Anti-rotation, anti-disengagement and fool-proof enhanced terminal and connector

By designing anti-rotation, anti-detachment and anti-dust reinforced terminals in the wire harness connector, three elastic convex and guide groove structures are used, combining clamping parts and plastic clamping parts, the wiring harness connector is solved in the case of twisting and bending. Poor conduction and assembly error problems improve product performance and reliability.

CN222214517UActive Publication Date: 2024-12-20WUHAN TEPUSHENG SENSING TECH CO LTD
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Patent Information

Application Number
CN202420086086.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-12
Publication Date
2024-12-20
Estimated Expiration
2034-01-12

AI Technical Summary

Technical Problem

Existing wiring harness connectors are prone to breaking out under special circumstances such as twisting and bending, resulting in poor conduction and lack of effective prevention of misinstallation and identification points for production, resulting in high scrap rework rate and increased cost.

Method used

An anti-rotation, anti-detachment and anti-stupid reinforced terminal is designed, adopting three elastic convex and guide groove structures, combined with the clamping parts to ensure that the terminal does not fall out of rotation in the connector, and a plastic clamp is added to enhance the retention force. Provides three-point positioning and anti-fault recessing to avoid reverse installation.

Benefits of technology

It improves product performance and reliability, ensures stable conduction under twisting, bending, etc., reduces assembly error rate and scrap rate, and enhances pulling force and assembly recognition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of connectors, in particular to an anti-rotation, anti-drop and fool-proof enhanced terminal, which comprises a terminal box body and a wire pressing side connected with the terminal box body, the terminal box body is provided with an elastic protrusion, and the elastic protrusion is an elastic metal sheet on the terminal box body. The elastic protrusions are arranged on three side surfaces of the terminal box body, two side surfaces of the terminal box body are provided with protruding elastic structures, the bottom surface of the terminal box body is also provided with protruding elastic structures, and openings of the elastic protrusions are close to a wire pressing side. Compared with a terminal with three elastic protrusions designed in the prior art, the connector has the advantages that the corresponding guide groove and the clamping structure are arranged in the connector, it is guaranteed that the elastic protrusions of the terminal cannot be deformed and disengaged due to rotation of the terminal in the connector, and meanwhile the drawing force is enhanced; the product structure is optimized, and the product performance and reliability are improved; compared with the previous two elastic bulges, the three elastic bulges have the advantage that a physical fool-proof function is added, so that the three elastic bulges are easier to identify during assembly, and the badness caused by reverse assembly is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an anti-rotation, anti-dropping and anti-foolproof enhanced terminal and connector. Background Art

[0002] The wiring harness is an essential connection and conduction component for the energy storage, home appliances, automobile and other industries. It is a combination of metal wires, terminals, connectors (insulating rubber shells) and cables and wires. It is a connection between signals and power between carrying equipment. It is a connecting component that connects various electrical equipment in automotive circuits and energy storage circuits. It consists of insulating rubber shells, wiring terminals, wires and insulating wrapping materials.

[0003] Wiring harnesses for energy storage, automobiles, etc. play a role in signal and data transmission and power supply in the entire industrial chain. The system requires a more stable and reliable signal connection, which places higher requirements on the connection reliability between the connector (insulating rubber shell), terminal block, and wire in the wiring harness.

[0004] The fixing method of the terminal block and the connector (insulating plastic shell) is mostly two-point fixing, and the inside of the connector (insulating plastic shell) is mostly an annular protrusion anti-dropping structure without a guide structure, and there is no plastic clip for secondary anti-dropping on the connector (insulating plastic shell);

[0005] The wiring terminal and the connector (insulating rubber shell) are fixed at two points, and the inside of the connector (insulating rubber shell) is mostly a ring-shaped protrusion anti-drop structure, and the terminal will rotate in the connector (insulating rubber shell);

[0006] There is no guide structure inside the connector (insulating plastic shell), and the two clips (hooks) of the terminal are symmetrical structures, which cannot effectively prevent mis-assembly during production. There are no identification points when employees assemble, and it is easy to install it upside down, resulting in a high scrap and repair rate and increased costs.

