A relay

Abstract

The application provides a relay and relates to the technical field of electric power. The relay comprises a contact assembly, a magnetic circuit assembly and an auxiliary monitoring assembly. The contact assembly comprises a moving contact and a stationary contact. The magnetic circuit assembly comprises an armature which drives the moving contact and the stationary contact to contact or separate. The auxiliary monitoring assembly comprises an auxiliary moving contact and an auxiliary stationary contact. The auxiliary moving contact is connected to the armature, and the armature drives the auxiliary moving contact to move. The auxiliary moving contact contacts or separates from the auxiliary stationary contact. The movement direction of the armature when the relay is impacted or vibrated is not in the same direction as the movement direction of the auxiliary moving contact relative to the auxiliary stationary contact, so as to avoid the armature from driving the auxiliary moving contact to contact the auxiliary stationary contact by mistake when the relay is impacted or vibrated. The position of the auxiliary monitoring assembly is optimized in the relay, the anti-impact and anti-vibration performance of the auxiliary monitoring assembly is improved, and the reliability of the relay is improved, so as to meet the requirements of vehicle-grade components.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power, and in particular, to a relay. BACKGROUND

[0002] With the increasing reliability requirements of automobiles, more and more customers require relays to have a monitoring circuit for monitoring the state of the main contact.

[0003] When the relay is subjected to a large impact and vibration, the armature is an internal moving part of the relay, and the weight and inertia of the armature are large. The entire armature can be separated from the yoke and move between the direction towards the core and the direction away from the core. Since the contact gap between the moving contact and the stationary contact is relatively large, it is not affected; but the contact gap between the auxiliary moving contact and the auxiliary stationary contact is relatively small. If the movement direction of the armature when the relay is subjected to an impact or vibration is consistent with the movement direction of the auxiliary moving contact with respect to the auxiliary stationary contact, the contact or separation state between the auxiliary moving contact and the auxiliary stationary contact in the auxiliary monitoring assembly is easily affected, the contact or separation state between the moving contact and the stationary contact cannot be accurately monitored, and the reliability of the relay is reduced. SUMMARY

[0004] The relay provided by the present application improves the anti-impact and anti-vibration performance of the auxiliary monitoring assembly.

[0005] According to an aspect of the present application, a relay is provided, comprising:

[0006] a contact assembly comprising a moving contact and a stationary contact;

[0007] a magnetic circuit assembly comprising an armature, the armature driving the moving contact and the stationary contact to contact or separate;

[0008] an auxiliary monitoring assembly comprising an auxiliary moving contact and an auxiliary stationary contact, the auxiliary moving contact being connected to the armature, the armature driving the auxiliary moving contact to move, and the auxiliary moving contact and the auxiliary stationary contact contacting or separating;

[0009] wherein the movement direction of the armature when the relay is subjected to an impact or vibration is not in the same direction as the movement direction of the auxiliary moving contact with respect to the auxiliary stationary contact, so as to avoid the armature driving the auxiliary moving contact and the auxiliary stationary contact to misoperate contact when subjected to an external impact or vibration.

[0010] In some embodiments, the movement direction of the armature when subjected to an impact or vibration is perpendicular to the movement direction of the auxiliary moving contact with respect to the auxiliary stationary contact.

[0011] In some embodiments, the relay further comprises:

[0012] A pushing rod, one end of the pushing rod is connected to the armature, and the other end can drive the auxiliary moving reed to act.

[0013] In some embodiments, the pushing rod and the auxiliary moving reed are movably connected to each other, one of the sides of the pushing rod and the auxiliary moving reed close to each other is provided with a limiting part, and the other is provided with a limiting matching part for limiting the pushing rod.

[0014] In some embodiments, the pushing rod comprises:

[0015] A first connecting part connected to the armature;

[0016] A second connecting part arranged at an angle relative to the first connecting part, one end of the second connecting part is connected to the first connecting part, and the other end can drive the auxiliary moving reed.

[0017] In some embodiments, the pushing rod is provided with a plug-in slot on the side close to the armature, the armature is provided with a connecting extension corresponding to the plug-in slot, and the connecting extension is clamped in the plug-in slot.

[0018] In some embodiments, the pushing rod is provided with a fixing protrusion corresponding to the plug-in slot, the connecting extension of the armature is provided with a fixing groove corresponding to the fixing protrusion, and the fixing protrusion is filled into the fixing groove after high-temperature melting.

[0019] In some embodiments, the armature is provided with a stop part on the side close to the pushing rod, the stop part and the connecting extension are arranged in parallel and spaced apart, the stop part is used for limiting the armature, and the edge of the stop part away from the armature and the edge of the connecting extension away from the armature are flush with each other, so as to facilitate automatic feeding.

[0020] In some embodiments, the magnetic circuit assembly further comprises:

[0021] A coil holder for winding the coil;

[0022] An iron core penetrating the coil holder, the iron core corresponding to the armature;

[0023] A yoke arranged on the side of the coil away from the contact part of the contact assembly;

[0024] The yoke is provided with a knife edge, and the armature is arranged around the knife edge.

[0025] In some embodiments, the relay further comprises:

[0026] An insulating plate is arranged between the coil frame and the yoke; wherein one of the sides of the insulating plate and the coil frame close to each other is provided with a clamping protrusion, and the other is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove.

[0027] In some embodiments, the relay further comprises:

[0028] A mounting seat is connected to the coil frame, and the auxiliary moving reed and the auxiliary stationary reed are arranged in the mounting seat.

[0029] An insulating wall is arranged in the mounting seat, and the insulating wall is arranged on the side of the yoke away from the insulating plate.

