Quick connect terminal, switch and socket

Abstract

The application relates to the field of low-voltage electrical apparatuses, and particularly discloses a quick-connecting terminal, a switch and a socket. The quick-connecting terminal comprises a wire insertion sleeve and a fastening spring sheet arranged in the wire insertion sleeve. The wire insertion sleeve comprises a bottom plate, support plates fixedly connected to the top wall of the bottom plate on both sides, and wire pressing plates fixedly connected to the top of the two support plates respectively. The wire pressing plate comprises a top cover fixedly connected to the support plate and a limiting plate fixedly connected to the side of the top cover away from the support plate. The two top covers extend to the opposite side. The fastening spring sheet comprises a base plate fixed to the bottom plate, an elastic clamping sheet connected to the side of the base plate close to the wire inlet, and a fixed plate fixedly connected to the side of the base plate away from the elastic clamping sheet. The side wall of the support plate is fixedly connected with an abutting block for fixing the base plate. The abutting block is arranged on the side close to the bottom of the elastic clamping sheet. The application has the effects of saving labor and ensuring stable clamping.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical appliances, and more particularly to a quick-connect terminal, switch, and socket. Background Technology

[0002] In modern furniture installation, wall appliances such as switches and sockets are essential components. The performance of the electrical connection terminals inside, which are used to connect power cords, directly affects electrical safety, installation efficiency, and reliability.

[0003] Traditional electrical connection terminals typically consist of a fastening screw and a wire insert. Tightening the screw compresses the cable, forcing it into contact with the conductive plate. However, this method is cumbersome and labor-intensive when wiring multiple terminals. Furthermore, the tightness of the screws depends on the installer's experience; both excessively loose and excessively tight screws can pose safety hazards.

[0004] To address these issues, various quick-connect terminals have emerged on the market. One type employs a spring-loaded structure, where a retaining spring is placed inside the wire socket, clamping the wire through pressure generated by elastic deformation. However, the following problems still exist: in order to ensure effortless operation, the elastic spring may lack sufficient clamping force, making the wire prone to loosening; for terminals that need to clamp multiple wires simultaneously, using only a single spring can result in one wire being clamped while another is loose, affecting the reliability of the contact. Utility Model Content

[0005] To improve the stability of quick-connect terminals, this application provides a quick-connect terminal, switch, and socket.

[0006] Firstly, the quick-connect terminal provided in this application adopts the following technical solution: A quick-connect terminal includes a wire socket and a fastening spring disposed inside the wire socket. The wire socket includes a base plate, support plates fixedly connected to both sides of the top wall of the base plate, and wire clamping plates fixedly connected to the top of the support plates on both sides. The wire clamping plate includes a top cover fixedly connected to the support plates and a limiting plate fixedly connected to the top cover on the side away from the support plates. The top covers on both sides extend towards each other. The fastening spring includes a base plate fixed to the base plate, an elastic clamping piece connected to the base plate on the side near the wire inlet, and a fixing plate fixedly connected to the base plate on the side away from the elastic clamping piece. An abutment block for fixing the base plate is fixedly connected to the side wall of the support plate. The abutment block is disposed on the side near the bottom of the elastic clamping piece.

[0007] By adopting the above technical solution, since the abutment block is set on the side close to the root of the elastic plate, when clamping, the pushing force of the wire on the clamping position will be converted into a larger torque on the fulcrum, thereby making the spring plate generate a larger self-locking clamping force on the wire, making the contact more reliable and the shock resistance better, thus ensuring that the wire is not easy to loosen during the clamping process.

[0008] Optionally, the limiting plate includes a front abutment plate and a rear abutment plate, which are arranged sequentially along the wire inlet direction. The front abutment plate is bent toward the side near the elastic clamping piece, and the side of the front abutment plate near the rear abutment plate has an abutment surface that abuts against the outer wall of the elastic clamping piece.

