Moving contact structure and breaking device
By dividing the moving contact into multiple groups and utilizing the design of the support frame and limiting components, close contact between the moving contact and the stationary contact is achieved, solving the problem of increased space occupation by the moving contact in the prior art, and improving the contact effect and current switching performance.
Patent Information
- Application Number
- CN202423136570.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the prior art, in order to ensure good contact between the moving contact and the stationary contact, the cross-sectional area of the moving contact is usually increased, which increases the space occupied by the disconnecting device.
The moving contact structure is designed to divide the moving contact into multiple first moving contact groups and second moving contact groups in the first direction. Through the cooperation of the support frame, limiting components and elastic elements, multiple moving contacts are made to make close contact with the stationary contact, ensuring good contact effect without increasing the space occupied by the device.
Without increasing the space occupied by the disconnecting device, the contact area between the moving contact and the stationary contact is increased, the contact resistance is reduced, and good current switching performance is ensured.
Smart Images
Figure CN223598562U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of switches, in particular to a moving contact structure and a breaking device. BACKGROUND
[0002] The breaking device is an electrical device capable of controlling the on-off of current. The breaking device generally comprises a shell, a static contact and a moving contact. When the static contact and the moving contact are in contact, the circuit current of the breaking device is on, and the circuit works normally. When the moving contact is separated from the static contact, the circuit current of the breaking device is off.
[0003] In order to ensure good contact between the moving contact and the static contact, the prior art generally adopts the method of increasing the cross-sectional area of the moving contact.
[0004] However, this method requires a larger space in the shell for the moving contact, which accordingly increases the occupied space of the breaking device. CONTENT OF THE INVENTION
[0005] The present application provides a moving contact structure and a breaking device, which are used to reduce the possibility of increasing the occupied space of the breaking device while ensuring good contact between the moving contact and the static contact.
[0006] In order to achieve the above-mentioned purpose, in a first aspect, the present application provides a moving contact structure, comprising a bearing frame, a first moving contact group, a second moving contact group, a limiting assembly and an elastic member. The bearing frame has a through cavity. The first moving contact group comprises a plurality of first moving contacts arranged in sequence along a first direction. One end of the first moving contact along a second direction penetrates the cavity, and the first moving contact is slidingly arranged on the bearing frame along a third direction. The two adjacent first moving contacts are electrically connected. The first direction, the second direction and the third direction are perpendicular to each other. The second moving contact group is arranged opposite to the first moving contact group. The second moving contact group comprises a plurality of second moving contacts arranged in sequence along the first direction. One end of the second moving contact along the second direction penetrates the cavity, and the second moving contact is slidingly arranged on the bearing frame along the third direction. The two adjacent second moving contacts are electrically connected. The limiting assembly is arranged on the bearing frame, and the limiting assembly cooperates with the bearing frame to limit the first moving contact group and the second moving contact group on the bearing frame. The elastic member is used to apply a force to the second moving contact to make it close to the first moving contact.
[0007] When the first moving contact group and the second moving contact group are switched from the disengaging position to the contact position, when the first moving contact and the second moving contact are in contact with the static contact, the static contact is between the first moving contact and the second moving contact, the first moving contact and the second moving contact slide in the third direction in opposite directions relative to the carrier, and the carrier continues to drive the first moving contact group and the second moving contact group to rotate relative to the shell until the first moving contact group and the second moving contact group are in the contact position and the first moving contact group and the second moving contact group are in stable contact with the static contact.
[0008] When the static contact is between the first moving contact and the second moving contact, the second moving contact has an action force towards the first moving contact under the action of the elastic member, the action force is applied to the static contact, the second moving contact has an action force towards the static contact, and the second moving contact is in close contact with the static contact. Further, the static contact has an action force towards the first moving contact, the static contact is in close contact with the first moving contact, and thus the first moving contact and the second moving contact can be in close contact with the static contact.
[0009] In the present application, the number of first moving contacts is multiple, the number of first moving contacts in close contact with the static contact at one end of the first moving contact group is multiple, and the area of the first moving contact group in contact with the static contact can be increased. At the same time, the number of second moving contacts is multiple, and the number of second moving contacts in close contact with the static contact at one end of the second moving contact group is multiple, and the area of the second moving contact group in contact with the static contact can be increased, ensuring good contact between the first moving contact group and the second moving contact group and the static contact and reducing the contact resistance.
[0010] The original moving contact can be divided into multiple moving contacts in the first direction without changing the size of the moving contact in the first direction, thereby forming the first moving contact group or the second moving contact group. In this way, when the first moving contact group and the second moving contact group are in the contact position, multiple first moving contacts can be ensured to be in contact with the static contact at the same time, and multiple second moving contacts can be ensured to be in contact with the static contact at the same time.
[0011] Therefore, the moving contact structure provided by the present application can ensure good contact between the moving contact and the static contact without increasing the occupied space and reducing the possibility of increasing the occupied space of the breaking device.
[0012] In a possible implementation, a support column is arranged on the side of the first moving contact facing the second moving contact and / or on the side of the second moving contact facing the first moving contact.
[0013] When the technical scheme is adopted, the gap between the first moving contact and the second moving contact is formed, so that the stationary contact can smoothly enter the first moving contact and the second moving contact.
[0014] In a possible implementation, the limiting assembly includes a first limiting frame, a second limiting frame and a third limiting frame. The first limiting frame is arranged to slide along the third direction on the bearing frame. The first limiting frame has a first bearing surface, and the first moving contact is limited on the first bearing surface. The first bearing surface is provided with one of a first recess and a first protrusion matched with each other. The first moving contact is provided with the other one of the first recess and the first protrusion. The second limiting frame is arranged to slide along the third direction on the bearing frame. The second limiting frame has a second bearing surface, and the first bearing surface and the second bearing surface are arranged opposite to each other. The second moving contact is limited on the second bearing surface. The second bearing surface is provided with one of a second recess and a second protrusion matched with each other, and the second moving contact is provided with the other one of the second recess and the second protrusion. The two ends of the elastic member are elastically applied to the first limiting frame and the second limiting frame respectively, and are used to apply a force close to the first limiting frame to the second limiting frame in the third direction. The third limiting frame is clamped with the bearing frame. One side of the first limiting frame along the second direction is limited on the third limiting frame, and the other side of the first limiting frame along the second direction is limited on the bearing frame. One side of the second limiting frame along the second direction is limited on the third limiting frame, and the other side of the second limiting frame along the second direction is limited on the bearing frame.
