High-overload low-resistance electric appliance reed
By using a multi -layer reed combination design and optimizing the riveting structure in the magnetic maintenance relay, the power is too large due to the insufficient power of the reed structure. Essence
Patent Information
- Application Number
- CN202420936545.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Under the condition of volume limitation, the reed of the magnetic holding relay cannot further reduce the structural deflection force, resulting in excessive product power, affecting energy-saving performance and product life.
The multi -layer reed combination design is adopted, with a total of 5 reeds. Through overlapping riveting design, the sandwich structure is formed to increase the front -side diversion riveting area and the U -shaped arc reduction area, and optimize the position of the riveting to reduce the structural deflection.
A significant reduction of structural deflection, reducing the input power of the product, improving the overload performance and life of the product, and reducing production cost and structural complexity.
Smart Images
Figure CN222421806U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the field of magnetic latching relays, in particular to a high-overload and low-resistance electrical reed. [Background technology]
[0002] Magnetic latching relays are widely used in smart meters, reactive power compensation, intelligent control equipment and other fields. They are environmentally friendly relays. As long as the coil is energized, the relay contacts can be opened and closed. After completion, the coil does not need to be energized to maintain the state. The magnetic latching relay is maintained by the magnetism of the permanent magnet. The difference between magnetic latching relays and general relays is that they have a holding function. Once the pulse is triggered, the relay will maintain its original state even if the coil is powered off. Therefore, this type of relay has the effect of energy saving and electricity saving, which is in line with the development direction of the current social conservation society.
[0003] In practical applications, the main function of magnetic latching relays is to turn off and on power. Under a certain volume, the switch driving capability and reed overload capacity, and the energy-saving capability of magnetic latching relays are directly related to the switch contact mechanism and the magnetic holding force mechanism. Specifically, the greater the structural deflection force, the larger the magnetic holding force mechanism is required to maintain the switch in a reliable state, and the greater the required switching energy power, resulting in lower energy utilization. Especially under conditions of limited volume, the use of excessive energy power will result in systemic risks in finished products, resulting in a significant reduction in the product life cycle.
[0004] like Figure 1 As shown, the current general relay products can partially reduce the driving performance of the product by placing the riveting point of the reed assembly in the middle of the dynamic spring seat and adding a U-shaped deflection reduction area. However, under the condition of limited volume, the deflection force of the reed structure can no longer be optimized, resulting in a significant reduction in the structural reliability of the relay. It is necessary to significantly increase the power supply of the relay, which greatly reduces the energy-saving efficiency of the relay and cannot meet the power limit requirements of the relay.
[0005] like Figure 2 As shown, in the current traditional performance enhancement process, in order to solve the problem of deflection force optimization, the enhanced reed of the existing small-volume relay is usually designed with a middle riveted connection, that is, the riveting point between the reed assembly and the dynamic spring seat is designed in the middle. In order to reduce the structural deflection force, the product needs to make a large number of holes and grooves in the reed to reduce the deflection force, move the riveting point and the U-shaped deflection reduction area to the middle and rear ends, and increase the width of the U-shaped deflection reduction area. This solution can partially reduce the structural deflection force, but the process is complicated, which will increase additional processes and costs, the product has poor adjustability, and will reduce the product overload capacity, affecting the product's power usage.
[0006] Currently, there is no public method for adjusting the riveting structure of the spring leaf and the dynamic spring seat assembly to solve the problem that the spring leaf cannot further reduce the structural deflection force under the condition of limited volume, resulting in excessive product power.
[0007] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. [Contents of the utility model]
[0008] The utility model aims to provide a high overload and low resistance electrical reed to solve the technical problem in the prior art that the reed cannot further reduce the structural deflection force under the condition of limited volume, resulting in excessive power of the product.
[0009] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:
[0010] A high-overload, low-resistance electrical reed comprises a dynamic spring seat, a dynamic contact, a guide plate, and an elastic plate. The front end of the guide plate is riveted to the dynamic spring seat, a dynamic contact is provided in the middle of the riveting, and the dynamic contact is riveted to the guide plate by riveting. The elastic plate and the guide plate are riveted as one, and the riveting point of the reed and the dynamic spring seat is on the extended riveting force arm at the side end.