[0009] By adopting the above technical solution, when the wiring angle of the wire socket changes, the fastening spring is prone to sliding due to gravity, while the front abutment plate can abut against the elastic clamping piece, thereby preventing the fastening spring from sliding out of the wire socket's inlet end.

[0010] Optionally, a bending guide groove is provided between the front abutment plate and the rear abutment plate.

[0011] By adopting the above technical solution, the front abutment plate can be bent downwards more easily, making it easier to process.

[0012] Optionally, a dividing groove is provided in the middle of the elastic clamping piece, which divides the elastic clamping piece into two clamping pieces. Each of the two clamping pieces is connected to a clamping part and a pressing part at its top. The pressing part is located on one side of the two clamping pieces facing each other, and a pressing interval is formed between adjacent front abutment plates. The pressing part is directly opposite the pressing interval.

[0013] By adopting the above technical solution, after being divided into two clamping pieces, the two pieces can move independently. When two wires of different thicknesses or that are not parallel are inserted, the clamping pieces can adaptively adjust to ensure that each wire is clamped. The pressing part is directly opposite the pressing interval, allowing the user to press down both clamping pieces simultaneously, thus facilitating operation.

[0014] Optionally, the pressing portion extends away from the connection between the elastic clamping piece and the substrate.

[0015] By adopting the above technical solution, the distance between the pressing part and the fulcrum can be the longest, achieving the largest lever arm, which makes it easier for users to press and the pressing process is more labor-saving.

[0016] Optionally, the fixing plate includes a connecting plate fixedly connected to the base plate and a relief plate fixedly connected to the connecting plate, the relief plate being inclined toward the side away from the elastic clamping piece.

[0017] By adopting the above technical solution, the positioning plate is tilted to provide sufficient downward pressure space for the elastic clamping piece, so that when the user presses the elastic clamping piece, the fixing plate will not interfere with the movement path of the elastic clamping piece, making the installation process smoother.

[0018] Optionally, each of the two support plates on the side away from the abutment block is fixedly connected with a limiting block for abutting the connecting plate, and the two limiting blocks on the sides extend toward the opposite side.

[0019] By adopting the above technical solution, the limiting block, the front abutment plate, and the abutment block work together to form a clamping structure, thereby preventing the entire fastening spring from loosening, tilting, or shifting under vibration or frequent insertion and removal, ensuring the stability and safety of long-term use.

[0020] Optionally, the top cover is arc-shaped.

[0021] By adopting the above technical solutions, the feel of inserting the wire is optimized, and the arc surface can better guide the wire, reducing wear and scratches on the wire insulation.

[0022] Secondly, the switch provided in this application adopts the following technical solution. A switch includes a switch base, a fixed base disposed inside the switch base, a rotating base connected to the top of the fixed base, a rocker arm passing through and rotatably connected to the rotating base, a switch panel snapped into the switch base, a button rotatably connected to the rotating base, the aforementioned quick-connect terminals, and a contact assembly connected to the quick-connect terminals. The quick-connect terminals are provided in a plurality of units. The contact assembly includes a movable contact connected to the rocker arm, a stationary contact fixedly connected to an electrical wire socket, and a positioning sleeve electrically connected to the movable contact. The movable contact passes through and rotatably connects to the positioning sleeve. A first pressing head for pressing a fastening spring is connected to the side wall of the fixed base.

[0023] Thirdly, the socket provided in this application adopts the following technical solution. A socket includes a socket base, a socket panel fixedly connected to the top of the socket base, a plug sleeve snapped into the socket panel, a guide seat disposed inside the socket base, the aforementioned quick-connect terminal, and a clamping sleeve fixedly connected to the quick-connect terminal. A second pressing head for pressing a fastening spring is fixedly connected to the side wall of the guide seat, and a third pressing head for pressing a fastening spring is rotatably connected to the socket base.

