Moving spring armature component and electromagnetic relay
By using a superimposed design of first and second moving springs and a parallel contact structure, the load and power consumption problems of small-volume electromagnetic relays are solved, achieving enhanced flexibility and reduced contact resistance, thus meeting the requirements for miniaturized and high-load electromagnetic relays.
Patent Information
- Application Number
- CN202520219895.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing technologies struggle to achieve electromagnetic relays with high load capacity and low coil power consumption within a small volume. Furthermore, the existing moving spring stack structure results in excessive reaction force when the thickness is increased, failing to meet miniaturization requirements.
The design employs a superimposed first and second moving spring. The first moving spring is connected to the armature, while the second moving spring is not connected. Combined with the bending section and elongated hole structure, the flexibility of the spring is increased, and the contact resistance is reduced through the parallel structure of multiple stationary contacts and moving contacts.
It achieves high load capacity and low coil power consumption in a small volume, reduces contact reaction force and temperature rise, increases current carrying area, and meets the requirements of miniaturization design.
Smart Images
Figure CN223680016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to relay technical field, especially a kind of moving spring armature component and electromagnetic relay. BACKGROUND
[0002] With the development of product to miniaturization, the relay is required to be small in size and higher in load capacity. In order to realize large load in small size, low coil power consumption, the contact part spring has enough current-carrying area. For moving spring, it is designed to be as soft as possible to reduce the reaction force while having enough current-carrying capacity.
[0003] The main way to improve the current-carrying capacity of the spring is to increase the current-carrying area of the spring, that is, to increase the thickness and width of the spring. However, the thickness or width of the spring is limited by the size. At the same time, in a limited size, thickening the moving spring will inevitably increase the coil power consumption to provide more suction, resulting in large power loss. Therefore, the common way to improve the current-carrying capacity of the moving spring is to use a laminated structure. However, the existing moving spring laminated structure will also cause the problem of excessive reaction force when the thickness increases to a certain extent. Therefore, the length of the moving spring is mainly increased to achieve softness and increase the swing amplitude. However, this will result in a relatively large size of the relay, which cannot be realized for small-size products. SUMMARY
[0004] The utility model provides a kind of moving spring armature component and electromagnetic relay to solve the technical problems existing in prior art, which can realize large load capacity and low coil power consumption in small size.
[0005] The utility model discloses a kind of moving spring armature components, including armature, spring piece assembly and the moving contact of being set to spring piece assembly, spring piece assembly includes at least one first moving spring and at least one second moving spring stacked together, the armature is located the side of the spring piece assembly in thickness direction;The first moving spring is connected with the armature, the second moving spring is not connected with the armature, and the second moving spring is located the side of the first moving spring away from the armature.
[0006] Further, the first moving spring and the second moving spring respectively include first sheet body, second sheet body, and the bending part that is arranged between the first sheet body and the second sheet body and forms an included angle;Each first sheet body is stacked together, and the moving contact is arranged at the end away from the bending part;The first sheet body of the first moving spring is connected with the armature, and the end of the armature away from the moving contact enters the bending part to cooperate with the knife edge of the yoke iron of the relay;Each second sheet body is stacked together, and the conductive lead-out piece or the yoke iron of the relay is connected.
[0007] Further, the conductive lead-out piece comprises a connecting part and a pin part arranged on the connecting part, the connecting part connects the second pieces, and the connecting part is provided with a receiving groove corresponding to the yoke of the relay, so as to accommodate the yoke of the relay.
[0008] Further, the first moving spring piece is riveted to the armature, and the second moving spring piece is provided with a clearance hole corresponding to the connecting point of the first moving spring piece and the armature.
[0009] Further, the bending part is provided with a long hole, and two ends of the long hole extend to the first piece and the second piece respectively.
[0010] The utility model further provides a kind of electromagnetic relay, including static spring part, static spring part includes static spring piece and the static contact point of being arranged in static spring piece;Further including the moving spring armature part as above-mentioned utility model, the dynamic contact point is matched with static contact point.
[0011] Further, the static spring part includes a plurality of the static contact points arranged side by side, the dynamic contact point is provided as a plurality, the plurality of the dynamic contact points and the plurality of static contact points one-to-one correspond, so that the plurality of static contact points and the plurality of the dynamic contact points form parallel structure in contact state.
[0012] Further, the static spring piece is provided as one, the static spring piece is provided with first static spring lead-out pin and second static spring lead-out pin distributed along the arrangement direction of the plurality of static contact points, and the plurality of static contact points are arranged on the part of the static spring piece between the first static spring lead-out pin and the second static spring lead-out pin.
