Rotary isolating switch

Abstract

The utility model provides a rotary disconnecting switch, and relates to the field of low-voltage electrical appliances, the rotary disconnecting switch comprises a switch unit, the switch unit comprises a switch housing, a rotary contact assembly and a static contact are arranged in the switch housing, the rotary contact assembly comprises a moving contact, and the rotary contact assembly is rotatably arranged in the switch housing, so that the moving contact and the static contact are contacted or disconnected. The switch shell comprises a contact connecting side, the static contact comprises a static contact wiring portion extending to the outer side of the switch shell from the contact connecting side, the contact connecting side is connected with the bottom of the switch shell in a bent mode, the bottom of the switch shell extends towards the outside of the contact connecting side to form an insulating partition plate, and a structural reinforcing piece is arranged between the insulating partition plate and the contact connecting side. The utility model discloses a rotary isolating switch, which is used for enhancing the structural strength of an insulating partition plate and preventing the insulating partition plate from being damaged and fractured to reduce the insulating property of the rotary isolating switch in a wiring or using process.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a rotary disconnect switch. Background Technology

[0002] Disconnect switches serve to isolate power supplies and break circuits. With the rapid development of the photovoltaic industry, rotary disconnect switches have also been widely used. In recent years, increasingly higher requirements have been placed on the current-carrying capacity and temperature rise performance of rotary disconnect switches. This places higher demands on the wiring capabilities and housing strength of the switches.

[0003] In the existing technology, rotary disconnect switches have poor structural strength and are prone to casing breakage due to wiring issues. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rotary disconnect switch with a higher shell structure strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This application provides a rotary disconnect switch, including a switch unit. The switch unit includes a switch housing, and a rotary contact assembly and a stationary contact are disposed inside the switch housing. The rotary contact assembly includes a moving contact. The rotary contact assembly is rotatably disposed inside the switch housing, so that the moving contact contacts or disconnects from the stationary contact. The switch housing includes a contact connection side, and the stationary contact includes a stationary contact wiring portion extending from the contact connection side to the outside of the switch housing. The contact connection side is bent and connected to the bottom of the switch housing. An insulating partition extends from the bottom of the switch housing outward toward the contact connection side. A structural reinforcement is disposed between the insulating partition and the contact connection side to enhance the structural strength of the insulating partition.

[0007] In one possible implementation, the structural reinforcement, the insulating partition, and the switch housing are integrally formed. The structural reinforcement includes a reinforcing rib located at the angle between the insulating partition and the contact connection side. The reinforcing rib includes a partition connecting portion and a side plate connecting portion. The partition connecting portion is connected to the insulating partition, and the side plate connecting portion is connected to the contact connection side. An inclined slope is connected between the side plate connecting portion and the partition connecting portion, and the angle between the inclined slope and the insulating partition and the contact connection side is an acute angle.

[0008] In one possible implementation, the rotary disconnect switch further includes a wiring component, wherein the contact connection side includes a stationary contact connection area, the stationary contact wiring portion is parallel to the contact connection side, the stationary contact connection area corresponds to the position of the stationary contact wiring portion of the stationary contact, and the wiring component is fixedly connected to the stationary contact wiring portion through the stationary contact connection area.

[0009] In one possible implementation, the stationary contact wiring portion is provided with a first fixing portion, the wiring component includes a wiring plate, the wiring plate includes a second fixing portion that cooperates with and is fixed to the first fixing portion, a first limiting portion is provided on at least one side of the first fixing portion, a second limiting portion is provided on at least one side of the second fixing portion, and the positions of the first limiting portion and the second limiting portion are correspondingly matched and limited.

[0010] In one possible implementation, the first fixing part is located in the middle of the stationary contact wiring part, the second fixing part is located in the middle of the wiring plate, two first limiting parts are provided on both sides of the first fixing part, and two second limiting parts are provided on both sides of the second fixing part.

[0011] In one possible implementation, the first fixing part is a first screw hole, and the second fixing part is a second screw hole, with the device being fixed in place by a screw passing through both the first and second screw holes.

[0012] The first limiting part is a limiting post, and the second limiting part is a limiting hole; or, the second limiting part is a limiting post, the first limiting part is a limiting hole, and the limiting post passes through the limiting hole for limiting.