[0015] In a possible implementation, the first limiting frame includes a first bearing part, a first limiting part and a first supporting part connected with each other, and the first bearing part, the first limiting part and the first supporting part form a first U-shaped space. The second limiting frame is arranged in the first U-shaped space, and one side of the first bearing part close to the first supporting part is the first bearing surface. One end of the elastic member is elastically applied to the first supporting part. One side of the first limiting part along the second direction is limited on the third limiting frame, and the other side of the first limiting part along the second direction is limited on the bearing frame.
[0016] In a possible implementation, the second limiting frame includes a second bearing part and a second limiting part connected with each other, and the second bearing part and the second limiting part form an L-shaped structure. One side of the second bearing part close to the second moving contact group is the second bearing surface. The second limiting part is arranged on the two sides of the first moving contact group along the first direction respectively, and the other end of the elastic member is elastically applied to the second bearing part. One side of the second limiting part along the second direction is limited on the third limiting frame, and the other side of the second limiting part along the second direction is limited on the bearing frame.
[0017] In a possible implementation, one side of the second bearing part away from the second limiting part is provided with two first extension parts arranged opposite to each other, and the two first extension parts are used for limiting contact with the two sides of the first limiting part along the second direction.
[0018] By using the technical scheme, the stability of the interaction between the first limiting frame and the second limiting frame is improved, and the structural integrity of the moving contact structure provided by the embodiment of the application is improved.
[0019] In a possible implementation, the carrier frame has two oppositely arranged clamping surfaces, and the two clamping surfaces are sequentially arranged along the first direction. The third limiting frame includes a connecting portion and two oppositely arranged clamping portions, and the two clamping portions are located on two sides of the connecting portion along the first direction respectively; the connecting portion and the clamping portions surround to form a second U-shaped space. The first limiting portion and the second limiting portion are both located on the side of the connecting portion close to the clamping portion along the second direction. The connecting portion is provided with a through hole in communication with the cavity, and one end of the first moving contact group and the second moving contact group along the second direction sequentially passes through the through hole and the cavity. The distance between the two clamping portions is less than the distance between the two clamping surfaces, so as to enable the third limiting frame to be clamped to the carrier frame.
[0020] In a possible implementation, one of the third protruding portion and the third recessed portion is arranged on at least one clamping surface, and the other of the third protruding portion and the third recessed portion is arranged on the clamping portion corresponding to the clamping surface.
[0021] By using the technical scheme, when the third limiting frame is arranged on the carrier frame, the third protruding portion and the third recessed portion are matched, so as to limit the position of the third limiting frame on the carrier frame and enhance the firmness of the third limiting frame installed on the carrier frame.
[0022] In a possible implementation, the carrier frame is provided with a fourth protruding portion at two ends along the third direction, and the fourth protruding portion extends along the circumferential direction of the rotation axis of the carrier frame.
[0023] By using the technical scheme, when the carrier frame contacts the shell, the fourth protruding portion contacts the shell, the contact area is small, the friction is small, the friction resistance is reduced, and the rotation of the carrier frame relative to the shell is facilitated.
[0024] In a possible implementation, the carrier frame has two oppositely arranged clamping surfaces, and the two clamping surfaces are sequentially arranged along the first direction. The third limiting frame includes a connecting portion and two oppositely arranged clamping portions, and the two clamping portions are located on two sides of the connecting portion along the first direction respectively; the connecting portion and the clamping portions surround to form a second U-shaped space. The first limiting portion and the second limiting portion are both located on the side of the connecting portion close to the clamping portion along the second direction. The connecting portion is provided with a through hole in communication with the cavity, and one end of the first moving contact group and the second moving contact group along the second direction sequentially passes through the through hole and the cavity. The distance between the two clamping portions is less than the distance between the two clamping surfaces, so as to enable the third limiting frame to be clamped to the carrier frame.
[0025] The beneficial effects of the breaking device provided in the second aspect can refer to the beneficial effects of the moving contact structure provided in the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 The schematic diagram of the moving contact structure provided by the embodiment of the application.
[0027] Figure 2 An exploded schematic view of a movable contact structure is provided for an embodiment of the present application.
[0028] Figure 3 A structural schematic view of a bearing frame is provided for an embodiment of the present application.
[0029] Figure 4 A partial structural schematic view of a movable contact structure is provided for an embodiment of the present application. Figure 1 .
[0030] Figure 5 A partial structural schematic view of a movable contact structure is provided for an embodiment of the present application. Figure 2 .
[0031] Figure 6 A partial structural schematic view of a movable contact structure is provided for an embodiment of the present application. Figure 3 .
[0032] Figure 7 A partial structural schematic view of a movable contact structure is provided for an embodiment of the present application. Figure 4 .
[0033] Figure 8 A structural schematic view of a first limiting frame is provided for an embodiment of the present application.
[0034] Figure 9 A structural schematic view of a second limiting frame is provided for an embodiment of the present application. Figure 1 .
[0035] Figure 10 A structural schematic view of a second limiting frame is provided for an embodiment of the present application. Figure 2 .