[0030] In some embodiments, one of the insulating plate and the insulating wall is provided with a plug-in part, and the other is provided with a plug-in matching part, the plug-in part is arranged in the plug-in matching part for positioning between the insulating plate and the insulating wall.

[0031] In some embodiments, an avoiding space is formed between the plug-in part and the plug-in matching part, and the avoiding space is used to avoid the push rod.

[0032] In some embodiments, one of the sides of the mounting seat and the coil frame close to each other is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is clamped in the positioning groove for positioning between the insulating wall and the coil frame.

[0033] In some embodiments, the auxiliary stationary reed comprises an auxiliary normally open stationary reed, the side of the auxiliary moving reed facing the auxiliary normally open stationary reed is provided with an auxiliary moving contact, and the auxiliary normally open stationary reed is provided with an auxiliary normally open stationary contact corresponding to the auxiliary moving contact; and / or,

[0034] The auxiliary stationary reed comprises an auxiliary normally closed stationary reed, the side of the auxiliary moving reed facing the auxiliary normally closed stationary reed is provided with an auxiliary moving contact, and the auxiliary normally closed stationary reed is provided with an auxiliary normally closed stationary contact corresponding to the auxiliary moving contact.

[0035] An embodiment of the present application has the following advantages or beneficial effects:

[0036] The relay provided by the embodiment of the present application sets the action direction of the auxiliary moving reed relative to the opening and closing stroke of the auxiliary stationary reed and the movement direction of the armature when the relay is subjected to impact or vibration not in the same direction, optimizes the position of the auxiliary monitoring assembly inside the relay, reduces the risk of misoperation of the auxiliary moving reed and the auxiliary stationary reed when the armature is subjected to impact and vibration, improves the anti-impact and anti-vibration performance of the auxiliary monitoring assembly, thereby improving the reliability of the relay to meet the requirements of vehicle-grade components. Attached Figure Description

[0037] To better understand the present invention, reference may be made to the embodiments shown in the following drawings. Components in the drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of the invention. Furthermore, related elements or components may have different arrangements as known in the art. Additionally, in the drawings, the same reference numerals denote the same or similar components in various figures. The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0038] in:

[0039] Figure 1 The diagram shown is a schematic representation of the structure of a relay according to an embodiment of the present invention. Figure One ;

[0040] Figure 2 The diagram shown is a schematic representation of the structure of a relay according to an embodiment of the present invention. Figure Two ;

[0041] Figure 3 The diagram shown is a schematic representation of the structure of a relay according to an embodiment of the present invention. Figure Three ;

[0042] Figure 4 The diagram shown is a schematic representation of the structure of the relay display armature, push rod, and auxiliary monitoring components cooperating with each other according to an embodiment of the present invention.

[0043] Figure 5 The diagram shown is a schematic representation of the push rod structure in a relay according to an embodiment of the present invention;

[0044] Figure 6 The diagram shown is a schematic representation of the structure of a relay display armature according to an embodiment of the present invention. Figure One ;

[0045] Figure 7 The diagram shown is a schematic representation of the structure of a relay display armature according to an embodiment of the present invention. Figure Two ;

[0046] Figure 8 The diagram shown is an exploded view of a relay according to an embodiment of the present invention;

[0047] Figure 9 The diagram shown is a structural schematic of a relay display plug-in mating part according to an embodiment of the present invention;

[0048] Figure 10 The diagram shown illustrates the assembly of the coil frame and insulating plate in a relay according to an embodiment of the present invention. Figure One ;

[0049] Figure 11 Figure 1 shows an assembly diagram of a coil frame and an insulation plate in a relay according to an embodiment of the present application Figure Two

[0050] Figure 12 Figure 2 shows an assembly diagram of a coil frame and an insulation wall in a relay according to an embodiment of the present application Figure One

[0051] Figure 13 Figure 3 shows an assembly diagram of a coil frame and an insulation wall in a relay according to an embodiment of the present application Figure Two .

[0052] In the figures, the reference signs are as follows:

[0053] 1, contact assembly; 2, magnetic circuit assembly;

[0054] 11, static spring piece; 111, static contact point;

[0055] 12, dynamic spring piece; 121, dynamic contact point;

[0056] 21, coil frame; 211, first flange; 212, second flange; 213, clamping groove; 214, positioning groove; 22, coil; 23, yoke; 24, armature; 241, fixing groove; 242, stop portion; 243, connecting extension; 25, core;

[0057] 100, auxiliary monitoring assembly;

[0058] 110, auxiliary dynamic spring piece; 1101, auxiliary dynamic contact point; 1102, limiting fitting portion;

[0059] 120, auxiliary static spring piece; 1201, auxiliary normally open static spring piece; 1202, auxiliary normally open static contact point; 1203, auxiliary normally closed static spring piece; 1204, auxiliary normally closed static contact point;

[0060] 200, push rod; 210, limiting portion; 220, first connecting portion; 230, second connecting portion; 240, fixing protrusion; 250, plug-in clamping groove;

[0061] 300, insulation plate; 310, clamping protrusion; 320, plug-in fitting portion;

[0062] 400, mounting seat; 410, positioning protrusion;

[0063] 500, insulation wall; 510, plug-in portion;

[0064] 600, auxiliary dynamic spring piece leading end. DETAILED DESCRIPTION

[0065] ​​​The technical solutions in the example embodiments of the present application will be described clearly and completely in the present application with reference to the drawings in the example embodiments of the present application. The example embodiments described in the present application are only for illustrative purposes, and are not intended to limit the protection scope of the present application, and therefore it should be understood that various modifications and changes can be made to the example embodiments without departing from the protection scope of the present application.

