, and the second installation area 12 is open on the side away from the first installation area 11 along the width direction to facilitate the connection and arrangement of external conductive elements. Each retaining portion 13 on the first installation area 11 encloses a first installation space 14, and each first terminal 21 and each upper layer screw 3a can be respectively inserted into each first installation space 14. A first insertion cavity 171 is formed on the first installation area 11 along the insertion direction, penetrating the first installation space 14 and being staggered in the length direction, for the first terminal 21 to pass through to ensure the connection and cooperation between the first terminal 21 and the insulating housing 1. A glue-reducing groove 15 is formed on the first installation area 11 along the insertion direction, penetrating the second side 192. The glue-reducing groove 15 has a square structure and is directly opposite to each first installation space 14 along the insertion direction. The glue-reducing groove 15 can be one or a plurality of interconnected ones. The first insertion cavity 171 is connected to the glue-reducing groove 15 along the insertion direction, so that after the first terminal 21 passes through the first insertion cavity 171, it can penetrate into the glue-reducing groove 15 and cooperate with conductive elements such as circuit boards, wires, and docking terminals. On the inner side wall of the glue-reducing groove 15, a reinforcing portion 16 is convexly provided along a direction perpendicular to the insertion direction, corresponding to and directly opposite to the first insertion cavity 171 along the insertion direction. The first insertion cavity 171 penetrates the reinforcing portion 16 along the insertion direction. On the side of the reinforcing portion 16 facing inward, the inner cavity of the reinforcing portion 16 is penetrated inward along a direction perpendicular to the insertion direction to form a T-shaped groove 172 communicating with the first insertion cavity 171 inside the reinforcing portion 16. The first terminal 21 sequentially passes through the first insertion cavity 171 and the T-shaped groove 172 to penetrate outside the second side 192, and the end penetrating outside the T-shaped groove 172 can be welded to the circuit board.

[0030] In the content defined in this embodiment, each enclosure portion 13 on the second installation area 12 encloses to form a second installation space 18. The first installation spaces 14 and the second installation spaces 18 are staggeredly distributed in the width direction. Each second terminal 22 and each lower-layer screw 3b can be respectively inserted into the second installation space 18, that is, one second installation space 18 is installed with one second terminal 22 and one lower-layer screw 3b, thereby improving the tolerance and gripping force between the first terminal 21, the second terminal 22 and the insulating housing 1. A second insertion cavity 173 that penetrates the second installation space 18 and is distributed along the length direction is formed on the second installation area 12 along the insertion direction. The second insertion cavity 173 penetrates the second side 192 of the insulating housing 1 along the insertion direction, thereby forming a double-row arrangement, and enabling the second terminal 22 to pass through the insulating housing 1 when installed in the second installation space 18 for welding with the circuit board. It should be noted that the second side 192 of the insulating housing 1 is a plane so as to be able to fit with the circuit board, facilitating the welding of the first terminal 21 and the second terminal 22 after passing through the insulating housing 1. In the present utility model, the height direction of the insulating housing 1 is defined as the insertion direction, the length direction in the present utility model refers to the direction where the length of the insulating housing 1 is located, the width direction in the present utility model refers to the width direction of the insulating housing 1, and the first installation area 11 and the second installation area 12 are distributed along the width direction.

[0031] As Figures 1 to 6 shown, in this embodiment, the terminal assembly 2 includes a first terminal 21, a second terminal 22 and a short-circuit piece 23. The first terminal 21 and the second terminal 22 of the terminal assembly 2 are both made of metal conductive materials and are respectively provided in multiple numbers corresponding to the first installation space 14 and the second installation space 18 one by one. The first terminal 21 has a first insertion end and can be inserted into the corresponding first insertion cavity 171 and T-shaped groove 172 on the first installation area 11 along the insertion direction. The second terminal 22 has a second insertion end and can be inserted into the corresponding second insertion cavity 173 on the second installation area 12 along the insertion direction, so that the first terminal 21 and the second terminal 22 are both spaced apart along the length direction and cooperate with the insulating housing 1. The short-circuit piece 23 is used to connect any two second terminals 22 to protect the circuit.