[0007] There is no secondary anti-detachment plastic clip on the connector (insulating rubber shell). In order to meet the requirements of reliable conduction, fast charging and discharging, the wiring harness needs to have technical standards for large current and stable transmission. Most of the wires used are thicker. After the terminal blocks are assembled into the connector (insulating rubber shell), when they are installed into the control board or connected to it, there are abnormal installation conditions such as wire twisting and bending. If only relying on the holding force of the wire and the two spring-type snap (hook) terminals and the connector (insulating rubber shell), it is impossible to ensure that they will not fall out or have poor conduction in special circumstances such as twisting and bending.

[0008] Therefore, finding an anti-rotation, anti-detachment and anti-foolproof enhanced terminal and connector is a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content

[0009] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide an anti-rotation, anti-dropping and anti-foolproof enhanced terminal and connector.

[0010] The present application provides an anti-rotation, anti-dropout and anti-foolproof enhanced terminal, the terminal comprising a terminal box and a wire pressing side connected thereto;

[0011] The terminal box is provided with an elastic protrusion, which is an elastic metal sheet on the terminal box;

[0012] The elastic convexities are arranged on three sides of the terminal box, the two sides of the terminal box are elastic convexities, and the bottom surface is also provided with elastic convexities, and the opening of the elastic convexities is close to the side of the wire crimping;

[0013] The terminal box is used to connect with the corresponding wiring terminals, and the wire pressing side is used to connect the wires;

[0014] The elastic convexities are provided in three, namely, a first elastic convexity, a second elastic convexity, and a third elastic convexity;

[0015] The first elastic convexity and the third elastic convexity are arranged opposite to each other;

[0016] The second elastic protrusion is arranged on one side sandwiched between the first elastic protrusion and the third elastic protrusion;

[0017] The elastic protrusion is arranged in a box opening provided on the terminal box, and the elastic protrusion can be immersed in the box opening after being compressed.

[0018] In one embodiment, the three elastic protrusions are independent structures, which are set to have the same opening depth and height or to have different opening depths and heights.

[0019] In one of the embodiments, the terminal is further provided with an anti-error protrusion, which is arranged on the upper part of the terminal box on the opposite side of the second elastic protrusion.

[0020] The present application also provides a connector, comprising the anti-rotation, anti-dropout and fool-proof enhanced terminal as described in any one of the above items,

[0021] The connector comprises the above-mentioned anti-rotation, anti-dropout and anti-foolproof enhanced terminal and a correspondingly designed housing;

[0022] The housing comprises an upper housing and a lower housing which are connected vertically, the upper housing is provided with an insertion hole, and the lower housing is provided with a fixing hole;

[0023] Guide grooves and bottom grooves are arranged on the three sides of the fixing hole for passing and clamping the elastic protrusion of the wiring terminal;

[0024] The width and depth of the guide groove and the bottom groove are set to correspond to the corresponding elastic protrusions.

[0025] In one embodiment, the guide groove is surrounded by two guide shoulders and extends to the bottom groove;

[0026] A bottom slot clamping position is arranged on one side of the bottom slot close to the upper shell body, which is used to clamp the elastic protrusion to fix and position the wiring terminal.

[0027] In one embodiment, a first guide block and a second guide block are respectively provided at the connection portion between the upper shell and the lower shell along the front and rear sides of the upper shell to more smoothly insert the terminal box into the fixing hole of the lower shell.

[0028] In one of the embodiments, a portion of the second guide block close to the lower housing is provided with an anti-mistake recess for inserting the anti-mistake protrusion of the terminal.

[0029] In one embodiment, a locking member is provided on the outer side of the upper shell body, which is used to connect with the clamping member;

[0030] The clamping member includes an anti-slipping strip and a clamping arm. The anti-slipping strip is crimped at the opening of the upper shell to prevent the wiring terminal from slipping out. The clamping arm connected to the anti-slipping strip is connected to the locking member of the upper shell. The clamping arm is provided with a space for the locking member to be connected.

[0031] The locking structure of the clamping piece is designed on both sides of the anti-channeling strip in the length direction.

[0032] In one of the embodiments, the locking piece is an outward protrusion; the clamp arm is provided with a space for the locking piece to connect, which may be a hole or an inner concave space; and a barb structure is provided on the clamp arm.

[0033] In one embodiment, the clamping member is provided with an inner member, which is connected to the anti-slip strip and has a position corresponding to the insertion hole of the upper shell. The inner member is a long strip that can be inserted into the insertion hole of the upper shell and has a length reaching the second guide block.