[0013] Further, the first moving spring piece and the second moving spring piece are respectively provided with long slot holes between adjacent dynamic contact points, so that the part of the first moving spring piece and the second moving spring piece provided with the dynamic contact point respectively forms bifurcation.
[0014] Further, it further includes coil holder and yoke, the coil holder is provided with contact point cavity at one end in its axial direction, the static spring piece is installed in the coil holder, and the dynamic contact point, the static contact point and the armature are located in the contact point cavity;The yoke is L-shaped, and one side of the yoke is located on the other end of the coil holder in the axial direction and is connected with one end of the iron core arranged in the coil holder, and the other side of the yoke is located outside the coil holder;One end of the armature is matched at the cutting edge of the other side of the yoke.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1. The first moving reed of the reed assembly is connected to the armature, the second moving reed is located on the side of the first moving reed away from the armature and is not connected to the armature, so that the product in the attracted state is only provided with a counterforce by the first moving reed, and the second moving reed is in a free state, effectively increasing the flexibility of the reed assembly, thereby reducing the counterforce after the contact is closed. Therefore, the softness and the swing range of the reed assembly of the utility model can be realized without lengthening the length of the moving reed, so that the utility model can realize small size design on the basis of meeting large load capacity and low coil power consumption.
[0017] 2. The design of the plurality of static contacts and the plurality of moving contacts forms a parallel structure in the closed state, which can reduce the contact resistance and thus reduce the temperature rise.
[0018] 3. The static reed is designed to have double paths for leading out, which can effectively increase the current-carrying area.
[0019] The utility model will be further described in detail in combination with the drawings and examples; but the moving reed armature part and the electromagnetic relay of the utility model are not limited to the examples. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a three-dimensional structure schematic diagram of the moving reed armature part of the utility model Figure One ;
[0021] Figure 2 is a three-dimensional structure schematic diagram of the moving reed armature part of the utility model Figure Two ;
[0022] Figure 3 is a top view of the moving reed armature part of the utility model;
[0023] Figure 4 is a side view of the moving reed armature part of the utility model;
[0024] Figure 5 is a partial structure schematic diagram of the electromagnetic relay of the utility model;
[0025] Figure 6 is a three-dimensional structure schematic diagram of the static reed part of the utility model;
[0026] In the figure, 1, 1 is an armature; 2 is a moving contact; 3 is a first moving reed; 4 is a second moving reed; 41 is a let go through hole; 5 is a first piece body; 51 is a notch hole; 6 is a second piece body; 7 is a bending part; 71 is a long hole; 8 is a conductive leading-out piece; 81 is a connecting part; 811 is a tolerance groove; 82 is a pin part; 9 is a static reed; 91 is a first static reed leading-out pin; 92 is a second static reed leading-out pin; 10 is a static contact; 20 is a coil holder; 201 is a contact cavity; 30 is a yoke; 40 is a coil. DETAILED DESCRIPTION
[0027] In the utility model, the terms "first", "second" and the like are used only to distinguish similar objects, and are not used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In addition, in the description of the utility model, "multiple" means two or more, and "at least one" means one or more, unless otherwise specified.
[0028] Please see Figures 1-4 As shown in the figure, the utility model discloses a moving spring armature component, which comprises an armature 1, a reed assembly and a moving contact 2 arranged on the reed assembly, the reed assembly comprises at least one first moving reed 3 and at least one second moving reed 4 which are stacked together and can be elastically deformed, and the armature 1 is located on one side of the reed assembly in the thickness direction; the first moving reed 3 is connected with the armature 1, the second moving reed 4 is not connected with the armature 1, and the second moving reed 4 is located on the side of the first moving reed 3 away from the armature 1. In this embodiment, the first moving reed 3 and the second moving reed 4 are respectively taken as examples, but are not limited thereto.
[0029] The first moving reed 3 and the second moving reed 4 respectively comprise a first plate body 5, a second plate body 6 and a bending part 7 arranged between the first plate body 5 and the second plate body 6 and forming an included angle, specifically, the first plate body 5, the second plate body 6 and the bending part 7 are integrally formed, and the three form an L-shaped structure, the first plate body 5 and the second plate body 6 correspond to a part of two sides of the L-shaped structure, and the bending part 7 corresponds to a corner part of the L-shaped structure. The first plate bodies 5 are stacked together, and the moving contact 2 is arranged at one end away from the bending part 7. The first plate body 5 of the first moving reed 3 is connected with the armature 1, and one end of the armature 1 away from the moving contact 2 enters the bending part 7 to cooperate with the cutting edge of the yoke iron of the relay. The second plate bodies 6 are stacked together, and the conductive lead-out piece 8 is arranged. In other embodiments, the second plate bodies 6 are stacked together and connected to the yoke iron of the relay.