[0024] In summary, this application has the following beneficial effects: 1. By moving the position of the abutment block forward, the fastening spring has greater rigidity, which can achieve a better clamping effect.

[0025] 2. Extend the distance from the pressing part to the root of the elastic clamping piece to extend the lever arm and achieve labor-saving operation. Attached Figure Description

[0026] Figure 1 This is an exploded view of the switch in Embodiment 1 of this application; Figure 2 This is a schematic diagram of the switch structure of Embodiment 1 of this application; Figure 3 This is a schematic diagram of the quick-connect terminal of Embodiment 1 of this application; Figure 4 This is an exploded view of the quick-connect terminal of Embodiment 1 of this application; Figure 5 This is a cross-sectional view of the quick-connect terminal of Embodiment 1 of this application; Figure 6 This is an exploded view of the quick-connect terminal and the mounting base of Embodiment 1 of this application; Figure 7 This is a schematic diagram of the structure of the switch without the base in Embodiment 1 of this application; Figure 8 This is an exploded view of the socket in Embodiment 2 of this application; Figure 9 This is an exploded view of the quick-connect terminal and guide seat of Embodiment 2 of this application; Figure 10 This is a schematic diagram of the socket base of Embodiment 2 of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Wire socket; 11. Base plate; 12. Support plate; 121. Abutment block; 122. Limiting block; 13. Wire pressing plate; 131. Top cover; 132. Limiting plate; 1321. Front abutment plate; 1322. Rear abutment plate; 1323. Abutment surface; 1324. Bending guide groove; 1325. Pressing interval; 2. Fastening spring; 21. Base plate; 22. Elastic clamping piece; 221. Dividing groove; 222. Clamping piece; 223. Clamping 224. Pressing part; 23. Fixing plate; 231. Connecting plate; 232. Leaving plate; 3. Switch base; 31. Fixing seat; 311. First pressing head; 32. Rotating seat; 33. Rocker arm; 34. Button; 4. Switch panel; 5. Contact assembly; 51. Moving contact; 52. Stationary contact; 53. Positioning sleeve; 6. Socket base; 61. Guide seat; 611. Second pressing head; 62. Third pressing head; 7. Socket panel; 71. Socket sleeve; 8. Clamping sleeve. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0029] This application discloses a quick-connect terminal, a switch, and a socket.

[0030] Example 1: Reference Figure 1 , Figure 2 and Figure 3 A switch includes a switch base 3, a fixed seat 31 fixedly connected inside the switch base 3, a rotating seat 32 fixedly connected to the top of the fixed seat 31, a rocker arm 33 passing through and rotatably connected to the rotating seat 32, a switch panel 4 snapped into the opening of the switch base 3, a button 34 rotatably connected to the rotating seat 32 for swinging the rocker arm 33, a quick-connect terminal for connecting to an electrical wire, and a contact assembly 5 connected to the quick-connect terminal. The quick-connect terminal is provided with three terminals for connecting to the live wire, the neutral wire, and the ground wire, respectively.

[0031] Reference Figure 3 , Figure 4 The quick-connect terminal includes a wire socket 1 and a fastening spring 2 fixed inside the wire socket 1 for fastening the wire. The wire socket 1 includes a base plate 11, support plates 12 fixedly connected to both sides of the top wall of the base plate 11, and pressure plates 13 fixedly connected to the top of the support plates 12 on both sides. The pressure plates 13 include a top cover 131 fixedly connected to the support plates 12 and a limiting plate 132 fixedly connected to the top cover 131 away from the support plates 12. The two limiting plates 132 are arranged facing each other. The fastening spring 2 includes a base plate 21 fixed to the surface of the base plate 11, an elastic clamping piece 22 connected to the base plate 21 near the wire inlet, and a fixing plate 23 fixedly connected to the base plate 21 away from the elastic clamping piece 22. An abutment block 121 for fixing the base plate 21 is fixedly connected to the side wall of the support plate 12. The abutment block 121 is located near the bottom of the elastic clamping piece 22.