[0032] In the content defined in this embodiment, the first terminal 21 includes a first connecting portion 211 supported on the supporting surface of the first installation space 14 and threadedly engaged with the upper layer screw 3a, and a first long pin 212 and a first short pin 213 that are respectively bent from opposite sides of the first connecting portion 211 and extend toward the second side 192 of the insulating housing 1 along the insertion direction. The first connecting portion 211 has a square sheet-like structure and is adapted to the supporting surface. At the midpoint position of the first connecting portion 211, a first through hole 214 for the upper layer screw 3a to pass through is formed along the insertion direction, so that the upper layer screw 3a can be fixed on the first connecting portion 211 through the first through hole 214. The first long pin 212 is defined as a first insertion end and is inserted into the first insertion cavity 171 and the T-shaped groove 172. The first long pin 212 includes a first insertion section adapted to the first insertion cavity 171 and a second insertion section adapted to the T-shaped groove 172. The width of the first insertion section is greater than the width of the second insertion section, and the widths of the first insertion cavity 171 and the T-shaped groove 172 are adapted accordingly, so that the first insertion section cannot penetrate into the T-shaped groove 172 to limit the insertion depth of the first long pin 212. In order to facilitate the installation of the first short pin 213, a third insertion cavity 174 for the first short pin 213 to penetrate into is recessed on the supporting surface of the first installation space 14. The third insertion cavity 174 and the first insertion cavity 171 are arranged on opposite sides of the supporting surface, so that both the first long pin 212 and the first short pin 213 can be inserted into the insulating housing 1, so that the first connecting portion 211 can be supported on the supporting surface to be in close contact with and support the insulating housing 1. The width of the first short pin 213 is the same as the width of the first insertion section and is shorter than the first insertion section. After installation, the first short pin 213 improves the gripping force between the first terminal 21 and the insulating housing 1 and improves the stability. It should be noted that in order to stagger the first insertion ends of the first terminals 21 in the length direction, the first long pins 212 and the first short pins 213 of some of the first terminals 21 can be bent and extended from both sides of the first connecting portion 211 along the length direction, and the first long pins 212 and the first short pins 213 of the remaining first terminals 21 can be bent and extended from both sides of the first connecting portion 211 along the width direction. The parts extended from the length direction can be arranged on one side, and the parts extended from the width direction can be arranged on one side. The corresponding first insertion cavities 171 are arranged according to the first long pins 212, and the corresponding third insertion cavities 174 are arranged according to the first short pins 213.

[0033] In this embodiment, the second terminal 22 includes a second connecting portion 221 supported on the supporting surface of the second installation space 18 and threadedly engaged with the lower layer screw 3b, and a second long pin 222 and a second short pin 223 that are bent from opposite sides of the second connecting portion 221 and extend toward the second side 192 along the insertion direction. Each first connecting portion 211 and each second connecting portion 221 are staggered in the width direction. The second connecting portion 221 is also in the shape of a square sheet and is adapted to the supporting surface in the second installation space 18 so as to be supported on the supporting surface in the second installation space 18. A second through hole 224 for the lower layer screw 3b to pass through is formed through the center of the second connecting portion 221 in the insertion direction, so that the lower layer screw 3b can be installed on the second connecting portion 221 through the second through hole 224. The second long pin 222 is longer than the second short pin 223, and the second long pin 222 is defined as the second insertion end to be inserted into the second insertion cavity 173. The second long pin 222 includes a third insertion section bent and extended from the second connecting portion 221 and a fourth insertion section extending from the third insertion section toward the side away from the second connecting portion 221. The width of the third insertion section is greater than that of the fourth insertion section, and the corresponding second insertion cavity 173 is adaptively provided with two widths, one wide and one narrow, to limit the insertion depth of the second long pin 222, and the depth of the second insertion cavity 173 is less than the length of the second long pin 222, so that the end of the second long pin 222 away from the second connecting portion 221 penetrates out of the second insertion cavity 173 for soldering with the circuit board. To facilitate the installation of the second short pin 223, a fourth insertion cavity 175 for the second short pin 223 to penetrate into is recessed in the supporting surface of the second installation space 18, so that both the second short pin 223 and the second long pin 222 can be inserted into the insulating housing 1, and the second connecting portion 221 can support each other on the supporting surface, improving the fastening degree and stability between the second terminal 22 and the insulating housing 1.

