Auxiliary contact structure and contactor

Abstract

The invention provides an auxiliary contact structure and a contactor, and relates to the technical field of low-voltage electrical appliances, the auxiliary contact structure comprises a rotating member and a plurality of contact points, the rotating member is used for being connected with a moving contact of the contactor, the moving contact is connected with a first loop or a second loop, and the rotating member rotates along with the moving contact and is connected with the first loop or the second loop. The rotating part has a first state corresponding to the connection between the moving contact and the first loop and a second state corresponding to the connection between the moving contact and the second loop, the rotating part comprises a rotating contact part, and the rotating contact part is connected with the corresponding contact point to transmit a rotating in-place signal when rotating from the first state to the second state. According to the auxiliary contact structure and the contactor provided by the invention, whether rotation between different loops is in place can be detected, and the stability of the contactor is improved.

Description

Technical Field

[0001] This application relates to the technical field of low-voltage electrical appliances, and more specifically, to an auxiliary contact structure and a contactor. Background Art

[0002] A contactor is a device that can quickly cut off the AC and DC main circuits and can frequently connect and disconnect high-current control circuits. It is often used to control motors and can also be used to control electrical loads such as factory equipment, electric heaters, machine tools, and various power units. The contactor can not only connect and disconnect the circuit but also has a low-voltage release protection function. The contactor consists of an electromagnetic system (moving iron core, static iron core, electromagnetic coil), a contact system, and an arc extinguishing device. When the electromagnetic coil of the contactor is energized, a magnetic field is generated, causing the static iron core to generate electromagnetic attraction to attract the moving iron core and drive the contacts to move, and the contact system closes; when the coil is de-energized, the electromagnetic attraction disappears, and the moving iron core is released under the action of the release spring, and the contact system returns to its original state, and the contact system disconnects. In order to achieve multi-loop control in a smaller volume, the contactor is set as "single-pole double-throw". Specifically, the electromagnetic system controls the rotation and linear movement of the moving contact, which is connected to the first static contact or the second static contact to achieve the separate connection of multiple loops.

[0003] In order to conveniently and timely obtain the state of the moving contact assembly and the static contact, an auxiliary contact connected to the moving contact and an auxiliary lead-out terminal connected to the auxiliary contact are usually provided. When the moving contact assembly contacts one of the static contacts, the auxiliary contact is closed to output the connection signal of the first loop; when the moving contact assembly separates from the other static contact, the auxiliary contact is closed to output the connection signal of the second loop. In the prior art, the auxiliary contact can only detect whether the linear movement is in place and cannot detect whether the rotation between different loops is in place. Summary of the Invention

[0004] The purpose of this application is to provide an auxiliary contact structure and a contactor that can detect whether the rotation between different loops is in place and improve the stability of the contactor for the deficiencies in the above-mentioned prior art.

[0005] To achieve the above purpose, the technical solutions adopted in the embodiments of this application are as follows:

[0006] On the one hand, an embodiment of this application provides an auxiliary contact structure, including a rotating member and a plurality of contact points. The rotating member is used to connect to the moving contact of the contactor. The moving contact connects the first loop or the second loop. During the rotation of the rotating member along with the moving contact, it has a first state corresponding to the moving contact connecting the first loop and a second state corresponding to the moving contact connecting the second loop. The rotating member includes a rotating contact member, and the rotating contact member is connected to the corresponding contact point when rotating from the first state to the second state to transmit the signal that the rotation is in place.

[0007] As an implementable manner, the rotating member further includes a linear contact member, and the linear contact member contacts the corresponding contact points in the first state and the second state to transmit linear motion information.

[0008] As an implementable manner, the rotating contact member includes two rotating contact points, and the two rotating contact points are arranged on a straight line passing through the rotation center and are respectively located on both sides of the rotation center.

[0009] As an implementable manner, the linear contact member includes two linear contact points, the connecting lines of the two rotating contact points and the rotation center have a preset included angle, and one of the linear contact points and one of the rotating contact points are located on the same radial line.

[0010] As an implementable manner, the rotating contact member and the linear contact member are arranged in a direction perpendicular to the rotation plane, and the rotating contact member is close to the contact point.

