Relay

Abstract

The utility model relates to the technical field of relays, and discloses a relay. According to the relay provided by the utility model, after the movable contact is in contact with the static contact to enable the relay to be in a closed state, the voltage supplied to the coil can be properly reduced, and only the elastic force of the first elastic piece acting on the first push rod and the magnetic field force of the coil acting on the first push rod are kept balanced in the horizontal direction; compared with a traditional scheme that large current is used in the whole power-on process of the relay, the relay with the structure can properly reduce the voltage supplied subsequently after the relay is switched from the off state to the on state, so that the energy consumption is reduced, and the cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, and particularly relates to a relay. Background Art

[0002] A relay is an electrical control device. When the change of the input quantity (excitation quantity) reaches the specified requirement, it is an electrical appliance that makes the controlled quantity have a predetermined step change in the electrical output circuit. It has an interaction relationship between a control system (also called an input circuit) and a controlled system (also called an output circuit). It is usually applied to an automatic control circuit. Its working principle is to generate an electromagnetic field by using a small current in a coil to control the action of a large-current switch to control the connection or disconnection of the main circuit. Therefore, it plays roles such as automatic regulation, safety protection, and circuit conversion in the circuit.

[0003] The existing relay is directly powered by a power supply. The relay has two states: open and closed. When the state needs to be switched, the electromagnetic field generated by the excitation current in the coil is used to complete the switching to control the connection or disconnection of the main circuit. However, if the coil of the traditional relay needs to be closed for a long time, it requires a large current to be energized for a long time, which will increase the energy consumption of the system. Summary of the Utility Model

[0004] In view of this, the utility model provides a relay to solve the problem that a large current needs to be energized for a long time when the coil is closed for a long time, resulting in a high energy consumption of the system.

[0005] The utility model provides a relay, which comprises a housing assembly, a coil assembly, a first reset assembly and a commutation assembly. Specifically, the housing assembly includes a housing, and a first accommodation chamber is arranged inside the housing; the coil assembly is installed in the first accommodation chamber, the coil assembly includes a coil and a moving iron core, and the moving iron core is movably installed inside the coil; the first reset assembly is installed in the first accommodation chamber, the first reset assembly and the coil assembly are arranged opposite to each other and spaced apart in the horizontal direction, the first reset assembly includes a first elastic member, the first elastic member is arranged horizontally, the first elastic member has two elastic ends that approach or move away from each other along its axis direction, and the elastic end close to the inner side wall surface of the housing directly or indirectly acts on this side wall surface; the commutation assembly includes a first push rod, a second push rod and a commutation member, the first push rod is arranged horizontally, one end of the first push rod arranged along its axis acts on the elastic end far away from the inner side wall surface of the housing, the other end of the first push rod arranged along its axis is directly or indirectly connected to the moving iron core, the second push rod is arranged vertically, and one end of the second push rod close to the moving contact is used for directly installing or indirectly installing the moving contact, the commutation member is provided with two spaced-apart rotating ends, one of the rotating ends is rotatably connected to the end of the second push rod far away from the moving contact, and the other rotating end is rotatably connected to the first push rod.

[0006] Beneficial effects: By forming a commutation assembly with the first push rod, the second push rod and the commutation member, when the moving iron core moves inside the coil, it will drive the first push rod to move. During the movement of the first push rod, it will drive the commutation member to rotate, and when the commutation member rotates, it will drive the second push rod to move, so as to drive the moving contact to contact or separate from the static contact; also, by arranging the first reset assembly and the coil assembly opposite to each other and spaced apart inside the first accommodation chamber, when the coil is energized, the coil generates magnetic force and pushes the moving iron core to move, so as to drive the first push rod to approach the first elastic member and make the first elastic member store energy. During this process, the horizontally arranged commutation member gradually transitions to a vertically arranged state until the second push rod drives the moving contact to contact the static contact, realizing circuit conduction and self-locking. During the process of the first elastic member storing energy, the force exerted by the first push rod on the first elastic member is greater than the force of the first elastic member resisting deformation. Therefore, after the moving contact contacts the static contact to make the relay in a closed state, the voltage supplied to the coil can be appropriately reduced, and only the elastic force of the first elastic member acting on the first push rod and the magnetic force of the coil acting on the first push rod need to be balanced in the horizontal direction. Compared with the traditional scheme of using a large current throughout the entire process of the relay being energized, the relay of this structure can appropriately reduce the subsequent supplied voltage after the relay is switched from the off state to the on state, realizing energy consumption reduction and thus cost reduction.

[0007] In an alternative embodiment, the relay further includes a ceramic component, the ceramic component includes a ceramic base, the ceramic base is mounted on the top of the housing, the top of the ceramic base is used for mounting a stationary contact, and a second accommodation chamber is formed inside the ceramic base; a guiding boss is provided on the inner top wall surface of the housing, the guiding boss extends towards the bottom side of the housing, and a guiding hole communicating the first accommodation chamber and the second accommodation chamber is formed in the guiding boss; the second push rod is movably arranged in the guiding hole.

