Double-linked linkage switch device and electrical equipment

Abstract

The present invention discloses a double-connected linkage switch device and an electrical equipment, which include a circuit board, connection terminals, a moving component, a linkage rod and a power shaft. The circuit boards are stacked. The circuit board is provided with a first lead and a second lead. The circuit board is provided with a moving channel. One end of the linkage rod is rotatably connected to a pushing member, and the other end of the linkage rod passes through the moving channel and is rotatably connected to the connection terminal on the adjacent circuit board. The linkage rod can rotate based on the connection terminal so that the linkage rod contacts or moves away from the second lead. The pushing member can move following the rotation of the linkage rod and push the electrode to press against or move away from the power shaft, so that the power shaft is connected to or moves away from the first lead. The switch device in the present invention takes power in a parallel connection manner, reduces the line loss and voltage drop caused by the convergence of printed current, and saves energy; and the circuit boards are stacked and arranged, reducing the volume of the switch and the occupied space, being able to adapt to different application scenarios for design, and facilitating the design and development of products.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment and switching elements, and in particular, to a double-linked linkage switch and an electrical device. Background Art

[0002] A switch refers to an electronic component that can open a circuit, interrupt current, or conduct other circuits, enabling the opening and closing of a circuit, and has been widely used in electrical equipment in various fields. The traditional way of conducting electricity between different components through PCB series connection results in a large current flowing through the circuit, which easily causes an increase in line loss and voltage drop, and occupies a large space in the PCB board design, increasing the difficulty of product design and being unfavorable for product design and development. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a double-linked linkage switch device and an electrical device, which can overcome the defects of large switch line loss and voltage drop, and large occupied design space.

[0004] In a first aspect, an embodiment of the present invention provides a double-linked linkage switch device, including:

[0005] A circuit board, with at least two circuit boards stacked, and a first lead and a second lead are provided on the circuit board;

[0006] A connection terminal, which is fixed on the circuit board and is electrically connected to the circuit board;

[0007] A moving component, which includes a pushing member and an electrode connected to the pushing member;

[0008] A linkage rod, a moving channel is provided on the circuit board, one end of the linkage rod is rotatably connected to the pushing member, and the other end of the linkage rod passes through the moving channel and is rotatably connected to the connection terminal on the adjacent circuit board;

[0009] A power shaft, which passes through the circuit board;

[0010] The linkage rod can rotate based on the connection terminal, so that the linkage rod contacts or moves away from the second lead, and the pushing member can move following the rotation of the linkage rod and push the electrode to press against or move away from the power shaft, so that the power shaft is connected to or moves away from the first lead.

[0011] The double-linked linkage switch device in the embodiment of the present invention has at least the following beneficial effects:

[0012] In the double - linked linkage switch device in the embodiments of the present invention, through the rotation of the linkage rod, the linkage rod contacts or moves away from the second lead, and the electrode crimps or moves away from the power shaft. Thus, the circuit between the first lead and the second lead of different circuit boards is conducted or disconnected. Taking power in a parallel manner reduces the line loss and voltage drop caused by current convergence, saving energy. Moreover, the circuit boards are arranged in an overlapping manner, greatly reducing the volume of the switch and the occupied space, lowering the requirements for the space of the use environment, being able to better adapt to the design of different scenario applications, and facilitating the design and development of products.

[0013] For the double - linked linkage switch device according to some other embodiments of the present invention, when the adjacent circuit boards approach or move away from each other, the linkage rod is driven to rotate.

[0014] For the double - linked linkage switch device according to some other embodiments of the present invention, the electrode has a crimping end, and the crimping end is in a concave shape. When the electrode crimps the power shaft, the crimping end wraps the power shaft.

[0015] For the double - linked linkage switch device according to some other embodiments of the present invention, the electrode further has a connection end, and the connection end is fixedly connected to the pushing member.

[0016] For the double - linked linkage switch device according to some other embodiments of the present invention, a clamping plate is fixed on the circuit board. The connection end and the crimping end are respectively arranged on both sides of the clamping plate, and an elastic member is arranged between the clamping plate and the connection end.

[0017] For the double - linked linkage switch device according to some other embodiments of the present invention, the electrode further has a sleeved section, the connection end and the crimping end are connected to both ends of the sleeved section, and the elastic member is sleeved on the sleeved section and can elastically expand and contract along the sleeved section.

