relay

Abstract

This utility model relates to the field of electronic control device technology, and specifically to a relay. The relay includes a contact portion, a magnetic circuit portion, and an auxiliary contact portion. The contact portion includes a moving contact and a stationary contact. The magnetic circuit portion includes a coil assembly and an armature assembly. The armature assembly is disposed on at least one side of the coil assembly along a direction perpendicular to the axial direction of the coil assembly. The armature assembly includes a bracket and an armature body. The bracket includes a body portion and a driving portion, with the armature body mounted on the body portion. The driving portion is connected to at least one moving contact within the contact portion to drive the corresponding moving contact to contact or separate from the stationary contact. The auxiliary contact portion includes an auxiliary moving contact and an auxiliary stationary contact. The auxiliary moving contact is connected to and follows the driving portion to contact or separate from the auxiliary stationary contact, indicating the contact state of the contact portion. By optimizing its structure, this relay can reduce the space occupied by the auxiliary switch within the relay, thus meeting the miniaturization design requirements of the relay.

Description

Technical Field

[0001] This utility model relates to the field of electronic 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] Relays typically include an auxiliary switch. In existing technology, the auxiliary moving contact and auxiliary stationary contact of the auxiliary switch are usually mounted separately on the base. The auxiliary moving contact is brought into contact with or separated from the auxiliary stationary contact by the pushing or releasing of the armature assembly or pusher. However, since the auxiliary switch requires independent installation space, it occupies a large area, thus affecting the miniaturization design of the relay. Utility Model Content

[0004] This utility model provides a relay that, by optimizing its own structure, can reduce the space occupied by the auxiliary switch inside the relay, thereby meeting the miniaturization design requirements of the relay.

[0005] This utility model provides a relay, including: a contact portion, wherein the contact portion includes a moving contact and a stationary contact;

[0006] The magnetic circuit section includes a coil assembly and an armature assembly. The armature assembly is disposed on at least one side of the coil assembly along a direction perpendicular to the axial direction of the coil assembly. The armature assembly includes a bracket and an armature body. The bracket includes a body portion and a driving portion. The armature body is mounted on the body portion. The driving portion is directly or indirectly connected to at least one of the moving contacts in the contact portion to drive the corresponding moving contact to contact or separate from the stationary contact.

[0007] The auxiliary contact portion includes an auxiliary moving contact and an auxiliary stationary contact. The auxiliary moving contact is connected to and follows the driving part to contact or separate from the auxiliary stationary contact, thereby indicating the contact state of the contact portion.

[0008] According to some embodiments of the present invention, the coil assembly further includes a yoke; the yoke has a magnetic attraction surface, and the direction of contact or separation between the auxiliary moving contact and the auxiliary stationary contact is set at a preset angle with at least one of the magnetic attraction surfaces, the preset angle being 80° to 90°.

[0009] According to some embodiments of the present invention, the armature body has at least one pair of magnetic attraction portions arranged opposite to each other along the layout direction, each of the pair of magnetic attraction portions being used to switch attraction with the magnetic attraction surfaces on both sides of the yoke in the layout direction; the auxiliary moving contact member contacts or separates from the auxiliary stationary contact member along at least one side of the layout direction of the at least one pair of magnetic attraction portions.

[0010] And / or, the direction of contact or separation between the auxiliary moving contact and the auxiliary stationary contact is perpendicular to at least one of the magnetic attraction surfaces.

[0011] According to some embodiments of the present invention, the extension direction of the auxiliary moving contact is at a preset angle to the arrangement direction of at least one pair of magnetic attraction portions, and the preset angle is 80° to 90°.

[0012] According to some embodiments of the present invention, the auxiliary moving contact is a sheet-like structure, and the thickness direction of the auxiliary moving contact is parallel to the arrangement direction of at least one pair of magnetic attraction portions.

[0013] According to some embodiments of the present invention, the auxiliary moving contact includes a fixed section and a free section connected to the fixed section along the extending direction. The auxiliary moving contact is connected to the driving part through the fixed section. The free section is provided with an auxiliary moving contact point, and the auxiliary moving contact contact or separates from the auxiliary stationary contact through the auxiliary moving contact point.

[0014] According to some embodiments of the present invention, the free segment is further provided with a bending portion, the bending portion being located between the auxiliary moving contact and the fixed segment; and / or, the free segment is provided with at least two sub-segments arranged along the width direction of the auxiliary moving contact, each sub-segment being provided with the auxiliary moving contact.

[0015] According to some embodiments of the present invention, the cross-sectional shape of the bent portion is U-shaped, and the opening of the U-shape is located on one side of the thickness direction of the auxiliary moving contact piece.

[0016] According to some embodiments of the present invention, the auxiliary contact portion includes two auxiliary stationary contacts fixed relative to the coil assembly, the two auxiliary stationary contacts being spaced apart and located on both sides of the driving portion; the auxiliary moving contact is integrally mounted on the driving portion and has two free segments, the two free segments being located on both sides of the length direction of the fixed segment, each free segment being used to contact or separate from one of the auxiliary stationary contacts.

[0017] According to some embodiments of the present invention, the driving part is provided with a plug-in groove, and at least a portion of the fixed section of the auxiliary moving contact is inserted and fixed in the plug-in groove.

[0018] According to some embodiments of this utility model, the fixing section has a protrusion on one side along the thickness direction; the fixing section is engaged in the insertion groove by the protrusion.

[0019] According to some embodiments of the present invention, at least a portion of the fixed section of the auxiliary moving contact is engaged within the insertion slot; the relay further includes an adhesive layer, at least a portion of which is located within the insertion slot and adheres to the insertion slot and the fixed section.

[0020] According to some embodiments of the present invention, the relay further includes a housing, the housing including a first housing, the first housing having a receiving cavity for mounting the magnetic circuit portion and the contact portion, the receiving cavity having an opening.

[0021] According to some embodiments of the present invention, at least a portion of the insertion groove between the auxiliary moving contact and the driving part is exposed in the opening.

[0022] According to some embodiments of the present invention, the outer shell further includes an auxiliary connecting plate, which is fixedly connected to one side of the opening of the first shell and is used for connection of the armature assembly to provide guidance for the movement of the armature assembly; the auxiliary connecting plate is provided with an observation port, and at least a portion of the insertion slot is exposed in the observation port; the auxiliary stationary contact is fixedly inserted into the first shell and / or the auxiliary connecting plate.

[0023] According to some embodiments of this utility model, the auxiliary stationary contact is rod-shaped, and the auxiliary stationary contact is inserted into the auxiliary connecting plate and fixed by dispensing; the receiving cavity of the first housing is provided with a limiting surface for abutting the auxiliary stationary contact to ensure the stability of the auxiliary stationary contact when it is abutted by the auxiliary moving contact.

[0024] According to some embodiments of the present invention, the outer casing further includes a second housing, at least a portion of which is located on the side of the auxiliary connecting plate opposite to the first housing, and the second housing fastens the opening; at least a portion of the auxiliary stationary contact extends through the second housing.

[0025] According to some embodiments of this utility model, the auxiliary moving contact and the driving part are integrally formed.

[0026] According to some embodiments of the present invention, the contact portion is arranged on one side of the armature assembly in a direction perpendicular to the axial direction of the coil assembly, and the driving portion is directly connected to the corresponding moving contact in the contact portion; at least a portion of the driving portion extends along the direction of the body portion toward the contact portion to form a mounting section, and the auxiliary moving contact is connected to the mounting section.

[0027] According to some embodiments of this utility model, the bracket is an insulating bracket; the driving part further includes a retaining wall structure, which is connected to the mounting section and located between the auxiliary moving contact and the moving contact, for increasing the air gap and creepage distance between the moving contact and the auxiliary stationary contact.