[0034] In one of the embodiments, the edge of the shell has a second boss or a third boss, which are respectively connected to the second clamping member and the third clamping member, and the clamping member includes an anti-slip strip and a clamping arm. The locking structure of the second clamping member and the third clamping member is designed on one side of the width direction of the anti-slip strip. The second clamping member and the third clamping member are both single-sided clamping arms, and a barb is provided on the clamping arm to be connected to the second boss or the third boss on the shell.

[0035] According to the intracranial pressure monitoring sensor provided by the present application, compared with the prior art, the beneficial effect is that:

[0036] 1. Product performance is improved. The terminal is designed with three elastic convex terminals, and corresponding guide grooves and clamping structures are set inside the connector to ensure that the elastic convex terminals will not be deformed and disengaged due to rotation in the connector, while enhancing the pulling force; optimize product structure, improve product performance, and reliability;

[0037] 2. After the three spring-type elastic protrusions are assembled with the connector, a plastic card is added to the outside of the connector to enhance the retention force (pulling force) between the terminal and the connector;

[0038] 3. The installation process is improved, and the installation is fool-proof. The three elastic cams are equivalent to adding a physical fool-proof feature compared to the previous two. It is easier to identify during assembly and avoid defects caused by wrong installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 It is a schematic diagram of the structure of the connection terminals and connectors in use;

[0041] Figure 2 A front view of a wiring terminal in an embodiment;

[0042] Figure 3 A top view of a terminal block in one embodiment;

[0043] Figure 4 A structural side view and a partial cross-sectional view of a connector in one embodiment;

[0044] Figure 5 It is a front view structural schematic diagram and a partial cross-sectional view of a connector in one embodiment;

[0045] Figure 6 A cross-sectional view of the connection relationship between the elastic protrusion of the connecting terminal and the bottom groove of the connector in one embodiment;

[0046] Figure 7 A schematic diagram and a partial cross-sectional view of the connection structure between the connector and the clamping member in one embodiment;

[0047] Figure 8 A side view of a connection structure between a connector and a clamping member in an embodiment;

[0048] Fig. 9 A front view of a connection structure between a connector and a clamping member in an embodiment;

[0049] Fig.10 It is a schematic diagram and a partial cross-sectional view of the connection structure between the connector in one embodiment and the clamping member in an improved implementation manner.

[0050] Reference numerals:

[0051] In the figure: 100, terminal, 101, terminal box, 102, error prevention protrusion; 103, elastic protrusion; 1031, first elastic protrusion, 1032, second elastic protrusion, 1033, third elastic protrusion; 104, box opening,

[0052] 105, insulation crimping tail, 106, bending hole, 107, conductor crimping tail,

[0053] 200, housing, 201, upper housing, 202, insertion hole, 203, lower housing, 204, fixing hole,

[0054] 205, bottom slot, 2051, bottom slot slot,

[0055] 206, first guide block, 207, second guide block, 208, guide groove, 2051, guide shoulder,

[0056] 209. Anti-error depression,

[0057] 210, locking convex, 220, second convex platform, 230, third convex platform,

[0058] 300, first clamping member, 301, anti-channeling strip, 302, clamping arm, 303, inner member,

[0059] 320, second clamping member, 330, third clamping member. DETAILED DESCRIPTION

[0060] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0061] The application scenarios of the intracranial pressure monitoring sensor of the present application and its contribution to the prior art will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0062] Figure 1 The structure of the connector and the terminal block currently in use are shown.

[0063] The fixing method of the terminal block and the connector (insulating plastic shell) is mostly two-point fixing, and the inside of the connector (insulating plastic shell) is mostly an annular protrusion anti-dropping structure without a guide structure, and there is no plastic clip for secondary anti-dropping on the connector (insulating plastic shell);

[0064] The wiring terminal and the connector (insulating rubber shell) are fixed at two points, and the inside of the connector (insulating rubber shell) is mostly a ring-shaped protrusion anti-drop structure, and the terminal will rotate in the connector (insulating rubber shell);

[0065] There is no guide structure inside the connector (insulating plastic shell), and the two clips (hooks) of the terminal are symmetrical structures, which cannot effectively prevent mis-assembly during production. There are no identification points when employees assemble, and it is easy to install it upside down, resulting in a high scrap and repair rate and increased costs.

