Isolation switch

Abstract

The utility model discloses an isolating switch, and relates to the field of electrical equipment. The isolating switch comprises a base, a moving contact assembly, first static contacts, an insulating part and a transmission structure, the two paired static contacts are fixedly arranged on the base at intervals, the moving contact assembly is in sliding connection with the base, the moving contact assembly is provided with a switching-off position and a switching-on position relative to the base, and when the moving contact assembly is located at the switching-on position, the insulating part is located at the switching-off position. The moving contact assembly is connected with the two first static contacts, and when the moving contact assembly is in the opening position, the moving contact assembly is separated from the two first static contacts; the insulating part can move relative to the base and the moving contact assembly, and the transmission structure is used for driving the insulating part to move to the position between the two first static contacts in the opening movement process of the moving contact assembly. In the opening process, the insulating part can move to the position between the first static contacts, the blocking effect is achieved, and therefore the risk that an electric arc is generated between the two first static contacts is reduced. Therefore, the isolating switch has better safety.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and more specifically, to a disconnecting switch. Background Technology

[0002] In related technologies, disconnecting switches connect two stationary contacts (closing) or separate from them (opening) by the movement of a moving contact on a base. When opening, the moving contact moves away from the two stationary contacts, leaving a lack of obstruction between them, which makes it easy for arcing to occur, resulting in lower safety of the disconnecting switch. Utility Model Content

[0003] The purpose of this application is to provide a disconnecting switch that has high security.

[0004] The embodiments of this application can be implemented as follows:

[0005] This application provides a disconnecting switch, including a base, a moving contact assembly, first stationary contacts, an insulating member, and a transmission structure. Two pairs of first stationary contacts are fixedly disposed on the base at intervals. The moving contact assembly is slidably connected to the base. The moving contact assembly has an open position and a closed position relative to the base. When the moving contact assembly is in the closed position, the moving contact assembly conducts the two first stationary contacts. When the moving contact assembly is in the open position, the moving contact assembly disconnects the two first stationary contacts. The insulating member is movable relative to the base and the moving contact assembly. The transmission structure is used to drive the insulating member to move between the two first stationary contacts during the opening movement of the moving contact assembly.

[0006] In an optional embodiment, two first stationary contacts are spaced apart in a first direction, and a moving contact assembly and an insulating member are arranged in a second direction. The moving contact assembly and the insulating member are configured to move relative to the base in the second direction. The first direction is perpendicular to the second direction. During the closing movement, the moving contact assembly moves closer to the insulating member, and during the opening movement, the moving contact assembly moves further away from the insulating member.

[0007] In an optional embodiment, the transmission structure includes a pulling part connected to the side of the moving contact assembly facing the insulating member. The pulling part is provided with a first abutting part, and the insulating member is provided with a second abutting part. The first abutting part is used to abut against the second abutting part during the opening movement of the moving contact assembly, so that the insulating member is pulled by the pulling part between the two first stationary contacts.

[0008] In an optional embodiment, the transmission structure further includes a first elastic element, one end of which is connected to the moving contact assembly and the other end of which is connected to the insulating element. The first elastic element is used to make the moving contact assembly and the insulating element tend to move away from each other in a second direction. A first limiting part is provided on the base, which is used to abut against the insulating element during the closing movement of the moving contact assembly, so that the moving contact assembly and the insulating element overcome the elastic force of the first elastic element and move closer to each other.

[0009] In an optional embodiment, the transmission structure includes two pulling parts spaced apart in a first direction, at least a portion of an insulating member located between the two pulling parts, and the insulating member having two second abutting parts spaced apart in the first direction, which are respectively used to abut against the first abutting parts on the two pulling parts.

[0010] In an optional embodiment, the insulating member is a retractable structure that can extend and retract in the second direction. The insulating member can be stretched by the pulling part during the opening movement of the moving contact assembly, and the insulating member can be contracted during the closing movement of the moving contact assembly.

[0011] In an optional embodiment, the insulating member includes a first sliding member and a second sliding member, the first sliding member and the second sliding member are slidably engaged, the first sliding member and the second sliding member can slide relative to each other in a second direction, and a second abutting portion is disposed on the second sliding member; a third abutting portion is disposed on the first sliding member, and a fourth abutting portion is disposed on the second sliding member, the third abutting portion and the fourth abutting portion are used to abut against each other when the insulating member is stretched to its limit.

