relay

Abstract

The application discloses a relay, comprising a base and a magnetic circuit part. The base has a first accommodating groove; the magnetic circuit part comprises an armature assembly and a coil structure, the armature assembly is movably arranged in the first accommodating groove along an X-axis direction, the coil structure is connected to the base and covers at least part of a slot opening of the first accommodating groove, so as to limit the armature assembly in the first accommodating groove along a Z-axis direction; wherein the coil structure is configured to drive the armature assembly to move relative to the base along the X-axis direction in response to an input signal, and the X-axis direction is perpendicular to the Z-axis direction.

Description

Technical Field

[0001] This application relates to the field of electrical control device technology, and more specifically, to a relay. Background Technology

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is commonly used in automatic control circuits. Essentially, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays a role in automatic adjustment, safety protection, and circuit switching in circuits.

[0003] A relay uses a pulsed electrical signal to trigger a coil assembly, which drives the armature assembly to move, thereby influencing the contact parts to open and close the contacts. However, the assembly methods of the armature assembly in existing relays suffer from poor convenience and low assembly efficiency, hindering the improvement of overall relay performance and the advancement of mass production. Therefore, it is urgent to optimize the assembly structure of the armature assembly to address the aforementioned technical challenges. Summary of the Invention

[0004] This application provides a relay to optimize the assembly structure of the armature assembly.

[0005] The relay in this embodiment includes: The base has a first receiving groove; The magnetic circuit includes an armature assembly and a coil structure. The armature assembly is movably disposed in the first receiving groove along the X-axis direction. The coil structure is connected to the base and covers at least a portion of the opening of the first receiving groove to limit the armature assembly in the first receiving groove in the Z-axis direction. The coil structure is configured to drive the armature assembly to move relative to the base along the X-axis direction in response to an input signal, wherein the X-axis direction is perpendicular to the Z-axis direction.

[0006] According to some embodiments of this application, the base further has a second receiving groove for accommodating the contact portion, and the base further has a through hole connecting the first receiving groove and the second receiving groove; The armature assembly has a drive arm that passes through the through hole and extends into the second receiving groove, and is connected to the contact portion. The armature assembly is used to drive the contact portion to switch between a first state and a second state.

[0007] According to some embodiments of this application, along the Z-axis direction, the opening of the first receiving groove faces opposite directions to the opening of the second receiving groove, and the through hole is formed on the bottom wall of the groove shared by the first receiving groove and the second receiving groove.

[0008] According to some embodiments of this application, the armature assembly includes an armature, a permanent magnet, and an insulating member integrally formed with the armature and the permanent magnet. The insulating member has a plurality of first protrusions on one side facing the bottom wall of the first receiving groove, and each first protrusion is used to slidably contact the bottom wall of the first receiving groove.

[0009] According to some embodiments of this application, the first protrusion has a first arcuate surface that can slidably contact the bottom wall of the first receiving groove.

[0010] According to some embodiments of this application, the armature assembly includes an armature, a permanent magnet, and an insulating member integrally formed with the armature and the permanent magnet. The insulating member has second protrusions on both sides along the Y-axis, and each second protrusion is used to slidably contact the sidewall of the first receiving groove.

[0011] According to some embodiments of this application, the second protrusion has a second arcuate surface that can slidably contact the sidewall of the first receiving groove.

[0012] According to some embodiments of this application, the coil structure includes a coil frame corresponding to the slot of the first receiving groove in the Z-axis direction, a yoke, and a core located inside the coil frame and fixedly connected to the yoke. The coil frame is provided with the yoke at both ends in the X-axis direction, and each yoke is fixedly connected to the base. The armature assembly is provided with a suction part at both ends in the X-axis direction, and each suction part can magnetically attract the corresponding yoke.

[0013] According to some embodiments of this application, at least a portion of the coil holder is located within the first receiving groove for limiting the armature assembly within the first receiving groove in the Z-axis direction.

[0014] According to some embodiments of this application, the coil frame includes a middle part and a winding part, the two ends of the middle part along the X-axis direction are respectively connected to the winding part, the core part is respectively passed through each of the winding parts, and the middle part and each of the winding parts form a third receiving groove. The armature assembly includes a base and a first protrusion, the first protrusion being disposed on the side of the base facing the coil frame, and at least a portion of the first protrusion being located within the third receiving groove, the intermediate portion being used to limit the armature assembly within the first receiving groove in the Z-axis direction.

[0015] According to some embodiments of this application, the middle portion is provided with a groove on the side facing the armature assembly, and the armature assembly further includes a second protrusion. The second protrusion is provided on the side of the first protrusion facing away from the base. At least a portion of the second protrusion is located in the groove. The groove wall is provided opposite to the first receiving groove in the Y-axis direction to limit the armature assembly in the first receiving groove in the Z-axis direction.

[0016] According to some embodiments of this application, the groove wall of the groove has a third arcuate surface on the side near the first protrusion for sliding contact with the first protrusion.

[0017] According to some embodiments of this application, the first receiving groove is provided with a plug-in groove at the position corresponding to each of the yoke iron members, and the yoke iron member is interference-fitted with the corresponding plug-in groove.

[0018] According to some embodiments of this application, the first receiving groove has a first groove wall arranged opposite to each other along the X-axis and a second groove wall arranged opposite to each other along the Y-axis. The inner wall surface of each second groove wall is provided with a rib near the first groove wall. The first groove wall, the second groove wall and the rib form the insertion groove.