[0013] In one possible implementation, a plurality of reinforcing ribs are provided parallel to and spaced apart between the insulating partition and the contact connection side, with the plurality of reinforcing ribs distributed on both sides of the insulating partition; or, two reinforcing ribs are provided in a strip-like arrangement on both sides of the contact connection side.

[0014] In one possible implementation, the switch unit is provided with an arc-extinguishing grid assembly, the arc-extinguishing grid assembly including two insulating side plates, a plurality of metal arc-extinguishing grids sandwiched between the two insulating side plates, the metal arc-extinguishing grids including a first notch, at least one insulating spacer integrally formed with the switch housing, and the insulating spacer at least blocks the gaps of two adjacent metal arc-extinguishing grids away from the tail of the first notch.

[0015] In one possible implementation, the rotary disconnect switch includes a first switch unit and a second switch unit stacked together, wherein the thickness of the first switch unit is greater than the thickness of the second switch unit, the thickness of the stationary contact of the first switch unit is greater than the thickness of the stationary contact of the second switch unit, and the structural reinforcement is disposed on the switch housing of the first switch unit.

[0016] In one possible implementation, the stationary contact connection area is located in the middle of the contact connection side, and the structural reinforcement is located on both sides of the stationary contact connection area.

[0017] Compared to existing technologies, the rotary disconnect switch of this utility model includes a switch unit, with a rotary contact assembly and a stationary contact disposed within the switch housing. The rotary contact assembly includes a moving contact, which is rotatably disposed inside the switch housing, allowing the moving contact to contact or disconnect from the stationary contact. The switch housing includes a contact connection side, which is bent and connected to the bottom of the switch housing. An insulating partition extends from the bottom of the switch housing outward toward the contact connection side. A structural reinforcement is disposed between the insulating partition and the contact connection side. This structural reinforcement enhances the structural strength of the insulating partition, effectively strengthening the connection between the insulating partition and the contact connection side, preventing damage or breakage of the insulating partition during wiring or use, thus preventing a reduction in the insulation performance of the rotary disconnect switch.

[0018] Furthermore, the rotary disconnect switch also includes a wiring component. One end of the wiring component is fixedly installed to an external wire, and the other end is fixedly connected to the stationary contact wiring part. The wiring component facilitates the connection between the external wire and the stationary contact. The stationary contact wiring part includes a first screw hole, and the wiring component includes a second screw hole. Screws are used to pass through the first screw hole and the second screw hole for fixation. Two limit posts are provided on both sides of the first screw hole, and two limit holes are provided on both sides of the second screw hole. The two limit posts are respectively inserted into the two limit holes for limiting, which helps to stabilize the wiring component and prevent the wiring component from rotating.

[0019] Furthermore, at least one insulating spacer is integrally formed with the switch housing, and the insulating spacer at least blocks the gap between two adjacent metal arc-extinguishing grids away from the tail of the first notch, for electrical isolation of the tails of the two adjacent metal arc-extinguishing grids. This prevents the arc from passing through the gap between the metal arc-extinguishing grids and rushing to the rear of the entire arc-extinguishing grid group when the rotary disconnecting switch breaks a large current, causing it to reconnect and form a long arc, resulting in the failure of the metal arc-extinguishing grids to divide the arc and ultimately leading to arc extinguishing failure. This application can improve the breaking capacity of the rotary disconnecting switch. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the rotary disconnect switch before the installation of the wiring component of this utility model;

[0021] Figure 2 This is a schematic diagram of the rotary disconnect switch after the wiring components of this utility model are installed;

[0022] Figure 3 This is a schematic diagram of the structure of the metal arc-extinguishing grid sheet of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the switching unit in one embodiment of the present invention;

[0024] Figure 5This is a schematic diagram of the structure of an arc-extinguishing grid assembly according to an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 A schematic diagram of the structure of the insulating side plate;

[0026] Figure 7a and Figure 7b yes Figure 4 A schematic diagram of the switch housing of the intermediate switch unit;

[0027] Figure 8a and Figure 8b This is a schematic diagram of the internal structure of the switching unit in one embodiment of the present invention;