[0032] When the wire is plugged in, a space for the power supply wire can be formed between the elastic clamping piece 22 and the top cover 131. By pressing down the elastic clamping piece 22, the space for wire insertion is expanded. After the wire is inserted, the elastic clamping piece 22 is released, and the elastic clamping piece 22 can automatically return to its original position and clamp, thereby fixing the wire and achieving faster installation efficiency.

[0033] During the downward pressing process, the base plate 11 is subjected to force, causing the end near the elastic clamping piece 22 to tend to tilt upwards. This gives the entire fastening spring 2 better flexibility, but it may deform after prolonged pressing, affecting the overall clamping effect. Therefore, the abutment block 121 is placed on the side near the bottom of the elastic clamping piece 22, so that the end of the base plate 11 near the elastic clamping piece 22 is completely pressed down, thereby enhancing the rigidity of the overall structure, preventing deformation, and the greater rigidity results in a greater and faster rebound force, leading to a better clamping effect.

[0034] Reference Figure 3 , Figure 4The limiting plate 132 includes a front abutment plate 1321 and a rear abutment plate 1322, which are arranged sequentially along the wire inlet direction. The front abutment plate 1321 is bent towards the side closer to the elastic clamping piece 22, and the two rear abutment plates 1322 extend towards each other. The front abutment plate 1321 bends downward to form a U-shaped structure with the support plate 12 and the top cover 131, allowing the copper core of the wire to better contact the wire socket 1 and facilitating wire guidance, thus improving installation efficiency. The two rear abutment plates 1322 are arranged facing each other, ensuring that the wire socket 1 maintains its overall structural state and is less prone to deformation when installing the wire socket 1 and the fastening spring 2.

[0035] Reference Figure 3 , Figure 4 A bending guide groove 1324 is provided between the front abutment plate 1321 and the rear abutment plate 1322. The bending guide groove 1324 creates a gap between the front abutment plate 1321 and the rear abutment plate, thereby facilitating the downward bending of the front abutment plate 1321 and improving processing efficiency.

[0036] Reference Figure 4 , Figure 5 The front abutment plate 1321 has an abutment surface 1323 on the side near the rear abutment plate 1322 that abuts against the outer wall of the elastic clamping piece 22. Since the front abutment plate 1321 abuts against the surface of the elastic clamping piece 22, it can limit the elastic clamping piece 22. When the installation angle of the overall switch panel 4 changes, the fastening spring 2 will not slide along the base plate 11, achieving a better fixing effect.

[0037] Reference Figure 3 , Figure 4 The elastic clamping piece 22 has a dividing groove 221 in the middle, which divides the elastic clamping piece 22 into two clamping pieces 222. The top of each clamping piece 222 is connected to a clamping part 223 and a pressing part 224. The pressing part 224 is located on the opposite side of the two clamping pieces 222. A pressing interval 1325 is formed between adjacent front abutment plates 1321, and the pressing part 224 is directly opposite the pressing interval 1325.

[0038] The dividing groove 221 divides the elastic clamping piece 22 into two clamping pieces 222. These two pieces 222 can move independently. When two wires of different thicknesses or that are not parallel are inserted, the clamping pieces can adaptively adjust, ensuring that each wire is stably clamped. The pressing parts 224 are positioned facing each other on one side and directly opposite the pressing interval 1325, allowing the user to press down both clamping pieces 222 simultaneously when inserting wires, thereby improving installation efficiency.

[0039] Reference Figure 3 , Figure 4 and Figure 5 The pressing part 224 extends away from the connection between the elastic clamping piece 22 and the substrate 21. This allows for the longest possible distance between the pressing part 224 and the fulcrum, thereby maximizing the lever arm, making it easier for the user to press, and making the pressing process more effortless.

