A relay having a novel reed assembly

Abstract

A relay with a new type of reed assembly, which comprises a base, a coil assembly, a magnetic steel assembly, and a switch assembly. The switch assembly comprises a moving contact unit and a stationary contact unit. The moving contact unit comprises a moving contact mounting plate, a reed assembly, two moving contacts arranged on the reed assembly, and a set of elastic abutting members arranged between the moving contact mounting plate and the reed assembly. The reed assembly comprises a plurality of reeds arranged in layers. The plurality of reeds are stamped and assembled in layers, which can reduce manufacturing cost and error, and is convenient for production and assembly. The elastic abutting members comprise an abutting body and two bending portions arranged on the abutting body. The elastic abutting members can be made of different elastic materials, and the elastic force between the moving contact and the moving contact mounting plate can be adjusted by adjusting the bending curvature of the bending portions.

Description

Technical Field

[0001] This utility model belongs to the field of low-voltage electrical technology, and in particular to a relay with a novel reed assembly. Background Technology

[0002] A relay is an electronic device that uses electromagnetic principles to control the switching on and off of a circuit. It controls the closing and opening of contacts through an electromagnetic coil. Relays have wide applications in industrial control, and different types of relays can be used to achieve logic control and sequential control.

[0003] In the invention patent with publication number CN109904037B, the moving contact spring and the moving contact terminal plate are only fixedly connected by rivets. However, since the moving contact spring is elastic, it is easy to touch the moving contact terminal plate during the rebound process, thereby damaging the moving contact spring. Summary of the Invention

[0004] In view of this, the present invention provides a relay with a novel reed assembly to solve the above problems.

[0005] A relay with a novel reed assembly includes a base, a coil assembly located in the base, a magnet assembly connected to the coil assembly, and at least one set of switching assemblies connected to the magnet assembly. Each set of switching assemblies includes a set of moving contact units and a set of stationary contact units spaced apart from the moving contact units. The moving contact unit includes a moving contact mounting plate, a reed assembly connected to the moving contact mounting plate, two moving contacts disposed on the reed assembly, and a set of elastic abutments disposed between the moving contact mounting plate and the reed assembly. The reed assembly includes a plurality of stacked reeds, which are individually stamped and stacked. The elastic abutments include a abutment body, two fixing portions located on the abutment body, and two bent portions located on the abutment body and respectively connected to the fixing portions.

[0006] Furthermore, the base is used to support the coil assembly, the magnet assembly, and the switch assembly. The base includes a housing, an end cap corresponding to the housing, and a fixed bracket located inside the housing.

[0007] Furthermore, the magnet assembly includes a permanent magnet armature rotatably disposed on one side of the coil assembly, and a push plate connected to the permanent magnet armature, wherein the permanent magnet armature includes a connector for fixing the permanent magnet armature to the push plate.

[0008] Furthermore, the push plate includes a plug slot corresponding to the plug connector, and at least one abutment slot for driving the switch assembly to switch, wherein the plug slot and the plug connector are adapted in size and shape.

[0009] Furthermore, each of the reeds includes a prank reed body, a first partition hole on the reed body, a plurality of fixing holes on the reed body near one end of the moving contact mounting plate, and two mounting holes on the reed body at both ends of the first partition hole.

[0010] Furthermore, the elastic abutment also includes a fitting portion located on the abutment body and connected to the two bent portions.

[0011] Furthermore, each of the fixing parts also includes a mounting through hole, which is provided corresponding to the mounting hole.

[0012] Furthermore, the elastic abutment is made of an elastic material.

[0013] Furthermore, one end of the bent portion is connected to the fixed portion, and the other end is connected to the fitting portion. It is located between the two and abuts against the moving contact and the moving contact mounting plate.

[0014] Furthermore, the stationary contact unit includes a stationary contact mounting plate and at least one stationary contact disposed on the stationary contact mounting plate, wherein the stationary contact is disposed correspondingly to the moving contact.

[0015] Compared with existing technologies, the relay with a novel reed assembly provided by this utility model is assembled and riveted by stamping multiple reeds piece by piece and stacking them with rivets. Compared with the traditional one-piece stamping, this not only reduces manufacturing errors and improves manufacturing convenience, but also simplifies assembly by simply passing rivets through the fixing holes to connect and fix multiple reeds, making assembly and disassembly convenient. Furthermore, by using elastic abutment members between the moving contact and the moving contact mounting plate made of different elastic materials and by setting bending portions with different bending angles, the elastic force between the moving contact mounting plate and the moving contact can be adjusted according to actual needs, thereby ensuring that the elastic force is appropriately tight to fully adapt to the operating requirements of the relay. Attached Figure Description

[0016] Figure 1 An exploded view of a relay with a novel reed assembly provided by this utility model.