[0011] As an implementable manner, the rotating contact member is a rotating reed perpendicular to the rotation plane, the rotating contact points are arranged on the side surface of the rotating reed, the contact point contacts the side surface of the rotating reed, the linear contact member is a linear reed parallel to the rotation plane, the linear contact points are arranged on the top surface of the linear reed, and the contact point contacts the top surface of the linear reed.

[0012] As an implementable manner, the contact points include four arranged along the circumference of the rotation center, two rotating contact points contact two spaced contact points, and two linear contact points contact two adjacent contact points.

[0013] As an implementable manner, the two rotating contact points are arranged at both ends of the rotating reed, and the distances between the two rotating contact points and the rotation center are both a, the two linear contact points are arranged at both ends of the linear reed, and the distances between the two linear contact points and the rotation center are both b, and a < b.

[0014] As an implementable manner, the rotating member and the moving contact are connected by an insulating member. One side of the insulating member is connected to the moving contact, and the other side of the insulating member extends outwards in a direction away from the moving contact to form an enclosed space, and the rotating member is arranged in the enclosed space.

[0015] As an implementable manner, each contact point is provided with a connecting member facing the rotating member.

[0016] On the other hand, an embodiment of the present application provides a contactor, including a moving contact, two sets of static contacts arranged at intervals from the moving contact, and the above-mentioned auxiliary contact structure connected to the moving contact, and the moving contact is driven to contact one of the two sets of static contacts.

[0017] The beneficial effects of the present application include:

[0018] The present application provides an auxiliary contact structure, which is applied to a single-pole double-throw contactor. The contactor includes a moving contact and two sets of static contacts. The moving contact is driven to rotate and move linearly, and contacts the two sets of static contacts respectively. When the moving contact contacts one set of static contacts, the first circuit is turned on; when the moving contact contacts the other set of static contacts, the second circuit is turned on. The auxiliary contact structure is used to obtain the position of the moving contact. Specifically, the auxiliary contact structure includes a rotating member and a plurality of contact points. The rotating member is connected to the moving contact of the contactor. During the rotation of the rotating member along with the moving contact, it has a first state corresponding to the moving contact turning on the first circuit and a second state corresponding to the moving contact turning on the second circuit. The rotating member includes a rotating contact member. When the rotating contact member rotates from the first state to the second state, it connects to the corresponding contact point to transmit the rotation-in-place signal to the circuit board, so that the auxiliary contact structure of the embodiment of the present application can detect whether the rotation is in place, thereby improving the stability of the contactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 FIG. 1 is one of the schematic structural diagrams of an auxiliary contact structure provided by an embodiment of the present application;

[0021] Figure 2 FIG. 2 is another schematic structural diagram of an auxiliary contact structure provided by an embodiment of the present application;

[0022] Figure 3 FIG. 3 is still another schematic structural diagram of an auxiliary contact structure provided by an embodiment of the present application;

[0023] Figure 4 FIG. 4 is one of the state diagrams of an auxiliary contact structure provided by an embodiment of the present application;

[0024] Figure 5 FIG. 5 is another state diagram of an auxiliary contact structure provided by an embodiment of the present application;

[0025] Figure 6 FIG. 6 is one of the schematic structural diagrams of a rotating member provided by an embodiment of the present application;

[0026] Figure 7 FIG. 7 is another schematic structural diagram of a rotating member provided by an embodiment of the present application;

[0027] Figure 8 FIG. 8 is the state diagram of a rotating member in the first state provided by an embodiment of the present application;

[0028] Figure 9 A state diagram of a rotating member in a second state provided by an embodiment of the present application;

[0029] Figure 10 A schematic structural diagram of a rotating contact member provided by an embodiment of the present application;

[0030] Figure 11 A schematic structural diagram of a linear contact member provided by an embodiment of the present application;

[0031] Figure 12 A rotation path diagram of a rotating member provided by an embodiment of the present application.

[0032] Icon: 100 - Auxiliary contact structure; 110 - Rotating member; 111 - Rotating contact member; 112 - Linear contact member; 113 - Rotating contact point; 114 - Linear contact point; 120 - Circuit board; 121 - Contact point; 122 - Connecting member; 130 - Insulating member; 210 - Moving contact; 220 - Static contact. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. It should be noted that, without conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the protection scope of the present application.