[0018] For the double - linked linkage switch device according to some other embodiments of the present invention, the pushing member has a first connection section and a second connection section. The first connection section has a number of protruding ends, and each protruding end is connected with the electrode. The second connection section is provided with a clamping groove, and the end of the linkage rod is clamped into the clamping groove.

[0019] For the double - linked linkage switch device according to some other embodiments of the present invention, a pushing channel is provided on the circuit board, a thimble is installed on the pushing member, the thimble extends into the pushing channel and can move in the pushing channel following the movement of the pushing member. A number of positioning holes are provided on the pushing member, and the thimble is inserted into the positioning holes.

[0020] The double - linked linkage switch device according to other embodiments of the present invention, each of the circuit boards is connected with two of the linkage rods, the linkage rods are centrosymmetric with respect to the center of the circuit board, the linkage rod includes a rotating section, and protrusions are provided at both ends of the rotating section.

[0021] In a second aspect, an electrical device according to an embodiment of the present invention includes the above - mentioned double - linked linkage switch.

[0022] The electrical device according to the embodiment of the present invention has at least the following beneficial effects:

[0023] The circuit boards are stacked, occupying a small space. Power is taken in a parallel manner, reducing line loss and voltage drop, and improving the electrical performance of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the first embodiment of the double - linked linkage switch device in the expanded state;

[0025] Figure 2 It is a schematic structural diagram of the first embodiment of the double - linked linkage switch device in the compressed state;

[0026] Figure 3 It is a schematic structural diagram of the linkage rod and the moving component of the double - linked linkage switch device in the expanded state;

[0027] Figure 4 It is a schematic structural diagram of the linkage rod and the moving component of the double - linked linkage switch device in the contracted state;

[0028] Figure 5 It is a schematic structural diagram of an embodiment of the moving component;

[0029] Figure 6 It is a schematic structural diagram of an embodiment of the electrode;

[0030] Figure 7 It is a schematic structural diagram of an embodiment of the pushing member;

[0031] Figure 8 It is a schematic structural diagram of an embodiment of the circuit board;

[0032] Figure 9 It is a schematic structural diagram of an embodiment of the linkage rod;

[0033] Figure 10 It is a schematic structural diagram of the second embodiment of the double - linked linkage switch device;

[0034] Figure 11 It is a schematic structural diagram of the third embodiment of the double - linked linkage switch device. DETAILED DESCRIPTION OF THE INVENTION

[0035] The concept of the present invention and the resulting technical effects will be clearly and completely described below in conjunction with the embodiments to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0036] In the description of the embodiments of the present invention, if orientation descriptions are involved, such as "upper", "lower", "front", "rear", "left", "right", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] In the description of the embodiments of the present invention, if a certain feature is described as "arranged", "fixed", "connected", "installed" on another feature, it can be directly arranged, fixed, connected, or installed on another feature, or indirectly arranged, fixed, connected, or installed on another feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one; if "multiple" is involved, it means more than two; if "greater than", "less than", "exceeding" are involved, they should all be understood as not including the number itself; if "above", "below", "within" are involved, they should all be understood as including the number itself. If "first", "second" are involved, it should be understood as being used to distinguish technical features, rather than indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0038] First Embodiment