[0028] According to some embodiments of the present invention, the moving contact is provided with a pulling part, the pulling part is located on the side of the moving contact away from the stationary contact, the driving part is adapted to pull the pulling part to separate the moving contact and the stationary contact, and the retaining wall structure is provided between the auxiliary moving contact and the pulling part.

[0029] According to some embodiments of the present invention, the body portion of the bracket is located on one side of the contact portion in the first direction, and the axial direction of the coil assembly is parallel to the second direction; the surface of the retaining wall structure in the third direction extends beyond the surface of the auxiliary moving contact in the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0030] According to some embodiments of the present invention, the main body of the armature assembly can rotate about an axis parallel to the third direction.

[0031] According to some embodiments of this utility model, the armature assembly moves in a linear motion.

[0032] According to some embodiments of the present invention, the axis is located on the side of the armature body facing the contact portion in the first direction.

[0033] According to some embodiments of this utility model, the extension direction of the auxiliary moving contact intersects with the axis.

[0034] According to some embodiments of the present invention, the armature body includes two armatures and a permanent magnet. The two armatures are respectively fixed to the two magnetic poles of the permanent magnet. The two armatures form an attraction portion on both sides along the second direction. The driving portion is located on the side of the two armatures facing the contact portion in the first direction, and is located in the middle or on one side of the body portion along the second direction.

[0035] According to some embodiments of the present invention, the driving part further includes a pushing section and a pulling section. The pushing section is connected to the side of the mounting section facing the moving contact and is configured to push the moving contact to move so that the moving contact contacts the stationary contact. The pulling section is connected to the pushing section and is configured to pull the moving contact to separate the moving contact from the stationary contact.

[0036] According to some embodiments of this utility model, the contact portion includes two moving contacts and two stationary contacts, wherein the two moving contacts are a first moving contact and a second moving contact, and the two stationary contacts are a first stationary contact and a second stationary contact, wherein:

[0037] The first stationary contact includes a first stationary contact point, and the second stationary contact includes a second stationary contact point;

[0038] The second movable contact is arranged side by side with the first movable contact, the first stationary contact is connected to the second movable contact, and the second stationary contact is connected to the first stationary contact; the first movable contact is provided with a first movable contact point, and the second movable contact is provided with a second movable contact point, the positions of the first movable contact point and the first stationary contact point correspond, and the positions of the second movable contact point and the second stationary contact point correspond;

[0039] The bracket includes at least two driving parts; one driving part is connected to the first moving contact to drive the corresponding first moving contact to contact or separate from the first stationary contact; the other driving part is connected to the second moving contact to drive the corresponding second moving contact to contact or separate from the second stationary contact; at least one driving part is connected to the auxiliary moving contact.

[0040] One embodiment of the above-described utility model has at least the following advantages or beneficial effects:

[0041] 1. The relay provided in this application uses the driving part on the armature assembly for driving the movement of the moving contact to fix the auxiliary moving contact, and integrates the auxiliary moving contact into the existing driving part, without the need to set up additional space for the installation of the auxiliary contact part or to set up a structure for the installation of the auxiliary contact part on the armature assembly or other moving parts. Therefore, it can save space and facilitate the miniaturization of the relay.

[0042] Furthermore, the auxiliary moving contact follows the armature assembly via a bracket. This structural design improves the movement stability of the auxiliary moving contact, thereby enhancing the accuracy of contact or disconnection between the auxiliary moving contact and the auxiliary stationary contact. Moreover, compared to traditional auxiliary contact sections where the auxiliary moving contact relies on its own deformation recovery capability to disconnect from the auxiliary stationary contact, this relay eliminates the need for a large contact distance between the auxiliary moving and stationary contacts to ensure reliable disconnection. This reduces the spacing between the auxiliary moving and stationary contacts in the contact direction, saving space in the auxiliary contact section and facilitating miniaturization of the relay.

[0043] 2. In the relay provided in this application, the yoke has a magnetic attraction surface. The contact or disconnection direction between the auxiliary moving contact and the auxiliary stationary contact forms a preset angle with at least one magnetic attraction surface. The preset angle is 80° to 90°, so that the movement direction of the auxiliary moving contact is as close as possible to the movement direction of the armature assembly. This maximizes the use of the movement of the armature assembly to achieve reliable contact or disconnection with the auxiliary stationary contact. In other words, the effective stroke conversion rate is high. This avoids the problem of needing to increase the distance between the auxiliary moving contact and the auxiliary stationary contact and the increase in installation space caused by the auxiliary moving contact using the lateral movement of the armature assembly to contact or disconnect with the auxiliary stationary contact. This improves the integration between the internal structural components of the relay and facilitates the miniaturization of the relay. In addition, it ensures that the state change of the auxiliary moving contact is strictly synchronized with the position of the contact part and the armature assembly, which can improve the reliability of the movement of the auxiliary moving contact. The closer the direction of contact or separation between the auxiliary moving contact and the auxiliary stationary contact is to at least one magnetic attraction surface, the higher the conversion efficiency of the effective movement stroke between the armature assembly and the auxiliary moving contact, and the more beneficial it is to saving installation space.

[0044] 3. In the relay provided in this application, the auxiliary moving contact contacts or disconnects from the auxiliary stationary contact on at least one side along the arrangement direction of at least one pair of magnetically engaging portions. Accordingly, the direction of the effective contact and disconnection stroke of the auxiliary moving contact is consistent with or substantially consistent with the direction of the effective travel stroke of the armature assembly. Therefore, the conversion rate of the effective travel is high, which is more conducive to saving space, improving the integration between internal structural components of the relay, and facilitating the miniaturization of the relay.

[0045] 4. In the relay provided in this application, the extension direction of the auxiliary moving contact forms a preset angle with the arrangement direction of at least one pair of magnetic engaging parts, so that the extension direction of the auxiliary moving contact does not occupy too much space in the movement direction of the armature assembly, thereby reducing the space required for the auxiliary moving contact to move. Attached Figure Description

[0046] Figure 1 The diagram shown is an exploded view of the relay provided in an embodiment of this application;

[0047] Figure 2 What is shown is Figure 1 A schematic diagram of the three-dimensional structure after the middle section is assembled;

[0048] Figure 3 What is shown is Figure 2 Enlarged structural diagram at point A;

[0049] Figure 4 What is shown is Figure 1 A three-dimensional structural diagram of an armature assembly with an auxiliary moving contact installed in the middle;

[0050] Figure 5What is shown is Figure 4 Explosion diagram of the middle structure;

[0051] Figure 6 What is shown is Figure 1 A schematic diagram of the three-dimensional structure after the middle structure is assembled;

[0052] Figure 7 The diagram shown is a structural schematic of the relay provided in this application after the auxiliary connection plate and armature assembly are assembled.

[0053] Figure 8 The diagram shown is a structural schematic of the relay provided in this application after the auxiliary connecting plate and the first housing are assembled.

[0054] Figure 9 What is shown is Figure 8 Enlarged view of point B in the middle;

[0055] Figure 10 The diagram shown is an exploded view of the contact portion of a relay provided in an embodiment of this application;

[0056] Figure 11 What is shown is Figure 10 A schematic diagram of the assembled structure;

[0057] Figure 12 The diagram shown is a structural schematic of the relay with its internal contact portion in a closed state according to an embodiment of this application.

[0058] Figure 13 What is shown is Figure 12 Enlarged view of point D in the middle;

[0059] Figure 14 The diagram shown is a structural schematic of the relay with the internal contact portion in an open state according to an embodiment of this application;

[0060] Figure 15 What is shown is Figure 14 Enlarged diagram of point D in the middle.

