A spring lock type electrical connector

Abstract

The application provides a spring piece locking type electric connector, which comprises an insulating shell, a plug pin in the insulating shell and an elastic locking assembly. The elastic locking assembly comprises a terminal block, an operating piece, a wire locking spring piece and a fixing spring piece. The terminal block is made of conductive material, the plug pin is connected with the terminal block, the operating piece and the terminal block form a cavity, and the operating piece can move up and down relative to the terminal block. The wire locking spring piece has a fixed end and a free end, the fixed end of the wire locking spring piece is connected with the terminal block, the free end of the wire locking spring piece is accommodated in the cavity, the fixing spring piece is connected with the terminal block, and the fixing spring piece is clamped with the inner side wall of the insulating shell. The application has the wire locking spring piece and the fixing spring piece, the fixing spring piece is fixedly connected with the terminal block, thereby improving the assembly reliability of the fixing spring piece and the plastic plug body. The fixed end of the wire locking spring piece is also fixedly connected with the terminal block, thereby making the wire locking spring piece more reliable in pressing the wire.

Description

Technical Field

[0001] This invention relates to the field of electrical connection technology, and in particular to a spring-locking electrical connector. Background Technology

[0002] In the existing technology, spring-locking electrical connectors are widely used. In traditional spring-locking electrical connectors, one end of the spring is fixedly connected to the terminal block, and the other end of the spring abuts against the inner wall of the terminal block. The spring clip of the spring is engaged with the insulating shell. When connecting or disconnecting wires, the spring will swing, which may result in insufficient clamping force of the spring on the wire and may affect the reliability of the engagement between the spring and the insulating shell. Summary of the Invention

[0003] Based on this, the main objective of the present invention is to provide a spring-locking electrical connector that provides sufficient clamping force on the wires and reliable engagement between the spring and the insulating housing.

[0004] To achieve the above objectives, the present invention provides a spring-locking electrical connector.

[0005] The spring-loaded locking electrical connector includes an insulating housing, a pin, and a resilient locking assembly. The resilient locking assembly and the pin are located inside the insulating housing, and the pin is connected to the resilient locking assembly.

[0006] The elastic locking assembly includes a terminal block, an operating member, a locking spring, and a fixing spring. The terminal block is made of conductive material, and the pin is connected to the terminal block. The operating member is disposed opposite to the terminal block to form a cavity, and the operating member can move up and down relative to the terminal block. The locking spring has a fixed end and a free end. The fixed end of the locking spring is connected to the terminal block, and the free end of the locking spring is housed in the cavity. The fixing spring is connected to the terminal block and engages with the inner wall of the insulating shell.

[0007] The operating member is driven to move up and down relative to the terminal block, causing the operating member to move away from or press against the free end of the locking spring, thereby causing the free end of the locking spring to move closer to or away from the inner wall of the terminal block. In this way, the free end of the locking spring can press or release the wire extending into the cavity, so that the wire can achieve electrical connection with the pin through the terminal block, or disconnect the wire from the pin.

[0008] Preferably, the terminal block has a tongue, the fixed end of the locking spring is engaged with the tongue, and the fixing spring is engaged with the tongue.

[0009] Preferably, the tongue includes an integrally formed connecting portion and an outwardly folded portion, the fixed end of the locking spring and the fixing spring are sequentially sleeved on the connecting portion, and the outwardly folded portion abuts against the side of the fixing spring away from the fixed end of the locking spring, so as to fix the fixing spring and the fixed end of the locking spring to the terminal block.

[0010] Preferably, the everted portion of the tongue is obtained by riveting the connecting portion.

[0011] Preferably, the terminal block includes a base plate and a first side plate, a second side plate, and a third side plate disposed on the base plate. The first side plate, the second side plate, and the third side plate are connected in sequence. The first side plate and the third side plate are disposed opposite to each other. The pin is connected to the base plate. The operating member is fitted with the first side plate and the third side plate. The first side plate and the third side plate are provided with guide grooves. The operating member can move up and down relative to the terminal block along the guide grooves.

[0012] The operating member is driven to move up and down relative to the terminal block, causing the operating member to move away from or press against the free end of the locking spring, thereby causing the free end of the locking spring to move closer to or away from the second side plate, and thus the wire is pressed between the free end of the locking spring and the second side plate, or the free end of the locking spring releases the wire.