[0008] Beneficial effects: By mounting the ceramic base on the top of the housing, mounting the stationary contact on the top of the ceramic base, and communicating the second accommodation chamber in the ceramic base with the first accommodation chamber through the guiding hole, when the second push rod moves in the guiding hole, the moving contact is made to approach or move away from the stationary contact, realizing the closing or opening of the relay.

[0009] In an alternative embodiment, the relay further includes a second reset component, the second reset component is located between the moving contact and the end of the second push rod close to the moving contact, the second reset component includes a second elastic member, the second elastic member is arranged vertically, and the second elastic member also has two elastic ends approaching or moving away from each other along its axis direction. The elastic end close to the inner top wall surface of the housing directly or indirectly acts on the moving contact, and the elastic end far from the inner top wall surface of the housing directly or indirectly acts on the end of the second push rod close to the moving contact.

[0010] Beneficial effects: By arranging the second reset component between the end of the second push rod close to the moving contact and the moving contact, arranging the second elastic member in the second reset component vertically, directly or indirectly acting the elastic end close to the inner top wall surface of the housing on the moving contact, and directly or indirectly acting the elastic end far from the inner top wall surface of the housing on the end of the second push rod close to the moving contact. When the power supply supplies power to the coil inside the relay, the thrust of the commutation member acting on the second push rod is greater than the force of the second elastic member resisting deformation, so that the second push rod moves towards the side close to the stationary contact, and the second elastic member deforms to realize energy storage. When the relay stops supplying power to the coil, the thrust of the commutation member acting on the second push rod gradually decreases. When the elastic force of the second elastic member acting on the second push rod is greater than the thrust of the commutation member acting on the second push rod, the second elastic member releases energy, drives the second push rod away from the stationary contact, and separates the moving contact and the stationary contact to realize an open circuit.

[0011] In an alternative embodiment, the second reset assembly further includes a top cover seat and a first mounting seat. The top cover seat is disposed near the stationary contact in the vertical direction. Both ends of the top cover seat disposed in the horizontal direction are moving contacts, and the two moving contacts are respectively used to contact or separate from the two stationary contacts. The first mounting seat is movably mounted at the bottom of the ceramic seat. The elastic end of the second elastic member disposed near the inner top wall surface of the housing acts on the top cover seat, and the elastic end of the second elastic member disposed away from the inner top wall surface of the housing acts on the surface of the first mounting seat.

[0012] Advantageous effects: By adding a top cover seat and a first mounting seat, the top cover seat is disposed near the stationary contact in the vertical direction, the first mounting seat is mounted at the bottom of the ceramic seat, and the two elastic ends of the second elastic member act on the top cover seat and the surface of the first mounting seat respectively, so that the installation of the second elastic member can be completed, which is convenient for the second elastic member to deform when the first mounting seat moves subsequently.

[0013] In an alternative embodiment, a magnetic pole piece is further provided between any one of the moving contacts and the stationary contact that contacts or separates from the moving contact.

[0014] Advantageous effects: By further providing a magnetic pole piece between any one of the moving contacts and the stationary contact that contacts or separates from the moving contact, the trigger current and trigger voltage of the relay are indirectly adjusted. At the same time, unstable phenomena such as contact adhesion and jitter of the relay during operation are avoided.

[0015] In an alternative embodiment, the first reset assembly further includes a second mounting seat. The second mounting seat is located at the elastic end of the first elastic member disposed near the inner side wall surface of the housing and is mounted on the side wall surface where the elastic end is located.

[0016] Advantageous effects: By adding a second mounting seat, during installation, the second mounting seat is mounted on the side wall surface where the elastic end of the first elastic member disposed near the inner side wall surface of the housing is located, and the two elastic ends of the first elastic member are respectively connected to the second mounting seat and the first push rod, so that the installation of the first elastic member can be completed.

[0017] In an alternative embodiment, the second reset assembly further includes a shielding cover, and the shielding cover is mounted at the bottom of the ceramic seat.

[0018] Advantageous effects: By mounting a shielding cover at the bottom of the ceramic seat, when high voltage or high current occurs when the moving contact and the stationary contact of the relay are in contact, the shielding cover can provide a physical barrier to prevent the coil assembly from being affected after the top of the housing is broken down, and reduce the short - circuit risk caused by accidental connection.

[0019] In an alternative embodiment, the coil assembly further includes a yoke, a side cover plate, and a third push rod. Specifically, the yoke is installed in the first accommodation chamber, and the yoke is provided with a third accommodation chamber with an open side near the first elastic member. The third accommodation chamber is used for installing the coil assembly; the side cover plate is installed at the opening, and the side cover plate is provided with a through hole; one end of the third push rod arranged along its axis is located outside the yoke and connected to the first push rod, and the other end of the third push rod arranged along its axis passes through the through hole and is connected to the moving iron core; wherein, when the coil is powered off, there is a gap between the moving iron core and the side cover plate in the horizontal direction, and when the coil is powered on, the moving iron core moves closer to the side cover plate in the horizontal direction until the moving iron core contacts the side cover plate in the horizontal direction.