[0028] The reference numerals in the attached drawings include: operating device 105; switching unit 100; rotating contact assembly 6; stationary contact 7; arc-extinguishing grid assembly 8; contact connection side 1; insulating partition 2; structural reinforcement 3; stationary contact wiring part 4; wiring component 5; first fixing part 41; wiring plate 51; second fixing part 52; first limiting part 42; second limiting part 53; first switching unit 101; second switching unit 102; insulating side plate 81; metal arc-extinguishing grid 82; first notch 821; second notch 811; first arc-extinguishing groove 823; second arc-extinguishing groove 824; insulating partition 83; and tip structure 822. Detailed Implementation

[0029] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0030] like Figures 1-8b As shown, the rotary disconnect switch includes a stacked operating device 105 and a switch unit 100. The operating device 105 includes an operating mechanism connected to the switch unit 100, used to drive the switch unit 100 to open or close, connecting or disconnecting the circuit. The switch unit 100 includes a switch housing and a rotary contact assembly 6, a stationary contact 7, and an arc-extinguishing grid assembly 8 disposed inside the switch housing. The rotary contact assembly 6 includes a moving contact. The operating mechanism is connected to the rotary contact assembly 6 and can drive the rotary contact assembly 6 to rotate inside the switch unit 100, thereby driving the moving contact to contact or separate from the stationary contact 7, completing the connection or disconnection of the circuit. It has the advantages of compact device and simple operation. The arc-extinguishing grid assembly 8 is used to extinguish the electric arc generated at the moment the moving contact and stationary contact 7 contact or disconnect.

[0031] The operating device 105 also includes a trip unit, which is connected to the operating mechanism and the control system respectively. The control system is connected to the circuit network corresponding to the trip unit. When the circuit network fails, the control system drives the trip unit to trip the operating mechanism. The operating mechanism drives the moving contact of the switch unit 100 to separate from the stationary contact 7, thereby improving the safety protection performance of the disconnecting switch.

[0032] In a preferred embodiment of this application, the switch unit 100 is provided with two stationary contacts 7 spaced apart. One stationary contact 7 is connected to the inlet end of the line, and the other stationary contact 7 is connected to the outlet end of the line. The rotating contact assembly 6 rotates and simultaneously contacts or disconnects from the two stationary contacts 7, thereby controlling the conduction or disconnection of the circuit.

[0033] like Figures 1-2 As shown, this utility model provides a rotary disconnect switch. The switching unit 100 of the rotary disconnect switch includes a switch housing, the switch housing includes a contact connection side 1, and a stationary contact 7 includes a stationary contact wiring portion 4 extending from the contact connection side 1 to the outside of the switch housing. The stationary contact wiring portion 4 is parallel to the contact connection side 1. The contact connection side 1 includes a stationary contact connection area. The contact connection side 1 is bent and connected to the bottom of the switch housing. The bending angle is preferably a right angle. An insulating partition 2 extends from the bottom of the switch housing to the outside of the contact connection side 1. The included angle between the insulating partition 2 and the right angle of the contact connection side 1 is preferably a right angle.

[0034] When multiple switch units 100 are stacked, the insulating partition 2 is located between two adjacent switch units 100 and can provide insulation. The contact connection side 1 is used to connect the stationary contact 7 in the switch unit 100 to the external wire.

[0035] like Figures 1-2 As shown, a structural reinforcement 3 is provided between the insulating partition 2 and the contact connection side 1. The structural reinforcement 3 can enhance the structural strength of the insulating partition 2 and the connection strength between the insulating partition 2 and the contact connection side 1, and prevent the insulating partition 2 from being damaged or broken by external wires during wiring or use, thereby reducing the insulation performance of the rotary disconnect switch.

[0036] Preferred, such as Figures 1-2 As shown, the structural reinforcement 3 includes a reinforcing rib, which is disposed at the angle between the insulating partition 2 and the contact connection side 1. The reinforcing rib includes a partition connecting part and a side plate connecting part. The partition connecting part is fixedly connected to the insulating partition 2, and the side plate connecting part is fixedly connected to the contact connection side 1. An inclined surface is connected between the side plate connecting part and the partition connecting part. The inclined surface can be a plane or an arc surface. The angle between the inclined surface and the insulating partition 2 and the contact connection side 1 is an acute angle.

