Universal isolator auxiliary switch assembly and universal isolator

Abstract

The utility model discloses an auxiliary switch assembly and a universal isolator in the field of low-voltage electrical appliances, and the auxiliary switch assembly comprises an auxiliary switch pressing plate, an auxiliary switch support and an auxiliary switch box assembly, the auxiliary switch support is provided with a front opening and a rear opening, and the auxiliary switch pressing plate is installed in the front opening and can rotate around a shaft to form a seesaw structure; the auxiliary switch box assembly is detachably installed at the rear opening of the auxiliary switch support, a microswitch is installed in the auxiliary switch box assembly, the switch face of the microswitch faces the auxiliary switch pressing plate, and different switch signals are generated when the seesaw moves to different positions. The problem that in the prior art, installation or replacement of an auxiliary switch assembly is complex and difficult is solved, and the beneficial effects of simplifying installation and maintenance and improving efficiency are achieved.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical technology, specifically to a universal isolator auxiliary switch assembly and a universal isolator. Background Technology

[0002] Universal isolators typically require an auxiliary switch to provide electrical output signals indicating whether the main circuit is closed or open. Currently, the auxiliary switches in universal isolators or universal circuit breakers often employ a linkage structure. The installation or replacement process is quite complex due to the need to disassemble and reassemble the linkage, and in some cases, even disassemble the energy storage control unit first. This is especially true in the confined spaces within inverter distribution cabinets at wind farms and photovoltaic sites, where replacement operations are even more difficult. Summary of the Invention

[0003] In view of the shortcomings of the prior art, this application provides a universal isolator auxiliary switch assembly and a universal isolator to solve the problem of complex and difficult installation or replacement of the aforementioned prior art auxiliary switch assemblies.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A universal isolator auxiliary switch assembly includes an auxiliary switch pressure plate, an auxiliary switch bracket, and an auxiliary switch box assembly. The auxiliary switch bracket has front and rear openings. The auxiliary switch pressure plate is installed in the front opening and can rotate around an axis to form a rocker structure. The auxiliary switch box assembly is detachably installed in the rear opening of the auxiliary switch bracket and has a micro switch installed inside. The micro switch has its switching surface facing the auxiliary switch pressure plate and generates different switching signals when the rocker moves to different positions.

[0006] Preferably, the auxiliary switch plate has ear-shaped features extending vertically outward on both sides of the middle of its long side, and the ear-shaped features have shaft holes. The auxiliary switch bracket also has corresponding shaft holes in the middle of its long side. The auxiliary switch bracket rotates and fixes the auxiliary switch plate to the side of the auxiliary switch bracket by passing the shaft of the auxiliary switch plate through the shaft holes on the auxiliary switch bracket and the auxiliary switch plate.

[0007] Preferably, the auxiliary switch pressure plate shaft includes a head and a rod, and the tail of the rod is provided with a retaining spring groove. The auxiliary switch pressure plate shaft is fixed to the shaft hole of the auxiliary switch bracket using the head and a retaining spring installed on the retaining spring groove.

[0008] Preferably, the auxiliary switch box assembly further includes an auxiliary switch box and a micro switch fixing shaft. The auxiliary switch box also has front and rear openings. The long side of the auxiliary switch box and the micro switch have corresponding shaft holes in a direction perpendicular to the long side of the auxiliary switch box. The micro switch fixing shaft passes through the side of the auxiliary switch box, the micro switch and the opposite side of the auxiliary switch box to fix the micro switch inside the auxiliary switch box. The wiring harness of the micro switch is led out from the rear opening of the auxiliary switch box. The two micro switches are arranged along the long side of the auxiliary switch pressure plate. A micro switch button is provided in front of the micro switch facing the auxiliary switch pressure plate. When one end of the auxiliary switch pressure plate presses the micro switch button of one micro switch, the other end releases the micro switch button of the other micro switch.

[0009] Preferably, the micro switch fixing shaft includes a head and a rod, and the tail of the rod is provided with a retaining spring groove. The micro switch fixing shaft is fixed to the shaft hole of the auxiliary switch box using the head and the retaining spring installed on the retaining spring groove.

[0010] Preferably, the short sides of the auxiliary switch bracket are provided with outward flanges, and the flanges of the auxiliary switch bracket are provided with screw holes. The short sides of the auxiliary switch box are also provided with flanges corresponding to the flanges of the auxiliary switch bracket, and the flanges of the auxiliary switch box are also provided with screw holes corresponding to the screw holes on the flanges of the auxiliary switch bracket. The auxiliary switch box is fixed to the auxiliary switch bracket by screws passing through the side of the auxiliary switch box.