[0036] BRIEF DESCRIPTION OF THE DRAWINGS
[0037] 1 - bearing frame, 11 - cavity, 12 - clamping surface, 13 - third protruding part, 14 - fourth protruding part, 15 - limiting cavity wall;
[0038] 2 - first movable contact group, 21 - first movable contact, 211 - first recessed part;
[0039] 3 - second movable contact group, 31 - second movable contact; 311 - second recessed part;
[0040] 4 - limiting assembly, 41 - first limiting frame, 411 - first bearing part, 4111 - first protruding part, 412 - first limiting part,
[0041] 413 - first support part, 42 - second limiting frame, 421 - second bearing part, 4211 - second protruding part, 422 - second limiting part, 423 - first extending part, 43 - third limiting frame, 431 - connecting part, 4311 - through hole, 432 - clamping part, 4321 - clamping groove, 433 - second extending part;
[0042] 5 - support column;
[0043] 6 - elastic member. DETAILED DESCRIPTION
[0044] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.
[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the use of the terms "including," "comprising," "having" and variations thereof herein is meant to encompass the inclusion of the recited elements but not the exclusion of others not recited.
[0046] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Those of ordinary skill in the art will readily recognize a variety of ways to implement the application discussed herein without the use of the same word or phrase in different contexts.
[0047] The directional terms appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0048] In addition, the terms "first", "second", and the like in the description and claims of the present application or above-mentioned drawings are used to distinguish different objects, and are not used to describe a particular order, which can explicitly or implicitly include one or more of the features.
[0049] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).
[0050] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by spacer, for example, fixed connection by screw, bolt or other spacer; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection for connection. 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.
[0051] Firstly, the present application provides a breaking device, which is an electrical equipment capable of controlling current on-off.
[0052] It should be noted that the segmenting device provided by the embodiments of the present application can be a circuit breaker or a disconnector.
[0053] The segmenting device provided by the embodiments of the present application comprises a housing, a static contact and a moving contact structure as shown in Figure 1 、 Figure 2 .
[0054] The static contact is arranged in the housing, specifically, the static contact can be fixedly installed on the housing.
[0055] The fixed connection mode of the static contact and the housing is not specifically limited here. Exemplarily, the connection mode between the static contact and the housing can be screw connection, riveting, clamping, etc.
[0056] The moving contact structure provided by the embodiments of the present application comprises a first moving contact group 2 and a second moving contact group 3 for contacting the static contact. The first moving contact group 2 and the second moving contact group 3 are oppositely arranged.
[0057] The moving contact structure is rotatably arranged in the housing. When the moving contact structure rotates relative to the housing, the first moving contact group 2 and the second moving contact group 3 can be switched between the contact position and the disengagement position.
[0058] When the first moving contact group 2 and the second moving contact group 3 are in the contact position, the first moving contact group 2 and the second moving contact group 3 are in contact with the static contact, and the first moving contact group 2 and the second moving contact group 3 are located on the two sides of the static contact, that is, the first moving contact group 2 and the second moving contact group 3 are in contact with the opposite two sides of the static contact, so that the circuit current of the breaking device is turned on.
[0059] When the first moving contact group 2 and the second moving contact group 3 are in the disengagement position, the first moving contact group 2 and the second moving contact group 3 are in contact with the static contact, and the first moving contact group 2 and the second moving contact group 3 are located on the two sides of the static contact, that is, the first moving contact group 2 and the second moving contact group 3 are in contact with the opposite two sides of the static contact, so that the circuit current of the breaking device is turned on.
[0060] When the first moving contact group 2 and the second moving contact group 3 are in the disengagement position, the first moving contact group 2 and the second moving contact group 3 are in contact with the static contact, and the first moving contact group 2 and the second moving contact group 3 are located on the two sides of the static contact, that is, the first moving contact group 2 and the second moving contact group 3 are in contact with the opposite two sides of the static contact, so that the circuit current of the breaking device is turned on.
[0061] When the first moving contact group 2 and the second moving contact group 3 are in the disengagement position, the first moving contact group 2 and the second moving contact group 3 are in contact with the static contact, and the first moving contact group 2 and the second moving contact group 3 are located on the two sides of the static contact, that is, the first moving contact group 2 and the second moving contact group 3 are in contact with the opposite two sides of the static contact, so that the circuit current of the breaking device is turned on.
[0062] Please refer to Figure 1 and Figure 2 , the application embodiment provides a moving contact structure, which comprises a bearing frame 1, a first moving contact group 2, a second moving contact group 3, a limiting assembly 4 and an elastic piece 6.
[0063] Among them, the bearing frame 1 is used for bearing the first moving contact group 2, the second moving contact group 3 and the limiting assembly 4, and the bearing frame 1 provides stable support force for the first moving contact group 2, the second moving contact group 3 and the limiting assembly 4 while integrating the first moving contact group 2, the second moving contact group 3 and the limiting assembly 4 together.
[0064] In actual situation, the bearing frame 1 is rotatably connected with the shell. The first moving contact group 2, the second moving contact group 3 and the limiting assembly 4 are synchronously rotated relative to the shell along with the bearing frame 1.
[0065] The specific structure of the bearing frame 1 is not limited here, and exemplarily, the bearing frame 1 can be a cuboid structure or a multi-prism structure.
[0066] In the embodiments provided by the application, as shown in Figure 3 , Figure 1 and Figure 2 , the bearing frame 1 is a column structure. The bearing frame 1 has a through cavity 11, the through cavity 11 penetrates the bearing frame 1 along the second direction, and the rotation axis of the bearing frame 1 extends along the third direction.
[0067] The structure of the cavity 11 is not limited here and can be determined according to actual conditions.
[0068] Referring to FIGS. 1, 2 and 3, Figures 4 to 7 , Figure 1 and Figure 2 , the first moving contact group 2 includes a plurality of first moving contacts 21 arranged in sequence along a first direction.
[0069] The number of the first moving contacts 21 included in the first moving contact group 2 is not limited here and can be determined according to actual conditions.
[0070] For example, the number of the first moving contacts 21 can be two, three, four or more.
[0071] In embodiments provided in the present application, the number of the first moving contacts 21 is two.
