Contact assembly and relay

Abstract

The utility model provides a contact assembly and a relay, and relates to the technical field of electrical equipment. The contact assembly comprises a base, a static contact, a moving contact and an elastic piece. Wherein the static contact is fixed on the base. The moving contact is rotatably connected to the base. The elastic piece comprises a first torsion arm and a second torsion arm, the first torsion arm is connected to the moving contact, the second torsion arm is connected to the base, and the elastic piece is used for driving the moving contact to rotate relative to the base so that the moving contact can make contact with the static contact. In the contact assembly provided by the invention, the moving contact is installed on the base through the elastic piece, and the elastic piece is reliable in elastic force and relatively strong in energy storage and release capability, so that the moving contact is relatively reliable in action. On the basis, the influence of the state of the moving contact on the contact of the moving contact and the static contact can be reduced, and the possibility that the moving contact needs to be adjusted again after being installed can be further reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and particularly relates to a contact assembly and a relay. Background Art

[0002] A relay is one of the commonly used accessories in various intelligent control systems. It can control the on / off of a circuit according to the magnitudes of parameters such as temperature, current, voltage, and pressure to protect the circuit.

[0003] A relay generally includes a moving contact and a static contact, and can control the on / off of the circuit through the contact state between the moving contact and the static contact.

[0004] However, in the related art, the setting method of the moving contact is not reasonable enough, so that it is necessary to adjust the moving contact again after it is installed in the relay before it can be used. Summary of the Utility Model

[0005] The present application provides a contact assembly and a relay, which can facilitate the installation of the moving contact and reduce the possibility of further adjustment after the moving contact is installed.

[0006] In a first aspect, the present application provides a contact assembly applied to a relay, including a base, a static contact, a moving contact, and an elastic member. Among them, the static contact is fixed to the base. The moving contact is rotatably connected to the base. The elastic member includes a first torsion arm and a second torsion arm. The first torsion arm is connected to the moving contact, and the second torsion arm is connected to the base. The elastic member is used to drive the moving contact to rotate relative to the base so that the moving contact contacts the static contact.

[0007] In the present application, the moving contact is installed on the base through the elastic member and contacts the static contact. As a component that works using its own elasticity, the elastic member has reliable elasticity and strong energy storage and release capabilities, which can make the movement of the moving contact more reliable.

[0008] Based on this, the influence of the state of the moving contact itself on the contact between the moving contact and the static contact can be reduced, and further, the possibility of further adjustment after the installation of the moving contact is completed before it can be used can be reduced.

[0009] Optionally, a contact terminal is provided on the base, the elastic member is a conductive member, and the second torsion arm is electrically connected to the contact terminal.

[0010] In this way, the contact terminal can be electrically connected to the moving contact through the elastic member. When the moving contact contacts the static contact, the contact terminal can transmit an electrical signal to the moving contact through the elastic member to realize the connection between the moving contact and the static contact.

[0011] Optionally, contact terminals are provided on the base. The elastic member is non-conductive. An installation member is provided on the base, and the second torsion arm is connected to the installation member. The contact assembly further includes a conductor, and a conductor is connected between the moving contact and the contact terminal.

[0012] In this way, the contact terminal can be electrically connected to the moving contact through the conductor. When the moving contact contacts the static contact, the contact terminal can transmit the electrical signal to the moving contact through the conductor, realizing the connection between the moving contact and the static contact.

[0013] Optionally, the moving contact includes a normally open contact and a normally closed contact connected to each other. The static contact includes a normally closed static contact and a normally open static contact arranged at intervals. Both the normally open contact and the normally closed contact are located between the normally open static contact and the normally closed static contact. The normally closed contact faces the normally closed static contact, and the normally open contact faces the normally open static contact.

[0014] An elastic member is provided between the normally closed contact and the base, and / or an elastic member is provided between the normally open contact and the base. The elastic member is used to drive the normally closed contact and the normally open contact to rotate, so that the normally closed contact contacts the normally closed static contact and the normally open contact separates from the normally open static contact.

[0015] Through the above solution, the normally closed contact can cooperate with the normally closed static contact, and the normally open contact can cooperate with the normally open static contact.

[0016] Under normal circumstances, the normally closed contact can rotate towards the direction close to the normally closed static contact under the action of the elastic member and maintain reliable contact with the normally closed static contact. The normally open contact can rotate away from the normally open static contact under the action of the elastic member and maintain separation from the normally open static contact.

[0017] Optionally, a mounting shaft is fixedly provided on the base. At least one of the normally closed contact and the normally open contact passes through the mounting shaft, and both the normally closed contact and the normally open contact can rotate relative to the mounting shaft.

[0018] A partition is further provided on the mounting shaft. The partition is located between the normally closed contact and the normally open contact to isolate the normally closed contact and the normally open contact.

[0019] In this way, the partition can separate the normally closed contact and the normally open contact, realizing the insulation between the normally closed contact and the normally open contact.

[0020] Optionally, the normally closed contact has opposite first and second ends. The second end is closer to the normally closed static contact than the first end. The normally open contact has opposite third and fourth ends. The fourth end is closer to the normally open static contact than the third end.

[0021] Both the first end and the third end are rotatably connected to the base. A linkage member is connected between the second end and the fourth end. The linkage member is used to make the normally closed contact and the normally open contact rotate synchronously.