[0061] The annotations in the attached figures are explained as follows:

[0062] 100. Contact portion; 110. Moving contact; 110a. First moving contact; 110b. Second moving contact; 111. Moving contact piece; 111a. First moving contact piece; 111b. Second moving contact piece; 112. Moving contact point; 112a. First moving contact point; 112b. Second moving contact point; 113. Pulling part; 120. Stationary contact; 120a. First stationary contact; 120b. Second stationary contact; 121. Stationary contact point; 121a. First stationary contact point; 121b. Second stationary contact point; 122a. First lead-out piece; 122b. Second lead-out piece;

[0063] 200. Magnetic circuit section; 210. Coil assembly; 211. Coil frame; 212. Winding; 213. Yoke; 2131. Magnetic suction surface; 220. Armature assembly; 221. Support; 2211. Body section; 2212. Drive section; 2212-1. Mounting section; 2212-2. Pushing section; 2212-3. Pulling section; 2212-4. Insertion slot; 2212-5. Retaining wall structure; 222. Armature body; 2221. Magnetic suction part; 223. Permanent magnet;

[0064] 300. Auxiliary contact part; 310. Auxiliary moving contact; 311. Fixed section; 312. Free section; 313. Auxiliary moving contact; 314. Bending part; 315. Protrusion; 320. Auxiliary stationary contact;

[0065] 400, outer shell; 410, first shell; 411, opening; 412, limiting surface; 420, second shell; 430, auxiliary connecting plate; 431, observation port. Detailed Implementation

[0066] 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, these embodiments are provided so that the present invention 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.

[0067] This application provides a relay, which may be a magnetic latching relay, but is not limited thereto. Figure 1 The diagram shown is an exploded view of the relay provided in an embodiment of this application. Figure 1 As shown, the relay includes a contact portion 100, a magnetic circuit portion 200, and an auxiliary contact portion 300. Exemplarily, the contact portion 100, the magnetic circuit portion 200, and the auxiliary contact portion 300 are assembled within a housing 400.

[0068] Figure 2 What is shown is Figure 1 A schematic diagram of the three-dimensional structure after the middle section is assembled; Figure 3 What is shown is Figure 2 A magnified structural diagram at point A. Please refer to... Figure 2 and Figure 3 refer to Figure 1As shown in the structure, in the relay provided in this application embodiment, the contact portion 100 includes a moving contact 110 and a stationary contact 120; the magnetic circuit portion 200 includes a coil assembly 210 and an armature assembly 220. The armature assembly 220 is disposed on at least one side of the coil assembly 210 along a direction perpendicular to the axial direction of the coil assembly 210. The armature assembly 220 includes a bracket 221 and an armature body 222. The bracket 221 includes a body portion 2211 and a driving portion 2212. The armature body 222 is mounted on the body portion 2211. The driving portion 2212 is directly or indirectly connected to at least one moving contact 110 in the contact portion 100 to drive the corresponding moving contact 110 to contact or separate from the stationary contact 120. The driving portion 2212 is provided with an auxiliary moving contact 310 in all or part of its components. The auxiliary contact portion 300 includes an auxiliary moving contact 310 and an auxiliary stationary contact 320. The auxiliary moving contact 310 is connected to and follows the drive portion 2212 to contact or separate from the auxiliary stationary contact 320 to indicate the contact state of the contact portion 100. The auxiliary moving contact 310 may be partially connected to the drive portion 2212 or integrally mounted on the drive portion 2212.

[0069] For example, such as Figure 1 and Figure 2 As shown, the coil assembly 210 includes a coil frame 211 and a winding 212 wound around the surface of the coil frame 211. It should be understood that the "axial direction of the coil assembly 210" can be defined as the direction in which the axis of the winding 212 extends. The contact portion 100 has a closed state and an open state. The armature assembly 220 is used to drive the contact portion 100 to switch from the closed state to the open state and from the open state to the closed state. The coil assembly 210 is configured to drive the armature assembly 220 to move in response to an input signal.

[0070] It should be noted that the relay provided in this application embodiment uses the driving part 2212 on the armature assembly 220 for driving the moving contact 110 to fix the auxiliary moving contact 310, and integrates the auxiliary moving contact 310 into the existing driving part 2212, without the need to set up additional space for the auxiliary contact part 300 to be installed or to set up a structure for the auxiliary contact part 300 to be installed on the armature assembly 220 or other moving parts. Therefore, space can be saved and the relay can be miniaturized.

[0071] Furthermore, the auxiliary moving contact 310 follows the armature assembly 220 via the bracket 221. This structural design improves the movement stability of the auxiliary moving contact 310, thereby enhancing the accuracy of contact or disconnection between the auxiliary moving contact 310 and the auxiliary stationary contact 320. Moreover, compared to the traditional auxiliary contact portion where the auxiliary moving contact 310 relies on its own deformation recovery capability to disconnect from the auxiliary stationary contact 320, this relay eliminates the need to set a large contact distance between the auxiliary moving contact 310 and the auxiliary stationary contact 320 to ensure reliable disconnection. This reduces the spacing between the auxiliary moving contact 310 and the auxiliary stationary contact 320 in the contact direction, thus saving space in the auxiliary contact portion 300 and facilitating the miniaturization of the relay.

[0072] In one embodiment, please refer to... Figures 2 to 3 The structure shown includes two yokes 213 in the coil assembly 210. For example, as... Figure 3 As shown, the yoke 213 is fixed relative to the coil frame 211, specifically fixed to one side of the coil frame 211 along the axial direction of the coil assembly 210, as shown. Figure 2 As shown, two yokes 213 are fixed to both sides of the coil frame 211 along the axial direction of the coil assembly 210. In other embodiments, at least two yokes 213 may be provided on at least one side of the coil frame 211 along the axial direction of the coil assembly 210. The yokes 213 have magnetic attraction surfaces 2131. The contact or separation direction between the auxiliary moving contact 310 and the auxiliary stationary contact 320 is set at a preset angle with at least one magnetic attraction surface 2131. The preset angle is 80° to 90°, and the preset angle may be, but is not limited to, any one of the following angles: 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, and 90°.

[0073] In another embodiment, the direction of contact or separation between the auxiliary moving contact 310 and the auxiliary stationary contact 320 is perpendicular to at least one magnetic attraction surface 2131. Considering the error issues in actual production and manufacturing, it can also be considered to be approximately perpendicular (e.g., 90°±5°).

[0074] It should be noted that the structural configuration in this embodiment of the application makes the movement direction of the auxiliary moving contact 310 as close as possible to the movement direction of the armature assembly 220, maximizing the use of the movement of the armature assembly 220 to achieve reliable contact or disconnection with the auxiliary stationary contact 320. That is, the effective stroke conversion rate is high, thereby avoiding the problem of needing to increase the distance between the auxiliary moving contact 310 and the auxiliary stationary contact 320 and increasing the installation space due to the auxiliary moving contact 310 using the lateral movement of the armature assembly 220 to contact or disconnect with the auxiliary stationary contact 320. This improves the integration between the internal structural components of the relay and facilitates the miniaturization of the relay. In addition, it also ensures that the state change of the auxiliary moving contact 310 is strictly synchronized with the position of the contact part 100 and the armature assembly 220, which can improve the reliability of the movement of the auxiliary moving contact 310. The closer the direction of contact or separation between the auxiliary moving contact 310 and the auxiliary stationary contact 320 is to at least one magnetic attraction surface 2131, the higher the conversion efficiency of the effective movement stroke between the armature assembly 220 and the auxiliary moving contact 310, and the more beneficial it is to save installation space.

[0075] The direction of contact or separation between the auxiliary moving contact 310 and the auxiliary stationary contact 320 can be understood as the normal direction of the position where the auxiliary stationary contact 320 contacts the auxiliary moving contact 310.

