Magnetic latching relay

Abstract

The utility model relates to the technical field of electronic control devices, and relates to a magnetic latching relay. The magnetic latching relay comprises an armature assembly; the auxiliary contact assembly is located on one side, in the first direction, of the armature assembly, and the first direction is parallel to the rotation axis of the armature assembly; the auxiliary contact assembly comprises an auxiliary moving contact part and an auxiliary static contact part, and at least part of the auxiliary moving contact part is directly and fixedly connected to the armature assembly and is used for following the armature assembly when the armature assembly rotates around the rotation axis; the auxiliary static contact part is located in a rotation path of the auxiliary moving contact part, and the auxiliary moving contact part is used for being in contact with or separated from the auxiliary static contact part. By optimizing the structure of the magnetic latching relay, the assembling difficulty of the auxiliary moving contact part in the auxiliary contact assembly can be reduced, the assembling efficiency can be improved, and the reliability of the connection relation of the auxiliary moving contact part after the auxiliary moving contact part is assembled with other structures can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic control device technical field, specifically, relate to a magnetic latching relay. BACKGROUND

[0002] The magnetic latching relay is a new type of relay developed in recent years, and is also an automatic switch. Like other electromagnetic relays, it plays a role in automatically connecting and disconnecting the circuit. An auxiliary contact assembly is usually provided in the magnetic latching relay as a monitoring switch, which includes an auxiliary moving contact part and an auxiliary stationary contact part. The auxiliary moving contact part is used to contact or separate from the auxiliary stationary contact part. In the prior art, the volume of the auxiliary moving contact part is usually relatively small, which makes it difficult to assemble and position in the relay.

[0003] Therefore, there is an urgent need to provide a magnetic latching relay that can reduce assembly difficulty. SUMMARY

[0004] The utility model embodiment provides a magnetic latching relay, which can reduce the assembly difficulty of the auxiliary moving contact part in the auxiliary contact assembly by optimizing its own structure, improve the assembly efficiency, and improve the reliability of the connection relationship of the auxiliary moving contact part after assembly with other structures.

[0005] In a first aspect, the utility model embodiment provides a magnetic latching relay, comprising:

[0006] An armature assembly;

[0007] An auxiliary contact assembly, the auxiliary contact assembly is located on one side of the armature assembly in a first direction, the first direction is parallel to the rotation axis of the armature assembly; the auxiliary contact assembly includes an auxiliary moving contact part and an auxiliary stationary contact part, at least part of the auxiliary moving contact part is directly fixedly connected to the armature assembly, so as to follow the armature assembly when the armature assembly rotates around the rotation axis; the auxiliary stationary contact part is located in the rotation path of the auxiliary moving contact part, and the auxiliary moving contact part is used to contact or separate from the auxiliary stationary contact part.

[0008] According to some embodiments of the utility model, the armature assembly includes a bracket and an armature mounted on the bracket, and the auxiliary moving contact part is directly fixedly connected with the armature.

[0009] According to some embodiments of the utility model, part of the armature penetrates to the outside of the bracket along the first direction, and the auxiliary moving contact part is directly fixedly connected with part of the armature located on one side of the bracket in a second direction, and the second direction is perpendicular to the first direction.

[0010] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0011] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0012] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0013] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0014] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0015] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0016] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0017] According to some embodiments of the present application, the auxiliary moving contact part is riveted with the armature.

[0018] According to some embodiments of the utility model, the auxiliary moving contact part includes two auxiliary moving contacts, each of which includes a body part and a connecting part, and the auxiliary moving contact is directly fixedly connected to the armature assembly through the body part; the connecting part is located on one side of the body part in the second direction and is connected to one end of the body part in the third direction, and the connecting part is used for contacting or separating from one auxiliary static contact.

[0019] Alternatively, the auxiliary moving contact part includes one auxiliary moving contact, which includes a body part and two connecting parts, and the auxiliary moving contact is directly fixedly connected to the armature assembly through the body part; the connecting parts are located on the same side of the body part in the second direction and are connected to one end of the body part in the third direction, and the two connecting parts are spaced apart in the third direction, and each connecting part is used for contacting or separating from one auxiliary static contact.

[0020] According to some embodiments of the utility model, the connecting part is provided with an auxiliary moving contact point, which is used for contacting or separating from an auxiliary static contact point arranged on the auxiliary static contact; the auxiliary moving contact points on the connecting part correspond one-to-one to the auxiliary static contact points on the static contact.