[0035] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0037] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] On one hand of the embodiments of the present application, as Figure 1 , Figure 2 and Figure 3 shown, a auxiliary contact structure 100 is provided, which includes a rotating member 110 and a plurality of contact points 121. The rotating member 110 is used to connect with the moving contact 210 of the contactor. The moving contact 210 connects the first circuit or the second circuit. During the process of the rotating member 110 rotating along with the moving contact 210, it has a first state corresponding to the moving contact 210 connecting the first circuit and a second state corresponding to the moving contact 210 connecting the second circuit. The rotating member 110 includes a rotating contact member 111. The rotating contact member 111 is connected to the corresponding contact point 121 in the second state to transmit the signal of rotating in place.

[0039] The auxiliary contact structure 100 of the embodiments of the present application is applied to a single-pole double-throw contactor. As Figure 1 shown, it includes a moving contact 210 and two groups of static contacts 220. The moving contact 210 is driven to move linearly in the vertical direction and rotate in the horizontal plane. Specifically, the moving contact 210 is driven to move axially upward to contact with one of the groups of static contacts 220 to realize the connection of the first circuit. At this time, the moving contact 210 and the rotating member 110 are in the first state; the moving contact 210 is driven to move axially downward to disengage from one of the groups of static contacts 220, and then the moving contact 210 is driven to rotate to a position corresponding to the other pair of static contacts 220 and then move axially upward to contact with the other group of static contacts 220 to realize the connection of the second circuit. At this time, the moving contact 210 and the rotating member 110 are in the second state.

[0040] In the embodiment of the present application, the rotating member 110 is fixedly connected to the moving contact 210 and moves together with the moving contact 210. When the moving contact 210 is driven to move linearly and contacts a set of static contacts 220, the rotating member 110 is in the first state, as Figure 5 and Figure 9 shown. The linear moving contact member 112 contacts two of the contact points to realize the transmission of the signal for the completion of the linear closing in the first state; when the moving contact 210 rotates to a position corresponding to another set of static contacts 220, the rotating member 110 rotates to the second state along with the moving contact 210, as Figure 4 and Figure 8 shown. At this time, the rotating contact member 111 contacts the corresponding contact point 121 to transmit the signal that the rotation is in place. At this time, the moving contact 210 is controlled to move axially upward to contact another set of static contacts 220; when the moving contact 210 does not rotate in place, the signal that the rotation is in place cannot be transmitted. Specifically, in order to facilitate the control of the movement of the moving contact, a circuit board 120 can be arranged in the auxiliary contact structure, as Figure 3 shown. The contact points in contact with the rotating contact member are connected to the circuit board 120. When the moving contact does not rotate in place, the circuit board 120 does not receive the signal that the rotation is in place, then the circuit board 120 controls the moving contact 210 not to move linearly to contact another set of static contacts 220. Therefore, the auxiliary contact structure 100 of the embodiment of the present application can detect whether the rotation between different circuits is switched in place, avoiding the linear movement of the moving contact to contact another set of static contacts when the moving contact does not rotate in place, thereby improving the stability of the contactor.

[0041] Among them, the linear moving contact member 112 and the rotating contact member 111 in the rotating member 110 can be separate components such as Figure 7 , Figure 10 , Figure 11 , or can be an integrally formed component as Figure 6 shown. When the linear moving contact member 112 and the rotating contact member 111 are two components, the two components are fixedly connected and rotate simultaneously along with the rotation of the moving contact 210.

[0042] The present application provides an auxiliary contact structure 100, which is applied to a single-pole double-throw contactor. The contactor includes a moving contact 210 and two sets of static contacts 220. The moving contact 210 is driven to rotate and move linearly, and respectively contacts with the two sets of static contacts 220. When the moving contact 210 contacts with one set of static contacts 220, the first circuit is switched on; when the moving contact 210 contacts with the other set of static contacts 220, the second circuit is switched on. The auxiliary contact structure 100 is used to obtain the position of the moving contact 210. Specifically, the auxiliary contact structure 100 includes a rotating member 110 and a plurality of contact points. The rotating member 110 is connected to the moving contact 210 of the contactor. During the rotation of the rotating member 110 along with the moving contact 210, it has a first state corresponding to the moving contact 210 switching on the first circuit and a second state corresponding to the moving contact 210 switching on the second circuit. The rotating member 110 includes a rotating contact member 111. When the rotating contact member 111 rotates from the first state to the second state, it is connected to the corresponding contact point 121 to transmit the rotation-in-place signal to the circuit board 120, so that the auxiliary contact mechanism of the embodiment of the present application can detect whether the rotation is in place, thereby improving the stability of the contactor.