[0037] Preferred, such as Figure 1 and Figure 2 As shown, the stationary contact connection area is located in the middle of the contact connection side 1, and corresponds to the position of the stationary contact wiring portion 4 of the stationary contact 7. The rotary disconnecting switch also includes a wiring component 5, one end of which is fixedly installed with an external wire, and the other end of which is fixedly connected to the stationary contact wiring portion 4. The wiring component 5 facilitates the connection between the external wire and the stationary contact 7. The stationary contact connection area is provided with a first through hole for the stationary contact 7 to extend out of the switch housing.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the structural reinforcement 3 is located on both sides of the stationary contact connection area.

[0039] Furthermore, such as Figure 1 and Figure 2 As shown, a first fixing part 41 is provided on the stationary contact wiring portion 4. The wiring component 5 includes a wiring plate 51, and the wiring plate 51 includes a second fixing part 52. Through the cooperation of the first fixing part 41 and the second fixing part 52, the wiring plate 51 and the stationary contact wiring portion 4 can be fixedly installed. In a preferred embodiment of this application, the first fixing part 41 is located in the middle of the stationary contact wiring portion 4, and the second fixing part 52 is located in the middle of the wiring plate 51, so that the wiring component 5 and the stationary contact wiring portion 4 are subjected to balanced forces.

[0040] Furthermore, a first limiting part 42 is provided on at least one side of the first fixing part 41, and a second limiting part 53 is provided on at least one side of the second fixing part 52. The first limiting part 42 and the second limiting part 53 are positioned in a corresponding and coordinated manner to limit the movement. The provision of the first limiting part 42 and the second limiting part 53 helps to stabilize the connector 5 and prevent the connector 5 from rotating.

[0041] Furthermore, a plurality of reinforcing ribs are provided at intervals between the insulating partition 2 and the contact connection side 1. In a preferred embodiment of this application, the plurality of reinforcing ribs are distributed on both sides of the insulating partition 2 and are arranged in parallel.

[0042] Furthermore, in another embodiment, two reinforcing ribs are arranged in a strip shape on both sides of the contact connection side 1. The two reinforcing ribs are distributed in a strip shape on both sides of the insulating partition 2, wherein the reinforcing ribs extend along the length direction of the insulating partition 2 to form the strip-shaped reinforcing ribs, i.e. Figure 1 Multiple sheet-like reinforcing ribs on one side are integrally connected to form a long strip-shaped reinforcing rib. This strip-shaped reinforcing rib can give the insulating side plate greater structural strength.

[0043] Preferably, the insulating partition 2, the reinforcing rib, and the switch housing are integrally formed to improve production efficiency.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown in the preferred embodiment of this application, two first limiting parts 42 are provided on both sides of the first fixing part 41, and two second limiting parts 53 are provided on both sides of the second fixing part 52. The two first limiting parts 42 and the two second limiting parts 53 are respectively matched and limited one by one, which helps to produce a more stable limiting effect.

[0045] Preferred, such as Figure 1 and Figure 2 As shown, the first fixing part 41 is a first screw hole, and the second fixing part 52 is a second screw hole. By using a screw to pass through both the first screw hole and the second screw hole and tightening it, a good fixing effect can be achieved, which is convenient for installation and disassembly. At the same time, it also has a good conductivity effect, realizing a stable electrical connection between the terminal block 51 and the stationary contact terminal part 4.

[0046] Furthermore, such as Figure 1 and Figure 2 As shown, the first limiting part 42 and the second limiting part 53 are a limiting post and a limiting hole, respectively. The first limiting part 42 is a limiting post and the second limiting part 53 is a limiting hole; or, the second limiting part 53 is a limiting post and the first limiting part 42 is a limiting hole. The limiting post passes through the limiting hole to achieve the limiting effect, which facilitates disassembly and fixation.

[0047] Preferably, the such Figures 1-2 As shown, the rotary disconnect switch includes a first switching unit 101 and a second switching unit 102. The thickness of the first switching unit 101 is greater than the thickness of the second switching unit 102. The thickness of the moving contact and stationary contact 7 of the first switching unit 101 is greater than the thickness of the moving contact and stationary contact 7 of the second switching unit 102. The first switching unit 101 has a stronger current carrying capacity and breaking capacity than the second switching unit 102, which allows the rotary disconnect switch of this application to have different current carrying capacities and a wider range of application scenarios.