[0011] Preferably, the micro switch is further provided with more than one set of micro switches along the short side of the auxiliary switch pressure plate.

[0012] Preferably, the auxiliary switch bracket has a bent leg that extends forward and bends outward on its long side, and the bent leg has screw holes.

[0013] Based on the same inventive concept, this application also discloses a universal isolator, including an isolator front base, an operating mechanism cantilever that rotates around an axis at the rear of the isolator front base, and the aforementioned universal isolator auxiliary switch assembly. The universal isolator auxiliary switch assembly is mounted on the isolator front base from the front via an auxiliary switch bracket. During the isolator closing and opening process, the operating mechanism cantilever rotates so that its two sides contact and push the auxiliary switch pressure plate to rotate. The two sides of the auxiliary switch pressure plate press or release microswitches to generate a switching signal.

[0014] Preferably, the front base of the isolator is provided with screw holes corresponding to the screw holes on the bent foot of the auxiliary switch bracket on the aforementioned universal isolator auxiliary switch assembly, and the isolator auxiliary switch assembly is fixed to the front base of the isolator by auxiliary switch fixing screws passing through the outside of the bent foot of the auxiliary switch bracket.

[0015] Compared to existing technologies, this solution offers the following advantages: By replacing the linkage structure with a rocker structure and incorporating a detachable auxiliary switch bracket and box, a modular auxiliary switch structure is created, simplifying installation and replacement. During installation or replacement, no other components on the isolator are required, making the process extremely straightforward. This achieves the beneficial effects of simplified installation and maintenance, and improved efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional exploded view of an embodiment of this application;

[0017] Figure 2 This is a three-dimensional structural diagram of a modular installation according to an embodiment of this application, showing one perspective.

[0018] Figure 3 This is a three-dimensional structural diagram of a modular installation according to an embodiment of this application, from another perspective.

[0019] Figure 4 A three-dimensional structural diagram showing the assembled structure from one perspective according to an embodiment of this application;

[0020] Figure 5 A three-dimensional structural schematic diagram of an embodiment of this application assembled from another perspective;

[0021] Figure 6 This is a schematic diagram of the longitudinal centerline cross-sectional structure of an embodiment of this application after assembly;

[0022] Figure 7 This is a three-dimensional structural diagram of an embodiment of the present application assembled onto the front base of the isolator;

[0023] Figure 8 This is a three-dimensional structural diagram of an embodiment of the present application, showing the assembly completed with the isolator front base;

[0024] Figure 9 This is a longitudinal centerline cross-sectional view of an embodiment of the present application, showing the assembly of the device onto the front base of the isolator.

[0025] Among them, 1-Auxiliary switch assembly, 11-Auxiliary switch bracket assembly, 111-Auxiliary switch bracket, 112-Auxiliary switch pressure plate shaft, 113-Auxiliary switch pressure plate, 12-Auxiliary switch box assembly, 121-Micro switch fixing shaft, 122-Auxiliary switch box, 123-Micro switch, 1231-Micro switch button, 13-Snap ring, 14-Micro switch box fixing screw, 2-Isolator front base, 3-Operating mechanism cantilever, 4-Auxiliary switch fixing screw. Detailed Implementation

[0026] The technical solutions in 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.

[0027] This embodiment provides a universal isolator auxiliary switch assembly, including an auxiliary switch pressure plate 113, an auxiliary switch bracket 111, and an auxiliary switch box assembly 12. The auxiliary switch bracket 111 has front and rear openings. The auxiliary switch pressure plate 113 is installed in the front opening and can rotate around an axis to form a rocker structure. The auxiliary switch box assembly 12 is detachably installed in the rear opening of the auxiliary switch bracket 111 and has a micro switch 123 installed inside it. The switching surface of the micro switch 123 faces the auxiliary switch pressure plate 113 and generates different switching signals when the rocker moves to different positions.

[0028] In this embodiment, the auxiliary switch plate 113 has ear-shaped features extending vertically outward on both sides of the middle of its long side. These ear-shaped features have shaft holes. The auxiliary switch bracket 111 also has a corresponding shaft hole in the middle of its long side. The auxiliary switch bracket 111 is rotatably fixed to the side of the auxiliary switch plate 113 by the auxiliary switch plate shaft 112 passing through the shaft holes on both the auxiliary switch bracket 111 and the auxiliary switch plate 113. Besides this embodiment, other suitable methods can also be used to rotatably fix the auxiliary switch plate 113.