[0017] Figure 2 for Figure 1 A partial enlarged view at point A of a relay with a novel reed assembly.

[0018] Figure 3 for Figure 1 An exploded view of a relay with a novel reed assembly.

[0019] Figure 4 for Figure 2 A schematic diagram of the moving contact unit of a relay with a novel reed assembly.

[0020] Figure 5 for Figure 4 A schematic diagram of the moving contact unit of a relay with a novel reed assembly in another direction.

[0021] Figure 6 for Figure 1 A schematic diagram of the structure of the reed in a relay with a novel reed assembly.

[0022] Figure 7 for Figure 1 A schematic diagram of the elastic abutment component of a relay with a novel reed assembly. Detailed Implementation

[0023] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0024] like Figures 1 to 7 The diagram shown is a structural schematic of a relay with a novel reed assembly provided by this utility model. The relay with the novel reed assembly includes a base 10, a coil assembly 20 located in the base 10, a magnet assembly 30 connected to the coil assembly 20, and at least one set of switch assemblies 40 connected to the magnet assembly 30. The relay with the novel reed assembly also includes other functional modules, assembly components, electrical connection components, etc., which should be known to those skilled in the art and will not be described in detail here. The push-pull plate... like Figure 1 As shown, the base 10 is used to support the coil assembly 20, the magnet assembly 30, and the switch assembly 40. Therefore, the structure and shape of the base 10 are preferably adapted to accommodate and support the aforementioned functional modules. In this embodiment, the base 10 can be a rectangular shell. The base 10 includes a shell 11, an end cap 12 corresponding to the shell 11, and a fixing bracket 13 located within the base 10.

[0025] The housing 11 is used to carry the coil assembly 20, the magnet assembly 30, and the switch assembly 40.

[0026] The fixing bracket 13 is used to fix the coil assembly 20, the magnet assembly 30, and the switch assembly 40. The shape and structure of the fixing bracket 13 are designed to fix or clamp the coil assembly 20, the magnet assembly 30, and the switch assembly 40, therefore its specific structure and shape will not be described in detail here.

[0027] like Figure 1 As shown, the coil assembly 20 is a basic electronic component, typically formed by winding wires around a ferrite or air core. It is capable of storing energy or generating a magnetic field. When energized, it generates a magnetic force, thereby attracting the permanent magnet armature 31 to move. By controlling the direction of the current, the direction of the induced magnetic field is controlled to drive the permanent magnet armature 31 to move in the opposite direction.

[0028] like Figure 1 As shown, the magnet assembly 30 includes a permanent magnet armature 31 rotatably disposed on one side of the coil assembly 20, and a push plate 32 connected to the permanent magnet armature 31.

[0029] The permanent magnet armature 31 can be a permanent magnet that oscillates back and forth under the magnetic force generated by the coil assembly 20 to drive the push plate 32 to move. The permanent magnet armature 31 includes a connector 311 to facilitate fixing the permanent magnet armature 31 to the push plate 32.

[0030] like Figure 1 As shown, the push plate 32 includes a plug slot 321 corresponding to the plug 311, and at least one abutment slot 322 for driving the switch assembly 40 to open or close. The number of abutment slots 322 is determined by the number of switch assemblies 40. In this embodiment, the number of abutment slots 322 is two.

[0031] The insertion slot 321 is adapted to the size and shape of the insertion connector 311. Specifically, when the insertion connector 311 is inserted into the insertion slot 321, the permanent magnet armature 31 and the push plate 32 are relatively fixed.

[0032] like Figure 3 As shown, each of the switch assemblies 40 includes a set of moving contact units 41 and a set of stationary contact units 42 corresponding to the moving contact units 41.

[0033] like Figure 5As shown, the moving contact unit 41 is connected to the magnet assembly 30 and moves closer to or further away from the stationary contact unit 42 under the action of the magnet assembly 30, thereby realizing the opening and closing of the switch assembly 40. The moving contact unit 41 includes a moving contact mounting plate 411, a spring assembly 412 connected to the moving contact mounting plate 411, two moving contacts 413 disposed on the spring assembly 412, and a set of elastic abutment members 414 disposed between the moving contact mounting plate 411 and the spring assembly 412.

[0034] like Figure 4 As shown, the moving contact mounting plate 411 is used to support and mount the reed assembly 412 and to be electrically connected to external equipment. It can be a partially bent rectangular plate.

[0035] like Figure 5 As shown, the reed assembly 412 is used to support and drive the moving contact 413. The reed assembly 412 includes a plurality of stacked reeds 4121. In this embodiment, there are four reeds 4121, and the length of the four reeds 4121 gradually increases along the arrangement direction from the moving contact mounting plate 411 to the moving contact 413.