[0019] According to some embodiments of this application, the yoke is provided with protrusions on both sides along the Y-axis, and the protrusions are limited and matched with the sidewall of the first receiving groove.

[0020] According to some embodiments of this application, the relay further includes a housing connected to the base and forming a cavity for accommodating the magnetic circuit portion, and the surface of the housing facing the cavity is provided with a pressing portion for pressing against the yoke.

[0021] According to some embodiments of this application, the coil structure includes a coil frame, a yoke, and a core. The coil frame has a first winding portion and a second winding portion spaced apart along the X-axis. The first winding portion and the second winding portion are respectively provided with a core. The yoke is provided on the side of the first winding portion and the second winding portion that are opposite to each other. Each yoke is connected to the corresponding core. The outer periphery of the first winding portion and the second winding portion is respectively wound with windings. The armature assembly includes an armature and a permanent magnet, the permanent magnet being fixed to the side of the armature facing the coil frame; Wherein, the magnetic fields generated by the outer circumference windings of the first winding portion and the outer circumference windings of the second winding portion have the same direction when energized.

[0022] According to some embodiments of this application, the armature assembly further includes a magnetic conductor, the armature being fixed to the first magnetic pole of the permanent magnet, the magnetic conductor being fixed to the second magnetic pole of the permanent magnet, the first magnetic pole and the second magnetic pole being arranged in opposite positions and opposite polarities, and the magnetic conductor being located between the two cores.

[0023] According to some embodiments of this application, the coil frame further includes an intermediate portion connected between the first winding portion and the second winding portion, the intermediate portion having a groove on the side facing the armature, and at least a portion of the magnetic conductor being accommodated in the groove.

[0024] According to some embodiments of this application, the magnetization direction of the permanent magnet is parallel to the Z-axis direction.

[0025] An embodiment of the above application has at least the following advantages or beneficial effects: The relay of this application embodiment, by placing the armature assembly in the first receiving groove of the base and having the coil structure cover at least a portion of the opening of the first receiving groove, thereby limiting the armature assembly in the first receiving groove in the Z-axis direction, allows the armature assembly to be limited in the first receiving groove simply by connecting the base and the coil structure during the assembly process. This does not affect the movement of the armature assembly in the X-axis direction, and can limit the armature assembly in the Z-axis direction. This not only ensures the reliability of the armature assembly movement, but also simplifies the assembly process of the armature assembly and improves assembly efficiency. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0027] Figure 1 This is a schematic diagram of a relay according to an embodiment of this application.

[0028] Figure 2 yes Figure 1 A schematic diagram of its breakdown.

[0029] Figure 3 yes Figure 2 A schematic diagram of the base.

[0030] Figure 4 It is an omission Figure 1 Top view of the shell inside.

[0031] Figure 5 It is along Figure 4A cross-sectional view along the BB section line.

[0032] Figure 6 yes Figure 3 A schematic diagram of the base from another perspective.

[0033] Figure 7 This is a three-dimensional schematic diagram of the armature assembly.

[0034] Figure 8 This is a bottom view of the armature assembly.

[0035] Figure 9 This is a schematic diagram showing the connection between the core and the yoke.

[0036] Figure 10 This is a three-dimensional schematic diagram of the coil frame.

[0037] Figure 11 It is along Figure 1 A cross-sectional view along section line AA.

[0038] Figure 12 It is along Figure 11 A cross-sectional view with the CC section line in the middle.

[0039] Figure 13 This is a schematic diagram of the casing.

[0040] Figure 14 This is a schematic diagram of the magnetic attraction between the armature assembly and the first yoke in one embodiment of this application.

[0041] Figure 15 This is a schematic diagram of the magnetic attraction between the armature assembly and the second yoke in one embodiment of this application.

[0042] The reference numerals in the attached figures are explained as follows: 100. Magnetic circuit section; 100a. Coil structure; 110. Armature assembly; 110a. Base; 110b. First protrusion; 110c. Second protrusion; 111. Armature; 1111. Activation part; 1111a. First activation part; 1111b. Second activation part; 1121. Permanent magnet; 113. Magnetic conductor; 116. Insulator; 1161. First protrusion; 1161a. First arc surface; 1162. Second protrusion; 1162a. Second arc surface; 117. Drive arm; 121. Core; 123. Yoke; 1231. First yoke; 1232. Second yoke; 1234. Protrusion; 200. Coil lead piece; 300, base; 301, insertion groove; 302, first receiving groove; 3021, first groove wall; 3022, second groove wall; 3023, protruding rib; 303, second receiving groove; 304, mounting part; 309, through hole; 400, Coil frame; 410, Middle section; 411, Groove; 4111, Groove wall; 4111a, Third arc surface; 420, Winding section; 420a, First winding section; 420b, Second winding section; 421, Through hole; 422, First winding; 423, Second winding; 430, Third receiving groove; 440, Lead-out section; 500, housing; 501, cavity; 510, pressing part; 511, pressing block; 600, Contact portion; 610, Moving part; 611, Slot; 620, Contact assembly; 621, Moving contact; 621a, First moving contact; 621b, Second moving contact; 622, Stationary contact; 622a, Stationary contact group; 700, sealing plate. Detailed Implementation

[0043] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0044] It is understood that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0045] For ease of explanation, the terms "X-axis direction," "Y-axis direction," and "Z-axis direction" are used in the specific embodiments of this application. These terms simply refer to a feature having one of these directions being perpendicular to a feature having the other direction; they do not require implementation according to the "X-axis direction," "Y-axis direction," and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction, Y-axis direction, and Z-axis direction are mutually perpendicular.