[0022] In this way, the linkage can realize the connection between the normally closed contact and the normally open contact, so that the normally closed contact and the normally open contact can rotate synchronously.

[0023] Optionally, the contact assembly further includes an emergency stop assembly, which is slidably mounted on the base. In the sliding direction of the emergency stop assembly, the emergency stop assembly has a driving end located between the normally closed static contact and the normally open static contact.

[0024] When the normally closed contact is in contact with the normally closed static contact, the driving end is opposite to the linkage. The emergency stop assembly can slide towards the linkage, so that the driving end drives the normally closed contact to rotate through the linkage, causing the normally closed contact to separate from the normally closed static contact.

[0025] In this way, when the emergency stop assembly slides relative to the base, the driving end can also slide accordingly, and then can push the normally closed contact and the normally open contact to rotate through the linkage, so that the normally closed contact separates from the normally closed static contact and the circuit is disconnected.

[0026] Optionally, the side of the driving end facing the linkage is inclined.

[0027] In this way, when the driving end slides, the side of the driving end facing the linkage can guide the movement of the linkage, so that the linkage drives the normally closed contact and the normally open contact to rotate.

[0028] Optionally, the contact assembly further includes a guide plate, which is mounted on the base and can slide along the arrangement direction of the normally closed static contact and the normally open static contact, so that the guide plate switches between a first position and a second position. The normally closed contact and / or the normally open contact is / are opposite to the guide plate.

[0029] When the guide plate is in the first position, the elastic member is in the first compressed state, the normally closed contact is in contact with the normally closed static contact, and the normally open contact is separated from the normally open static contact. During the process of the guide plate switching from the first position to the second position, the guide plate can push against the elastic member, so that the elastic member is in the second compressed state, the normally closed contact is separated from the normally closed static contact, and the normally open contact is in contact with the normally open static contact.

[0030] Wherein, the compression amount of the elastic member in the second compressed state is greater than the compression amount of the elastic member in the first compressed state.

[0031] Through the above settings, when the relay needs to disconnect the circuit for protection due to overload or other reasons, the guide plate can be operated to slide, so that the guide plate can switch from the first position to the second position, and drive the normally closed contact and the normally open contact to rotate, causing the normally closed contact to separate from the normally closed static contact and the normally open contact to contact the normally open static contact.

[0032] In a second aspect, the present application provides a relay, including any one of the contact assemblies in the first aspect above.

[0033] For the relay provided in the second aspect above and each possible design of the second aspect, the beneficial effects can be referred to the beneficial effects brought by the first aspect above and each possible implementation manner of the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 FIG. 6 is one of the schematic diagrams of a contact component according to an embodiment of the present application.

[0035] Figure 2 is Figure 1 the front view of the shown contact component.

[0036] Figure 3 FIG. 16 is the structural diagram of a contact component in the related art.

[0037] Figure 4 FIG. 20 is another schematic diagram of a contact component according to an embodiment of the present application.

[0038] Figure 5 is Figure 4 the front view of the shown contact component.

[0039] Figure 6 FIG. 30 is another schematic diagram of a contact component according to an embodiment of the present application.

[0040] Figure 7 FIG. 34 is another schematic diagram of a contact component according to an embodiment of the present application.

[0041] DESCRIPTION OF REFERENCE NUMERALS:

[0042] Related art: 200: thin copper sheet; 300: static contact.

[0043] This application: 100: contact component; 10: base; 20: static contact; 30: moving contact; 40: elastic member; 41: first torsion arm; 42: second torsion arm; 11: mounting member; 50: conductor; 31: normally closed contact; 32: normally open contact; 21: normally closed static contact; 22: normally open static contact; 12: mounting shaft; 13: partition; 33: linkage member; 60: emergency stop component; 61: driving end; 62: operating end; 70: guide plate; 80: contact terminal; 81: normally closed contact terminal; 82: normally open contact terminal; X: first direction; Y: second direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description and claims of this application and the drawings are intended to cover non-exclusive inclusion.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase "embodiments" appearing in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0047] The term "and / or" herein is merely a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: the existence of A, the simultaneous existence of A and B, and the existence of B. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0048] The orientation terms appearing in the following description are all the directions shown in the figures and do not limit the specific structure of the current-limiting module of this application. For example, in the description of this application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this 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 understood as a limitation of this application.

[0049] In addition, terms such as "first" and "second" in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0050] In the description of the present application, unless otherwise specified, the meaning of "a plurality" refers to two or more (including two). Similarly, "a plurality of groups" refers to two or more groups (including two groups).

[0051] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, the "connection" or "coupling" of a mechanical structure may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a spacer, such as a fixed connection through screws, bolts, or other spacers; a physical connection may also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection may also be an integral connection, such as a connection formed by welding, bonding, or integral molding. 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.

[0052] Exemplarily, an embodiment of the present application provides a relay, and the relay includes a Figure 1 contact assembly 100 as shown.

[0053] In the relay equipped with the above-mentioned contact assembly 100, the contact assembly 100 can act to connect or disconnect the circuit, so as to achieve the protection effect of the relay on the circuit.

[0054] The contact assembly 100 proposed by the present application can be applied to different types of relays. For different types of relays, different components can be used to control the action of the contact assembly 100, and specific adaptations can be made according to the type of the relay.

