Relay with auxiliary contact

Abstract

The utility model discloses a relay with an auxiliary contact, which comprises a relay shell, an auxiliary loop contact assembly arranged inside the bottom end of the relay shell, and a main loop contact assembly arranged at the upper end inside the relay shell. The auxiliary loop contact assembly comprises an auxiliary loop moving terminal, an auxiliary loop static terminal, auxiliary loop contact points and an auxiliary loop terminal connector, the auxiliary loop moving terminal and the auxiliary loop static terminal are fixedly clamped in the bottom end of the relay shell, and the auxiliary loop contact points are arranged at the ends, close to each other, of the auxiliary loop moving terminal and the auxiliary loop static terminal; compared with the prior art, the utility model has the following advantages: the opening and closing of the contact assembly of the main loop and the opening and closing of the contact assembly of the auxiliary loop are controlled by the action of the same movable iron core, and the special requirements can be met through the design of different strokes according to the requirements; the auxiliary circuit contact assembly acts in advance before action of the main circuit contact assembly or acts simultaneously with action of the main circuit contact assembly.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a relay with auxiliary contacts. Background Technology

[0002] For high-current, high-capacity switching relays, monitoring the energization status of the main contacts is necessary to ensure safe operation and enable rapid response. Therefore, the opening and closing of the auxiliary contact circuit needs to be synchronized with the main circuit's operation to ensure signal control, transmission, and monitoring. However, current market practices require the installation of a separate set of switching devices to monitor energization when the relay is on, which is not only cumbersome but also makes it difficult to guarantee synchronized connection and disconnection. Therefore, this paper proposes a relay with auxiliary contacts to solve these problems. Utility Model Content

[0003] To solve the problems mentioned above, the technical solution adopted by this utility model is: a relay with auxiliary contacts, comprising: a relay housing, an auxiliary circuit contact assembly disposed inside the bottom of the relay housing, a main circuit contact assembly disposed inside the upper part of the relay housing, the auxiliary circuit contact assembly comprising an auxiliary circuit moving terminal, an auxiliary circuit stationary terminal, an auxiliary circuit contact point, and an auxiliary circuit terminal connector, wherein the auxiliary circuit moving terminal and the auxiliary circuit stationary terminal are both fixedly snapped into the bottom of the relay housing, an auxiliary circuit contact point is disposed at the end of the auxiliary circuit moving terminal and the auxiliary circuit stationary terminal adjacent to each other, and an auxiliary circuit terminal connector is disposed at the end of the auxiliary circuit moving terminal and the auxiliary circuit stationary terminal adjacent to each other.

[0004] As a preferred embodiment of this utility model, the main circuit contact assembly includes a limiting seat, a first spring, a main circuit movable terminal, a main circuit movable contact point, a first terminal block, a second terminal block, and a main circuit stationary contact point. The first spring is snapped into the upper part of the limiting seat, the main circuit movable terminal is snapped into the limiting seat, and the bottom of both ends of the main circuit movable terminal are provided with main circuit movable contact points. The tops of the first terminal block and the second terminal block are provided with main circuit stationary contact points.

[0005] As a preferred embodiment of this utility model, the first terminal block and the second terminal block are respectively fixedly snapped into the inside of the relay housing, and the main circuit static contact point is directly opposite the main circuit moving contact point.

[0006] As a preferred embodiment of this utility model, a second spring is provided on both sides of the inner top of the relay housing, and the bottom of the second spring is connected to the main circuit movable terminal.

[0007] As a preferred technical solution of this utility model, a limiting groove is provided inside the top of the relay housing on one side of the limiting seat, and the limiting seat is slidably connected inside the limiting groove.

[0008] As a preferred technical solution of this utility model, a yoke is provided inside the relay housing above the moving terminal of the auxiliary circuit, a coil frame is provided inside the yoke, and a double coil is sleeved inside the coil frame.

[0009] As a preferred embodiment of this utility model, the bottom end of the double coil is connected to a coil terminal, the bottom of the yoke is provided with a stationary iron core, the top end of the yoke is fixedly connected to a top cover, and the middle of the top cover is fixedly connected to a fixed iron core.

[0010] As a preferred embodiment of this utility model, a moving iron core is slidably connected inside the double coil. A lower movable rod is connected to the bottom end of the moving iron core, and an upper movable rod is connected to the top end of the moving iron core. The upper movable rod slides through the fixed iron core and is connected to a limiting seat. The lower movable rod slides through the stationary iron core.

[0011] This utility model has the following advantages: The relay has a simple structure, is easy to assemble, has a small space, is a direct-acting double-coil magnetic tape auxiliary switch, and can maintain the relay switching state by using a fixed iron core in conjunction with a second spring.