[0076] In one embodiment, please refer to... Figure 3 The structure shown has an armature body 222 having at least one pair of magnetic attraction portions 2221 arranged opposite each other along the layout direction. Each magnetic attraction portion 2221 is used to switch attraction with the magnetic attraction surfaces 2131 on both sides of the yoke 213 in the layout direction. The auxiliary moving contact 310 contacts or disconnects from the auxiliary stationary contact 320 on at least one side along the layout direction of the at least one pair of magnetic attraction portions 2221. This allows the auxiliary moving contact 310 to effectively extend its length using the space on both sides of the drive portion 2212, thereby reducing the reaction force acting on the armature assembly 220 when the auxiliary moving contact 310 contacts the auxiliary stationary contact 320, and avoiding the need to provide a larger operating voltage to the armature assembly 220, thus reducing energy consumption.

[0077] It should be noted that in the relay provided in this application embodiment, the direction of the effective contact and disconnection stroke of the auxiliary moving contact 310 is consistent with or approximately consistent with the direction of the effective moving stroke of the armature assembly 220. Therefore, the conversion rate of the effective stroke is high, which is more conducive to saving space, improving the integration between internal structural components of the relay, and facilitating the miniaturization of the relay.

[0078] Figure 4 What is shown is Figure 1 A three-dimensional structural diagram of the armature assembly 220 with the auxiliary moving contact 310 installed. (See diagram below.) Figure 4As shown, the armature body 222 is exemplarily illustrated with two pairs of magnetic attraction portions 2221. Of course, the armature body 222 can also be configured in other ways. Figure 4 The difference is that, for example, the armature body 222 only has a pair of magnetic attraction parts 2221, which will not be described in detail here.

[0079] It is worth noting that, in order to better understand the arrangement direction of the pair of magnetic attraction parts 2221, Figure 4 In the example, the two magnetic engagement parts 2221 are marked with a dashed line.

[0080] In one embodiment, please refer to... Figure 4 The structure shown has an auxiliary movable contact 310 extending at a predetermined angle to the arrangement direction of at least one pair of magnetic attraction portions 2221, so that the extension direction of the auxiliary movable contact 310 does not occupy too much space in the movement direction of the armature assembly 220, thereby reducing the space required for the auxiliary movable contact 310 to move.

[0081] It should be understood that the preset angle can be set according to requirements. For example, the preset angle can be set to 80° to 90°. Specifically, in actual settings, the preset angle can be, but is not limited to, one of the following angles: 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, and 90°.

[0082] When configuring the auxiliary moving contact 310, there are various possibilities for its structural configuration. To reduce the space occupied by the auxiliary moving contact 310 within the relay and facilitate miniaturization, in one embodiment, such as... Figure 3 and Figure 4 As shown, the auxiliary moving contact 310 has a sheet-like structure.

[0083] In a specific embodiment, in conjunction with the sheet-like structure of the auxiliary moving contact 111, the thickness direction of the auxiliary moving contact 310 can be set to be parallel to the arrangement direction of at least one pair of magnetic attraction portions 2221. Alternatively, the thickness direction of the auxiliary moving contact 310 can be understood as being perpendicular to the magnetic attraction surface 2131 of at least one yoke 213. This further reduces the space occupied by the auxiliary moving contact 310 in the moving direction, while ensuring that the auxiliary moving contact 310 has good elastic deformation capability, reducing the reaction force acting on the armature assembly 220 when it contacts the auxiliary stationary contact 320. This avoids the need to provide a larger operating voltage to the armature assembly 220 and reduces energy consumption.

[0084] Figure 5 What is shown is Figure 4 An exploded view of the central structure. Please refer to... Figure 5 refer to Figure 4In one embodiment of the structure shown, the auxiliary movable contact 310 includes a fixed section 311 and a free section 312 connected to the fixed section 311 along the extending direction. The auxiliary movable contact 310 is connected to the driving part 2212 through the fixed section 311, providing stable support and a fixing point for the auxiliary movable contact 310. The free section 312 is provided with an auxiliary movable contact 313, through which the auxiliary movable contact 310 connects to, for example... Figure 3 The auxiliary stationary contact 320 in the middle is in contact or separated.

[0085] It should be noted that the connection between the fixed section 311 and the driving unit 2212 provides stable support and a fixing point for the auxiliary moving contact 310. The free section 312 is connected to the fixed section 311 along the extension direction, which gives the free section 312 a certain amount of room for movement and flexibility. Under the action of the driving unit 2212, the free section 312 can move more flexibly, thereby achieving precise contact or separation between the auxiliary moving contact 313 and the auxiliary stationary contact 320.

[0086] In one embodiment, please refer to... Figure 4 and Figure 5 The structure shown includes a bend 314 in the free section 312, which is located between the auxiliary moving contact 313 and the fixed section 311.

[0087] It should be noted that the bending portion 314 can ensure that the auxiliary moving contact 310 also has a large overtravel when the armature assembly 220 overtravels, so that the auxiliary moving contact 310 and, for example, Figure 3 The auxiliary stationary contact 320 shown can make reliable contact, while also reducing the elastic force of the auxiliary moving contact 310 when it deforms, and reducing the reaction force of the auxiliary moving contact 310 on the armature assembly 220, thereby avoiding the need to provide a larger operating voltage to the armature assembly 220 and reducing energy consumption.

[0088] In one embodiment, such as Figure 4 and Figure 5 As shown, the cross-sectional shape of the bent portion 314 is U-shaped, and the opening of the U-shape is located on one side of the thickness direction of the auxiliary moving contact 111, so as to make full use of the space in the movement direction of the auxiliary moving contact 310, which is beneficial to the miniaturization design of the relay. In addition, this design also makes the auxiliary moving contact 310 more flexible in the thickness direction, thereby reducing the reaction force generated on the armature assembly 220.

[0089] It is worth noting that the U-shaped opening can be customized according to requirements, i.e., it can face the contact portion 100 or... Figure 3 The opposite contact portion 100 shown is designed to make reasonable use of the space inside the relay; details will not be elaborated further.

[0090] Please continue to refer to this. Figure 4 and Figure 5 In one embodiment of the structure shown, the auxiliary contact portion 300 includes two auxiliary stationary contacts 320 fixed relative to the coil assembly 210, the two auxiliary stationary contacts 320 being spaced apart and located on both sides of the drive portion 2212; the auxiliary moving contact 310 is integrally mounted on the drive portion 2212 and has two free segments 312 located on both sides of the fixed segment 311 along its length, each free segment 312 being used to contact, for example, a... Figure 3 The auxiliary stationary contact 320 shown is in contact or separated, wherein the length direction of the fixed section 311 is the extension direction of the auxiliary moving contact 310.

[0091] It should be noted that in this embodiment, the two free segments 312 of the auxiliary moving contact 310 are respectively used to contact or separate from the auxiliary stationary contacts 320 located on both sides of the driving part 2212, and the contact state of the two free segments 312 with their respective auxiliary stationary contacts 320 is consistent. That is, when the auxiliary moving contact 310 approaches the two auxiliary stationary contacts 320, the two free segments 312 respectively contact their respective auxiliary stationary contacts 320, and at this time, the two auxiliary stationary contacts 320 are electrically connected to each other; when the auxiliary moving contact 310 moves away from the two auxiliary stationary contacts 320, the two free segments 312 respectively separate from their respective auxiliary stationary contacts 320, and at this time, the two auxiliary stationary contacts 320 are disconnected from each other. This structural arrangement can make reasonable use of space and make the force on both sides of the driving part 2212 balanced, avoiding stress concentration caused by the driving part 2212 always being subjected to force on one side, which would affect the structural strength and the connection stability with the auxiliary moving contact 310.

