Relay

Abstract

The invention relates to the technical field of electronic control devices, in particular to a relay. The relay comprises a contact part, a magnetic circuit part and an auxiliary contact part, wherein the contact part comprises a movable contact piece and a static contact piece; the magnetic circuit part comprises a coil assembly and an armature assembly; the armature assembly is arranged on at least part of one side of the coil assembly in the direction perpendicular to the axial direction of the coil assembly, and the armature assembly comprises a support and an armature body; the support comprises a body part and a driving part. The armature body is installed on the body part. The driving part is connected with at least one movable contact piece in the contact part so as to drive the corresponding movable contact piece to be in contact with or separated from the static contact piece; the auxiliary contact part comprises an auxiliary movable contact piece and an auxiliary static contact piece, and the auxiliary movable contact piece is connected with and follows the driving part so as to be in contact with or separated from the auxiliary static contact piece to indicate the contact state of the contact part. According to the relay, by optimizing the structure of the relay, the space independently occupied by the auxiliary switch in the relay can be reduced, so that the miniaturization design requirement of the relay is met.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic control devices, and in particular to a relay. Background Art

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

[0003] Relays typically feature an auxiliary switch. In existing technology, the auxiliary movable contact and auxiliary stationary contact are typically separately mounted on the base. The auxiliary movable contact engages or disengages with the auxiliary stationary contact by the push or release of an armature assembly or pusher. However, the auxiliary switch requires a separate mounting space, which occupies a large area and hinders the miniaturization of the relay. Summary of the Invention

[0004] An embodiment of the present invention provides a relay that can reduce the space occupied by an auxiliary switch inside the relay by optimizing its own structure, thereby meeting the miniaturization design requirements of the relay.

[0005] An embodiment of the present invention provides a relay, comprising: a contact portion, wherein the contact portion comprises a moving contact and a static contact;

[0006] a magnetic circuit portion, the magnetic circuit portion comprising a coil assembly and an armature assembly; the armature assembly being disposed on at least a portion of one side of the coil assembly in a direction perpendicular to the axial direction of the coil assembly, the armature assembly comprising a bracket and an armature body; the bracket comprising a main body portion and a drive portion, the armature body being mounted on the main body portion; the drive portion being directly or indirectly connected to at least one of the movable contacts within the contact portion to drive the corresponding movable contact to contact or separate from the static contact;

[0007] The auxiliary contact portion includes an auxiliary moving contact and an auxiliary static contact. The auxiliary moving contact is connected to and moves with the driving portion to contact or separate from the auxiliary static contact to indicate 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 surface, and the contact or disconnection direction of the auxiliary moving contact and the auxiliary static contact is set at a preset angle to at least one of the magnetic surfaces, and the preset angle is 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 a layout direction, each of the pair of magnetic attraction portions being configured to switchably engage with the magnetic attraction surfaces on both sides of the yoke in the layout direction; the auxiliary movable contact is in contact with or disconnected from the auxiliary static contact along at least one side of the layout direction of the at least one pair of magnetic attraction portions;

[0010] And / or, the contact or disconnection direction between the auxiliary movable contact and the auxiliary static contact is perpendicular to at least one of the magnetic surfaces.

[0011] According to some embodiments of the present invention, an extending direction of the auxiliary movable contact forms a preset angle with a layout direction of at least one pair of the magnetic attraction portions, and the preset angle is 80° to 90°.

[0012] According to some embodiments of the present invention, the auxiliary movable contact is a sheet-like structure, and a thickness direction of the auxiliary movable contact is parallel to an arrangement direction of at least one pair of the 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 extension direction, and the auxiliary moving contact is connected to the driving part through the fixed section; the free section is provided with an auxiliary moving contact, and the auxiliary moving contact contacts or separates from the auxiliary static contact through the auxiliary moving contact.

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

[0016] According to some embodiments of the present invention, the auxiliary contact portion includes two auxiliary static contacts fixed relative to the coil assembly, and the two auxiliary static contacts are arranged at intervals and located on both sides of the driving part; the auxiliary moving contact is installed as a whole on the driving part and has two free sections, and the two free sections are located on both sides of the fixed section in the length direction, and each free section is used to contact or separate with one of the auxiliary static contacts.

[0017] According to some embodiments of the present invention, the driving portion is provided with an inserting slot, and at least a portion of the fixed section of the auxiliary movable contact is inserted into and fixed in the inserting slot.

[0018] According to some embodiments of the present invention, a convex bulge is provided on one side of the fixing section along the thickness direction; the fixing section is engaged in the insertion groove through the convex bulge.

[0019] According to some embodiments of the present invention, at least a portion of the fixed section of the auxiliary dynamic contact is engaged in the plug-in slot; the relay further comprises an adhesive layer, at least a portion of which is located in the plug-in slot and bonds the plug-in 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 shell, the first shell being provided with an accommodating cavity for installing the magnetic circuit portion and the contact portion, the accommodating cavity having an opening.

[0021] According to some embodiments of the present invention, at least a portion of the plug-in slot of the auxiliary movable contact and the driving portion is exposed in the opening.

[0022] According to some embodiments of the present invention, the housing further includes an auxiliary connecting plate, which is fixedly connected to one side of the opening of the first shell and is connected to 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 part of the plug-in slot is exposed in the observation port; the auxiliary static contact is fixedly inserted into the first shell and / or the auxiliary connecting plate.

[0023] According to some embodiments of the present invention, the auxiliary static contact is rod-shaped, inserted into the auxiliary connecting plate and fixed by gluing; a limiting surface for abutting the auxiliary static contact is provided in the accommodating cavity of the first shell to ensure the stability of the auxiliary static contact when abutted by the auxiliary moving contact.

[0024] According to some embodiments of the present invention, the housing further includes a second shell, at least a portion of which is located on a side of the auxiliary connecting plate facing away from the first shell, and the second shell snaps into place with the opening; at least a portion of the auxiliary static contact passes through the second shell.

[0025] According to some embodiments of the present invention, the auxiliary movable contact and the driving part are an integrally formed structure.

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

[0027] According to some embodiments of the present invention, the bracket is an insulating bracket; the driving part also includes a retaining wall structure, which is connected to the mounting section and is 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 static contact.

