A high-voltage direct-current relay

Abstract

The utility model relates to relay technology field discloses a high voltage direct current relay, high voltage direct current relay includes: the coil framework, the coil framework is integral type structure, the kovalev alloy spare, kovale g alloy spare is located on the coil framework, and the annular structure is fixed on kovale g alloy spare, the ceramic cover, the ceramic cover is located in kovale g alloy spare, and the two sides of ceramic cover are fixed with the arch structure, the utility model discloses high voltage direct current relay, wherein designs integral type coil framework, can to the coil winding, increase the space in the enameled wire wire head winding process, promote the smoothness in enameled wire wire head access and winding process, improved the production efficiency of the automatic winding of electromagnetic coil, wherein kovale g alloy spare is separated from copper pipe, simplifies kovale g alloy spare's structure, improves production efficiency, guarantees kovale g alloy spare and ceramic structure's air tightness, and increases the arch structure on ceramic structure, provides the space of installation layout for copper pipe, auxiliary contact structure etc.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically a high-voltage DC relay. Background Technology

[0002] In the prior art, a relay is an electrical device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity reaches a specified requirement.

[0003] Among them, relays have the following problems:

[0004] 1. The copper tube layout on Kovar metal parts makes the structure of Kovar metal parts complex, the manufacturing process cumbersome, and affects production efficiency and product airtightness qualification rate.

[0005] 2. The internal cavity space of square ceramic parts is cramped, making it difficult to arrange auxiliary contacts.

[0006] Therefore, a high-voltage DC relay needs to be designed. Utility Model Content

[0007] The purpose of this invention is to provide a high-voltage DC relay to solve the problems in the prior art.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A high-voltage DC relay, the high-voltage DC relay comprising:

[0010] The coil frame is an integral structure;

[0011] Kovar alloy component, wherein the Kovar alloy component is located on the coil frame and a ring structure is fixedly provided on the Kovar alloy component;

[0012] A ceramic cover is located inside a Kovar alloy component, and arched structures are fixed on both sides of the ceramic cover.

[0013] Furthermore, a U-shaped magnetic yoke is fixedly provided on the outside of the coil frame, and a planar magnetic yoke is fixedly provided on the U-shaped magnetic yoke, with Kovar alloy parts fixed on the planar magnetic yoke.

[0014] Furthermore, a ceramic cover is welded onto the Kovar alloy part, and a support frame is provided on the outside of the ceramic cover, with a permanent magnet fixed inside the support frame.

[0015] Furthermore, a copper tube is fixedly provided at the top of the ceramic cover, an auxiliary terminal is fixedly provided at the top of the ceramic cover, and an auxiliary stationary contact is fixedly provided on one side of the auxiliary terminal.

[0016] Furthermore, the coil frame is provided with a coil winding on the outside, the coil winding including a small coil located inside the coil frame and a large coil located outside the small coil.

[0017] Furthermore, the coil frame is provided with a moving iron core inside, a central shaft is fixedly provided on the moving iron core, a contact support is fixedly provided at the top of the central shaft, a main contact spring is fixedly provided at the top of the central shaft, and a main circuit moving contact is fixedly provided at the top of the main contact spring. A lower yoke and an upper yoke are fixedly provided on the upper and lower sides of the main circuit moving contact.

[0018] Furthermore, a contact protection component is fixedly provided on the upper yoke, and a bracket is fixedly provided between the contact protection component and the contact support. The bracket is located outside the moving contact of the main circuit, and an auxiliary moving contact bridge is fixed to the top of the contact protection component. The auxiliary moving contact bridge is connected to the auxiliary stationary contact.

[0019] Furthermore, a boss is fixedly provided on the top of the ceramic cover, and a circuit board is fixedly provided on the auxiliary stationary contact.

[0020] The beneficial effects of this utility model are:

[0021] 1. The present invention relates to a high-voltage DC relay, wherein an integrated coil frame is designed, which increases the space for the enameled wire end during the winding process, improves the smoothness of the enameled wire end entering and exiting and winding, and improves the production efficiency of automated winding of electromagnetic coils.