[0072] In addition, it should be noted that the first moving contacts 21 are provided with first moving contact points, and the first moving contact points are arranged on the side of the first moving contacts 21 close to the second moving contacts 31. Moreover, the first moving contact points are arranged on both ends of the first moving contacts 21 along a second direction. The first moving contact points are used to contact the stationary contacts.
[0073] One end of the first moving contact 21 along the second direction penetrates the cavity 11. In actual conditions, the first moving contact 21 is a cuboid structure, and the length direction of the first moving contact 21 is parallel to the second direction.
[0074] At this time, the middle region of the first moving contact 21 is located in the cavity 11, and both ends of the first moving contact 21 are located outside the cavity 11, so that the first moving contact points arranged on both ends of the first moving contact 21 can contact the stationary contacts.
[0075] Referring to FIGS. 1, 2 and 3, Figures 4 to 7 , Figure 1 and Figure 2 , the second moving contact group 3 includes a plurality of second moving contacts 31 arranged in sequence along the second direction.
[0076] The number of the second moving contacts 31 included in the second moving contact group 3 is not limited here and can be determined according to actual conditions.
[0077] For example, the number of the second moving contacts 31 can be two, three, four or more.
[0078] The number of the first moving contacts 21 can be the same as or different from the number of the second moving contacts 31.
[0079] In embodiments provided in the present application, the number of the first moving contacts 21 is the same as the number of the second moving contacts 31, and both are two.
[0080] In addition, it should be noted that the second movable contact 31 is provided with a second movable contact point, and the second movable contact point is arranged on the side of the second movable contact 31 close to the first movable contact 21. In addition, the second movable contact 31 is provided with a second movable contact point at each end along the second direction. The second movable contact point is used to contact the static contact.
[0081] The second movable contact 31 passes through the cavity 11 at one end along the second direction. In fact, the structure of the second movable contact 31 is the same as that of the first static contact, and both are cuboid structures, and the length direction of the second movable contact 31 is parallel to the second direction.
[0082] At this time, the middle region of the second movable contact 31 is located in the cavity 11, and the two ends of the second movable contact 31 are located outside the cavity 11, so that the second movable contact points arranged at the two ends of the second movable contact 31 can contact the static contact.
[0083] The two adjacent first movable contacts 21 are electrically connected, and the two adjacent second movable contacts 31 are electrically connected, so that when the first movable contact 21 and the second movable contact 31 contact the static contact, the plurality of first movable contacts 21, the static contact, and the plurality of second movable contacts 31 form a loop.
[0084] The first movable contact 21 is slidably arranged on the carrier 1 along the third direction, and the first movable contact 21 can slide relative to the carrier 1 along the third direction.
[0085] When the first movable contact 21 slides relative to the carrier 1 along the third direction, the plurality of first movable contacts 21 do not interfere with each other, that is, any one of the plurality of first movable contacts 21 can slide relative to the carrier 1 along the third direction alone.
[0086] The first direction, the second direction, and the third direction are perpendicular to each other.
[0087] It should be noted that in the embodiments provided in the present application, the first direction, the second direction, and the third direction are only used to describe the positional relationship between the various components included in the structure of the movable contact, and are not a specific limitation of the present application.
[0088] The second movable contact 31 is slidably arranged on the carrier 1 along the third direction, and the second movable contact 31 can slide relative to the carrier 1 along the third direction.
[0089] When the second movable contact 31 slides relative to the carrier 1 along the third direction, the plurality of second movable contacts 31 do not interfere with each other, that is, any one of the plurality of second movable contacts 31 can slide relative to the carrier 1 along the third direction alone.
[0090] The second moving contact group 3 is arranged opposite to the first moving contact group 2. The first moving contact 21 is parallel to the second moving contact 31. The length direction of the first moving contact 21 and the second moving contact 31 is parallel to the second direction. The side of the first moving contact 21 close to the second moving contact 31 is parallel to the first direction. The side of the second moving contact 31 close to the first moving contact 1 is parallel to the first direction.
[0091] The limiting assembly 4 is arranged on the bearing frame 1. The limiting assembly 4 cooperates with the bearing frame 1 to limit the first moving contact group 2 and the second moving contact group 3 on the bearing frame 1. That is, the limiting assembly 4 cooperates with the bearing frame 1 to limit the first moving contact group 2 and the second moving contact group 3 in the first direction, the second direction and the third direction, so as to prevent the first moving contact group 2 and the second moving contact group 3 from being separated from the bearing frame 1.
[0092] In addition, the elastic member 6 is used to apply a force close to the first moving contact 21 to the second moving contact 31.
[0093] The elastic member 6 can be a spring sheet or a spring, which is not limited here and can be determined according to actual conditions.
[0094] In specific implementation, only one elastic member 6 can be arranged, which corresponds to multiple second moving contacts 31 and is used to apply a force close to the first moving contact 21 to the multiple second moving contacts 31. Of course, the number of the elastic member 6 can be the same as the number of the second moving contact 31. One elastic member 6 can correspond to one second moving contact 31, and one elastic member 6 is used to apply a force close to the first moving contact 21 to one second moving contact 31.
[0095] When the bearing frame 1 drives the first moving contact group 2 and the second moving contact group 3 to rotate relative to the shell, in the process of switching the first moving contact group 2 and the second moving contact group 3 from the separation position to the contact position, when the first moving contact 21 and the second moving contact 31 contact the static contact, the static contact enters between the first moving contact 21 and the second moving contact 31, so that the first moving contact 21 and the second moving contact 31 slide relative to the bearing frame 1 in the opposite direction along the third direction. The bearing frame 1 continues to drive the first moving contact group 2 and the second moving contact group 3 to rotate relative to the shell, until the first moving contact group 2 and the second moving contact group 3 are in the contact position, and the first moving contact group 2 and the second moving contact group 3 stably contact the static contact.