[0036] like Figure 6 As shown, each of the reeds 4121 includes a reed body 4122, a first partition hole 4123 on the reed body 4122, a plurality of fixing holes 4124 on the reed body 4122 near one end of the moving contact mounting plate 411, and two mounting holes 4125 on the reed body 4122 at both ends of the first partition hole 4123.

[0037] The first dividing hole 4123 is used to divide the end of the reed body 4122 away from the moving contact mounting plate 411 into two regions, and it is located in the middle of the reed body 4122. The extending direction of the first dividing hole 4123 is perpendicular to the arrangement direction of the moving contact mounting plate 411 and the moving contact 413. The first dividing hole 4123 does not completely divide the reed body 4122; the end of the reed body 4122 near the moving contact mounting plate 411 remains connected. The reed body 4122 can be a U-shaped piece.

[0038] The fixing hole 4124 is used to fix one end of the reed body 4122 onto the moving contact mounting plate 411. The number of fixing holes 4124 can be set according to actual needs. In this embodiment, the number of fixing holes 4124 is four.

[0039] The mounting hole 4125 is used to fix the moving contact 413. The size of the hole radius of the mounting hole 4125 is adapted to the size of the ring radius of the moving contact 413, so as to facilitate the fixed installation of the moving contact 413 on the mounting hole 4125.

[0040] In this invention, multiple spring sheets 4121 are stamped one by one and stacked for assembly. Compared to the traditional method of cutting multiple spring sheets 4121 from a single metal plate, this reduces manufacturing costs and errors, making production and assembly more convenient. Specifically, during assembly, multiple spring sheets 4121 can be connected and fixed simply by passing rivets through the fixing holes 4124. The elasticity between the spring sheets 4121 can also be controlled by adjusting the tightness of the rivets during riveting.

[0041] Each of the moving contacts 413 has the same structure and function. The moving contact 413 is used to cooperate with the stationary contact 422 to control the switching on and off of the relay. It is fixedly connected to the reed assembly 412 and moves with the moving contact mounting plate 411.

[0042] like Figure 7 As shown, the elastic abutment member 414 is used to adjust the elastic force between the moving contact 413 and the moving contact mounting plate 411. The elastic abutment member 414 is located between the moving contact 413 and the moving contact mounting plate 411, and includes an abutment body 4141, a second partition hole 4142 opened on the abutment body 4141, two fixing portions 4143 located on the abutment body 4141 and at both ends of the second partition hole 4142, two bending portions 4144 located on the abutment body 4141 and respectively connected to the fixing portions 4143, and a fitting portion 4145 located on the abutment body 4141 and connected to the two bending portions 4144.

[0043] The abutment body 4141 is made of elastic material, thus having good elasticity.

[0044] The second dividing hole 4142 is used to divide the end of the abutment body 4141 connected to the spring assembly 412 into two regions, and it is opened in the middle of the abutment body 4141. The extending direction of the second dividing hole 4142 is perpendicular to the arrangement direction of the moving contact mounting plate 411 and the moving contact 413.

[0045] The two fixing parts 4143 have the same structure and function. Each fixing part 4143 also includes a mounting through hole 4146, which corresponds to the mounting hole 4125, and their axes are on the same straight line. The mounting through hole 4146 is for the moving contact 413 to pass through. The fixing part 4143 is used for the moving contact 413 to pass through to fix the moving contact 413 to the spring assembly 412 and the elastic abutment 414. Specifically, there may be a slight difference in elasticity between the two moving contacts 413 located at both ends of the spring body 4122 due to the height difference. However, since the two fixing parts 4143 are respectively connected and fixed to the two moving contacts 413, the height difference between the two moving contacts 413 can be compensated by each fixing part 4143, so that the two moving contacts 413 still have the same movement state during use, and can be connected or disconnected at the same time.

[0046] The bending portion 4144 is used to control the elastic strength of the elastic abutment 414. Specifically, one end of the bending portion 4144 is connected to the fixing portion 4143, and the other end is connected to the fitting portion 4145. It is located between the two and abuts against the moving contact 413 and the moving contact mounting plate 411. The cross-section of the bending portion 4144 in the arrangement direction of the two fixing portions 4143 is a curved curve. When greater elasticity is required between the moving contact 413 and the moving contact mounting plate 411, the curvature of the curved curve can be designed to be larger to increase the elastic force; when less elasticity is required between the moving contact 413 and the moving contact mounting plate 411, the curvature of the curved curve can be designed to be smaller to reduce the elastic force.