[0029] There are various ways to fix the shaft, such as using screws or rivets at the tail. In order to make the installation and disassembly of the auxiliary switch plate 113 more convenient, the auxiliary switch plate shaft 112 in this embodiment includes a head and a rod. The tail of the rod is provided with a snap ring groove. The auxiliary switch plate shaft 112 is fixed to the shaft hole of the auxiliary switch bracket 111 by the head and the snap ring 13 installed on the snap ring groove.

[0030] There are various ways to configure the auxiliary switch box assembly 12. In this embodiment, the auxiliary switch box assembly 12 also includes an auxiliary switch box 122 and a micro switch fixing shaft 121. The auxiliary switch box 122 is also provided with front and rear openings. The long side of the auxiliary switch box 122 and the micro switch 123 have corresponding shaft holes in a direction perpendicular to the long side of the auxiliary switch box 122. The micro switch fixing shaft 121 passes through the side of the auxiliary switch box 122, the micro switch 123, and the opposite side of the auxiliary switch box 122 to fix the micro switch 123. The wiring harness of the micro switch 123 is led out from the rear opening of the auxiliary switch box 122 and is fixed inside the auxiliary switch box 122. The two micro switches 123 are arranged along the long side of the auxiliary switch pressure plate 113, i.e., arranged vertically as shown in the attached figure. A micro switch button 1231 is provided in front of the micro switch 123 facing the auxiliary switch pressure plate 113. When one end of the auxiliary switch pressure plate 113 presses the micro switch button 1231 of one micro switch 123, the other end releases the micro switch button 1231 of the other micro switch 123. The micro switch fixing shaft 121 is designed like the auxiliary switch pressure plate shaft 112, including a head and a rod. The tail of the rod is provided with a retaining spring groove. The micro switch fixing shaft 121 is fixed to the shaft hole of the auxiliary switch box 122 by the head and the retaining spring 13 installed in the retaining spring groove.

[0031] Regarding the detachable design of the two components, other methods such as clip-on fixing can be used. This embodiment uses the more common screw fixing method. The short side of the auxiliary switch bracket 111 is provided with outward flanges, and the flanges of the auxiliary switch bracket 111 are provided with screw holes. The short side of the auxiliary switch box 122 is also provided with flanges corresponding to the flanges of the auxiliary switch bracket 111, and the flanges of the auxiliary switch box 122 are also provided with screw holes corresponding to the screw holes on the flanges of the auxiliary switch bracket 111. The auxiliary switch box 122 is fixed to the auxiliary switch bracket 111 by screws 14 passing through the auxiliary switch box 122. The screw holes on the auxiliary switch bracket 111 can be internally threaded, which can eliminate the need for nuts for screw fixing.

[0032] In this embodiment, the micro switch 123 is also provided with two sets of micro switches 123 along the short side of the auxiliary switch plate 113, thereby forming two sets of micro switches 123 in the vertical direction and two sets of micro switches 123 in the horizontal direction, which can generate the same multi-channel signal to different devices.

[0033] There are various ways to install the auxiliary switch bracket 111 onto the isolator. This embodiment also adopts the more common screw fixing method, that is, the long side of the auxiliary switch bracket 111 extends forward and bends outward with a bent foot, and the bent foot has screw holes.

[0034] During installation, the auxiliary switch plate 113 is placed inside the auxiliary switch bracket 111, with the shaft hole on the auxiliary switch plate 113 aligned with the shaft hole on the auxiliary switch bracket 111. The auxiliary switch plate shaft 112 is then passed sequentially through the holes on the auxiliary switch bracket 111 and the auxiliary switch plate 113, and secured with a retaining ring 13. The auxiliary switch plate 113 can rotate freely within the auxiliary switch bracket 111 around the auxiliary switch plate shaft 112. The auxiliary switch bracket 111, auxiliary switch plate shaft 112, auxiliary switch plate 113, and retaining ring 13 constitute the auxiliary switch bracket assembly 11.

[0035] The micro switch 123 is placed inside the auxiliary switch box 122, with the shaft hole on the micro switch 123 aligned with the shaft hole on the auxiliary switch box 122. The micro switch fixing shaft 121 is then passed through the holes on the auxiliary switch box 122 and the micro switch 123 in sequence, and the micro switch fixing shaft 121 is fixed with a retaining ring 13. The micro switch fixing shaft 121, the auxiliary switch box 122, the micro switch 123, and the retaining ring 13 constitute the auxiliary switch box assembly 12.