[0013] Preferably, the second side plate is provided with a riveting support hole, which is used to allow the support member to extend into the terminal block when the tongue is riveted, so as to support the terminal block.

[0014] Preferably, the pin is riveted to the base plate.

[0015] Preferably, the inner wall of the insulating housing is provided with a groove, and the fixing spring includes an integrally formed fixing part and a bending part. The fixing part is connected to the terminal block, and the bending part is engaged in the groove.

[0016] Preferably, the locking spring further includes a bent transition portion for connecting the fixed end and the free end, and the inner sidewall of the insulating housing is provided with a protrusion for supporting the bent transition portion.

[0017] Preferably, the upper end of the insulating housing has a wiring terminal with multiple wiring ports for inserting the wire, the lower end of the insulating housing has a plug-in end for connecting to another electrical appliance or a terminal block, the insulating housing has a wiring cavity, the wiring ports and the plug-in end are respectively connected to the wiring cavity, the elastic locking component is disposed in the wiring cavity, the pin is disposed in the wiring cavity, and the pin portion extends into the wiring cavity and connects to the terminal block.

[0018] Advantages of the technical solution of this invention: When it is necessary to electrically connect the wire to the pin, the wire is inserted into the cavity. Due to the obstruction of the free end of the locking spring, the wire cannot enter between the free end of the locking spring and the inner wall of the terminal block. The driving member moves downward relative to the terminal block, causing the operating member to approach and squeeze the free end of the locking spring. This causes the free end of the locking spring to gradually approach the fixed end of the locking spring, that is, the free end moves away from the inner wall of the terminal block opposite to the fixed end. As a result, the gap between the free end and the inner wall of the terminal block increases, and the wire extends into the gap between the free end and the inner wall of the terminal block. Then, the force applied to the operating member is released, and the wire is locked. The free end of the spring automatically springs back, approaching the inner wall of the terminal block opposite to the fixed end. This reduces the gap between the free end and the inner wall of the terminal block, pressing the wire between the free end of the spring and the inner wall of the terminal block. The wire then connects to the pin via the terminal block. When the wire needs to be removed to disconnect the connection from the pin, the drive mechanism moves downward relative to the terminal block, causing the free end of the spring to move away from the inner wall of the terminal block opposite to the fixed end. This increases the gap between the free end and the inner wall of the terminal block, releasing the wire. The wire is then pulled out of the chamber, thus disconnecting the wire from the pin. This application includes two springs: a locking spring and a fixing spring. The fixing spring connects to the terminal block and engages with the inner wall of the insulating housing. This fixing spring secures the terminal block, locking spring, and fixing spring relative to the insulating housing. Because the fixing spring is fixedly connected to the terminal block, its stable setting improves the reliability of the assembly of the terminal block, locking spring, fixing spring, and plastic insert. Furthermore, since the fixing end of the locking spring is also fixedly connected to the terminal block, the locking spring's setting is more stable, resulting in more reliable wire clamping. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the devices shown in these drawings without creative effort.

[0020] Figure 1 An exploded view of a spring-loaded locking electrical connector according to one embodiment;

[0021] Figure 2 A axial sectional view of a spring-loaded locking electrical connector according to an embodiment;

[0022] Figure 3 A axial sectional view of an insulating housing according to one embodiment;

[0023] Figure 4 An exploded view of an embodiment of an elastic locking component;

[0024] Figure 5 This is a schematic diagram of the structure of a terminal block according to one embodiment;

[0025] Figure 6 This is a schematic diagram of the terminal block, wire locking spring, and fixing spring according to one embodiment;

[0026] Figure 7 This is a schematic diagram of the structure of an elastic locking component according to one embodiment;

[0027] Figure 8A This is a schematic diagram of a single-core hard wire or a wire with terminals before being inserted into a spring-locking electrical connector according to one embodiment.

[0028] Figure 8B This is a schematic diagram illustrating the assembly of a single-core hard wire or a wire with terminals with a spring-loaded locking electrical connector, according to one embodiment.

[0029] Figure 8C This is a schematic diagram illustrating the withdrawal of a single-core solid wire or a wire with terminals from a spring-locking electrical connector, according to one embodiment.

[0030] Figure 9A This is a schematic diagram of an auxiliary tool for inserting a multi-strand flexible wire into a spring-loaded locking electrical connector, according to one embodiment.