[0043] As an implementable manner, as Figure 4 , Figure 5 and Figure 6 shown, the rotating member 110 further includes a linear moving contact member 112. The linear moving contact member 112 contacts with the corresponding contact point 121 in the first state and the second state to transmit the linear moving information.

[0044] Specifically, the linear moving contact member 112 contacts with the corresponding contact points respectively in the two states to realize the transmission of the linear moving signal. Among them, the linear moving signal is transmitted after the linear movement of the moving contact, that is, a linear moving signal is transmitted for the closing of the contactor. In order to facilitate the client to obtain the closing state of the contactor, the contact points contacted by the linear moving contact member in the two states are connected to the client, as Figure 3 shown.

[0045] It can be understood that, in order to make more reasonable use of the internal space of the auxiliary contact structure 100, the circuit board 120 can be arranged on the side of the structure. A connecting member 122 is fixedly arranged at the position of the contact point 121. The connecting member 122 is connected to the circuit board 120 or the client, as Figure 3 shown. In addition, in order to realize arc extinguishing when the moving contact 210 is separated from the static contact 220, the contactor is also provided with an arc extinguishing cover. The connecting member 122 can be fixedly arranged on the arc extinguishing cover, as Figure 3 shown.

[0046] Optionally, as Figure 6 , Figure 7 and Figure 10As shown, the rotating contact 111 includes two rotating contacts 113. The two rotating contacts 113 are arranged on a straight line passing through the rotation center and are located on both sides of the rotation center respectively.

[0047] In the second state, the rotating contact 111 contacts the contact point 121 to realize the transmission of the signal indicating the rotation in place. The rotating contact 111 is provided with two rotating contacts 113, and the two rotating contacts 113 contact the corresponding two opposite contact points 121, and the circuit is turned on to realize the transmission of the signal.

[0048] In an implementable manner of the embodiment of the present application, as Figure 6 , Figure 7 and Figure 11 shown, the linear contact 112 includes two linear contacts 114. The connecting lines of the two rotating contacts 113 and the rotation center have a preset included angle, and one of the linear contacts 114 and one of the rotating contacts 113 are located on the same radial direction.

[0049] As can be seen from the above, when the rotating member 110 is in the first state and the second state, the transmission of the linear motion signal is required. The two linear contacts 114 contact the adjacent two contact points 121 to realize the transmission of the electrical signal. In the embodiment of the present application, the connecting lines of the two rotating contacts 113 and the rotation center are set to have a preset included angle. During the rotation of the linear contact 112, two of the linear contacts 114 contact the adjacent two contact points, which can ensure that there is always one of the two linear contacts contacting a certain contact point 121. In this way, fewer contact points 121 can be set to realize the transmission of the two signals.

[0050] Among them, the specific angle of the preset included angle is not limited in the embodiment of the present application, as long as it can make the linear contact 112 contact two of the contact points 121. By way of example, as Figure 11 shown, the included angle between the connecting lines of the two rotating contacts 113 and the rotation center is 90°.

[0051] Optionally, as Figure 6 and Figure 7 shown, the rotating contact 111 and the linear contact 112 are arranged along the direction perpendicular to the rotation plane, and the rotating contact 111 is close to the contact point 121.

[0052] In an implementable manner of the embodiment of the present application, as Figure 6 and Figure 7 shown, the rotating contact 111 is a rotating reed perpendicular to the rotation plane, the rotating contact 113 is arranged on the side surface of the rotating reed, the contact point 121 contacts the side surface of the rotating reed, the linear contact 112 is a linear reed parallel to the rotation plane, the linear contact 114 is arranged on the top surface of the linear reed, and the contact point 121 contacts the top surface of the linear reed.

[0053] Optionally, as Figure 1 , Figure 4 and Figure 5 shown, the contact points 121 include four arranged circumferentially along the rotation center. Two rotary contact points 113 are in contact with two spaced-apart contact points 121, and two linear contact points 114 are in contact with two adjacent contact points 121.