[0021] According to some embodiments of the utility model, the connecting part includes at least two connecting sub-parts spaced apart in the first direction, and each connecting sub-part is provided with at least one auxiliary moving contact point.

[0022] According to some embodiments of the utility model, among the at least two connecting sub-parts in the connecting part, there is a gap between every two adjacent connecting sub-parts in the first direction; along the second direction, the gap includes a middle region and side region located on both sides of the middle region, and the size of the gap in the middle region is greater than the size of the gap in the side region.

[0023] The above-mentioned embodiment of the utility model has at least the following advantages or beneficial effects:

[0024] 1. The magnetic latching relay provided by the application has the advantages that at least part of the auxiliary moving contact part is directly fixedly connected to the armature assembly, so that the auxiliary moving contact part can be fixed to the armature assembly through only one assembly operation, the assembly steps can be simplified, the assembly difficulty can be reduced, and the assembly efficiency can be improved. Moreover, since the auxiliary moving contact part is directly fixedly connected to the armature assembly, no other structural member is arranged between the two for force transmission, so that the reliability of the connection relationship between the auxiliary moving contact part and the armature assembly after assembly can be improved.

[0025] Meanwhile, since the auxiliary moving contact is directly fixed to the armature assembly, it moves directly with the armature assembly without the need for other structural components to conduct the drive. This can improve the monitoring accuracy of the auxiliary contact assembly, thereby improving the structural performance and safety performance of the magnetic latching relay.

[0026] 2. The magnetic latching relay provided in this application sets the armature and the auxiliary moving contact to be connected as two metal parts. This structure can improve the reliability of the connection between the two and ensure that the auxiliary contact component can function effectively in the magnetic latching relay.

[0027] Meanwhile, the armature and the auxiliary moving contact, two metal parts, produce almost no or only a very small amount of shavings during installation and movement. This improves the cleanliness inside the magnetic latching relay and prevents shavings from splashing onto the contact points between the auxiliary moving contact and the auxiliary stationary contact, thus avoiding poor contact and improving the structural performance of the magnetic latching relay.

[0028] 3. In the magnetic latching relay provided in this application, the auxiliary moving contact is riveted to the armature. This riveting connection method can improve the connection strength and stability between the armature and the auxiliary moving contact. Specifically, riveting tightly connects the metal parts through the deformation of the rivet, enabling it to withstand greater tensile, shear, and impact forces, ensuring the stability and reliability of the connection. The riveted connector is less prone to loosening or falling off, maintaining connection stability over a long period. Furthermore, the equipment and process for riveting are relatively simple; therefore, using riveting to connect the auxiliary moving contact and the armature can reduce connection costs and improve operational efficiency. Attached Figure Description

[0029] Figure 1 The diagram shown is a three-dimensional structural schematic of the magnetic latching relay provided in an embodiment of the present invention;

[0030] Figure 2 What is shown is Figure 1 A partial explosion diagram of the armature assembly and auxiliary contact assembly;

[0031] Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the armature assembly;

[0032] Figure 4 What is shown is Figure 3 A schematic diagram of the armature assembly from another angle;

[0033] Figure 5 What is shown is Figure 2 Enlarged schematic diagram of the auxiliary contact component.

[0034] The annotations in the attached figures are explained as follows:

[0035] 100, Armature assembly; 110, Bracket; 120, Armature; 200, Auxiliary contact assembly; 210, Auxiliary moving contact part; 211, Auxiliary moving contact element; 2111, Body part; 2112, Connecting part; 2112-1, Connecting sub-part; 2113, Auxiliary moving contact; 220, Auxiliary stationary contact part; 221, Auxiliary stationary contact element; 2211, First part; 2212, Second part; 2213, Auxiliary stationary contact; 300, Main contact assembly; 400, Mounting base; 500, Coil assembly; Y, First direction; X, Second direction; Z, Third direction. Detailed Implementation

[0036] 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.

[0037] This application provides a magnetic latching relay, which includes an armature assembly and an auxiliary contact assembly. Figure 1 The diagram shown is a three-dimensional structural schematic of the magnetic latching relay provided in an embodiment of the present invention; Figure 2 What is shown is Figure 1 A partial exploded view of the armature assembly 100 and the auxiliary contact assembly 200. (See attached image.) Figure 1 and Figure 2 In the illustrated structure, the auxiliary contact component 200 is located on one side of the armature assembly 100 in a first direction Y, which is parallel to the rotation axis of the armature assembly 100. It is understood that the first direction is designated by Y for clarity of the structure in this embodiment. Figure 1 and Figure 2 As shown, the auxiliary contact assembly 200 includes an auxiliary moving contact portion 210 and an auxiliary stationary contact portion 220. At least a portion of the auxiliary moving contact portion 210 is directly fixedly connected to the armature assembly 100 and is used to follow the armature assembly 100 when the armature assembly 100 rotates about the rotation axis. The auxiliary stationary contact portion 220 is located within the rotation path of the auxiliary moving contact portion 210 and is used to contact or disengage from the auxiliary stationary contact portion 220.