[0055] For example, in a thermal relay, the relay can control the action of the contact assembly 100 according to temperature. Specifically, the deformation degree of the bimetal in the thermal relay at different temperatures can be used to control the contact assembly 100 to be in different states. In a current relay, the relay can control the action of the contact assembly 100 according to current, and so on.

[0056] Hereinafter, the contact assembly 100 provided by the embodiments of the present application will be introduced in detail with reference to the accompanying drawings.

[0057] Referring to Figure 1 and Figure 2As shown in the figure, the present application provides a contact assembly 100, which includes a base 10, a stationary contact 20, a moving contact 30, and an elastic member 40. The stationary contact 20 is fixed to the base 10. The moving contact 30 is rotatably connected to the base 10. The elastic member 40 includes a first torsion arm 41 and a second torsion arm 42. The first torsion arm 41 is connected to the moving contact 30, and the second torsion arm 42 is connected to the base 10. The elastic member 40 is used to drive the moving contact 30 to rotate relative to the base 10 so that the moving contact 30 contacts the stationary contact 20.

[0058] In an embodiment of the present application, the base 10 can provide a setting position for the stationary contact 20 and the moving contact 30. Since the moving contact 30 is rotatably connected to the base 10, the moving contact 30 can rotate relative to the base 10, so that the relative position between the moving contact 30 and the stationary contact 20 fixed on the base 10 changes, enabling the moving contact 30 to contact or separate from the stationary contact 20.

[0059] The contact assembly 100 further includes an elastic member 40. The elastic member 40 is connected between the moving contact 30 and the base 10 so that the elastic member 40 can provide a driving force for the rotation of the moving contact 30. In this way, the moving contact 30 can rotate under the action of the elastic member 40 and contact the stationary contact 20.

[0060] The elastic member 40 includes a first torsion arm 41 and a second torsion arm 42. When the elastic member 40 is stressed and the first torsion arm 41 and the second torsion arm 42 move away from each other, after the force applied to the elastic member 40 disappears, the first torsion arm 41 and the second torsion arm 42 can move closer to each other to return to their original state.

[0061] When the elastic member 40 is stressed and the first torsion arm 41 and the second torsion arm 42 move closer to each other, after the force applied to the elastic member 40 disappears, the first torsion arm 41 and the second torsion arm 42 can move away from each other to return to their original state.

[0062] In the present application, the first torsion arm 41 is connected to the moving contact 30, and the second torsion arm 42 is connected to the base 10. Therefore, when the first torsion arm 41 and the second torsion arm 42 move away from each other, the first torsion arm 41 can drive the moving contact 30 to rotate relative to the base 10.

[0063] That is, in the present application, the moving contact 30 is mounted on the base 10 through the elastic member 40, and the contact between the moving contact 30 and the stationary contact 20 is realized. As a component that utilizes its own elasticity to work, the elastic member 40 has reliable elasticity and strong energy storage and release capabilities, which can make the movement of the moving contact 30 more reliable.

[0064] In this way, during the installation of the moving contact 30, the elastic member 40 can be stressed so that the elastic member 40 is in a pre-twisted state. After the installation is completed, the elastic member 40 can provide a driving force for the moving contact 30 under its own elastic force.

[0065] Based on this, the influence of the state of the moving contact 30 itself on the contact between the moving contact 30 and the static contact 20 can be reduced, and further, the possibility of the problem that needs to be adjusted again after the installation of the moving contact 30 is completed can be reduced.

[0066] As Figure 3 shown, in the related art, the moving contact is formed by a thin copper sheet 200, and the thin copper sheet 200 is connected to the base by riveting. The thin copper sheet 200 has a certain elasticity. In a relay provided with such a moving contact, the moving contact contacts the static contact 300 by its own elastic force.

[0067] However, the elasticity of the thin copper sheet 200 is limited. During the riveting process of the thin copper sheet 200, the thin copper sheet 200 is prone to deformation, and thus it is difficult to fix the initial position of the thin copper sheet 200 after riveting. Therefore, after the riveting of the moving contact is completed, the position of the thin copper sheet 200 needs to be adjusted again, making the setting of the moving contact more cumbersome.

[0068] In the embodiment of the present application, the moving contact 30 contacts the static contact 20 by the drive of the elastic member 40. Therefore, the moving contact 30 itself can be non-elastic, thereby reducing the possibility that the moving contact 30 needs to be adjusted again due to deformation during the installation process, and simplifying the installation process of the moving contact 30.

[0069] In addition, since the elastic force of the moving contact made of the thin copper sheet 200 in the related art is limited, after long-term use, the thin copper sheet 200 may also cause the problem of poor contact between the moving contact and the static contact 20 due to deformation.

[0070] Compared with the related art, the elasticity of the elastic member 40 in the present application is stable, which makes the drive provided by the elastic member 40 to the moving contact 30 relatively stable. Therefore, the setting of the elastic member 40 can also reduce the possibility of the problem of poor contact between the moving contact 30 and the static contact 20 after long-term use of the contact assembly 100.

[0071] In addition, when installing the elastic member 40, it can be made such that when the moving contact 30 contacts the static contact 20, the elastic member 40 is still in a state of torsional deformation.