[0011] Furthermore, the guide plate has a total of 5 spring leaves.
[0012] Furthermore, the five reeds are respectively a first reed, a second reed, a third elastic reed, a fourth reed, and a fifth reed, and the first reed, the second reed, and the third elastic reed are designed to overlap and rivet with the fourth reed and the fifth reed in sequence.
[0013] Furthermore, the first reed, the second reed, the third elastic reed, the fourth reed and the fifth reed are provided with a front flow guide riveting area, a U-shaped arc deflection reduction area, a riveted middle part and an end elastic area.
[0014] Furthermore, the opening width and height of the U-shaped arc region of the first reed are greater than those of the U-shaped arc region of the second reed.
[0015] Furthermore, the opening width and height of the U-shaped arc region of the second spring piece are greater than those of the U-shaped arc region of the third elastic spring piece.
[0016] Furthermore, the opening width and height of the U-shaped arc region of the third elastic spring are greater than those of the U-shaped arc region of the fourth spring.
[0017] Furthermore, the opening width and height of the U-shaped arc region of the fourth reed are greater than those of the U-shaped arc region of the fifth reed.
[0018] Furthermore, the side edge of the U-shaped arc deflection reduction zone is connected to the dynamic spring seat.
[0019] Furthermore, the elastic sheet is made of any one of stainless steel and beryllium copper.
[0020] Furthermore, the high overload and low resistance electrical reed also includes a static spring seat and a static contact. The riveted middle portion is provided with a static contact matching it, and the static contact is riveted to the static spring seat by riveting.
[0021] Compared with existing technical products, the utility model has the following technical advantages:
[0022] 1. The utility model redesigns and plans the layout of the dynamic spring assembly, has a simple production process, is easy to form by stamping, has low cost, can stably control the elastic force, widens the width of the U-shaped arc deflection reduction zone, and has a stable deflection reduction effect, thereby improving the product overload performance and improving the problem of poor life of small-volume products.
[0023] 2. The utility model uses the front-end riveting method to effectively solve the problem that the requirements for products in various fields are slightly different, but because the length, width and height of the internal parts of the magnetic latching relay are limited, the space is small, and the requirements of small product size and stable performance cannot be met. The utility model product can be designed with stable performance in a small space, and can also meet the requirements of product life and overload in a small volume. The reed is integrated without adding additional processes and costs, while reducing the product structure deflection force and optimizing the product energy-saving performance.
[0024] 3. The utility model can solve the technical problem in the prior art that the reed cannot further reduce the structural deflection force under the condition of limited volume, resulting in excessive product power.
[0025] 4. Compared with the traditional structure, the deflection force of the mechanism of the utility model is significantly reduced, with a reduction of 50-80%, which can improve the stability of product performance and reduce product costs by at least 30%.
Brief Description of the Drawings
[0026] Figure 1 The performance of traditional products does not meet the design schematics;
[0027] Figure 2 It is a traditional process to reduce the structural winding force optimization mechanism, U-shaped backward shift schematic diagram;
[0028] Figure 3 It is a schematic diagram of the first front end riveting method of the high overload and low resistance electrical reed of the utility model embodiment 1;
[0029] Figure 4 This is a schematic diagram of the second front end riveting method of the high overload and low resistance electrical reed of the utility model embodiment 2;
[0030] Figure 5 This is a schematic diagram of a riveting method for the front flat sheet of a high overload and low resistance electrical reed of Embodiment 3 of the utility model;
[0031] Figure 6 This is a schematic diagram of the second riveting method of the front flat sheet of the high overload and low resistance electrical reed of the fourth embodiment of the utility model;
[0032] Figure 7 This is a schematic diagram of the structure of a high overload and low resistance electrical reed according to Embodiment 5 of the utility model;
[0033] Figure 8 It is a schematic diagram of the analysis of a high overload and low resistance electrical reed according to Embodiment 5 of the present utility model. [Specific implementation method]
[0034] The present invention is further described in detail below in conjunction with specific implementations and in conjunction with the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.
[0035] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts unless otherwise specifically stated.