[0066] In the description of the present application, unless explicitly specified and limited, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more; the term "and / or" includes any combination and all combinations of one or more associated listed items. In particular, referring to "the" object or "one" object is also intended to represent one of the possible multiple such objects.

[0067] Unless otherwise specified or described, the terms "connection", "fixation" and the like should be interpreted broadly, for example, "connection" can be fixed connection, or detachable connection, or integral connection, or electrical connection, or signal connection; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] Further, in the description of the present application, it should be understood that the "up", "down", "inner", "outer" and the like described in the example embodiments of the present application are described with the angle shown in the drawings, and should not be understood as limiting the example embodiments of the present application. It should also be understood that in the context, when referring to one element or feature connected to another element (one or more) "on", "under", or "inside", "outside", it can not only be directly connected to another element (one or more) "on", "under", or "inside", "outside", but also indirectly connected to another element (one or more) "on", "under", or "inside", "outside" through an intermediate element.

[0069] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive aspects of the example implementations to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus a detailed description of them will not be repeated.

[0070] The present embodiment provides a relay, such as Figures 1-3As shown, the relay includes a contact assembly 1, a magnetic circuit assembly 2 and an auxiliary monitoring assembly 100, the contact assembly 1 includes a moving contact 12 and a static contact 11, the magnetic circuit assembly 2 includes an armature 24, the armature 24 drives the moving contact 12 to act, and the armature 24 drives the moving contact 12 and the static contact 11 to contact or separate. The auxiliary monitoring assembly 100 includes an auxiliary moving contact 110 and an auxiliary static contact 120, the auxiliary moving contact 110 is connected to the armature 24, the armature 24 drives the auxiliary moving contact 110 to act, and the auxiliary moving contact 110 contacts or separates from the auxiliary static contact 120.

[0071] The relay provided by the embodiment, the armature 24 drives the moving contact 12 to move towards or away from the static contact 11, when the moving contact 12 and the static contact 11 contact, the moving contact 12 and the static contact 11 are connected with the external load to form a path, thereby realizing the connection of the load. The armature 24 drives the auxiliary moving contact 110 to move towards or away from the auxiliary static contact 120, when the auxiliary moving contact 110 and the auxiliary static contact 120 contact, the auxiliary moving contact 110 and the auxiliary static contact 120 are connected with the detection load system to form a path, and the auxiliary monitoring assembly 100 has a monitoring loop function, which is used to monitor the contact or separation state between the moving contact 12 and the static contact 11.

[0072] When the relay is subjected to a large impact and vibration, the armature 24 is an internal moving part of the relay, and the weight and inertia of the armature 24 are large. The armature 24 will move between the direction towards the core and the direction away from the core with the impact. If the movement direction of the armature 24 when the relay is subjected to the impact or vibration is consistent with the movement direction of the auxiliary moving contact 110 relative to the auxiliary static contact 120, the contact or separation state between the auxiliary moving contact 110 and the auxiliary static contact 120 in the auxiliary monitoring assembly 100 will be affected, and the contact or separation state between the moving contact 12 and the static contact 11 cannot be accurately monitored, thereby reducing the reliability of the relay.

[0073] In order to solve this problem, as shown in Figures 1-4 The relay provided by the embodiment, the movement direction of the armature 24 when the relay is subjected to the impact or vibration (such as T1 shown in Figure 4 The movement direction of the auxiliary moving contact 110 relative to the auxiliary static contact 120 (such as T2 shown in Figure 4 The movement direction of the auxiliary moving contact 110 relative to the auxiliary static contact 120 (such as T2 shown in

[0074] The relay provided by the embodiment sets the action direction of the auxiliary moving spring 110 relative to the auxiliary static spring 120 to be different from the movement direction of the armature 24 when the relay is impacted or vibrated, optimizes the position of the auxiliary monitoring assembly 100 in the relay, reduces the risk of misoperation of the auxiliary moving spring 110 and the auxiliary static spring 120 when the armature 24 is impacted or vibrated, improves the anti-impact and anti-vibration performance of the auxiliary monitoring assembly 100, thereby improving the reliability of the relay to meet the requirements of automotive-grade components.

[0075] In one embodiment, as shown in Figures 1-4 , the movement direction of the armature 24 when impacted or vibrated is perpendicular to the action direction of the auxiliary moving spring 110 relative to the auxiliary static spring 120.

[0076] Since the two directions are perpendicular to each other, the movement of the armature 24 when impacted or vibrated will not produce a component movement in the action direction of the auxiliary moving spring 110 relative to the auxiliary static spring 120, thereby not affecting the contact or separation state between the auxiliary moving spring 110 and the auxiliary static spring 120, and improving the anti-impact and anti-vibration performance of the auxiliary monitoring assembly 100.

[0077] As can be understood, as shown in Figures 1-4 , the moving spring 12 and the static spring 11 can be in direct contact or separation, and the moving spring 12 can be provided with a moving contact 121 on the side facing the static spring 11, and the static spring 11 can be provided with a static contact 111 on the side facing the moving spring 12, the moving contact 121 and the static contact 111 are in contact or separation with each other, and the moving contact 121 and the static contact 111 form a contact group.

[0078] Of course, the moving spring 12 and the moving contact 121 can be separately provided or integrally formed, and the static spring 11 and the static contact 111 can be separately provided or integrally formed. In addition, the embodiment does not limit the specific contact form between the moving spring 12 and the static spring 11, as long as the contact or separation between the moving spring 12 and the static spring 11 can be achieved, which is within the protection scope of the embodiment.