[0012] In an optional embodiment, the first slider includes two clamping portions spaced apart in the second direction, at least a portion of the second slider is slidably disposed between the two clamping portions, and the portion of the second slider located between the two clamping portions is provided with a fourth abutting portion on both sides in the second direction, and a third abutting portion is provided on the opposite side of the two clamping portions.

[0013] In an optional embodiment, the transmission structure includes a second elastic element, one end of which is connected to the base and the other end of which is connected to the insulating element. The second elastic element is used to drive the insulating element to move between the two first stationary contacts when the moving contact assembly performs the opening movement. During the closing movement of the moving contact assembly, the insulating element can be pushed and the second elastic element can be compressed.

[0014] In an optional embodiment, two first stationary contacts are spaced apart in a first direction, and the moving contact assembly and the insulating member are configured to move relative to the base in a second direction. The moving contact assembly, the insulating member, and the second elastic member are arranged sequentially in the second direction, with the first direction perpendicular to the second direction.

[0015] In an optional embodiment, a guide rail is provided on the base, and the insulating component slides in conjunction with the guide rail.

[0016] In an optional embodiment, the disconnecting switch includes at least two pairs of stationary contacts spaced apart in a second direction, wherein the first pair of stationary contacts is a pair of stationary contacts located at the ends in the second direction.

[0017] In an optional embodiment, the disconnecting switch includes at least two moving contact assemblies and a pair of first stationary contacts and an insulating member corresponding to each moving contact assembly, wherein the relative positions of the at least two moving contact assemblies are fixed to achieve synchronous movement.

[0018] The beneficial effects of the disconnecting switch provided in this application embodiment include:

[0019] This application provides a disconnecting switch, including a base, a moving contact assembly, first stationary contacts, an insulating member, and a transmission structure. Two pairs of first stationary contacts are fixedly disposed on the base at intervals. The moving contact assembly is slidably connected to the base and has an open position and a closed position relative to the base. When the moving contact assembly is in the closed position, it conducts the two first stationary contacts; when it is in the open position, it disconnects the two first stationary contacts. The insulating member is movable relative to the base and the moving contact assembly. The transmission structure is used to move the insulating member between the two first stationary contacts during the opening movement of the moving contact assembly. By providing the insulating member and the transmission structure, the insulating member can move promptly between the first stationary contacts during opening, achieving a blocking effect and reducing the risk of arcing between the two first stationary contacts. Therefore, the disconnecting switch provided in this application has better safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a disconnecting switch in one embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the moving contact assembly in the closed position in the first embodiment of this application;

[0023] Figure 3 for Figure 2 Enlarged view of section III in the middle;

[0024] Figure 4This is a partial schematic diagram of the moving contact assembly in the open position in the first embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the insulating member and the first elastic member in the first embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the moving contact assembly in the closed position according to the second embodiment of this application;

[0027] Figure 7 for Figure 6 Enlarged view of section VII in the middle;

[0028] Figure 8 This is a partial schematic diagram of the moving contact assembly in the open position in the second embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the insulating element stretched to its limit in the second embodiment of this application;

[0030] Figure 10 This is a partial schematic diagram of the moving contact assembly in the open position in the third embodiment of this application.

[0031] Icons: 100-Base; 101-First limiting part; 102-Second limiting part; 103-Second mounting hole; 104-Third mounting hole; 200-Moving contact assembly; 210-Moving contact; 220-Bracket; 300-First stationary contact; 400-Insulating component; 401-Second abutting part; 402-Third abutting part; 403-Fourth abutting part; 404-Matching groove; 405-Mounting post; 406-Mounting sleeve; 410-First sliding component; 411-Plug-in part; 412-Limiting boss; 413-Clamping part; 420-Plug-in groove; 510-Pull-in part; 511-First abutting part; 520-First elastic component; 530-Second elastic component. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0038] Figure 1 This is a schematic diagram of a disconnecting switch in one embodiment of this application. Figure 1 As shown, the disconnecting switch provided in this embodiment includes a base 100, a moving contact assembly 200, a first stationary contact 300, an insulating member 400, and a transmission structure. Optionally, the disconnecting switch includes at least two moving contact assemblies 200 and pairs of first stationary contacts 300 and insulating members 400 corresponding to each moving contact assembly, with the relative positions of the at least two moving contact assemblies 200 fixed to achieve synchronous movement. In this embodiment, the disconnecting switch includes two bases 100, and the two bases 100 are respectively provided with moving contact assemblies 200, first stationary contacts 300, insulating members 400, and transmission structures. Specifically, each base 100 is provided with one moving contact assembly 200, two pairs of first stationary contacts 300, and an insulating member 400. Optionally, the moving contact assemblies 200 on the two bases 100 are connected by a connector to maintain relative fixation. This arrangement allows the entire disconnecting switch to have more terminals, and the two pairs of first stationary contacts 300 can be electrically connected or disconnected synchronously. It should be understood that in other embodiments, the disconnecting switch may also consist of only a base 100, a moving contact assembly 200, a pair of first stationary contacts 300, and an insulator 400.