[0036] Example 1
[0037] The high overload low resistance electrical reed of this embodiment is as follows Figure 3 As shown, this form is the basic form 1 of the design mechanism, including a moving spring seat, a moving contact, a guide piece, and an elastic piece. The guide piece has a total of 5 spring pieces, and the first spring piece, the second spring piece, and the third elastic spring piece are designed by overlapping and riveting with the fourth spring piece and the fifth spring piece in sequence. The first spring piece, the second spring piece, and the third elastic spring piece are provided with a front side guide riveting area, a U-shaped arc deflection reduction area, a riveted middle part, and an end elastic area. The opening width and height of the U-shaped arc area of the first spring piece are greater than those of the U-shaped arc area of the second spring piece, the opening width and height of the U-shaped arc area of the second spring piece are greater than those of the U-shaped arc area of the third elastic spring piece, the opening width and height of the U-shaped arc area of the third elastic spring piece are greater than those of the U-shaped arc area of the fourth spring piece, and the opening width and height of the U-shaped arc area of the fourth spring piece are greater than those of the U-shaped arc area of the fifth spring piece. The front end of the guide plate is riveted to the dynamic spring seat, and a dynamic contact is provided in the middle of the riveting. The dynamic contact is riveted to the guide plate by riveting. The riveting point of the integral riveted spring plate of the elastic plate and the guide plate and the dynamic spring seat is on the extended riveting force arm at the side end. The elastic plate is made of common material beryllium copper.
[0038] Example 2
[0039] The high overload low resistance electrical reed of this embodiment is as follows Figure 4 As shown, this form is the front-end reverse form of the basic form 1 (Example 1) of the design mechanism, and the structural modification can meet the reverse riveting positioning requirements of the riveting mold. The design mechanism includes a dynamic spring seat, a dynamic contact, a guide plate, and an elastic plate. The guide plate has a total of 5 spring plates, and the first spring plate, the second spring plate, and the third elastic spring plate are designed by overlapping and riveting with the fourth spring plate and the fifth spring plate in sequence. The first spring plate, the second spring plate, and the third elastic spring plate are provided with a front-side guide riveting area, a U-shaped arc deflection reduction area, a riveting middle part, and an end elastic area. The opening width and height of the U-shaped arc area of the first spring plate are greater than those of the U-shaped arc area of the second spring plate, the opening width and height of the U-shaped arc area of the second spring plate are greater than those of the U-shaped arc area of the third elastic spring plate, the opening width and height of the U-shaped arc area of the third elastic spring plate are greater than those of the U-shaped arc area of the fourth spring plate, and the opening width and height of the U-shaped arc area of the fourth spring plate are greater than those of the U-shaped arc area of the fifth spring plate. The front end of the guide plate is riveted to the dynamic spring seat, and a dynamic contact is provided in the middle of the riveting. The dynamic contact is riveted to the guide plate by riveting. The riveting point of the integral riveted spring plate of the elastic plate and the guide plate and the dynamic spring seat is on the extended riveting force arm at the side end. The elastic plate is made of common material beryllium copper.
[0040] Example 3
[0041] The high overload low resistance electrical reed of this embodiment is as follows Figure 5 As shown, this form is the second basic form of the design mechanism. The structural modification is compatible with the traditional spring seat structure design, with less modification to the traditional structure, and has a significant effect on reducing the deflection value compared with the traditional structure. The design mechanism includes a moving spring seat, a moving contact, a guide plate, and an elastic plate. The guide plate has a total of 5 spring plates. The first spring plate, the second spring plate, and the third elastic spring plate are designed by overlapping and riveting with the fourth spring plate and the fifth spring plate in sequence. The first spring plate, the second spring plate, and the third elastic spring plate are provided with a front side guide riveting area, a U-shaped arc deflection reduction area, a riveted middle part, and an end elastic area. The opening width and height of the U-shaped arc area of the first spring plate are greater than those of the U-shaped arc area of the second spring plate, the opening width and height of the U-shaped arc area of the second spring plate are greater than those of the U-shaped arc area of the third elastic spring plate, the opening width and height of the U-shaped arc area of the third elastic spring plate are greater than those of the U-shaped arc area of the fourth spring plate, and the opening width and height of the U-shaped arc area of the fourth spring plate are greater than those of the U-shaped arc area of the fifth spring plate. The front end of the guide plate is riveted to the dynamic spring seat, and a dynamic contact is provided in the middle of the riveting. The dynamic contact is riveted to the guide plate by riveting. The riveting point of the spring plate and the dynamic spring seat is on the convex plane riveting point, and the elastic plate is made of common material beryllium copper.