[0096] It can be understood that, due to the fixed arrangement of the static contact relative to the shell, during the switching of the first moving contact group 2 and the second moving contact group 3 from the disengaged position to the contact position, the first moving contact 21 and the second moving contact 31 can slide in the third direction relative to the carrier 1 in opposite directions, so as to match the position of the static contact of the first moving contact 21 and the second moving contact 31, and achieve good contact of the first moving contact 21 and the second moving contact 31 with the static contact.
[0097] When the static contact is located between the first moving contact 21 and the second moving contact 31, under the action of the elastic member 6, the second moving contact 31 has an action force close to the first moving contact 21, which is applied to the second moving contact 31, so that the second moving contact 31 has an action force close to the static contact, and the second moving contact 31 is in close contact with the static contact. Further, under the action of the elastic member 6, when the second moving contact 31 is close to the static contact, the static contact has an action force close to the first moving contact 21, so that the static contact is in close contact with the first moving contact 21, and thus the first moving contact 21 and the second moving contact 31 can be in close contact with the static contact.
[0098] In the embodiments provided in the present application, the number of the first moving contacts 21 is multiple, and the number of the first moving contacts in close contact with the static contact at one end of the first moving contact group 2 is multiple, which can increase the area of the first moving contact group 2 in contact with the static contact. At the same time, the number of the second moving contacts 31 is multiple, and the number of the second moving contacts in close contact with the static contact at one end of the second moving contact group 3 is multiple, which can increase the area of the second moving contact group 3 in contact with the static contact, ensure good contact of the first moving contact group 2 and the second moving contact group 3 with the static contact, and reduce the contact resistance.
[0099] In the prior art, in order to ensure good contact of the moving contact with the static contact, the cross-sectional area of the moving contact is generally increased, that is, the size of the moving contact in the first direction is increased. At this time, a larger space needs to be reserved in the shell for the moving contact, which increases the occupied space of the disconnecting device.
[0100] In the embodiments provided in the present application, the original moving contact can be divided into multiple moving contacts in the first direction without changing the size of the moving contact in the first direction, so as to form the first moving contact group 2 or the second moving contact group 3.
[0101] In this way, not only the occupied space of the moving contact is not increased, but also when the first moving contact group 2 and the second moving contact group 3 are in the contact position, multiple first moving contacts 21 can be ensured to be in contact with the static contact at the same time, and multiple second moving contacts 31 can be ensured to be in contact with the static contact at the same time, which increases the contact area and reduces the contact resistance.
[0102] Therefore, the moving contact structure provided by the embodiment of the application can ensure good contact between the moving contact and the stationary contact without increasing the occupied space and reducing the possibility of increasing the occupied space of the breaking device.
[0103] In addition, it should be noted that the elastic member 6 is arranged to be in close contact with the first moving contact 21 and the second moving contact 31 when the first moving contact group 2 and the second moving contact group 3 are in the disengaged position.
[0104] In order to facilitate the stationary contact to smoothly enter between the first moving contact 21 and the second moving contact 31, a chamfer can be arranged on the side of the first moving contact 21 and / or the second moving contact 31 for abutting against the stationary contact, so as to form an initial gap between the first moving contact 21 and the second moving contact 31 and guide the stationary contact.
[0105] Specifically, a chamfer can be formed between the two surfaces of the first moving contact 21 along the first direction and the surface of the first moving contact 21 close to the second moving contact 31, or a chamfer can be formed between the two surfaces of the second moving contact 31 along the first direction and the surface of the second moving contact 31 close to the first moving contact 21.
[0106] In this way, during the switching of the first moving contact group 2 and the second moving contact group 3 from the disengaged position to the contact position, the stationary contact first enters the gap, and then, as the carrier 1 continues to drive the first moving contact group 2 and the second moving contact group 3 to rotate relative to the housing, the stationary contact can separate the first moving contact 21 and the second moving contact 31 and enter between the first moving contact 21 and the second moving contact 31.
[0107] In the embodiments provided by the application, in combination with Figures 4 to 7 , Figure 1 , Figure 2 As shown in the drawings, a support column 5 is arranged on the surface of the first moving contact 21 facing the second moving contact 31 and / or the surface of the second moving contact 31 facing the first moving contact 21.
[0108] The arrangement of the support column 5 allows a gap between the first moving contact 21 and the second moving contact 31, so as to facilitate the stationary contact to smoothly enter between the first moving contact 21 and the second moving contact 31.
[0109] In specific implementation, the support column 5 can be arranged only on the first moving contact 21, one end of the support column 5 is fixedly arranged on the first moving contact 21, and the other end of the support column 5 supports the second moving contact 31 when the first moving contact group 2 and the second moving contact group 3 are in the disengaged position.
[0110] The support column 5 can also be arranged on the second moving contact 31, one end of the support column 5 is fixedly arranged on the second moving contact 31, and the other end of the support column 5 supports the first moving contact 21 when the first moving contact group 2 and the second moving contact group 3 are in the disengaged position.
[0111] Of course, the support column 5 can also be arranged on both the first moving contact 21 and the second moving contact 31. In addition, the support column 5 arranged on the first moving contact 21 and the support column 5 arranged on the second moving contact 31 can be arranged in a staggered manner.
[0112] At this time, when the first moving contact group 2 and the second moving contact group 3 are in the disengaged position, the other end of the support column 5 arranged on the first moving contact 21 can support the second moving contact 31, and the other end of the support column 5 arranged on the second moving contact 31 can support the first moving contact 21.
[0113] When the support column 5 is arranged on both the first moving contact 21 and the second moving contact 31, the support column 5 arranged on the first moving contact 21 and the support column 5 arranged on the second moving contact 31 can be arranged in a relative manner.
[0114] At this time, when the first moving contact group 2 and the second moving contact group 3 are in the disengaged position, the other end of the support column 5 arranged on the first moving contact 21 can support the other end of the support column 5 arranged on the second moving contact 31.