[0034] In order to prevent the first long pin 212, the first short pin 213, the second long pin 222 and the second short pin 223 from easily detaching from the insulating housing 1 in a vibrating environment, barbs 2a that are tightly fitted with the insulating housing 1 are provided on the sides of the first long pin 212, the first short pin 213, the second long pin 222 and the second short pin 223. The barbs 2a are symmetrically arranged on the opposite two sides of the corresponding pins and the maximum width is slightly greater than the width of the corresponding insertion cavity, so that the barbs 2a can abut against the inner wall when the first terminal 21 and the second terminal 22 are inserted into the insulating housing 1, and are clamped in the corresponding first insertion cavity 171 or second insertion cavity 173. The ends of each first short pin 213 and each second short pin 223 are bent inward and each has a bent foot, so as to increase the thickness of the first short pin 213 and the second short pin 223 as a whole, reduce the possibility of the first short pin 213 shaking in the width direction of the first insertion cavity 171, reduce the possibility of the second short pin 223 shaking in the width direction of the second insertion cavity 173, and at the same time reduce the contact between the first short pin 213 and the second short pin 223 and the insulating housing 1 to reduce wear. The second insertion section of each first long pin 212 and the fourth insertion section of each second long pin 222 each include a first laminated sheet 2b and a second laminated sheet 2c that is folded onto the first laminated sheet 2b by stamping after being bent from one lateral side of the first laminated sheet 2b, successfully increasing the thickness of the first insertion end and the second insertion end. At the same time, there is a gap between the integrally stamped first laminated sheet 2b and the second laminated sheet 2c and they can be stretched, and can abut against the inner wall of the insulating housing 1 when passing through the insulating housing 1, so as to prevent the first terminal 21 and the second terminal 22 from shaking and improve the fastening property.

[0035] In the content defined in this embodiment, the short-circuit piece 23 has two conducting ends 231 respectively connected to any two second terminals 22 and abutting ends 232 connected to the two conducting ends 231 and bent from the two conducting ends 231 along the plugging direction to abut against the insulating housing 1. The two conducting ends 231 are spaced and clamped between the two second terminals 22 and the corresponding upper screws 3a, respectively, and the abutting ends 232 extend to the outer wall of the insulating housing 1 and abut against the outer wall of the insulating housing 1, so that the short-circuit piece 23 can effectively prevent current leakage and ensure the safety and stability of the circuit. A U-shaped slot is opened on one end of each conducting end 231 away from the abutting end 232, and the U-shaped slot can be mounted on the screw 32. Since the two conducting ends 231 are respectively connected to two different second terminals 22, the gap between the two conducting ends 231 faces the enclosure 13 between the corresponding two second installation spaces 18. In order to improve the stability between the short-circuit piece 23 and the insulating housing 1, the abutting end 232 is bent at a position opposite to the enclosure 13 to form an elastic arm 233 that elastically presses against the enclosure 13. Specifically, the elastic arm 233 extends obliquely from the abutting end 232 along the width direction toward one side of the enclosure 13 until it can press against the enclosure 13 when the conducting end 231 is connected to the second terminal 22, and then the elastic arm 233 continues to bend and continues to extend along the plug-in direction toward the side away from the abutting end 232 to elastically press against the enclosure 13, and finally the elastic arm 233 continues to bend and tilt toward the side away from the second installation space 18 to facilitate the pulling of the elastic arm 233 when disassembly is required.