[0028] According to some embodiments of the present invention, the moving contact is provided with a pulling portion, which is located on the side of the moving contact away from the static contact, the driving portion is suitable for pulling the pulling portion to separate the moving contact and the static contact, and the retaining wall structure is provided between the auxiliary moving contact and the pulling portion.

[0029] According to some embodiments of the present invention, the main body 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 exceeds the surface of the auxiliary dynamic 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 body of the armature assembly is rotatable about an axis parallel to the third direction.

[0031] According to some embodiments of the present invention, the armature assembly moves linearly.

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

[0033] According to some embodiments of the present invention, an extending direction of the auxiliary movable contact intersects with the axial center line.

[0034] According to some embodiments of the present invention, the armature body includes two armatures and a permanent magnet, and the two armatures are respectively fixed to the two magnetic poles of the permanent magnet; the two armatures form a suction portion on both sides along the second direction, and 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 one side of the main body along the second direction.

[0035] According to some embodiments of the present invention, the driving portion further includes a pushing section and a pulling section, wherein the pushing section is connected to the side of the mounting section toward the moving contact member, and is configured to push the moving contact member to move so that the moving contact member contacts the static contact member; the pulling section is connected to the pushing section, and is configured to pull the moving contact member so that the moving contact member is separated from the static contact member.

[0036] According to some embodiments of the present invention, the contact portion includes two moving contacts and two static contacts, the two moving contacts are a first moving contact and a second moving contact, and the two static contacts are a first static contact and a second static contact, wherein:

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

[0038] The second moving contact is arranged side by side with the first moving contact, the first static contact is connected to the second moving contact, and the second static contact is connected to the first static contact; the first moving contact is provided with a first moving contact point, and the second moving contact is provided with a second moving contact point, the first moving contact point corresponds to the position of the first static contact, and the second moving contact point corresponds to the position of the second static contact;

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

[0040] One embodiment of the above invention has at least the following advantages or beneficial effects:

[0041] 1. The relay provided in the present application utilizes the driving part on the armature assembly for driving 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 a separate space for installing the auxiliary contact part or to set up a structure for installing the auxiliary contact part on the armature assembly or other moving parts. Therefore, space can be saved, which is conducive to the miniaturization of the relay.

[0042] Furthermore, the auxiliary movable contact follows the armature assembly via a bracket. This structural design improves the stability of the auxiliary movable contact, thereby enhancing the accuracy of contact or disconnection between the auxiliary movable contact and the auxiliary static contact. Furthermore, compared to conventional relays where the auxiliary movable contact relies on its own deformation recovery to disconnect with the auxiliary static contact, this relay eliminates the need for a large contact distance between the auxiliary movable contact and the auxiliary static contact to ensure reliable disconnection. This reduces the distance between the auxiliary movable contact and the auxiliary static contact in the contact direction, thereby conserving space for the auxiliary contact to move, and further facilitating the miniaturization of the relay.

[0043] 2. In the relay provided in the present application, the yoke has a magnetic surface, and the direction of contact or disconnection between the auxiliary moving contact and the auxiliary static contact is at a preset angle with at least one magnetic surface, and the preset angle is 80°~90°, so that the movement direction of the auxiliary moving contact is as close as possible to the movement direction of the armature assembly, and the movement of the armature assembly is utilized to the maximum extent to achieve reliable contact or disconnection with the auxiliary static contact, that is, the conversion rate of the effective stroke is high, thereby avoiding the problem of increasing the distance between the auxiliary moving contact and the auxiliary static contact and increasing the installation space due to the auxiliary moving contact utilizing the lateral movement of the armature assembly to contact or disconnect with the auxiliary static contact, improving the integration between the structural parts in the relay, and facilitating the miniaturization of the relay. In addition, it also 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 contact or disconnection direction between the auxiliary moving contact and the auxiliary static contact is to being perpendicular to at least one magnetic surface, the higher the conversion efficiency of the effective motion stroke between the armature assembly and the auxiliary moving contact, and the more conducive to saving installation space.

[0044] 3. In the relay provided herein, the auxiliary movable contact engages or disengages the auxiliary static contact along at least one side of the arrangement direction of at least one pair of magnetically engaging portions. Consequently, the direction of the auxiliary movable contact's effective contact and disconnection strokes is consistent or approximately consistent with the direction of the armature assembly's effective travel. This improves the conversion rate of the effective travel, thereby saving space, increasing the integration of internal relay components, and facilitating miniaturization of the relay.

[0045] 4. In the relay provided in the present application, the extension direction of the auxiliary movable contact forms a preset angle with the layout direction of at least one pair of magnetic attraction parts, so that the extension direction of the auxiliary movable contact does not occupy too much space in the movement direction of the armature assembly, thereby reducing the space required for the auxiliary movable contact to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Shown is a schematic diagram of the exploded structure of a relay provided in an embodiment of the present application;

[0047] Figure 2 Shown is Figure 1 Schematic diagram of the three-dimensional structure after the middle part structure is assembled;

[0048] Figure 3 Shown is Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0049] Figure 4 Shown is Figure 1 A schematic diagram of the three-dimensional structure of the armature assembly with the auxiliary moving contact installed;

[0050] Figure 5Shown is Figure 4 Explosion diagram of the structure;

[0051] Figure 6 Shown is Figure 1 Schematic diagram of the three-dimensional structure after the middle structure is assembled;

[0052] Figure 7 The figure shows a schematic structural diagram of the auxiliary connecting plate and the armature assembly of the relay provided in an embodiment of the present application after assembly;

[0053] Figure 8 The figure shows a schematic structural diagram of the auxiliary connecting plate and the first housing of the relay provided in an embodiment of the present application after being assembled;

[0054] Figure 9 Shown is Figure 8 A magnified schematic diagram of point B in the middle;

[0055] Figure 10 Shown is an exploded schematic diagram of the contact portion of a relay provided in an embodiment of the present application;

[0056] Figure 11 Shown is Figure 10 Schematic diagram of the structure after the middle structure is assembled;