[0040] Reference Figure 4 , Figure 5 The fixing plate 23 includes a connecting plate 231 fixedly connected to the base plate 11 and a relief plate 232 fixedly connected to the connecting plate 231. The relief plate 232 is inclined away from the elastic clamping piece 22. The inclined setting of the relief plate 232 provides sufficient downward pressure space for the elastic clamping piece 22. During the installation of the wire, the downward pressure of the elastic clamping piece 22 will not interfere with the fixing plate 23, thus making the installation process smoother.

[0041] Reference Figure 5 , Figure 6 Both sides of the support plates 12 are fixedly connected to a limiting block 122 for abutting the connecting plate 231 on the side away from the abutting block 121, and the limiting blocks 122 on both sides extend to the opposite side. The limiting blocks 122, together with the front abutting plate 1321 and the abutting block 121, form a three-sided clamping structure, thereby preventing the entire fastening spring 2 from loosening, tilting or shifting under vibration or frequent insertion and removal, ensuring the stability and safety of long-term use.

[0042] Reference Figure 6 , Figure 7 The contact assembly 5 includes a movable contact 51 connected to the rocker arm 33, a stationary contact 52 fixedly connected to the wire socket 1, and a positioning sleeve 53 electrically connected to the movable contact 51. The movable contact 51 passes through and is rotatably connected to the positioning sleeve 53. The fixed base 31 is connected with three first pressing heads 311 according to the position and number of quick-connect terminals. The root of the first pressing head 311 is elastically bent and connected to the side wall of the fixed base 31. Since the first pressing head 311 is directly integrated into the fixed base 31, the user can achieve automatic positioning of the first pressing head 311 and quick-connect terminals by installing the fixed base 31 during the assembly process, without the need for additional repeated positioning and installation of the first pressing head 311, resulting in better installation effect.

[0043] The implementation principle of the switch in Embodiment 1 of this application is as follows: When installing the wire, pressing the first pressing head 311 causes the elastic clamping piece 22 to bend. At this time, a space for inserting the power supply wire is formed between the clamping part 223 and the top cover 131. After inserting the wire, the first pressing head 311 is released. At this time, the two clamping pieces 222 are reset and adaptively adjusted according to the size of the wire, thereby completing the tight clamping of the wire.

[0044] Example 2: Reference Figure 8 , Figure 9 and Figure 10 A socket includes a socket base 6, a socket panel 7 fixedly connected to the top of the socket base 6, a plug 71 snapped into the socket panel 7, a guide seat 61 disposed inside the socket base 6, a quick-connect terminal disposed at the bottom of the guide seat 61, and a clamping sleeve 8 fixedly connected to the quick-connect terminal for clamping electrical contact pieces. A second pressing head 611 for pressing a fastening spring 2 is connected to the side wall of the guide seat 61, and a third pressing head 62 for pressing a fastening spring 2 is rotatably connected to the socket base 6.

[0045] The implementation principle of the socket in Embodiment 2 of this application is as follows: When installing the wire, pressing the second pressing head 611 and the third pressing head 62 causes the elastic clamping piece 22 in the different wire plug sleeves 1 to bend. At this time, a space for inserting the power supply wire is formed between the clamping part 223 and the top cover 131. After inserting the wire in sequence, the second pressing head 611 and the third pressing head 62 are released. At this time, the two clamping pieces 222 are reset and adaptively adjusted according to the size of the wire, thereby completing the tight clamping of the wire.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-connect terminal, comprising a wire socket (1) and a fastening spring (2) disposed inside the wire socket (1), characterized in that: The wire socket (1) includes a base plate (11), a support plate (12) fixedly connected to both sides of the top wall of the base plate (11), and a pressure plate (13) fixedly connected to the top of the support plates (12) on both sides respectively. The pressure plate (13) includes a top cover (131) fixedly connected to the support plate (12) and a limiting plate (132) fixedly connected to the side of the top cover (131) away from the support plate (12). The top covers (131) on both sides extend to the opposite side. The fastening spring (2) includes a base plate (21) fixed to the base plate (11), an elastic clamping piece (22) connected to the side of the base plate (21) near the wire inlet, and a fixing plate (23) fixedly connected to the side of the base plate (21) away from the elastic clamping piece (22). The side wall of the support plate (12) is fixedly connected to an abutment block (121) for fixing the base plate (21). The abutment block (121) is located near the bottom of the elastic clamping piece (22).