[0038] The auxiliary contact assembly 200 is used to control the auxiliary circuit, typically carrying a small current, and is mainly used for signal transmission or control logic. "Directly fixed to" can be understood as the auxiliary moving contact part 210 being directly fixed to the armature assembly 100 through only one fixing operation, without the need for other assembly operations, and no other structural components are provided at the connection point between the auxiliary contact assembly 200 and the armature assembly 100 for auxiliary connection.

[0039] It should be noted that the magnetic latching relay provided in this application embodiment directly and fixedly connects at least a portion of the auxiliary moving contact 210 to the armature assembly 100, allowing the auxiliary moving contact 210 to be fixed to the armature assembly 100 with only one assembly operation. This simplifies the assembly steps, reduces assembly difficulty, and improves assembly efficiency. Moreover, since the auxiliary moving contact 210 and the armature assembly 100 are directly and fixedly connected, and no other structural components are provided between them for force transmission, the reliability of the connection between the auxiliary moving contact 210 and the armature assembly 100 after assembly can be improved.

[0040] Meanwhile, since the auxiliary moving contact part 210 is directly fixedly connected to the armature assembly 100, the auxiliary moving contact part 210 directly follows the armature assembly 100 without the need for other structural components to conduct the drive, which can improve the monitoring accuracy of the auxiliary contact assembly 200, thereby improving the structural performance and safety performance of the magnetic latching relay.

[0041] Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the armature assembly 100; Figure 4 What is shown is Figure 3 A structural schematic diagram of the armature assembly 100 from another angle. In one embodiment, please refer to... Figure 1 refer to Figure 2 as well as Figure 3 and Figure 4 The structure shown includes an armature assembly 100 comprising a bracket 110 and an armature 120 mounted on the bracket 110, with the auxiliary movable contact portion 210 directly fixedly connected to the armature 120.

[0042] The armature 120 and the auxiliary moving contact 210 are generally made of metal. When the two metal parts, armature 120 and auxiliary moving contact 210, are connected, this structure can improve the reliability of their connection and ensure that the auxiliary contact assembly 200 can function effectively within the magnetic latching relay.

[0043] Meanwhile, compared with the scraping problem that easily occurs when connecting metal and plastic parts, the two metal parts, armature 120 and auxiliary moving contact 210, hardly produce or only produce a very small amount of scraping during installation and movement. This can improve the cleanliness inside the magnetic latching relay and prevent scraping from splashing onto the contact position between the auxiliary moving contact 210 and the auxiliary stationary contact 220, causing poor contact, thereby improving the structural performance of the magnetic latching relay.

[0044] Of course, the magnetic latching relay provided in this application embodiment can also be configured to have the auxiliary moving contact part 210 directly fixedly connected to the bracket 110, which will not be described in detail here.

[0045] Understandably, the armature assembly 100 is mounted on the housing or mounting base 400 shown in the figure within the magnetic latching relay, and rotates about a rotation axis. Accordingly, the mounting portion of the armature assembly 100 relative to the housing or mounting base 400 is equivalent to a fixed end, and the auxiliary moving contact portion 210 is substantially connected to the free end of the armature assembly 100 so as to follow the armature assembly 100 when it rotates.

[0046] Of course, the outer casing and mounting base can also be referred to as the first housing or the second housing. The first housing and the second housing are connected to form a receiving cavity for placing other structural components, which will not be elaborated further.

[0047] When connecting the auxiliary contact assembly 200 and the armature assembly 100, there are several possibilities for the connection position between them. In one embodiment, such as... Figure 2 , Figure 3 as well as Figure 4 As shown, a portion of the armature 120 extends along the first direction Y to the outer side of the bracket 110, and the auxiliary movable contact portion 210 is directly and fixedly connected to one side of the portion of the armature 120 located on the outer side of the bracket 110 in the second direction X, where the second direction X is perpendicular to the first direction Y. It is understood that, for the sake of clear understanding of the structure in this embodiment, the second direction is designated by X.