[0079] The number of contact groups is at least one, and the contact groups and the contact portions are correspondingly arranged, that is, the number of contact groups is consistent with the number of contact portions. The embodiment does not limit the number of contact groups, and the number of contact groups can be adjusted according to actual production needs, taking the number of contact groups as two for example.

[0080] The direction of movement of the moving spring 12 relative to the stationary spring 11 is defined as the first direction, which is identified by D1. The arrangement direction of the two contact groups is defined as the second direction, which is identified by D2. The third direction is identified by D3. The first direction, the second direction, and the third direction are perpendicular to each other. The first direction, the second direction, and the third direction only represent spatial directions and have no substantial meaning.

[0081] It is understood that the direction of motion of the armature 24 when subjected to impact or vibration is consistent with the direction of motion of the movable spring 12 relative to the stationary spring 11. The direction of motion of the armature 24 when subjected to impact or vibration is the first direction, and the direction of motion of the auxiliary movable spring 110 relative to the auxiliary stationary spring 120 is the third direction. Of course, in other embodiments, the direction of motion of the armature 24 when subjected to impact may be the same as or different from the direction of motion of the movable spring 12 relative to the stationary spring 11, and can be adjusted according to the actual production situation.

[0082] In one embodiment, such as Figures 3-4 As shown, the auxiliary stationary reed 120 includes an auxiliary normally open stationary reed 1201, and an auxiliary moving reed 110 is provided with an auxiliary moving contact 1101 on the side facing the auxiliary normally open stationary reed 1201. The auxiliary normally open stationary reed 1201 is provided with an auxiliary normally open stationary contact 1202 corresponding to the auxiliary moving contact 1101; and / or, the auxiliary stationary reed 120 includes an auxiliary normally closed stationary reed 1203, and an auxiliary moving reed 110 is provided with an auxiliary moving contact 1101 on the side facing the auxiliary normally closed stationary reed 1203. The auxiliary normally closed stationary reed 1203 is provided with an auxiliary normally closed stationary contact 1204 corresponding to the auxiliary moving contact 1101.

[0083] Specifically, the auxiliary contacts of the auxiliary monitoring component 100 can be a changeover contact structure, that is, simultaneously having an auxiliary normally open stationary contact 1202, an auxiliary normally closed stationary contact 1204, and an auxiliary moving contact 1101. In this case, the auxiliary normally open stationary contact 1202 and the auxiliary normally closed stationary contact 1204 are located on both sides of the auxiliary moving contact 1101 along a third direction. In actual use, a normally open contact structure can be adopted according to actual needs, that is, only containing the auxiliary normally open stationary contact 1202 and the auxiliary moving contact 1101; or a normally closed contact structure can be adopted, that is, only containing the auxiliary normally closed stationary contact 1204 and the auxiliary moving contact 1101.

[0084] The state of the auxiliary monitoring component 100 can be the same as the state of the contact component 1. For example, if the moving contact 121 and the stationary contact 111 are open and in the main contact separation state, then the auxiliary moving contact 1101 and the auxiliary normally open stationary contact 1202 are open and in the auxiliary contact separation state; if the moving contact 121 and the stationary contact 111 are closed and in the main contact contact state, then the auxiliary moving contact 1101 and the auxiliary normally open stationary contact 1202 are closed and in the auxiliary contact contact state.

[0085] The state of the auxiliary monitoring assembly 100 can be different from the state of the contact assembly 1, for example, when the movable contact 121 and the fixed contact 111 are disconnected, in the main contact separation state, the auxiliary movable contact 1101 and the auxiliary normally closed fixed contact 1204 are closed, in the auxiliary contact contact state; the movable contact 121 and the fixed contact 111 are closed, in the main contact contact state, the auxiliary movable contact 1101 and the auxiliary normally closed fixed contact 1204 are disconnected, in the auxiliary contact separation state. Of course, the auxiliary contact can also use the form of the converted contact.

[0086] It should be particularly pointed out that the auxiliary normally open fixed spring 1201 and the auxiliary normally closed fixed spring 1203 can be optimized, that is, they are essentially the same part, and can share a mold, thereby reducing the production cost of the relay.

[0087] In one embodiment, as shown in Figures 3-4 The relay further comprises a push rod 200, one end of the push rod 200 is connected to the armature 24, and the other end can drive the auxiliary movable spring 110 to act.

[0088] The push rod 200 cooperates with the armature 24, and the movement of the armature 24 drives the movement of the push rod 200, and the movement of the push rod 200 drives the movement of the auxiliary movable spring 110, that is, the armature 24 drives the auxiliary movable spring 110 to act through the push rod 200, to realize the contact or separation between the auxiliary movable spring 110 and the auxiliary fixed spring 120, to realize the closing and opening of the auxiliary movable spring 110 and the auxiliary fixed spring 120, and the opening and closing state between the auxiliary movable spring 110 and the auxiliary fixed spring 120 is associated with the opening and closing state between the movable spring 12 and the fixed spring 11.

[0089] It should be particularly pointed out that the other end of the push rod 200 and the auxiliary movable spring 110 can be in abutment with each other, and the push rod 200 can directly drive the auxiliary movable spring 110 to move; it can also be that there is a certain gap between the other end of the push rod 200 and the auxiliary movable spring 110, and the push rod 200 moves a certain distance in the gap before contacting the auxiliary movable spring 110, and then drives the auxiliary movable spring 110 to move. Of course, in some other embodiments, the other end of the push rod 200 can be directly fixedly connected with the auxiliary movable spring 110.

