Moving contact support and isolating switch

Abstract

The utility model relates to the technical field of electrical connection devices, in particular to a moving contact support and an isolating switch. The moving contact support provided by the utility model comprises a support body, and the support body is provided with a first mounting hole. The first mounting hole penetrates through the support body in the first direction. In the second direction, the first mounting hole comprises a first side wall and a second side wall which are opposite, and at least one of the first side wall and the second side wall is further provided with a movement guide column. In the disconnecting switch using the moving contact support provided in the first aspect, the moving contact plate is provided with a guide gap matched with the motion guide column, and the moving contact plate is installed between the first side wall and the second side wall through the guide gap. Therefore, the stability of the relative positions of the moving contact and the static contact in the first direction and the second direction can be improved, and the contact reliability of the static contact and the moving contact is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical connection devices, in particular to a moving contact support and an isolating switch. BACKGROUND

[0002] The isolating switch is a kind of switch electrical apparatus that meets the isolation function requirements in the off state and has the ability to carry short-time short-circuit current. The domestic common isolating switch adopts the contact bridge contact form, and through the linkage of the handle and the moving contact support, the contact bridge is driven to move up and down linearly, so as to realize the opening and closing operation of the isolating switch.

[0003] However, the common isolating switch has some deficiencies: the contact between the moving contact and the static contact is prone to deflection, resulting in poor contact. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a moving contact support and an isolating switch, aiming to solve the deflection of the contact between the moving contact and the static contact, and improve the contact reliability of the moving contact and the static contact when the isolating switch is closed.

[0005] The technical solution of the present application is as follows:

[0006] In a first aspect, the present application provides a moving contact support, which comprises a support body, and a first mounting hole is formed in the support body.

[0007] In the first direction, the first mounting hole penetrates the support body.

[0008] In the second direction, the first mounting hole comprises opposite first and second side walls, and at least one of the first and second side walls is further provided with a movement guide column. The moving contact can be installed between the first and second side walls and cooperates with the movement guide column. The movement guide column is used for position guiding the relative movement of the moving contact in the third direction.

[0009] The first, second and third directions are perpendicular to each other.

[0010] In a second aspect, based on the same inventive concept, the present application further provides an isolating switch, which comprises an operating mechanism, a moving contact assembly and a static contact.

[0011] The moving contact assembly comprises a moving contact support, an elastic member and a moving contact.

[0012] The moving contact support is the moving contact support described above, and the moving contact support can be linked with the operating mechanism.

[0013] The moving contact head comprises a moving contact plate, the moving contact plate is provided with a guide notch matched with the movement guide column, and the moving contact plate is installed between the first side wall and the second side wall through the guide notch. The elastic member is installed on the moving contact head support and is in contact with the moving contact plate.

[0014] In the later stage of closing of the disconnector, the moving contact head support continues to move relative to the moving contact head in the third direction and compresses the elastic member, so that the elastic member applies an action force to the moving contact head, which is beneficial to the contact between the moving contact head and the static contact.

[0015] Based on the moving contact head provided in the first aspect, the first mounting hole comprises opposite first and second side walls, at least one of the first and second side walls is provided with a movement guide column, and the movement guide column is used for position guidance of relative movement of the moving contact head in the third direction.

[0016] In the disconnector using the moving contact head provided in the first aspect, the moving contact plate is provided with a guide notch matched with the movement guide column, and the moving contact plate is installed between the first side wall and the second side wall through the guide notch. In this way, in the later stage of closing of the disconnector, when the moving contact head support continues to move relative to the moving contact head in the third direction, the moving contact head is not easy to be deflected in the first direction or the second direction under the guidance of the movement guide column, so that the stability of the relative position of the moving contact head and the static contact in the first direction and the second direction can be improved, and the contact reliability of the static contact and the moving contact head is improved.

[0017] In a possible design, a second mounting hole is further formed in the support body.

[0018] The second mounting hole is arranged at one end of the support body and penetrates the first mounting hole, is used for mounting the compression spring, and the compression spring can be in contact with the moving contact head.

[0019] Based on the moving contact head provided in the embodiment, the second mounting hole is arranged at one end of the support body and penetrates the first mounting hole, so that the compression spring can be conveniently mounted.