[0057] Figure 12 The figure shows a schematic diagram of the structure of the relay provided by the embodiment of the present application when the internal contact part is in a closed state;

[0058] Figure 13 Shown is Figure 12 The enlarged schematic diagram of point D in the middle;

[0059] Figure 14 The figure shows a schematic diagram of the structure of the relay provided by the embodiment of the present application when the contact part is in the disconnected state;

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

[0061] The following are the descriptions of the reference numerals:

[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; 112b, second moving contact; 113, pulling portion; 120, stationary contact; 120a, first stationary contact; 120b, second stationary contact; 121, stationary contact; 121a, first stationary contact; 121b, second stationary contact; 122a, first lead piece; 122b, second lead piece;

[0063] 200, magnetic circuit; 210, coil assembly; 211, coil bobbin; 212, winding; 213, yoke; 2131, magnetic surface; 220, armature assembly; 221, bracket; 2211, main body; 2212, drive unit; 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 attraction section; 223, permanent magnet;

[0064] 300, auxiliary contact portion; 310, auxiliary moving contact; 311, fixed section; 312, free section; 313, auxiliary moving contact; 314, bent portion; 315, convex bud; 320, auxiliary static contact;

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

[0066] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0067] An embodiment of the present application provides a relay, which may be a magnetic latching relay, but is not limited thereto. Figure 1 The figure shows the exploded structure of the relay provided in the embodiment of the present 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 in a housing 400 .

[0068] Figure 2 Shown is Figure 1 Schematic diagram of the three-dimensional structure after the middle part structure is assembled; Figure 3 Shown is Figure 2 The enlarged structural diagram of A in the middle. Figure 2 and Figure 3 refer to Figure 1In the relay provided in the embodiment of the present application, the contact portion 100 includes a movable 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 in 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 2211 and a driving portion 2212. The armature body 222 is mounted on the body 2211. The driving portion 2212 is directly or indirectly connected to at least one movable contact 110 in the contact portion 100 to drive the corresponding movable contact 110 into contact with or out of contact with the stationary contact 120. An auxiliary movable contact 310 is provided on all or part of the driving portion 2212. The auxiliary contact portion 300 includes an auxiliary movable contact 310 and an auxiliary stationary contact 320. The auxiliary movable contact 310 is connected to and moves with the driving portion 2212 to contact or separate from the auxiliary stationary contact 320, thereby indicating the contact state of the contact portion 100. The auxiliary movable contact 310 can be partially connected to the driving portion 2212 or integrally mounted thereto.

[0069] For example, Figure 1 and Figure 2 As shown, the coil assembly 210 includes a coil bobbin 211 and a winding 212 wound on the surface of the coil bobbin 211. It should be understood that the "axial direction of the coil assembly 210" can be defined as the extension direction of the axis of the winding 212. 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 the embodiment of the present application uses the driving part 2212 on the armature assembly 220 for driving the moving contact 110 to move 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 a separate space for installing the auxiliary contact part 300 or to set up a structure for installing the auxiliary contact part 300 on the armature assembly 220 or other moving parts. Therefore, space can be saved, which is conducive to the miniaturization of the relay.

[0071] Furthermore, the auxiliary movable contact 310 follows the armature assembly 220 via the bracket 221. This structural design improves the stability of the auxiliary movable contact 310, thereby improving the accuracy of contact or disconnection between the auxiliary movable contact 310 and the auxiliary static contact 320. Furthermore, compared to conventional relays in which the auxiliary movable contact 310 relies on its own deformation recovery ability to disconnect from the auxiliary static contact 320, this relay eliminates the need to set the contact distance between the auxiliary movable contact 310 and the auxiliary static contact 320 to a greater distance to ensure reliable disconnection. This reduces the distance between the auxiliary movable contact 310 and the auxiliary static contact 320 in the contact direction, thereby reducing the space available for the auxiliary contact portion 300 to move, which in turn facilitates miniaturization of the relay.

[0072] In one embodiment, please refer to Figures 2 to 3 In the structure shown, the coil assembly 210 further includes two yokes 213. For example, 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 in FIG. 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 of the two sides of the coil frame 211 along the axial direction of the coil assembly 210. The yoke 213 has a magnetic surface 2131. The direction of contact or disconnection between the auxiliary movable contact 310 and the auxiliary static contact 320 is arranged at a preset angle with respect to at least one of the magnetic surfaces 2131. The preset angle is 80° to 90°. The preset angle may be, but is not limited to, any of the following angles: 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, or 90°.

[0073] In another embodiment, the contact or disconnection direction between the auxiliary movable contact 310 and the auxiliary static contact 320 is perpendicular to at least one magnetic surface 2131. Considering the error problem in actual production and manufacturing, it can also be considered to be approximately vertical (for example, 90°±5°).

[0074] It should be noted that the structural setting in the embodiment of the present application makes the movement direction of the auxiliary moving contact 310 as close as possible to the movement direction of the armature assembly 220, and maximizes the use of the movement of the armature assembly 220 to achieve reliable contact or disconnection with the auxiliary static contact 320, that is, the conversion rate of the effective stroke is high, thereby avoiding the problem of increasing the distance between the auxiliary moving contact 310 and the auxiliary static contact 320 and increasing the installation space due to the auxiliary moving contact 310 utilizing the lateral movement of the armature assembly 220 to contact or disconnect with the auxiliary static contact 320, thereby improving the integration between the structural parts in the relay and facilitating 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. Among them, the closer the contact or disconnection direction between the auxiliary movable contact 310 and the auxiliary static contact 320 is to perpendicularity to at least one magnetic surface 2131, the higher the conversion efficiency of the effective motion stroke between the armature assembly 220 and the auxiliary movable contact 310, and the more conducive to saving installation space.

[0075] The contact or disconnection direction between the auxiliary movable contact 310 and the auxiliary static contact 320 may be understood as the normal direction of the position where the auxiliary static contact 320 contacts the auxiliary movable contact 310 .