[0048] It should be noted that, in the embodiments of this application, the armature 120 actually includes a main body for engaging with the yoke, and an extension extending from the main body. The auxiliary moving contact portion 210 is connected to the extension to avoid interfering with the normal engagement action between the armature assembly 100 and the yoke.

[0049] Please continue to refer to this. Figure 1As shown in the diagram, the magnetic latching relay provided in this embodiment further includes a main contact assembly 300, which is located on the side of the armature assembly 100 opposite to the auxiliary contact assembly 200 along the second direction X. In other words, in this embodiment, the auxiliary contact assembly 200 and the main contact assembly 300 are located on opposite sides of the armature assembly 100 in the second direction X, so that they operate synchronously when the armature assembly 100 is selected around its rotation axis.

[0050] Understandably, the main contact assembly 300 is typically used to control the on / off state of the main circuit and carries a large current. The main contact assembly 300 includes an active contact portion with an active contact and a main stationary contact portion with a main stationary contact. At least a portion of the active contact portion follows the armature assembly 100. During the rotation of the armature assembly 100 around its rotation axis, a portion of the active contact portion moves toward or away from the main stationary contact portion, so that the active contact and the main stationary contact make contact or disengage; simultaneously, the auxiliary moving contact portion 210 can move toward or away from the auxiliary stationary contact portion 220 as the armature assembly 100 rotates, so that the auxiliary moving contact 2113 and the auxiliary stationary contact 2213 make contact or disengage.

[0051] It is worth noting that, since the auxiliary contact assembly 200 is located on the side of the armature assembly 100 facing away from the main contact assembly 300 in the second direction X, in order to improve the follow-up effect of the auxiliary moving contact portion 210 relative to the armature assembly 100, such as Figure 2 As shown, in one embodiment, the auxiliary movable contact portion 210 is directly and fixedly connected to the armature assembly 100 on the side opposite to the main contact assembly 300 in the second direction X.

[0052] In one embodiment, such as Figure 1 As shown, the magnetic latching relay provided in this embodiment further includes a coil assembly 500, which is located on the side of the armature assembly 100 facing away from the main contact assembly 300 in the second direction X. It is understood that, due to viewing angle, the coil assembly 500... Figure 1 Not fully shown, but identified only by the through-hole at the top of the mounting base.

[0053] Please continue to refer to this. Figure 1 The structure shown has the auxiliary stationary contact portion 220 located on one side of the coil assembly 500 in the first direction Y, so as to reasonably arrange the space inside the magnetic latching relay, improve the integration of each structural component, and facilitate the miniaturization design of the magnetic latching relay.

[0054] It is worth noting that the yoke can be fixed to the coil assembly 500 to engage with the armature 120; details will not be elaborated further.

[0055] When connecting the auxiliary movable contact portion 210 and the armature 120, various connection methods can be adopted. For example, in one embodiment, the auxiliary movable contact portion 210 and the armature 120 are riveted together.

[0056] It should be noted that riveting can enhance the connection strength between the armature 120 and the auxiliary moving contact part 210, as well as improve the connection stability. Specifically, riveting tightly connects metal parts through the deformation of the rivet, which can withstand greater tensile, shear, and impact forces, ensuring the stability and reliability of the connection; the riveted connectors are not easy to loosen or fall off, and can maintain the stability of the connection for a long time.

[0057] In addition, the equipment and process of riveting are relatively simple. Therefore, using the riveting process to connect the auxiliary moving contact part 210 and the armature 120 can reduce the connection cost and improve the operating efficiency.

[0058] In another embodiment, the auxiliary movable contact portion 210 and the armature 120 can be welded together to improve the connection strength between the armature 120 and the auxiliary movable contact portion 210 and to ensure connection stability.

[0059] Figure 5 What is shown is Figure 2 An enlarged schematic diagram of the auxiliary contact component 200; as shown. Figure 5 As shown, in one embodiment, the auxiliary stationary contact portion 220 includes an auxiliary stationary contact member 221. The auxiliary stationary contact member 221 includes a first portion 2211 and a second portion 2212. The second portion 2212 is connected to one end of the first portion 2211 in the third direction Z. The other end of the first portion 2211 can be installed and fixed relative to the mounting base 400. The third direction Z is perpendicular to the second direction X and the first direction Y. It is understood that, for the sake of clear understanding of the structure in the embodiments of this application, the third direction is identified by Z.

[0060] like Figure 5 As shown, the second part 2212 is located on one side of the first part 2211 in the second direction X and is set at an angle to the first part 2211; the second part 2212 has an auxiliary stationary contact 2213 on one side in the third direction Z. It can be understood that the auxiliary stationary contact 2213 in the auxiliary stationary contact 221 is located on the movement path of the auxiliary moving contact part 210 so as to contact the auxiliary moving contact part 210.