[0039] Figure 1 is a schematic structural diagram of an embodiment of a double-linked linkage switch device. Refer to Figure 1, in this embodiment, the double-linked linkage switch device includes a circuit board 100, a connection terminal 110, a moving component 300, a linkage rod 200, and a power shaft 400. There are no less than two circuit boards 100, and the circuit boards 100 are stacked. In this embodiment, there are three circuit boards 100, and the number of circuit boards 100 can be flexibly changed according to actual usage requirements; the connection terminal 110 is fixed on the circuit board 100 and is electrically connected to the circuit board 100. The connection terminal 110 is used to connect with the linkage rod 200 to realize the connection of the linkage rod 200 between adjacent circuit boards 100; a moving channel 120 is provided on the circuit board 100 for the linkage rod 200 to pass through, so that the linkage rod 200 extends to the adjacent circuit board 100; the moving component 300 includes a pushing member 310 and an electrode 320 connected to the pushing member 310. The power shaft 400 passes through the circuit board 100 and sequentially passes through all the circuit boards 100. One end of the linkage rod 200 is connected to the pushing member 310, and the other end of the linkage rod 200 passes through the moving channel 120 and is rotatably connected to the connection terminal 110 on the adjacent circuit board 100; a first lead 130 and a second lead 140 are provided on the circuit board 100. The linkage rod 200 can rotate based on the connection terminal 110. When one end of the linkage rod 200 rotates based on the connection terminal 110 on the lower-layer circuit board 100, the other end of the linkage rod 200 moves along the circuit board 100 adjacent to and above this circuit board 100, so that the linkage rod 200 contacts or moves away from the second lead 140. When the linkage rod 200 contacts the second lead 140, through the transitional action of the linkage rod 200, the second leads 140 between adjacent circuit boards 100 form a circuit conduction. When the linkage rod 200 moves away from the second lead 140, the circuit of the second leads 140 between adjacent circuit boards 100 is disconnected; because the linkage rod 200 is connected to the pushing member 310, when the linkage rod 200 rotates, it can push the pushing member 310 to move, and the pushing member 310 further pushes the electrode 320 to move, so that the electrode 320 approaches or moves away from the power shaft 400. When the electrode 320 contacts and presses the power shaft 400, the power shaft 400 makes a slight movement under the pressing action of the electrode 320 and forms a circuit conduction with the first lead 130, thereby realizing the electrical connection of the second leads 140 between different circuit boards 100. When the electrode 320 moves away from the power shaft 400, the pressing action of the electrode 320 on the power shaft 400 disappears, and the path between the power shaft 400 and the second lead 140 is disconnected, and the circuit between the second leads 140 of adjacent circuit boards 100 is disconnected.

[0040] In the double - linked linkage switch device of the present invention, through the rotation of the linkage rod 200, the linkage rod 200 contacts or moves away from the second lead 140, and the electrode 320 presses or moves away from the power shaft 400, thereby realizing the conduction and disconnection of the circuit between the first lead 130 and the second lead 140 of different circuit boards 100. Taking power in parallel reduces the line loss and voltage drop caused by current convergence, saving energy; and the circuit boards 100 are arranged in an overlapping manner, greatly reducing the volume of the switch and the occupied space, reducing the requirements for the space of the use environment, being able to better adapt to the design of different scenario applications, and facilitating the design and development of products.

[0041] The circuit board 100 in this embodiment can adopt a conventional PCB board, which is easy to obtain and has a low cost; the first lead 130 can be set as a signal transmission line, and the second lead 140 can be set as a power transmission line. By connecting the first lead 130 and the second lead 140 between different circuit boards 100, the signal and power conduction between different circuit boards 100 can be realized simultaneously, achieving a double - linked effect. The electrode 320, the power shaft 400, and the linkage rod 200 are all made of conductive materials to play an electrical conduction role; the power shaft 400 in this embodiment can be set as a rod - shaped or wire - shaped. When the power shaft 400 is pressed by the electrode 320 and contacts the first lead 130, the conduction of the first lead 130 between adjacent circuit boards 100 can be realized. In some embodiments, two linkage rods 200 are provided, and the two linkage rods 200 are symmetrically arranged with respect to the center of the circuit board 100, improving the overall stability and balance performance of the switch when the linkage rod 200 rotates. The connecting terminal 110 is provided with a rotating groove 111 for the end of the linkage rod 200 to be inserted, realizing the rotational connection between the linkage rod 200 and the connecting terminal 110; two second leads 140 are arranged on the circuit board 100, facilitating the conduction between the two linkage rods 200 and the second leads 140 respectively; the pusher 310 is inside the two second leads 140, preventing the pusher 310 from interfering with the second lead 140 during the movement process and affecting the movement of the pusher 310.