[0020] In a possible design, the elastic member is a compression spring, the compression spring is arranged at the second mounting hole, and one end of the compression spring is in contact with the moving contact plate.

[0021] Based on the disconnector provided in the embodiment, the elastic member is a compression spring, and compared with a spring sheet, the compression spring is not easy to have deflection problem in compression deformation, so that the contact reliability of the moving contact head and the static contact can be further improved based on the disconnector provided in the embodiment.

[0022] In a possible design, the second mounting hole is a cylindrical hole or a square hole.

[0023] Based on the movable contact support provided in the embodiment, the cylindrical hole or the square hole can block the spring from being deflected during deformation, thereby helping the movable contact plate to keep balance and further improving the contact reliability of the movable contact and the static contact.

[0024] In a possible design, a third mounting hole is further arranged on the support body, and the third mounting hole is used to mount a connecting rod of an operating mechanism, so that the support body is linked with the operating mechanism.

[0025] Based on the movable contact support provided in the embodiment, the third mounting hole can be connected with the connecting rod of the operating mechanism more conveniently.

[0026] When the movable contact support provided in the embodiment is used in a disconnecting switch, the operating structure of the disconnecting switch includes a rotating member and a connecting rod, and the rotating member is rotationally connected with a housing of the disconnecting switch. One end of the connecting rod is hingedly connected with the rotating member, and the other end of the connecting rod is hingedly connected with the third mounting hole, so that the support body is linked with the rotating member through the connecting rod.

[0027] Based on the disconnecting switch provided in the embodiment, the rotating member and the support body are connected through the connecting rod, so that a connecting rod structure is formed, the connecting rod structure has a mechanism dead point, and the contact between the movable contact and the static contact is more reliable in the closed state of the disconnecting switch and is not easy to be disconnected under the action of an interference force.

[0028] In a possible design, along the second direction, the third mounting hole penetrates the second mounting hole along one side of the second mounting hole.

[0029] Along the third direction, the third mounting hole is located at one end of the second mounting hole away from the first mounting hole.

[0030] When the movable contact support provided in the embodiment is used in a disconnecting switch, the connecting rod inserted into the third mounting hole limits the end of the spring away from the movable contact.

[0031] In the related art, a corresponding limiting block is arranged at the end of the elastic member away from the movable contact plate, the limiting block is fixedly connected with the support body, and the end of the elastic member away from the movable contact plate is limited by the limiting block.

[0032] The disconnecting switch using the movable contact support limits the end of the elastic member away from the movable contact plate by the connecting rod inserted into the third mounting hole, which is ingenious and convenient for simplifying the structure of the movable contact assembly.

[0033] In a possible design, the support body is further provided with a convex arc surface facilitating sliding of the support body.

[0034] The isolator using the movable contact bracket, since the bracket body is provided with the convex arc surface facilitating the sliding of the bracket body, the cooperation position of the bracket body and the shell is linear contact, the cooperation structure not only can reduce the abrasion during the sliding of the bracket body, and the bracket body and the shell are not easy to be stuck. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 A front view of the movable contact bracket provided by the embodiment of the present application.

[0036] Figure 2 A front view of the movable contact bracket provided by the embodiment of the present application. Figure 1 An isometric view of the movable contact bracket.

[0037] Figure 3 A structure schematic view of the isolator in the open state provided by the embodiment of the present application.

[0038] Figure 4 A structure schematic view of the isolator in the closed state provided by the embodiment of the present application.

[0039] Figure 5 A three-dimensional structure schematic view of the movable contact provided by the embodiment of the present application.

[0040] Figure 6 A three-dimensional schematic view of the assembly structure of the movable contact bracket, the movable contact and the elastic member provided by the embodiment of the present application.

