Relay with auxiliary contact

Abstract

The utility model discloses a relay with an auxiliary contact, which comprises a main contact assembly and an auxiliary contact assembly, the main contact assembly comprises a contact support which is movably arranged, and the auxiliary contact assembly is positioned on one side of the movement direction of the contact support. The auxiliary contact assembly comprises an auxiliary moving reed provided with an auxiliary moving contact and an auxiliary static reed provided with an auxiliary static contact, and the auxiliary moving reed is pushed by the contact support to enable the auxiliary moving contact and the auxiliary static contact to be connected or disconnected. According to the utility model, the auxiliary movable reed does not increase the weight of the contact support, so that the opening and closing speed of the main contact is not influenced, and the structural design of the contact support is more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a relay with auxiliary contacts. Background Art

[0002] An electromagnetic relay is an electronic control device that is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit.

[0003] Due to the requirements of electrical control circuits, it is generally necessary to add auxiliary contact assemblies to relays to signal the current relay's closed or open state. For relays with direct-acting main contacts, some auxiliary contact assemblies use microswitches. However, microswitches are expensive and bulky, making them unsuitable for miniaturized product designs. To address this, some auxiliary contact assemblies include auxiliary moving and static reeds. While these can address the shortcomings of microswitches, they also present the following issues: the auxiliary moving reed is typically placed directly on the contact support of the main contact, which increases the weight of the contact support, affecting its movement speed and, consequently, the opening and closing speed of the main contact. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art and provides a relay with auxiliary contacts.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a relay with auxiliary contacts, including a main contact assembly, the main contact assembly including a movably arranged contact support and an auxiliary contact assembly, the auxiliary contact assembly is located on one side of the movement direction of the contact support, and the auxiliary contact assembly includes an auxiliary moving reed provided with an auxiliary moving contact and an auxiliary static reed provided with an auxiliary static contact, the auxiliary moving reed is pushed by the contact support to close or disconnect the auxiliary moving contact and the auxiliary static contact.

[0006] Furthermore, the auxiliary contact assembly also includes an insulating auxiliary bracket, the auxiliary movable spring and the auxiliary static spring are respectively installed in the auxiliary bracket, the auxiliary movable spring is provided with a mating portion supported and pushed by the contact, the mating portion, the first lead-out piece provided for the auxiliary movable spring and the second lead-out piece provided for the auxiliary static spring are respectively exposed outside the auxiliary bracket.

[0007] Furthermore, the auxiliary bracket is provided with a first slot and a second slot on one side of the auxiliary movable spring in the width direction, the auxiliary movable spring is inserted into the first slot, and the auxiliary static spring is inserted into the second slot.

[0008] Furthermore, the auxiliary movable spring and the auxiliary static spring are respectively provided in number to form two groups of auxiliary contacts, which are arranged along the width direction of the contact support and are provided on the same auxiliary bracket, and the mating parts of the two auxiliary movable springs are arranged facing each other; an end of the auxiliary bracket facing the contact support forms a clearance groove corresponding to the contact support, and the mating parts of the two auxiliary movable springs are respectively located in the clearance grooves.

[0009] Furthermore, the auxiliary moving spring piece is provided with a first U-shaped bent portion, the openings of the first bent portions of the two auxiliary moving spring pieces are arranged opposite to each other, and one end of the first bent portion is provided with the auxiliary moving contact and extends to form the mating portion, and the other end of the first bent portion is provided with the first lead-out piece; the auxiliary static spring piece is provided with a second U-shaped bent portion, the openings of the second bent portions of the two auxiliary static spring pieces are arranged opposite to each other, and one end of the second bent portion is provided with the auxiliary static contact, and the other end of the second bent portion is provided with the second lead-out piece, and the first lead-out piece and the second lead-out piece respectively extend in a direction away from the contact support.

[0010] Furthermore, a triggering protrusion for contacting and mating with the contact support is provided on a side of the mating portion facing the contact support; a notch is provided at a portion of the contact support corresponding to the mating portion, and the mating portion enters the notch.

