A super small high-power magnetic latching relay

Abstract

The utility model relates to a super small -size high -power magnetic latching relay passes to the structure that the static contact point is inwardly recessed, the structure that the movable contact point is outwardly convex and both are adapted, and this concave -convex cooperation design can make the movable contact point and static contact point form more compact, stable connection when contacting, compared with the traditional plane contact mode, the concave -convex structure can effectively increase the contact area, reduce the contact resistance, reduce the electric spark and the heating phenomenon produced because of the poor contact, thereby significantly improve the stability and reliability of relay work, prolong its service life, the adaptive structure of movable contact point and static contact point helps optimization current transmission path, the concave -convex structure can guide the current more smoothly through the contact, reduce the loss and distortion of current in the transmission process, improve current transmission efficiency, especially suitable for high -power application scene, can satisfy the equipment demand of the higher quality and stability requirement of current transmission.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, and in particular to an ultra-miniature high-power magnetic latching relay. Background Technology

[0002] With the rapid development of power electronics technology, high-power equipment is increasingly widely used in various fields, placing higher and higher demands on the performance of magnetic latching relays, which are key control components. Traditional magnetic latching relays have limitations in contact structure when dealing with high-power applications. Most traditional relays use a planar contact method, which results in a limited effective contact area between the moving and stationary contacts, leading to higher contact resistance. Furthermore, traditional magnetic latching relays are often not compact enough in their structural design, resulting in a larger size that makes it difficult to meet the miniaturization and integration requirements of modern equipment, especially in space-constrained high-power applications. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an ultra-small high-power magnetic latching relay with reliable contact structure, convenient installation and connection, and reasonable structural design.

[0004] To achieve the above objectives, this utility model employs an ultra-miniature high-power magnetic latching relay, comprising a housing, within which are arranged a coil assembly, an armature assembly, a conductive sheet assembly, a stationary sheet assembly, and a push sheet. The stationary sheet assembly is provided with a stationary contact, which has an inwardly recessed structure. The conductive sheet assembly is provided with a moving contact corresponding to the stationary contact, which has an outwardly protruding structure. The moving contact is adapted to the stationary contact.

[0005] The beneficial effects of the above structure are as follows: the inwardly concave structure of the stationary contact and the outwardly convex structure of the moving contact, which are adapted to each other, enable the moving and stationary contacts to form a tighter and more stable connection when in contact. Compared with the traditional planar contact method, the concave-convex structure can effectively increase the contact area, reduce contact resistance, and reduce electrical sparks and heat generation caused by poor contact. This significantly improves the stability and reliability of the relay operation and extends its service life. The adapted structure of the moving and stationary contacts helps to optimize the current transmission path. The concave-convex structure can guide the current to pass through the contacts more smoothly, reduce the loss and distortion of the current during transmission, and improve the current transmission efficiency. It is especially suitable for high-power applications and can meet the needs of equipment with high requirements for current transmission quality and stability.

[0006] This utility model is further configured as follows: the stationary plate assembly includes a stationary plate and a stationary contact. One end of the stationary plate extends outward to the outside of the housing through a socket groove, and the other end of the stationary plate is fitted with a stationary contact. The extension of one end of the stationary plate outward through the socket groove makes it easier to install the stationary plate assembly onto the housing, and the extension of the stationary plate to the outside of the housing facilitates the connection of external circuitry.

[0007] This utility model is further configured as a conductive sheet assembly comprising a conductive sheet, a small shunt sheet, a moving spring, and a shunt sheet. One end of the conductive sheet extends outward from the housing through a conductive groove, and the other end of the conductive sheet is provided with a rotating shaft. The rotating shaft is rotatably connected to the small shunt sheet, the moving spring, and the shunt sheet in sequence. One end of the small shunt sheet, the moving spring, and the shunt sheet is provided with a moving contact corresponding to the stationary contact. By designing the conductive sheet assembly to include multiple parts such as a conductive sheet, a small shunt sheet, a moving spring, and a shunt sheet, and achieving rotatable connection through a rotating shaft, this layered and orderly structural design makes full use of the internal space of the housing. The rotating shaft is rotatably connected to the small shunt sheet, the moving spring, and the shunt sheet in sequence. This connection method provides stable mechanical support for each component. During the operation of the relay, the moving contact and the stationary contact will frequently come into contact and separate. The connection of the rotating shaft ensures that the small shunt sheet, the moving spring, and the shunt sheet maintain a stable relative position during operation, without loosening or misalignment.

[0008] This invention further specifies that the concave structure of the stationary contact is an arc-shaped concave surface, and the convex structure of the moving contact is an arc-shaped convex surface that matches the arc-shaped concave surface. Through the matching of the arc-shaped concave and convex surfaces, compared to traditional planar contact, the contact surfaces can fit more fully when the moving and stationary contacts are in contact. Under the same pressure, this matching curved surface structure can significantly increase the actual effective contact area. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0010] Figure 2 This is a front view of the internal structure of the shell according to an embodiment of the present utility model.

[0011] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the shell according to an embodiment of the present utility model.