[0072] In this way, after the moving contact 30 contacts the static contact 20, since the elastic member 40 does not return to its original state, the elastic member 40 still has a tendency to return to its original state. At this time, the elastic member 40 applies a force to the moving contact 30, so that the moving contact 30 and the static contact 20 have a certain contact pressure, which can make the moving contact 30 and the static contact 20 be reliably connected.

[0073] It should be noted that the elastic member 40 can be a torsion spring. The torsion spring further includes a spring coil located between the first torsion arm 41 and the second torsion arm 42. The first torsion arm 41 and the second torsion arm 42 can rotate relative to the axis of the spring coil so that the first torsion arm 41 and the second torsion arm 42 move away from each other.

[0074] Alternatively, the elastic member 40 can also be a double torsion spring, which is formed by two juxtaposed torsion springs. The first torsion arm 41 can be the torsion arm where the two torsion springs move away from each other, and the second torsion arm 42 can be the part where the two torsion springs are connected. For the specific form of the elastic member 40, the embodiments of the present application do not make specific limitations here.

[0075] In the embodiments of the present application, a contact terminal 80 is provided on the base 10, and the contact terminal 80 is used to provide an electrical signal to the moving contact 30.

[0076] In the present application, the contact terminal 80 can provide an electrical signal to the moving contact 30 in different ways. Specifically, the following two ways are taken as examples for illustration.

[0077] Way 1, as Figure 2 shown, the elastic member 40 is a conductive member, and the second torsion arm 42 is electrically connected to the contact terminal 80.

[0078] In this way, the contact terminal 80 can be electrically connected to the moving contact 30 through the elastic member 40.

[0079] When the moving contact 30 contacts the static contact 20, the contact terminal 80 can transmit the electrical signal to the moving contact 30 through the elastic member 40, realizing the connection between the moving contact 30 and the static contact 20.

[0080] In this embodiment, the elastic member 40 can be used as a driving member to enable the moving contact 30 to rotate and contact the static contact 20. At the same time, the elastic member 40 can also be used as a conductor for electrical connection between the moving contact 30 and the contact terminal, providing an electrical signal to the moving contact 30.

[0081] Way 2, as Figure 4 and Figure 5 shown, the elastic member 40 is non-conductive, and a mounting member 11 is provided on the base 10. The second torsion arm 42 is connected to the mounting member 11. The contact assembly 100 further includes a conductor 50, and a conductor 50 is connected between the moving contact 30 and the contact terminal 80.

[0082] In this way, the contact terminal 80 can be electrically connected to the moving contact 30 through the conductor 50.

[0083] When the moving contact 30 contacts the static contact 20, the contact terminal 80 can transmit the electrical signal to the moving contact 30 through the conductor 50, realizing the connection between the moving contact 30 and the static contact 20.

[0084] At this time, the elastic member 40 has no electrical conductivity, and the elastic member 40 only acts as a driving member to drive the moving contact 30 to rotate. The electrical connection between the moving contact 30 and the contact terminal 80 is realized through the conductor 50.

[0085] In the embodiment of the present application, the second torsion arm 42 can be connected to the mounting member 11 on the base 10, so that the second torsion arm 42 is in a fixed state. Based on this, after the elastic member 40 is deformed, the first torsion arm 41 of the elastic member 40 can move away from the second torsion arm 42 under the action of its own elasticity, and drive the moving contact 30 to rotate.

[0086] It should be noted that the conductor 50 is any structure with electrical conductivity. In order to enable the conductor 50 to adapt to the rotation of the moving contact 30 and reduce the problem of damage to the conductor 50 caused by the rotation of the moving contact 30 pulling the conductor 50, the conductor 50 can also have flexibility. For example, the conductor 50 can be a wire, copper foil, aluminum foil, etc. The specific structure of the conductor 50 is not limited in the embodiment of the present application.

[0087] As Figure 1 and Figure 2 shown, the moving contact 30 can include a normally open contact 32 and a normally closed contact 31 that are connected to each other. The static contact 20 includes a normally closed static contact 21 and a normally open static contact 22 that are arranged at intervals. The normally closed contact 31 and the normally open contact 32 are located between the normally closed static contact 21 and the normally open static contact 22. And the normally closed contact 31 is opposite to the normally closed static contact 21, and the normally open contact 32 is opposite to the normally open static contact 22.

[0088] An elastic member 40 is provided between the normally closed contact 31 and the base 10, and / or an elastic member 40 is provided between the normally open contact 32 and the base 10. The elastic member 40 is used to drive the normally closed contact 31 and the normally open contact 32 to rotate, so that the normally closed contact 31 contacts the normally closed static contact 21, and the normally open contact 32 separates from the normally open static contact 22.

[0089] The moving contact 30 includes a normally open contact 32 and a normally closed contact 31. In the relay, the normally closed contact 31 and the normally open contact 32 can correspond to different static contacts 20.

[0090] Under normal circumstances, the normally closed contact 31 and the normally closed static contact 21 remain in contact, and the normally open contact 32 and the normally open static contact 31 are separated.

[0091] Specifically, the normally closed contact 31 can rotate towards the normally closed static contact 21 under the action of the elastic member 40 and maintain reliable contact with the normally closed static contact 21. The normally open contact 32 can rotate away from the normally open static contact 22 under the action of the elastic member 40 and remain separated from the normally open static contact 22.