[0039] The following description uses the arrangement of the moving contact assembly 200, the first stationary contact 300, the insulating component 400, and the transmission structure on one of the bases 100 as an example. The other base 100 can be configured as a symmetrical structure or made adaptively. Figure 2 This is a schematic diagram of the moving contact assembly 200 in the closed position in the first embodiment of this application; Figure 3 for Figure 2 Enlarged view of section III in the middle; Figure 4 This is a partial schematic diagram of the moving contact assembly 200 in the open position in the first embodiment of this application. Figures 2 to 4 As shown, in this embodiment, two pairs of first stationary contacts 300 are fixedly disposed on the base 100 at intervals. The moving contact assembly 200 is slidably connected to the base 100. The moving contact assembly 200 has an open position and a closed position relative to the base 100. When the moving contact assembly 200 is in the closed position, the moving contact assembly 200 conducts the two first stationary contacts 300. When the moving contact assembly 200 is in the open position, the moving contact assembly 200 disconnects the two first stationary contacts 300. The insulating member 400 is movable relative to the base 100 and the moving contact assembly 200. The transmission structure is used to drive the insulating member 400 to move between the two first stationary contacts 300 during the opening movement of the moving contact assembly 200. Since the insulating component 400 of the moving contact assembly 200 can be positioned between the two first stationary contacts 300 after the circuit is opened, the insulating component 400 can play a blocking role, reducing the risk of arcing between the two first stationary contacts 300, thereby improving the safety of the disconnecting switch.

[0040] In this embodiment, the moving contact assembly 200 includes a bracket 220 and a moving contact 210 disposed on the bracket 220. The moving contact 210 is made of metal and therefore conductive. The bracket 220 is slidably engaged with the base 100. When the moving contact assembly 200 slides to the open position, the moving contact 210 does not contact the two first stationary contacts 300, therefore there is no electrical connection between the two first stationary contacts 300. When the moving contact assembly 200 slides to the closed position, the moving contact 210 contacts the two first stationary contacts 300, therefore the two first stationary contacts 300 are electrically connected through the moving contact 210.

[0041] In this embodiment, the two first stationary contacts 300 are in the first direction ( Figure 2 The moving contact assembly 200 and the insulating member 400 are spaced apart in the second direction (ab direction). Figure 2The moving contact assembly 200 and the insulating member 400 are arranged in the middle (cd direction) and are configured to move relative to the base 100 in a second direction, with the first direction perpendicular to the second direction. In this embodiment, the moving contact assembly 200 moves closer to the insulating member 400 during the closing movement and moves further away from the insulating member 400 during the opening movement. The opening movement refers to the moving contact assembly 200 moving from the closed position to the open position, and the closing movement refers to the moving contact assembly 200 moving from the open position to the closed position. This arrangement allows for a more compact arrangement between the moving contact assembly 200 and the insulating member 400 when the moving contact assembly 200 is in the closed position, thus reducing the size of the disconnector. When the moving contact assembly 200 is in the open position, the insulating member 400 is positioned at a suitable distance from the moving contact assembly 200, ensuring that the insulating member 400 is positioned precisely between the two first stationary contacts 300. Figure 3 As can be seen, the insulating component 400 is relatively close to the moving contact assembly 200, while... Figure 4 In the middle, the insulating component 400 is relatively far away from the moving contact assembly 200.