[0076] In one embodiment, please refer to Figure 3 In the structure shown, the armature body 222 has at least one pair of magnetic attraction parts 2221 arranged relative to each other along the layout direction, and each magnetic attraction part 2221 in a pair of magnetic attraction parts 2221 is used to switch and attract 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 with the auxiliary static contact 320 along at least one side of the layout direction of at least one pair of magnetic attraction parts 2221, so that the auxiliary moving contact 310 can effectively extend its length by utilizing the space on both sides of the driving part 2212, so as to reduce the reaction force acting on the armature assembly 220 when the auxiliary moving contact 310 contacts the auxiliary static contact 320, and avoid the need to provide a larger operating voltage to the armature assembly 220, thereby reducing energy consumption.

[0077] It should be noted that in the relay provided in the embodiment of the present application, the direction of the effective contact and disconnection stroke of the auxiliary movable contact 310 is consistent or approximately consistent with the direction of the effective movable stroke of the armature assembly 220. This improves the conversion rate of the effective stroke, thereby saving space, improving the integration of the internal components of the relay, and facilitating the miniaturization of the relay.

[0078] Figure 4 Shown is Figure 1 Schematic diagram of the three-dimensional structure of the armature assembly 220 with the auxiliary moving contact 310 installed. Figure 4As shown, the armature body 222 is exemplarily shown as having two pairs of magnetic attraction portions 2221. Of course, the armature body 222 can also be arranged in a manner similar to Figure 4 For example, the armature body 222 only has a pair of magnetic attraction portions 2221 , which will not be described in detail.

[0079] It is worth noting that in order to more clearly understand the layout direction of the pair of magnetic attraction parts 2221, Figure 4 In the figure, a dotted line is used as an example to mark between the two magnetic attraction parts 2221.

[0080] In one embodiment, please refer to Figure 4 In the structure shown, the extension direction of the auxiliary movable contact 310 forms a preset angle with the layout direction of at least one pair of magnetic attraction parts 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 as needed. 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, any one of the following angles: 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, or 90°.

[0082] When setting the auxiliary moving contact 310, there are many possibilities for the structure of the auxiliary moving contact 310. In order to reduce the space occupied by the auxiliary moving contact 310 in the relay, it is beneficial to miniaturize the setting. In one embodiment, Figure 3 and Figure 4 As shown, the auxiliary movable contact 310 is a sheet-like structure.

[0083] In combination with the sheet structure of the auxiliary moving contact piece 111, in a specific embodiment, it can be set that: the thickness direction of the auxiliary moving contact 310 is parallel to the layout direction of at least one pair of magnetic attraction parts 2221. It can also be understood that the thickness direction of the auxiliary moving contact 310 is perpendicular to the magnetic attraction surface 2131 of at least one yoke 213, so as to further reduce the space occupied by the auxiliary moving contact 310 in the moving direction, and at the same time ensure that the auxiliary moving contact 310 has good elastic deformation ability, reducing the reaction force acting on the armature assembly 220 when it contacts the auxiliary static contact 320, thereby avoiding the need to provide a larger action voltage to the armature assembly 220 and reducing energy consumption.

[0084] Figure 5 Shown is Figure 4 Explosion diagram of the structure. Figure 5 refer to Figure 4In the structure shown in , in one embodiment, the auxiliary moving contact 310 includes a fixed section 311 and a free section 312 connected to the fixed section 311 along the extension direction. The auxiliary moving contact 310 is connected to the driving portion 2212 through the fixed section 311, providing a stable support and fixing point for the auxiliary moving contact 310; the free section 312 is provided with an auxiliary moving contact 313, and the auxiliary moving contact 310 is connected to, for example, the auxiliary moving contact 313 through the auxiliary moving contact 313. Figure 3 The auxiliary static contact 320 in the embodiment is in contact or separated.

[0085] It should be noted that the connection between the fixed segment 311 and the driver 2212 provides stable support and a fixed point for the auxiliary movable contact 310. The free segment 312 is connected to the fixed segment 311 along its extension direction. This structure allows the free segment 312 to move freely and flexibly. Under the action of the driver 2212, the free segment 312 can move more flexibly, thereby achieving precise contact and separation between the auxiliary movable contact 313 and the auxiliary static contact 320.

[0086] In one embodiment, please refer to Figure 4 and Figure 5 In the structure shown, the free section 312 is further provided with a bent portion 314 , and the bent portion 314 is located between the auxiliary movable contact 313 and the fixed section 311 .

[0087] It should be noted that the bending portion 314 can ensure that the auxiliary movable contact 310 also has a large overtravel when the armature assembly 220 exceeds the travel, so that the auxiliary movable contact 310 and, for example, Figure 3 The auxiliary static contact 320 shown has reliable contact and can weaken the elastic force of the auxiliary movable contact 310 during deformation, thereby reducing the reaction force of the auxiliary movable 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, Figure 4 and Figure 5 As shown, the bent portion 314 has a U-shaped cross-section, with the U-shaped opening located on one side of the auxiliary movable contact piece 111 in the thickness direction. This fully utilizes the space in the direction of movement of the auxiliary movable contact 310, facilitating a miniaturized relay design. Furthermore, this design provides the auxiliary movable contact 310 with greater flexibility in the thickness direction, thereby reducing the reaction force on the armature assembly 220.

[0089] It is worth noting that the U-shaped opening can be set according to the needs, that is, it can be directed towards the contact portion 100 or as shown in FIG. Figure 3 The contact portion 100 is shown as being away from the contact portion 100 to reasonably utilize the space inside the relay, and the details thereof will not be repeated.

[0090] Please continue to refer to Figure 4 and Figure 5 In the structure shown, in one embodiment, the auxiliary contact portion 300 includes two auxiliary static contacts 320 fixed relative to the coil assembly 210, the two auxiliary static contacts 320 are spaced apart and located on both sides of the driving portion 2212; the auxiliary movable contact 310 is integrally mounted on the driving portion 2212 and has two free sections 312, the two free sections 312 are located on both sides of the length direction of the fixed section 311, and each free section 312 is used to contact an example Figure 3 The auxiliary static contact 320 is shown to be in contact or separated, wherein the length direction of the fixed section 311 is the extension direction of the auxiliary movable contact 310 .