[0031] Figure 9B This is a schematic diagram of a multi-strand flexible wire before it is inserted into a spring-locking electrical connector according to an embodiment.

[0032] Figure 9C This is a schematic diagram illustrating the process of inserting a multi-strand flexible wire into a spring-locking electrical connector and then removing the auxiliary tool, as shown in one embodiment.

[0033] Figure 9D This is a schematic diagram illustrating the assembly of a multi-strand flexible wire and spring-locking electrical connector according to one embodiment.

[0034] Figure 9E This is a schematic diagram illustrating the retraction of a multi-strand flexible wire from a spring-locking electrical connector according to one embodiment.

[0035] Among them, 100 is the insulating shell; 110 is the protrusion; 120 is the terminal; 121 is the connection port; 122 is the auxiliary interface; 130 is the plug-in end; 140 is the wiring cavity; 141 is the groove; 200 is the pin; 210 is the rivet joint; 220 is the limiting part; 300 is the elastic locking assembly; 310 is the terminal block; 311 is the tongue; 3111 is the connecting part; 3112 is the outward-facing part; 312 is the base plate; 3121 is the rivet hole; and 313 is the first side. Plate; 314, Second side plate; 3141, Riveting support hole; 315, Third side plate; 316, Guide groove; 320, Operating component; 321, Main body; 322, Block structure; 3221, Slot; 330, Locking spring; 331, Fixed end; 3311, First opening; 332, Free end; 333, Bending transition part; 340, Fixing spring; 341, Fixing part; 3411, Second opening; 342, Bending part; 400, Chamber.

[0036] 1. Wire; 2. Auxiliary tools.

[0037] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions involving "first," "second," etc., in the present invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0040] like Figure 1-4 As shown, this application provides a spring-locking electrical connector, which includes an insulating housing 100, a pin 200, and an elastic locking assembly 300. The elastic locking assembly 300 and the pin 200 are located inside the insulating housing 100. The pin 200 is connected to the elastic locking assembly 300. The elastic locking assembly 300 includes a terminal block 310, an operating member 320, a locking spring 330, and a fixing spring 340. The terminal block 310 is made of conductive material. The pin 200 is connected to the terminal block 310. The operating member 320 is disposed opposite to the terminal block 310 to form a cavity 400, and the operating member 320 can move up and down relative to the terminal block 310. The locking spring 330 has a fixed end 331 and a free end 332. The fixed end 331 of the locking spring 330 is connected to the terminal block 310, the free end 332 of the locking spring 330 is housed in the cavity 400, the fixed spring 340 is connected to the terminal block 310, and the fixed spring 340 is engaged with the inner wall of the insulating housing 100; the driving operating member 320 moves up and down relative to the terminal block 310, so that the operating member 320 moves away from or presses the free end 332 of the locking spring 330, thereby making the free end 332 of the locking spring approach or move away from the inner wall of the terminal block 310, so that the free end 332 of the locking spring can press or release the wire 1 that extends into the cavity 400, so that the wire 1 can achieve electrical connection with the pin 200 through the terminal block 310, or disconnect the wire 1 from the pin 200. Specifically, the free end 332 of the locking spring presses the wire 1 that extends into the chamber 400, which means that the wire 1 is pressed between the free end 332 of the locking spring and the inner wall of the terminal block 310, and then the wire 1 achieves electrical connection with the pin 200 through the terminal block 310 made of conductive material.

