Magnetic latching relay switch

Abstract

The invention discloses a magnetic latching relay switch which comprises a shell, a base, a magnetic circuit assembly, a moving contact, a static contact and a plurality of conductive contact pins fixedly installed on the base, plugging ends are formed on the conductive contact pins, and straightening assemblies are movably arranged on the conductive contact pins. The straightening assembly moves at an initial position which does not interfere with the plugging operation of the conductive contact pin and a straightening position which is used for straightening the conductive contact pin. The invention has the following advantages and effects: after the conductive contact pin deforms, the subsequent plugging operation can be ensured to be smoothly carried out, so that the assembly efficiency is ensured, and the influence caused by assembly accidents is reduced to the greatest extent.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical components, in particular to a magnetic latching relay switch. Background Art

[0002] A relay is an electrical control device, also considered a special type of switch. It causes a predetermined step change in the controlled quantity in an electrical output circuit when the change in the input quantity reaches a specified level. It connects and disconnects the circuit by controlling the closing and opening of contacts. It creates an interactive relationship between the control system and the controlled system, providing automatic regulation, safety protection, and circuit switching within the circuit.

[0003] The relay uses multiple conductive contacts provided on it to achieve plug-in and electrical conduction with other electrical components. However, since there are a large number of conductive contacts and they are made of thin metal structures, during the plug-in process, once a conductive contact is misaligned with the socket, it is very easy to cause the contact to deform. In addition, due to the action of the force arm, the position where the conductive contact is deformed is often far away from its end. If it is processed by manual straightening, it is difficult to achieve 100% restoration, so that the conductive contact will still have a small amount of deformation, which will also affect the smoothness of the plug-in to a certain extent. In view of this, the present invention came into being. Summary of the Invention

[0004] The object of the present invention is to provide a magnetic latching relay switch, which can ensure smooth subsequent plugging operations even after the conductive contact pins are deformed, thereby ensuring assembly efficiency and minimizing the impact of assembly accidents.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a magnetic latching relay switch, comprising a housing, a base, a magnetic circuit assembly, a moving contact, a static contact, and a plurality of conductive contact pins fixedly mounted on the base, wherein the conductive contact pins are formed with plug-in ends, and a plurality of the conductive contact pins are movably provided with straightening assemblies, wherein the straightening assemblies move to an initial position that does not interfere with the plug-in operation of the conductive contact pins and a straightening position for straightening the conductive contact pins.

[0006] By adopting the above technical solution, the straightening assembly is in its initial position, ensuring that it does not interfere with the normal insertion of the conductive contact pins. If the conductive contact pins bend and deform during insertion, the straightening assembly can be switched from the initial position to the straightening position to straighten the deformed conductive contact pins. Switching the straightening assembly back to the initial position restores the normal insertion function of the conductive contact pins without interfering with subsequent normal insertion operations. This ensures the smooth progress of subsequent insertion operations, maintains assembly efficiency, and minimizes the impact of assembly accidents.

[0007] It is further configured that: the straightening component reciprocates along the length direction of the conductive contact pin and synchronously straightens each conductive contact pin. When the conductive contact pin is plugged into the object to be plugged in, the object to be plugged in can drive the straightening component to switch from the straightening position to the initial position.

[0008] By adopting the above technical solution, when the conductive contact pin is bent and deformed, the straightening assembly is controlled to move along the length of the conductive contact pin to the bent and deformed position to complete the straightening work at the bent and deformed position. The conductive contact pin is then directly plugged into the object to be plugged in. During the plugging process, the object to be plugged in abuts against the straightening assembly, switching the straightening assembly from the straightening position back to the initial position. This ensures that the straightening assembly is reset and the plugging operation is completed simultaneously, making the operation more convenient and labor-saving, and improving the feasibility of the arrangement.

[0009] It is further configured as follows: the straightening component includes a straightening seat located on the side of the base opposite to the magnetic circuit component, and a straightening hole arranged on the straightening seat and corresponding one-to-one to a plurality of conductive contact pins and for the conductive contact pins to pass through, and the cross-sectional size of the straightening hole is adapted to the cross-sectional size of the conductive contact pins.