[0042] It should be noted that referring to Figure 3 and Figure 4 , between adjacent circuit boards 100, they are close (contracted state, such as Figure 2 , Figure 4 ) or far away (extended state, such as Figure 1 , Figure 3) When the time comes, the linkage rod 200 rotates based on the connection terminal 110 under the pressure of the circuit board 100 to realize the on / off of the first lead 130 and the second lead 140 between different circuit boards 100. When the circuit boards 100 in this embodiment approach each other, the linkage rod 200 moves away from the second lead 140, and the electrode 320 moves away from the power shaft 400, and the circuit between adjacent circuit boards 100 is not conducting; when adjacent circuit boards 100 move away from each other, the linkage rod 200 approaches the second lead 140, and the electrode 320 approaches the power shaft 400. When the linkage rod 200 contacts the second lead 140 and the electrode 320 crimps the power shaft 400, the signal and circuit between the circuit boards 100 are conducting. The conduction mode between the circuit boards 100 is not limited to this, and it can also be connected in the contracted state and disconnected in the extended state, which can be adjusted according to actual usage requirements.

[0043] Referring to Figure 5 With Figure 6 , in this embodiment, the electrode 320 has a crimping end 321, and the crimping end 321 is concave. When the electrode 320 crimps the power shaft 400, the crimping end 321 wraps the power shaft 400 to achieve stable contact between the crimping end 321 and the power shaft 400, so that the crimping end 321 can continuously provide a pressing force to the power shaft 400, keeping the power shaft 400 and the first lead 130 in electrical conduction. In some embodiments, the cross-section of the crimping end 321 can be set as an arc, and the cross-section of the power shaft 400 is circular, thereby improving the stability of the contact between the inner surface of the crimping end 321 and the surface of the power shaft 400.

[0044] The electrode 320 also has a connection end 322, which is fixedly connected to the pusher 310. In this embodiment, the connection end 322 is inserted into the pusher 310 to achieve the fixation of the two. A clamping plate 170 is fixed on the circuit board 100. The connection end 322 and the crimping end 321 are respectively arranged on both sides of the clamping plate 170. An elastic member 323 is arranged between the clamping plate 170 and the connection end 322. When the pusher 310 pushes the electrode 320 to move, the connection end 322 approaches or moves away from the clamping plate 170, and the connection end 322 and the clamping plate 170 apply a force to the elastic member 323 to realize the expansion and contraction of the elastic member 323. The electrode 320 in this embodiment also has a socket section 324. The two ends of the socket section 324 are respectively connected to the connection end 322 and the crimping end 321. The elastic member 323 is sleeved on the socket section 324 and elastically expands and contracts along the socket section 324 during the process of the connection end 322 approaching the clamping plate 170. Specifically, when the connection end 322 approaches the clamping plate 170, the crimping end 321 continuously moves away from the clamping plate 170 and gradually approaches the power shaft 400. During this process, under the pressing force of the connection end 322 and the clamping plate 170, the elastic member 323 contracts along the socket section 324. When the crimping end 321 contacts and presses the power shaft 400, the connection end 322 stops moving and the elastic member 323 stops contracting. When the connection end 322 follows the pusher 310 away from the clamping plate 170, the pressing force of the clamping plate 170 and the connection end 322 on the elastic member 323 gradually decreases, the elastic member 323 gradually elongates, the crimping end 321 gradually moves away from the power shaft 400, and the pressing action of the crimping end 321 on the power shaft 400 disappears.

[0045] In some embodiments, the connection end 322 can also be set to a convex shape. The connection end 322 in this embodiment protrudes outward based on the socket section 324 to form a spherical shape, so that both ends of the elastic member 323 can abut against the clamping plate 170 and the connection end 322, facilitating the elastic expansion and contraction of the elastic member 323.