[0042] Optionally, the disconnecting switch includes at least two pairs of stationary contacts spaced apart in the second direction, wherein the paired first stationary contacts 300 are a pair of stationary contacts located at the ends in the second direction; wherein, the pair of stationary contacts located at the ends in the second direction refers to the two stationary contacts at the ends of a queue of stationary contacts arranged along the second direction formed by multiple pairs of stationary contacts. In this embodiment, each base 100 is also provided with a pair of second stationary contacts (not shown in the figure) and a pair of third stationary contacts (not shown in the figure). The paired first stationary contacts 300, the paired second stationary contacts, and the paired third stationary contacts are arranged sequentially in the second direction. Figure 1 As shown, the base 100 is provided with a first mounting hole, a second mounting hole 103, and a third mounting hole 104. The first mounting hole is used to mount the first stationary contact 300, the second mounting hole 103 is used to mount the second stationary contact, and the third mounting hole 104 is used to mount the third stationary contact. Each stationary contact is fixed by two corresponding mounting holes. It should be understood that the moving contact assembly 200 is also provided with a moving contact (not shown in the figure) for connecting and disconnecting the second and third stationary contacts.

[0043] exist Figures 2 to 4In the illustrated embodiment, the transmission structure includes a pulling part 510, which is connected to the side of the moving contact assembly 200 facing the insulating member 400. Specifically, the pulling part 510 is connected to the side of the bracket 220 facing the insulating member 400. The pulling part 510 is provided with a first abutting part 511, and the insulating member 400 is provided with a second abutting part 401. The first abutting part 511 abuts against the second abutting part 401 during the opening movement of the moving contact assembly 200, so that the insulating member 400 is pulled by the pulling part 510 between the two first stationary contacts 300. Further, the first abutting part 511 is located at the end of the pulling part 510 away from the moving contact assembly 200. The first abutment portion 511 and the second abutment portion 401 define the farthest distance between the moving contact assembly 200 and the insulating member 400. When the moving contact assembly 200 and the insulating member 400 are at their farthest distance, the first abutment portion 511 abuts against the second abutment portion 401. Therefore, when the moving contact assembly 200 moves further towards the open position, the insulating member 400 moves along with the moving contact assembly 200 under the action of the pulling portion 510 until the moving contact assembly 200 moves to the open position. At this time, the insulating member 400 is located between the two first stationary contacts 300, which can play a separating role and reduce the risk of arcing between the two first stationary contacts 300. When the moving contact assembly 200 performs the closing movement, the first abutment portion 511 and the second abutment portion 401 can separate, and the insulating member 400 and the moving contact assembly 200 move closer to each other, thereby making their structures more compact.

[0044] Specifically, in this embodiment, the transmission structure includes two pulling portions 510 spaced apart in a first direction. At least a portion of the insulating member 400 is located between the two pulling portions 510. The insulating member 400 is provided with two second abutting portions 401 spaced apart in the first direction, which are respectively used to abut against the first abutting portions 511 on the two pulling portions 510. The first abutting portions 511 on the two pulling portions 510 protrude towards each other, while the two abutting portions on the insulating member 400 protrude from the surface of the insulating member 400 in directions opposite to each other. By providing two pulling portions 510, the transmission structure can more reliably drive the insulating member 400 to move. In this embodiment, the insulating member 400 is provided with two mating grooves 404. The two pulling portions 510 are respectively inserted into the two mating grooves 404, and the two second abutting portions 401 are respectively provided on the sidewalls of the two mating grooves 404.

[0045] Furthermore, the transmission structure also includes a first elastic element 520, one end of which is connected to the moving contact assembly 200 (specifically connected to the bracket 220), and the other end of which is connected to the insulating element 400. The first elastic element 520 is used to make the moving contact assembly 200 and the insulating element 400 tend to move away from each other in a second direction. A first limiting part 101 is provided on the base 100. The first limiting part 101 is used to abut against the insulating element 400 during the closing movement of the moving contact assembly 200, so that the moving contact assembly 200 and the insulating element 400 overcome the elastic force of the first elastic element 520 and move closer to each other. It is understood that the first limiting part 101 defines an extreme position of the insulating member 400 in the second direction (i.e., the right extreme position in the figure). When the moving contact assembly 200 performs a closing movement, the insulating member 400 is pushed by the first elastic member 520 to move out from between the two first stationary contact assemblies 300 and move towards the first limiting part 101. After the insulating member 400 abuts against the first limiting part 101, the moving contact assembly 200 has not yet moved to the closing position, so it continues to move, causing the distance between the insulating member 400 and the moving contact assembly 200 to decrease, and the first elastic member 520 to be compressed. By providing the first elastic member 520, it can provide assistance when the moving contact assembly 200 performs a opening movement, so that the moving contact assembly 200 moves quickly from the closing position to the opening position. In this embodiment, the first elastic member 520 is located between the two pulling parts 510. In this embodiment, the first limiting part 101 is a plate at the edge of the base 100. In other embodiments, the first limiting part 101 may also be a boss or other structures.