[0041] When it is necessary to electrically connect wire 1 to pin 200, wire 1 is inserted into chamber 400. Due to the obstruction of the free end 332 of locking spring 330, wire 1 cannot directly enter between the free end 332 of locking spring 330 and the inner wall of terminal block 310. The driving member 320 moves downward relative to terminal block 310, causing the operating member 320 to approach and press the free end 332 of locking spring 330. This causes the free end 332 of locking spring 330 to gradually approach the fixed end 331 of locking spring 330, that is, the free end 332 moves away from the inner wall of terminal block 310 opposite to the fixed end 331. As a result, the gap between the free end 332 and the inner wall of terminal block 310 increases, and wire 1 extends into the gap between the free end 332 and the inner wall of terminal block 310. Then, the force applied to the operating member 320 is released, and the locking spring 332... The free end 332 of the wire lock spring automatically springs back, and the free end 332 approaches the inner wall of the terminal block 310 opposite to the fixed end 331, thereby reducing the gap between the free end 332 and the inner wall of the terminal block 310. The wire 1 is pressed between the free end 332 of the wire lock spring and the inner wall of the terminal block 310, and the wire 1 is electrically connected to the pin 200 through the terminal block 310. When it is necessary to remove the wire 1 to disconnect the electrical connection with the pin 200, the drive operating member 320 moves downward relative to the terminal block 310, so that the free end 332 of the wire lock spring moves away from the inner wall of the terminal block 310 opposite to the fixed end 331, thereby increasing the gap between the free end 332 and the inner wall of the terminal block 310, thereby releasing the wire 1, and then pulling the wire 1 out of the chamber 400, thereby disconnecting the wire 1 from the pin 200. This application includes two springs: a locking spring 330 and a fixing spring 340. The fixing spring 340 is connected to the terminal block 310 and engages with the inner wall of the insulating housing 100. Thus, the fixing spring 340 secures the terminal block 310, the locking spring 330, and the fixing spring 340 relative to the insulating housing 100. Because the fixing spring 340 is fixedly connected to the terminal block 310, its placement is stable, thereby improving the reliability of the assembly of the terminal block 310, the locking spring 330, and the fixing spring 340 with the plastic insert. Furthermore, since the fixing end 331 of the locking spring 330 is also fixedly connected to the terminal block 310, the placement of the locking spring 330 is more stable, resulting in more reliable clamping of the wire 1 by the locking spring 330.

[0042] In this embodiment, the force applied to the operating member 320 is removed, causing the free end 332 of the wire-locking spring 330 to automatically spring back. When the wire 1 is pressed, the free end 332 of the wire-locking spring 330 also causes the operating member 320 to move upward relative to the terminal block 310. However, because the free end 332 of the wire-locking spring 330 presses against the wire 1, the free end 332 of the wire-locking spring 330 does not spring back to its initial state, and consequently, the operating member 320 does not reset to its initial state. In this embodiment, the terminal block 310 is made of metal.

[0043] Specifically, the up-and-down movement of the operating member 320 relative to the terminal block 310 is the pressing stroke. Within the pressing stroke, the locking spring is limited by the operating member 320 and the terminal block 310 in the cavity 400 enclosed by the operating member 320 and the terminal block 310.

[0044] refer to Figure 4-5 The terminal block 310 has a tongue 311, the fixed end 331 of the locking spring 330 is snapped onto the tongue 311, and the fixing spring 340 is snapped onto the tongue 311.

[0045] refer to Figure 5-6 The tongue 311 includes an integrally formed connecting portion 3111 and an outwardly turned portion 3112. The fixed end 331 and the fixed spring 340 of the locking spring 330 are sequentially sleeved on the connecting portion 3111. The outwardly turned portion 3112 abuts against the side of the fixed spring 340 away from the fixed end 331 of the locking spring 330, so as to fix the fixed spring 340 and the fixed end 331 of the locking spring 330 to the terminal block 310. Specifically, in the prior art, when there is only one spring, the spring is not fixed relative to the terminal block 310, which may result in insufficient clamping force of the spring on the wire 1 and may affect the reliability of the spring and the insulating shell 100. In this application, the fixed end 331 and the fixed spring 340 of the locking spring 330 are both fixedly set relative to the terminal block 310, thereby ensuring that the locking spring 330 clamps the wire 1 reliably and that the fixed spring 340 is reliably engaged with the insulating shell 100.

[0046] refer to Figure 4 and Figure 6 The fixing end 331 of the locking spring 330 has a first opening 3311, and the fixing spring 340 has a second opening 3411. The fixing end 331 is sleeved on the connecting part 3111 through the first opening 3311, and the fixing spring 340 is sleeved on the connecting part 3111 through the second opening 3411.

[0047] Furthermore, the outward-curved portion 3112 of the tongue 311 is obtained by riveting the connecting portion 3111. Specifically, a locking spring 330 and a fixing spring 340 are sequentially installed on the tongue 311 of the terminal block 310, and then the tongue 311 is riveted into an outward-curved shape using a riveting fixture, thereby completing the assembly of the locking spring 330 and the fixing spring 340 relative to the terminal block 310.