[0090] Among them, the push rod 200 is made of insulating material, for example, insulating plastic, etc. In this way, the insulation between the armature 24 and the auxiliary movable spring 110 is realized.

[0091] In one embodiment, as shown in Figures 4-5As shown, the push rod 200 includes a first connecting portion 220 connected to the armature 24 and a second connecting portion 230 arranged at an angle relative to the first connecting portion 220, one end of the second connecting portion 230 being connected to the first connecting portion 220 and the other end being capable of driving the auxiliary moving reed 110.

[0092] Specifically, when the armature 24 moves in the first direction, the armature 24 can transmit power to the first connecting portion 220. Since the first connecting portion 220 and the second connecting portion 230 are at an angle, the direction of the power is converted, and under the transmission of the push rod 200, the movement of the armature 24 in the first direction is converted into the movement of the auxiliary moving reed 110 in the third direction.

[0093] The angle between the first connecting portion 220 and the second connecting portion 230 can be 90°, and the first connecting portion 220 and the second connecting portion 230 are perpendicular to each other, forming an L-shaped structure. In this embodiment, the angle between the first connecting portion 220 and the second connecting portion 230 is 90° as an example, and the angle between the two can also be 30°, 60° or 120°, etc.

[0094] In one embodiment, as shown, the push rod 200 and the auxiliary moving reed 110 are movably connected, one of the sides of the push rod 200 and the auxiliary moving reed 110 close to each other is provided with a limiting portion 210, and the other is provided with a limiting matching portion 1102 for limiting the push rod 200. Figures 4-5

[0095] When there is a certain gap between the push rod 200 and the auxiliary moving reed 110, the push rod 200 and the auxiliary moving reed 110 are movably connected, and under the cooperation of the limiting portion 210 and the limiting matching portion 1102, on the one hand, the movement range of the armature 24 can be limited, reducing the risk of the push rod 200 moving in the first direction and escaping from the moving reed 12 during the operation of the armature 24, avoiding the situation of relay failure; on the other hand, when the armature 24 is impacted and vibrated, the limiting portion 210 and the limiting matching portion 1102 can further limit the push rod 200, and then limit the armature 24, so that the entire relay has good anti-impact and anti-vibration performance.

[0096] ​Specifically, the second connecting portion 230 in the push rod 200 is provided with a limiting portion 210 at one end away from the first connecting portion 220, and the limiting portion 210 can be a limiting block. The auxiliary spring sheet 110 is provided with a limiting fitting portion 1102 on one side of the push rod 200, and the limiting fitting portion 1102 is specifically a flange formed along the edge of the spring sheet 12. Of course, the limiting portion 210 can also be a sliding block, and the limiting fitting portion 1102 is a sliding groove. The sliding block is arranged in the sliding groove and is in sliding fit with the sliding groove. The specific structure form between the limiting portion 210 and the limiting fitting portion 1102 is not limited in this embodiment, and can be adjusted according to the actual production situation.

[0097] In one embodiment, as shown in Figures 5-7 The push rod 200 is provided with a plug-in slot 250 on one side of the armature 24, and the armature 24 is provided with a connecting extension 243 corresponding to the plug-in slot 250, and the connecting extension 243 is clamped in the plug-in slot 250.

[0098] The connecting extension 243 is the connecting position of the armature 24 and the push rod 200, and the connecting extension 243 is arranged on the side of the armature 24 close to the push rod 200. The connecting extension 243 is close to the push rod 200, which facilitates the connection between the connecting extension 243 and the push rod 200. The plug-in slot 250 is arranged on the connecting extension 243. By using the plug-in slot 250 of the push rod 200 and the connecting extension 243 of the armature 24, the interference plug-in of the push rod 200 and the armature 24 is realized, and the connection strength between the push rod 200 and the armature 24 is improved.

[0099] In one embodiment, as shown in Figures 5-7 The push rod 200 is provided with a fixed protrusion 240 corresponding to the plug-in slot 250, and the connecting extension 243 of the armature 24 is provided with a fixed groove 241 corresponding to the fixed protrusion 240, and the fixed protrusion 240 is filled into the fixed groove 241 after high-temperature melting.

[0100] Specifically, the fixed protrusion 240 is arranged at the position where the push rod 200 and the armature 24 cooperate, that is, a convex structure is additionally arranged, and the fixed protrusion 240 is specifically a hot riveting riveting point. The fixed groove 241 is a groove arranged on the connecting extension 243. When the armature 24 and the push rod 200 are assembled, hot riveting treatment is required. After the fixed protrusion 240 made of plastic material is melted, the fixed protrusion 240 is fixedly fitted with the fixed groove 241, so as to prevent the push rod 200 from falling off the armature 24 under impact and vibration.

[0101] It needs to be particularly pointed out that after the interference fit of the insertion slot 250 of the push rod 200 and the connecting extension 243 of the armature 24 is in place, the fixing protrusion 240 of the push rod 200 is staked and melted into the fixing groove 241 of the armature 24, thereby playing a role in strengthening the separation force. The interference fit force between the push rod 200 and the armature 24 and the force formed by the melting of the fixing protrusion 240 into the fixing groove 241 play a double insurance role, making the push rod 200 and the armature 24 more difficult to separate, strengthening the separation force of the push rod 200 and the armature 24, thereby meeting the higher anti-vibration impact requirements of vehicle products.