[0041] Figure 7 A top view of the isolator. Figure 6

[0042] Figure 8 An A-A sectional view of the isolator. Figure 7

[0043] Wherein the reference signs are:

[0044] 1, shell; 11, first half shell; 111, sliding channel;

[0045] 2, operating mechanism; 21, rotating piece; 22, connecting rod;

[0046] 3, movable contact bracket; 31, bracket body; 31A, first convex arc surface; 31B, second convex arc surface; 31C, third convex arc surface; 31D, fourth convex arc surface; 32, first mounting hole; 321, first side wall; 322, second side wall; 323, movement guide column; 33, second mounting hole; 34, third mounting hole;

[0047] 4, movable contact; 41, movable contact plate; 411, guide notch; 42, movable contact point;

[0048] ​​5, elastic member;

[0049] 6, stationary contact; 61, stationary contact point;

[0050] 8, return spring;

[0051] D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION

[0052] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of 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 but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0053] 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 of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The description and claims of the application as well as the appended drawings herein use the terms "comprising", "comprises" and "having" and their variations thereof to mean "including but not limited to".

[0054] Reference herein to "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 "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. It is expressly understood that the embodiments described herein are merely examples from a whole class of comparable embodiments which those of ordinary skill in the art refer to as equivalents.

[0055] In addition, the terms "first", "second", and the like in the description and claims of this application or the above drawings are used to distinguish different objects, and are not used to describe a particular order, and can explicitly or implicitly include one or more of the features.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by spacers, screws, bolts, or other spacers. A physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] The present application will be described in detail below with reference to the accompanying drawings.

[0058] Figure 1 This is a front view of a moving contact bracket provided in an embodiment of this application. Figure 2 for Figure 1 The isometric view of the moving contact bracket shown.

[0059] Please combine Figure 1 and Figure 2 The movable contact bracket 3 provided in this application includes a bracket body 31, on which a first mounting hole 32 is provided. Along a first direction D1, the first mounting hole 32 penetrates the bracket body 31. Along a second direction D2, the first mounting hole 32 includes a first sidewall 321 and a second sidewall 322, each of which is further provided with a motion guide post 323. The movable contact 4 can be installed between the first sidewall 321 and the second sidewall 322 and cooperates with the motion guide post 323. The motion guide post 323 is used to guide the relative movement of the movable contact 4 in a third direction D3. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0060] Based on the same inventive concept, this application also provides a disconnecting switch using the aforementioned moving contact bracket 3. Figure 3 The diagram shown is a structural schematic of a disconnecting switch in the open state according to an embodiment of this application. Figure 4 The diagram shown is a schematic representation of the disconnecting switch provided in the embodiment of this application in the closed state. Figure 5 The figure shown is a three-dimensional structural diagram of a moving contact provided in an embodiment of this application.

[0061] Please refer to Figure 3 and Figure 4 The disconnect switch provided in this application includes an operating mechanism 2, a moving contact assembly, and a stationary contact 6. The moving contact assembly includes a moving contact support 3, an elastic element 5, and a moving contact 4.

[0062] Please combineFigure 1 、 Figure 2 、 Figure 3 and Figure 4 The moving contact support 3 comprises a support body 31, and a first mounting hole 32 is formed in the support body 31. In the first direction D1, the first mounting hole 32 penetrates the support body 31. In the second direction D2, the first mounting hole 32 comprises opposite first and second side walls 321 and 322, and at least one of the first and second side walls 321 and 322 is provided with a movement guide column 323. The movement guide column 323 is used for position guidance of relative movement of the moving contact 4 in the third direction D3. The first, second and third directions D1, D2 and D3 are perpendicular to each other. The moving contact support 3 can be linked with the operating mechanism 2.

[0063] Please refer to Figure 1 、 Figure 2 and Figure 5 The moving contact 4 comprises a moving contact plate 41, and the moving contact plate 41 is provided with a guide notch 411 matched with the movement guide column 323, and the moving contact plate 41 is mounted between the first and second side walls 321 and 322 through the guide notch 411.

[0064] Please refer to Figure 3 and Figure 4 The elastic member 5 is mounted on the moving contact support 3 and in contact with the moving contact plate 41. The stationary contact 6 is located on the moving path of the moving contact 4 and is arranged opposite to the moving contact 4.

[0065] Please refer to Figure 3 and Figure 4 In the later stage of closing of the disconnector, the moving contact support 3 continues to move relative to the moving contact 4 in the third direction D3 and compresses the elastic member 5, so that the elastic member 5 exerts a force on the moving contact 4 which is conducive to contact between the moving contact 4 and the stationary contact 6.