[0048] Furthermore, such as Figures 1-2 As shown in the preferred embodiment of this application, the rotary disconnect switch includes a plurality of first switch units 101 stacked together and a plurality of second switch units 102 stacked together. The plurality of first switch units 101 and the plurality of second switch units 102 can simultaneously connect to and control multiple lines.

[0049] Because the first switching unit 101 has a higher current carrying capacity, in order to enhance the insulation performance of the insulating partition 2, the insulating partition 2 on the switch housing of the first switching unit 101 extends outward by a longer distance, resulting in a weaker structural strength of the insulating partition 2. Therefore, in order to enhance the structural strength of the insulating partition 2 on the first switching unit 101, the structural reinforcement 3 is provided on the switch housing of the first switching unit 101.

[0050] Preferred, such as Figure 1 and Figure 2 As shown, when multiple switch units 100 are stacked, in order to facilitate the installation of the wiring components 5, the wiring components 5 between two adjacent switch units 100 can be installed in a cross arrangement.

[0051] Preferred, such as Figure 3 As shown, the rotary contact assembly 6 has two arc-shaped arc-extinguishing grid groups 8 on both sides. Each arc-extinguishing grid group 8 includes two insulating side plates 81, which clamp multiple stacked metal arc-extinguishing grids 82. A first notch 821 is provided in the middle of each metal arc-extinguishing grid 82. Two grid legs are formed on both sides of the first notch 821. The first notch 821 includes a first arc-extinguishing groove 823 at the entrance and a second arc-extinguishing groove 824 at the bottom. The first and second arc-extinguishing grooves 823 and 824 are connected. The first arc-extinguishing groove 823 has a "V" shape, and the second arc-extinguishing groove 824 has a "U" shape. The structure is shaped and tilted. The adjacent metal arc-extinguishing grids 82 are arranged alternately, so that the second arc-extinguishing grooves 824 of the first notch 821 of the adjacent metal arc-extinguishing grids 82 are tilted in opposite directions. That is, the metal arc-extinguishing grids 82 are installed facing forward, and the other metal arc-extinguishing grids 82 are rotated 180 degrees and installed in the opposite direction, so that the tilting directions of the first notch 821 in the adjacent metal arc-extinguishing grids 82 are opposite. The bottom slopes of the adjacent metal arc-extinguishing grids 82 are staggered, which will form an inwardly concave chamfer in the middle of the two arc-extinguishing grid groups 8. The chamfer formed is more conducive to lengthening the arc to achieve a better arc extinguishing effect.

[0052] like Figures 4-8b As shown, the switching unit 100 of this application also includes at least one insulating spacer 83. The insulating spacer at least blocks the gap between the tails of two adjacent metal arc-extinguishing grid plates 82 away from the first notch 821, which is used to electrically isolate the gaps at the tails of adjacent metal arc-extinguishing grid plates 82. This prevents the arc from rushing out from the gap between two adjacent metal arc-extinguishing grid plates 82 when the rotary disconnecting switch breaks a large current, rushing from the front of the entire arc-extinguishing grid plate group 8 to the rear of the entire arc-extinguishing grid plate group 8 and reconnecting into a long arc, causing the metal arc-extinguishing grid plates 82 to fail to divide the arc, and ultimately leading to arc-extinguishing failure. This application can improve the breaking capacity of the rotary disconnecting switch.

[0053] In one embodiment, such as Figures 4-7b As shown, the arc-extinguishing grid group 8 is disposed within the switch unit 100, and the insulating spacer 83 is integrally formed with the switch housing of the switch unit 100. The insulating spacer 33 extends between two adjacent metal arc-extinguishing grids 82. The insulating spacer 83 is integrally formed with the switch housing of the switch unit 100, reducing the number of parts, facilitating installation, and improving production efficiency. In this preferred embodiment, the switch housing of the switch unit 100 has two integrally formed insulating spacers 83. The two insulating spacers 83 are evenly spaced, roughly dividing the multiple metal arc-extinguishing grids 82 into three groups. Each insulating spacer 83 extends only between the tail gaps of two metal arc-extinguishing grids 82 in one group, which can effectively prevent the arc from connecting into a long arc without affecting the arc-extinguishing effect.