[0011] Furthermore, the main contact assembly also includes a moving contact bridge installed on the contact support and a static contact assembly arranged corresponding to the moving contact bridge, the static contact assembly includes two static contacts, and the two static contacts are respectively provided with static contacts, and the two ends of the moving contact bridge are respectively provided with moving contacts arranged opposite to the static contacts on the two static contacts; the auxiliary contact assembly and the static contact assembly are located on the same side of the contact support.

[0012] Furthermore, the two static contacts respectively include a contact body and a contact lead-out piece, the contact body is provided with the static contact point, and the contact lead-out pieces of the two static contacts are respectively provided at the relative outer ends of the contact bodies of the two static contacts and extend in a direction away from the contact support.

[0013] Furthermore, the moving contact bridge and the static contact assembly are respectively provided in plurality, and the plurality of moving contact bridges are arranged at intervals along the length direction of the contact support, the plurality of static contact assemblies correspond one-to-one to the plurality of moving contact bridges, and the plurality of static contact assemblies are separated on both sides of the auxiliary contact assembly in the length direction of the contact support.

[0014] Furthermore, it also includes a base, the contact support is movably arranged in the base, and a reset spring is arranged between the two; the static contact and auxiliary contact assembly are respectively inserted into the base; it also includes a magnetic circuit part located above the main contact assembly, the magnetic circuit part has a moving iron core, the moving iron core is connected to a push rod, and the contact support is pushed by the push rod, so that the moving contacts at both ends of the moving contact bridge are respectively closed or disconnected with the static contacts on the two static contacts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Because the auxiliary contact assembly of the present invention is located on one side of the movement direction of the contact support, and the auxiliary contact assembly includes an auxiliary movable spring and an auxiliary static spring, and the auxiliary movable spring is pushed by the contact support to achieve the closing or opening of the auxiliary movable contact and the auxiliary static contact, the auxiliary contact assembly of the present invention is lower in cost and smaller in size than a micro switch, which is conducive to the miniaturization of the product design. In addition, the auxiliary movable spring does not need to be located on the contact support, which does not increase the weight of the contact support and thus does not affect the opening and closing speed of the main contacts, ensuring that the opening and closing speed of the main contacts meets the requirements. In addition, the separation of the auxiliary movable spring and the contact support in the present invention can also make the structural design of the contact support more flexible, facilitating the design of functional expansion or the design of multiple sets of main contacts.

[0017] 2. The auxiliary contact assembly further includes an insulating auxiliary bracket, into which the auxiliary movable spring and the auxiliary static spring are respectively installed. This allows the present invention to utilize the auxiliary bracket to increase the creepage distance between the main contact and the auxiliary contact, and to improve the convenience of installation of the auxiliary movable spring and the auxiliary static spring, and to improve the stability of the cooperation between the auxiliary movable spring and the auxiliary static spring.

[0018] 3. The utility model has two auxiliary moving and two auxiliary static reeds, creating two sets of auxiliary contacts. This provides improved reliability and allows for different control signals. In particular, the two sets of auxiliary contacts are mounted on the same auxiliary bracket, significantly improving the ease of installation and synchronization of the auxiliary contact assembly. It also makes the two sets of auxiliary contacts more compact, reducing space usage.

[0019] 4. The auxiliary contact assembly and the static contact assembly are located on the same side of the contact support. The remaining space on the side where the static contact assembly is located can be used to arrange the auxiliary contact assembly, making the overall structure more compact and conducive to the realization of a miniaturized product design. In particular, the auxiliary movable spring is provided with a first bending portion and the auxiliary static spring is provided with a second bending portion, so that the first lead-out piece and the second lead-out piece can be arranged inward, thereby further improving the creepage distance between the main contact and the auxiliary contact. When there are multiple static contact assemblies, the multiple static contact assemblies are separated on both sides of the auxiliary contact assembly in the longitudinal direction of the contact support, so that the auxiliary contact assembly is centered, or as centered as possible, so that the auxiliary contact assembly and the contact support are more stably matched, and the auxiliary contact assembly will not be triggered due to the upward tilt of one end of the contact support.

[0020] 5. A triggering protrusion is provided on the side of the mating portion facing the contact support for contacting and mating with the contact support, which can ensure that the triggering point position of the contact support on the auxiliary movable spring is consistent each time, thereby ensuring the consistency of each action of the auxiliary movable spring.