[0046] Unless otherwise specified, the terms “first,” “second,” or “third,” etc., in the claims and description are used to distinguish different objects and not to describe a particular order.

[0047] Unless otherwise specified, in the claims and description, the terms “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “back,” “left,” “right,” etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation.

[0048] like Figure 1 and Figure 2 As shown, the relay in this embodiment includes a base 300, a housing 500, a magnetic circuit portion 100, and a contact portion 600. Both the magnetic circuit portion 100 and the contact portion 600 are mounted on the base 300. The magnetic circuit portion 100 and the contact portion 600 are driven together. The magnetic circuit portion 100 is configured to drive the contact portion 600 to switch between a first state and a second state in response to an input signal.

[0049] Optionally, the length direction of the base 300 is the X-axis direction, the width direction of the base 300 is the Y-axis direction, and the height direction of the base 300 is the Z-axis direction.

[0050] like Figure 2 and Figure 3 As shown, the base 300 has a first receiving groove 302 and a second receiving groove 303. At least a portion of the magnetic circuit portion 100 is disposed in the first receiving groove 302. The housing 500 is connected to the base 300 and forms a cavity 501 for accommodating the magnetic circuit portion 100.

[0051] The contact portion 600 is disposed in the second receiving groove 303. The relay also includes a sealing plate 700, which is connected to the base 300 to limit the contact portion 600 in the second receiving groove 303.

[0052] like Figure 2 As shown, the contact portion 600 includes a movable member 610 and at least one contact assembly 620. A magnetic circuit portion 100 is drivenly connected to the movable member 610, and the magnetic circuit portion 100 can drive the movable member 610 to reciprocate along the X-axis. The contact assembly 620 includes a movable contact 621 and a stationary contact 622. The movable contact 621 is connected to the movable member 610 and moves with the movable member 610. A mounting portion 304 is provided in the second receiving groove 303 of the base 300, and the stationary contact 622 is mounted in the mounting portion 304. When the movable member 610 moves along the X-axis, it can drive the movable contact 621 to move, so that the movable contact 621 contacts or separates from the stationary contact 622, thereby switching the contact portion 600 between a first state and a second state.

[0053] Optionally, the contact component 620 can be any of the following: normally open contact, normally closed contact, or changeover contact.

[0054] Taking a contact component as a changeover contact as an example, such as Figure 2 As shown, the contact assembly 620 includes two moving contacts 621 and two stationary contact groups 622a, with each moving contact 621 corresponding to one of the two stationary contact groups 622a. The two moving contacts 621 are spaced apart along the X-axis, and each stationary contact group 622a includes two stationary contacts 622 spaced apart along the Y-axis. The two ends of each moving contact 621 along the Y-axis are in contact with or separate from the two stationary contacts 622 of the corresponding stationary contact group 622a.

[0055] For ease of explanation, the two moving contacts 621 included in the contact assembly 620 are defined as a first moving contact 621a and a second moving contact 621b, respectively. When the contact portion 600 is in the first state, the two ends of the first moving contact 621a along the Y-axis direction are in contact with the two stationary contacts 622 of the corresponding stationary contact group 622a, while the two ends of the second moving contact 621b along the Y-axis direction are separated from the two stationary contacts 622 of the corresponding stationary contact group 622a. When the contact portion 600 is in the second state, the two ends of the first moving contact 621a along the Y-axis direction are separated from the two stationary contacts 622 of the corresponding stationary contact group 622a, while the two ends of the second moving contact 621b along the Y-axis direction are in contact with the two stationary contacts 622 of the corresponding stationary contact group 622a.

[0056] Optionally, the contact portion 600 may include one or more contact components 620. When there are multiple contact components 620, the multiple contact components 620 are arranged at intervals along the X-axis direction.

[0057] In one implementation, such as Figure 2 As shown, the number of contact components 620 is three, but this is not a limitation.

[0058] like Figure 4 and Figure 5 As shown, the magnetic circuit portion 100 includes an armature assembly 110 and a coil structure 100a. The armature assembly 110 is movably disposed within a first receiving groove 302 along the X-axis direction. The coil structure 100a is connected to the base 300 and covers at least a portion of the opening of the first receiving groove 302 to limit the armature assembly 110 within the first receiving groove 302 in the Z-axis direction. The coil structure 100a is configured to drive the armature assembly 110 to move relative to the base 300 along the X-axis direction in response to an input signal. The armature assembly 110 is connected to a moving member 610, and when the armature assembly 110 moves along the X-axis direction, the armature assembly 110 can drive the moving member 610 to move along the X-axis direction.