[0048] refer to Figure 4-5 and Figure 7 The terminal block 310 includes a base plate 312 and a first side plate 313, a second side plate 314, and a third side plate 315 disposed on the base plate 312. The first side plate 313, the second side plate 314, and the third side plate 315 are connected in sequence. The first side plate 313 and the third side plate 315 are arranged opposite to each other. The pin 200 is connected to the base plate 312. The operating member 320 is fitted with the first side plate 313 and the third side plate 315. Guides are provided on the first side plate 313 and the third side plate 315. The operating member 320 can move up and down relative to the terminal block 310 along the guide groove 316; the driving operation member 320 moves up and down relative to the terminal block 310, so that the operating member 320 moves away from or presses the free end 332 of the locking spring 330, thereby making the free end 332 of the locking spring approach or move away from the second side plate 314, and then the wire 1 is pressed between the free end 332 of the locking spring and the second side plate 314, or the free end 332 of the locking spring releases the wire 1.

[0049] Specifically, there are two tongues 311, which are respectively disposed on the ends of the first side plate 313 and the third side plate 315 before they are connected to the second side plate 314. The fixed end 331 of the locking spring 330 is sleeved on the two tongues 311, and the free end 332 of the locking spring 330 abuts against the second side plate 314. The operating member 320, the base plate 312, the first side plate 313, the second side plate 314, and the third side plate 315 form a cavity 400. The extension direction of the guide groove 316 is parallel to the axis of the insert pin 200.

[0050] refer to Figure 4 The second side plate 314 has a riveting support hole 3141, which is used to allow the support member to extend into the terminal block 310 during the riveting of the tongue 311, so as to support the terminal block 310. Specifically, before the tongue 311 is riveted, the support member is first inserted into the terminal block 310 through the riveting support hole 3141 to press against the inner wall of the terminal block 310, thereby preventing the terminal block 310 from undergoing large deformation during the riveting of the tongue 311.

[0051] Further, refer to Figure 2 and Figure 4The pin 200 is riveted to the base plate 312. Specifically, the top of the pin 200 has a rivet head 210, and the base plate 312 has a rivet hole 3121. The rivet head 210 is inserted into the rivet hole 3121 for riveting.

[0052] refer to Figure 2-3 The inner wall of the insulating housing 100 has a groove 141. The fixing spring 340 includes an integrally formed fixing part 341 and a bent part 342. The fixing part 341 is connected to the terminal block 310, and the bent part 342 is engaged in the groove 141. In this embodiment, the second opening 3411 is formed in the fixing part 341 of the fixing spring 340. Specifically, the fixing spring 340 is engaged in the groove 141 of the insulating housing 100 by the bent part 342, thereby ensuring reliable assembly between the fixing spring 340 and the plastic insert.

[0053] refer to Figure 2-4 The locking spring 330 also includes a bending transition portion 333 for connecting the fixed end 331 and the free end 332. The inner sidewall of the insulating housing 100 is provided with a protrusion 110, which is used to support the bending transition portion 333. Specifically, the protrusion 110 supports the bending transition portion 333, thereby preventing the bending transition portion 333 from undergoing excessive deformation.

[0054] When it is necessary to electrically connect the wire 1 to the pin 200, the wire 1 is inserted into the chamber 400, and the operating member 320 is driven to move downward relative to the terminal block 310. This causes the operating member 320 to approach and press the free end 332 of the locking spring 330. The free end 332 changes angle relative to the bending transition portion 333, thereby causing the free end 332 of the locking spring 330 to gradually approach the fixed end 331 of the locking spring 330. That is, the free end 332 moves away from the inner wall of the terminal block 310 opposite to the fixed end 331. As a result, the gap between the free end 332 and the inner wall of the terminal block 310 increases, and the wire 1 can be electrically connected to the pin 200 through the gap between the free end 332 and the inner wall of the terminal block 310. Afterward, the force applied to the operating member 320 is released, and the free end 332 of the locking spring 330 automatically springs back, pressing the wire 1 between the free end 332 of the locking spring and the inner wall of the terminal block 310.

[0055] refer to Figure 1-3The upper end of the insulating housing 100 has a terminal 120 with multiple connection ports 121 for inserting a wire 1. The lower end of the insulating housing 100 has a plug-in end 130 for connecting to another electrical appliance or a mating terminal. The insulating housing 100 has a wiring cavity 140, with the connection ports 121 and the plug-in end 130 communicating with the wiring cavity 140. A resilient locking assembly 300 is disposed in the wiring cavity 140, and a pin 200 is disposed in the wiring cavity 140, with a portion of the pin 200 extending into the wiring cavity 140 and connecting to the terminal block 310. Specifically, the wire 1 extends into the cavity 400 of the resilient locking assembly 300 through the connection port 121.