[0021] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments; however, the present invention is not limited to the embodiments of the relay with auxiliary contacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded schematic diagram of the utility model (partially shown);

[0023] Figure 2 It is an exploded schematic diagram of the auxiliary contact assembly of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the auxiliary contact assembly of the utility model;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the contact support and auxiliary contact assembly of the utility model in the exploded state;

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0027] Figure 6 This is a front view of the contact support and auxiliary contact assembly of the present invention in the auxiliary contact closed state;

[0028] Figure 7 yes Figure 6 BB cross-sectional view;

[0029] Figure 8 This is a front view of the contact support and auxiliary contact assembly of the utility model in the auxiliary contact disconnected state;

[0030] Figure 9 yes Figure 8 CC cross-sectional view;

[0031] Figure 10 It is a top view of the base, main contact assembly, and auxiliary contact assembly of the utility model in the assembled state;

[0032] Figure 11 yes Figure 10 DD cross-sectional view;

[0033] Figure 12 It is a cross-sectional view of the utility model;

[0034] In the figure: 1. Contact support; 11. Notch; 2. Moving contact bridge; 21. Moving contact; 3. Static contact; 31. Static contact; 32. Contact lead-out piece; 4. Base; 5. Auxiliary moving spring; 51. Auxiliary moving contact; 52. Matching portion; 53. First bending portion; 54. Trigger protrusion; 55. First lead-out piece; 6. Auxiliary static spring; 61. Auxiliary static contact; 62. Second bending portion; 63. Second lead-out piece; 7. Auxiliary bracket; 71. First slot; 72. Second slot; 73. Make way slot; 8. Reset spring; 9. Magnetic circuit portion; 91. Moving iron core; 92. Push rod; 10. Middle cover; 20. Housing. DETAILED DESCRIPTION

[0035] In the present invention, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or precedence, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship.

[0036] See Figures 1-12 As shown, a relay with auxiliary contacts of the present invention includes a main contact assembly and an auxiliary contact assembly. The main contact assembly includes a movably arranged contact support 1. The auxiliary contact assembly is located on one side of the movement direction of the contact support 1, and the auxiliary contact assembly includes an auxiliary moving reed 5 provided with an auxiliary moving contact 51 and an auxiliary static reed 6 provided with an auxiliary static contact 61. The auxiliary moving reed 5 is pushed by the contact support 1 to close or open the auxiliary moving contact 51 and the auxiliary static contact 61.

[0037] In this embodiment, the auxiliary contact assembly further includes an insulating auxiliary bracket 7, into which the auxiliary movable spring 5 and the auxiliary static spring 6 are respectively mounted. Specifically, the auxiliary bracket 7 is provided with a first slot 71 and a second slot 72 on one side of the movable contact bridge 2 in the width direction. The auxiliary movable spring 5 is inserted into the first slot 71, and the auxiliary static spring 6 is inserted into the second slot 72. The width directions of the auxiliary movable spring 5 and the auxiliary static spring 6 are aligned with the width direction of the movable contact bridge 2. The auxiliary movable spring 5 is provided with a mating portion 52 that is pushed by the contact support 1. The mating portion 52, the first lead 55 of the auxiliary movable spring 5, and the second lead 63 of the auxiliary static spring 6 are respectively exposed outside the auxiliary bracket 7. In this way, the present invention utilizes the auxiliary bracket 7 to increase the creepage distance between the main contact and the auxiliary contact. Furthermore, it improves the installation convenience and the stability of the mating between the auxiliary movable spring 5 and the auxiliary static spring 6.

[0038] As a preferred embodiment, two auxiliary movable springs 5 ​​and two auxiliary static springs 6 are provided, so that the auxiliary contact assembly of the present invention forms two sets of auxiliary contacts. These two sets of auxiliary contacts are arranged along the width of the contact support 1 and are symmetrically arranged on the same auxiliary bracket 7, with the mating portions of the two auxiliary movable springs 5 ​​facing each other. The end of the auxiliary bracket 7 facing the contact support 1 forms a clearance groove 73 corresponding to the contact support 1, and the mating portions 52 of the two auxiliary movable springs 5 ​​are respectively located in the clearance groove 73.