[0059] In this embodiment, by placing the armature assembly 110 in the first receiving groove 302 of the base 300 and covering at least a portion of the opening of the first receiving groove 302 with the coil structure 100a, the armature assembly 110 is limited within the first receiving groove 302 in the Z-axis direction. This design allows the armature assembly 110 to be limited within the first receiving groove 302 simply by connecting the base 300 and the coil structure 100a during the assembly process. This does not affect the movement of the armature assembly 110 in the X-axis direction and allows for the limitation of the armature assembly 110 in the Z-axis direction. This not only ensures the reliability of the movement of the armature assembly 110 but also simplifies the assembly process of the armature assembly 110 and improves the assembly efficiency.

[0060] like Figure 6 and Figure 7 As shown, the base 300 also has a through hole 309 connecting the first receiving groove 302 and the second receiving groove 303. The armature assembly 110 has a drive arm 117, which passes through the through hole 309 and extends into the second receiving groove 303, and is connected to the moving part 610 of the contact portion 600. The armature assembly 110 is used to drive the contact portion 600 to switch between the first state and the second state.

[0061] In one embodiment, along the Z-axis direction, the opening of the first receiving groove 302 faces the opposite direction to the opening of the second receiving groove 303, and the through hole 309 is formed in the bottom wall of the groove shared by the first receiving groove 302 and the second receiving groove 303.

[0062] In this embodiment, by forming a through hole 309 on the bottom wall of the groove shared by the first receiving groove 302 and the second receiving groove 303, the drive arm 117 of the armature assembly 110 can pass through the through hole 309 and connect with the movable part 610 of the contact portion 600 located in the second receiving groove 303. Thus, the armature assembly 110 and the contact portion 600 are located on opposite sides of the base 300, and the contact portion 600 will not affect the assembly of the armature assembly 110 during the assembly process.

[0063] In one exemplary embodiment, such as Figure 2 As shown, the movable part 610 is provided with a slot 611, and the drive arm 117 of the armature assembly 110 passes through the through hole 309 and is inserted into the slot 611 of the movable part 610.

[0064] like Figure 7 As shown, the armature assembly 110 includes an armature 111, a permanent magnet 1121, and an insulating member 116 integrally formed with the armature 111 and the permanent magnet 1121.

[0065] Optionally, the insulating component 116 is integrally formed with the armature component 111 and the permanent magnet 1121 by injection molding.

[0066] In one embodiment, the drive arm 117 and the insulating member 116 are integrally formed. For example, in a single injection molding process, the armature 111, the permanent magnet 1121, the insulating member 116 and the drive arm 117 are integrally formed.

[0067] Optionally, there are multiple drive arms 117, which are spaced apart along the X-axis.

[0068] like Figure 7 As shown, in one embodiment, the permanent magnet 1121 is located on one side of the thickness direction of the armature 111, and the drive arm 117 is located on the other side of the thickness direction of the armature 111.

[0069] Optionally, the armature assembly 110 further includes a magnetic guide 113, which is located on the side of the permanent magnet 1121 facing away from the armature 111. The magnetic guide 113 is in direct contact with the permanent magnet 1121, and the permanent magnet 1121 is in direct contact with the armature 111.

[0070] Among them, the armature 111, permanent magnet 1121, magnetic conductor 113 and insulating component 116 are integrally formed.

[0071] In one embodiment, the magnetization direction of the permanent magnet 1121 is parallel to the Z-axis direction. The permanent magnet 1121 has a first magnetic pole on one side along the Z-axis direction and a second magnetic pole on the other side along the Z-axis direction, with the first and second magnetic poles having opposite polarities. A conductor 113 is disposed on the side of the permanent magnet 1121 where the first magnetic pole is located, and an armature 111 is disposed on the side of the permanent magnet 1121 where the second magnetic pole is located.

[0072] like Figure 7 and Figure 8 As shown, the insulating member 116 has a plurality of first protrusions 1161 on one side facing the bottom wall of the first receiving groove 302, and each first protrusion 1161 is used to slide in contact with the bottom wall of the first receiving groove 302.

[0073] In this embodiment, the bottom wall of the first receiving groove 302 and the armature assembly 110 are slidably contacted by a plurality of first protrusions 1161, which reduces the contact area and thereby reduces the friction of the armature assembly 110 moving along the X-axis, making the movement of the armature assembly 110 smoother and avoiding jamming.

[0074] In one embodiment, the first protrusion 1161 has a first arcuate surface 1161a that can slidably contact the bottom wall of the first receiving groove 302. The slidable contact between the first arcuate surface 1161a and the bottom wall of the first receiving groove 302 can further reduce the friction force when the armature assembly 110 moves.

[0075] Optionally, the first arc surface 1161a includes a sphere.

[0076] like Figure 7 and Figure 8 As shown, the insulating member 116 has a second protrusion 1162 on both sides along the Y-axis, and each second protrusion 1162 is used to slide in contact with the side wall of the first receiving groove 302.

[0077] In this embodiment, the sidewall of the first receiving groove 302 and the armature assembly 110 are slidably contacted by the second protrusion 1162, which reduces the contact area and thus reduces the friction of the armature assembly 110 moving along the X-axis, making the movement of the armature assembly 110 smoother and avoiding jamming.

[0078] In one embodiment, the second protrusion 1162 has a second arcuate surface 1162a that slidably contacts the sidewall of the first receiving groove 302. The slidable contact between the second arcuate surface 1162a and the sidewall of the first receiving groove 302 can further reduce the frictional force of the armature assembly 110 movement.

[0079] Optionally, the second circular arc surface 1162a includes a sphere.