[0010] By adopting the above technical solution, the straightening seat drives the plurality of straightening holes to move synchronously along the length direction of the conductive contact pin. When the straightening holes are moved to the position corresponding to the bent deformation of the conductive contact pin, the conductive contact pin is straightened and the plugging end of the conductive contact pin is pressed back from the deformed position to the plugging position, restoring the conductive contact pin to a straight shape, thereby ensuring the smooth progress of subsequent plugging operations. This is one straightening method. By setting the shape of the straightening holes to be compatible with the shape of the conductive pin, the straightening holes can straighten the conductive pin after sliding past the deformed position, thereby restoring the conductive pin to a straight shape. This is another straightening method.

[0011] It is further configured as follows: a detachable snap-fit structure is provided between the shell and the base, the snap-fit structure has a snap-fit state of fixing the shell and the base and a separated state of separating the shell and the base, a limiting component is connected between the straightening seat and the snap-fit structure, and when the straightening seat is in the initial position, the snap-fit structure is limited to the snap-fit state by the limiting component.

[0012] By adopting the above technical solution, when the alignment seat is in the initial position, the limit assembly is provided to restrict the snap-fit structure to the engaged state. In this state, workers cannot switch the snap-fit structure from the engaged state to the separated state, that is, they cannot disassemble the snap-fit structure. This adds a safety feature to prevent disassembly by non-professionals, thereby improving the safety performance of the product. When the alignment seat is not in the initial position, the limit assembly does not restrict the snap-fit structure, and the snap-fit structure can be switched between the engaged state and the separated state to achieve disassembly and maintenance operations on the relay.

[0013] It is further configured that: the clamping structure includes an elastic clamping claw arranged on the base and a clamping groove arranged on the shell and clamped with the elastic clamping claw.

[0014] By adopting the above technical solution, the elastic claw is engaged with the slot, thereby realizing detachable fixation between the base and the shell.

[0015] It is further configured as follows: the snap-fit structure is located on the side of the base opposite to the straightening seat, the limit assembly includes a limit block that moves with the straightening seat, a connecting hole provided on the base for the limit block to pass through, and a limit activity area formed on the side of the elastic claw opposite to the slot; when the straightening seat is in the initial position, the limit block is located in the limit activity area and abuts against a side wall of the elastic claw opposite to the slot.

[0016] By adopting the above technical solution, the limit block moves through the connecting hole to the limit activity area and abuts against the side of the elastic claw opposite to the slot, so that the elastic claw cannot be elastically deformed on the side opposite to the slot, thereby limiting the elastic claw to be connected to the slot and locking the card structure in the card state, thereby giving the structure a safety and anti-disassembly function.

[0017] It is further configured as follows: a detachable positioning component is provided between the straightening seat and the base, and the positioning component positions the straightening seat at an initial position.

[0018] By adopting the above technical solution, the position of the straightening seat is positioned by setting a detachable positioning component to avoid manual accidental movement of the straightening seat and affecting its safety function for the card-fitting structure, thereby ensuring the practicality of the setting structure.

[0019] It is further configured as follows: the positioning component includes an upper positioning magnetic block fixedly arranged on the base and a lower positioning magnetic block fixedly arranged on the straightening seat and magnetically attracted to the upper positioning magnetic block.

[0020] By adopting the above technical solution, the upper positioning magnetic block and the lower positioning magnetic block are adsorbed to position the straightening seat in the initial position. The straightening seat can be moved by peeling it off with force to switch the straightening seat between the initial position and the straightening position. This structure is easy to operate and low in cost.

[0021] It is further configured that: a switch zone is formed between the static contact and the movable contact, and the upper positioning magnetic block and the lower positioning magnetic block are arranged at positions close to the switch zone.

[0022] By adopting the above technical solution, the upper and lower positioning magnetic blocks are not only positioned to align the alignment seat, but also positioned near the switching area. This allows the magnetic blocks to attract the arc sparks generated when the moving contact contacts the static contact, thereby extinguishing the arc and preventing the arc sparks from burning the contact surfaces, thereby extending the service life of the relay. This gives the upper and lower positioning magnetic blocks dual functions.

[0023] It is further configured that: the outer wall of the shell is connected to a button which reciprocates toward the slot and is used to drive the elastic claw to disengage from the slot.