[0036] In this embodiment, the number of upper-layer screws 3a corresponds one-to-one to the number of first terminals 21, and the number of lower-layer screws 3b corresponds one-to-one to the number of second terminals 22. The upper-layer screws 3a and the lower-layer screws 3b are identical in structure and size. Both the upper-layer screws 3a and the lower-layer screws 3b include a pressing plate 31 supported on a supporting surface of the first installation space 14 or the second installation space 18, a screw 32 screwed on the pressing plate 31 and the corresponding terminal, an elastic washer 33 sleeved on the screw 32 and located between the pressing plate 31 and the head of the screw 32, and a nut 34 screwed on the screw 32. The pressing plate 31 of the upper-layer screw 3a is sleeved on the screw 32, and the screw 32 is screwed in the first through hole 214 and fixed by the nut 34 so that the pressing plate 31 presses the first connecting portion 211. The pressing plate 31 of the lower-layer screw 3b is sleeved on the screw 32, and the screw 32 is screwed in the second through hole 224 and fixed by the nut 34 so that the pressing plate 31 presses the second connecting portion 221. The length and width of the pressing plate 31 are both smaller than the length and width of the first installation space 14 and the second installation space 18, so that the pressing plate 31 can be movably inserted into the first installation space 14 and the second installation space 18. Avoidance grooves for the nut 34 to movably pass through are correspondingly formed on the supporting surfaces of the first installation space 14 and the second installation space 18. The avoidance groove in the first installation space 14 can be independent of or communicated with the first insertion cavity 171 and the second insertion cavity 173, and the avoidance groove in the second installation space 18 can be independent of or communicated with the third insertion cavity 174 and the fourth insertion cavity 175, without affecting the use effect.

[0037] The working mode of one embodiment of the fence-type wiring electrical connector of the present utility model is as follows: First, twist the screw 32, wind the wire around the screw 32, and after installing the short circuit piece 23 between the corresponding pressing plate 31 and the second connecting portion 221, tighten the screw 32 and the nut 34 so that the first long pin 212 is inserted into the first insertion cavity 171, the first short pin 213 is inserted into the third insertion cavity 174, the second long pin 222 is inserted into the second insertion cavity 173, and the second short pin 223 is inserted into the fourth insertion cavity 175 until the first connecting portion 211 and the second connecting portion 221 are supported on the supporting surface. Then, weld the portions of the first long pin 212 and the second long pin 222 extending out of the insulating housing 1 onto the circuit board, and the assembly of the present utility model can be completed.

Claims

1. A barrier-type wiring electrical connector, comprising an insulating housing having a first mounting area and a second mounting area, a screw assembly having an upper screw and a lower screw, and a terminal assembly, characterized in that: The terminal assembly includes a first terminal inserted into a first mounting area along a plugging direction and a second terminal inserted into a second mounting area along the plugging direction, the upper screw is screwed to the first terminal, the lower screw is screwed to the second terminal, the first terminal and the second terminal are both provided in plurality and are arranged at intervals along the length direction, the first terminal and the second terminal respectively have a first plugging end and a second plugging end inserted into an insulating housing, and the first plugging end is staggered along the length direction.

2. The barrier type wiring electrical connector according to claim 1, characterized in that: The first installation area has a position corresponding to each first terminal and the second installation area has a position corresponding to each second terminal extending along the plugging direction. The side of the enclosure facing the insulating housing and the adjacent side are both open. The enclosures on the first installation area are formed to form a first installation space, and the enclosures on the second installation area are formed to form a second installation space. A first plug-in cavity is formed on the first installation area along the plug-in direction, penetrating the first installation space and staggered along the length direction, each of the first terminals and the upper screws are correspondingly arranged in each of the first installation spaces, and the first plug-in end is plugged into the first plug-in cavity; A second plug-in cavity is formed on the second installation area along the plug-in direction, which penetrates the second installation space and is distributed along the length direction. Each of the second terminals and each of the lower screws is correspondingly arranged in each of the second installation spaces, and the second plug-in end is plugged into the second plug-in cavity.