[0039] The auxiliary movable spring piece 5 is provided with a U-shaped first bent portion 53, the openings of the first bent portions 53 of the two auxiliary movable spring pieces 5 are arranged opposite to each other, and one end of the first bent portion 53 is provided with an auxiliary movable contact 51, and extends to form a mating portion 52, and the other end of the first bent portion 53 is provided with a first lead-out piece 55; the auxiliary static spring piece 6 is provided with a U-shaped second bent portion 62, the openings of the second bent portions 62 of the two auxiliary static spring pieces 6 are arranged opposite to each other, and one end of the second bent portion 62 is provided with an auxiliary static contact 61, and the other end of the second bent portion 62 is provided with a second lead-out piece 63, and the first lead-out piece 55 and the second lead-out piece 63 respectively extend in a direction away from the contact support 1.

[0040] The main contact assembly also includes a moving contact bridge 2 mounted on the contact support 1, and a static contact assembly corresponding to the moving contact bridge 2. The static contact assembly includes two static contacts 3, each of which is provided with a static contact 31. The two ends of the moving contact bridge 2 are provided with moving contacts 21 arranged opposite the static contacts 31 on the two static contacts 3. The moving contact 21 can be provided separately from the moving contact bridge 2 and electrically connected together by riveting or other means, or it can be integrally formed. Similarly, the static contact 31 can be provided separately from the static contact 3 and electrically connected together by riveting or other means, or it can be integrally formed. The above-mentioned auxiliary contact assembly and the static contact assembly are located on the same side of the contact support 1.

[0041] The two stationary contacts 3 each include a contact body and a contact lead-out piece 32. The contact body is provided with a stationary contact point 31. The contact lead-out pieces 32 of the two stationary contacts 3 are respectively provided at opposite outer ends of the contact bodies of the two stationary contacts 3 and extend away from the contact support 1. Because the auxiliary movable spring 5 is provided with a first bent portion 53 and the auxiliary stationary spring 6 is provided with a second bent portion 62, the first lead-out pieces 55 of the two auxiliary movable springs 5 ​​and the second lead-out pieces 63 of the two auxiliary stationary springs 6 are respectively arranged inward, thereby further increasing the creepage distance between the main contact and the auxiliary contact.

[0042] In this embodiment, the open and closed states of the main contact assembly are opposite to those of the auxiliary contact assembly, and the auxiliary contact assembly is normally closed. Therefore, the auxiliary movable contact 51 is located on the side of the auxiliary static contact 61 away from the contact support 1, and in the initial state, the auxiliary movable contact 51 and the auxiliary static contact 61 are closed. In other embodiments, the open and closed states of the main contact assembly are the same as those of the auxiliary contact assembly. The mating portion 52 of each auxiliary movable spring 5 is provided on the side facing the contact support 1 with a triggering protrusion 54 for mating with the contact support 1. This ensures that the contact support 1 always triggers the auxiliary movable spring 5 at the same position, thereby ensuring consistent operation of the auxiliary movable spring 5. The contact support 1 is provided with a notched groove 11 at a location corresponding to each mating portion 52, and the mating portion 52 of each auxiliary movable spring 5 enters the corresponding notched groove 11. The provision of the notched groove 11 improves the stability of the mating between the contact support 1 and the mating portion 52.

[0043] In this embodiment, the moving contact bridge 2 and the static contact assembly are respectively provided in plurality, and the plurality of moving contact bridges 2 are arranged at intervals along the length direction of the contact support 1, and the plurality of static contact assemblies correspond one-to-one to the plurality of moving contact bridges 2, and the plurality of static contact assemblies are separated on both sides of the auxiliary contact assembly in the length direction of the contact support 1. Specifically, the example in which the moving contact bridge 2 and the static contact assembly are respectively provided in four is taken as an example, but it is not limited thereto. In this way, the present invention is applicable to a three-phase four-wire or three-phase five-wire power system. The four static contact assemblies are evenly distributed on both sides of the auxiliary contact assembly in the length direction of the contact support 1. Therefore, the auxiliary contact assembly is arranged in the center, so that the auxiliary contact assembly and the contact support 1 cooperate more stably, and the auxiliary contact assembly will not be triggered due to the upward tilt of one end of the contact support 1.