[0054] When the linear contact member 112 and the rotary contact member 111 are arranged in a direction perpendicular to the rotation plane, the two rotary contact points 113 on the rotary contact member 111 are located on a straight line passing through the rotation center. Two contact points 121 need to be provided. In the first state, the two linear contact points 114 are not in contact with the contact points 121. When rotating from the first state to the second state, the two rotary contact points 113 are in contact with the contact points 121 relatively arranged on both sides of the rotation center, realizing the transmission of the rotation-in-place signal. The linear contact points 114 are in contact with two adjacent contact points and are in contact with one of the two contact points 121 respectively in the two states, realizing the transmission of the linear motion signal.

[0055] In an implementable manner of the embodiment of the present application, as Figure 8 , Figure 9 and Figure 12 shown, the two rotary contact points 113 are arranged at both ends of the rotary reed, and the distances between the two rotary contact points 113 and the rotation center are both a. The two linear contact points 114 are arranged at both ends of the linear reed, and the distances between the two linear contact points 114 and the rotation center are both b, and a < b.

[0056] As can be seen from the foregoing, the linear contact point 114 is in contact with the end face of the contact point 121, and the rotary contact point 113 is in contact with the side face of the contact point 121. Among them, the rotary contact member 111 is a reed perpendicular to the rotation plane. In order to avoid the position interference between the rotary contact member 111 and the contact point 121 during the process of the rotating member 110 rotating from the first state to the second state, the rotary contact points 113 are arranged at both ends of the rotary reed, and the distance between the rotary contact points 113 and the rotation center is less than the distance between the linear contact points 114 and the rotation center. In this way, during the rotation of the rotating member 110, it is possible to avoid damage to the rotary contact member 111 caused by friction between the rotary contact member 111 and the contact point 121.

[0057] Optionally, as Figure 1 , Figure 4 and Figure 5 shown, the rotating member 110 and the moving contact 210 are connected through an insulating member 130. One side of the insulating member 130 is connected to the moving contact 210, and the other side of the insulating member 130 extends outwards in a direction away from the moving contact 210 to form an enclosing space, and the rotating member 110 is arranged in the enclosing space.

[0058] The rotating member 110 and the moving contact 210 are connected through the insulating member 130. The rotating contact 113 and the direct moving contact 114 on the rotating member 110 contact the contact point 121 to realize the transmission of the electric signal, which is weak electricity. The moving contact 210 and the first static contact 220 group or the second static contact 220 group contact to realize the circuit connection, which is strong electricity. In addition, when the moving contact 210 is separated from the first static contact 220 or the second static contact 220, an arc will be generated. The arc is a high-temperature charged gas, which will also affect the weak electricity on the rotating member 110. In order to prevent strong electricity from affecting weak electricity on the rotating part 110, the embodiment of the present application connects the rotating part 110 and the moving contact 210 through an insulating part 130, and the other side of the insulating part 130 extends outwardly from the square away from the moving contact 210 to form an enclosed space, and the rotating part 110 is arranged in the enclosed space. In this way, the rotating part 110 is located in a relatively isolated space, and the insulating part 130 has insulating properties, thereby preventing the strong electricity on the moving contact 210 and the influence of the arc on the electrical signal.

[0059] Specifically, the material of the insulating member 130 and the location of the outer edge are not limited in the embodiment of the present application, and those skilled in the art can set them according to actual conditions, as long as they can isolate the moving contact 210 from the rotating member 110. The height of the outer edge can extend to contact the inner side surface of the top of the arc extinguishing chamber of the contactor to form a closed space with the top wall of the arc extinguishing chamber.

[0060] In one possible implementation of the embodiment of the present application, Figure 1 As shown, each contact point 121 is provided with a connecting member 122 facing the rotating member 110 .

[0061] like Figure 1 As shown, each contact point 121 is provided with a connecting member 122 toward the rotating member 110, and the connecting member 122 has a certain length in the direction away from the vertical. In this way, when the direct-acting contact member 112 and the rotating contact member 111 rotate, the rotating contact 113 contacts the side wall of the connecting member 122, and the direct-acting contact 114 contacts the end of the contact member. In this way, the contact area between the rotating contact 113 and the connecting member 122 can be increased, and the contact stability between the direct-acting contact 114 and the connecting member 122 can be improved, thereby realizing stable signal transmission.