[0020] Advantages: By adding a yoke in the third accommodation chamber and installing the coil assembly inside the yoke, the magnetic field generated by the coil can be enhanced, making the magnetic lines of force more concentrated and strengthened. The side cover plate is installed at the opening of the third accommodation chamber of the yoke. When the coil is powered on, the yoke and the moving iron core form a closed magnetic circuit, enclosing the magnetic lines of force generated by the coil inside, thereby reducing the leakage of magnetic energy, improving the utilization rate of magnetic energy and the efficiency of the electromagnet; by providing a through hole in the side cover plate and adding a third push rod, and when the coil is powered off, leaving a gap between the moving iron core and the side cover plate in the horizontal direction. After the coil is powered on, the generated magnetic field will drive the moving iron core to drive the third push rod to move in the horizontal direction, and then drive the first push rod to move in the horizontal direction. When the first push rod moves, it will drive the rotating member to rotate around its two rotating ends until the rotating member transitions to a vertical state, causing the moving contact to contact the static contact and realizing the closing of the relay.

[0021] In an alternative embodiment, the commutation assembly further includes a baffle, and the baffle is installed on the first push rod; wherein, when the commutation member is in a vertical state, the baffle is arranged in the horizontal direction on the side of the commutation member close to the coil assembly.

[0022] Advantages: By adding a baffle and installing the baffle on the first push rod, when the commutation member is in a vertical state, the baffle is arranged in the horizontal direction on the side of the commutation member close to the coil assembly. With this arrangement, it can be avoided that the commutation member continues to rotate towards the other side after transitioning to the vertical state, making the closing process of the relay more reliable.

[0023] In an alternative embodiment, the bottom of the first accommodation chamber is open; the housing assembly further includes a base, and the base is installed at the opening to separate the first accommodation chamber from the outside. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the specific embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the specific embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic structural diagram of the relay provided by the embodiment of the present utility model;

[0026] Figure 2 Partial structural diagram of another perspective of the relay provided by the embodiment of the present utility model;

[0027] Figure 3 Exploded view of the coil assembly, first reset assembly, and first push rod of the relay provided by the embodiment of the present utility model;

[0028] Figure 4 Exploded view of the second push rod, commutation member, guide slide rail, ceramic seat, second reset assembly, magnetic pole piece, and shielding cover of the relay provided by the embodiment of the present utility model;

[0029] Figure 5 Top view of the relay provided by the embodiment of the present utility model;

[0030] Figure 6 For Figure 5 Cross-sectional view of the A-A section in

[0031] Explanation of reference numerals:

[0032] 1. Housing assembly; 11. Housing; 111. First accommodation chamber; 112. Guide boss; 12. Base;

[0033] 2. Coil assembly; 21. Coil; 22. Moving iron core; 23. Yoke; 24. Side cover plate; 25. Third push rod; 26. Coil bracket;

[0034] 3. First reset assembly; 31. First elastic member; 32. Second mounting seat;

[0035] 4. Commutation assembly; 41. First push rod; 42. Second push rod; 43. Commutation member; 431. Rotating end; 44. Baffle; 45. Guide slide rail;

[0036] 5. Ceramic assembly; 51. Ceramic seat; 511. Second accommodation chamber; 52. Lead post;

[0037] 6. Second reset assembly; 61. Second elastic member; 62. Top cover seat; 63. First mounting seat;

[0038] 71. Pole piece; 72. Shielding cover. Detailed implementation manners

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are 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 should not be construed as a limitation to the present application.

[0041] The terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include one or more of such features.

[0042] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may 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.

[0043] Refer to Figures 1 to 6 , Figure 1 which shows the structural schematic diagram of the relay provided by the embodiment of the present application; Figure 2 which shows the partial structural schematic diagram of another perspective of the relay provided by the embodiment of the present application;

[0044] Figure 3 which shows the exploded view of the coil assembly, the first reset assembly, and the first push rod of the relay provided by the embodiment of the present application; Figure 4 which shows the exploded view of the second push rod, the commutation member, the guiding slide rail, the ceramic seat, the second reset assembly, the pole piece, and the shielding cover of the relay provided by the embodiment of the present application; Figure 5The top view of the relay provided by the embodiment of the present application is shown; Figure 6 is shown Figure 5 a cross-sectional view of the A-A section in.

[0045] Next, in conjunction with Figures 1 to 6 , the embodiments of the present invention will be described.

[0046] The present application provides a relay, as Figure 1 shown, which includes a housing assembly 1, a coil assembly 2, a first reset assembly 3, and a commutation assembly 4.