[0024] By adopting the above technical solution, the elastic claw and the card slot are conveniently separated by a set button, thereby avoiding damage to the shell or the elastic claw caused by the original prying operation, thereby extending the practical life of the product.

[0025] In summary, the present invention has the following beneficial effects: the present invention can ensure smooth subsequent plugging operations even after the conductive contact pins are deformed, thereby ensuring assembly efficiency and minimizing the impact of assembly accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 A partial exploded view of an embodiment; Figure 3 is another partial exploded view of the embodiment; Figure 4 is a cross-sectional view of an embodiment; Figure 5 for Figure 4 Enlarged view of part A in the middle; Figure 6 is a cross-sectional view of the embodiment in another direction; Figure 7 for Figure 6 Enlarged view of part B in the middle.

[0027] In the figure: 1. Shell; 2. Base; 3. Magnetic circuit assembly; 4. Moving contact; 5. Static contact; 6. Conductive contact pin; 7. Connecting terminal; 81. Alignment seat; 82. Alignment hole; 9. Snap-fit structure; 91. Elastic claw; 92. Slot; 10. Limit assembly; 101. Limit block; 102. Connecting hole; 103. Limiting active area; 111. Upper positioning magnetic block; 112. Lower positioning magnetic block; 12. On / off area; 13. Button. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] refer to Figures 1 to 7A magnetic latching relay switch includes a housing 1, a base 2, a magnetic circuit assembly 3, a movable contact 4, a static contact 5, and a plurality of conductive contact pins 6 fixedly mounted on the base 2. The magnetic circuit assembly 3 is mounted on the base 2, the static contact 5 is mounted on the conductive contact pin 6, and the movable contact 4 is mounted on the magnetic circuit assembly 3. The magnetic circuit assembly 3 is a prior art, and its specific structure and principle will not be elaborated on here. A plug-in terminal 7 is formed at the lower end of the conductive contact pin 6, and a straightening assembly is movably provided on the plurality of conductive contact pins 6. The straightening assembly has an initial position that does not interfere with the plug-in operation of the conductive contact pin 6 and a straightening position for straightening the conductive contact pin 6.

[0030] The straightening assembly reciprocates along the length of the conductive contact pins 6, simultaneously aligning each conductive contact pin 6. When the conductive contact pins 6 are plugged into an object, the object drives the straightening assembly from the straightening position to the initial position. The straightening assembly includes a straightening seat 81 located on the side of the base 2 opposite the magnetic circuit assembly 3, and straightening holes 82 defined in the straightening seat 81, corresponding one-to-one with each of the conductive contact pins 6 and allowing the conductive contact pins 6 to pass through. The cross-sectional size of the straightening holes 82 matches the cross-sectional size of the conductive contact pins 6.

[0031] A detachable snap-fit structure 9 is provided between the shell 1 and the base 2. The snap-fit structure 9 is symmetrically arranged in two groups. The snap-fit structure 9 has a snap-fit state in which the shell 1 and the base 2 are fixed, and a separate state in which the shell 1 and the base 2 are separated. A limiting assembly 10 is connected between the straightening seat 81 and the snap-fit structure 9. When the straightening seat 81 is in the initial position, the snap-fit structure 9 is limited to the snap-fit state by the limiting assembly 10. The snap-fit structure 9 includes an elastic claw 91 integrally provided on the base 2 and a slot 92 provided in the shell 1 and snap-fitted with the elastic claw 91. The slot 92 is provided through the shell 1 and the elastic claw 91 is made of plastic material.

[0032] The snap-fit structure 9 is located on the side of the base 2 facing away from the alignment seat 81. The position-limiting components 10 are symmetrically arranged in two groups, one corresponding to each of the two groups of snap-fitting structures 9. The position-limiting components 10 include a position-limiting block 101 integrally mounted on the side of the alignment seat 81 facing the base 2, a connecting hole 102 provided in the base 2 for the position-limiting block 101 to pass through, and a position-limiting active area 103 formed on the side of the elastic claw 91 facing away from the slot 92. When the alignment seat 81 is in its initial position, the position-limiting block 101 is located in the position-limiting active area 103 and abuts against the side wall of the elastic claw 91 facing away from the slot 92.