[0062] Specifically, the structure of the connector 122 is not limited in the present embodiment, as long as it can lead out the contact point 121. For example, Figure 1 The elastic probe shown can also be extended or retracted according to actual conditions to achieve stable contact.

[0063] The embodiment of the present application also discloses a contactor, which includes a moving contact 210, two sets of static contacts 220 arranged at intervals with the moving contact 210, and the auxiliary contact structure 100 of any one of the above, which is connected to the moving contact 210. The moving contact 210 is driven to contact one of the two sets of static contacts 220. This contactor includes the same structure and beneficial effects as the auxiliary contact structure 100 in the foregoing embodiment. The structure and beneficial effects of the auxiliary contact structure 100 have been described in detail in the foregoing embodiment and will not be elaborated herein.

[0064] The foregoing is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary contact structure, characterized in that, It includes a rotating member (110) and a plurality of contact points (121). The rotating member (110) is used to connect with the moving contact (210) of the contactor. The moving contact (210) connects the first circuit or the second circuit. During the rotation of the rotating member (110) along with the moving contact (210), it has a first state corresponding to the moving contact (210) connecting the first circuit and a second state corresponding to the moving contact (210) connecting the second circuit. The rotating member (110) includes a rotating contact member (111). When the rotating contact member (111) rotates from the first state to the second state, it connects with the corresponding contact point (121) to transmit a signal indicating that the rotation is in place.

2. The auxiliary contact structure according to claim 1, characterized in that, The rotating member (110) further includes a linear motion contact member (112). The linear motion contact member (112) contacts the corresponding contact point (121) in the first state and the second state to transmit linear motion information.

3. The auxiliary contact structure according to claim 2, characterized in that, The rotating contact member (111) includes two rotating contact points (113). The two rotating contact points (113) are arranged on a straight line passing through the rotation center and are located on both sides of the rotation center respectively. The linear motion contact member (112) includes two linear motion contact points (114). The lines connecting the two rotating contact points (113) and the rotation center have a preset included angle, and one of the linear motion contact points (114) and one of the rotating contact points (113) are located on the same radial direction.

4. The auxiliary contact structure according to claim 3, characterized in that, The rotating contact member (111) and the linear motion contact member (112) are arranged along a direction perpendicular to the rotation plane, and the rotating contact member (111) is close to the contact point (121).

5. The auxiliary contact structure according to claim 4, characterized in that, The rotating contact member (111) is a rotating spring piece perpendicular to the rotation plane. The rotating contact points (113) are arranged on the side surface of the rotating spring piece. The contact point (121) contacts the side surface of the rotating spring piece. The linear motion contact member (112) is a linear motion spring piece parallel to the rotation plane. The linear motion contact points (114) are arranged on the top surface of the linear motion spring piece. The contact point (121) contacts the top surface of the linear motion spring piece.

6. The auxiliary contact structure according to claim 5, characterized in that, The contact points (121) include four arranged circumferentially along the rotation center. Two of the rotating contact points (113) contact two spaced contact points (121), and two of the linear motion contact points (114) contact two adjacent contact points (121).

7. The auxiliary contact structure according to claim 5, characterized in that, The two rotating contact points (113) are arranged at both ends of the rotating spring piece, and the distances between the two rotating contact points (113) and the rotation center are both a. The two linear motion contact points (114) are arranged at both ends of the linear motion spring piece, and the distances between the two linear motion contact points (114) and the rotation center are both b, and a < b.

8. The auxiliary contact structure according to claim 1, characterized in that, The rotating member (110) and the moving contact (210) are connected through an insulating member (130). One side of the insulating member (130) is connected to the moving contact (210). The other side of the insulating member (130) extends outwards along a direction away from the moving contact (210) to form an enclosing space, and the rotating member (110) is arranged in the enclosing space.

9. The auxiliary contact structure according to claim 5, characterized in that, Each contact point (121) is provided with a connecting member (122) facing the rotating member (110).

10. A contactor, characterized in that, It includes a moving contact (210), two sets of static contacts (220) arranged at intervals from the moving contact (210), and an auxiliary contact structure (100) as described in any one of claims 1 to 9 and connected to the moving contact (210), and the moving contact (210) is driven to contact one of the two sets of static contacts (220).

Images