[0056] refer to Figure 1 Each connector 121 is accompanied by an auxiliary interface 122, which communicates with the connector cavity 140. The auxiliary interface 122 allows the insertion of an auxiliary tool 2. When the auxiliary tool 2 is inserted into the auxiliary interface 122, force is applied to move the auxiliary tool 2 downwards, thereby causing the operating member 320 to move downwards in the guide groove 316 of the connector 310. This, in turn, causes the operating member 320 to approach and press against the free end 332 of the locking spring 330, bringing the free end 332 closer to the second side plate 314. When the auxiliary tool 2 is pulled out and the external force disappears, the free end 332 of the locking spring 330 automatically resets. Specifically, the auxiliary tool 2 can be a screwdriver, etc.

[0057] In this embodiment, the auxiliary interface 122 is connected to the wiring port 121, and the wiring cavity 140 is located below the auxiliary interface 122 and the wiring port 121.

[0058] refer to Figure 2 and Figure 7 The operating component 320 includes a connected main body 321 and a block structure 322. The upper part of the block structure 322 has a slot 3221 so that the auxiliary tool 2 can pass through the auxiliary interface 122 and be inserted into the slot 3221, thereby facilitating the auxiliary tool 2 to drive the operating component 320 to move downward in the guide groove 316 of the terminal block 310.

[0059] refer to Figure 7 In this embodiment, slot 3221 is a flat slot, and auxiliary tool 2 is a flat-head screwdriver. The flat-head screwdriver is adapted to the flat slot. The flat-head screwdriver is inserted into the flat slot of block structure 322, so that the flat-head screwdriver can drive the operating member 320 to move downward in the guide groove 316 of terminal block 310.

[0060] refer to Figure 2 The upper end of the pin 200 is provided with a limiting part 220, and the pin 200 is engaged with the bottom of the wiring cavity 140 through the limiting part 220. Specifically, the rivet head 210 is located at the upper end of the limiting part 220.

[0061] Specifically, conductor 1 is a single-core solid wire, a wire with terminals, or a multi-strand flexible wire.

[0062] Example 1

[0063] refer to Figures 8A-8C When assembling single-core solid wires or wires with terminals:

[0064] 1. Direct insertion of wire 1. Specifically, because the single-core hard wire with terminals is relatively rigid, it can be directly assembled with the spring-locking electrical connector. Thus, the single-core hard wire with terminals can be directly inserted into the cavity 400 formed by the operating member 320 and the terminal block 310 through the terminal 121. Then, the single-core hard wire with terminals abuts against the free end 332 of the locking spring 330, so that the single-core hard wire with terminals passes through the gap between the free end 332 and the second side wall, and is then squeezed between the free end 332 and the second side wall, thereby achieving electrical connection between the single-core hard wire with terminals and the pin 200 through the conductive terminal block 310.

[0065] 2. Wire 1 is now assembled.

[0066] 3. Removing the wire: Use a flathead screwdriver to press into the operating component 320 and remove the wire 1. Specifically, the flathead screwdriver is inserted into the slot 3221 of the operating component 320 through the auxiliary interface 122, and then the operating component 320 is moved downward relative to the terminal block 310 to approach and squeeze the free end 332 of the locking spring 330, so that the free end 332 is away from the second side plate 314 of the terminal block 310, and then the wire 1 is pulled out from the gap between the free end 332 and the second side wall.

[0067] Example 2

[0068] refer to Figures 9A-9E When assembling multi-strand flexible wires:

[0069] 1. Press the operating component 320 into the slot 3221 of the operating component 320 using a flathead screwdriver. Specifically, the multi-strand flexible wire is too soft to be directly assembled with the spring-locking electrical connector. The flathead screwdriver is inserted into the slot 3221 of the operating component 320 through the auxiliary interface 122, and then drives the operating component 320 to move downward relative to the terminal block 310 to approach and press the free end 332 of the locking spring 330, thereby moving the free end 332 away from the second side plate 314 of the terminal block 310, thus increasing the gap between the free end 332 and the second side plate 314.

[0070] 2. Insert wire 1; specifically, a multi-strand flexible wire passes through the gap between the free end 332 and the second side plate 314.