[0115] The number of support columns 5 is not limited here.
[0116] In addition, the arrangement position of the support column 5 is also not limited here, as long as a gap is ensured between the first moving contact 21 and the second moving contact 31 arranged in a relative manner, and the arrangement of the support column 5 does not interfere with the stationary contact.
[0117] When the support column 5 is arranged on the first moving contact 21, the support column 5 can be welded or threadedly connected to the first moving contact 21. Of course, the support column 5 can also be formed on the first moving contact 21 by stamping in an integrated manner.
[0118] Correspondingly, when the support column 5 is arranged on the second moving contact 31, the support column 5 can be welded or threadedly connected to the second moving contact 31. Of course, the support column 5 can also be formed on the second moving contact 31 by stamping in an integrated manner.
[0119] As a realizable manner, in combination with Figure 4 , Figure 5 , Figure 1 and Figure 2 , the limiting assembly 4 includes a first limiting frame 41, a second limiting frame 42, and a third limiting frame 43, and the first limiting frame 41 is arranged in a sliding manner along the third direction on the carrier frame 1.
[0120] The carrier frame 1 can limit the first limiting frame 41 in the third direction. In actual implementation, a guide structure that cooperates with each other can be arranged on the first limiting frame 41 and the carrier frame 1, and the guide structure can include a slider and a guide rail that cooperate with each other. Of course, the actual implementation is not limited to this.
[0121] The first limiting frame 41 is limited by the third limiting frame 43 on one side in the second direction, and is limited by the carrier frame 1 on the other side in the second direction.
[0122] In an example, the first limiting frame 41 has a first bearing surface, and the first moving contact 21 is limited by the first bearing surface.
[0123] In combination with Figure 7 , Figure 8 , Figure 7 and Figure 8 , it is shown that one of a first recess 211 and a first protrusion 4111 is arranged on the first bearing surface, and the other of the first recess 211 and the first protrusion 4111 is arranged on the first moving contact 21.
[0124] In this way, when the first moving contact 21 is arranged on the first bearing surface, the first recess 211 and the first protrusion 4111 cooperate to limit the position of the first moving contact 21 in the second direction and the third direction.
[0125] In actual implementation, as shown in Figure 1 and Figure 2 , the first protrusion 4111 can be arranged on the first bearing surface, and the first recess 211 can be arranged on the first moving contact 21. When the first limiting frame 41 slides relative to the carrier frame 1 in the third direction, the first moving contact 21 is driven to slide relative to the carrier frame 1 in the third direction.
[0126] The second limiting frame 42 is arranged on the carrier frame 1 to slide in the third direction.
[0127] The carrier frame 1 can limit the second limiting frame 42 in the third direction. In actual implementation, a guide structure that cooperates with each other can be arranged on the second limiting frame 42 and the carrier frame 1, and the guide structure can include a slider and a guide rail that cooperate with each other. Of course, the actual implementation is not limited to this.
[0128] The second limiting frame 42 is limited by the third limiting frame 43 on one side in the second direction, and is limited by the carrier frame 1 on the other side in the second direction.
[0129] In an example, the second limiting frame 42 has a second bearing surface, and the first bearing surface and the second bearing surface are arranged opposite to each other, and the second moving contact 31 is limited by the second bearing surface.
[0130] In combination Figure 6 , Figure 9 , Figure 6 and Figure 9 , the second bearing surface is provided with one of a second recess 311 and a second protrusion 4211, and the second movable contact 31 is provided with the other of the second recess 311 and the second protrusion 4211.
[0131] In this way, when the second movable contact 31 is arranged on the second bearing surface, the second recess 311 and the second protrusion 4211 cooperate to limit the position of the second movable contact 31 in the second direction and the third direction.
[0132] In particular embodiments, as shown in Figure 2 and Figure 8 , the second protrusion 4211 can be arranged on the second bearing surface, and the second recess 311 can be arranged on the second movable contact 31. When the second limiting frame 42 slides relative to the bearing frame 1 along the third direction, the second movable contact 31 is simultaneously driven to slide relative to the bearing frame 1 along the third direction.
[0133] In actual cases, the two ends of the elastic member 6 elastically act on the first limiting frame 41 and the second limiting frame 42, respectively, to apply a force on the second limiting frame 42 to approach the first limiting frame 41 in the third direction. In this way, a force can be applied on the second movable contact 31 to approach the first movable contact 21.
[0134] In some embodiments, as shown in Figure 2 and Figure 9 , the first limiting frame 41 includes a first bearing portion 411, a first limiting portion 412, and a first supporting portion 413 connected together.
[0135] In particular embodiments, the first bearing portion 411, the first limiting portion 412, and the first supporting portion 413 can all be plate-shaped structures.
[0136] The first bearing portion 411, the first limiting portion 412, and the first supporting portion 413 can be connected together by welding, clamping, or the like.
[0137] Of course, the first limiting frame 41 can also be processed and formed by one-time bending.
[0138] In this way, the first limiting frame 41 is convenient to process and form, and at the same time, the structural strength of the first limiting frame 41 can be improved.
[0139] The first bearing part 411, the first limiting part 412 and the first supporting part 413 form a first U-shaped space, the second limiting frame 42 is arranged in the first U-shaped space, and one side of the first bearing part 411 close to the first supporting part 413 is a first bearing surface. One end of the elastic member 6 elastically acts on the first supporting part 413.
[0140] In specific implementation, the first limiting frame 41 is at least partially located in the cavity 11, and two sides of the first limiting frame 41 along the first direction are limited on the cavity side wall. One side of the first bearing part 411 away from the first moving contact 21 is limited on the cavity bottom wall. One side of the first supporting part 413 away from the first moving contact 21 can be limited on one end of the elastic member 6 or the cavity top wall.
[0141] One side of the first limiting part 412 along the second direction is limited on the third limiting frame 43, and the other side of the first limiting part 412 along the second direction is limited on the bearing frame 1, so as to limit the first limiting frame 41 on the bearing frame 1.