[0080] like Figure 4 , Figure 5 and Figure 9 As shown, the coil structure 100a includes a coil frame 400 corresponding to the slot of the first receiving groove 302 in the Z-axis direction, a yoke 123, and a core 121 located within the coil frame 400 and fixedly connected to the yoke 123. The coil frame 400 has yokes 123 at both ends along the X-axis direction, defined as a first yoke 1231 and a second yoke 1232. Each yoke 123 is fixedly connected to the base 300. The armature assembly 110 has attraction portions 1111 at both ends along the X-axis direction, defined as a first attraction portion 1111a and a second attraction portion 1111b. Each attraction portion 1111 can magnetically engage with the corresponding yoke 123. The portion of the armature 111 exposed outside the insulating member 116 is the attraction portion 1111.

[0081] In one embodiment, the first attracting part 1111a can be magnetically attracted to the first yoke 1231, and the second attracting part 1111b can be magnetically attracted to the second yoke 1232.

[0082] like Figure 10 As shown, the coil frame 400 includes a middle part 410 and a winding part 420. The two ends of the middle part 410 along the X-axis are respectively connected to the winding part 420, and a core part 121 is respectively inserted into each winding part 420. The winding part 420 is used to wind enameled wire.

[0083] Each winding section 420 is provided with a through hole 421, which penetrates the winding section 420 along the X-axis direction. The core 121 passes through the through hole 421.

[0084] In one embodiment, the middle portion 410 has a groove 411 on the side facing the armature 111, and at least a portion of the magnetic conductor 113 is accommodated in the groove 411 so that the magnetic conductor 113 is located between the two core portions 121.

[0085] like Figure 14 and Figure 15 As shown, for ease of explanation, the winding portions 420 at both ends of the middle portion 410 along the X-axis are respectively a first winding portion 420a and a second winding portion 420b, and each of the first winding portion 420a and the second winding portion 420b has a core portion 121 inside. A first winding 422 is wound around the outer periphery of the first winding portion 420a, and a second winding 423 is wound around the outer periphery of the second winding portion 420b. The magnetic fields generated by the first winding 422 and the second winding 423 are in the same direction when energized. A first yoke 1231 is provided on the side of the first winding portion 420a away from the second winding portion 420b, and a second yoke 1232 is provided on the side of the second winding portion 420b away from the first winding portion 420a.

[0086] like Figure 14 As shown, the polarity of the permanent magnet 1121 facing the armature 111 is defined as the N pole, and the polarity of the permanent magnet 1121 facing away from the armature 111 is defined as the S pole.

[0087] like Figure 14 As shown, the first winding 422 generates a magnetic field when energized, with the polarity of the end near the second winding 423 being N and the polarity of the end away from the second winding 423 being S. The second winding 423 also generates a magnetic field when energized, with the polarity of the end near the first winding 422 being S and the polarity of the end away from the first winding 422 being N. The armature assembly 110 is in the first position, at which time the permanent magnet 1121 is magnetically attracted to the core 121 surrounded by the first winding 422, and the first attracting part 1111a is in contact with and magnetically attracted to the first yoke 1231, and the magnetic conductor 113 is magnetically attracted to the core 121 surrounded by the first winding 422.

[0088] like Figure 15As shown, when the energizing direction of the first winding 422 and the second winding 423 changes, the polarity of the end of the first winding 422 closer to the second winding 423 changes from N to S, and the polarity of the end farther from the second winding 423 changes from S to N. Similarly, the polarity of the end of the second winding 423 closer to the first winding 422 changes from S to N, and the polarity of the end farther from the first winding 422 changes from N to S. Due to the change in polarity at both ends of the first winding 422 and the second winding 423, the force between the first winding 422 and the permanent magnet 1121 changes from attraction to repulsion, and the force between the first engaging part 1111a and the first yoke 1231 changes from attraction to repulsion. Meanwhile, the attraction between the second winding 423 and the permanent magnet 1121 increases, and the attraction between the second engaging part 1111b and the second yoke 1232 also increases. Driven by both attraction and repulsion, the armature assembly 110 switches to the second position. At this position, the second engaging part 1111b contacts and magnetically engages with the second yoke 1232, and the permanent magnet 1121 magnetically engages with the core 121 surrounded by the second winding 423, while the magnetic conductor 113 magnetically engages with the core 121 surrounded by the second winding 423. Therefore, by changing the energizing direction of the first winding 422 and the second winding 423, the armature assembly 110 can reciprocate along the X-axis.

[0089] It is evident that regardless of whether the armature assembly 110 is in the first or second position, it can form at least three magnetic pole faces. Therefore, compared to the related art where the armature assembly forms a single magnetic pole face when in the held state, the relay implemented in this application has multiple magnetic pole faces in the magnetic circuit formed when the armature assembly 110 is in the held state. The attraction between the coil assembly and the armature assembly 110 is greater, resulting in a larger holding force in the magnetic circuit structure, improving shock resistance, and preventing the relay from accidentally opening or closing.