[0044] The present invention also includes a base 4, in which the contact support 1 is movably arranged, and a reset spring 8 is provided between the two. The static contact 3 and the auxiliary contact assembly are respectively inserted into the base 4. When installing the auxiliary contact assembly, it is only necessary to insert the auxiliary bracket 7 with the auxiliary movable spring 5 and the auxiliary static spring 6 installed into the base 4, and pass the first lead-out piece 55 and the second lead-out piece 63 downward through the base 4. The present invention also includes a magnetic circuit portion 9 located above the main contact assembly. The magnetic circuit portion 9 has a moving iron core 91, and the moving iron core 91 is coaxially connected to a push rod 92. The contact support 1 is pushed by the push rod 92, so that the moving contacts 21 at both ends of the moving contact bridge 2 are closed or disconnected with the static contacts 31 on the two static contacts 3.

[0045] The present invention further includes a housing 20 and a middle cover 10. The middle cover 10 is connected to the base 4 and covers the main contact assembly and the auxiliary contact assembly. The housing 20 is connected to the base 4 and / or the middle cover 10 to form a magnetic circuit cavity, and the magnetic circuit portion 9 is disposed within the magnetic circuit cavity. Specifically, in this embodiment, the housing 20 is connected to the middle cover 10 to form a magnetic circuit cavity, and the housing 20 and the middle cover 10 are connected by a snap-fit ​​connection. Similarly, the middle cover 10 and the base 4 are also connected by a snap-fit ​​connection. However, the connection method of the housing 20 and the middle cover 10, and the connection method of the middle cover 10 and the base 4 are not limited to this.

[0046] The utility model is a relay with auxiliary contacts. In the initial state, the moving contact 21 and the static contact 31 are disconnected, and the auxiliary moving contact 51 and the auxiliary static contact 61 are closed. Figure 7 When the coil of the magnetic circuit part 9 is energized, the magnetic circuit part 9 generates a magnetic field, and the moving iron core 91 moves downward with the push rod 92, thereby pushing the contact support 1 downward, so that each moving contact 21 is closed with the corresponding static contact 31. At the same time, the contact support 1 pushes the matching portion 52 of each auxiliary moving spring 5 downward, so that the auxiliary moving contact 51 is disconnected from the auxiliary static contact 61. Figure 9 When the coil of the magnetic circuit portion 9 is de-energized, the magnetic field generated by the magnetic circuit portion 9 disappears, and the contact support 1, under the action of the reset spring 8, pulls the movable contact bridges 2 upward to reset, disconnecting the movable contact 21 from the static contact 31 and causing the push rod 92 and the movable iron core 91 to reset upward. The mating portions 52 of the auxiliary movable springs 5 ​​are released, and the auxiliary movable springs 5 ​​reset themselves by their own reaction force, returning the auxiliary movable contacts 51 and the auxiliary static contacts 61 to the closed state.

[0047] The utility model provides a relay with auxiliary contacts, in which the auxiliary movable spring 5 of the auxiliary contact assembly is arranged separately from the contact support 1, so that the auxiliary movable spring 5 does not increase the weight of the contact support 1, thereby not affecting the opening and closing speed of the main contacts, ensuring that the opening and closing speed of the main contacts meets the requirements, and making the structural design of the contact support 1 more flexible, facilitating the design of functional expansion or the design of multiple groups of main contacts.

[0048] The relay with auxiliary contacts of the present invention has the following parts (such as the specific structure and working principle of the magnetic circuit part 9) which are not involved in the present invention. They are the same as those in the prior art or can be implemented by using the prior art.

[0049] The above embodiments are only used to further illustrate a relay with auxiliary contacts of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the scope of protection of the technical solution of the present invention.

Claims

1. A relay with auxiliary contacts, comprising a main contact assembly and an auxiliary contact assembly, wherein the main contact assembly includes a movable contact support; characterized in that: The auxiliary contact assembly is located on one side of the movement direction of the contact support, and the auxiliary contact assembly includes an auxiliary moving spring provided with an auxiliary moving contact and an auxiliary static spring provided with an auxiliary static contact. The auxiliary moving spring is pushed by the contact support to close or open the auxiliary moving contact and the auxiliary static contact.