[0066] Specifically, please continue to refer to Figure 3 and Figure 4 In the present application, in addition to the operating mechanism 2, the moving contact assembly and the stationary contact 6, the disconnector further comprises a housing 1 which serves as an outer shell of the overall structure and mainly provides physical protection and mounting support for the internal components. The operating mechanism 2 comprises a rotating member 21, a part of which is located in the housing 1 and is rotationally connected with the housing 1, and another part of which is located outside the housing 1 for easy operation. By operating the part of the rotating member 21 outside the housing 1, the user can conveniently perform the closing or opening operation of the disconnector.

[0067] The moving contact assembly is installed in the shell 1, and the moving contact assembly comprises a moving contact support 3, an elastic element 5 and a moving contact 4. The shell 1 is provided with a sliding channel 111 for linear reciprocating movement of the moving contact 4, and the moving contact support 3 is in sliding connection with the shell 1. The moving contact support 3 can be driven by the rotating member 21 to move linearly reciprocally relative to the shell 1 along the third direction D3, so as to realize contact and separation of the moving contact 4 and the static contact 6.

[0068] Please refer to Figure 3 , Figure 4 and Figure 5 , the moving contact 4 in the disconnector usually adopts the form of a contact bridge, and the moving contact 4 comprises a moving contact plate 41, and two moving contact points 42 are arranged at two ends of the moving contact plate 41. Correspondingly, the static contact 6 is provided with two corresponding static contact points 61. The elastic element 5 is installed by the moving contact support 3, and the moving contact support 3 cooperates to provide a holding force for the contact between the moving contact 4 and the static contact 6.

[0069] Please continue to refer to Figure 3 and Figure 4 , the closing process of the disconnector provided in the present application: in the initial stage of closing of the disconnector, the rotating member 21 rotates to drive the moving contact support 3 to move linearly towards the static contact 6, and the elastic element 5 and the moving contact 4 will move linearly towards the static contact 6 along with the moving contact support 3, so that the moving contact 4 and the static contact 6 are in contact. After the moving contact 4 and the static contact 6 are in contact, the moving contact 4 stops moving, and the moving contact support 3 continues to move, and the elastic element 5 will be compressed by the moving contact support 3, and the restoring force will be applied to the moving contact 4, thereby providing a holding force for the contact between the moving contact 4 and the static contact 6.

[0070] In the related art, due to the cooperation problem of the moving contact support, the elastic element and the moving contact, in the later stage of closing of the disconnector, the relative position of the moving contact does not change, the moving contact support continues to move and compresses the elastic element, and in this process, the force of the elastic element on the moving contact plate is prone to deflection, which causes the moving contact plate to tilt, and further causes the moving contact points at both ends of the moving contact plate to be unevenly stressed, thereby causing the problem of unreliable contact.

[0071] The present application can improve the contact reliability of the moving contact 4 and the static contact 6 by improving the structure of the moving contact support 3. Specifically, in the later stage of closing of the disconnector, when the moving contact support 3 continues to move relative to the moving contact 4 along the third direction D3, the moving contact 4 is less likely to tilt towards the first direction D1 or the second direction D2 under the guidance of the movement guide column 323, so that the stability of the relative position of the moving contact 4 and the static contact 6 in the first direction D1 and the second direction D2 can be improved, and further the contact reliability of the static contact 6 and the moving contact 4 is improved.

[0072] It can be understood that in the present application, due to the arrangement of the movement guide column 323 at the first mounting hole 32, even in the later stage of closing of the disconnector, the uneven force exerted by the elastic member 5 on the moving contact 42 on both sides of the moving contact 4 can be alleviated by the movement guide column 323, thereby improving the contact reliability of the moving contact 4 and the stationary contact 6.

[0073] It can be understood that in some embodiments of the present application, only the first side wall 321 is provided with the movement guide column 323. In some other embodiments of the present application, both the first side wall 321 and the second side wall 322 are provided with the movement guide column 323.

[0074] It can be understood that in some embodiments of the present application, when the movement guide column 323 is cut using a plane parallel to the first direction D1 and the second direction D2, the cross section of the movement guide column 323 is rectangular, so that the movement guide column 323 can better limit the position of the moving contact 4 in the first direction D1 and the second direction D2.