[0061] It should be noted that when the auxiliary moving contact 210 contacts the auxiliary stationary contact 221, the auxiliary moving contact 210 specifically contacts the auxiliary stationary contact 2213 located on the third direction Z side of the second part 2212. The magnetic latching relay provided in this application embodiment sets the second part 2212 in the auxiliary stationary contact 221 to be located on the first part 2211 on the second direction X and set at an angle with the first part 2211, so that the auxiliary stationary contact 221 can provide effective support force for the auxiliary stationary contact 2213 along the third direction Z when it contacts the auxiliary moving contact 210, thereby improving the contact reliability between the auxiliary stationary contact 2213 and the auxiliary moving contact.

[0062] In a specific embodiment, such as Figure 1 and Figure 2 As shown, the auxiliary stationary contact 2213 is located on the side of the second part 2212 facing away from the first part 2211 in the third direction Z, so as to reduce the size of the auxiliary stationary contact 221 in the third direction Z, reasonably arrange the internal space of the magnetic latching relay, improve the integration of each structural component, and facilitate the miniaturization design of the magnetic latching relay.

[0063] In one embodiment, such as Figure 5 As shown, the angle between the second part 2212 and the first part 2211 is 90 degrees to enhance the structural stability of the auxiliary stationary contact 221. Specifically, in this embodiment, the angle between the second part 2212 and the first part 2211 is set to a right angle, so that the first part 2211 can provide effective support for the second part 2212, reducing the possibility of deformation of the second part 2212 relative to the first part 2211 during use, thereby enabling the auxiliary stationary contact 2213 to effectively contact the auxiliary moving contact 210 and improving the contact reliability between the two.

[0064] It is worth noting that, such as Figure 2 and Figure 5 As shown, in this embodiment, the second part 2212 and the first part 2211 roughly form an L-shaped structure, which gives the auxiliary stationary contact 221 a certain degree of elasticity. When the armature 120 drives the auxiliary moving contact 211 to rotate, the overtravel value of the rotation can be designed to be larger, ensuring reliable contact between the auxiliary moving contact 210 and the auxiliary stationary contact 220.

[0065] Of course, the angle between the second part 2212 and the first part 2211 can also be set to other degrees, such as 91 degrees or 89 degrees, which are approximately 90 degrees.

[0066] Furthermore, the angle between the second part 2212 and the first part 2211 can be set to any angle within the range of 80 degrees to 100 degrees. For example, the angle can be 100 degrees or 80 degrees, etc., and can be set according to requirements, which will not be elaborated here.

[0067] It is worth noting that when the angle between the second part 2212 and the first part 2211 changes, the structure of the auxiliary movable contact part 210 may also need to be adjusted accordingly. Figure 5 The internal structure undergoes corresponding changes to adapt, which will not be elaborated further.

[0068] In one embodiment, such as Figure 2 and Figure 5 As shown, the auxiliary stationary contact portion 220 includes two auxiliary stationary contact members 221. The first portions 2211 of the two auxiliary stationary contact members 221 are spaced apart in the second direction X, and the second portions 2212 of the two auxiliary stationary contact members 221 are spaced apart in the third direction Z. Along the third direction Z, the auxiliary stationary contact point 2213 in each of the two auxiliary stationary contact members 221 is located on the same side of the corresponding second portion 2212.

[0069] It is worth noting that in this embodiment, two auxiliary stationary contacts 221 are provided to contact or detach from the auxiliary moving contact portion 210, so as to improve the contact reliability between the auxiliary stationary contacts 221 and the auxiliary moving contact portion 210, thereby improving the structural performance of the magnetic latching relay provided in this embodiment.

[0070] Of course, the magnetic latching relay provided in this application embodiment can also be configured to include only one auxiliary stationary contact 221, so as to achieve contact or disengagement between the auxiliary stationary contact 221 and the auxiliary moving contact portion 210.

[0071] Alternatively, the auxiliary stationary contact 221 in the magnetic latching relay provided in this application embodiment is not limited to two, but can be other numbers of multiples. Of course, the number of auxiliary stationary contacts 221 cannot be too many, so as not to occupy too much space and affect the miniaturization of the magnetic latching relay.

[0072] When setting two auxiliary stationary contacts 221 within the auxiliary stationary contact portion 220, there are multiple possibilities for the structural form of the two auxiliary stationary contacts 221.