[0092] It is worth noting that in this embodiment, the electrical signals of the auxiliary contact portion 300 are transmitted by two auxiliary stationary contacts 320 as terminals, and the moving contact 110 does not need to have a terminal for transmitting electrical signals outward. Therefore, the auxiliary moving contacts 310 can be fully installed and follow the drive portion 2212. Compared to a structure where one part of the auxiliary moving contacts 310 is disposed in the armature assembly 220 and the other part is installed in the housing to lead out terminals, the auxiliary moving contacts 310 do not generate a reaction force on the armature assembly 220 during the entire opening or closing process, but only generate a reaction force on the armature assembly 220 when in contact with the auxiliary stationary contacts 320. Therefore, the impact on the normal movement of the armature assembly 220 is smaller.

[0093] In one embodiment, the free segment has at least two sub-segments arranged along the width direction of the auxiliary moving contact 310, and each sub-segment has an auxiliary moving contact 313 to further reduce the reaction force and improve the reliability of contact with the auxiliary stationary contact 320.

[0094] For example, such as Figure 4 and Figure 5As shown, each free segment 312 includes two sub-segments (not numbered in the figure, located on the side of the free segment 312 opposite to the fixed segment 311). Specifically, the two sub-segments are separated by a notch, and each sub-segment has an auxiliary moving contact 313 to contact or separate from the auxiliary stationary contact 320, ensuring reliable contact between the auxiliary moving contact 310 and the auxiliary stationary contact 320. It should be understood that the number of sub-segments within the free segment 312 can also be set to other values, which will not be elaborated further.

[0095] In addition, the auxiliary contact portion 300 may be configured to include only one auxiliary stationary contact 320, and the auxiliary moving contact 310 may have only one free segment 312 to contact or separate from the auxiliary stationary contact 320, the details of which will not be elaborated further.

[0096] When specifically configuring the auxiliary moving contact 310 and the driving part 2212, there are multiple possibilities for the connection relationship between the two, at least one of the following structural forms.

[0097] Structural form one, such as Figure 4 and Figure 5 As shown, the drive unit 2212 is provided with a plug groove 2212-4, and at least a portion of the fixing section 311 of the auxiliary moving contact is inserted and fixed in the plug groove 2212-4.

[0098] It should be noted that in this structural form one, the auxiliary moving contact 310 is fixed by the insertion slot 2212-4, so that the fixing section 311 of the auxiliary moving contact 310 can be quickly inserted and fixed on the drive part 2212, which can improve assembly efficiency and reduce installation cost.

[0099] When setting the insertion slot 2212-4, the inner wall surface of the insertion slot 2212-4 can be configured to form a raised structure or a recessed structure as required, so as to provide precise positioning and guidance for the fixed section 311 of the auxiliary moving contact 310 during the insertion process and to provide precise limiting along the thickness direction of the auxiliary moving contact 310 after insertion. The specific details will not be elaborated further.

[0100] In one embodiment, please refer to... Figure 4 and Figure 5 As shown in the structure, the fixing section 311 has a protrusion 315 on one side along the thickness direction; the fixing section 311 is engaged in the insertion groove 2212-4 by the protrusion 315. The protrusion 315 can play a pre-tightening role to prevent the auxiliary moving contact 310 from falling out of the insertion groove 2212-4, so as to wait for the subsequent glue dispensing operation.

[0101] It should be noted that the design of the protrusion 315 allows the size of the insertion groove 2212-4 to be set larger in the thickness direction of the fixed section 311. This structural design can reduce the risk of mold damage and reduce the difficulty and cost of manufacturing; on the other hand, it can increase the adhesive space to improve the adhesion stability of the adhesive layer to the auxiliary moving contact 310 and the driving part 2212.

[0102] In one embodiment, at least a portion of the fixing segment 311 of the auxiliary movable contact 310 engages within the insertion groove 2212-4. That is, the fixing segment 311 and the insertion groove 2212-4 have an interference fit, allowing the fixing segment 311 to be tightly embedded within the insertion groove 2212-4, forming a very secure connection. This provides reliable pre-tightening and anti-detachment before adhesive application, or during operation, even under vibration, the auxiliary movable contact 310 is unlikely to loosen or fall off, thereby improving the contact stability of the auxiliary contact portion 300.

[0103] In one embodiment, the relay provided in this application may further include an adhesive layer. Please refer to... Figure 4 and Figure 5 At least a portion of the adhesive layer is located within the insertion groove 2212-4 and bonds the insertion groove 2212-4 to the fixing section 311, thereby improving the connection stability between the auxiliary moving contact 310 and the driving part 2212 through bonding, and thus improving the contact stability of the auxiliary contact part 300.

[0104] It should be understood that the fixing section 311 bonded by the adhesive layer may have a protrusion 315 or may not have a protrusion 315. In addition, the fixing section 311 may be interference-fitted with the insertion groove 2212-4 or simply inserted. Furthermore, when the fixing section 311 is interference-fitted with the insertion groove 2212-4, it may be fixed by the adhesive layer or without the adhesive layer.

[0105] Figure 6 What is shown is Figure 1 A schematic diagram of the three-dimensional structure after assembly. In one embodiment, please refer to... Figure 6 refer to Figure 1 The structure shown includes a housing 400, which includes a first housing 410. The first housing 410 has a receiving cavity for mounting the contact portion 100, the magnetic circuit portion 200 and the auxiliary contact portion 300, and the receiving cavity has an opening 411.

[0106] In one implementation, such as Figure 1 and Figure 6As shown, the outer casing 400 may include a first casing 410 and a second casing 420, which are connected together to form a hollow cavity. The shape of the first casing 410 and the second casing 420 after connection can have various embodiments. For example, in the embodiment of this application, the shape of the first casing 410 and the second casing 420 after connection is a hollow cuboid. Of course, in other embodiments, the shape of the first casing 410 and the second casing 420 after connection can also be a hollow cylinder, or other suitable shapes, which will not be elaborated further.

[0107] As an example, such as Figure 1 and Figure 6 As shown, the first housing 410 is a cuboid shape with an opening 411. The contact portion 100, the magnetic circuit portion 200, and the auxiliary contact portion 300 are installed in the receiving cavity of the first housing 410 through the opening 411. The second housing 420 is a cover structure, which is fastened to the opening 411 of the first housing 410 to form a hollow cuboid.

[0108] Of course, in other embodiments, the first housing 410 and the second housing 420 can both be cuboid in shape and have an opening on one side. The opening of the first housing 410 is opposite to the opening of the second housing 420, and the first housing 410 and the second housing 420 are fastened together to form a hollow cavity. The specific details will not be elaborated further.

[0109] In one embodiment, such as Figure 4 At least a portion of the auxiliary moving contact 310 and the insertion slot 2212-4 of the drive unit 2212 shown are exposed as follows Figure 1 The opening 411 shown is used for dispensing adhesive to the insertion slot 2212-4 and the auxiliary moving contact 310. Specifically, this structure can save the dispensing step, allowing the dispensing operation of the auxiliary moving contact 310 and the drive unit 2212 to be performed simultaneously with other dispensing operations.

[0110] In another embodiment, please continue to refer to Figure 1 As shown in the structure, the housing 400 also includes an auxiliary connecting plate 430, which is fixedly connected to one side of the opening 411 of the first housing 410 and is connected to the armature assembly 220 to provide guidance for the movement of the armature assembly 220.

[0111] Figure 7 The diagram shown is a structural schematic of the relay provided in this application after the auxiliary connection plate 430 and the armature assembly 220 are assembled. Figure 8 The diagram shown is a structural schematic of the relay provided in this application after the auxiliary connection plate 430 and the first housing 410 are assembled. Figure 9 What is shown is Figure 8 A magnified view of point B in the middle. Please continue to refer to this. Figure 1 as well as Figure 7 , Figure 8 and Figure 9 As shown in the structure, the auxiliary connecting plate 430 is provided with an observation port 431, through which at least a portion of the insertion slot 2212-4 is exposed. It should be noted that this structural arrangement allows for observation of the contact state between the auxiliary moving contact 310 and the auxiliary stationary contact 320, and also saves on the dispensing step. Specifically, after the auxiliary connecting plate 430 is assembled relative to the first housing 410, the dispensing operation of the auxiliary moving contact 310 and the drive unit 2212 can be performed through the observation port 431, so as to synchronize with other dispensing operations.