2. The quick-connect terminal according to claim 1, characterized in that: The limiting plate (132) includes a front abutment plate (1321) and a rear abutment plate (1322). The front abutment plate (1321) and the rear abutment plate (1322) are arranged sequentially along the wire inlet direction. The front abutment plate (1321) is bent toward the side close to the elastic clamping piece (22). The side of the front abutment plate (1321) close to the rear abutment plate (1322) is provided with an abutment surface (1323) that abuts against the outer wall of the elastic clamping piece (22).

3. The quick-connect terminal according to claim 2, characterized in that: A bending guide groove (1324) is provided between the front abutment plate (1321) and the rear abutment plate (1322).

4. The quick-connect terminal according to claim 2, characterized in that: The elastic clamping piece (22) has a dividing groove (221) in the middle, which divides the elastic clamping piece (22) into two clamping pieces (222). The top of each clamping piece (222) is connected to a clamping part (223) and a pressing part (224). The pressing part (224) is located on the opposite side of the two clamping pieces (222), and a pressing interval (1325) is formed between adjacent front abutment plates (1321). The pressing part (224) is directly opposite the pressing interval (1325).

5. The quick-connect terminal according to claim 4, characterized in that: The pressing part (224) extends away from the connection between the elastic clamping piece (22) and the substrate (21).

6. The quick-connect terminal according to claim 1, characterized in that: The fixing plate (23) includes a connecting plate (231) fixedly connected to the base plate (11) and a relief plate (232) fixedly connected to the connecting plate (231), the relief plate (232) being inclined toward the side away from the elastic clamping piece (22).

7. The quick-connect terminal according to claim 6, characterized in that: Both sides of the support plate (12) are fixedly connected to a limiting block (122) for abutting the connecting plate (231) on the side away from the abutting block (121), and the limiting blocks (122) on both sides extend to the opposite side.

8. The quick-connect terminal according to claim 1, characterized in that: The top cover (131) is arc-shaped.

9. A switch, characterized in that, The device includes a switch base (3), a fixed seat (31) disposed inside the switch base (3), a rotating seat (32) connected to the top of the fixed seat (31), a rocker arm (33) passing through and rotatably connected to the rotating seat (32), a switch panel (4) snapped into the switch base (3), a button (34) rotatably connected to the rotating seat (32), a quick-connect terminal as described in any one of claims 1-8, and a contact assembly (5) connected to the quick-connect terminal. The quick-connect terminal is provided in a plurality of units. The contact assembly (5) includes a movable contact (51) connected to the rocker arm (33), a stationary contact (52) fixedly connected to the wire plug (1), and a positioning sleeve (53) electrically connected to the movable contact (51). The movable contact (51) passes through and rotatably connected to the positioning sleeve (53). The side wall of the fixed seat (31) is connected to a first pressing head (311) for pressing the fastening spring (2).

10. A socket, characterized in that, The socket includes a socket base (6), a socket panel (7) fixedly connected to the top of the socket base (6), a plug (71) snapped into the socket panel (7), a guide seat (61) disposed inside the socket base (6), a quick-connect terminal as described in any one of claims 1-8, and a clamping sleeve (8) fixedly connected to the quick-connect terminal. The guide seat (61) has a second pressing head (611) fixedly connected to its side wall for pressing the fastening spring (2), and the socket base (6) has a third pressing head (62) rotatably connected to the fastening spring (2).

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