[0047] The fitting portion 4145 fits against the moving contact mounting plate 411 to abut against the moving contact mounting plate 411.

[0048] The elastic abutment 414 is used to abut against the moving contact 413 and the moving contact mounting plate 411, preventing direct contact between the two during movement and thus avoiding unnecessary damage. The elastic abutment 414 can also adjust the abutting force between the moving contact 413 and the moving contact mounting plate 411 by replacing the abutment body 4141 with one made of a different material. Specifically, when a greater elastic force is required between the moving contact 413 and the moving contact mounting plate 411, the abutment body 4141 can be made of a material with better elasticity to enhance the elastic force; when a smaller elastic force is required, the abutment body 4141 can be made of a material with poorer elasticity to reduce the elastic force.

[0049] The stationary contact unit 42 includes a stationary contact mounting plate 421 and at least one stationary contact 422 disposed on the stationary contact mounting plate 421.

[0050] The stationary contact 422 and the moving contact 413 are respectively arranged. When the moving contact 413 approaches the stationary contact 422 under the pushing action of the magnet assembly 30 so that the two are connected, the switch assembly 40 is connected. When the two are separated, the switch assembly 40 is disconnected.

[0051] Compared with existing technologies, the relay with a novel reed assembly provided by this utility model is assembled and riveted by stamping multiple reeds 4121 piece by piece and stacking them with rivets. Compared with the traditional one-piece stamping, this not only reduces manufacturing errors and improves manufacturing convenience, but also simplifies assembly by simply passing rivets through the fixing holes 4124 to connect and fix multiple reeds 4121, making assembly and disassembly convenient. Furthermore, by using elastic abutment members 414 between the moving contact 413 and the moving contact mounting plate 411 made of different elastic materials and by setting bending portions with different bending angles, the elastic force between the moving contact mounting plate 411 and the moving contact 413 can be adjusted according to actual needs, so that the elastic force is appropriately tight and can fully adapt to the working requirements of the relay.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A relay with a novel reed assembly, characterized in that: The relay with the novel reed assembly includes a base, a coil assembly located in the base, a magnet assembly connected to the coil assembly, and at least one set of switch assemblies connected to the magnet assembly. Each set of switch assemblies includes a set of moving contact units and a set of stationary contact units spaced apart from the moving contact units. The moving contact unit includes a moving contact mounting plate, a reed assembly connected to the moving contact mounting plate, two moving contacts disposed on the reed assembly, and a set of elastic abutments disposed between the moving contact mounting plate and the reed assembly. The reed assembly includes a plurality of stacked reeds, which are stamped and stacked one by one. The elastic abutments include a abutment body, two fixing portions located on the abutment body, and two bending portions located on the abutment body and respectively connected to the fixing portions.

2. The relay with a novel reed assembly as described in claim 1, characterized in that: The base is used to support the coil assembly, the magnet assembly, and the switch assembly. The base includes a housing, an end cap corresponding to the housing, and a fixed bracket located inside the housing.

3. The relay with a novel reed assembly as described in claim 1, characterized in that: The magnet assembly includes a permanent magnet armature rotatably disposed on one side of the coil assembly, and a push plate connected to the permanent magnet armature. The permanent magnet armature includes a connector for fixing the permanent magnet armature to the push plate.

4. The relay with a novel reed assembly as described in claim 3, characterized in that: The push plate includes a plug slot corresponding to the plug connector, and at least one abutment slot for driving the switch assembly to switch, wherein the plug slot and the plug connector are adapted to each other in size and shape.

5. The relay with a novel reed assembly as described in claim 1, characterized in that: Each of the reeds includes a prank reed body, a first partition hole on the reed body, a plurality of fixing holes on the reed body near one end of the moving contact mounting plate, and two mounting holes on the reed body at both ends of the first partition hole.

6. The relay with a novel reed assembly as described in claim 1, characterized in that: The elastic abutment also includes a fitting portion located on the abutment body and connected to the two bending portions.

7. The relay with a novel reed assembly as described in claim 5, characterized in that: Each of the fixing parts also includes a mounting through hole, which is provided corresponding to the mounting hole.

8. The relay with a novel reed assembly as described in claim 1, characterized in that: The elastic abutment is made of elastic material.

9. The relay with a novel reed assembly as described in claim 6, characterized in that: One end of the bent portion is connected to the fixed portion, and the other end is connected to the fitting portion. It is located between the two and abuts against the moving contact and the moving contact mounting plate.

10. The relay with a novel reed assembly as claimed in claim 1, characterized in that: The stationary contact unit includes a stationary contact mounting plate and at least one stationary contact disposed on the stationary contact mounting plate, wherein the stationary contact is disposed correspondingly to the moving contact.

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