[0112] In the second structural form, the auxiliary moving contact 310 and the driving part 2212 are integrally molded. This integrally molded structure can better withstand impact and vibration, and can improve the stability of the connection between the auxiliary moving contact 310 and the driving part 2212, thereby improving the contact stability of the auxiliary contact part 300.

[0113] For example, the auxiliary moving contact 310 and the driving part 2212 can be formed into an integral structure by injection molding to reduce the manufacturing difficulty and manufacturing cost.

[0114] In one embodiment, the auxiliary stationary contact 320 is fixedly inserted into the first housing 410 and / or the auxiliary connecting plate 430.

[0115] For example, such as Figure 7 As shown, the auxiliary stationary contact 320 is rod-shaped and is inserted into the auxiliary connecting plate 430 and fixed by dispensing. Figure 6 As shown, the auxiliary stationary contact 320 extends from one side of the housing 400. It is worth noting that, as... Figure 13 As shown, the housing 400 may have a limiting surface 412 for abutting against the auxiliary stationary contact 320, so as to provide support for the auxiliary stationary contact 320 when it is abutted by the auxiliary moving contact 310, and to ensure the stability of the auxiliary stationary contact 320 when it is abutted by the auxiliary moving contact 310. For example, as... Figure 13 As shown, the first housing 410 is provided with a limiting structure, which has a limiting surface 412 to at least limit the position of the auxiliary stationary contact 320 in the contact direction.

[0116] like Figure 1 and Figure 6 As shown, for example, when the housing 400 also includes a second housing 420, at least a portion of the second housing 420 is located on the side of the auxiliary connecting plate 430 away from the first housing, and the second housing 420 snaps into the opening; at least a portion of the auxiliary stationary contact 320 protrudes from the second housing 420.

[0117] In one embodiment, such as Figure 2 and Figure 3 As shown, the contact portion 100 is arranged along the axial direction of the vertical coil assembly 210 on one side of the armature assembly 220, and the drive portion 2212 is directly connected to the corresponding moving contact 110 in the contact portion 100. It should be understood that the direct connection can further reduce the space occupied, which is conducive to the miniaturization of the relay.

[0118] Please combine Figure 3 refer to Figure 4 and Figure 5 At least a portion of the drive unit 2212 extends along the body unit 2211 toward the contact portion 100 to form a mounting section 2212-1, and an auxiliary moving contact 310 is connected to the mounting section 2212-1. The auxiliary moving contact 310 may be provided by extending a free section 312 on one side to reduce the reaction force.

[0119] Of course, the auxiliary moving contact 310 can also be configured to have two free segments 312 to avoid the need to bring out signal terminals on the auxiliary moving contact 310, simplify the structure and installation complexity of the auxiliary moving contact 310, and control the deformation required during the movement of the auxiliary moving contact 310, thereby reducing the reaction force on the armature assembly 220. The specific details will not be elaborated further.

[0120] In one embodiment, the bracket 221 is an insulating bracket 221, meaning that the bracket 221 is made of insulating material. It should be understood that, as an insulating component, the bracket 221 can effectively isolate the armature body 222 from other conductive components within the relay, preventing short circuits caused by accidental contact between the armature body 222 and these other conductive components, thus ensuring the reliability and safety of the relay.

[0121] Please combine Figure 4 and Figure 5 refer to Figure 3 In one embodiment of the structure shown, the drive unit 2212 further includes a retaining wall structure 2212-5, which is connected to the mounting section 2212-1 and located between the auxiliary moving contact 310 and the moving contact 110, for increasing the air gap and creepage distance between the moving contact 110 and the auxiliary stationary contact 320.

[0122] It is understood that high voltage and high current are conducted within the contact portion 100, while low voltage current is conducted within the auxiliary contact portion 300. Accordingly, the retaining wall structure 2212-5 in this embodiment can isolate strong and weak currents, thereby extending the air gap and creepage distance and increasing safety performance.

[0123] In one embodiment, such as Figure 3As shown, the moving contact 110 is provided with a pulling part 113, which is located on the side of the moving contact 110 opposite to the stationary contact 120. The driving part 2212 is adapted to pull the pulling part 113 to separate the moving contact 110 and the stationary contact 120. Figure 13 As shown, the retaining wall structure 2212-5 is disposed between the auxiliary moving contact 310 and the pulling part 113 to increase the air gap and creepage distance between the auxiliary moving contact 310 and the pulling part 113, thereby increasing safety performance.

[0124] In one embodiment, such as Figure 2 As shown, the body portion 2211 of the bracket 221 is located on one side of the contact portion 100 in the first direction Y, and the axial direction of the coil assembly 210 is parallel to the second direction X; the surface of the barrier structure 2212-5 in the third direction Z extends beyond the surface of the auxiliary moving contact 310 in the third direction Z, and the third direction Z is perpendicular to the first direction Y and the second direction X.

[0125] It should be noted that in this embodiment, the size of the retaining wall structure 2212-5 in the third direction Z is limited to exceed that of the auxiliary moving contact 310, so as to better extend the air gap and creepage distance.

[0126] In one embodiment, please combine Figure 4 refer to Figure 2 and Figure 3 As shown in the structure, the body portion 2211 of the armature assembly 220 can rotate about an axis parallel to the third direction Z, that is, the armature assembly 220 forms a rotating structure, and each of the pair of magnetic attraction portions 2221 is used to engage with different magnetic attraction surfaces 2131 of the yoke 213 in the first direction Y.

[0127] In another embodiment, the armature assembly 220 moves linearly to engage with different magnetic attraction surfaces 2131 of the yoke 213 in the first direction Y.

[0128] When the body portion 2211 within the armature assembly 220 is rotatable about its axis, in a specific embodiment, such as Figure 2 The axis shown (in dashed line) is located on the side of the armature body 222 facing the contact portion 100 in the first direction Y.

[0129] It should be noted that the armature assembly 220 is rotatably connected to the housing 400 in an offset position. For example, the axis of the armature assembly 220 is located on the side closer to the auxiliary moving contact 310 along the first direction Y. At this time, the auxiliary moving contact 310 is closer to the axis in the first direction Y. This structural arrangement can reduce the swing angle of the auxiliary moving contact 310, thereby reducing the area occupied by the auxiliary moving contact 310 during the swing process, saving space and facilitating the miniaturization of the relay.

[0130] In one embodiment, the extension direction of the auxiliary moving contact 310 intersects the axis to minimize the displacement components occupied by the radial and chordal upwards during the swing of the auxiliary moving contact 310, thereby reducing the space required by the auxiliary moving contact 310 during the swing, further saving space and facilitating the miniaturization of the relay. In addition, this structural arrangement also enables the movement of the auxiliary moving contact 310 to be highly synchronized with the swing of the armature assembly 220, effectively avoiding problems such as poor contact or incomplete separation of the auxiliary contact portion 300 due to asynchronous movement or path deviation, thus improving overall performance.

[0131] In one embodiment, the armature body 222 includes two armatures and a permanent magnet. The two armatures are respectively fixed to the two magnetic poles of the permanent magnet so that the armature body 222 maintains magnetic attraction when disconnected. Please refer to... Figure 4 and Figure 5 refer to Figure 3 In the structure shown, each of the two armatures forms a magnetic attraction portion 2221 on both sides along the second direction X. Each of the pair of magnetic attraction portions 2221 located on the same side along the second direction X is used to switch attraction with the magnetic attraction surfaces 2131 on both sides of the yoke 213 in the arrangement direction. The drive unit 2212 is located on the side of the two armatures facing the contact portion 100 in the first direction Y, and is located in the middle or on one side of the body portion 2211 along the second direction X. Figure 4 As shown, in the example provided in this embodiment, the driving part 2212 is located on one side of the body part 2211 along the second direction X, which can easily dock with the movable end of the moving contact 110 in the contact part 100 and achieve a compact arrangement. Moreover, based on this, the auxiliary moving contact 310 is also located on one side of the body part 2211 along the second direction X.