[0012] Figure 4 This is a schematic diagram of the cooperation between the moving contact and the stationary contact in an embodiment of this utility model.

[0013] Figure 5 This is a schematic diagram showing another angle of engagement between the moving contact and the stationary contact in an embodiment of this utility model. Detailed Implementation

[0014] like Figures 1-5 As shown, an embodiment of this utility model provides an ultra-small high-power magnetic latching relay, including a housing 1. Inside the housing 1, a coil assembly 2, an armature assembly 3, a conductive sheet assembly 4, a stationary sheet assembly 5, and a pusher sheet 6 are arranged in sequence. The components cooperate with each other to realize the magnetic latching and conductive functions of the relay. The housing 1 is composed of a base 11 and an upper cover 12 covering the base 11.

[0015] The stationary plate assembly 5 consists of a stationary plate 51 and a stationary contact 52. One end of the stationary plate 51 extends outward to the outside of the housing 1 through a plug-in slot opened on the housing 1 so as to connect with an external circuit. The other end of the stationary plate 51 is equipped with a stationary contact 52, which has an inwardly recessed structure, specifically an arc-shaped concave surface 521.

[0016] The conductive sheet assembly 4 includes a conductive sheet 41, a small shunt sheet 42, a moving spring sheet 43, and a shunt sheet 44. One end of the conductive sheet 41 extends outward through a conductive groove on the housing 1 to the outside of the housing 1 for connecting to an external circuit. The other end of the conductive sheet 41 is provided with a rotating shaft 411, which is rotatably connected to the small shunt sheet 42, the moving spring sheet 43, and the shunt sheet 44 in sequence, so that the small shunt sheet 42, the moving spring sheet 43, and the shunt sheet 44 can rotate around the rotating shaft 411. One end of the small shunt sheet 42, the moving spring sheet 43, and the shunt sheet 44 is provided with a moving contact 45 corresponding to the stationary contact 52. The moving contact 45 has an outwardly protruding structure and is an arc-shaped convex surface 451 that matches the arc-shaped concave surface of the stationary contact 52.

[0017] The coil assembly 2 includes a frame 21 and an iron core 22. The frame 21 is located inside the housing 1 and provides a support structure for the entire coil assembly 2. The iron core 22 is inserted into the frame 21 and extends to the outside of the frame 21 at both ends. The two ends of the iron core 22 are respectively connected to a first yoke 23 and a second yoke 24. A winding group 25 is wound on the frame 21 to generate a magnetic field. At the same time, a pin 26 is also inserted on the frame 21. The pin 26 extends outward corresponding to the pin slot opened on the housing 1 so as to connect with an external control circuit to realize the control of the relay's working state.

[0018] The armature assembly 3 consists of a plastic part 31, a first armature plate 32, and a second armature plate 33. A magnet 34 is provided inside the plastic part 31 to provide a magnetic foundation for the armature assembly 3. The first armature plate 32 and the second armature plate 33 are respectively inserted into the plastic part 31, and both ends extend to the outside of the plastic part 31. The first yoke 23 in the coil assembly 2 corresponds to one end of the first armature plate 32 and the second armature plate 33, and the second yoke 24 corresponds to the other end of the first armature plate 32 and the second armature plate 33. This arrangement allows the magnetic field generated by the coil assembly 2 to act on the armature assembly 3, realizing the magnetic holding function. In addition, a pusher 6 is correspondingly provided on the plastic part 31. The pusher 6 can push the conductive plate assembly 4 when the armature assembly 3 is activated, so that the moving contact 45 contacts or separates from the stationary contact 52, thereby controlling the on / off of the circuit.

[0019] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An ultra-miniature high-power magnetic latching relay, comprising a housing, wherein the housing contains a coil assembly, an armature assembly, a conductive sheet assembly, a stationary sheet assembly, and a pusher sheet, characterized in that: The stationary plate assembly is provided with a stationary contact, which has an inwardly recessed structure. The conductive plate assembly is provided with a moving contact corresponding to the stationary contact, which has an outwardly protruding structure. The moving contact is adapted to the stationary contact.

2. The ultra-miniature high-power magnetic latching relay according to claim 1, characterized in that: The stationary plate assembly includes a stationary plate and a stationary contact. One end of the stationary plate extends outward to the outside of the housing through a slot formed on the housing, and the other end of the stationary plate is equipped with a stationary contact.

3. The ultra-miniature high-power magnetic latching relay according to claim 2, characterized in that: The conductive sheet assembly includes a conductive sheet, a small shunt sheet, a moving spring, and a shunt sheet. One end of the conductive sheet extends outward to the outside of the housing through a conductive groove opened on the housing. The other end of the conductive sheet is provided with a rotating shaft. The rotating shaft is rotatably connected to the small shunt sheet, the moving spring, and the shunt sheet in sequence. One end of the small shunt sheet, the moving spring, and the shunt sheet is provided with a moving contact corresponding to the stationary contact.

4. The ultra-miniature high-power magnetic latching relay according to claim 1, characterized in that: The concave structure of the stationary contact is an arc-shaped concave surface, and the convex structure of the moving contact is an arc-shaped convex surface that matches the arc-shaped concave surface.

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