[0012] The opening and closing of the main circuit contact assembly and the auxiliary circuit contact assembly are controlled by the movement of the same movable iron core. According to the requirements, special needs can be met by designing different strokes. The auxiliary circuit contact assembly moves in advance or at the same time as the main circuit contact assembly, which will reduce the time deviation in the monitoring status of the main circuit contacts. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the auxiliary circuit contact assembly and housing assembly structure of a preferred embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the auxiliary circuit contact assembly structure of a preferred embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the main circuit contact assembly structure of a preferred embodiment of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Relay housing; 2. Auxiliary circuit moving terminal; 3. Auxiliary circuit stationary terminal; 4. Auxiliary circuit contact point; 5. Auxiliary circuit terminal connector; 6. Yoke; 7. Coil frame; 8. Double coil; 9. Coil terminal; 10. Stationary iron core; 11. Top cover; 12. Fixed iron core; 13. Moving iron core; 14. Lower movable rod; 15. Upper movable rod; 16. Limit seat; 17. First spring; 18. Main circuit moving terminal; 19. Main circuit moving contact point; 20. First terminal block; 21. Second terminal block; 22. Main circuit stationary contact point; 23. Limit groove; 24. Second spring. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to the following: Figures 1-4 This utility model discloses a relay with auxiliary contacts, comprising: a relay housing 1, an auxiliary circuit contact assembly disposed inside the bottom of the relay housing 1, and a main circuit contact assembly disposed inside the upper part of the relay housing 1. The auxiliary circuit contact assembly includes an auxiliary circuit moving terminal 2, an auxiliary circuit stationary terminal 3, an auxiliary circuit contact point 4, and an auxiliary circuit terminal connector 5. The auxiliary circuit moving terminal 2 and the auxiliary circuit stationary terminal 3 are both fixedly snapped into the bottom of the relay housing 1. An auxiliary circuit contact point 4 is disposed at the end of the auxiliary circuit moving terminal 2 and the auxiliary circuit stationary terminal 3 that are close to each other. An auxiliary circuit terminal connector 5 is disposed at the end of the auxiliary circuit moving terminal 2 and the auxiliary circuit stationary terminal 3 that are close to each other.

[0022] Combination Figure 1 and Figure 4 As shown, the main circuit contact assembly includes a limiting seat 16, a first spring 17, a main circuit movable terminal 18, a main circuit movable contact point 19, a first terminal block 20, a second terminal block 21, and a main circuit stationary contact point 22. The first spring 17 is snapped into the upper part of the limiting seat 16. The first spring 17 facilitates holding the main circuit movable terminal 18 against the inside of the limiting seat 16, thus facilitating assembly. The main circuit movable terminal 18 is snapped into the inside of the limiting seat 16. Both ends of the main circuit movable terminal 18 are provided with main circuit movable contact points 19. The top of the first terminal block 20 and the second terminal block 21 are provided with main circuit stationary contact points 22. The first terminal block 20 and the second terminal block 21 are respectively fixedly snapped into the inside of the relay housing 1. The main circuit stationary contact point 22 is directly opposite the main circuit movable contact point 19. The wiring of the main circuit can be completed by simply connecting both ends of the main line to the first terminal block 20 and the second terminal block 21 respectively.

[0023] The relay housing 1 has two second springs 24 on both sides inside the top. The bottom of the second springs 24 is connected to the main circuit movable terminal 18. The top of the relay housing 1 has a limit groove 23 on one side of the limit seat 16. The limit groove 23 ensures that the limit seat 16 remains stable when sliding. The limit seat 16 is slidably connected inside the limit groove 23. The relay housing 1 has a yoke 6 above the auxiliary circuit movable terminal 2 inside the relay housing 1. The yoke 6 has a coil frame 7 inside it. The coil frame 7 has a double coil 8 inside it. The bottom of the double coil 8 is connected to the coil terminal 9. The bottom of the yoke 6 has a stationary iron core 10. The top of the yoke 6 has a stationary iron core 10. A top cover 11 is fixedly connected to the end, and a fixed iron core 12 is fixedly connected to the middle of the top cover 11. The fixed iron core 12 helps to ensure that the moving iron core 13 is attracted to the fixed iron core 12. The moving iron core 13 is slidably connected inside the double coil 8. The bottom end of the moving iron core 13 is connected to a lower movable rod 14, and the top end of the moving iron core 13 is connected to an upper movable rod 15. The upper movable rod 15 slides through the inside of the fixed iron core 12 and is connected to a limiting seat 16. The lower movable rod 14 slides through the inside of the stationary iron core 10. The double coil 8 is divided into an upper coil and a lower coil by a coil frame 7, and a magnet is set on the outside of the coil frame 7 at the interface between the upper coil and the lower coil.