[0091] It should be noted that in this embodiment, the two free segments 312 of the auxiliary movable contact 310 are respectively used to contact or separate with the auxiliary static contacts 320 located on both sides of the driving portion 2212, and the contact state of the two free segments 312 with their corresponding auxiliary static contacts 320 is consistent. That is, when the auxiliary movable contact 310 approaches the two auxiliary static contacts 320, the two free segments 312 respectively contact their respective auxiliary static contacts 320, and the two auxiliary static contacts 320 are electrically conductive with each other. When the auxiliary movable contact 310 moves away from the two auxiliary static contacts 320, the two free segments 312 respectively separate from their respective auxiliary static contacts 320, and the two auxiliary static contacts 320 are disconnected from each other. This structural arrangement can rationally utilize space and balance the forces on both sides of the driving portion 2212, avoiding stress concentration caused by the driving portion 2212 always being subjected to force on one side, which could affect the structural strength and the stability of the connection with the auxiliary movable contact 310.

[0092] It is worth noting that in this embodiment, the electrical signals of the auxiliary contact portion 300 are transmitted by the two auxiliary static contacts 320 as terminals, eliminating the need for terminals on the movable contact 110 for external transmission of electrical signals. Therefore, the auxiliary movable contact 310 can be fully mounted and moved with the drive portion 2212. Compared to a structure in which one portion of the auxiliary movable contact 310 is mounted on the armature assembly 220 and the other portion is mounted on the housing to lead out terminals, the auxiliary movable contact 310 does not generate a reaction force on the armature assembly 220 during the entire opening or closing process. Instead, it only generates a reaction force on the armature assembly 220 when in contact with the auxiliary static contact 320. Therefore, the normal movement of the armature assembly 220 is less affected.

[0093] In one embodiment, the free segment is provided with at least two sub-segments arranged along the width direction of the auxiliary moving contact 310 , and each sub-segment is provided with an auxiliary moving contact 313 , further reducing the reaction force and improving the reliability of contact with the auxiliary static contact 320 .

[0094] For example, 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 facing away from the fixed segment 311). Specifically, the two sub-segments are separated by a notch, and each sub-segment is equipped with an auxiliary movable contact 313 to engage or disengage with the auxiliary static contact 320, ensuring reliable contact between the auxiliary movable contact 310 and the auxiliary static contact 320. It should be understood that the number of sub-segments within the free segment 312 can also be set to other numbers, and the details are not repeated here.

[0095] In addition, the auxiliary contact portion 300 may include only one auxiliary static contact 320 , and the auxiliary movable contact 310 may have only one free section 312 to contact or separate from the auxiliary static contact 320 . Details will not be repeated here.

[0096] When the auxiliary movable contact 310 and the driving portion 2212 are specifically arranged, there are many possible connection relationships between the two, at least one of the following structural forms.

[0097] Structural form 1, such as Figure 4 and Figure 5 As shown, the driving portion 2212 is provided with an inserting slot 2212 - 4 , and at least a portion of the fixed section 311 of the auxiliary moving contact is inserted into and fixed in the inserting slot 2212 - 4 .

[0098] It should be noted that the insertion slot 2212 - 4 is used to fix the auxiliary movable contact 310 in this structural form 1, so that the fixing section 311 of the auxiliary movable contact 310 can be quickly inserted and fixed on the driving part 2212 , which can improve assembly efficiency and reduce installation costs.

[0099] When setting the plug-in slot 2212-4, the inner wall surface of the plug-in slot 2212-4 can be set to form a protruding structure or a recessed structure as required, so as to provide precise positioning and guidance for the fixed section 311 of the auxiliary movable contact 310 during the insertion process and provide precise limitation along the thickness direction of the auxiliary movable contact 310 after insertion. The details will not be repeated here.

[0100] In one embodiment, please refer to Figure 4 and Figure 5 In the illustrated structure, a protrusion 315 is provided on one side of the fixing section 311 along the thickness direction; the fixing section 311 is engaged in the insertion slot 2212-4 via the protrusion 315. The protrusion 315 acts as a pre-tightening force, preventing the auxiliary movable contact 310 from falling out of the insertion slot 2212-4, allowing for subsequent glue dispensing operations.

[0101] It should be noted that the design of the protrusion 315 allows the size of the insertion groove 2212-4 to be larger in the thickness direction of the fixing section 311. This structural arrangement can reduce the risk of mold damage, lowering the difficulty and cost of production; on the other hand, it can increase the adhesive space, thereby improving the adhesive layer's bonding stability between the auxiliary movable contact 310 and the driving portion 2212.

[0102] In one embodiment, at least a portion of the fixed section 311 of the auxiliary movable contact 310 engages within the insertion slot 2212-4. Specifically, the fixed section 311 and the insertion slot 2212-4 create an interference fit, allowing the fixed section 311 to fit tightly within the insertion slot 2212-4, forming a very secure connection. This provides reliable pre-tightening and anti-dropout protection before glue dispensing. Furthermore, during operation, even if subjected to 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, it can also be set that: the relay provided in the embodiment of the present application also includes a glue layer. Figure 4 and Figure 5 At least part of the adhesive layer is located in the plug-in slot 2212-4 and bonds the plug-in slot 2212-4 and the fixed section 311, so as to improve the connection stability between the auxiliary dynamic contact 310 and the driving part 2212 by bonding, thereby improving the contact stability of the auxiliary contact part 300.

[0104] It should be understood that the fixed section 311 bonded by the adhesive layer may be provided with a bulge 315 or not, and the fixed section 311 may be interference fit with the insertion groove 2212-4 or simply plugged in. In addition, the fixed section 311 may be fixed by the adhesive layer or not when it is interference fit with the insertion groove 2212-4.

[0105] Figure 6 Shown is Figure 1 Schematic diagram of the three-dimensional structure after the structure is assembled. In one embodiment, please combine Figure 6 refer to Figure 1 In the structure shown, the relay further comprises a housing 400 , which comprises a first shell 410 . The first shell 410 is provided with an accommodating cavity for installing the contact portion 100 , the magnetic circuit portion 200 and the auxiliary contact portion 300 . The accommodating cavity has an opening 411 .