[0073] In one embodiment, please combine Figure 2 and Figure 5 refer to Figure 1In the structure shown, along the second direction X, the second part 2212 of each of the two auxiliary stationary contacts 221 is located between the two first parts 2211 of the two auxiliary stationary contacts 221; and the arrangement direction of the auxiliary stationary contact 2213 in one auxiliary stationary contact 221 and the auxiliary stationary contact 2213 in the other auxiliary stationary contact 221 is parallel to the third direction Z.

[0074] It should be noted that when each auxiliary stationary contact 221 forms an L-shaped structure, in this embodiment, the openings of the two L-shaped auxiliary stationary contacts 221 are arranged opposite each other to make reasonable use of the internal space of the magnetic latching relay and improve the integration of the device. At the same time, this structural arrangement can also shorten the distance of the auxiliary stationary contacts 2213 provided on the two second parts 2212 in the third direction Z, so that the two auxiliary stationary contacts 221 can make contact with the auxiliary moving contact part 210.

[0075] It is worth noting that when the distance between the auxiliary stationary contacts 2213 on the two second parts 2212 in the third direction Z is shortened, the size difference of the part of the auxiliary moving contact part 210 used to connect with each auxiliary stationary contact 2213 in the third direction Z is also shortened, which can further improve the integration of the device.

[0076] When setting the auxiliary moving contact part 210, in conjunction with the structural setting of the auxiliary stationary contact part 220, the structural form of the auxiliary moving contact part 210 can be varied.

[0077] In one embodiment, please combine Figure 2 refer to Figure 3 The structure shown includes an auxiliary movable contact portion 210 comprising an auxiliary movable contact member 211. The auxiliary movable contact member 211 comprises a body portion 2111 and two connecting portions 2112. The auxiliary movable contact member 211 is directly fixedly connected to the armature assembly 100 via the body portion 2111. The connecting portions 2112 are located on the same side of the body portion 2111 in the second direction X and are connected to one end of the body portion 2111 in the third direction Z. The two connecting portions 2112 are spaced apart in the third direction Z, and each connecting portion 2112 is used to contact or detach from an auxiliary stationary contact member 221.

[0078] It is worth noting that the structure of the auxiliary moving contact 211 in this embodiment is similar to a U-shape. The auxiliary moving contact 211 is directly fixedly connected to the armature assembly 100 through the body part 2111, and each connecting part 2112 is used to contact or detach from the corresponding auxiliary stationary contact 221.

[0079] It should be noted that in the magnetic latching relay provided in this application embodiment, the auxiliary moving contact 211 only generates a reaction force when it contacts the auxiliary stationary contact 221. When the auxiliary moving contact 211 disengages from the auxiliary stationary contact 221, there is no reaction force between the auxiliary moving contact 211 and the auxiliary stationary contact 221. This can reduce the reaction force that the armature assembly 100 needs to overcome when the contact between the active contact portion and the main stationary contact portion switches from an open state to a closed state, thereby improving the smoothness of the armature assembly 100 when rotating around the rotation axis.

[0080] As an example, the auxiliary moving contact 211 in this embodiment is an integral structure, which can avoid assembly errors between the two connecting parts 2112 and the main body part 2111, and improve the consistency when the auxiliary moving contact 211 contacts the two auxiliary stationary contacts 221.

[0081] In another embodiment, the auxiliary movable contact portion 210 in this embodiment includes two auxiliary movable contacts 211. Each auxiliary movable contact 211 includes a body portion 2111 and a connecting portion 2112. The auxiliary movable contact 211 is directly fixedly connected to the armature assembly 100 through the body portion 2111. The connecting portion 2112 is located on one side of the body portion 2111 in the second direction X and is connected to one end of the body portion 2111 in the third direction Z. The connecting portion 2112 is used to contact or detach from an auxiliary stationary contact 221.

[0082] It is worth noting that the structure of each auxiliary moving contact 211 in this embodiment can be set according to requirements to adapt to different auxiliary stationary contacts 221, which can broaden the application scenarios.

[0083] In one embodiment, the connecting portion 2112 is provided with an auxiliary moving contact 2113, which is used to contact or disengage from the auxiliary stationary contact 2213 provided on the auxiliary stationary contact 221 to form an auxiliary contact. It is worth noting that the number of auxiliary moving contacts 2113 on the connecting portion 2112 may be the same as or different from the number of auxiliary stationary contacts 2213 in the auxiliary stationary contact 221. For example, the auxiliary moving contacts 2213 on the connecting portion 2112 correspond one-to-one with the auxiliary stationary contacts 2213 on the stationary contact to form corresponding auxiliary contacts.