[0075] It can also be understood that in some embodiments of the present application, when the movement guide column 323 is cut using a plane parallel to the first direction D1 and the second direction D2, the cross section of the movement guide column 323 can also be other shapes, such as T-shaped, dovetail-shaped or other shapes.

[0076] It can also be understood that in the present application, the size of the movement guide column 323 in the third direction D3 needs to meet the installation of the moving contact 4 and the movement stroke of the moving contact support 3 relative to the moving contact 4 in the third direction D3.

[0077] It can also be understood that in the present application, the "later stage of closing of the disconnector" refers to the stage in which the moving contact support 3 continues to move, compresses the elastic member 5, and provides contact holding force to the moving contact 4 and the stationary contact 6 after the moving contact 4 contacts the stationary contact 6.

[0078] Figure 6 Fig. 1 shows a perspective view of an assembled structure of a moving contact support, a moving contact and an elastic member according to an embodiment of the present application, Figure 7 Fig. 2 shows a top view of the assembled structure of the moving contact support, the moving contact and the elastic member of Figure 6 Fig. 3 shows an A-A cross-sectional view of the assembled structure of the moving contact support, the moving contact and the elastic member of Figure 8 Fig. 4 shows a B-B cross-sectional view of the assembled structure of the moving contact support, the moving contact and the elastic member of Figure 7 Fig. 5 shows a C-C cross-sectional view of the assembled structure of the moving contact support, the moving contact and the elastic member of

[0079] Please refer to Figure 6 , Figure 7 and Figure 8In some embodiments of the moving contact support provided in the present application, a second mounting hole 33 is further formed in the support body 31. The second mounting hole 33 is arranged at one end of the support body 31 and penetrates the first mounting hole 32, and is used for mounting the compression spring, and the compression spring can contact the moving contact 4.

[0080] Correspondingly, please refer to Figure 3 and Figure 4 In the disconnecting switch using the moving contact support 3, the elastic member 5 is a compression spring. The compression spring is arranged at the second mounting hole 33, and one end of the compression spring contacts the moving contact plate 41.

[0081] In this embodiment, the second mounting hole 33 is used for arranging the compression spring, and the second mounting hole 33 is located at one end of the support body 31 and penetrates the first mounting hole 32. In this way, the compression spring can be mounted from one end of the support body 31, and the end of the compression spring can abut against the moving contact plate 41, so as to facilitate the cooperation between the compression spring and the moving contact plate 41.

[0082] In addition, in the related art, the elastic member of the disconnecting switch adopts a spring sheet. In the later stage of closing of the disconnecting switch, the compression deformation of the spring sheet is prone to deflection, which further causes the contact deflection between the moving contact and the static contact, and increases the risk of poor contact between the moving contact and the static contact 6.

[0083] In the disconnecting switch provided in the present application, the elastic member 5 adopts a compression spring. Compared with the spring sheet, the compression deformation of the compression spring is not prone to deflection. Therefore, based on the disconnecting switch provided in the embodiment, the contact reliability between the moving contact 4 and the static contact 6 can be further improved.

[0084] Please continue to refer to Figure 6 , Figure 7 and Figure 8 In some embodiments of the present application, the second mounting hole 33 is a cylindrical hole or a square hole, which is used to avoid the deflection of the compression spring during the deformation process.

[0085] Specifically, please refer to Figure 3 and Figure 4 and Figure 6 Although the structure of the compression spring itself makes it difficult to produce deflection in compression deformation. However, when the disconnecting switch is working, the force received by the moving contact support 3 includes not only the component force along the third direction D3, but also the component force in other directions. Therefore, the force acting on the elastic member 5 by the moving contact support 3 also includes not only the component force along the third direction D3, but also the component force in other directions. The cylindrical hole or the square hole can block the deflection of the compression spring under the action of the component force in other directions, so as to help maintain the balance of the moving contact plate 41, and further improve the contact reliability between the moving contact 4 and the static contact 6.

[0086] Please refer to Figure 3 ,Figure 4 and Figure 6 In some embodiments of the present application, the bracket body 31 is further provided with a third mounting hole 34, the third mounting hole 34 is used for mounting the connecting rod 22 of the operating mechanism 2, and the bracket body 31 is linked with the operating mechanism 2 through the connecting rod 22.