[0047] Specifically, as Figure 1 , Figure 2 , Figure 5 and Figure 6 shown, the housing assembly 1 includes a housing 11, and a first accommodation chamber 111 is provided inside the housing 11; the coil assembly 2 is installed in the first accommodation chamber 111, the coil assembly 2 includes a coil 21 and a moving iron core 22, and the moving iron core 22 is movably installed inside the coil 21; the first reset assembly 3 is installed in the first accommodation chamber 111, the first reset assembly 3 and the coil assembly 2 are relatively arranged and spaced in the horizontal direction, the first reset assembly 3 includes a first elastic member 31, the first elastic member 31 is horizontally arranged, the first elastic member 31 has two elastic ends that approach or move away from each other along its axis direction, and the elastic end close to the inner side wall surface of the housing 11 directly or indirectly acts on this side wall surface; the commutation assembly 4 includes a first push rod 41, a second push rod 42, and a commutation member 43, the first push rod 41 is horizontally arranged, one end of the first push rod 41 arranged along its axis acts on the elastic end far from the inner side wall surface of the housing 11, the other end of the first push rod 41 arranged along its axis is directly or indirectly connected to the moving iron core 22, the second push rod 42 is vertically arranged, and one end of the second push rod 42 close to the moving contact is used to directly install or indirectly install the moving contact, the commutation member 43 is provided with two spaced-apart rotating ends 431, one of the rotating ends 431 is rotatably connected to the end of the second push rod 42 far from the moving contact, and the other rotating end 431 is rotatably connected to the first push rod 41.

[0048] With the technical solution of this embodiment, by forming a commutation assembly 4 with the first push rod 41, the second push rod 42 and the commutation member 43, when the moving iron core 22 moves inside the coil 21, it will drive the first push rod 41 to move. During the movement of the first push rod 41, it drives the commutation member 43 to rotate. When the commutation member 43 rotates, it will drive the second push rod 42 to move, so as to drive the moving contact to contact or separate from the static contact; and by relatively arranging the first reset assembly 3 and the coil assembly 2 and spacing them inside the first accommodation chamber 111. When the coil 21 is energized, the coil 21 generates magnetic force and pushes the moving iron core 22 to move, so as to drive the first push rod 41 close to the first elastic member 31, making the first elastic member 31 store energy. During this process, the horizontally arranged commutation member 43 gradually transitions to a vertically arranged state until the second push rod 42 drives the moving contact to contact the static contact, realizing circuit conduction and self-locking.

[0049] It should be noted that during the process of the first elastic member 31 storing energy, the force exerted by the first push rod 41 on the first elastic member 31 needs to be greater than the force of the first elastic member 31 resisting deformation. Therefore, after the moving contact contacts the static contact to make the relay in the closed state, the voltage supplied to the coil 21 can be appropriately reduced, and only the elastic force of the first elastic member 31 acting on the first push rod 41 and the magnetic field force of the coil 21 acting on the first push rod 41 need to be kept balanced in the horizontal direction. Compared with the traditional scheme of using large current throughout the entire process of the relay being energized, the relay of this structure can appropriately reduce the subsequent supplied voltage after the relay switches from the off state to the on state, realizing energy consumption reduction and thus cost reduction.

[0050] It can be explained that in the above embodiment, two through holes spaced in the length direction of the commutation member 43 can be opened at the rotating end 431. At this time, the first push rod 41 and the second push rod 42 are both provided with connection holes coaxially arranged with the through holes. During installation, two fixing pins are used to connect the connection holes of the first push rod 41, the connection holes of the second push rod 42 and the two through holes respectively to form a hinge structure.

[0051] Still as Figure 1 、 Figure 2 、 Figure 5 and Figure 6 shown, the relay further includes a ceramic assembly 5. The ceramic assembly 5 includes a ceramic base 51. The ceramic base 51 is installed on the top of the housing 11. The top of the ceramic base 51 is used to install the static contact. A second accommodation chamber 511 is opened inside the ceramic base 51; a guiding boss 112 is provided on the inner top wall surface of the housing 11. The guiding boss 112 extends towards the bottom side of the housing 11, and a guiding hole connecting the first accommodation chamber 111 and the second accommodation chamber 511 is opened in the guiding boss 112; the second push rod 42 is movably arranged in the guiding hole.

[0052] Using the technical solution of this embodiment, by installing the ceramic base 51 on the top of the housing 11, installing the static contact on the top of the ceramic base 51, and connecting the second accommodation chamber 511 in the ceramic base 51 to the first accommodation chamber 111 through the guiding hole, when the second push rod 42 moves in the guiding hole, the moving contact is made to approach or move away from the static contact, thereby achieving the closing or opening of the relay.