[0092] In order to enable the normally closed contact 31 and the normally open contact 32 to cooperate with different static contacts 20, when the normally closed contact 31 and the normally open contact 32 are arranged between the normally closed static contact 21 and the normally open static contact 22, the normally closed contact 31 can be arranged facing the normally closed static contact 21, and the normally open contact 32 can be arranged facing the normally open static contact 22.

[0093] When the relay needs to disconnect the circuit for protection due to overload or other reasons, the normally closed contact 31 and the normally closed static contact 21 can be separated, and the normally open contact 32 and the normally open static contact 22 can be in contact.

[0094] It should be noted that there can also be multiple contact terminals 80, specifically including normally open contact terminals 82 and normally closed contact terminals 81, as Figure 1 and Figure 4 shown.

[0095] At this time, the normally closed contact 31 can be electrically connected to the normally closed contact terminal 81 so that the normally closed contact terminal 81 can provide an electrical signal for the normally closed contact. The normally open contact 32 can be electrically connected to the normally open contact terminal 82 so that the normally open contact terminal 82 can provide an electrical signal for the normally open contact.

[0096] In this application, both the normally closed static contact 21 and the normally open static contact 22 are fixed to the base 10, and both the normally closed contact 31 and the normally open contact 32 are rotatably connected to the base 10.

[0097] In this embodiment, in order to enable the elastic member 40 to drive the normally closed contact 31 and the normally open contact 32 to rotate, the elastic member 40 can have different setting methods, and the following three are specifically taken as examples for illustration.

[0098] Method (1), an elastic member 40 is arranged between the normally closed contact 31 and the base 10.

[0099] Through the above setting, the first torsion arm 41 of the elastic member 40 can be connected to the normally closed contact 31. In this way, when the first torsion arm 41 is far from the second torsion arm 42, it can drive the normally closed contact 31 to approach the normally closed static contact 21.

[0100] Since the normally closed contact 31 and the normally open contact 32 are connected to each other, when the elastic member 40 drives the normally closed contact 31 to rotate, the normally open contact 32 can also rotate along with the normally closed contact 31.

[0101] In this way, when the elastic member 40 acts under its own elastic force, the normally closed contact 31 and the normally open contact 32 can both rotate in the direction of approaching the normally closed static contact 21, so that the normally closed contact 31 contacts the normally closed static contact 21, and the normally open contact 32 separates from the normally open static contact 22.

[0102] Method (2), an elastic member 40 is arranged between the normally open contact 32 and the base 10.

[0103] With the above arrangement, the first torsion arm 41 of the elastic member 40 can be connected to the normally open contact 32. Thus, when the first torsion arm 41 moves away from the second torsion arm 42, it can drive the normally open contact 32 closer to the normally closed stationary contact 21.

[0104] Since the normally closed contact 31 and the normally open contact 32 are connected to each other, when the elastic member 40 drives the normally open contact 32 to rotate, the normally closed contact 31 can also rotate along with the normally open contact 32.

[0105] Thus, when the elastic member 40 acts under its own elastic force, the normally closed contact 31 and the normally open contact 32 can both rotate in the direction of approaching the normally closed stationary contact 21, so that the normally closed contact 31 contacts the normally closed stationary contact 21, and the normally open contact 32 separates from the normally open stationary contact 22.

[0106] Method (3), as Figure 1 shown, elastic members 40 are provided between the normally closed contact 31 and the base 10 and between the normally open contact 32 and the base 10.

[0107] The description of the elastic member 40 provided between the normally closed contact 31 and the base 10 can refer to the relevant description in Method 1, and the description of the elastic member 40 provided between the normally open contact 32 and the base 10 can refer to the relevant description in Method 2, which will not be elaborated here.

[0108] It should also be noted that in the above Method (1) and Method (2), only one of the normally closed contact 31 and the normally open contact 32 is connected to the elastic member 40. At this time, if the elastic member 40 is a conductive member, it also provides an electrical connection between the one of the normally closed contact 31 and the normally open contact 32 connected to the elastic member 40 and the contact terminal 80. For the other one of the normally closed contact 31 and the normally open contact 32, a conductor 50 can be provided to achieve the electrical connection with the contact terminal 80.

[0109] Of course, the electrical connections between the normally closed contact 31 and the contact terminal 80 and between the normally open contact 32 and the contact terminal 80 can also be both achieved through the conductor 50.

[0110] In the above Method (3), for the normally closed contact 31 and the normally open contact 32, either of them can choose any one of Method 1 and Method 2 to achieve the electrical connection with the contact terminal 80.

[0111] In some embodiments, as Figure 1 and Figure 2 shown, a mounting shaft 12 is fixedly provided on the base 10, at least one of the normally closed contact 31 and the normally open contact 32 is inserted through the mounting shaft 12, and both the normally closed contact 31 and the normally open contact 32 can rotate relative to the mounting shaft 12.

[0112] The mounting shaft 12 is fixed on the base 10 and can provide a setting position for the moving contact 30. The moving contact 30 can be sleeved on the mounting shaft 12 to rotatably connect the moving contact 30 to the base 10.

[0113] When the moving contact 30 includes a normally closed contact 31 and a normally open contact 32, both the normally closed contact 31 and the normally open contact 32 can be sleeved on the mounting shaft 12 so that both the normally closed contact 31 and the normally open contact 32 can rotate relative to the base 10.