3. The barrier type wiring electrical connector according to claim 2, characterized in that: A glue reducing groove penetrating the second side is provided on the first installation area along the plugging direction.

4. The barrier type wiring electrical connector according to claim 3, characterized in that: The glue reduction groove is opposite to each first installation space along the plug-in direction, and the first plug-in cavity is connected to the glue reduction groove along the plug-in direction. A reinforcement part is protruded on the inner side wall of the glue reduction groove in a direction perpendicular to the plug-in direction. A T-shaped groove is formed in the reinforcement part, which passes through the reinforcement part along the plug-in direction and connects to the first plug-in cavity. The first plug-in end passes through the first plug-in cavity and the T-shaped groove in sequence to pass out of the second side.

5. The barrier type wiring electrical connector according to claim 4, characterized in that: The upper screws and the lower screws both include a pressure plate supported on a supporting surface of the first installation space or the second installation space, screws threaded on the pressure plate and the corresponding terminals, elastic washers sleeved on the screws and located between the pressure plate and the screw head, and nuts threaded on the screws. Avoidance grooves for the nuts to movably pass through are correspondingly opened on the supporting surfaces of the first installation space and the second installation space.

6. The barrier type wiring electrical connector according to claim 5, characterized in that: The first terminal comprises a first connection portion supported on a support surface of the first installation space and matched with a screw thread, and a first long pin and a first short pin respectively bent from opposite sides of the first connection portion and extending toward the second side along the plugging direction, the first long pin being defined as the first plugging end to be plugged into the first plugging cavity and the T-shaped slot, and a third plugging cavity for the first short pin to pass through is recessed on the support surface of the first installation space; The second terminal comprises a second connection portion supported on the support surface of the second installation space and matched with the screw thread, and a second long pin and a second short pin respectively bent from opposite sides of the second connection portion and extending toward the second side along the plugging direction, the second long pin being defined as the second plugging end to be plugged into the second plugging cavity, and a fourth plugging cavity for the second short pin to pass through is recessed on the support surface of the second installation space; The first connecting parts and the second connecting parts are staggered in the width direction, and the first long pins and the first short pins of a part of the first terminals are bent and extended from the two sides of the first connecting part along the length direction, and the first long pins and the first short pins of another part of the first terminals are bent and extended from the two sides of the first connecting part along the width direction, and the first plug-in cavity and the third plug-in cavity are both arranged corresponding to the first long pin and the first short pin.

7. The barrier type wiring electrical connector according to claim 6, characterized in that: The sides of the first long pin, the first short pin, the second long pin and the second short pin are all provided with barbs which are tightly matched with the insulating shell.

8. The barrier type wiring electrical connector according to claim 7, characterized in that: The ends of each of the first short pin and the second short pin are bent inwards and each has a bent foot.

9. The barrier type wiring electrical connector according to claim 7, characterized in that: The first long pin and the second long pin both include a first laminate connected to the corresponding connecting portion and a second laminate folded on the first laminate by stamping after being bent at one lateral side of the first laminate.

10. The barrier type wiring electrical connector according to claim 2, characterized in that: The terminal assembly also includes a short-circuit piece, which has two conductive ends respectively connected to any two second terminals and an abutting end connected to the two conductive ends and bent from the two conductive ends along the plug-in direction to abut against the insulating shell, the two conductive ends are spaced apart and clamped between the second terminals and the corresponding upper screws, and the abutting end is bent at a position corresponding to the enclosure to form an elastic arm that elastically abuts against the enclosure.

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