[0053] It can be explained that in the above embodiment, the static contact is selected as the wire column 52. At this time, two spaced-apart mounting holes are provided on the top of the ceramic base 51, and two wire columns 52 are respectively installed in the two mounting holes, and one electrical connection end of each wire column 52 extends into the first accommodation chamber 111.

[0054] As Figure 4 shown, the relay further includes a second reset assembly 6. The second reset assembly 6 is located between the moving contact and the end of the second push rod 42 close to the moving contact. The second reset assembly 6 includes a second elastic member 61. The second elastic member 61 is arranged vertically, and the second elastic member 61 also has two elastic ends that approach or move away from each other along its axis direction. In the second elastic member 61, the elastic end close to the inner top wall surface of the housing 11 directly or indirectly acts on the moving contact, and the elastic end far from the inner top wall surface of the housing 11 directly or indirectly acts on the end of the second push rod 42 close to the moving contact.

[0055] Using the technical solution of this embodiment, by arranging the second reset assembly 6 between the end of the second push rod 42 close to the moving contact and the moving contact, arranging the second elastic member 61 in the second reset assembly 6 vertically, directly or indirectly acting the elastic end close to the inner top wall surface of the housing 11 on the moving contact, and directly or indirectly acting the elastic end far from the inner top wall surface of the housing 11 on the end of the second push rod 42 close to the moving contact. When the power supply supplies power to the coil 21 inside the relay, the thrust of the commutation member 43 acting on the second push rod 42 is greater than the force of the second elastic member 61 resisting deformation, so that the second push rod 42 moves toward the static contact side, and the second elastic member 61 deforms to achieve energy storage. When the relay stops supplying power to the coil 21, the thrust of the second push rod 42 received by the commutation member 43 gradually decreases. When the elastic force of the second elastic member 61 acting on the second push rod 42 is greater than the thrust of the commutation member 43 acting on the second push rod 42, the second elastic member 61 releases energy, drives the second push rod 42 away from the static contact, and separates the moving contact and the static contact to achieve an open circuit.

[0056] It can be explained that as Figure 1 、 Figure 2 、 Figure 4 and Figure 6 shown, the commutation assembly 4 further includes a guiding slide rail 45. At this time, the guiding slide rail 45 is sleeved outside the second push rod 42.

[0057] Furthermore, in the present application, the guiding holes of the guiding bosses 112 are conformally arranged with the outer wall of the guiding slide rails 45. At this time, a guiding chamber is provided inside the guiding slide rails 45, and a convex portion is provided on the outer wall of the second push rod 42. The convex portion abuts against the inner wall of the guiding chamber to achieve synchronous movement of the guiding slide rails 45 and the second push rod 42.

[0058] It can be explained that, as Figure 3 shown, the second reset assembly 6 further includes a top cover seat 62 and a first mounting seat 63. The top cover seat 62 is arranged close to the static contact in the vertical direction. Both end portions of the top cover seat 62 arranged in the horizontal direction are moving contacts, and the two moving contacts are respectively used to contact or separate from the two static contacts. The first mounting seat 63 is movably mounted at the bottom of the ceramic seat 51; the elastic end portion of the second elastic member 61 close to the inner top wall surface of the housing 11 acts on the top cover seat 62, and the elastic end portion of the second elastic member 61 far from the inner top wall surface of the housing 11 acts on the surface of the first mounting seat 63.

[0059] Using the technical solution of this embodiment, by adding the top cover seat 62 and the first mounting seat 63, arranging the top cover seat 62 close to the static contact in the vertical direction, mounting the first mounting seat 63 at the bottom of the ceramic seat 51, and respectively acting the two elastic end portions of the second elastic member 61 on the top cover seat 62 and the surface of the first mounting seat 63, the installation of the second elastic member 61 can be completed, which is convenient for the second elastic member 61 to deform when the first mounting seat 63 moves subsequently.

[0060] Furthermore, a magnetic pole piece 71 is also provided between any moving contact and the static contact that contacts or separates from the moving contact.

[0061] Using the technical solution of this embodiment, by further providing a magnetic pole piece 71 between any moving contact and the static contact that contacts or separates from the moving contact, the trigger current and trigger voltage of the relay are indirectly adjusted. At the same time, unstable phenomena such as contact adhesion and jitter of the relay during operation are avoided.

[0062] It should be noted that in the above embodiment, the material of the magnetic pole piece 71 is not specifically limited.

[0063] Preferably, the magnetic pole piece 71 is made of aluminum alloy, and the aluminum alloy contains a certain proportion of magnetic elements such as iron, nickel, and cobalt. Since it is common knowledge, it will not be elaborated here.

[0064] Similarly, the second elastic member 61 is preferably a spring. At this time, abutting convex portions are provided on the end face of the first mounting seat 63 close to the top cover seat 62 in the horizontal direction and the end face of the top cover seat 62 close to the first mounting seat 63 in the horizontal direction. The two abutting convex portions are coaxially arranged and are respectively used for sleeving the two elastic end portions of the spring.