[0030] The conductive lead-out piece 8 comprises a connecting part 81 and a pin part 82 arranged on the connecting part 81, the connecting part 81 connects the second plate bodies 6, and the connecting part 81 is provided with a containing groove 811 corresponding to the yoke iron 30 of the relay, so as to accommodate the yoke iron of the relay. Specifically, the connecting part 81 is substantially U-shaped, the inner space of the connecting part 81 forms the containing groove 811, the pin part 82 is integrally formed at the middle position of the connecting part 81, and the extension direction of the pin part 82 is opposite to the extension direction of the two sides of the connecting part 81. The second plate bodies 6 are riveted to the connecting part 81 of the conductive lead-out piece and located outside the yoke iron.
[0031] In the embodiment, the first moving spring 3 is riveted to the armature 1, and the second moving spring 4 is provided with a through hole 41 corresponding to the connecting point of the first moving spring 3 and the armature 1, so as to facilitate the riveting connection of the first moving spring 3 and the armature 1. That is, the first moving spring 3 is riveted to the armature 1, and the riveting points are two, which are arranged side by side, and the first moving spring 4 is provided with a through hole 41, which is generally square, but not limited thereto.
[0032] The bending part 7 is provided with a long hole 71, and the two ends of the long hole 71 extend in the direction of the first body 5 and the second body 6 respectively. The long hole 71 is beneficial to improve the flexibility of the first moving spring 3 and the second moving spring 4.
[0033] Please see Figures 1-6 The utility model discloses an electromagnetic relay, including static spring part and above-mentioned moving spring armature part, and static spring part includes static spring piece 9 and the static contact 10 of being arranged at static spring piece 9, and the dynamic contact 2 is matched with static contact 10.
[0034] Further, the static spring part includes a plurality of static contacts 10 arranged side by side, and the dynamic contact 2 is provided as a plurality of dynamic contacts 2, and the plurality of dynamic contacts 2 correspond to the plurality of static contacts 10 one by one, so that the plurality of static contacts 10 and the plurality of dynamic contacts 2 form a parallel structure in the contact state, thereby reducing the contact resistance and the temperature rise. Specifically, in the embodiment, the static contact 10 and the dynamic contact 2 are taken as two examples, but not limited thereto.
[0035] In the embodiment, the static spring piece 9 is provided as one, and the static spring piece 9 is provided with a first static spring lead-out pin 91 and a second static spring lead-out pin 92 distributed along the arrangement direction of the plurality of static contacts 10, and the plurality of static contacts 10 are arranged on the part of the static spring piece 9 between the first static spring lead-out pin 91 and the second static spring lead-out pin 92. Specifically, the static spring part is generally inverted U-shaped, the first static spring lead-out pin 91 and the second static spring lead-out pin 92 correspond to the two sides of the U-shaped, and the plurality of static contacts 10 are arranged on the intermediate part of the U-shaped and extend to one side of the first static spring lead-out pin 91 and the second static spring lead-out pin 92, as shown in the figure. Figure 6 Therefore, the static spring piece 9 of the utility model is designed as double-way lead-out, which can effectively increase the current-carrying area. In other embodiments, the static spring piece is provided as a plurality of static spring pieces, and the plurality of static spring pieces correspond to the plurality of static contacts one by one.
[0036] The first moving spring sheet 3 and the second moving spring sheet 4 are respectively provided with a long strip-shaped notch hole 51 between adjacent moving contacts 2, so that the parts of the first moving spring sheet 3 and the second moving spring sheet 4 provided with the moving contacts 2 are respectively formed in a bifurcated shape. Specifically, the notch hole 51 is arranged on the first sheet body 5, and the notch hole 51 extends along the length direction of the first sheet body 5, and the notch of the notch hole 51 is located on the end face of the end of the first sheet body 5 away from the bending part 7. In this way, the parts where the moving contacts 2 are located can be separated by the notch hole 51, so that the parallel connection of multiple groups of contacts can be better realized.
[0037] The utility model also includes coil holder 20 and yoke 30, coil 40 is wound outside coil holder 20, and iron core (not embodied in the drawing) is arranged in coil holder 20. Coil holder 20 is equipped with contact cavity 201 at its axial one end, static spring sheet 9 is installed in coil holder 20, moving contact 2, static contact 10 and armature 1 are located in contact cavity 201, yoke 30 is L-shaped, and one side of yoke 30 is located on the other end of coil holder 20 in the axial direction and is connected with one end of the iron core arranged in coil holder 20, and the other side of yoke 30 is located outside coil holder 20, and one end of armature 1 is matched at the cutting edge of the other side of yoke 30 and is magnetically attracted with the other end of the iron core.