[0114] When the elastic member 40 is a torsion spring, the coils of the torsion spring can be sleeved on the mounting shaft 12.

[0115] It should be noted that the number of mounting shafts 12 can be multiple, and the multiple mounting shafts 12 can be arranged along the arrangement direction of the normally closed static contact 21 and the normally open static contact 22. In this way, the normally closed contact 31 can be sleeved on the mounting shaft 12 close to the normally closed static contact 21, and the normally open contact 32 can be sleeved on the mounting shaft 12 close to the normally open static contact 22.

[0116] Alternatively, there can also be one mounting shaft 12, and the normally closed contact 31 and the normally open contact 32 can be sleeved on the same mounting shaft 12. At this time, in the axial direction of the mounting shaft 12, the normally closed static contact 21 and the normally open static contact 22 can be offset. In this way, the normally closed contact 31 and the normally open contact 32 are coaxially arranged, and the rotational consistency of the normally closed contact 31 and the normally open contact 32 is relatively high.

[0117] In the present application, the case where the normally closed contact 31 and the normally open contact 32 are sleeved on the same mounting shaft 12 is taken as an example for the following description.

[0118] As Figure 1 shown, a partition 13 is further provided on the mounting shaft 12, and the partition 13 is located between the normally closed contact 31 and the normally open contact 32. In this way, the partition 13 can separate the normally closed contact 31 and the normally open contact 32 to achieve insulation between the normally closed contact 31 and the normally open contact 32.

[0119] Based on this, the partition 13 can isolate the electrical signals of the normally closed contact terminal 81 and the normally open contact terminal 82, reducing the possibility of electrical signal confusion received by the normally closed contact 31 and the normally open contact 32.

[0120] It should also be noted that mounting holes can be provided on the normally closed contact 31 and the normally open contact 32. When the normally closed contact 31 and the normally open contact 32 are provided, the normally closed contact 31 and the normally open contact 32 can be sleeved on the mounting shaft 12 through the mounting holes.

[0121] Similarly, the partition 13 can be provided with an opening. In this way, the partition 13 can be sleeved on the mounting shaft 12 through the opening and separate the normally closed contact 31 and the normally open contact 32 on both sides of the partition 13.

[0122] In some embodiments, the normally-closed contact 31 has opposite first and second ends, and the second end is closer to the normally-closed stationary contact 21 than the first end. Thus, the normally-closed contact 31 can contact the normally-closed stationary contact 21 through the second end and be connected to the mounting shaft 12 through the first end.

[0123] The normally-open contact 32 has opposite third and fourth ends, and the fourth end is closer to the normally-open stationary contact 22 than the third end. Thus, the normally-open contact 32 can contact the normally-closed stationary contact 21 through the fourth end and be connected to the mounting shaft 12 through the third end.

[0124] Wherein, a first contact point may be provided at the second end, and the normally-closed contact 31 can contact the normally-open contact 32 through the first contact point. A second contact point may be provided at the fourth end, and the normally-open contact 32 can contact the normally-open stationary contact 22 through the second contact point.

[0125] In the embodiments of the present application, as Figure 1 and Figure 2 shown, a linkage 33 is connected between the second end and the fourth end. The linkage 33 can realize the connection between the normally-closed contact 31 and the normally-open contact 32, so that the normally-closed contact 31 and the normally-open contact 32 can rotate synchronously.

[0126] Thus, when the elastic member 40 is arranged in the manner provided by way (1) or way (2), when one of the normally-closed contact 31 and the normally-open contact 32 rotates, the other of the normally-closed contact 31 and the normally-open contact 32 can also rotate.

[0127] It should be noted that the linkage 33 can have different structures. For example, two mounting grooves can be provided on the linkage 33, and the second end and the fourth end can be respectively embedded in one mounting groove. Or, the linkage 33 can also be located between the normally-closed contact 31 and the normally-open contact 32 and be connected to the surface of the normally-closed contact 31 facing the normally-open contact 32 and the surface of the normally-open contact 32 facing the normally-closed contact 31.

[0128] For the specific structure and arrangement manner of the linkage 33, the embodiments of the present application do not make specific limitations herein.

[0129] It should also be noted that, in order to reduce the possibility of electrical signal confusion received by the normally-closed contact 31 and the normally-open contact 32, the linkage 33 can also be made of a non-conductive material.

[0130] In some embodiments, as Figure 4 and Figure 6As shown, the contact assembly 100 further includes an emergency stop assembly 60, which is slidably mounted on the base 10. In the sliding direction of the emergency stop assembly 60, the emergency stop assembly 60 has a driving end 61 located between the normally closed static contact 21 and the normally open static contact 22.

[0131] When the normally closed contact 31 is in contact with the normally closed static contact 21, the driving end 61 is opposite to the position of the linkage 33, and the emergency stop assembly 60 can slide in the direction close to the linkage 33, so that the driving end 61 drives the normally closed contact 31 to rotate through the linkage 33, causing the normally closed contact 31 to separate from the normally closed static contact 21.