[0065] AsFigures 1 to 3 and Figure 6 As shown in Figure 6 , the first reset component 3 further includes a second mounting seat 32, which is located at the elastic end of the first elastic member 31 close to the inner side wall surface of the housing 11 and is mounted on the side wall surface where the elastic end is located.

[0066] With the technical solution of this embodiment, by adding the second mounting seat 32, during installation, the second mounting seat 32 is mounted on the side wall surface where the elastic end of the first elastic member 31 close to the inner side wall surface of the housing 11 is located, and the two elastic ends of the first elastic member 31 are respectively connected to the second mounting seat 32 and the first push rod 41, then the installation of the first elastic member 31 can be completed.

[0067] Similarly, the first elastic member 31 is preferably a spring. At this time, the end face of the second mounting seat 32 close to the first push rod 41 in the horizontal direction and the end face of the first push rod 41 close to the second mounting seat 32 in the horizontal direction are both provided with clamping convex portions. At this time, the two abutting convex portions are arranged coaxially, and the two elastic ends of the spring are respectively sleeved on the two clamping convex portions.

[0068] As Figure 1 、 Figure 4 and Figure 6 As shown in Figure 6 , the second reset component 6 further includes a shielding cover 72, and the shielding cover 72 is mounted at the bottom of the ceramic base 51.

[0069] With the technical solution of this embodiment, by mounting the shielding cover 72 at the bottom of the ceramic base 51, when high voltage or high current occurs when the moving contact and the static contact of the relay are in contact, the shielding cover 72 can provide a physical barrier to prevent the coil assembly 2 from being affected after the top of the housing 11 is punctured, and reduce the short - circuit risk caused by accidental connection.

[0070] It can be noted that in this application, the connection between the first push rod 41 and the moving iron core 22 is not specifically limited, and it can be a direct connection or an indirect connection.

[0071] As one of the embodiments, an indirect connection method is selected. As Figures 1 to 3 and Figure 6As shown in the figure, the coil assembly 2 further includes a yoke 23, a side cover plate 24, and a third push rod 25. Specifically, the yoke 23 is installed in the first accommodation chamber 111, and the yoke 23 is provided with a third accommodation chamber with an open side close to the first elastic member 31. The third accommodation chamber is used to install the coil assembly 2; the side cover plate 24 is installed at the opening, and the side cover plate 24 is provided with a through hole; one end of the third push rod 25 arranged along its axis is located outside the yoke 23 and is connected to the first push rod 41, and the other end of the third push rod 25 arranged along its axis passes through the through hole and is connected to the moving iron core 22; wherein, when the coil 21 is powered off, there is a gap between the moving iron core 22 and the side cover plate 24 in the horizontal direction, and when the coil 21 is powered on, the moving iron core 22 moves closer to the side cover plate 24 in the horizontal direction until the moving iron core 22 contacts the side cover plate 24 in the horizontal direction.

[0072] Using the technical solution of this embodiment, by adding a yoke 23 in the third accommodation chamber and installing the coil assembly 2 inside the yoke 23, the magnetic field generated by the coil 21 can be enhanced, making the magnetic force lines more concentrated and strengthened, and using the side cover plate 24 to be installed at the opening of the third accommodation chamber of the yoke 23. When the coil 21 is powered on, the yoke 23 and the moving iron core 22 form a closed magnetic circuit, enclosing the magnetic force lines generated by the coil 21 inside, thereby reducing the leakage of magnetic energy and improving the utilization rate of magnetic energy and the efficiency of the electromagnet; by providing a through hole in the side cover plate 24 and adding a third push rod 25, and at the same time, when the coil 21 is powered off, there is a gap between the moving iron core 22 and the side cover plate 24 in the horizontal direction. After the coil 21 is powered on, the generated magnetic field will drive the moving iron core 22 to drive the third push rod 25 to move in the horizontal direction, and then drive the first push rod 41 to move in the horizontal direction. When the first push rod 41 moves, it will drive the rotating member to rotate around its two rotating ends 431 until the rotating member transitions to a vertical state, making the moving contact and the static contact contact, realizing the closing of the relay.

[0073] Of course, in other alternative embodiments, a direct connection method can also be selected. For example, the first push rod 41 passes through the through hole of the side cover plate 24 and is fixedly connected to the moving iron core 22.

[0074] It can be explained that as Figures 1 to 3 and Figure 6 shown, the coil assembly 2 further includes a coil bracket 26. At this time, the coil bracket 26 is installed inside the third accommodation chamber, and the structure between the two end portions of the coil bracket 26 arranged in the horizontal direction is set as a variable diameter structure. At the same time, the inner wall surface of the coil 21 is conformally matched with the coil bracket 26. In this way, the inner wall surface of the coil 21 is a variable diameter structure, which helps to reduce the leakage of magnetic energy, so that the generated magnetic field can act concentratedly on the moving magnet, improving the utilization rate of magnetic energy.