[0033] A detachable positioning assembly is provided between the alignment seat 81 and the base 2 to position the alignment seat 81 in its initial position. The positioning assembly includes an upper positioning magnet 111 fixed to the base 2 and a lower positioning magnet 112 fixed to the alignment seat 81 and magnetically fixed to the upper positioning magnet 111.

[0034] A switch region 12 is formed between the static contact 5 and the movable contact 4. Upper and lower positioning magnetic blocks 111 and 112 are positioned near the switch region 12. A button 13 is fixedly connected to the outer wall of the housing 1 via an elastic segment made of elastic plastic. The button 13 reciprocates toward the slot 92 and is used to drive the elastic claw 91 out of the slot 92.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A magnetic latching relay switch, comprising a housing (1), a base (2), a magnetic circuit assembly (3), a movable contact (4), a stationary contact (5), and a plurality of conductive contact pins (6) fixedly mounted on the base (2), wherein the conductive contact pins (6) are formed with plug-in terminals (7), and characterized in that: A straightening assembly is movably provided on a plurality of the conductive contact pins (6), and the straightening assembly has an initial position that does not interfere with the plugging operation of the conductive contact pins (6) and a straightening position for straightening the conductive contact pins (6).

2. The magnetic latching relay switch according to claim 1, characterized in that: The straightening component reciprocates along the length direction of the conductive contact pin (6) and synchronously realizes the straightening of each conductive contact pin (6); when the conductive contact pin (6) is plugged into an object to be plugged in, the object to be plugged in can drive the straightening component to switch from the straightening position to the initial position.

3. The magnetic latching relay switch according to claim 2, characterized in that: The straightening assembly comprises a straightening seat (81) located on a side of the base (2) opposite to the magnetic circuit assembly (3), and a straightening hole (82) provided on the straightening seat (81) and corresponding to a plurality of conductive contact pins (6) one by one and for the conductive contact pins (6) to pass through, wherein the cross-sectional size of the straightening hole (82) is adapted to the cross-sectional size of the conductive contact pins (6).

4. The magnetic latching relay switch according to claim 3, characterized in that: A detachable snap-fit structure (9) is provided between the shell (1) and the base (2), and the snap-fit structure (9) has a snap-fit state for fixing the shell (1) and the base (2) and a separate state for separating the shell (1) and the base (2). A limiting component (10) is connected between the straightening seat (81) and the snap-fit structure (9), and when the straightening seat (81) is in the initial position, the snap-fit structure (9) is limited by the limiting component (10) to be in the snap-fit state.

5. The magnetic latching relay switch according to claim 4, characterized in that: The snap-fit structure (9) comprises an elastic snap-fit claw (91) provided on the base (2) and a snap-fit groove (92) provided on the housing (1) and snap-fitted with the elastic snap-fit claw (91).

6. The magnetic latching relay switch according to claim 5, characterized in that: The snap-fit structure (9) is located on the side of the base (2) opposite to the straightening seat (81); the limiting assembly (10) comprises a limiting block (101) that moves with the straightening seat (81), a connecting hole (102) provided on the base (2) for the limiting block (101) to pass through, and a limiting movable area (103) formed on the side of the elastic clamping claw (91) opposite to the slot (92); when the straightening seat (81) is in the initial position, the limiting block (101) is located in the limiting movable area (103) and abuts against a side wall of the elastic clamping claw (91) opposite to the slot (92).

7. The magnetic latching relay switch according to claim 4, characterized in that: A detachable positioning assembly is provided between the straightening seat (81) and the base (2), and the positioning assembly positions the straightening seat (81) to be at an initial position.

8. The magnetic latching relay switch according to claim 7, characterized in that: The positioning assembly comprises an upper positioning magnetic block (111) fixedly arranged on the base (2) and a lower positioning magnetic block (112) fixedly arranged on the straightening seat (81) and magnetically attracted to the upper positioning magnetic block (111).

9. The magnetic latching relay switch according to claim 8, characterized in that: A switching zone (12) is formed between the static contact (5) and the moving contact (4), and the upper positioning magnetic block (111) and the lower positioning magnetic block (112) are arranged at positions close to the switching zone (12).

10. The magnetic latching relay switch according to claim 5, characterized in that: The outer wall of the housing (1) is connected to a button (13) which reciprocates toward the slot (92) and is used to drive the elastic claw (91) to disengage from the slot (92).

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