[0106] In one embodiment, if Figure 1 and Figure 6As shown, the housing 400 may include a first shell 410 and a second shell 420, which are connected together to form a hollow chamber. The shape of the first shell 410 and the second shell 420 after being connected can have various embodiments. For example, in the embodiment of the present application, the shape of the first shell 410 and the second shell 420 after being connected is a hollow rectangular parallelepiped. Of course, in other embodiments, the shape of the first shell 410 and the second shell 420 after being connected can also be a hollow cylinder, or other suitable shape, which will not be repeated in detail.

[0107] As an example, Figure 1 and Figure 6 As shown, the first housing 410 is in the shape of a rectangular parallelepiped with an opening 411. The contact portion 100, the magnetic circuit portion 200, and the auxiliary contact portion 300 are installed in the accommodating cavity of the first housing 410 through the opening 411 of the first housing 410. The second housing 420 is a cover structure that is snapped onto the opening 411 of the first housing 410 to form a hollow rectangular parallelepiped.

[0108] Of course, in other embodiments, the first shell 410 and the second shell 420 can both be in the shape of a rectangular parallelepiped and have an opening on one side. The opening of the first shell 410 and the opening of the second shell 420 are arranged opposite to each other, and the first shell 410 and the second shell 420 are snapped together to form a hollow chamber, which will not be described in detail.

[0109] In one embodiment, Figure 4 At least a portion of the auxiliary movable contact 310 and the insertion slot 2212-4 of the driving portion 2212 is exposed as shown in FIG. Figure 1 The opening 411 is shown, so that the glue dispensing operation can be performed on the plug slot 2212-4 and the auxiliary movable contact 310 through the opening 411. Specifically, this structural setting can save the glue dispensing step, so that the glue dispensing operation of the auxiliary movable contact 310 and the driving part 2212 can be performed synchronously with other glue dispensing operations.

[0110] In another embodiment, please refer to Figure 1 In the structure shown, the housing 400 further 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 figure shows a schematic structural diagram of the auxiliary connecting plate 430 and the armature assembly 220 in the relay provided in an embodiment of the present application after being assembled; Figure 8 1. The figure shows a schematic structural diagram of the auxiliary connecting plate 430 and the first housing 410 after being assembled in the relay provided in an embodiment of the present application; Figure 9 Shown is Figure 8 The enlarged diagram of point B in the middle. Please continue to refer to Figure 1 as well as Figure 7 、 Figure 8 and Figure 9 In the illustrated 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 movable contact 310 and the auxiliary static contact 320, and also reduces the need for glue dispensing. Specifically, after the auxiliary connecting plate 430 is assembled relative to the first housing 410, glue dispensing between the auxiliary movable contact 310 and the drive unit 2212 can be performed through the observation port 431, synchronizing with other glue dispensing operations.

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

[0113] For example, the auxiliary movable contact 310 and the driving portion 2212 may be formed into an integrally formed structure by injection molding to reduce manufacturing difficulty and cost.

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

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

[0116] like Figure 1 and Figure 6 As shown, exemplarily, when the housing 400 further includes a second shell 420 , at least a portion of the second shell 420 is located on the side of the auxiliary connecting plate 430 facing away from the first shell, and the second shell 420 snaps into place with the opening; at least a portion of the auxiliary static contact 320 passes through the second shell 420 .

[0117] In one embodiment, Figure 2 and Figure 3 As shown, the contact portion 100 is arranged on one side of the armature assembly 220 in a direction perpendicular to the axial direction of the coil assembly 210, and the driving portion 2212 is directly connected to the corresponding movable contact 110 in the contact portion 100. It should be understood that direct connection can further reduce the occupied space, thereby facilitating miniaturization of the relay.

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

[0119] Of course, the auxiliary moving contact 310 can also be provided with two free sections 312 to avoid the need to lead 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 amount required to occur during the movement of the auxiliary moving contact 310, thereby weakening the reaction force on the armature assembly 220. The details will not be repeated here.

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

[0121] Please combine Figure 4 and Figure 5 refer to Figure 3 In the structure shown, in one embodiment, the driving part 2212 also includes a retaining wall structure 2212-5, which is connected to the mounting section 2212-1 and is located between the auxiliary moving contact 310 and the moving contact 110, and is used to increase the air gap and creepage distance between the moving contact 110 and the auxiliary static contact 320.

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

[0123] In one embodiment, Figure 3As shown, the moving contact 110 is provided with a pulling portion 113, which is located on the side of the moving contact 110 away from the static contact 120, and the driving portion 2212 is adapted to pull the pulling portion 113 to separate the moving contact 110 and the static contact 120, as shown in FIG. Figure 13 As shown, the retaining wall structure 2212 - 5 is provided between the auxiliary movable contact 310 and the pulling portion 113 to increase the air gap and creepage distance between the auxiliary movable contact 310 and the pulling portion 113 , thereby improving safety performance.

[0124] In one embodiment, Figure 2 As shown, the main body 2211 of the bracket 221 is located on one side of the contact part 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 retaining wall structure 2212-5 in the third direction Z exceeds the surface of the auxiliary dynamic 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 dimension of the retaining wall structure 2212 - 5 in the third direction Z is limited to exceed the auxiliary dynamic 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 In the structure shown, the main body 2211 of the armature assembly 220 can rotate around an axial line parallel to the third direction Z, that is, the armature assembly 220 forms a rotating structure, and each magnetic attraction portion 2221 in a 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 be attracted to different magnetic surfaces 2131 of the yoke 213 in the first direction Y.

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

[0129] It should be noted that the position at which the armature assembly 220 is rotatably connected to the housing 400 is offset. For example, the axis of the armature assembly 220 is located closer to the auxiliary movable contact 310 along the first direction Y. In this case, the auxiliary movable contact 310 is closer to the axis in the first direction Y. This structural arrangement can reduce the swing angle of the auxiliary movable contact 310 and thus the area occupied by the auxiliary movable contact 310 during its swinging process, thereby saving space and facilitating a miniaturized relay configuration.