[0071] 3. Loosen the screwdriver; specifically, after loosening the screwdriver, the free end 332 springs back on its own, so that the free end 332 approaches the second side plate 314 of the terminal block 310 to press the multi-strand wire.

[0072] 4. Wire 1 is now assembled;

[0073] 5. Removing the wire: Use a flathead screwdriver to press down the unlock button and remove the multi-strand wire. Specifically, the flathead screwdriver passes through the slot 3221 of the auxiliary interface 122 operating member 320, and then drives the operating member 320 downward relative to the terminal block 310 to approach and squeeze the free end 332 of the locking spring 330, thereby moving the free end 332 away from the second side plate 314 of the terminal block 310, and then pulling the multi-strand wire out from the gap between the free end 332 and the second side wall.

[0074] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent device transformations made based on the inventive concept of the present invention and the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A spring-loaded locking electrical connector, comprising an insulating housing, a pin, and a resilient locking assembly, wherein the resilient locking assembly and the pin are located inside the insulating housing, and the pin is connected to the resilient locking assembly, characterized in that: The elastic locking assembly includes a terminal block, an operating member, a locking spring, and a fixing spring. The terminal block is made of conductive material, and the pin is connected to the terminal block. The terminal block includes a base plate and a first side plate, a second side plate, and a third side plate disposed on the base plate. The first side plate, the second side plate, and the third side plate are connected in sequence, and the first side plate and the third side plate are disposed opposite to each other. The operating member, the base plate, the first side plate, the second side plate, and the third side plate form a cavity. The pin is connected to the base plate, and the operating member is fitted against the first side plate and the third side plate. The first side plate and the third side plate are provided with guide grooves, and the operating member can move up and down relative to the terminal block along the guide grooves. The terminal block has two tongues, which are respectively disposed on the first side plate and the end of the third side plate that is not connected to the second side plate. The locking spring has a fixed end and a free end. The fixed end of the locking spring is fixedly connected to the terminal block by riveting two tongues. The free end of the locking spring is housed in the cavity and abuts against the second side plate. The fixing spring includes an integrally formed fixing part and a bending part. The fixing part is fixedly connected to the terminal block by riveting two of the tongue pieces, and the bending part is snapped into the inner wall of the insulating shell. The operating member is driven to move up and down relative to the terminal block, causing the operating member to move away from or press against the free end of the locking spring, thereby causing the free end of the locking spring to move closer to or away from the second side plate, and thus the wire is pressed between the free end of the locking spring and the second side plate, or the free end of the locking spring releases the wire.

2. The spring-loaded locking electrical connector as described in claim 1, characterized in that, The tongue includes an integrally formed connecting part and an outwardly turned part. The fixed end of the locking spring and the fixing spring are sequentially sleeved on the connecting part. The outwardly turned part abuts against the side of the fixing spring away from the fixed end of the locking spring, so as to fix the fixing spring and the fixed end of the locking spring to the terminal block.

3. The spring-loaded locking electrical connector as described in claim 2, characterized in that, The outward-curving portion of the tongue is obtained by riveting the connecting portion.

4. The spring-loaded locking electrical connector as described in claim 1, characterized in that, The second side plate is provided with a riveting support hole, which is used to allow the support member to extend into the terminal block when the tongue is riveted, so as to support the terminal block.

5. The spring-loaded locking electrical connector as described in claim 1, characterized in that, The pin is riveted to the base plate.

6. The spring-loaded locking electrical connector as described in claim 1, characterized in that, The inner wall of the insulating housing is provided with a groove, and the fixing spring includes an integrally formed fixing part and a bending part. The fixing part is connected to the terminal block, and the bending part is engaged in the groove.

7. The spring-loaded locking electrical connector as described in claim 1, characterized in that, The locking spring also includes a bent transition portion for connecting the fixed end and the free end, and the inner sidewall of the insulating housing is provided with a protrusion for supporting the bent transition portion.

8. The spring-loaded locking electrical connector as described in claim 1, characterized in that, The upper end of the insulating housing has a wiring terminal with multiple wiring ports for inserting the wire. The lower end of the insulating housing has a plug-in end for connecting to another electrical appliance or a terminal block. The insulating housing has a wiring cavity, and the wiring ports and the plug-in end are respectively connected to the wiring cavity. The elastic locking component is disposed in the wiring cavity, and the pin is disposed in the wiring cavity, with the pin portion extending into the wiring cavity and connecting to the terminal block.

Images