[0084] As an example, such as Figure 2 As shown, the auxiliary stationary contact 221 has two auxiliary stationary contacts 2213, and the connecting portion 2112 within the auxiliary moving contact 211, corresponding to the auxiliary stationary contact 221, also has two auxiliary moving contacts 2113. The auxiliary moving contacts 2113 correspond one-to-one with the auxiliary stationary contacts 2213, forming the auxiliary contacts of the magnetic latching relay. Therefore, multiple auxiliary contacts can provide redundancy; when one auxiliary contact fails, the other auxiliary contacts can continue to operate, thereby improving the reliability of the magnetic latching relay provided in this embodiment.

[0085] In one embodiment, such as Figure 3 As shown, the connecting portion 2112 includes at least two connecting sub-ports 2112-1 spaced apart in the first direction Y, and each connecting sub-port 2112-1 has at least one auxiliary moving contact 2113. For example, Figure 2 Each connecting part 2112 includes two connecting subparts 2112-1.

[0086] It is understood that the connecting sub-part 2112-1 needs to adapt to the angle between the second part 2212 and the first part 2211 and bend to the corresponding angle to ensure that the connecting sub-part 2112-1 effectively contacts the auxiliary stationary contact 2213 within the stationary contact 221. The connecting part 2112 has a missing portion to separate at least two connecting sub-parts 2112-1 spaced apart in the first direction Y. It is worth noting that the multiple connecting sub-parts 2112-1 within each connecting part 2112 can serve as backups for each other. If one of the connecting sub-parts 2112-1 deforms and tilts upwards along the third direction Z, the remaining connecting sub-parts 2112-1 can still contact the corresponding auxiliary stationary contact 2213 through the auxiliary moving contact 2113 to ensure the structural performance of the magnetic latching relay provided in this application embodiment.

[0087] Meanwhile, this structural arrangement can further reduce the reaction force when the auxiliary moving contact 211 contacts the auxiliary stationary contact 221, and simultaneously reduce the reaction force that the armature assembly 100 needs to overcome when the main contact point between the active contact part and the main stationary contact part switches from the open state to the closed state, thereby improving the smoothness of the armature assembly 100 when rotating around the rotation axis.

[0088] In one embodiment, such as Figure 4 As shown, among the at least two connecting sub-parts 2112-1 within the connecting portion 2112, there is a gap between each pair of adjacent connecting sub-parts 2112-1 in the first direction Y; along the second direction X, the gap includes a middle region and side regions located on both sides of the middle region, and the size a of the gap in the middle region is greater than the size b of the gap in the side regions.

[0089] For example, the side region specifically includes the region near the root of the connecting portion 2112 and the region near the auxiliary stationary contact 221. It should be noted that the magnetic latching relay provided in this embodiment ensures the connection strength between each connecting sub-part 2112-1 and the main body 2111 by setting the gap dimension b near the root of the connecting portion 2112 in the first direction Y to be smaller than the gap dimension a in the first direction Y in the middle region, thereby improving the structural stability of the auxiliary moving contact 211. Simultaneously, by setting the gap dimension b near the auxiliary stationary contact 221 in the first direction Y to be smaller than the gap dimension a in the first direction Y in the middle region, the magnetic latching relay provided in this embodiment allows for a larger design of the auxiliary moving contact 2113 within the auxiliary moving contact 211, improving the accuracy of contact between the auxiliary moving contact 2113 and the auxiliary stationary contact 2213, thereby enhancing the structural performance of the magnetic latching relay provided in this embodiment.

[0090] Furthermore, by setting the gap located in the middle region to have a larger dimension a in the first direction Y, this embodiment of the application can avoid the impact on adjacent connecting sub-parts 2112-1 when the connecting sub-part 2112-1 is deformed.

[0091] 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.

[0092] 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 mean a direct fixed connection, a detachable connection, or an integral connection; "join" can mean 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.

[0093] 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.

[0094] 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.

[0095] 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 magnetic latching relay, characterized in that, include: armature assembly; An auxiliary contact assembly is located on one side of the armature assembly in a first direction parallel to the rotation axis of the armature assembly. The auxiliary contact assembly includes an auxiliary moving contact portion and an auxiliary stationary contact portion. At least a portion of the auxiliary moving contact portion is directly and fixedly connected to the armature assembly to follow the armature assembly when the armature assembly rotates around the rotation axis. The auxiliary stationary contact portion is located within the rotation path of the auxiliary moving contact portion and is used to contact or disengage from the auxiliary stationary contact portion.