[0046] Figure 5 This is a schematic diagram of the insulating member 400 and the first elastic member 520 in the first embodiment of this application. Figure 5 As shown, in this embodiment, the first elastic element 520 is a spring, specifically a compression spring. The insulating member 400 has a mounting post 405 and a mounting sleeve 406 on the side facing the moving contact assembly 200. The mounting sleeve 406 is fitted onto the outside of the mounting post 405, forming a mounting space between them. The end of the first elastic element 520 can be inserted into the mounting sleeve 406 and fitted onto the mounting post 405, thereby partially inserting the first elastic element 520 into the mounting space. This arrangement ensures that the force direction of the first elastic element 520 remains in the second direction, improving the reliability of the first elastic element 520. It should be understood that a similar structure can also be provided on the bracket 220 of the moving contact assembly 200 to fix the other end of the first elastic element 520. In this embodiment, when the moving contact assembly 200 is in the open position, the first elastic member 520 can also keep the insulating member 400 in the position furthest away from the moving contact assembly 200, that is, the first abutting part 511 and the second abutting part 401 are in abutting state. At this time, the insulating member 400 can be stably positioned between the two first stationary contact assemblies 300.

[0047] It should be understood that in other alternative embodiments, the first elastic element 520 may also be omitted. When the moving contact assembly 200 performs the closing movement, it first approaches the insulating element 400, and then pushes the insulating element 400 to move it away from the two first stationary contacts 300. To ensure that the insulating element 400 has better stability when the moving contact assembly 200 is in the opening position, a second limiting part 102 (e.g., ...) can be provided on the base 100. Figure 8 (as shown) to define another extreme position of the insulating element 400 relative to the base 100 (i.e., the left extreme position in the figure).

[0048] In this embodiment, a guide rail can be provided on the base 100, and the insulating component 400 slides with the guide rail to ensure that the insulating component 400 has a fixed movement path and improves the stability during movement.

[0049] Figure 6 This is a schematic diagram of the moving contact assembly 200 in the closed position in the second embodiment of this application; Figure 7 for Figure 6 Enlarged view of section VII in the middle; Figure 8 This is a partial schematic diagram of the moving contact assembly 200 in the open position according to the second embodiment of this application. Figures 6 to 8 As shown, the insulating member 400 is a retractable structure that can extend and retract in the second direction. The insulating member 400 can be stretched by the pulling part 510 during the opening movement of the moving contact assembly 200, and can retract during the closing movement of the moving contact assembly 200. By making the insulating member 400 a retractable structure, it can expand between the two first stationary contacts 300, thus providing better isolation; when closing, the insulating member 400 can retract, resulting in a smaller space occupation.

[0050] Figure 9 This is a schematic diagram showing the insulating member 400 stretched to its limit in the second embodiment of this application. (In conjunction with...) Figures 6 to 9 As shown, in this embodiment, the insulating member 400 includes a first sliding member 410 and a second sliding member. The first sliding member 410 and the second sliding member are slidably engaged and can slide relative to each other in a second direction. A second abutting portion 401 is disposed on the second sliding member. A third abutting portion 402 is disposed on the first sliding member 410, and a fourth abutting portion 403 is disposed on the second sliding member. The third abutting portion 402 and the fourth abutting portion 403 are used to abut against each other when the insulating member 400 is stretched to its limit.

[0051] In this embodiment, the first sliding member 410 includes two clamping portions 413 spaced apart in the second direction, and at least a portion of the second sliding member is slidably disposed between the two clamping portions 413. The portion of the second sliding member located between the two clamping portions 413 has fourth abutment portions 403 on both sides in the second direction, and third abutment portions 402 protrude from opposite sides of the two clamping portions 413. In this embodiment, the second sliding member has an insertion groove 420, and the first sliding member 410 has an insertion portion 411, which engages with the insertion groove 420. The insertion portion 411 serves as a guide, restricting the relative movement of the first sliding member 410 and the second sliding member to the insertion direction of the insertion portion 411, thereby improving the stability of their relative movement.