[0142] In an example, in combination with Figure 10 , Figure 10 and Figure 5 , the second limiting frame 42 comprises a second bearing part 421 and a second limiting part 422 connected with each other, and the second bearing part 421 and the second limiting part 422 form an L-shaped structure. One side of the second bearing part 421 close to the second moving contact group 3 is a second bearing surface.
[0143] In specific implementation, the second bearing part 421 and the second limiting part 422 can each be a plate-shaped structure.
[0144] The second bearing part 421 and the second limiting part 422 can be connected together by welding, clamping or the like.
[0145] Of course, the second limiting frame 42 can also be processed and formed in a one-time bending forming mode.
[0146] In this way, the processing and forming of the second limiting frame 42 are facilitated, and meanwhile, the structural strength of the second limiting frame 42 can be improved.
[0147] The second limiting part 422 and the first limiting part 412 are respectively arranged on two sides of the first moving contact group 2 along the first direction. The other end of the elastic member 6 elastically acts on the second bearing part 421. One side of the second limiting part 422 along the second direction is limited on the third limiting frame 43, and the other side of the second limiting part 422 along the second direction is limited on the bearing frame 1.
[0148] As an example, as shown in Figure 8 , one side of the second bearing part 421 away from the second limiting part 422 is provided with two first extension parts 423 arranged oppositely, in combination with Figure 10 ,Figure 2 and Figure 1 Two first extension parts 423 are used for limiting contact with two sides of the first limiting part 412 along the second direction.
[0149] In this way, the stability of the interaction relationship between the first limiting frame 41 and the second limiting frame 42 is improved, and the structural integrity of the movable contact structure provided by the embodiment of the application is improved.
[0150] In a possible implementation, the carrier frame 1 has two clamping surfaces 12 arranged oppositely and sequentially along the first direction.
[0151] Referring to Figure 2 , the third limiting frame 43 includes a connecting part 431 and two oppositely arranged clamping parts 432, and the two clamping parts 432 are respectively located on two sides of the connecting part 431 along the first direction. The connecting part 431 and the clamping part 432 surround to form a second U-shaped space.
[0152] In specific implementation, the connecting part 431 and the clamping part 432 can each be a plate structure.
[0153] The connecting part 431 and the clamping part 432 can be connected together by welding, clamping or the like.
[0154] Of course, the third limiting frame 43 can also be processed and formed in a one-time bending forming manner.
[0155] In this way, the processing and forming of the third limiting frame 43 are facilitated, and the structural strength of the third limiting frame 43 is improved.
[0156] The first limiting part 412 and the second limiting part 422 are each located on one side of the connecting part 431 close to the clamping part 432 along the second direction.
[0157] The connecting part 431 is provided with a through hole 4311 in communication with the cavity 11, and one end of the first movable contact group 2 and the second movable contact group 3 along the second direction sequentially passes through the through hole 4311 and the cavity 11.
[0158] The distance between the two clamping parts 432 is less than the distance between the two clamping surfaces 12, and the two clamping parts 432 can be clamped on the clamping surface 12, so as to clamp the third limiting frame 43 on the carrier frame 1, thereby enabling the third limiting frame 43 to be installed on the carrier frame 1.
[0159] In specific implementation, one side of the first limiting part 412 along the second direction is located on the connecting part 431, and the other side of the first limiting part 412 along the second direction is located on the carrier frame 1.
[0160] Specifically, in combination with Figure 3 ,Figure 1 and Figure 2 The other side of the first limiting portion 412 in the second direction is limited on the limiting cavity wall 15 of the cavity 11 away from the connecting portion 431, so that the position of the first limiting frame 41 in the second direction is limited.
[0161] Similarly, one side of the second limiting portion 422 in the second direction is limited on the connecting portion 431, and the other side of the second limiting portion 422 in the second direction is limited on the carrier frame 1.
[0162] Specifically, in combination with Figure 3 , Figure 2 and Figure 2 The other side of the second limiting portion 422 in the second direction is limited on the limiting cavity wall 15 of the cavity 11 away from the connecting portion 431, so that the position of the second limiting frame 42 in the second direction is limited.
[0163] In actual cases, the elastic member 6 is a spring sheet as shown in Figures 1 to 3 . Taking the placement orientation shown in Figure 1 as an example, the structure of the elastic member 6 is M-shaped, one end of the elastic member 6 is in elastic contact with the side of the first supporting portion 413 close to the first moving contact 21, and the other end of the elastic member 6 is in elastic contact with the side of the second limiting portion 422 away from the first stationary contact.
[0164] In specific implementation, the connecting portion 431 is provided with a second extending portion 433, the second extending portion 433 is arranged on the side of the connecting portion 431 close to the elastic member 6, and the second extending portion 433 extends from the connecting portion 431 along the second direction. The second extending portion 433 is located on the side of the connecting portion 431 provided with the clamping portion 432.
[0165] The side of the second extending portion 433 close to the first moving contact 21 is used to contact the second limiting portion 422 to limit the movement distance of the second limiting frame 42 in the third direction.
[0166] The first supporting portion 413 can limit the position of the elastic member 6 in the second direction. At the same time, the top of the M-shaped elastic member 6 can be limited on the top of the through hole 4311 to prevent the elastic member 6 from being misaligned.
[0167] In one possible way, one of the third protruding portion 13 and the third recessed portion corresponding to each other is arranged on the clamping portion 432 corresponding to the clamping face 12, and the other one of the third protruding portion 13 and the third recessed portion is arranged on the clamping face 12.
[0168] Therefore, when the third limiting frame 43 is arranged on the bearing frame 1, the third protruding portion 13 and the third recessed portion are matched, the position of the third limiting frame 43 on the bearing frame 1 is limited, and the firmness of the third limiting frame 43 installed on the bearing frame 1 is enhanced.