[0054] In another embodiment, such as Figure 8a and Figure 8b As shown, the arc-extinguishing grid plate group 8 is disposed inside the switch unit 100, the insulating spacer 83 is integrally formed with the switch housing of the switch unit 100, and one side of the insulating spacer 83 is attached to the tail of at least two adjacent metal arc-extinguishing grid plates 82.

[0055] Furthermore, in a preferred embodiment, the arc-extinguishing grid assembly 8 includes two insulating spacers 83. The two insulating spacers 83 are evenly spaced and arranged on one side of the tail of the metal arc-extinguishing grid 82 in the arc-extinguishing grid assembly 8. Alternatively, there may be one, three, or more insulating spacers 83. However, having only one insulating spacer 83 may cause the arc to reconnect and grow into a long arc. Or, having three or more insulating spacers 83 may hinder the venting of the arc-extinguishing structure, resulting in a deterioration in the arc-extinguishing effect. The number of insulating spacers 33 needs to be reasonably arranged according to the size of the arc-extinguishing grid assembly 3 and the number of metal arc-extinguishing grids 32 inside the arc-extinguishing grid assembly 3 to ensure that the arc-extinguishing structure can vent properly and prevent the arc from reconnecting and growing into a long arc without reducing the arc-extinguishing performance.

[0056] Furthermore, in the preferred embodiment, each insulating spacer 83 blocks the gap between the tails of two metal arc-extinguishing grid plates 82. Of course, in a less desirable embodiment, each insulating spacer 83 blocks the gap between the tails of three or more metal arc-extinguishing grid plates 82, but this may affect the exhaust of the switching unit 100 and the arc-extinguishing performance.

[0057] Furthermore, such as Figures 4-8b As shown, the insulating side plate 81 includes an outer arc side and an inner arc side. The second notch 811 is provided at one-third position and two-thirds position of the outer arc side, respectively, and the insulating spacer 83 is limited within the second notch 811.

[0058] Preferred, Figure 3 A schematic diagram of the structure of the metal arc-quenching grid 82 in an embodiment of this application is shown, as follows: Figure 3As shown, the width of the opening of the first notch 821 of the metal arc-extinguishing grid 82 is greater than the width of the bottom of the first notch 821. The shape of the first notch 821 is similar to a "V" shape. The first notch 821 includes a first side and a second side opposite to each other. The first side protrudes toward the second side, forming a pointed structure 822 similar to a triangular structure. There is a gap between the pointed structure 822 and the second side. The pointed structure 822 divides the first notch 821 into a first arc-extinguishing groove 823 and a second arc-extinguishing groove 824. The bottom of the first notch 821 is the bottom of the second arc-extinguishing groove 824, and the opening of the first notch 821 is the opening of the first arc-extinguishing groove 823.

[0059] Preferably, the switching unit 100 is provided with a first upper partition and a first lower partition, and the rotating contact assembly 6 and the two arc-extinguishing grid groups 8 are disposed between the first upper partition and the first lower partition. The first upper partition and the first lower partition can clamp and fix the rotating contact assembly 6 and the two arc-extinguishing grid groups 8 along the thickness direction of the switching unit 100 to form an integral arc-extinguishing space, thereby improving the arc-extinguishing performance and enabling arc extinguishing with higher current carrying capacity.

[0060] Furthermore, the first upper partition and the first lower partition are made of insulating gas-generating material. When the moving contact and the two stationary contacts 7 come into contact or separate, an electric arc is generated. The gas generated by the first upper partition and the first lower partition under the high temperature erosion of the electric arc can cool the arc. Simultaneously, the generated gas also propels the arc towards the arc-extinguishing chamber, thereby accelerating arc extinguishing.

[0061] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0062] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A rotary disconnect switch, comprising a switch unit, the switch unit including a switch housing, a rotary contact assembly (6) and a stationary contact (7) disposed within the switch housing, the rotary contact assembly (6) including a moving contact, the rotary contact assembly (6) being rotatably disposed within the switch housing, such that the moving contact contacts or disconnects from the stationary contact (7), characterized in that, The switch housing includes a contact connection side (1), and a stationary contact (7) includes a stationary contact wiring portion (4) extending from the contact connection side (1) to the outside of the switch housing. The contact connection side (1) is bent and connected to the bottom of the switch housing. An insulating partition (2) extends from the bottom of the switch housing to the outside of the contact connection side (1). A structural reinforcement (3) is provided between the insulating partition (2) and the contact connection side (1) to enhance the structural strength of the insulating partition (2).