[0052] In this embodiment, the transmission structure includes two pulling portions 510 spaced apart in a first direction. At least a portion of the second sliding member is located between the two pulling portions 510. The second sliding member has two second abutting portions 401 spaced apart in the first direction, which are respectively used to abut against the first abutting portions 511 on the two pulling portions 510. The first abutting portions 511 on the two pulling portions 510 protrude towards each other, while the two abutting portions on the insulating member 400 protrude in opposite directions. In this embodiment, the second sliding member has two mating grooves 404. The two pulling portions 510 are respectively inserted into the two mating grooves 404, and the two second abutting portions 401 are respectively disposed on the sidewalls of the two mating grooves 404.

[0053] It should be understood that in other embodiments, the insulating element 400 may also be a telescopic structure composed of more components.

[0054] In this embodiment, a second limiting part 102 is also provided on the base 100, and a limiting boss 412 is provided on the first sliding member 410. When the insulating member 400 is driven by the pulling part 510 to the space between the two first stationary contacts 300, the limiting boss 412 abuts against the second limiting part 102. Therefore, the second limiting part 102 limits an extreme position of the first sliding member 410.

[0055] In both of the above embodiments, the transmission structure includes a pulling part 510 disposed on the moving contact assembly 200, and the insulating member 400 moves between the two first stationary contacts 300 under the drive of the pulling part 510. In other embodiments, the movement of the insulating member 400 may not depend on the pulling part 510. Figure 10 This is a partial schematic diagram of the moving contact assembly 200 in the open position according to the third embodiment of this application. Figure 10As shown, the transmission structure may include a second elastic element 530. One end of the second elastic element 530 is connected to the base 100, and the other end is connected to the insulating element 400. The second elastic element 530 is used to drive the insulating element 400 to move between the two first stationary contacts 300 when the moving contact assembly 200 performs an opening movement. During the closing movement of the moving contact assembly 200, it can push the insulating element 400 and compress the second elastic element 530. Specifically, the moving contact assembly 200, the insulating element 400, and the second elastic element 530 are arranged sequentially in the second direction. The second elastic element 530 may be a compression spring, with one end connected to the insulating element 400 and the other end connected to the first limiting part 101 on the base 100. When the moving contact assembly 200 moves from the closed position to the open position, the second elastic element 530 can push the insulating element 400 until it reaches its limit position; when the moving contact assembly 200 makes a closing movement, it first approaches and abuts the insulating element 400, and then pushes the insulating element 400 out from between the two first stationary contacts 300, while the second elastic element 530 is compressed.

[0056] In summary, this application provides a disconnecting switch, which includes a base 100, a moving contact assembly 200, first stationary contacts 300, an insulating member 400, and a transmission structure. Two pairs of first stationary contacts 300 are fixedly disposed on the base 100 at intervals. The moving contact assembly 200 is slidably connected to the base 100. The moving contact assembly 200 has an open position and a closed position relative to the base 100. When the moving contact assembly 200 is in the closed position, it conducts the two first stationary contacts 300. When the moving contact assembly 200 is in the open position, it disconnects the two first stationary contacts 300. The insulating member 400 is movable relative to the base 100 and the moving contact assembly 200. The transmission structure is used to drive the insulating member 400 to move between the two first stationary contacts 300 during the opening movement of the moving contact assembly 200. By incorporating the insulating component 400 and the transmission structure, the insulating component 400 can move promptly between the first stationary contacts 300 during opening, providing a blocking effect and reducing the risk of arcing between the two first stationary contacts 300. Therefore, the disconnecting switch provided in this embodiment has superior safety.

[0057] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A disconnector, characterized in that The utility model relates to a circuit breaker, including base (100), movable contact assembly (200), first static contact (300), insulating piece (400) and transmission structure, two first static contact (300) are fixedly arranged at the base (100) mutually spaced, the movable contact assembly (200) is connected with the base (100) slidingly, the movable contact assembly (200) has the position of opening and closing relative to the base (100), when the movable contact assembly (200) is in the closed position, the movable contact assembly (200) is connected with two first static contact (300), when the movable contact assembly (200) is in the opening position, the movable contact assembly (200) is disconnected with two first static contact (300), the insulating piece (400) is movable relative to the base (100) and the movable contact assembly (200), and the transmission structure is used to drive the insulating piece (400) to move to two first static contact (300) in the process that the movable contact assembly (200) opens.