[0132] like Figure 3 and Figure 4 As shown, the extension direction of the auxiliary moving contact 310 is parallel to the length direction of the armature body 222. The length direction of the armature body 222 is parallel to the length direction of the armature and perpendicular to the arrangement direction of at least one pair of magnetic attraction portions 2221. In this way, the auxiliary moving contact 310 can better utilize the spatial advantage in the length direction of the armature body 222 to extend its length and effectively reduce the reaction force.

[0133] In one embodiment, as shown in Figure Figure 4 and Figure 5As shown, the drive unit 2212 further includes a pushing section 2212-2 and a pulling section 2212-3. The pushing section 2212-2 is connected to the mounting section 2212-1 on the side facing the moving contact 110 and is configured to push the moving contact 110 to move so that the moving contact 110 contacts the stationary contact 120. The pulling section 2212-3 is connected to the pushing section 2212-2 and is configured to pull the moving contact 110 to separate the moving contact 110 from the stationary contact 120. It should be understood that the pushing section 2212-2 and the mounting section 2212-1 are schematically separated by dashed lines in the drawings, but the specific separation is not limited thereto.

[0134] It should be noted that in this embodiment, the driving unit 2212 drives the moving contact 110 through different parts to ensure the driving reliability of the driving unit 2212 on the moving contact 110.

[0135] In a specific embodiment, such as Figure 4 As shown, the extension direction of the pulling section 2212-3 is perpendicular to the extension direction of the pushing section 2212-2.

[0136] In one embodiment, such as Figure 1 As shown, the contact portion 100 includes two moving contacts 110 and two stationary contacts 120. For clarity in describing the two moving contacts 110 and two stationary contacts 120 within the contact portion 100, please refer to... Figure 1 refer to Figure 10 and Figure 11 The structure shown. Figure 1 The two moving contacts 110 Figure 10 and Figure 11 The first moving contact 110a and the second moving contact 110b are given specific examples. Figure 1 Two static contacts 120 Figure 10 and Figure 11 The first stationary contact 120a and the second stationary contact 120b are given as specific examples.

[0137] Among them: such as Figure 10 and Figure 11 As shown, the first stationary contact 120a includes a first stationary contact 121a, and the second stationary contact 120b includes a second stationary contact 121b. Figure 11 As shown, the second movable contact 110b is arranged side by side with the first movable contact 110a, exemplarily, arranged side by side along the thickness direction of the first movable contact 110a and the second movable contact 110b. Figure 10As shown, the first stationary contact 120a is connected to the second moving contact 110b, and the second stationary contact 120b is connected to the first stationary contact 120a; the first moving contact 110a is provided with a first moving contact 112a, and the second moving contact 110b is provided with a second moving contact 112b. The positions of the first moving contact 112a and the first stationary contact 121a correspond, and the positions of the second moving contact 112b and the second stationary contact 121b correspond.

[0138] As an example, the first moving contact 112a can be installed on the first moving contact piece 111a by riveting, and the second moving contact 112b can be installed on the second moving contact piece 111b by riveting, but is not limited thereto.

[0139] When the contact portion 100 is in the closed state, the first moving contact 112a is in contact with the first stationary contact 121a, and the second moving contact 112b is in contact with the second stationary contact 121b, so that the first moving contact 111a and the second moving contact 111b form a parallel circuit structure. When the contact portion 100 is in the open state, the first moving contact 112a is separated from the first stationary contact 121a, and the second moving contact 112b is separated from the second stationary contact 121b.

[0140] like Figure 12 As shown, the bracket 221 includes at least two driving parts 2212; wherein, one driving part 2212 is connected to the first moving contact 110a to drive the corresponding first moving contact 112a to contact or separate from the first stationary contact 121a; the other driving part 2212 is connected to the second moving contact 110b to drive the corresponding second moving contact 112b to contact or separate from the second stationary contact 121b.

[0141] Please continue to refer to this. Figure 10 and Figure 11 The structure shown includes a first stationary contact 120a and a second stationary contact 120b, both of which include a first lead-out piece 122a and a second lead-out piece 122b, respectively. The first lead-out piece 122a and the second lead-out piece 122b are used for electrical connection with the positive and negative terminals of the load, respectively. Figure 12 As shown, a portion of the first lead-out piece 122a extends out of the outer surface of the housing 400, and a portion of the second lead-out piece 122b extends out of the outer surface of the housing 400.

[0142] In one embodiment, the first stationary contact 121a is riveted to the first lead-out piece 122a, and the first lead-out piece 122a is electrically connected to the second moving contact piece 111b. The second lead-out piece 122b is riveted to the second stationary contact 121b, and the second lead-out piece 122b is electrically connected to the first moving contact piece 111a.

[0143] As an example, such as Figures 12 to 13As shown, when one of the two pairs of magnetic attraction parts 2221 engages with the magnetic attraction surface 2131 of the yoke 213, the contact portion 100 is in a closed state. At this time, Figure 10 The first moving contact 112a will contact the first stationary contact 121a, and the second moving contact 112b will contact the second stationary contact 121b. Simultaneously, if... Figure 13 As shown, the auxiliary moving contact 310 in the auxiliary contact portion 300 is in contact with the auxiliary stationary contact 320.

[0144] When the armature assembly 220 rotates about its axis, compared to Figure 12 Switch to middle position Figure 14 In the middle position, such as Figure 14 and Figure 15 As shown, one of the two pairs of magnetic attraction parts 2221 engages with another magnetic attraction surface 2131 of the yoke 213 in the direction perpendicular to the axial direction of the coil assembly 210, and the contact portion 100 is in a disconnected state. At this time, Figure 10 The first moving contact 112a separates from the first stationary contact 121a, and the second moving contact 112b separates from the second stationary contact 121b. Simultaneously, as... Figure 15 As shown, the auxiliary moving contact 310 in the auxiliary contact portion 300 is separated from the auxiliary stationary contact 320; at least one driving part 2212 is connected to the auxiliary moving contact 310.

[0145] Of course, in other embodiments, the contact portion 100 is in a closed state, and is not limited to a parallel circuit structure. For example, in another embodiment, the contact portion 100 includes a lead-out piece, a stationary contact, a moving contact piece, and a moving contact 111. The stationary contact is disposed on the lead-out piece, and the moving contact is disposed on the moving contact piece 111. The armature assembly 220 is used to drive the moving contact piece to move so that the moving contact contacts or separates from the stationary contact; the specific details will not be elaborated further.

[0146] Finally, it should be noted that the various embodiments / implementations provided by this utility model can be combined with each other without creating contradictions, and will not be described in detail here.

[0147] In the embodiments of the utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" 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 the utility model according to the specific circumstances.

[0148] In the description of the utility model embodiments, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model embodiments.

[0149] 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 utility model. 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.

[0150] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A relay characterized by comprising: include: The contact portion includes a moving contact and a stationary contact; The magnetic circuit section includes a coil assembly and an armature assembly; The armature assembly is disposed on at least one side of the coil assembly along a direction perpendicular to the axial direction of the coil assembly. The armature assembly includes a bracket and an armature body. The bracket includes a body portion and a drive portion. The armature body is mounted on the body portion. The drive portion is directly or indirectly connected to at least one of the moving contacts in the contact portion to drive the corresponding moving contact to contact or separate from the stationary contact. The auxiliary contact portion includes an auxiliary moving contact and an auxiliary stationary contact. The auxiliary moving contact is connected to and follows the driving part to contact or separate from the auxiliary stationary contact, thereby indicating the contact state of the contact portion.