[0038] The utility model provides the counterforce by first moving spring sheet 3 only in the state of attraction, and the second moving spring sheet 4 is free, effectively increases the flexibility of spring sheet assembly, thereby reducing the counterforce after the contact is closed. Therefore, the spring sheet assembly of the utility model adopts the lamination design, and does not need to adopt the way of lengthening the length of the moving spring sheet to realize the softness of the spring sheet assembly and increase the swing, so that the utility model can realize the small size design on the basis of meeting the large load capacity and low coil power consumption.
[0039] The utility model discloses a kind of moving spring armature components and electromagnetic relay, and the part not involved is same with prior art or can be realized using prior art.
[0040] The above embodiment is only used to further illustrate the utility model of a kind of moving spring armature components and electromagnetic relay, but the utility model is not limited to the embodiment, any simple modification, equivalent change and modification according to the technical essence of the utility model to the above embodiment, all fall within the protection scope of the utility model technical scheme.
Claims
1. A moving spring armature assembly comprising an armature, a spring assembly and a moving contact provided on the spring assembly, the spring assembly comprising at least one first moving spring and at least one second moving spring stacked together, the armature being located on one side of the spring assembly in the thickness direction, characterized in that: The first moving spring plate is connected with the armature, and the second moving spring plate is not connected with the armature and is located on the side of the first moving spring plate away from the armature.
2. The moving coil armature component of claim 1, wherein: The first moving spring plate and the second moving spring plate respectively comprise first plate bodies, second plate bodies, and a bending part provided between the first plate bodies and the second plate bodies and forming an included angle; the first plate bodies are stacked together, and the moving contact is provided at the end away from the bending part; the first plate body of the first moving spring plate is connected with the armature, and the end of the armature away from the moving contact enters the bending part to be matched with the cutting edge of the yoke of the relay; the second plate bodies are stacked together, and a conductive lead-out piece is provided or the yoke of the relay is connected.
3. A moving coil armature component according to claim 1 or 2, wherein: The conductive lead-out piece comprises a connecting part and a lead pin part provided on the connecting part, the connecting part connects the second plate bodies, and the connecting part is provided with a tolerance slot corresponding to the yoke of the relay to accommodate the yoke of the relay.
4. The moving coil armature component of claim 1, wherein: The first moving spring plate is riveted with the armature, and the second moving spring plate is provided with a clearance through hole corresponding to the connecting point of the first moving spring plate and the armature.
5. The moving coil armature assembly of claim 2 wherein: The bending part is provided with a long hole, and the two ends of the long hole respectively extend to the direction of the first plate body and the second plate body.
6. An electromagnetic relay comprising a static spring portion, the static spring portion comprising a static spring leaf and a static contact provided on the static spring leaf; characterized in that: The moving spring armature part as claimed in any one of claims 1-5 is further provided, and the moving contact is matched with the static contact.
7. The electromagnetic relay according to claim 6, characterized in that: The static spring part comprises a plurality of static contacts arranged in parallel, and the moving contact is provided in plurality, and the plurality of moving contacts correspond to the plurality of static contacts one by one, so that the plurality of static contacts and the plurality of moving contacts form a parallel structure in the contact state.
8. The electromagnetic relay according to claim 7, characterized in that: The static spring plate is provided as one, and the static spring plate is provided with a first static spring lead-out pin and a second static spring lead-out pin distributed along the arrangement direction of the plurality of static contacts, and the plurality of static contacts are arranged on the part of the static spring plate between the first static spring lead-out pin and the second static spring lead-out pin.
9. The electromagnetic relay of claim 7, wherein: The first moving spring plate and the second moving spring plate are respectively provided with a long slot between adjacent moving contacts, so that the parts of the first moving spring plate and the second moving spring plate provided with the moving contacts respectively form a bifurcated shape.
10. The electromagnetic relay of claim 6, wherein: The coil holder and the yoke are further provided, the coil holder is provided with a contact cavity at one end in the axial direction, the static spring plate is mounted on the coil holder, and the moving contact, the static contact, and the armature are located in the contact cavity; the yoke is in the shape of L, one side of the yoke is located on the other end of the coil holder in the axial direction and connected with one end of the core provided in the coil holder, and the other side of the yoke is located outside the coil holder; one end of the armature is matched with the cutting edge of the other side of the yoke.