[0075] Furthermore, in the present embodiment, the moving iron core 22 is located at the central axis position of the coil bracket 26.

[0076] Similarly, in the present embodiment, the connection manner between the third push rod 25 and the first push rod 41 is not specifically limited.

[0077] Preferably, the third push rod 25 is connected and fixed to the first push rod 41 through a fastener. At this time, connection through holes are provided at both ends of the third push rod 25 and the first push rod 41 that face and approach each other. The fastener is preferably a bolt and a nut.

[0078] As Figure 1 、 Figure 2 and Figure 6 shown, the commutation assembly 4 further includes a baffle 44, and the baffle 44 is installed on the first push rod 41; wherein, when the commutation member 43 is in the vertical state, the baffle 44 is arranged in the horizontal direction on the side of the commutation member 43 close to the coil assembly 2.

[0079] With the technical solution of the present embodiment, by adding the baffle 44 and installing the baffle 44 on the first push rod 41, when the commutation member 43 is in the vertical state, the baffle 44 is arranged in the horizontal direction on the side of the commutation member 43 close to the coil assembly 2. With such an arrangement, it is possible to prevent the commutation member 43 from continuing to rotate towards the other side after transitioning to the vertical state, making the closing process of the relay more reliable.

[0080] It should be noted that, in the above embodiment, the bottom of the first accommodation chamber 111 is open; the housing assembly 1 further includes a base 12, and the base 12 is installed at the opening to separate the first accommodation chamber 111 from the outside.

[0081] Furthermore, during installation, the yoke 23 is installed on the base 12. Specifically, the yoke 23 can be fixed to the base 12 using bolt fasteners, or the yoke 23 can be adhesively fixed to the base 12.

[0082] In use, the power supply supplies power to the coil 21 of the relay. The coil 21 generates a magnetic force through the current, which pushes the moving iron core 22 to move towards the side cover plate 24 within the coil bracket 26. During the movement, the third push rod 25 and the first push rod 41 are driven to move synchronously. During the movement of the first push rod 41, it acts on the first elastic member 31, causing the first elastic member 31 to deform and store energy. During this process, the first push rod 41 also drives the commutator 43 in a horizontal state to rotate around its rotating end 431. During the rotation of the commutator 43, it drives the second push rod 42 to move upward, that is, towards the direction of the static contact. During the movement of the second push rod 42, it acts on the second elastic member 61, causing the second elastic member 61 to deform and store energy until the commutator 43 is in a vertical state. At this time, the two moving contacts in the horizontal direction of the top cover seat 62 are respectively in contact with the two static contacts, making the relay in a closed state, and the commutator 43 is in a self-locking state in the vertical direction. That is, through the displacement in different directions between the first push rod 41 and the second push rod 42, the rotation of the commutator 43, and the cooperation of the first elastic member 31 and the second elastic member 61, the self-locking function is achieved after the relay is closed, and the power consumption of the power supply is appropriately reduced, thereby reducing the cost.

[0083] During the process of the first elastic member 31 storing energy, since the force exerted by the first push rod 41 on the first elastic member 31 is greater than the force of the first elastic member 31 resisting deformation, therefore, after self-locking, the voltage supplied to the coil 21 can be reduced, causing the magnetic force generated by the coil 21 to gradually decrease until the elastic force of the first elastic member 31 acting on the first push rod 41 and the magnetic force of the coil 21 acting on the first push rod 41 are balanced in the horizontal direction, then the relay can still be in a closed state.

[0084] After the relay is used up, the power supply stops supplying power to the coil 21. At this time, the elastic force of the first elastic member 31 acting on the first push rod 41 and the magnetic force of the coil 21 acting on the first push rod 41 cannot be balanced in the horizontal direction, resulting in the first elastic member 31 releasing energy, driving the first push rod 41 and the third push rod 25 to move, and then driving the moving iron core 22 away from the side cover plate 24. At the same time, the commutator 43 in a vertical state gradually transitions to a horizontal state. During this process, the second elastic member 61 releases energy, and the second push rod 42 moves downward until the moving contact is separated from the static contact, realizing the function of the relay being disconnected.