2. The relay according to claim 1, characterized in that, The coil assembly further includes a yoke; the yoke has a magnetic attraction surface, and the direction of contact or separation between the auxiliary moving contact and the auxiliary stationary contact is set at a preset angle with at least one of the magnetic attraction surfaces, the preset angle being 80° to 90°.

3. The relay according to claim 2, characterized in that The armature body has at least one pair of magnetic attraction portions arranged opposite each other along the layout direction. Each of the pair of magnetic attraction portions is used to switch attraction with the magnetic attraction surfaces on both sides of the yoke in the layout direction. The auxiliary moving contact member contacts or disconnects from the auxiliary stationary contact member on at least one side along the layout direction of the at least one pair of magnetic attraction portions. And / or, the direction of contact or separation between the auxiliary moving contact and the auxiliary stationary contact is perpendicular to at least one of the magnetic attraction surfaces.

4. The relay according to claim 3, characterized in that The extension direction of the auxiliary moving contact forms a preset angle with the arrangement direction of at least one pair of magnetic attraction parts, the preset angle being 80° to 90°.

5. The relay of claim 4, wherein The auxiliary moving contact is a sheet-like structure, and the thickness direction of the auxiliary moving contact is parallel to the arrangement direction of at least one pair of magnetic attraction portions.

6. The relay of claim 5, wherein The auxiliary moving contact includes a fixed section and a free section connected to the fixed section along the extending direction. The auxiliary moving contact is connected to the driving part through the fixed section. The free section is provided with an auxiliary moving contact point, through which the auxiliary moving contact contact or separates from the auxiliary stationary contact.

7. The relay according to claim 6, characterized in that The free segment is further provided with a bending portion, which is located between the auxiliary moving contact and the fixed segment; and / or, the free segment is provided with at least two sub-segments arranged along the width direction of the auxiliary moving contact, and each sub-segment is provided with the auxiliary moving contact.

8. The relay according to claim 7, characterized in that The cross-sectional shape of the bent portion is U-shaped, and the opening of the U-shape is located on one side of the thickness direction of the auxiliary moving contact piece.

9. The relay of claim 6, wherein The auxiliary contact portion includes two auxiliary stationary contacts fixed relative to the coil assembly. The two auxiliary stationary contacts are spaced apart and located on both sides of the driving portion. The auxiliary moving contact is integrally mounted on the driving portion and has two free segments located on both sides of the length direction of the fixed segment. Each free segment is used to contact or separate from one of the auxiliary stationary contacts.

10. The relay of claim 6, wherein The drive unit is provided with a plug-in groove, and at least a portion of the fixing section of the auxiliary moving contact is inserted into and fixed in the plug-in groove.

11. The relay according to claim 10, characterized in that The fixing section has a protrusion on one side along the thickness direction; the fixing section is engaged in the insertion groove by the protrusion.

12. The relay of claim 10, wherein, At least a portion of the fixed section of the auxiliary moving contact engages within the insertion slot; the relay further includes an adhesive layer, at least a portion of which is located within the insertion slot and bonds the insertion slot to the fixed section.

13. The relay of claim 12, wherein, The relay also includes a housing, which includes a first housing having a receiving cavity for mounting the magnetic circuit portion and the contact portion, the receiving cavity having an opening.

14. The relay of claim 13, wherein At least a portion of the insertion slot between the auxiliary moving contact and the driving part is exposed in the opening.

15. The relay of claim 13, wherein, The housing also includes an auxiliary connecting plate, which is fixedly connected to one side of the opening of the first housing and is used to connect the armature assembly to guide the movement of the armature assembly; the auxiliary connecting plate is provided with an observation port, and at least a portion of the insertion slot is exposed in the observation port; the auxiliary stationary contact is fixedly inserted into the first housing and / or the auxiliary connecting plate.

16. The relay of claim 15, wherein, The auxiliary stationary contact is rod-shaped and is inserted into the auxiliary connecting plate and fixed by dispensing. The first housing has a limiting surface in its receiving cavity for abutting the auxiliary stationary contact to ensure the stability of the auxiliary stationary contact when it is abutted by the auxiliary moving contact.

17. The relay of claim 16, wherein The housing further includes a second housing, at least a portion of which is located on the side of the auxiliary connecting plate opposite to the first housing, and the second housing engages the opening; at least a portion of the auxiliary stationary contact extends through the second housing.

18. The relay of claim 6, wherein, The auxiliary moving contact and the driving part are integrally formed.

19. The relay of claim 1, wherein The contact portion is arranged on one side of the armature assembly in a direction perpendicular to the axial direction of the coil assembly, and the drive portion is directly connected to the corresponding moving contact in the contact portion; at least a portion of the drive portion extends along the body portion in the direction pointing to the contact portion to form a mounting section, and the auxiliary moving contact is connected to the mounting section.

20. The relay of claim 19, wherein, The bracket is an insulating bracket; the drive unit also includes a retaining wall structure, which is connected to the mounting section and located between the auxiliary moving contact and the moving contact, for increasing the air gap and creepage distance between the moving contact and the auxiliary stationary contact.

21. The relay of claim 20, wherein, The movable contact is provided with a pulling part, which is located on the side of the movable contact away from the stationary contact. The driving part is adapted to pull the pulling part to separate the movable contact and the stationary contact. The retaining wall structure is provided between the auxiliary movable contact and the pulling part.

22. The relay of claim 21, wherein, The body portion of the bracket is located on one side of the contact portion in the first direction, and the axial direction of the coil assembly is parallel to the second direction; the surface of the retaining wall structure in the third direction extends beyond the surface of the auxiliary moving contact in the third direction, and the third direction is perpendicular to the first direction and the second direction.

23. The relay of claim 22, wherein, The main body of the armature assembly can rotate about an axis parallel to the third direction.

24. The relay of claim 22, wherein, The armature assembly moves in a linear motion.

25. The relay of claim 23, wherein, The axis is located on the side of the armature body facing the contact portion in the first direction.

26. The relay of claim 25, wherein, The extension direction of the auxiliary moving contact intersects the axis.

27. The relay according to claim 23 or 24, characterized in that The armature body includes two armatures and a permanent magnet. The two armatures are respectively fixed to the two magnetic poles of the permanent magnet. The two armatures form an attraction part on both sides along the second direction. The driving part is located on the side of the two armatures facing the contact part in the first direction, and is located in the middle or one side of the body part along the second direction.

28. The relay of claim 20, wherein, The driving unit further includes a pushing section and a pulling section. The pushing section is connected to the side of the mounting section facing the moving contact and is configured to push the moving contact to move so that the moving contact contacts the stationary contact. The pulling section is connected to the pushing section and is configured to pull the moving contact to separate the moving contact from the stationary contact.

29. The relay of claim 1, wherein, The contact portion includes two moving contacts and two stationary contacts. The two moving contacts are a first moving contact and a second moving contact, and the two stationary contacts are a first stationary contact and a second stationary contact, wherein: The first stationary contact includes a first stationary contact point, and the second stationary contact includes a second stationary contact point; The second movable contact is arranged side by side with the first movable contact, the first stationary contact is connected to the second movable contact, and the second stationary contact is connected to the first stationary contact; the first movable contact is provided with a first movable contact point, and the second movable contact is provided with a second movable contact point, the positions of the first movable contact point and the first stationary contact point correspond, and the positions of the second movable contact point and the second stationary contact point correspond; The bracket includes at least two driving parts; one driving part is connected to the first moving contact to drive the corresponding first moving contact to contact or separate from the first stationary contact; the other driving part is connected to the second moving contact to drive the corresponding second moving contact to contact or separate from the second stationary contact; at least one driving part is connected to the auxiliary moving contact.

Images