[0090] In addition, the magnetic conductor 113 is located between the two cores 121. On the one hand, the direction of the attraction between the magnetic conductor 113 and the corresponding core 121 is basically along the X-axis, which is more conducive to improving the holding force. On the other hand, the magnetic conductor 113 can guide the magnetic field in the air that was originally located between the two cores 121 into the magnetic circuit, avoid magnetic leakage, increase the magnetic flux in the magnetic circuit, and thus increase the magnetic attraction between the magnetic conductor 113 and the core 121, further increasing the holding force on the armature assembly 110. Furthermore, the magnetic conductor 113 increases the magnetic pole surface, thereby increasing the attraction during the switching process, which helps to improve the switching speed.

[0091] Furthermore, when the first winding 422 and the second winding 423 are negatively energized, for example, the armature assembly 110 is... Figure 14 Position towards Figure 15During the position switching, the magnetic field generated by the energized first winding 422 is opposite to the magnetic field of the permanent magnet 1121. Therefore, a repulsive force is formed between the permanent magnet 1121 and the core 121 surrounded by the first winding 422. The component of this repulsive force along the X-axis helps drive the armature assembly 110 to move to the second position. Simultaneously, the magnetic field generated by the energized second winding 423 is in the same direction as the magnetic field of the permanent magnet 1121. At this time, an attractive force is formed between the permanent magnet 1121 and the core 121 surrounded by the second winding 423. The component of this attractive force along the X-axis also helps drive the armature assembly 110 to move to the second position. Therefore, during the switching of the armature assembly 110, it is simultaneously subjected to both repulsive and attractive forces in the same direction, further accelerating the switching speed of the armature assembly 110.

[0092] like Figure 9 As shown, in one embodiment, each yoke 123 can connect to multiple cores 121.

[0093] In other embodiments, each yoke 123 may be connected to a core 121, and the cross-sectional shape of the core 121 may be circular, rectangular, elliptical, etc., which is not particularly limited in this application.

[0094] like Figure 5 As shown, at least a portion of the coil holder 400 is located within the first receiving groove 302 for limiting the armature assembly 110 within the first receiving groove 302 in the Z-axis direction.

[0095] In this embodiment, at least a portion of the coil holder 400 is disposed in the first receiving groove 302. On the one hand, this ensures that the coil holder 400 limits the armature assembly 110 in the Z-axis direction. On the other hand, it reduces the size of the relay in the Z-axis direction, which is beneficial for product miniaturization design.

[0096] like Figure 7 As shown, the armature assembly 110 includes a base 110a, a first protrusion 110b, and a second protrusion 110c. The first protrusion 110b is located on the side of the base 110a facing the coil frame 400, and the second protrusion 110c is located on the side of the first protrusion 110b facing away from the base 110a.

[0097] Optionally, the base 110a includes an armature 111, the first protrusion 110b includes a permanent magnet 1121, and the second protrusion 110c includes a magnetic conductor 113.

[0098] like Figure 5 and Figure 10 As shown, the middle portion 410 and each winding portion 420 form a third receiving groove 430; at least a portion of the first protrusion 110b is located in the third receiving groove 430, and the middle portion 410 is used to limit the armature assembly 110 in the first receiving groove 302 in the Z-axis direction.

[0099] Specifically, the middle portion 410 can slidably contact the first protrusion 110b, so that the middle portion 410 and the bottom wall of the first receiving groove 302 together limit the armature assembly 110 in the first receiving groove 302 in the Z-axis direction, preventing the armature assembly 110 from moving relative to the base 300 in the Z-axis direction.

[0100] like Figure 7 and Figure 10 As shown, the middle portion 410 has a groove 411 on the side facing the armature assembly 110, and at least a portion of the second protrusion 110c is located in the groove 411. The groove wall 4111 of the groove 411 is arranged opposite to each other along the Y-axis direction to limit the armature assembly 110 in the first receiving groove 302 in the Z-axis direction.

[0101] Specifically, the groove wall 4111 of the groove 411 can slidably contact the first protrusion 110b.

[0102] In this embodiment, by providing a groove 411 on the middle portion 410 for accommodating the second protrusion 110c, the structure of the coil frame 400 and the armature assembly 110 after assembly in the Z-axis direction is more compact, further reducing the size of the relay in the Z-axis direction.

[0103] like Figure 10 As shown, the groove wall 4111 of the groove 411 has a third arcuate surface 4111a on the side near the first protrusion 110b for sliding contact with the first protrusion 110b.

[0104] In this embodiment, by designing the side of the groove wall 4111 of the groove 411 close to the first protrusion 110b to have a third arc surface 4111a, the friction between the armature assembly 110 and the groove wall 4111 of the groove 411 can be significantly reduced when the armature assembly 110 moves along the X-axis direction, making the movement of the armature assembly 110 smoother and avoiding jamming.

[0105] like Figure 5 and Figure 6 As shown, the first receiving groove 302 has a corresponding insertion groove 301 at the position of each yoke iron 123, and the yoke iron 123 is interference-fitted with the corresponding insertion groove 301.

[0106] On the one hand, the interference fit can improve the installation accuracy of the yoke 123 and the base 300, thereby ensuring the positional accuracy of the armature assembly 110 moving along the X-axis. On the other hand, the holding force generated by the interference fit can make the yoke 123 and the base 300 firmly connected with high bonding strength. Under the vibration and impact environment during the operation of the relay, it is not easy to loosen or shift, which significantly improves the stability of the overall structure of the relay and reduces the risk of failure caused by loose parts.