[0130] In one embodiment, the extension direction of the auxiliary moving contact 310 intersects with the axis centerline to minimize the displacement components occupied in the radial and chordal directions during the swinging process of the auxiliary moving contact 310, reduce the space required for the auxiliary moving contact 310 during the swinging process, further save space and facilitate the miniaturization of the relay. In addition, this structural setting also enables the movement of the auxiliary moving contact 310 to be highly synchronized with the swinging of the armature assembly 220, so as to effectively avoid the problem of poor contact or incomplete separation of the auxiliary contact part 300 due to asynchronous movement or path deviation, and can provide 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. Figure 4 and Figure 5 refer to Figure 3 In the structure shown, a magnetic attraction portion 2221 is formed on each side of the two armatures along the second direction X. Each magnetic attraction portion 2221 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 layout direction. The driving portion 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 one side of the main body 2211 along the second direction X. Figure 4 As shown, in the example provided in this embodiment, the driving portion 2212 is located on one side of the main body 2211 along the second direction X. This facilitates docking with the movable end of the movable contact 110 in the contact portion 100 and enables a compact arrangement. Furthermore, based on this, the auxiliary movable contact 310 is also located on one side of the main body 2211 along the second direction X.

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

[0133] In one embodiment, as shown in FIG. Figure 4 and Figure 5As shown, the driving portion 2212 further includes a pushing section 2212-2 and a pulling section 2212-3. The pushing section 2212-2 is connected to the side of the mounting section 2212-1 facing the movable contact 110 and is configured to push the movable contact 110 to move so that the movable 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 movable contact 110 so that the movable contact 110 separates 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 a dotted line in the drawings, and the present invention is not limited thereto.

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

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

[0136] In one embodiment, Figure 1 As shown, the contact portion 100 includes two moving contacts 110 and two stationary contacts 120. For ease of description of the two moving contacts 110 and two stationary contacts 120 in the contact portion 100, please refer to FIG. Figure 1 refer to Figure 10 and Figure 11 The structure shown, Figure 1 The two moving contacts 110 are Figure 10 and Figure 11 The first moving contact 110a and the second moving contact 110b are used as examples. Figure 1 The two static contacts 120 Figure 10 and Figure 11 The first stationary contact 120a and the second stationary contact 120b are specifically exemplified.

[0137] Among them: Figure 10 and Figure 11 As shown, the first static contact 120a includes a first static contact point 121a, and the second static contact 120b includes a second static contact point 121b. Figure 11 As shown, the second moving contact 110b is arranged side by side with the first moving contact 110a, and illustratively, they are arranged side by side along the thickness direction of the first moving contact 110a and the second moving contact 110b. Figure 10As shown, the first static contact 120a is connected to the second moving contact 110b, and the second static contact 120b is connected to the first static 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 first moving contact 112a corresponds to the position of the first static contact 121a, and the second moving contact 112b corresponds to the position of the second static contact 121b.

[0138] As an example, the first movable contact 112a may be mounted on the first movable contact piece 111a by riveting, and the second movable contact 112b may be mounted on the second movable contact piece 111b by riveting, but the present invention is not limited thereto.

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

[0141] Please continue to refer to Figure 10 and Figure 11 In the structure shown, the first static contact 120a further includes a first lead-out piece 122a, and the second static contact 120b further includes a second lead-out piece 122b. The first lead-out piece 122a and the second lead-out piece 122b are respectively used to electrically connect to the positive and negative electrodes of the load. Figure 12 As shown, a portion of the first lead-out piece 122 a extends out of the outer surface of the housing 400 , and a portion of the second lead-out piece 122 b extends out of the outer surface of the housing 400 .

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

[0143] As an example, Figures 12 to 13As shown, when one of the two pairs of magnetic attraction portions 2221 is attracted to the magnetic attraction surface 2131 of the yoke 213, the contact portion 100 is in a closed state. Figure 10 The first movable contact 112a will contact the first static contact 121a, and the second movable contact 112b will contact the second static contact 121b. Figure 13 As shown, the auxiliary movable contact 310 in the auxiliary contact portion 300 is in contact with the auxiliary static contact 320 .

[0144] When the armature assembly 220 rotates around the axis, compared to Figure 12 Switch to the middle position Figure 14 In the middle position, Figure 14 and Figure 15 As shown, the other magnetic attraction portion 2221 of the two pairs of magnetic attraction portions 2221 is attracted to the other 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. Figure 10 The first movable contact 112a is separated from the first static contact 121a, and the second movable contact 112b is separated from the second static contact 121b. Figure 15 As shown, the auxiliary movable contact 310 and the auxiliary static contact 320 in the auxiliary contact portion 300 are separated; at least one driving portion 2212 is connected to the auxiliary movable 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 plate, a stationary contact, a movable contact plate, and a movable contact. The stationary contact is located on the lead plate, and the movable contact is located on the movable contact plate 111. The armature assembly 220 is used to drive the movable contact plate to move, thereby causing the movable contact to contact or separate from the stationary contact. The details are not further described.

[0146] Finally, it should be noted that: it is understandable that the various embodiments / implementations provided by the present invention can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0147] In the embodiments of the invention, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the invention based on the specific circumstances.

[0148] In the description of the embodiments of the invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the invention.

[0149] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0150] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A relay, characterized in that: include: A contact portion, comprising a moving contact and a stationary contact; A magnetic circuit portion, comprising a coil assembly and an armature assembly; The armature assembly is provided on at least a portion of one side of the coil assembly in a direction perpendicular to the axial direction of the coil assembly, the armature assembly comprising a bracket and an armature body; the bracket comprising a main body portion and a driving portion, the armature body being mounted on the main body portion; the driving portion being directly or indirectly connected to at least one of the movable contacts in the contact portion to drive the corresponding movable contact to contact or separate from the static contact; The auxiliary contact portion includes an auxiliary moving contact and an auxiliary static contact. The auxiliary moving contact is connected to and moves with the driving portion to contact or separate from the auxiliary static contact to indicate the contact state of the contact portion.