[0066] There is no secondary anti-detachment plastic clip on the connector (insulating rubber shell). In order to meet the requirements of reliable conduction, fast charging and discharging, the wiring harness needs to have technical standards for large current and stable transmission. Most of the wires used are thicker. After the terminal blocks are assembled into the connector (insulating rubber shell), when they are installed into the control board or connected to it, there are abnormal installation conditions such as wire twisting and bending. If only relying on the holding force of the wire and the two spring-type snap (hook) terminals and the connector (insulating rubber shell), it is impossible to ensure that they will not fall out or have poor conduction in special circumstances such as twisting and bending.

[0067] Therefore, it is a technical problem that technicians in this field need to solve urgently to find an enhanced terminal and connector that is anti-rotation, anti-dropout, and anti-fool. In order to improve product performance, prevent the terminal from rotating inside the connector, avoid the terminal buckle (hook) from deforming and falling out due to rotation in the connector (insulating rubber shell), and enhance the pulling force; and play a fool-proof role, the following improvements are made.

[0068] like Figure 2 , 3 As shown, the structure of the anti-rotation, anti-detachment and anti-foolproof enhanced terminal is shown.

[0069] An anti-rotation, anti-dropout and fool-proof enhanced terminal, the terminal 100 comprises a terminal box 101 and a wire pressing side connected thereto;

[0070] The terminal box 101 is provided with an elastic protrusion 103, which is an elastic metal sheet on the terminal box 101;

[0071] The elastic protrusions 103 are arranged on three side surfaces of the terminal box 101. The two side surfaces of the terminal box 101 have protruding elastic protrusions 103 with elastic structures, and the bottom surface also has protruding elastic protrusions 103 with elastic structures. The opening of the elastic protrusions 103 is close to the wire pressing side.

[0072] The terminal box 101 is used to connect with the corresponding wiring terminal, and the wire pressing side is used to connect the wire.

[0073] The elastic protrusions 103 are provided in three numbers, namely, a first elastic protrusion 1031, a second elastic protrusion 1032, and a third elastic protrusion 1033;

[0074] The first elastic protrusion 1031 and the third elastic protrusion 1033 are arranged opposite to each other;

[0075] The second elastic protrusion 1032 is disposed on one side sandwiched between the first elastic protrusion 1031 and the third elastic protrusion 1033;

[0076] The elastic protrusion is arranged in the box opening 104 opened on the terminal box 101, and the elastic protrusion can be immersed in the box opening 104 after being compressed.

[0077] The three elastic protrusions are independent structures and can be set to have the same opening depth and height, or to have different opening depths and heights.

[0078] The terminal is also provided with an anti-error protrusion 102, which is arranged on the upper part of the terminal box 101 on the opposite side of the second elastic protrusion 1032.

[0079] The crimping side is connected to the terminal box 101 and includes a conductor crimping tail 107 and an insulation crimping tail 105;

[0080] The conductor crimping tail 107 is used to connect the conductor part of the wire;

[0081] The insulation crimping tail 105 is used to connect the insulation layer of the wire;

[0082] The conductor crimping tail 107 is provided with a bending hole 106 to facilitate crimping and provide space for bending.

[0083] The terminal is made of conductive material and is formed by integral stamping and bending.

[0084] Figure 4-6 The structure and connection relationship between the connection terminal and the connector housing 200 are shown.

[0085] In order to use the newly designed anti-rotation, anti-dropping and anti-foolproof enhanced terminals, a correspondingly designed connector is designed.

[0086] The connector comprises the above-mentioned anti-rotation, anti-dropout and anti-foolproof enhanced terminal and a correspondingly designed housing 200;

[0087] The housing 200 includes an upper housing 201 and a lower housing 203 which are connected vertically. The upper housing 201 is provided with an insertion hole 202, and the lower housing 203 is provided with a fixing hole 204.

[0088] Guide grooves 208 and bottom grooves 205 are provided on three sides of the fixing hole 204 for the elastic protrusions of the connecting terminal to pass through and be inserted into.

[0089] The width and depth of the guide groove 208 and the bottom groove 205 are set to correspond to the corresponding elastic protrusions.

[0090] The guide groove 208 is surrounded by two guide shoulders 2051 and extends to the bottom groove;

[0091] The bottom slot 205 is provided with a bottom slot clamping position 2051 on one side close to the upper shell 201, which is used to clamp the elastic protrusion to fix the wiring terminal and position it.

[0092] A first guide block 206 and a second guide block 207 are respectively provided at the connection portion between the upper shell 201 and the lower shell 203 along the front and rear sides of the upper shell 201 to facilitate smoother insertion of the terminal box 101 of the connection terminal into the fixing hole 204 of the lower shell 203.