[0042] Example 4
[0043] The high overload low resistance electrical reed of this embodiment is as follows Figure 6 As shown, this form is the reverse structure of the basic form 2 (Example 3) of the design mechanism. This structural modification is compatible with the traditional spring seat structure design and the requirements of reverse riveting of the traditional structure. It has a significant effect on reducing the deflection value compared with the traditional structure. The design mechanism includes a moving spring seat, a moving contact, a guide plate, and an elastic plate. The guide plate has a total of 5 spring plates. The first spring plate, the second spring plate, and the third elastic spring plate are designed by overlapping and riveting with the fourth spring plate and the fifth spring plate in sequence. The first spring plate, the second spring plate, and the third elastic spring plate are provided with a front side guide riveting area, a U-shaped arc deflection reduction area, a riveted middle part, and an end elastic area. The opening width and height of the U-shaped arc area of the first spring plate are greater than those of the U-shaped arc area of the second spring plate, the opening width and height of the U-shaped arc area of the second spring plate are greater than those of the U-shaped arc area of the third elastic spring plate, the opening width and height of the U-shaped arc area of the third elastic spring plate are greater than those of the U-shaped arc area of the fourth spring plate, and the opening width and height of the U-shaped arc area of the fourth spring plate are greater than those of the U-shaped arc area of the fifth spring plate. The front end of the guide plate is riveted to the dynamic spring seat, and a dynamic contact is provided in the middle of the riveting. The dynamic contact is riveted to the guide plate by riveting. The riveting point of the integral riveted spring plate of the elastic plate and the guide plate and the dynamic spring seat is on the extended riveting force arm at the side end. The elastic plate is made of common material beryllium copper.
[0044] Example 5
[0045] In the embodiment of the present utility model, Figure 7 , Figure 8As shown, a high overload and low resistance electrical reed comprises a static spring seat 1, a dynamic spring seat 5, a static contact 2, a dynamic contact 3, a guide plate, and an elastic plate. The guide plate has a total of 5 spring plates, and the first spring plate 4-1, the second spring plate 4-2, and the third elastic spring plate 4-3 are overlapped and riveted with the fourth spring plate 4-4 and the fifth spring plate 4-5 in sequence. The first spring plate 4-1, the second spring plate 4-2, and the third elastic spring plate 4-3 are overlapped and riveted with the fourth spring plate 4-4 and the fifth spring plate 4-5, and the first spring plate 4-1, the second spring plate 4-2, and the third elastic spring plate 4-3 are overlapped and riveted with the fourth spring plate 4-4 and the fifth spring plate 4-5, and the front side guide riveting area, the U-shaped arc reduction The deflection zone, the riveted middle part, and the terminal elastic zone, the opening width and height of the U-shaped arc zone of the first spring piece 4-1 are greater than the U-shaped arc zone of the second spring piece 4-2, the opening width and height of the U-shaped arc zone of the second spring piece 4-2 are greater than the U-shaped arc zone of the third elastic spring piece 4-3, the opening width and height of the U-shaped arc zone of the third elastic spring piece 4-3 are greater than the U-shaped arc zone of the fourth spring piece 4-4, and the opening width and height of the U-shaped arc zone of the fourth spring piece 4-4 are greater than the U-shaped arc zone of the fifth spring piece 4-5. The front end of the guide plate is riveted on the dynamic spring seat 5, and the riveted middle part is provided with a dynamic contact 3 and a static contact 2 matched therewith. The static contact 2 is riveted on the static spring seat 1 by riveting, and the dynamic contact 3 is riveted on the guide plate by riveting. The riveting point of the spring plate and the dynamic spring seat 5, which are riveted integrally with the guide plate, is on the extended riveting force arm at the side end, and the elastic plate is made of common material beryllium copper.