[0102] In one embodiment, as shown in Figures 6-7 The side of the armature 24 close to the push rod 200 is provided with a stop portion 242, and the stop portion 242 and the connecting extension 243 are arranged in parallel and spaced apart. The stop portion 242 is used to limit the position of the armature 24.

[0103] Specifically, the connecting extension 243 and the stop portion 242 are arranged in parallel and spaced apart, and do not affect each other. The stop portion 242 can cooperate with components such as the shell or the base, and further play a role in limiting the movement position of the armature 24, thereby ensuring the performance of the relay.

[0104] The edge of the side of the stop portion 242 away from the armature 24 and the edge of the side of the connecting extension 243 away from the armature 24 are flush with each other, so as to facilitate automatic feeding.

[0105] In other words, the length of the stop portion 242 along the second direction is the same as the length of the connecting extension 243 along the second direction, or the edge of the side of the stop portion 242 away from the armature 24 along the second direction is flush with the edge of the side of the connecting extension 243 away from the armature 24 along the second direction, thereby ensuring automatic feeding production of the armature 24.

[0106] In one embodiment, as shown in Figures 8-9 The magnetic circuit assembly 2 further includes a coil holder 21, a coil 22, an iron core 25, and a yoke 23. The coil holder 21 is used to wind the coil 22. The iron core 25 is arranged through the coil holder 21. The iron core 25 is arranged corresponding to the armature 24. The yoke 23 is at least partially arranged on the side of the coil 22 away from the contact assembly 1. The yoke 23 is provided with a knife edge. The armature 24 is arranged to rotate around the knife edge.

[0107] When the coil 22 is energized, that is, when the coil 22 is excited, the iron core 25 will attract the armature 24. The armature 24 rotates around the knife edge of the yoke 23. The armature 24 drives the moving contact 12 to move along the first direction and towards the side close to the static contact 11. The moving contact 12 and the static contact 11 are in contact, or the moving contact 121 of the moving contact 12 and the static contact 111 of the static contact 11 are in contact, thereby realizing the connection of the moving contact 121 and the static contact 111.

[0108] When the coil 22 is disconnected, i.e. the coil 22 is de-energized, the magnetic field disappears, the armature 24 is driven by the counterforce of the moving reed 12 to move in the first direction away from the static reed 11, so that the moving reed 12 is separated from the static reed 11 or the moving contact 121 of the moving reed 12 is separated from the static contact 111 of the static reed 11, thereby realizing the disconnection of the moving contact 121 and the static contact 111.

[0109] It can be understood that the armature 24 rotates around the knife edge of the yoke 23, and the armature 24 has a swinging tendency. The armature 24 can drive the moving reed 12 to move and assist the moving reed 110 to move, thereby realizing the auxiliary monitoring function.

[0110] It should be particularly pointed out that the yoke 23 is in an L-shaped structure, and the horizontal part of the yoke 23 is fixed on the coil holder 21 through the iron core 25, and the vertical part of the yoke 23 is arranged on the side of the coil 22 away from the contact part of the contact assembly 1.

[0111] In an embodiment, as shown in Figures 8-9 the two ends of the coil holder 21 in the axial direction are respectively provided with two flanges for limiting the position of the coil 22. The two flanges are respectively a first flange 211 and a second flange 212, and the first flange 211 and the second flange 212 are respectively arranged at the two ends of the coil holder 21 in the first direction. The first flange 211 is located above the second flange 212, and the first flange 211 can be referred to as an upper flange, and the second flange 212 can be referred to as a lower flange. The first flange 211 and the second flange 212 serve to limit the position of the coil 22, so as to avoid the coil 22 from deviating from the coil holder 21.

[0112] In an embodiment, as shown in Figures 8-9 the relay further comprises an insulating plate 300 arranged between the coil holder 21 and the yoke 23.

[0113] The insulating plate 300 is made of an insulating material, such as plastic, and is arranged between the coil holder 21 and the vertical part of the yoke 23. The insulating plate 300 serves to insulate and isolate the coil 22 and the yoke 23.

[0114] In an embodiment, as shown in Figures 10-11 the insulating plate 300 and the coil holder 21 are arranged close to each other on one side of the other, and one of them is provided with a clamping protrusion 310, and the other is provided with a clamping groove 213, and the clamping protrusion 310 is clamped in the clamping groove 213.

[0115] Specifically, the insulating plate 300 is provided with a clamping protrusion 310 on the side facing the coil holder 21, the coil holder 21 is provided with a clamping groove 213 corresponding to the clamping protrusion 310 on the side facing the insulating plate 300, the clamping protrusion 310 is clamped in the clamping groove 213, which not only achieves the fixing effect of the insulating plate 300 and the coil holder 21, but also improves the creepage distance between the coil 22 and the auxiliary contact, thereby improving the insulation resistance.

[0116] Specifically, the clamping protrusion 310 includes a first clamping protrusion, and the clamping groove 213 includes a first clamping groove. The first clamping protrusion and the first clamping groove are in a strip-shaped structure arranged along a second direction. The first clamping protrusion is clamped in the first clamping groove to achieve the fixing of the insulating plate 300 and the coil holder 21 along the second direction. The number of the first clamping protrusion and the first clamping groove is two. The two first clamping protrusions are arranged on the two sides of the insulating plate 300 along a first direction. The two first clamping grooves are arranged on the first flange 211 and the second flange 212 of the coil holder 21. The two first clamping protrusions are clamped in the two first clamping grooves to achieve the fixing of the insulating plate 300 and the coil holder 21 along the first direction.