[0046] Refer to Figure 7 And Figure 8, the pusher 310 has a first connection section 311 and a second connection section 312. The first connection section 311 has a number of protruding ends 3111, and the electrode 320 is fixedly installed on the protruding end 3111, realizing the fixed connection between the electrode 320 and the pusher 310. According to actual usage requirements, multiple protruding ends 3111 can be provided on the first connection section 311, and an electrode 320 is connected to each protruding end 3111. When the pusher 310 moves, it can simultaneously push multiple electrodes 320 to move. A clamping groove 3121 is provided on the second connection section 312, and the end of the linkage rod 200 is snapped into the clamping groove 3121. The cross-section of the clamping groove 3121 is arc-shaped, facilitating the rotation of the linkage rod 200 in the clamping groove 3121. A pushing channel 160 is provided on the circuit board 100. A thimble 313 is installed on the pusher 310. The thimble 313 extends into the pushing channel 160 and moves along the pushing channel 160 under the drive of the pusher 310. When the thimble 313 moves to both ends of the pushing channel 160, the inner wall of the pushing channel 160 limits the thimble 313 to prevent the pusher 310 from applying excessive pressure on the power shaft 400, causing damage to the power shaft 400 and affecting normal use. A number of positioning holes 314 are provided at the bottom of the pusher 310. The thimble 313 is inserted into the positioning holes 314 to realize the fixed connection between the pusher 310 and the thimble 313. When the thimble 313 is fixed in different positioning holes 314, the stroke of the thimble 313 in the pushing channel 160 and the variation range of the distance between the circuit boards 100 can be changed, realizing adjustable stroke variation to meet different usage requirements and can be applied to different usage scenarios. It should be noted that the thimbles 313 of the pushers 310 on different circuit boards 100 can be installed in the positioning holes 314 at the same position or at different positions, and different combined structures can be changed according to usage requirements. It should be noted that the circuit board 100 is provided with a through hole 150 for the power shaft 400 to pass through. There is a certain gap between the through hole 150 and the power shaft 400. When the power shaft 400 is pressed by the electrode 320 and contacts the circuit board 100, the electrical connection between the power shaft 400 and the first lead 130 is realized; in this embodiment, the through hole 150 is provided at the second lead 140, facilitating the power shaft 400 to form a conduction loop with the second lead 140.

[0047] Refer to Figure 9, one end of the linkage rod 200 connected to the pushing member 310 in this embodiment is provided with a rotating section 210. Both ends of the rotating section 210 are provided with protrusions 220. The rotating section 210 is snapped into the clamping groove 3121 and can rotate within the clamping groove 3121. The protrusions 220 can limit the rotating section 210, preventing the rotating section 210 from shaking within the clamping groove 3121 during the rotation of the linkage rod 200 and improving the smoothness of the rotation of the linkage rod 200. Moreover, by providing protrusions on the linkage rod 200, it is convenient to form an electrical conduction path between the linkage rod 200 and the second lead 140. In this embodiment, the protrusion 220 is set as a spherical shape.

[0048] In this embodiment, the movement process of the double-linkage switch device is as follows: When the circuit board 100 is compressed, adjacent circuit boards 100 approach each other. The linkage rod 200 rotates based on the connection terminal 110 and the clamping groove 3121 under the drive of the circuit board 100. The pushing member 310 is pulled by the linkage rod 200 and moves in a direction away from the power shaft 400. The electrode 320 moves along with the movement of the pushing member 310 and gradually moves away from the power shaft 400. The pressing action of the electrode 320 on the power shaft 400 disappears, and the connection between the power shaft 400 and the first lead 130 is disconnected. The conduction path between the first leads 130 of adjacent circuit boards 100 is disconnected. While the linkage rod 200 rotates, it also moves in a direction away from the power shaft 400. The end of the linkage rod 200 disengages from the second lead 140, and the conduction path between the linkage rod 200 and the second lead 140 is disconnected. The conduction path between the second leads 140 of adjacent circuit boards 100 is disconnected. During the process of the pushing member 310 moving away from the power shaft 400, the ejector pin 313 moves within the pushing channel 160 (towards Figure 1 the right side in the figure). When the ejector pin 313 moves to the end of the pushing channel 160, the pushing channel 160 limits the ejector pin 313, and the pushing member 310 stops moving. The elastic member 323 rebounds during this process and gradually elongates until it returns to its free state. When the circuit board 100 expands, adjacent circuit boards 100 gradually move away from each other. The linkage rod 200 rotates based on the connection terminal 110 and the clamping groove 3121 under the drive of the circuit board 100. The pushing member 310 is pushed by the linkage rod 200 and moves in a direction close to the power shaft 400. The electrode 320 moves along with the movement of the pushing member 310 and gradually approaches the power shaft 400 until the electrode 320 presses on the power shaft 400, and the power shaft 400 contacts the first lead 130, realizing the electrical conduction between the first leads 130 of different circuit boards 100. While the linkage rod 200 rotates, it gradually approaches the second lead 140. When the linkage rod 200 contacts the second lead 140, the electrical conduction between the second leads 140 of different circuit boards 100 is realized. During the process of the pushing member 310 gradually approaching the power shaft 400, the ejector pin 313 moves within the pushing channel 160 (towards Figure 1On the left side of the middle), when the thimble 313 moves to the end of the push channel 160, the push channel 160 limits the thimble 313, and the pusher 310 stops moving. During this process, the elastic member 323 is gradually contracted under the pressure of the clamping plate 170 and the connection end 322, and stops contracting after the pusher 310 stops moving.