2. The relay with auxiliary contacts according to claim 1, characterized in that: The auxiliary contact assembly also includes an insulating auxiliary bracket, the auxiliary movable spring and the auxiliary static spring are respectively installed in the auxiliary bracket, the auxiliary movable spring is provided with a mating portion supported and pushed by the contact, the mating portion, the first lead-out piece provided for the auxiliary movable spring, and the second lead-out piece provided for the auxiliary static spring are respectively exposed outside the auxiliary bracket.

3. The relay with auxiliary contacts according to claim 2, characterized in that: The auxiliary bracket is provided with a first slot and a second slot on one side of the auxiliary movable spring in the width direction. The auxiliary movable spring is inserted into the first slot, and the auxiliary static spring is inserted into the second slot.

4. The relay with auxiliary contacts according to claim 2, characterized in that: The auxiliary movable springs and the auxiliary static springs are respectively provided in two pieces to form two groups of auxiliary contacts. The two groups of auxiliary contacts are arranged along the width direction of the contact support and are provided on the same auxiliary bracket, and the mating parts of the two auxiliary movable springs are arranged facing each other; an end of the auxiliary bracket facing the contact support forms a clearance groove corresponding to the contact support, and the mating parts of the two auxiliary movable springs are respectively located in the clearance grooves.

5. The relay with auxiliary contacts according to claim 4, characterized in that: The auxiliary moving spring piece is provided with a first U-shaped bent portion, the openings of the first bent portions of the two auxiliary moving spring pieces are arranged opposite to each other, and one end of the first bent portion is provided with the auxiliary moving contact and extends to form the matching portion, and the other end of the first bent portion is provided with the first lead-out piece; the auxiliary static spring piece is provided with a second U-shaped bent portion, the openings of the second bent portions of the two auxiliary static spring pieces are arranged opposite to each other, and one end of the second bent portion is provided with the auxiliary static contact, and the other end of the second bent portion is provided with the second lead-out piece, and the first lead-out piece and the second lead-out piece respectively extend in a direction away from the contact support.

6. The relay with auxiliary contacts according to claim 2, characterized in that: A triggering protrusion for contacting and mating with the contact support is provided on a side of the mating portion facing the contact support; a notch is provided at a portion of the contact support corresponding to the mating portion, and the mating portion enters the notch.

7. The relay with auxiliary contacts according to any one of claims 1 to 6, characterized in that: The main contact assembly also includes a moving contact bridge installed on the contact support and a static contact assembly arranged corresponding to the moving contact bridge. The static contact assembly includes two static contacts, each of which is provided with a static contact point. Both ends of the moving contact bridge are respectively provided with moving contacts arranged opposite to the static contacts on the two static contacts. The auxiliary contact assembly and the static contact assembly are located on the same side of the contact support.

8. The relay with auxiliary contacts according to claim 7, characterized in that: The two static contacts respectively include a contact body and a contact lead-out piece, the contact body is provided with the static contact point, and the contact lead-out pieces of the two static contacts are respectively provided at the opposite outer ends of the contact bodies of the two static contacts and extend in a direction away from the contact support.

9. The relay with auxiliary contacts according to claim 7, characterized in that: The moving contact bridge and the static contact assembly are respectively provided in plurality, and the plurality of moving contact bridges are arranged at intervals along the length direction of the contact support, the plurality of static contact assemblies correspond one-to-one to the plurality of moving contact bridges, and the plurality of static contact assemblies are separated on both sides of the auxiliary contact assembly in the length direction of the contact support.

10. The relay with auxiliary contacts according to claim 7, characterized in that: It also includes a base, in which the contact support is movably arranged, and a reset spring is arranged between the two; the static contact and auxiliary contact assembly are respectively inserted into the base; it also includes a magnetic circuit part located above the main contact assembly, which has a moving iron core, which is connected to a push rod, and the contact support is pushed by the push rod, so that the moving contacts at both ends of the moving contact bridge are respectively closed or disconnected with the static contacts on the two static contacts.

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