[0107] like Figure 6 As shown, the first receiving groove 302 has a first groove wall 3021 arranged opposite to each other along the X-axis and a second groove wall 3022 arranged opposite to each other along the Y-axis. The inner wall surface of each second groove wall 3022 and near the position of the first groove wall 3021 are provided with a protruding rib 3023. The first groove wall 3021, the second groove wall 3022 and the protruding rib 3023 form an insertion groove 301.

[0108] Of course, in other embodiments, if the wall thickness of the second groove wall 3022 is thick enough, the rib 3023 may not be formed on the inner wall surface of the second groove wall 3022, but a slot may be formed on the inner side of the second groove wall 3022, and the yoke 123 may be inserted into the slot in an interference fit manner.

[0109] like Figure 9 As shown, the yoke 123 has protrusions 1234 on both sides along the Y-axis, and the protrusions 1234 are limited to the groove sidewall of the first receiving groove 302.

[0110] Specifically, when assembling the yoke 123, the yoke 123 is inserted into the insertion groove 301 from top to bottom. When the protrusion 1234 contacts the top surface of the second groove wall 3022 of the first receiving groove 302, it indicates that the yoke 123 has been inserted into place.

[0111] Therefore, in this embodiment, by providing protrusions 1234 on both sides of the yoke 123 along the Y-axis, the insertion depth of the yoke 123 can be precisely controlled.

[0112] like Figure 11 to 13 As shown, the surface of the housing 500 facing the cavity 501 is provided with a pressing part 510 for pressing against the yoke 123.

[0113] In this embodiment, by providing a pressing part 510 on the housing 500 for pressing the yoke 123, the pressing part 510 can press down the yoke 123 after the housing 500 and the base 300 are assembled, thereby further ensuring the stability of the connection between the yoke 123 and the base 300.

[0114] In one exemplary embodiment, the housing 500 includes two pressing portions 510 for pressing against two yoke members 123 respectively. One pressing portion 510 is elongated and extends along the Y-axis direction for pressing against one of the yoke members 123. The other pressing portion 510 includes two pressure blocks 511 spaced apart along the Y-axis direction for pressing against the other yoke member 123. The space between the two pressure blocks 511 is used to avoid the lead-out portion 440 of the coil frame 400 (e.g., ...). Figure 4 and Figure 12The lead-out section 440 is used to connect the coil lead-out piece 200.

[0115] In one embodiment, the relay of this application embodiment can be assembled as follows: First, the armature assembly 110 is installed into the first receiving groove 302 of the base 300, so that the drive arm 117 of the armature assembly 110 is inserted into the corresponding through hole 309. Then, the core 121 and the yoke 123 are assembled to form a pre-assembled part. Then, the core 121 is inserted into the through hole 421 of the coil frame 400 to form the coil structure 100a. Next, the yoke 123 is installed into the insertion groove 301, so that part of the coil frame 400 is installed into the first receiving groove 302, and the second protrusion 110c of the armature assembly 110 is inserted into the groove 411 of the coil frame 400. Then, the contact part 600 is installed into the second receiving groove 303 of the base 300, so that the drive arm 117 of the armature assembly 110 is inserted into the slot 611 of the moving part 610 of the contact part 600. Finally, the housing 500 is connected to the base 300 so that the pressing part 510 of the housing 500 presses against the yoke 123.

[0116] In summary, the relays of the embodiments of this application have at least the following advantages and beneficial effects: The relay of this application embodiment, by placing the armature assembly 110 in the first receiving groove 302 of the base 300 and having the coil structure 100a cover at least a portion of the opening of the first receiving groove 302, limits the armature assembly 110 within the first receiving groove 302 in the Z-axis direction. This design allows the armature assembly 110 to be limited within the first receiving groove 302 simply by connecting the base 300 and the coil structure 100a during the assembly process. This does not affect the movement of the armature assembly 110 in the X-axis direction and allows for limiting the armature assembly 110 in the Z-axis direction. This not only ensures the reliability of the movement of the armature assembly 110 but also simplifies the assembly process of the armature assembly 110 and improves assembly efficiency.

[0117] Furthermore, based on the structural design of the magnetic circuit section 100 described above, and with the armature assembly 110 being limited in the Y-axis and Z-axis directions, the armature assembly 110 can be precisely moved back and forth along the X-axis direction, thereby achieving reliable switching of the relay.

[0118] It is understood that the various embodiments / implementations provided in this application can be combined with each other without creating contradictions, and will not be described one by one here.

[0119] In the embodiments of this application, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0120] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the claims. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0121] The above are merely preferred embodiments of the application examples and are not intended to limit the application examples. For those skilled in the art, the application examples can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the application examples should be included within the protection scope of the application examples.

Claims

1. A relay, characterized in that, include: The base has a first receiving groove; The magnetic circuit includes an armature assembly and a coil structure. The armature assembly is movably disposed in the first receiving groove along the X-axis direction. The coil structure is connected to the base and covers at least a portion of the opening of the first receiving groove to limit the armature assembly in the first receiving groove in the Z-axis direction. The coil structure is configured to drive the armature assembly to move relative to the base along the X-axis direction in response to an input signal, wherein the X-axis direction is perpendicular to the Z-axis direction.

2. The relay according to claim 1, characterized in that, The base also has a second receiving groove for accommodating the contact portion, and the base also has a through hole connecting the first receiving groove and the second receiving groove; The armature assembly has a drive arm that passes through the through hole and extends into the second receiving groove, and is connected to the contact portion. The armature assembly is used to drive the contact portion to switch between a first state and a second state.