[0024] Specifically, in use, this invention energizes one of the lower coils of the double coil 8 via coil terminal 9, causing the moving iron core 13 to slide downwards. Simultaneously, the elastic force of the second spring 24 causes the main circuit movable terminal 18 to descend until the main circuit movable contact point 19 at the bottom of the main circuit movable terminal 18 contacts the main circuit stationary contact point 22, thus completing the conduction of the main circuit. At the same time, as the moving iron core 13 descends, it also causes the lower movable rod 14 to descend, and the bottom of the lower movable rod 14 abuts against the auxiliary circuit movable terminal 2, thus connecting the auxiliary circuit movable terminal 2 with the auxiliary circuit stationary terminal 3, thus completing the connection of the auxiliary circuit. When it is necessary to disconnect the circuit, energizing one of the upper coils of the double coil 8 via coil terminal 9 causes the moving iron core 13 to slide upwards, thus simultaneously disconnecting the auxiliary circuit and the main circuit.

[0025] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0026] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A relay with auxiliary contact comprising: The relay shell (1) is characterized in that the bottom end of the relay shell (1) is internally provided with an auxiliary circuit contact assembly, the upper end of the relay shell (1) is internally provided with a main circuit contact assembly, the auxiliary circuit contact assembly comprises an auxiliary circuit moving terminal (2), an auxiliary circuit static terminal (3), an auxiliary circuit contact point (4), and an auxiliary circuit terminal connector (5), the auxiliary circuit moving terminal (2) and the auxiliary circuit static terminal (3) are both fixedly clamped at the bottom end of the relay shell (1), and the auxiliary circuit moving terminal (2) and the auxiliary circuit static terminal (3) are both provided with an auxiliary circuit contact point (4) at one end thereof, and the auxiliary circuit moving terminal (2) and the auxiliary circuit static terminal (3) are both provided with an auxiliary circuit terminal connector (5) at one end thereof.

2. A relay with auxiliary contact according to claim 1, characterized in that, The main circuit contact assembly comprises a limiting seat (16), a first spring (17), a main circuit movable terminal (18), a main circuit movable contact point (19), a first wiring seat (20), a second wiring seat (21), and a main circuit static contact point (22), the first spring (17) is clamped at the upper end of the limiting seat (16), the main circuit movable terminal (18) is clamped in the limiting seat (16), the main circuit movable terminal (18) is provided with a main circuit movable contact point (19) at the bottom of both ends thereof, and the first wiring seat (20) and the second wiring seat (21) are both provided with a main circuit static contact point (22) at the top end thereof.

3. A relay with auxiliary contact according to claim 2, characterized in that, The first wiring seat (20) and the second wiring seat (21) are respectively fixedly clamped in the relay shell (1), and the main circuit static contact point (22) is opposite to the main circuit movable contact point (19).

4. A relay with auxiliary contact according to claim 1, characterized in that, The relay shell (1) is provided with a second spring (24) at the top end of both sides in the interior thereof, and the second spring (24) is connected to the main circuit movable terminal (18) at the bottom.

5. A relay with auxiliary contact according to claim 1, characterized in that, The relay shell (1) is provided with a limiting groove (23) at one side of the limiting seat (16) in the interior thereof at the top end, and the limiting groove (23) is slidably connected to the limiting seat (16) in the interior thereof.

6. A relay with auxiliary contact according to claim 1, characterized in that, The relay shell (1) is provided with a yoke (6) above the auxiliary circuit moving terminal (2) in the interior thereof, the yoke (6) is provided with a coil framework (7) on the inner side thereof, and the coil framework (7) is sleeved with a double coil (8) in the interior thereof.

7. A relay with auxiliary contact according to claim 6, characterized in that, The double coil (8) is connected with a coil terminal (9) at the bottom end thereof, the yoke (6) is provided with a static iron core (10) at the bottom, the yoke (6) is fixedly connected with a top cover (11) at the top end, and the top cover (11) is fixedly connected with a fixed iron core (12) in the middle.

8. A relay with auxiliary contact according to claim 6, characterized in that, The double coil (8) is slidably connected with a moving iron core (13) in the interior thereof, the moving iron core (13) is connected with a lower movable rod (14) at the bottom end, the moving iron core (13) is connected with an upper movable rod (15) at the top end, the upper movable rod (15) is slidably penetrated through the interior of the fixed iron core (12) and connected to the limiting seat (16), and the lower movable rod (14) is slidably penetrated through the interior of the static iron core (10).

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