[0022] 2. In this utility model of high voltage DC relay, the Kovar alloy component is separated from the copper tube, which simplifies the structure of the Kovar alloy component, improves production efficiency, ensures the airtightness of the Kovar alloy component and the ceramic structure, and adds an arched structure to the ceramic structure to provide space for the installation layout of the copper tube, auxiliary contacts and other structures.

[0023] 3. The high-voltage DC relay of this utility model has an improved auxiliary contact structure, with the auxiliary contact Kovar pins arranged side by side on the same side, which simplifies the parts processing technology, improves the parts qualification rate, and thickens the inner wall of the ceramic cover to increase service life. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the high-voltage DC relay structure of this utility model;

[0026] Figure 2 This is a cross-sectional view of the high-voltage DC relay of this utility model;

[0027] Figure 3 This is a schematic cross-sectional view of the high-voltage DC relay of this utility model;

[0028] Figure 4 This is a schematic diagram of the coil frame structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the high-voltage DC relay of this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the moving contact of the main circuit of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the Kovar alloy part of this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the auxiliary moving contact bridge of this utility model.

[0033] The annotations in the attached figures are explained as follows:

[0034] 1. Coil frame; 2. U-shaped yoke; 3. Permanent magnet; 4. Support frame; 5. Kovar alloy parts; 7. Auxiliary moving contact bridge; 8. Auxiliary stationary contact; 9. Circuit board; 10. Bracket; 11. Moving iron core; 12. Coil winding; 13. Central shaft; 14. Main contact spring; 15. Lower yoke; 16. Main circuit moving contact; 17. Upper yoke; 18. Ceramic cover; 19. Auxiliary terminal; 21. Planar yoke; 51. Ring structure; 181. Copper tube. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] A high-voltage DC relay, such as Figure 1 , Figure 7 As shown, the high-voltage DC relay includes a coil frame 1, which is an integral structure. The electromagnetic coil structure is optimized to ensure the stability of the pin while increasing the space during the winding process of the enameled wire end.

[0037] A U-shaped magnetic yoke 2 is fixedly installed on the outside of the coil frame 1. A planar magnetic yoke 21 is fixedly installed on the U-shaped magnetic yoke 2. A Kovar alloy part 5 is fixedly installed on the planar magnetic yoke 21. The copper tube 181 structure matching the Kovar alloy part 5 is moved to the top of the ceramic cover 18, which reduces the risk of air leakage. A ring structure 51 is fixedly installed on the Kovar alloy part 5. The modular design can improve production efficiency and product airtightness qualification rate, and reduce product failure risk points.

[0038] A ceramic cover 18 is welded onto the Kovar alloy part 5. The upper surface of the Kovar alloy part 5 is welded and fixed to the lower surface of the ceramic cover 18. A copper tube 181 is fixedly installed on the ceramic cover 18, and a gasket for sealing is provided at the connection. A support frame 4 is provided on the outside of the ceramic cover 18. A permanent magnet 3 is fixedly installed inside the support frame 4. The support frame 4 stands on the Kovar alloy part 5. The permanent magnet 3 provides a magnetic field that acts on the inside of the ceramic cover 18.

[0039] like Figures 2-6 As shown, an auxiliary terminal block 19 is fixedly provided on the top of the ceramic cover 18.

[0040] An auxiliary stationary contact 8 is fixedly provided on one side of the auxiliary terminal 19, and an auxiliary moving contact bridge 7 is provided below the auxiliary stationary contact 8.

[0041] The coil frame 1 is provided with a coil winding 12 on its outside. The coil winding 12 includes a small coil located inside the coil frame 1 and a large coil located outside the small coil. The coil frame 1 is provided with a moving iron core 11 inside, and a magnetic sleeve is provided between the moving iron core 11 and the inner wall of the coil frame 1.

[0042] A central shaft 13 is fixedly mounted on the moving iron core 11. A reaction spring is fitted around the outside of the central shaft 13. The top of the central shaft 13 passes through the planar magnetic yoke 21 and is fixedly mounted on a contact support. A main contact spring 14 is fixedly mounted on the top of the central shaft 13. The main contact spring 14 is located on the top of the contact support, and a main circuit moving contact 16 is fixedly mounted on the top of the main contact spring 14. A lower yoke 15 is fixedly mounted below the main circuit moving contact 16. An upper yoke 17 is fixedly mounted on the main circuit moving contact 16. A contact protection component is fixedly mounted on the upper yoke 17. A bracket 10 is fixedly connected below the contact protection component, and the lower end of the bracket 10 is connected to the contact support.