2. The rotary disconnector according to claim 1, characterized in that, The structural reinforcement (3), the insulating partition (2), and the switch housing are integrally formed. The structural reinforcement (3) includes a reinforcing rib, which is located at the angle between the insulating partition (2) and the contact connection side (1). The reinforcing rib includes a partition connecting part and a side plate connecting part. The partition connecting part is connected to the insulating partition (2), and the side plate connecting part is connected to the contact connection side (1). An inclined slope is connected between the side plate connecting part and the partition connecting part. The angle between the inclined slope and the insulating partition (2) and the contact connection side (1) is an acute angle.

3. The rotary disconnector according to claim 1, characterized in that, The rotary disconnect switch also includes a wiring component (5). The contact connection side (1) includes a stationary contact connection area. The stationary contact wiring part (4) is parallel to the contact connection side (1). The stationary contact connection area corresponds to the stationary contact wiring part (4) of the stationary contact (7). The wiring component (5) is fixedly connected to the stationary contact wiring part (4) through the stationary contact connection area.

4. The rotary disconnector according to claim 3, characterized in that, The stationary contact wiring part (4) is provided with a first fixing part (41), and the wiring component (5) includes a wiring plate (51). The wiring plate (51) includes a second fixing part (52) that cooperates with and is fixed to the first fixing part (41). At least one side of the first fixing part (41) is provided with a first limiting part (42), and at least one side of the second fixing part (52) is provided with a second limiting part (53). The positions of the first limiting part (42) and the second limiting part (53) are correspondingly matched and limited.

5. The rotary disconnector according to claim 4, characterized in that, The first fixing part (41) is located in the middle of the stationary contact wiring part (4), and the second fixing part (52) is located in the middle of the wiring plate (51). Two first limiting parts (42) are provided on both sides of the first fixing part (41), and two second limiting parts (53) are provided on both sides of the second fixing part (52).

6. The rotary disconnector according to claim 4, characterized in that, The first fixing part (41) is a first screw hole, and the second fixing part (52) is a second screw hole. The device is fixed in place by passing a screw through both the first screw hole and the second screw hole. The first limiting part (42) is a limiting post, and the second limiting part (53) is a limiting hole; or, the second limiting part (53) is a limiting post, and the first limiting part (42) is a limiting hole, with the limiting post passing through the limiting hole for limiting.

7. The rotary disconnector according to claim 2, characterized in that, Multiple reinforcing ribs are provided parallel to and spaced apart between the insulating partition (2) and the contact connection side (1), with the multiple reinforcing ribs distributed on both sides of the insulating partition (2); or, two reinforcing ribs are provided in a strip-like arrangement on both sides of the contact connection side (1).

8. The rotary disconnector according to claim 1, characterized in that, The switch unit is provided with an arc-extinguishing grid plate group (8), which includes two insulating side plates (81). Multiple metal arc-extinguishing grid plates (82) are sandwiched between the two insulating side plates (81). Each metal arc-extinguishing grid plate (82) includes a first notch (821). At least one insulating spacer (83) is integrally formed with the switch housing, and the insulating spacer (83) at least blocks the gap between the tail of two adjacent metal arc-extinguishing grid plates (82) away from the first notch (821).

9. The rotary disconnect switch according to claim 1, characterized in that, The rotary disconnect switch includes a first switch unit (101) and a second switch unit (102) stacked together. The thickness of the first switch unit (101) is greater than the thickness of the second switch unit (102). The thickness of the stationary contact (7) of the first switch unit (101) is greater than the thickness of the stationary contact (7) of the second switch unit (102). The structural reinforcement (3) is disposed on the switch housing of the first switch unit (101).

10. The rotary disconnector according to claim 3, characterized in that, The stationary contact connection area is located in the middle of the contact connection side (1), and the structural reinforcement (3) is located on both sides of the stationary contact connection area.

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