[0132] In this way, when the emergency stop assembly 60 slides relative to the base 10, the driving end 61 can also slide accordingly, and then can push the normally closed contact 31 and the normally open contact 32 to rotate through the linkage 33, so that the normally closed contact 31 separates from the normally closed static contact 21 and disconnects the circuit. Refer to Figure 6 , Figure 6 shows a schematic diagram of separating the normally closed contact 31 from the normally closed static contact 21 through the emergency stop assembly 60.

[0133] When a device in the circuit fails and needs to be emergently interrupted, the relay can be operated through the emergency stop assembly 60, so that the relay can disconnect the circuit and reduce the occurrence of accidents.

[0134] Wherein, in order to facilitate the rotation of the linkage 33 under the action of the emergency stop assembly 60, the side of the emergency stop assembly 60 facing the linkage 33 can also be inclined.

[0135] Specifically, referring to Figure 1 , Figure 2 and Figure 6 , the surface of the emergency stop assembly 60 facing the linkage 33 is an inclined surface, and the side of the inclined surface close to the normally open static contact 22 is far from the mounting shaft 12, and the side of the inclined surface close to the normally closed static contact 21 is close to the mounting shaft 12.

[0136] The inclined surface can play a guiding role. When the emergency stop assembly 60 slides, the linkage 33 can slide along the inclined surface, thereby facilitating the linkage 33 to drive the normally closed contact 31 and the normally open contact 32 to rotate.

[0137] It should be noted that, as Figure 1 shown, the emergency stop assembly 60 also has an operating end 62 opposite to the driving end 61, and the operating end 62 can be exposed outside the base 10 so that the user can operate the emergency stop assembly 60 to slide through the operating end 62.

[0138] It should also be noted that the emergency stop assembly 60 can be slidably arranged on the base 10 along the first direction X, or can also be slidably arranged on the base 10 along the second direction Y. Among them, the first direction X is the arrangement direction of the normally closed static contact 21 and the normally open static contact 22, and the second direction Y is perpendicular to the first direction X.

[0139] Taking the contact assembly 100 placed in the Figure 6 shown orientation as an example, the first direction X is the left-right direction in the figure, and the second direction Y is the up-down direction in the figure.

[0140] Continue to refer to Figure 6 , when the emergency stop assembly 60 is slidably arranged on the base 10 along the second direction Y, the emergency stop assembly 60 is vertically arranged on the base 10 and can slide up and down relative to the base 10. At this time, the operating end 62 can be exposed above the base 10. When the user performs an emergency stop through the emergency stop assembly 60, the driving end 61 can move downward and push the linkage 33 to rotate counterclockwise, so that the normally closed contact 31 is separated from the normally closed static contact 21.

[0141] When the emergency stop assembly 60 is slidably arranged on the base 10 along the first direction X, the emergency stop assembly 60 is horizontally arranged on the base 10 and can slide left and right relative to the base 10. At this time, the operating end 62 can be exposed on the right side of the base 10. When the user performs an emergency stop through the emergency stop assembly 60, the driving end 61 can move leftward and push the linkage 33 to rotate counterclockwise, so that the normally closed contact 31 is separated from the normally closed static contact 21.

[0142] In some embodiments, as Figure 2 and Figure 7 shown, the contact assembly 100 further includes a guide plate 70. The guide plate 70 is installed on the base 10 and can slide along the arrangement direction of the normally closed static contact 21 and the normally open static contact 22, so that the guide plate 70 can be switched between a first position and a second position.

[0143] Since the normally closed contact 31 and / or the normally open contact 32 face the guide plate 70, when the guide plate 70 slides, the guide plate 70 can contact the normally closed contact 31 and / or the normally open contact 32, and thus can drive the normally closed contact 31 and the normally open contact 32 to rotate.

[0144] When the guide plate 70 is in the first position, the elastic member 40 is in the first compressed state, the normally closed contact 31 contacts the normally closed static contact 21, and the normally open contact 32 is separated from the normally open static contact 22.

[0145] During the process of the guide plate 70 switching from the first position to the second position, the guide plate 70 can push against the elastic member 40, causing the elastic member 40 to be in the second compression state. The normally closed contact 31 separates from the normally closed stationary contact 21, and the normally open contact 32 contacts the normally open stationary contact 22. Among them, the compression amount of the elastic member 40 in the second compression state is greater than the compression amount of the elastic member 40 in the first compression state.

[0146] That is, in the normal state, the guide plate 70 can be in the first position. At this time, the guide plate 70 has no driving effect on the rotation of the normally closed contact 31 and the normally open contact 32. The normally closed contact 31 and the normally open contact 32 can rotate under the action of the elastic member 40 so that the normally closed contact 31 contacts the normally closed stationary contact 21, thereby closing the circuit.

[0147] When overload or other reasons cause the relay to disconnect the circuit for protection, the guide plate 70 can be operated to slide so that the guide plate 70 can switch from the first position to the second position.

[0148] During the process of the guide plate 70 sliding from the first position to the second position, the guide plate 70 can push the normally closed contact 31 and the normally open contact 32 to rotate, so that the normally closed contact 31 and the normally open contact 32 can rotate counterclockwise and further compress the elastic member 40.

[0149] When the guide plate 70 slides to the second position, the normally closed contact 31 separates from the normally closed stationary contact 21, and the normally open contact 32 contacts the normally open stationary contact 22. In this way, the normally closed contact of the relay and the stationary contact 20 corresponding to the normally closed contact can be separated, and the normally open contact and the stationary contact 20 corresponding to the normally open contact can be contacted to disconnect the circuit.