2. The magnetic latching relay according to claim 1, characterized in that, The armature assembly includes a bracket and an armature mounted on the bracket, and the auxiliary movable contact portion is directly fixedly connected to the armature.

3. The magnetic latching relay according to claim 2, characterized in that, A portion of the armature extends through the first direction to the outside of the bracket, and the auxiliary movable contact portion is directly and fixedly connected to one side of the portion of the armature located on the outside of the bracket in a second direction, the second direction being perpendicular to the first direction.

4. The magnetic latching relay according to claim 2, characterized in that, The auxiliary movable contact part is riveted to the armature.

5. The magnetic latching relay according to claim 3, characterized in that, It also includes a main contact assembly, which is located on the side of the armature assembly opposite to the auxiliary contact assembly along the second direction.

6. The magnetic latching relay according to claim 5, characterized in that, The auxiliary movable contact portion is directly and fixedly connected to the armature assembly on the side opposite to the main contact assembly in the second direction.

7. The magnetic latching relay according to claim 5, characterized in that, It also includes a coil assembly located on the side of the armature assembly facing away from the main contact assembly in the second direction; the auxiliary stationary contact portion is located on one side of the coil assembly in the first direction.

8. The magnetic latching relay according to any one of claims 1-7, characterized in that, The auxiliary stationary contact portion is located on one side of the armature assembly in a second direction, which is perpendicular to the first direction. The auxiliary stationary contact portion includes an auxiliary stationary contact member, which includes a first part and a second part. The second part is connected to one end of the first part in a third direction, and the second part is located on one side of the first part in the second direction and is set at an angle to the first part. The second part has an auxiliary stationary contact point on the side of the second part in the third direction. The auxiliary stationary contact point is located on the side of the second part in the third direction away from the first part. The third direction is perpendicular to both the first direction and the second direction.

9. The magnetic latching relay according to claim 8, characterized in that, The angle between the second part and the first part is 90 degrees.

10. The magnetic latching relay according to claim 8, characterized in that, The auxiliary stationary contact portion includes two auxiliary stationary contact members, the first portions of the two auxiliary stationary contact members are spaced apart in the second direction, and the second portions of the two auxiliary stationary contact members are spaced apart in the third direction; along the third direction, the auxiliary stationary contact point in each of the two auxiliary stationary contact members is located on the same side of the corresponding second portion.

11. The magnetic latching relay according to claim 10, characterized in that, Along the second direction, the second portion of each of the two auxiliary stationary contacts is located between the two first portions of the two auxiliary stationary contacts; the arrangement direction of the auxiliary stationary contacts in one auxiliary stationary contact and the auxiliary stationary contacts in the other auxiliary stationary contact is parallel to the third direction.

12. The magnetic latching relay according to claim 8, characterized in that, The auxiliary movable contact portion includes two auxiliary movable contacts. Each auxiliary movable contact includes a body portion and a connecting portion. The auxiliary movable contact is directly fixedly connected to the armature assembly through the body portion. The connecting portion is located on one side of the body portion in the second direction and is connected to one end of the body portion in the third direction. The connecting portion is used to contact or detach from one of the auxiliary stationary contacts. Alternatively, the auxiliary movable contact portion includes an auxiliary movable contact member, which includes a body portion and two connecting portions. The auxiliary movable contact member is directly fixedly connected to the armature assembly through the body portion. The connecting portions are located on the same side of the body portion in the second direction and are connected to one end of the body portion in the third direction. The two connecting portions are spaced apart in the third direction, and each connecting portion is used to contact or disengage from one of the auxiliary stationary contact members.

13. The magnetic latching relay according to claim 12, characterized in that, The connecting part is provided with an auxiliary moving contact, which is used to contact or disengage from the auxiliary stationary contact provided on the auxiliary stationary contact; the moving auxiliary contact on the connecting part corresponds one-to-one with the auxiliary stationary contact on the stationary contact.

14. The magnetic latching relay according to claim 13, characterized in that, The connecting portion includes at least two connecting sub-parts spaced apart in the first direction, and each connecting sub-part has at least one auxiliary moving contact.

15. The magnetic latching relay according to claim 14, characterized in that, In the at least two connecting sub-parts within the connecting portion, there is a gap between each pair of adjacent connecting sub-parts in the first direction; along the second direction, the gap includes a central region and side regions located on both sides of the central region, and the size of the gap in the central region is larger than the size of the gap in the side regions.

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