2. The disconnector according to claim 1, characterized in that Two first static contact (300) are arranged in the first direction, and the movable contact assembly (200) and the insulating piece (400) are arranged in the second direction, the movable contact assembly (200) and the insulating piece (400) are arranged to be movable relative to the base (100) in the second direction, the first direction is perpendicular to the second direction, the movable contact assembly (200) and the insulating piece (400) are close to each other in the process of closing, and the movable contact assembly (200) and the insulating piece (400) are away from each other in the process of opening.

3. The disconnector according to claim 2, characterized in that The transmission structure includes a pulling portion (510) connected to one side of the movable contact assembly (200) facing the insulating piece (400), a first abutting portion (511) is provided on the pulling portion (510), a second abutting portion (401) is provided on the insulating piece (400), and the first abutting portion (511) is used to abut against the second abutting portion (401) in the process of opening the movable contact assembly (200) to make the insulating piece (400) be taken to two first static contact (300) by the pulling portion (510).

4. The disconnector according to claim 3, characterized in that The transmission structure further comprises a first elastic member (520), one end of the first elastic member (520) is connected to the movable contact assembly (200), the other end of the first elastic member (520) is connected to the insulating member (400), and the first elastic member (520) is used to make the movable contact assembly (200) and the insulating member (400) have a tendency to move away from each other in the second direction, and the base (100) is provided with a first limiting portion (101), which is used to abut against the insulating member (400) during the closing movement of the movable contact assembly (200), so that the movable contact assembly (200) and the insulating member (400) overcome the elastic force of the first elastic member (520) and move close to each other.

5. The disconnector according to claim 3, characterized in that The transmission structure comprises two pull portions (510) arranged at intervals in the first direction, and at least a part of the insulating member (400) is located between the two pull portions (510), and the insulating member (400) is provided with two second abutting portions (401) arranged at intervals in the first direction, which are respectively used to abut against the first abutting portions (511) on the two pull portions (510).

6. The disconnector according to claim 3, characterized in that The insulating member (400) is a telescopic structure that can be telescoped in the second direction, and the insulating member (400) can be stretched by the pull portion (510) during the opening movement of the movable contact assembly (200), and the insulating member (400) can be contracted during the closing movement of the movable contact assembly (200).

7. The disconnector according to claim 6, characterized in that The insulating member (400) comprises a first sliding member (410) and a second sliding member, the first sliding member (410) and the second sliding member are in sliding cooperation, the first sliding member (410) and the second sliding member can slide relative to each other in the second direction, and the second abutting portion (401) is arranged on the second sliding member; the first sliding member (410) is provided with a third abutting portion (402), and the second sliding member is provided with a fourth abutting portion (403), and the third abutting portion (402) and the fourth abutting portion (403) are used to abut against each other when the insulating member (400) is stretched to the limit.

8. The disconnector according to claim 7, characterized in that The first sliding member (410) comprises two clamping portions (413) arranged at intervals in the second direction, at least a part of the second sliding member is slidably arranged between the two clamping portions (413), and the part of the second sliding member located between the two clamping portions (413) is provided with the fourth abutting portion (403) on both sides in the second direction, and the opposite sides of the two clamping portions (413) are respectively provided with the third abutting portion (402).

9. The disconnector according to claim 1, characterized in that The transmission structure comprises a second elastic member (530), one end of the second elastic member (530) is connected to the base (100), the other end is connected to the insulating member (400), the second elastic member (530) is used to drive the insulating member (400) to move between the two first static contacts (300) when the movable contact assembly (200) makes an opening movement, and the movable contact assembly (200) can push the insulating member (400) and compress the second elastic member (530) during a closing movement.

10. The disconnector according to claim 9, characterized in that The two first static contacts (300) are arranged at intervals in a first direction, the movable contact assembly (200) and the insulating member (400) are arranged to be movable relative to the base (100) in a second direction, and the movable contact assembly (200), the insulating member (400) and the second elastic member (530) are arranged in sequence in the second direction, and the first direction is perpendicular to the second direction.

11. The disconnector according to claim 2, characterized in that The disconnector comprises at least two pairs of static contacts arranged at intervals in the second direction, and the pair of first static contacts (300) is a pair of static contacts located at the end in the second direction.

12. The disconnector according to any of claims 1-11, characterized in that The disconnector comprises at least two movable contact assemblies (200), and the pair of first static contacts (300) and the insulating member (400) corresponding to each movable contact assembly (200), respectively, and the relative positions of the at least two movable contact assemblies (200) are fixed to realize synchronous movement.

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