[0150] It should be noted that the normally closed contact and the stationary contact 20 corresponding to the normally closed contact can be connected in series with the circuit, so that the on-off state of the circuit can be controlled through the on-off state of the normally closed contact and the stationary contact 20 corresponding to the normally closed contact.

[0151] The normally open contact and the stationary contact 20 corresponding to the normally open contact can be connected to the indicator light. In this way, when the normally closed contact and the stationary contact 20 corresponding to the normally closed contact are in contact, the indicator light can be powered on to emit a warning light.

[0152] In this application, the moving contact 30 is installed on the base 10 through the elastic member 40 and realizes its contact with the stationary contact 20. As a component that works using its own elasticity, the elastic member 40 has reliable elasticity and strong energy storage and release capabilities, which can make the movement of the moving contact 30 more reliable.

[0153] Based on this, the influence of the state of the moving contact 30 itself on the contact between the moving contact 30 and the stationary contact 20 can be reduced, and further, the possibility of re-adjustment after the moving contact 30 is installed can be reduced.

[0154] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the "in one embodiment" or "in an embodiment" that appears throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics may be combined in one or more embodiments in any suitable manner.

[0155] Finally, it should be noted that the above embodiments are only specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A contact assembly, applied to a relay, characterized in that: include: Pedestal; A stationary contact, fixed to the base; A moving contact, rotatably connected to the base; The elastic member includes a first torsion arm and a second torsion arm, wherein the first torsion arm is connected to the moving contact, and the second torsion arm is connected to the base. The elastic member is used to drive the moving contact to rotate relative to the base so that the moving contact contacts the static contact.

2. The contact assembly according to claim 1, characterized in that: The base is provided with a contact terminal, the elastic member is a conductive member, and the second torsion arm is electrically connected to the contact terminal.

3. The contact assembly according to claim 1, characterized in that: The base is provided with a contact terminal, the elastic member is non-conductive, the base is provided with a mounting member, and the second torsion arm is connected to the mounting member; The contact assembly further includes a conductor, and the conductor is connected between the moving contact and the contact terminal.

4. The contact assembly according to claim 1, characterized in that: The moving contact includes a normally open contact and a normally closed contact connected to each other, and the stationary contact includes a normally closed stationary contact and a normally open stationary contact arranged at intervals; The normally open contact and the normally closed contact are both located between the normally open static contact and the normally closed static contact, the normally closed contact is opposite to the normally closed static contact, and the normally open contact is opposite to the normally open static contact; The elastic member is arranged between the normally closed contact and the base, and / or the elastic member is arranged between the normally open contact and the base; The elastic member is used to drive the normally closed contact and the normally open contact to rotate, so that the normally closed contact contacts the normally closed static contact and the normally open contact is separated from the normally open static contact.

5. The contact assembly according to claim 4, characterized in that: A mounting shaft is fixedly arranged on the base, at least one of the normally closed contact and the normally open contact is inserted through the mounting shaft, and both the normally closed contact and the normally open contact can rotate relative to the mounting shaft; A partition is also provided on the mounting shaft, and the partition is located between the normally closed contact and the normally open contact to isolate the normally closed contact from the normally open contact.

6. The contact assembly according to claim 4, characterized in that: The normally closed contact has a first end and a second end opposite to each other, the second end is closer to the normally closed static contact relative to the first end, and the normally open contact has a third end and a fourth end opposite to each other, the fourth end is closer to the normally open static contact relative to the third end; The first end and the third end are both rotatably connected to the base, and a linkage member is connected between the second end and the fourth end, and the linkage member is used to make the normally closed contact and the normally open contact rotate synchronously.

7. The contact assembly according to claim 6, characterized in that: The contact assembly further comprises an emergency stop assembly, and the emergency stop assembly is slidably mounted on the base; In the sliding direction of the emergency stop assembly, the emergency stop assembly has a driving end located between the normally closed static contact and the normally open static contact; When the normally closed contact is in contact with the normally closed static contact, the driving end is relative to the linkage member, and the emergency stop assembly can slide in a direction close to the linkage member so that the driving end drives the normally closed contact to rotate through the linkage member, thereby separating the normally closed contact from the normally closed static contact.

8. The contact assembly according to claim 7, characterized in that: The driving end is arranged to be inclined toward one side of the linkage member.

9. The contact assembly according to claim 4, characterized in that: The contact assembly further includes a guide plate, which is mounted on the base and can slide along the arrangement direction of the normally closed static contact and the normally open static contact, so that the guide plate can be switched between a first position and a second position; The normally closed contact and / or the normally open contact are opposite to the guide plate; When the guide plate is in the first position, the elastic member is in a first compression state, the normally closed contact is in contact with the normally closed static contact, and the normally open contact is separated from the normally open static contact; When the guide plate switches from the first position to the second position, the guide plate can push the elastic member, so that the elastic member is in a second compressed state, the normally closed contact is separated from the normally closed static contact, and the normally open contact is in contact with the normally open static contact; Wherein, the compression amount of the elastic member in the second compression state is greater than the compression amount of the elastic member in the first compression state.

10. A relay, characterized in that: A contact assembly comprising any one of claims 1-9.

Images