[0093] A guide structure is added inside the connector (insulating plastic shell). The position of this guide structure matches the position of the protruding elastic structure of the terminal. The guide structure includes a guide groove 208, a guide shaft shoulder, and a bottom groove clamping position 2051. The three guide structures are independent structures and are not connected to prevent mis-installation.

[0094] An anti-mistake recess 209 is provided at a portion of the second guide block 207 close to the lower housing 203 for inserting the anti-mistake protrusion 102 of the terminal.

[0095] After the terminal's anti-mistake protrusion 10 2 is assembled to the corresponding anti-mistake recess 20 9 position of the connector, it cannot be pushed. While preventing wrong insertion, it also has a limiting function, which prevents the terminal from being over-inserted, damaging the housing 20 0 and the terminal, causing unnecessary waste.

[0096] Figure 7-9 The structure of a clamping member and its connection relationship with the housing 200 and the connection terminal are shown.

[0097] A locking member is arranged on the outer side of the upper shell 201, which is used to connect with the clamping member. The locking member is an outward protrusion.

[0098] The following describes an implementation form of a clamping member. The first clamping member 300 includes an anti-slip bar 301 and a clamping arm 302. During installation, the anti-slip bar 301 is crimped onto the opening of the upper shell 201 to prevent the wiring terminal from slipping out. The clamping arm 302 connected to the anti-slip bar 301 is connected to the locking member of the upper shell 201.

[0099] The clamping piece can play a role in strengthening and preventing the connection between the housing 200 and the terminal block.

[0100] The clamp arm 302 is provided with a space for the locking member to connect, which may be a hole or a concave space.

[0101] Furthermore, a barb structure may be provided on the clamp arm 302 .

[0102] It should be noted that the above arrangement can be reversed, for example, an inward depression is arranged on the housing 200, and a locking protrusion 210 is arranged on the clamp arm 302. The locking protrusion 210 is matched and connected with the depression.

[0103] The clamping member is further provided with an inner member 303, which is connected to the anti-slip strip 301 and has a position corresponding to the insertion hole 202 of the upper shell 201. The inner member 303 is a long strip that can be inserted into the insertion hole 202 of the upper shell 201 and has a length reaching the second guide block 207.

[0104] After the inner component 303 is inserted, when the inner component 303 reaches the second guide block 207, it is squeezed by the second guide block 207 and deviates toward the wire pressing side of the terminal, further compressing the displacement space and twisting space of the terminal.

[0105] It should be noted that the main functions of the clamps include: 1. fixing the terminals and connectors more tightly; 2. for some terminals that are not fully assembled, the terminals can be pressed into place while assembling the clamps.

[0106] FIG. 10 shows the structure and connection method of the clamping member designed to adapt to the connecting member currently in use.

[0107] On the basis of the above-mentioned clamping member, in order to adapt to the housing 200 that is not provided with a locking structure at present, the edge of the general housing 200 is provided with a second boss 220 or a third boss 230.

[0108] A second clamping member 320 and a third clamping member 330 structure matched with the second boss 220 or the third boss 230 are designed.

[0109] The structures of the second clamping member 320 and the third clamping member 330 are similar to those of the first clamping member 300, except that the locking structures of the first clamping member 300 are designed on both sides of the length direction of the anti-slip strip 301, and the locking structures of the second clamping member 320 and the third clamping member 330 are designed on one side of the width direction of the anti-slip strip 301. The second clamping member 320 and the third clamping member 330 are both single-sided clamping arms 302, and barbs are provided on the clamping arms 302 to be connected to the second boss 220 or the third boss 230 on the outer shell 200.

[0110] It should be noted that

[0111] The present application provides three spring-type snap-on (hook) terminals, and sets corresponding guide grooves 20 8 and clamping positions inside the connector (insulating plastic shell), and three-point positioning of the spring-type snap-on (hook) terminals, optimizes the product structure, and improves the product connection performance and reliability;

[0112] After the three spring-type snap (hook) terminals are assembled with the connector (insulating plastic shell), a plastic clip is simultaneously added to the outer side of the connector (insulating plastic shell) to enhance the holding force (pulling force) between the terminal and the connector (insulating plastic shell).

[0113] The installation process is improved and the installation is fool-proof. The three spring clip clips (hooks) have one more clip (hook) than the previous two clip (hook) terminals, which is equivalent to adding a physical fool-proofing device, making it easier to identify during assembly and avoiding defects caused by reverse installation.