3. The relay according to claim 2, characterized in that, Along the Z-axis, the opening of the first receiving groove faces opposite directions to the opening of the second receiving groove, and the through hole is formed on the bottom wall of the groove shared by the first receiving groove and the second receiving groove.

4. The relay according to claim 1, characterized in that, The armature assembly includes an armature, a permanent magnet, and an insulating component integrally formed with the armature and the permanent magnet. The insulating component has a plurality of first protrusions on one side facing the bottom wall of the first receiving groove, and each first protrusion is used to slide in contact with the bottom wall of the first receiving groove.

5. The relay according to claim 4, characterized in that, The first protrusion has a first arcuate surface that can slidably contact the bottom wall of the first receiving groove.

6. The relay according to claim 1, characterized in that, The armature assembly includes an armature, a permanent magnet, and an insulating component integrally formed with the armature and the permanent magnet. The insulating component has second protrusions on both sides along the Y-axis, and each second protrusion is used to slidably contact the sidewall of the first receiving groove.

7. The relay according to claim 6, characterized in that, The second protrusion has a second arcuate surface that can slidably contact the sidewall of the first receiving groove.

8. The relay according to claim 1, characterized in that, The coil structure includes a coil frame corresponding to the slot of the first receiving groove in the Z-axis direction, a yoke, and a core located inside the coil frame and fixedly connected to the yoke. The coil frame is provided with the yoke at both ends in the X-axis direction. Each yoke is fixedly connected to the base. The armature assembly is provided with a magnetic attraction part at both ends in the X-axis direction. Each magnetic attraction part can magnetically attract the corresponding yoke.

9. The relay according to claim 8, characterized in that, At least a portion of the coil frame is located within the first receiving groove for limiting the armature assembly within the first receiving groove in the Z-axis direction.

10. The relay according to claim 9, characterized in that, The coil frame includes a middle part and a winding part. The two ends of the middle part along the X-axis are respectively connected to the winding part. The core part is respectively inserted into each winding part. The middle part and each winding part form a third receiving groove. The armature assembly includes a base and a first protrusion, the first protrusion being disposed on the side of the base facing the coil frame, and at least a portion of the first protrusion being located within the third receiving groove, the intermediate portion being used to limit the armature assembly within the first receiving groove in the Z-axis direction.

11. The relay according to claim 10, characterized in that, The middle portion has a groove on the side facing the armature assembly. The armature assembly also includes a second protrusion. The second protrusion is located on the side of the first protrusion facing away from the base. At least a portion of the second protrusion is located in the groove. The groove wall is arranged opposite to the first receiving groove in the Y-axis direction to limit the armature assembly in the first receiving groove in the Z-axis direction.

12. The relay according to claim 11, characterized in that, The groove wall near the first protrusion has a third arcuate surface for sliding contact with the first protrusion.

13. The relay according to claim 8, characterized in that, The first receiving groove is provided with a plug-in groove at the position corresponding to each of the yoke iron parts, and the yoke iron parts are interference-fitted with the corresponding plug-in grooves.

14. The relay according to claim 13, characterized in that, The first receiving groove has a first groove wall arranged opposite to each other along the X-axis and a second groove wall arranged opposite to each other along the Y-axis. The inner wall surface of each second groove wall is provided with a rib near the first groove wall. The first groove wall, the second groove wall and the rib form the insertion groove.

15. The relay according to claim 13, characterized in that, The yoke is provided with protrusions on both sides along the Y-axis, and the protrusions are matched with the side wall of the first receiving groove.

16. The relay according to claim 8, characterized in that, The relay also includes a housing connected to the base and forming a cavity for accommodating the magnetic circuit portion. The surface of the housing facing the cavity is provided with a pressing part for pressing against the yoke.

17. The relay according to claim 1, characterized in that, The coil structure includes a coil frame, a yoke, and a core. The coil frame has a first winding portion and a second winding portion spaced apart along the X-axis. The first winding portion and the second winding portion are respectively provided with a core. The yoke is provided on the side of the first winding portion and the second winding portion that are opposite to each other. Each yoke is connected to the corresponding core. The outer periphery of the first winding portion and the second winding portion is respectively wound with windings. The armature assembly includes an armature and a permanent magnet, the permanent magnet being fixed to the side of the armature facing the coil frame; Wherein, the magnetic fields generated by the outer circumference windings of the first winding portion and the outer circumference windings of the second winding portion have the same direction when energized.

18. The relay according to claim 17, characterized in that, The armature assembly further includes a magnetic conductor, the armature being fixed to the first magnetic pole of the permanent magnet, and the magnetic conductor being fixed to the second magnetic pole of the permanent magnet. The first magnetic pole and the second magnetic pole are positioned opposite each other and have opposite polarities. The magnetic conductor is located between the two cores.

19. The relay according to claim 18, characterized in that, The coil frame further includes an intermediate portion connected between the first winding portion and the second winding portion, the intermediate portion having a groove on the side facing the armature, and at least a portion of the magnetic conductor being accommodated in the groove.

20. The relay according to claim 17, characterized in that, The magnetization direction of the permanent magnet is parallel to the Z-axis direction.

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