[0046] The technical principle of this utility model:
[0047] In practical applications, the main function of magnetic latching relays is to turn off and on power. Under a certain volume, the switch driving capacity and reed overload capacity, and the energy-saving ability of magnetic latching relays are directly related to the switch contact mechanism and the magnetic holding force mechanism. Especially under conditions of limited volume, the finished product with excessive energy power will have systemic risks, resulting in a significant reduction in the product life cycle. The utility model forms a guide plate by combining multiple layers of spring plates, with a total of 5 spring plates. The sandwich structure of the overlapping riveted design of the first spring plate, the second spring plate and the third elastic spring plate and the fourth spring plate and the fifth spring plate replaces the single-layer elastic structure of the traditional spring plate-elastic spring plate, so that the structural deflection stability is significantly improved. The above spring plate designs the front side guide riveting area, the U-shaped arc deflection reduction area, the riveted middle part and the end elastic area, which increase the riveting performance of the front side guide riveting area. The width of the U-shaped arc deflection reduction area is widened and the position of the riveting point is adjusted, so that the deflection force can be reduced by 50%-80%, and the manufacturing cost is lower, the effect is stable, and the product overload performance is improved. Products with stable performance can be designed in a small space, and the requirements of the product efficacy and energy saving that the deflection value of the relay product with a small volume is too large to meet the requirements of the product efficacy and energy saving can be met, the process and cost are reduced by at least 30%, the product cost advantage is improved, and the product performance stability is improved. Compared with the magnetic latching relay of the same volume, the overall input power can be reduced by 50%, which is in line with the optimization direction of energy saving and efficiency improvement.
[0048] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the relevant technical field, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of patent protection of the utility model determined by the submitted claims.
Claims
1. A high overload and low resistance electrical reed, characterized in that: It includes a dynamic spring seat, a dynamic contact, a guide plate, and an elastic plate. The front side end of the guide plate is riveted to the dynamic spring seat, and a dynamic contact is provided in the middle of the riveting. The dynamic contact is riveted to the guide plate by riveting. The elastic plate and the guide plate are riveted together. The riveting point of the spring plate and the dynamic spring seat is on the extended riveting force arm at the side end.
2. A high overload and low resistance electrical reed as claimed in claim 1, characterized in that: The guide plate has 5 spring leaves in total.
3. A high overload and low resistance electrical reed as claimed in claim 2, characterized in that: The five reeds are respectively a first reed, a second reed, a third elastic reed, a fourth reed and a fifth reed. The first reed, the second reed and the third elastic reed are overlapped and riveted with the fourth reed and the fifth reed in sequence.
4. A high overload and low resistance electrical reed as claimed in claim 3, characterized in that: The first reed, the second reed, the third elastic reed, the fourth reed and the fifth reed are provided with a front flow guide riveting area, a U-shaped arc deflection reduction area, a riveted middle part and a terminal elastic area.
5. A high overload and low resistance electrical reed as claimed in claim 4, characterized in that: The opening width and height of the U-shaped arc area of the first reed are greater than those of the U-shaped arc area of the second reed.
6. A high overload and low resistance electrical reed as claimed in claim 4, characterized in that: The opening width and height of the U-shaped arc area of the second spring piece are greater than those of the U-shaped arc area of the third elastic spring piece.
7. A high overload and low resistance electrical reed as claimed in claim 4, characterized in that: The opening width and height of the U-shaped arc area of the third elastic spring are greater than those of the U-shaped arc area of the fourth spring.
8. A high overload and low resistance electrical reed as claimed in claim 4, characterized in that: The opening width and height of the U-shaped arc region of the fourth reed are greater than those of the U-shaped arc region of the fifth reed.
9. A high overload and low resistance electrical reed as claimed in claim 4, characterized in that: The side edge of the U-shaped arc deflection reduction zone is connected to the dynamic spring seat.
10. A high overload and low resistance electrical reed according to any one of claims 1 to 9, characterized in that: It also includes a static spring seat and a static contact. The riveted middle part is provided with a static contact matching with it, and the static contact is riveted to the static spring seat by riveting.