[0114] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0115] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An anti-rotation, anti-dropping and anti-foolproof enhanced terminal, characterized in that: The terminal comprises a terminal box and a wire pressing side connected thereto; The terminal box is provided with an elastic protrusion, which is an elastic metal sheet on the terminal box; The elastic convexities are arranged on three sides of the terminal box, the two sides of the terminal box are elastic convexities, and the bottom surface is also provided with elastic convexities, and the opening of the elastic convexities is close to the side of the wire crimping; The terminal box is used to connect with the corresponding wiring terminals, and the wire pressing side is used to connect the wires; The elastic convexities are provided in three, namely, a first elastic convexity, a second elastic convexity, and a third elastic convexity; The first elastic convexity and the third elastic convexity are arranged opposite to each other; The second elastic protrusion is arranged on one side sandwiched between the first elastic protrusion and the third elastic protrusion; The elastic protrusion is arranged in a box opening provided on the terminal box, and the elastic protrusion can be immersed in the box opening after being compressed.

2. The anti-rotation, anti-dropout and fool-proof enhanced terminal according to claim 1, characterized in that: The three elastic protrusions are independent structures and are set to have the same opening depth and height or to have different opening depths and heights.

3. The anti-rotation, anti-dropout and fool-proof enhanced terminal according to claim 2, characterized in that: The terminal is also provided with an anti-error protrusion, which is arranged on the upper part of the terminal box at the opposite side of the second elastic protrusion.

4. A connector, characterized in that: The invention comprises the anti-rotation, anti-dropout and fool-proof reinforced terminal as claimed in any one of claims 1 to 3, The connector comprises the above-mentioned anti-rotation, anti-dropout and anti-foolproof enhanced terminal and a correspondingly designed housing; The housing comprises an upper housing and a lower housing which are connected vertically, the upper housing is provided with an insertion hole, and the lower housing is provided with a fixing hole; Guide grooves and bottom grooves are arranged on the three sides of the fixing hole for passing and clamping the elastic protrusion of the wiring terminal; The width and depth of the guide groove and the bottom groove are set to correspond to the corresponding elastic protrusions.

5. The connector according to claim 4, characterized in that: The guide groove is surrounded by two guide shoulders and extends to the bottom groove; A bottom slot clamping position is arranged on one side of the bottom slot close to the upper shell body, which is used to clamp the elastic protrusion to fix and position the wiring terminal.

6. The connector according to claim 5, characterized in that: A first guide block and a second guide block are respectively arranged at the connection portion between the upper shell and the lower shell along the front and rear sides of the upper shell, so as to more smoothly insert the terminal box into the fixing hole of the lower shell.

7. The connector according to claim 6, characterized in that: An anti-mistake recess is arranged at a portion of the second guide block close to the lower housing for inserting the anti-mistake protrusion of the terminal.

8. The connector according to claim 4, characterized in that: A locking piece is arranged on the outer side of the upper shell body, which is used to connect with the clamping piece; The clamping member includes an anti-slipping strip and a clamping arm. The anti-slipping strip is crimped at the opening of the upper shell to prevent the wiring terminal from slipping out. The clamping arm connected to the anti-slipping strip is connected to the locking member of the upper shell. The clamping arm is provided with a space for the locking member to be connected. The locking structure of the clamping piece is designed on both sides of the anti-channeling strip in the length direction.

9. The connector according to claim 8, characterized in that: The locking piece is an outward protrusion; the clamp arm is provided with a space for the locking piece to connect, which may be a hole or an inner concave space; a barb structure is provided on the clamp arm.

10. The connector according to claim 9, characterized in that: The clamping member is provided with an inner member, which is connected to the anti-slip strip and has a position corresponding to the insertion hole of the upper shell. The inner member is a long strip that can be inserted into the insertion hole of the upper shell and has a length reaching the second guide block.

11. The connector according to claim 4, characterized in that: The edge of the shell is provided with a second boss or a third boss, which are respectively connected to the second clamping piece and the third clamping piece. The clamping piece includes an anti-slip strip and a clamping arm. The locking structure of the second clamping piece and the third clamping piece is designed on one side of the width direction of the anti-slip strip. The second clamping piece and the third clamping piece are both single-sided clamping arms, and a barb is provided on the clamping arm to be connected to the second boss or the third boss on the shell.