[0085] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A relay, characterized in that, Comprising: A housing assembly (1), the housing assembly (1) includes a housing (11), and a first accommodation chamber (111) is provided inside the housing (11); A coil assembly (2), the coil assembly (2) is installed in the first accommodation chamber (111), the coil assembly (2) includes a coil (21) and a movable iron core (22), and the movable iron core (22) is movably installed inside the coil (21); A first reset assembly (3), the first reset assembly (3) is installed in the first accommodation chamber (111), the first reset assembly (3) and the coil assembly (2) are oppositely arranged and spaced in the horizontal direction, the first reset assembly (3) includes a first elastic member (31), the first elastic member (31) is horizontally arranged, the first elastic member (31) has two elastic ends that approach or move away from each other along its axis direction, and the elastic end close to the inner side wall surface of the housing (11) directly or indirectly acts on this side wall surface; A commutation assembly (4), the commutation assembly (4) includes a first push rod (41), a second push rod (42) and a commutation member (43), the first push rod (41) is horizontally arranged, one end of the first push rod (41) arranged along its axis acts on the elastic end far from the inner side wall surface of the housing (11), the other end of the first push rod (41) arranged along its axis is directly or indirectly connected to the movable iron core (22), the second push rod (42) is vertically arranged, and one end of the second push rod (42) close to the moving contact is used for directly installing or indirectly installing the moving contact, the commutation member (43) is provided with two spaced-apart rotating ends (431), one of the rotating ends (431) is rotatably connected to the end of the second push rod (42) far from the moving contact, and the other rotating end (431) is rotatably connected to the first push rod (41).

2. The relay according to claim 1, wherein The relay further includes: A ceramic assembly (5), the ceramic assembly (5) includes a ceramic seat (51), the ceramic seat (51) is installed on the top of the housing (11), the top of the ceramic seat (51) is used for installing a static contact, and a second accommodation chamber (511) is opened inside the ceramic seat (51); A guiding boss (112) is provided on the inner top wall surface of the housing (11), the guiding boss (112) extends toward the bottom side of the housing (11), and a guiding hole communicating the first accommodation chamber (111) and the second accommodation chamber (511) is opened in the guiding boss (112); The second push rod (42) is movably arranged in the guiding hole.

3. The relay according to claim 2, wherein The relay further includes: A second reset component (6), the second reset component (6) being located between the moving contact and the end of the second push rod (42) close to the moving contact. The second reset component (6) includes a second elastic member (61), the second elastic member (61) being arranged vertically. The second elastic member (61) also has two elastic ends that approach or move away from each other along its axial direction. The elastic end close to the inner top wall surface of the housing (11) directly or indirectly acts on the moving contact, and the elastic end far from the inner top wall surface of the housing (11) directly or indirectly acts on the end of the second push rod (42) close to the moving contact.

4. The relay according to claim 3, wherein the second reset component (6) further includes a top cover seat (62) and a first mounting seat (63). The top cover seat (62) is arranged close to the static contact in the vertical direction. The two end portions of the top cover seat (62) arranged in the horizontal direction are both moving contacts, and the two moving contacts are respectively used to contact or separate from the two static contacts. The first mounting seat (63) is movably mounted at the bottom of the ceramic seat (51); the elastic end of the second elastic member (61) close to the inner top wall surface of the housing (11) acts on the top cover seat (62), and the elastic end of the second elastic member (61) far from the inner top wall surface of the housing (11) acts on the surface of the first mounting seat (63).

5. The relay according to claim 4, wherein a magnetic pole piece (71) is further provided between any one of the moving contacts and the static contact that contacts or separates from the moving contact.

6. The relay according to any one of claims 1-5, wherein the first reset component (3) further includes a second mounting seat (32), the second mounting seat (32) being located at the elastic end of the first elastic member (31) close to the inner side wall surface of the housing (11) and being mounted on the side wall surface where the elastic end is located.

7. The relay according to any one of claims 3-5, wherein the second reset component (6) further includes a shielding cover (72), the shielding cover (72) being mounted at the bottom of the ceramic seat (51).

8. The relay according to any one of claims 1-5, wherein the coil assembly (2) further includes: a magnetic yoke (23), the magnetic yoke (23) being mounted in the first accommodation chamber (111), and the magnetic yoke (23) having a third accommodation chamber with an open side close to the first elastic member (31), the third accommodation chamber being used to mount the coil assembly (2); a side cover plate (24), the side cover plate (24) being mounted at the opening, and the side cover plate (24) being provided with a through hole; a third push rod (25), one end of the third push rod (25) arranged along its axial direction being located outside the magnetic yoke (23) and connected to the first push rod (41), and the other end of the third push rod (25) arranged along its axial direction passing through the through hole and then being connected to the moving iron core (22); Among them, when the coil (21) is powered off, a gap is left between the moving iron core (22) and the side cover plate (24) in the horizontal direction. When the coil (21) is powered on, the moving iron core (22) moves closer to the side cover plate (24) in the horizontal direction until the moving iron core (22) comes into contact with the side cover plate (24) in the horizontal direction.

9. The relay according to any one of claims 1-5, wherein the commutation assembly (4) further comprises: a baffle plate (44), the baffle plate (44) is mounted on the first push rod (41); Among them, when the commutation member (43) is in the vertical state, the baffle plate (44) is arranged on the side of the commutation member (43) close to the coil assembly (2) in the horizontal direction.

10. The relay according to any one of claims 1-5, wherein the bottom of the first accommodation chamber (111) is open; the housing assembly (1) further comprises: a base (12), the base (12) is mounted at the opening to separate the first accommodation chamber (111) from the outside.

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