[0117] Specifically, the clamping protrusion 310 includes a second clamping protrusion, and the clamping groove 213 includes a second clamping groove. The second clamping protrusion is in a block-shaped structure. The second clamping protrusion is clamped in the second clamping groove to further improve the fixing effect between the insulating plate 300 and the coil holder 21. The number of the second clamping protrusion and the second clamping groove is two. The two second clamping protrusions are arranged on the two sides of the first clamping protrusion along the second direction. The two second clamping grooves are arranged on the second flange 212 and on the two sides of the first clamping groove, respectively. The two second clamping protrusions are clamped in the two second clamping grooves to further improve the fixing effect of the insulating plate 300 and the coil holder 21 along the second direction.

[0118] In one embodiment, as shown in Figures 8-9 The relay further includes a mounting seat 400 and an insulating wall 500. The mounting seat 400 is connected to the coil holder 21, and the auxiliary moving contact 110 and the auxiliary stationary contact 120 are arranged in the mounting seat 400. The insulating wall 500 is arranged in the mounting seat 400, and the insulating wall 500 is arranged on the side of the yoke 23 away from the insulating plate 300.

[0119] The mounting seat 400 provides mounting positions for the auxiliary moving contact 110 and the auxiliary stationary contact 120. The insulating wall 500 can also be referred to as an insulating retaining wall. The insulating plate 300 and the insulating wall 500 are arranged on the two sides of the yoke 23 along a third direction. The insulating wall 500 not only blocks and insulates the auxiliary monitoring assembly, but also improves the insulation resistance between the main contact and the auxiliary contact.

[0120] It needs to be particularly pointed out that according to the functional division, the contact group formed by the moving contact 121 and the fixed contact 111 is the main contact, and the auxiliary moving contact 1101, the auxiliary fixed contact 111 (the auxiliary normally closed fixed contact 1204 and / or the auxiliary normally open fixed contact 1202) is the auxiliary contact.

[0121] It can be understood that the mounting seat 400 and the insulating wall 500 are made of insulating materials, and the mounting seat 400 and the insulating wall 500 are integrally formed, which reduces the assembly link of parts and saves production cost.

[0122] In addition, the mounting seat 400 is provided with an auxiliary moving spring blade leading end 600, the auxiliary moving spring blade leading end 600 is arranged along the first direction, and the auxiliary moving spring blade leading end 600 is connected to one end of the auxiliary moving spring blade 110 away from the auxiliary moving contact 1101.

[0123] In one embodiment, as shown in Figures 8-9 One of the insulating plate 300 and the insulating wall 500 is provided with a plug-in part 510, and the other is provided with a plug-in matching part 320. The plug-in part 510 is arranged in the plug-in matching part 320, and is used for positioning between the insulating plate 300 and the insulating wall 500.

[0124] Specifically, the insulating wall 500 is provided with a plug-in protrusion close to one side of the insulating plate 300 and towards the insulating plate 300, forming a plug-in part 510, and the insulating plate 300 is provided with a plug-in groove close to one side of the insulating wall 500, forming a plug-in matching part 320. The plug-in protrusion is arranged in the plug-in groove, and the sides of the insulating plate 300 and the insulating wall 500 close to each other adopt a plug-in structure, which on the one hand realizes the rough positioning between the insulating plate 300 and the insulating wall 500, and on the other hand, the two insulating plates of the insulating plate 300 and the insulating wall 500 are plugged in, thereby improving the creepage distance of the relay.

[0125] Among them, the plug-in protrusion is an L-shaped structure, and the plug-in groove is similar to a rectangular groove structure. The two side arms of the L-shaped structure extend along the first direction and the second direction respectively, and the two side arms of the L-shaped structure are respectively attached to the two adjacent side walls of the rectangular groove, so as to realize the initial positioning between the insulating wall 500 and the insulating plate 300 along the first direction and the second direction.

[0126] In one embodiment, an avoiding space is formed between the plug-in part 510 and the plug-in matching part 320, and the avoiding space is used for avoiding the push rod 200.

[0127] After the plug-in protrusion and the plug-in groove are plugged in by the plug-in method, the plug-in protrusion does not fill all the space in the plug-in groove, but an avoiding space is formed between the plug-in protrusion and the plug-in groove (as Figure 1As shown, the two side arms of the plug protrusion and the groove bottom of the plug groove form an avoiding space, which avoids the push rod 200, and the push rod 200 does not need to protrude from the insulating wall 500, thereby improving the utilization of the internal space of the relay and meeting the demand for miniaturization of the relay. In addition, the avoiding space can also limit the push rod 200 to a certain extent, which is used to limit the activity range of the push rod 200.

[0128] In one embodiment, as shown in the drawings, the mounting seat 400 and the coil support 21 are provided with a positioning protrusion 410 and a positioning groove 214, respectively, and the positioning protrusion 410 is clamped in the positioning groove 214, which is used for positioning between the insulating wall 500 and the coil support 21. Figures 12-13

[0129] Specifically, the mounting seat 400 is provided with a positioning protrusion 410 in the direction towards the coil support 21, and the second flange 212 of the coil support 21 is provided with a positioning groove 214 corresponding to the positioning protrusion 410, and the positioning protrusion 410 is clamped in the positioning groove 214, thereby achieving precise positioning of the mounting seat 400 relative to the coil support 21.

[0130] It can be understood that the positioning protrusion 410 is a block structure, and the cross section of the positioning protrusion 410 and the positioning groove 214 is a T-shaped structure, which further improves the positioning effect between the mounting seat 400 and the coil support 21.

[0131] It should be particularly pointed out that the positioning groove 214 and the second clamping groove are both arranged on the second flange 212 of the coil support 21, and the positioning groove 214 and the second clamping groove are arranged at intervals.