[0087] When the moving contact bracket 3 is used for the disconnecting switch, one end of the connecting rod 22 is hinged with the rotating piece 21, the other end of the connecting rod 22 is hinged with the third mounting hole 34, and the bracket body 31 is linked with the rotating piece 21 through the connecting rod 22.

[0088] In the related art, the operating mechanism of the disconnecting switch includes a rotating piece, but does not include a connecting rod, and when the disconnecting switch is closed, the bracket body is directly driven through the rotating piece. The disadvantage of this structure is that the mechanism has no dead point, and the contact between the moving contact and the static contact is unreliable under external interference.

[0089] Please refer to Figure 3 and Figure 4 In some embodiments of the present application, the rotating piece 21 is connected with the bracket body 31 through the connecting rod 22, so that a connecting rod mechanism is formed by the housing 1, the rotating piece 21, the connecting rod 22 and the bracket body 31. Since the connecting rod mechanism has a clear mechanism dead point, the contact between the moving contact 4 and the static contact 6 is more reliable when the disconnecting switch is closed, and is not easy to be disconnected under the action of interference force.

[0090] Please continue to refer to Figure 3 , Figure 4 and Figure 6 In some embodiments of the present application, along the second direction D2, the third mounting hole 34 penetrates the second mounting hole 33 along one side of the second mounting hole 33. Along the third direction D3, the third mounting hole 34 is located at one end of the second mounting hole 33 away from the first mounting hole 32. The connecting rod 22 inserted into the third mounting hole 34 can limit the end of the compression spring away from the moving contact 4.

[0091] Specifically, as described above, the second mounting hole 33 is used for mounting the elastic piece 5, one end of the elastic piece 5 is in contact with the moving contact plate 41, and in the later stage of closing of the disconnecting switch, the bracket body 31 will compress the elastic piece 5, so that it is necessary to limit the end of the elastic piece 5 away from the moving contact plate 41.

[0092] In the related art, a corresponding limiting block is arranged at the end of the elastic piece 5 away from the moving contact plate 41, the limiting block is fixedly connected with the bracket body 31, and the end of the elastic piece 5 away from the moving contact plate 41 is limited by the limiting block.

[0093] In the embodiments provided in the present application, the elastic member 5 is limited by the connecting rod 22 inserted into the third mounting hole 34 from the end away from the moving contact plate 41, so that the limiting block is not needed, and the structure of the moving contact assembly is simplified.

[0094] Please refer to Figure 2 、 Figure 6 and Figure 8 In some embodiments of the present application, the third mounting hole 34 penetrates the second mounting hole 33, and the connecting rod 22 can be inserted from one side hole wall of the second mounting hole 33 to the other side hole wall of the second mounting hole 33. In this way, the connection between the connecting rod 22 and the bracket body 31 is more stable, and the connecting rod 22 can better limit the elastic member 5.

[0095] Please continue to refer to Figure 1 and Figure 2 In some embodiments of the present application, the bracket body 31 is further provided with a convex arc surface facilitating the sliding of the bracket body 31.

[0096] Specifically, during the closing and opening process of the disconnector, the bracket body 31 moves linearly relative to the shell 1. In order to cooperate with the linear movement of the bracket body 31, the part of the shell 1 cooperating with the bracket body 31 is a plane, and the bracket body 31 is provided with a convex arc surface facilitating the sliding of the bracket body 31. In this way, the cooperation part of the bracket body 31 and the shell 1 is a line-line contact. This cooperation structure not only can reduce the wear of the bracket body 31 during sliding, but also can prevent the bracket body 31 and the shell 1 from being stuck.

[0097] Please refer to Figures 1 to 4 In some embodiments of the present application, the shell 1 includes a first half shell 11 and a second half shell that are coupled together, and the bracket body 31 is clamped between the first half shell 11 and the second half shell. Then, a first convex arc surface 31A can be arranged on the side of the bracket body 31 facing the first half shell 11, and a second convex arc surface 31B can be arranged on the side of the bracket body 31 facing the second half shell.