[0043] The bracket 10 is located outside the lower yoke 15 and the main circuit moving contact 16. The auxiliary moving contact bridge 7 is fixedly installed on the top of the contact protection component. A boss is fixedly provided on the top of the ceramic cover 18.

[0044] The main circuit is normally open, and the auxiliary circuit is normally closed. When the coil is energized, the planar magnetic yoke generates an attractive force to attract the moving iron core 11. The moving iron core 11 drives the entire mechanism to move upward through the central shaft 13. The auxiliary moving contact bridge 7 is deformed by the boss on the ceramic cover 18, thereby realizing the disconnection of the auxiliary moving contact and the auxiliary stationary contact.

[0045] like Figure 8 As shown, a moving contact is provided at the connection between the auxiliary moving contact bridge 7 and the auxiliary stationary contact 8, and a circuit board 9 is fixedly provided on the auxiliary stationary contact 8.

[0046] The square ceramic structure is improved by arching the two sides of the ceramic cover 18 to provide the necessary components for the installation of the auxiliary contacts and copper tubes 181. The thickness of the ceramic cover 18 is also increased, improving the yield and lifespan of the ceramic components. The ring structure 51 located outside the ceramic cover 18 increases the sealing effect at the edge of the ceramic cover 18. The auxiliary contact Kovar pins are arranged side by side on the same side, improving the component qualification rate. Furthermore, the coil frame 1 and the wiring terminals on the circuit board 9 are located on the same side, which improves the overall component qualification rate and lifespan.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-voltage DC relay, characterized in that, High-voltage DC relays include: Coil frame (1), wherein the coil frame (1) is an integral structure; Kovar alloy component (5), the Kovar alloy component (5) is located on the coil frame (1), and a ring structure (51) is fixedly provided on the Kovar alloy component (5); A ceramic cover (18) is located inside the Kovar alloy part (5), and arched structures are fixed on both sides of the ceramic cover (18).

2. The high-voltage DC relay according to claim 1, characterized in that, The coil frame (1) is fixedly provided with a U-shaped magnetic yoke (2), and a planar magnetic yoke (21) is fixedly provided on the U-shaped magnetic yoke (2). The Kovar alloy part (5) is fixed on the planar magnetic yoke (21).

3. The high-voltage DC relay according to claim 1, characterized in that, A ceramic cover (18) is welded onto the Kovar alloy part (5), and a support frame (4) is provided on the outside of the ceramic cover (18). A permanent magnet (3) is fixed inside the support frame (4).

4. The high-voltage DC relay according to claim 3, characterized in that, A copper tube (181) is fixedly provided at the top of the ceramic cover (18), an auxiliary terminal (19) is fixedly provided at the top of the ceramic cover (18), and an auxiliary stationary contact (8) is fixedly provided on one side of the auxiliary terminal (19).

5. The high-voltage DC relay according to claim 1, characterized in that, The coil frame (1) is provided with a coil winding (12) on the outside. The coil winding (12) includes a small coil located inside the coil frame (1) and a large coil located outside the small coil.

6. The high-voltage DC relay according to claim 1, characterized in that, The coil frame (1) is provided with a moving iron core (11) inside. A central shaft (13) is fixed on the moving iron core (11). A contact support is fixed at the top of the central shaft (13). A main contact spring (14) is fixed at the top of the central shaft (13). A main circuit moving contact (16) is fixed at the top of the main contact spring (14). A lower yoke (15) and an upper yoke (17) are fixed on the upper and lower sides of the main circuit moving contact (16).

7. The high-voltage DC relay according to claim 6, characterized in that, The upper yoke (17) is fixedly provided with a contact protection component, and a bracket (10) is fixedly provided between the contact protection component and the contact support. The bracket (10) is located outside the moving contact (16) of the main circuit. The auxiliary moving contact bridge (7) is fixed to the top of the contact protection component and is connected to the auxiliary stationary contact (8).

8. The high-voltage DC relay according to claim 1, characterized in that, The ceramic cover (18) is fixedly provided with a boss at the top, and the auxiliary stationary contact (8) is fixedly provided with a circuit board (9).

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