[0132] It should be noted that the relay shown in the drawings and described in the specification is only an example of the principle of the present application. It should be clearly understood by those skilled in the art that the principle of the present application is not limited to any detail or any component of the device shown in the drawings or described in the specification.

[0133] It should be understood that the present application does not limit its application to the detailed structure and arrangement of the components proposed in the specification. The present application can have other embodiments and can be implemented and executed in various ways. The foregoing modifications and modifications fall within the scope of the present application. It should be understood that the present application disclosed and limited in the specification extends to all alternative combinations of two or more individual features mentioned in the text and / or drawings. All these different combinations constitute alternative aspects of the present application. The embodiments described in the specification illustrate the best way known for implementing the present application and will enable those skilled in the art to utilize the present application.

[0134] ​Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0135] It is to be understood that the application is not limited to the precise structures hereinabove described and shown in the drawings, for purposes of illustration and education only, and that various modifications and changes can be made therein without departing from the scope thereof. The scope of the application is indicated by the claims appended hereto.

Claims

1. A relay characterized by comprising: The relay comprises: a contact assembly comprising a moving spring and a stationary spring; a magnetic circuit assembly comprising an armature, the armature driving the moving spring and the stationary spring to contact or separate; an auxiliary monitoring assembly comprising an auxiliary moving spring and an auxiliary stationary spring, the auxiliary moving spring being connected to the armature, the armature driving the auxiliary moving spring to move, the auxiliary moving spring contacting or separating from the auxiliary stationary spring; a push rod comprising a first connecting portion and a second connecting portion, the first connecting portion being connected to the armature, the second connecting portion being arranged at an angle relative to the first connecting portion, one end of the second connecting portion being connected to the first connecting portion, the other end of the second connecting portion being capable of driving the auxiliary moving spring to move; wherein the movement direction of the armature when the relay is subjected to impact or vibration is not in the same direction as the movement direction of the auxiliary moving spring relative to the auxiliary stationary spring, so as to avoid the armature driving the auxiliary moving spring and the auxiliary stationary spring to be mistakenly operated to contact when the relay is subjected to impact or vibration.

2. The relay according to claim 1, characterized in that The movement direction of the armature when the relay is subjected to impact or vibration is perpendicular to the movement direction of the auxiliary moving spring relative to the auxiliary stationary spring.

3. The relay of claim 1, wherein The push rod and the auxiliary moving spring are movably connected, one of the side of the push rod and the auxiliary moving spring close to each other is provided with a limiting portion, and the other is provided with a limiting matching portion, for limiting the push rod.

4. The relay of claim 1, wherein The side of the push rod close to the armature is provided with an insertion slot, the armature is provided with a connecting extension corresponding to the insertion slot, and the connecting extension is inserted into the insertion slot.

5. The relay according to claim 4, characterized in that The push rod is provided with a fixed protrusion corresponding to the insertion slot, the connecting extension of the armature is provided with a fixed groove corresponding to the fixed protrusion, and the fixed protrusion is filled into the fixed groove after high-temperature melting.

6. The relay of claim 4, wherein The side of the armature close to the push rod is provided with a stop portion, the stop portion and the connecting extension are arranged in parallel and at intervals, the stop portion is used for limiting the armature, and the edge of the side of the stop portion away from the armature and the edge of the side of the connecting extension away from the armature are flush with each other.

7. The relay of claim 1, wherein The magnetic circuit assembly further comprises: a coil holder for winding the coil; an iron core penetrating the coil holder, the iron core corresponding to the armature; a yoke at least partially arranged on the side of the coil away from the contact portion of the contact assembly; wherein the yoke is provided with a knife edge, and the armature is arranged around the knife edge.

8. The relay according to claim 7, characterized in that The relay further comprises: an insulating plate arranged between the coil holder and the yoke; wherein one of the side of the insulating plate and the coil holder close to each other is provided with a clamping protrusion, and the other is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove.

9. The relay according to claim 8, characterized in that The relay further comprises: a mounting seat connected to the coil holder, the auxiliary moving spring and the auxiliary stationary spring being arranged on the mounting seat; an insulating wall arranged on the mounting seat, the insulating wall being arranged on the side of the yoke away from the insulating plate.

10. The relay of claim 9, wherein One of the insulation board and the insulation wall is provided with a plug-in part, and the other is provided with a plug-in matching part, the plug-in part is arranged in the plug-in matching part, and is used for positioning between the insulation board and the insulation wall.

11. The relay according to claim 10, characterized in that An avoiding space is formed between the plug-in part and the plug-in matching part, and is used for avoiding the push rod.

12. The relay of claim 9, wherein, One of the mounting seat and the coil holder is provided with a positioning protrusion, and the other is provided with a positioning slot, the positioning protrusion is clamped in the positioning slot, and is used for positioning between the insulation wall and the coil holder.

13. The relay according to any one of claims 1 to 12, characterized in that The auxiliary static spring sheet comprises an auxiliary normally-open static spring sheet, the auxiliary moving contact is arranged on one side of the auxiliary normally-open static spring sheet, and the auxiliary normally-open static spring sheet is provided with an auxiliary normally-open static contact corresponding to the auxiliary moving contact; and / or, The auxiliary static spring sheet comprises an auxiliary normally-closed static spring sheet, the auxiliary moving contact is arranged on one side of the auxiliary normally-closed static spring sheet, and the auxiliary normally-closed static spring sheet is provided with an auxiliary normally-closed static contact corresponding to the auxiliary moving contact.

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