[0169] In specific implementation, the third protruding portion can be arranged on the clamping surface 12, and the third recessed portion can be arranged on the clamping portion 432.
[0170] In the embodiments provided in the present application, as shown in Figure 3 the third protruding portion 13 is arranged on the clamping surface 12, and the clamping groove 4321 matched with the third protruding portion 13 is arranged on the clamping portion 432.
[0171] In some embodiments, as shown in and the fourth protruding portion 14 is arranged on both ends of the bearing frame 1 along the third direction, and the fourth protruding portion 14 extends along the circumferential direction of the rotation axis of the bearing frame 1.
[0172] At this time, when the bearing frame 1 contacts the shell, the fourth protruding portion 14 contacts the shell, the contact area is small, the friction is small, the frictional resistance is reduced, and the rotation of the bearing frame 1 relative to the shell is facilitated.
Claims
1. A moving contact structure, characterized by, The utility model relates to a connector, including: A bearing frame has a cavity through it; A first moving contact group includes a plurality of first moving contacts arranged in a first direction; one end of the first moving contact in a second direction passes through the cavity; the first moving contact is slidingly arranged in the bearing frame along a third direction; two adjacent first moving contacts are electrically connected; the first direction, the second direction and the third direction are perpendicular to each other; A second moving contact group is arranged opposite to the first moving contact group; the second moving contact group includes a plurality of second moving contacts arranged in the first direction; one end of the second moving contact in the second direction passes through the cavity; the second moving contact is slidingly arranged in the bearing frame along the third direction; two adjacent second moving contacts are electrically connected; A limiting component is arranged in the bearing frame; the limiting component cooperates with the bearing frame to limit the first moving contact group and the second moving contact group on the bearing frame; An elastic member is used to apply a force to the second moving contact to make it close to the first moving contact.
2. The movable contact structure according to claim 1, characterized in that One side of the first moving contact facing the second moving contact and / or one side of the second moving contact facing the first moving contact is provided with a support column.
3. The movable contact structure according to claim 1, characterized in that The limiting component includes: A first limiting frame is slidingly arranged in the bearing frame along the third direction; the first limiting frame has a first bearing surface, and the first moving contact is limited on the first bearing surface; one of a first recess and a first protrusion is arranged on the first bearing surface; the other of the first recess and the first protrusion is arranged on the first moving contact; A second limiting frame is slidingly arranged in the bearing frame along the third direction; the second limiting frame has a second bearing surface opposite to the first bearing surface; the second moving contact is limited on the second bearing surface; one of a second recess and a second protrusion is arranged on the second bearing surface; the other of the second recess and the second protrusion is arranged on the second moving contact; both ends of the elastic member elastically act on the first limiting frame and the second limiting frame respectively, to apply a force to the second limiting frame in the third direction to make it close to the first limiting frame; A third limiting frame is clamped with the bearing frame; one side of the first limiting frame in the second direction is limited on the third limiting frame, and the other side of the first limiting frame in the second direction is limited on the bearing frame; one side of the second limiting frame in the second direction is limited on the third limiting frame, and the other side of the second limiting frame in the second direction is limited on the bearing frame.
4. The moving contact structure according to claim 3, characterized in that The first limiting frame includes a first bearing part, a first limiting part and a first support part connected with each other, and the first bearing part, the first limiting part and the first support part form a first U-shaped space; the second limiting frame is arranged in the first U-shaped space; one side of the first bearing part close to the first support part is the first bearing surface; one end of the elastic member elastically acts on the first support part; One side of the first limiting part along the second direction is limited by the third limiting frame, and the other side of the first limiting part along the second direction is limited by the bearing frame.
5. The moving contact structure according to claim 4, characterized in that The second limiting frame comprises a second bearing part and a second limiting part connected with each other, and the second bearing part and the second limiting part form an L-shaped structure; one side of the second bearing part close to the second moving contact group is the second bearing surface; the second limiting part and the first limiting part are respectively arranged on two sides of the first moving contact group along the first direction; the other end of the elastic member elastically acts on the second bearing part; One side of the second limiting part along the second direction is limited by the third limiting frame, and the other side of the second limiting part along the second direction is limited by the bearing frame.
6. The moving contact structure according to claim 5, characterized in that The second bearing part is provided with two first extension parts arranged oppositely on the side away from the second limiting part, and the two first extension parts are used for limiting contact with two sides of the first limiting part along the second direction.
7. The moving contact structure of claim 5, wherein The bearing frame is provided with two clamping surfaces arranged oppositely and arranged in sequence along the first direction; The third limiting frame comprises a connecting part and two clamping parts arranged oppositely, and the two clamping parts are respectively located on two sides of the connecting part along the first direction; the connecting part and the clamping part surround to form a second U-shaped space; one side of the first limiting part and one side of the second limiting part along the second direction are both limited on the side of the connecting part close to the clamping part; The connecting part is provided with a through hole in communication with the cavity, and one end of the first moving contact group and one end of the second moving contact group along the second direction both pass through the through hole and the cavity in sequence; The distance between the two clamping parts is less than the distance between the two clamping surfaces, so that the third limiting frame is clamped on the bearing frame.
8. The moving contact structure according to claim 7, characterized in that One of a third protruding part and a third recessed part corresponding to each other is arranged on at least one of the clamping surfaces, and the other of the third protruding part and the third recessed part is arranged on the clamping part corresponding to the clamping surface.
9. The moving contact structure of claim 3, wherein The bearing frame is provided with a fourth protruding part at two ends along the third direction, and the fourth protruding part extends along the circumferential direction of the rotation axis of the bearing frame.
10. A disconnecting device, characterized in that The dynamic contact structure comprises: The dynamic contact structure according to any one of claims 1 to 9; The shell, wherein the dynamic contact structure is arranged to rotate in the shell; The static contact is arranged in the shell and used for contacting the first moving contact group and the second moving contact group comprised in the dynamic contact structure.