[0098] Please continue to refer to Figures 1 to 4 In some embodiments of the present application, at least one of the first half shell 11 or the second half shell is provided with a slide 111 to guide the linear movement of the bracket body 31. Then, a third convex arc surface 31C and a fourth convex arc surface 31D can be arranged at the cooperation part of the bracket body 31 and the two slides 111.

[0099] Please continue to refer to Figure 3 、 Figure 4In some embodiments of the present application, the isolating switch further comprises a reset spring 8, which is located on the side of the support body 31 away from the rotating member 21, and the housing 1 is correspondingly provided with a mounting structure for the reset spring 8. When the isolating switch is closed, the support body 31 will compress the reset spring 8, and the reset spring 8 stores energy. When the isolating switch is opened, the reset spring 8 releases the stored energy, and helps the support body 31 to move in the opposite direction, thereby accelerating the opening.

[0100] Those skilled in the art will appreciate that a combination of features of different embodiments means that it is within the scope of the present application and forms a different embodiment, even though some embodiments include certain features and not others. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0101] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features. Such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A moving contact holder, characterized by The bracket body is provided with a first mounting hole; The first mounting hole penetrates the bracket body along a first direction; Along a second direction, the first mounting hole comprises opposite first and second side walls, at least one of which is further provided with a movement guide column, a movable contact is capable of being mounted between the first and second side walls and cooperates with the movement guide column, the movement guide column is used for position guiding the relative movement of the movable contact in a third direction; the first, second and third directions are perpendicular to each other.

2. The movable contact support according to claim 1, characterized in that The bracket body is further provided with a second mounting hole; The second mounting hole is provided at one end of the bracket body and penetrates the first mounting hole, and is used for mounting a compression spring capable of contacting the movable contact.

3. The movable contact support of claim 2, wherein The second mounting hole is a cylindrical hole or a square hole.

4. The movable contact support according to claim 2 or 3, characterized in that The bracket body is further provided with a third mounting hole, which is used for mounting a connecting rod of an operating mechanism, so that the bracket body is linked with the operating mechanism.

5. The movable contact support of claim 4, wherein, Along the second direction, the third mounting hole penetrates the second mounting hole along one side of the second mounting hole; Along the third direction, the third mounting hole is located at one end of the second mounting hole away from the first mounting hole.

6. The movable contact support of any one of claims 1 to 3, characterized in that The circumferential direction of the bracket body is further provided with a convex arc surface facilitating the sliding of the bracket body.

7. A disconnector, characterized in that The operating mechanism, the movable contact assembly and the stationary contact are included. The movable contact assembly comprises a movable contact bracket, an elastic member and a movable contact. The movable contact bracket is the movable contact bracket of claim 1, and the movable contact bracket is capable of being linked with the operating mechanism. The movable contact comprises a movable contact plate provided with a guide notch matched with the movement guide column, and the movable contact plate is mounted between the first and second side walls through the guide notch. The elastic member is mounted on the movable contact bracket and contacts the movable contact plate. The stationary contact is located on the movement path of the movable contact and is oppositely arranged with the movable contact. In the later stage of closing of the disconnector, the movable contact bracket continues to move relative to the movable contact in the third direction and compresses the elastic member, so that the elastic member applies an action force to the movable contact facilitating the contact between the movable contact and the stationary contact.

8. The disconnector of claim 7, wherein The elastic member is a compression spring; The bracket body is further provided with a second mounting hole, which is provided at one end of the bracket body and penetrates the first mounting hole; The compression spring is provided at the second mounting hole, and one end of the compression spring contacts the movable contact plate.

9. The disconnector of claim 8, wherein The operating mechanism comprises a rotating member and a connecting rod, and the rotating member is rotationally connected with the housing of the disconnector; The bracket body is further provided with a third mounting hole, one end of the connecting rod is hingedly connected with the rotating member, the other end of the connecting rod is hingedly connected with the third mounting hole, and the bracket body is linked with the rotating member through the connecting rod.

10. The disconnector according to claim 9, characterized in that Along the second direction, the third mounting hole penetrates the second mounting hole along one side of the second mounting hole; In the third direction, the third mounting hole is located at an end of the second mounting hole away from the first mounting hole; The connecting rod inserted into the third mounting hole limits an end of the compression spring away from the movable contact.

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