[0049] Second Embodiment

[0050] In the double - linked linkage switch device in the first embodiment, three power shafts 400, three first leads 130, and three electrodes 320 are provided to achieve "multiple throws". By providing multiple electrodes 320, power supply from multiple identical or different power sources is increased, having high application flexibility.

[0051] Referring to Figure 10 In this embodiment, different from the second embodiment, two electrodes 320 are provided in this embodiment. The electrodes 320 are arranged on both sides of the pusher 310. When the electrodes 320 are connected to the power shaft 400, "double throws" are achieved.

[0052] Third Embodiment

[0053] Referring to Figure 11 In this embodiment, different from the first embodiment, one electrode 320 is provided in this embodiment. The electrode 320 is arranged at the center of the pusher 310. When the electrode 320 is connected to the power shaft 400, "single throw" is achieved.

[0054] It should be noted that more than three electrodes 320 can also be provided, and reasonable selection can be made according to different usage requirements.

[0055] The double - linked linkage switch in the present invention can realize the on - off of the circuit during the folding process of the circuit board 100, and can be applied to mechatronic devices, such as in the fields of display windows, curtain walls, stage backgrounds, media terminals, in - vehicle screens, etc. The present invention also provides an electrical device, which includes the above - mentioned double - linked linkage switch device, and this electrical device is applicable to any mechatronic device in the above - mentioned fields.

[0056] The above has described the embodiments of the present invention in detail with reference to the drawings, but the present invention is not limited to the above - mentioned embodiments. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A double-linked linkage switch device, characterized in that, Comprising: A circuit board, with at least two circuit boards stacked, and a first lead and a second lead are provided on the circuit board; A connection terminal, which is fixed on the circuit board and electrically connected to the circuit board; A moving component, the moving component includes a pushing member and an electrode connected to the pushing member, the electrode has a crimping end, a connection end and a sleeved section, the connection end is fixedly connected to the pushing member, a clamping board is fixed on the circuit board, the connection end and the crimping end are arranged on both sides of the clamping board, an elastic member is arranged between the clamping board and the connection end, the connection end and the crimping end are connected to both ends of the sleeved section, the elastic member is sleeved on the sleeved section and can elastically expand and contract along the sleeved section; A linkage rod, a moving channel is provided on the circuit board, one end of the linkage rod is rotatably connected to the pushing member, the other end of the linkage rod passes through the moving channel and is rotatably connected to the connection terminal on the adjacent circuit board, the pushing member has a first connection section and a second connection section, the first connection section has a number of protruding ends, and each protruding end is connected with the electrode, a clamping groove is provided on the second connection section, the end of the linkage rod is clamped into the clamping groove, a pushing channel is provided on the circuit board, a thimble is installed on the pushing member, the thimble extends into the pushing channel and can move in the pushing channel following the movement of the pushing member, a number of positioning holes are provided on the pushing member, and the thimble is inserted into the positioning holes; A power shaft, which passes through the circuit board; The linkage rod can rotate based on the connection terminal, so that the linkage rod contacts or moves away from the second lead, and the pushing member can move following the rotation of the linkage rod and push the electrode to crimp or move away from the power shaft, so that the power shaft is connected or moved away from the first lead.

2. The double-connected linkage switch device according to claim 1, wherein When the adjacent circuit boards approach or move away from each other, the linkage rod is driven to rotate.

3. The double-linked linkage switch device according to claim 1, characterized in that The crimping end is in a concave shape, and when the electrode crimps the power shaft, the crimping end wraps the power shaft.

4. The double - linked linkage switch device according to any one of claims 1 to 3, characterized in that, Each circuit board is connected with two linkage rods, the linkage rods are symmetric about the center of the circuit board, and the linkage rod includes a rotating section, and protrusions are provided at both ends of the rotating section.

5. An electrical device, characterized in that, Including the double-linkage switch according to any one of claims 1 to 4.

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