2. The relay according to claim 1, wherein: The coil assembly further includes a yoke; the yoke has a magnetic surface, and the contact or disconnection direction of the auxiliary moving contact and the auxiliary static contact is set at a preset angle with at least one of the magnetic surfaces, and the preset angle is 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 to each other along the layout direction, each of the pair of magnetic attraction portions being configured to switchably engage with the magnetic attraction surfaces on both sides of the yoke in the layout direction; the auxiliary movable contact is in contact with or disconnected from the auxiliary static contact along at least one side of the layout direction of the at least one pair of magnetic attraction portions; And / or, the contact or disconnection direction between the auxiliary movable contact and the auxiliary static contact is perpendicular to at least one of the magnetic surfaces.

4. The relay according to claim 3, characterized in that An extending direction of the auxiliary movable contact forms a preset angle with a layout direction of at least one pair of the magnetic attraction portions, and the preset angle is 80° to 90°.

5. The relay according to claim 4, characterized in that The auxiliary movable contact is a sheet-like structure, and a thickness direction of the auxiliary movable contact is parallel to an arrangement direction of at least one pair of magnetic attraction portions.

6. The relay according to claim 5, characterized in that The auxiliary moving contact includes a fixed section and a free section connected to the fixed section along the extension direction, and the auxiliary moving contact is connected to the driving part through the fixed section; the free section is provided with an auxiliary moving contact, and the auxiliary moving contact contacts or separates from the auxiliary static contact through the auxiliary moving contact.

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

9. The relay according to claim 6, characterized in that The auxiliary contact part includes two auxiliary static contacts fixed relative to the coil assembly, and the two auxiliary static contacts are arranged at intervals and located on both sides of the driving part; the auxiliary moving contact is installed as a whole on the driving part and has two free sections, and the two free sections are located on both sides of the fixed section in the length direction, and each free section is used to contact or separate with one of the auxiliary static contacts.

10. The relay according to claim 6, characterized in that The driving portion is provided with an inserting slot, and at least a portion of the fixed section of the auxiliary moving contact is inserted and fixed in the inserting slot.

11. The relay according to claim 10, characterized in that A convex bud is provided on one side of the fixing section along the thickness direction; the fixing section is engaged in the plug-in slot through the convex bud.

12. The relay according to claim 10, characterized in that At least a portion of the fixed section of the auxiliary moving contact is engaged in the plug-in slot; the relay further comprises an adhesive layer, at least a portion of which is located in the plug-in slot and bonds the plug-in slot and the fixed section.

13. The relay according to claim 12, wherein: The relay further includes a housing including a first shell. The first shell is provided with an accommodating cavity for installing the magnetic circuit portion and the contact portion. The accommodating cavity has an opening.

14. The relay according to claim 13, characterized in that At least a portion of the plug-in slots of the auxiliary movable contact and the driving portion are exposed in the opening.

15. The relay according to claim 13, wherein: The housing also includes an auxiliary connecting plate, which is fixedly connected to one side of the opening of the first shell and is connected to 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 part of the insertion slot is exposed in the observation port; the auxiliary static contact is fixedly inserted into the first shell and / or the auxiliary connecting plate.

16. The relay according to claim 15, characterized in that The auxiliary static contact is rod-shaped, inserted into the auxiliary connecting plate and fixed by gluing; a limiting surface for abutting the auxiliary static contact is provided in the accommodating cavity of the first shell to ensure the stability of the auxiliary static contact when abutted by the auxiliary moving contact.

17. The relay according to claim 16, characterized in that The housing further includes a second shell, at least a portion of which is located on a side of the auxiliary connecting plate facing away from the first shell, and the second shell engages the opening; at least a portion of the auxiliary static contact extends out of the second shell.

18. The relay according to claim 6, wherein: The auxiliary movable contact and the driving part are an integrally formed structure.

19. The relay according to claim 1, wherein: The contact portion is arranged on one side of the armature assembly along an axial direction perpendicular to the coil assembly, and the driving portion is directly connected to the corresponding dynamic contact in the contact portion; at least part of the driving portion extends along the direction of the main body pointing to the contact portion to form an installation section, and the auxiliary dynamic contact is connected to the installation section.

20. The relay according to claim 19, wherein: The bracket is an insulating bracket; the driving part also includes a retaining wall structure, which is connected to the mounting section and is 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 static contact.

21. The relay according to claim 20, characterized in that The movable contact is provided with a pulling portion, which is located on a side of the movable contact away from the static contact. The driving portion is adapted to pull the pulling portion to separate the movable contact from the static contact. The retaining wall structure is provided between the auxiliary movable contact and the pulling portion.

22. The relay according to claim 21, characterized in that The main body of the bracket is located on one side of the contact part 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 exceeds the surface of the auxiliary dynamic contact in the third direction, and the third direction is perpendicular to the first direction and the second direction.

23. The relay according to claim 22, characterized in that The main body of the armature assembly is rotatable about an axis parallel to the third direction.

24. The relay according to claim 22, wherein: The armature assembly moves in a linear manner.

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

26. The relay according to claim 25, characterized in that An extending direction of the auxiliary movable contact intersects with the axis.

27. The relay according to claim 23 or 24, characterized in that: The armature body includes two armatures and a permanent magnet, and the two armatures are respectively fixed to the two magnetic poles of the permanent magnet; the two armatures form a suction part on both sides along the second direction, and 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 main body along the second direction.

28. The relay according to claim 20, wherein: The driving portion also includes a pushing section and a pulling section, the pushing section is connected to the side of the mounting section facing the moving contact piece, and is configured to push the moving contact piece to move so that the moving contact piece contacts the static contact piece; the pulling section is connected to the pushing section, and is configured to pull the moving contact piece so that the moving contact piece is separated from the static contact piece.

29. The relay according to claim 1, wherein 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: The first stationary contact comprises a first stationary contact point, and the second stationary contact comprises a second stationary contact point; The second moving contact is arranged side by side with the first moving contact, the first static contact is connected to the second moving contact, and the second static contact is connected to the first static contact; the first moving contact is provided with a first moving contact point, and the second moving contact is provided with a second moving contact point, the first moving contact point corresponds to the position of the first static contact, and the second moving contact point corresponds to the position of the second static contact; The bracket includes at least two driving parts; one of the driving parts is connected to the first moving contact to drive the corresponding first moving contact to contact or separate from the first static 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 static contact; at least one driving part is connected to the auxiliary moving contact.

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