[0036] The micro switch box fixing screw 14 is passed through the hole on the auxiliary switch box 122 and fixed to the auxiliary switch bracket 111. The auxiliary switch bracket assembly 11 and the auxiliary switch box assembly 12 are fixed together to form the auxiliary switch assembly 1.

[0037] In use, the micro switch button 1231 is pressed down by the auxiliary switch plate 113, and the state of the micro switch 123 is switched after being pressed down. Under normal circumstances, the micro switch button 1231 is in the pop-up state.

[0038] Based on the same inventing company, this application also discloses a universal isolator, including the aforementioned universal isolator auxiliary switch assembly 1 and isolator front base 2. The isolator front base 2 is provided with an operating mechanism cantilever 3 that rotates around an axis at the rear. The universal isolator auxiliary switch assembly 1 is mounted on the isolator front base 2 from the front through an auxiliary switch bracket 111. During the isolator closing and opening process, the operating mechanism cantilever 3 rotates so that its two sides contact and push the auxiliary switch pressure plate 113 to rotate. The auxiliary switch pressure plate 113 presses or releases the micro switch 123 on both sides to generate a switching signal.

[0039] Figure 6 When the isolator is in the open position, the operating mechanism arm 3 strikes the auxiliary switch plate 113, which in turn presses the micro switch button 1231, switching the state of the micro switch 123. Conversely, when the isolator is in the closed position, the other end of the operating mechanism arm 3 strikes the auxiliary switch plate 113, which in turn presses another set of micro switches 123.

[0040] The isolator front base 2 is provided with screw holes corresponding to the screw holes on the bent foot of the auxiliary switch bracket 111 on the aforementioned universal isolator auxiliary switch assembly 1. During installation, the isolator auxiliary switch assembly 1 is fixed to the isolator front base 2 by auxiliary switch fixing screws 4 that pass through the outside of the bent foot of the auxiliary switch bracket 111.

[0041] If the micro switch 123 is damaged, the auxiliary switch box assembly 12 can be removed by simply unscrewing the micro switch box fixing screw 14.

[0042] In the description of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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 on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] The above description is only a preferred embodiment of the present solution, but the scope of protection claimed by the present solution is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present solution, based on the technical solution and inventive concept of the present application, should be included within the scope of protection of the present application.

Claims

1. A universal isolator auxiliary switch assembly, characterized in that: The system includes an auxiliary switch plate (113), an auxiliary switch bracket (111), and an auxiliary switch box assembly (12). The auxiliary switch bracket (111) has front and rear openings. The auxiliary switch plate (113) is installed in the front opening and can rotate around an axis to form a rocker structure. The auxiliary switch box assembly (12) is detachably installed in the rear opening of the auxiliary switch bracket (111) and has a micro switch (123) installed inside. The micro switch (123) has its switching surface facing the auxiliary switch plate (113) and generates different switching signals when the rocker moves to different positions.

2. The universal isolator auxiliary switch assembly according to claim 1, characterized in that: The auxiliary switch plate (113) has ear-shaped features extending vertically outward on both sides of the middle of its long side. The ear-shaped features have shaft holes. The auxiliary switch bracket (111) also has corresponding shaft holes in the middle of its long side. The auxiliary switch bracket (111) is rotated and fixed to the side of the auxiliary switch bracket (113) by the auxiliary switch plate shaft (112) passing through the shaft holes on the auxiliary switch bracket (111) and the auxiliary switch plate (113).

3. The universal isolator auxiliary switch assembly according to claim 2, characterized in that: The auxiliary switch pressure plate shaft (112) includes a head and a rod. The tail of the rod is provided with a snap ring groove. The auxiliary switch pressure plate shaft (112) is fixed to the shaft hole of the auxiliary switch bracket (111) using the head and a snap ring (13) installed on the snap ring groove.

4. The universal isolator auxiliary switch assembly according to claim 1, characterized in that: The auxiliary switch box assembly (12) also includes an auxiliary switch box (122) and a micro switch fixing shaft (121). The auxiliary switch box (122) is also provided with front and rear openings. The long side of the auxiliary switch box (122) and the micro switch (123) are provided with corresponding shaft holes in a direction perpendicular to the long side of the auxiliary switch box (122). The micro switch fixing shaft (121) passes through the side of the auxiliary switch box (122), the micro switch (123), and the opposite side of the auxiliary switch box (122) to fix the micro switch (123) to the auxiliary switch box (122). Inside 122), the wiring harness of the micro switch (123) is led out from the rear opening of the auxiliary switch box (122). The two micro switches (123) are arranged along the long side of the auxiliary switch pressure plate (113). A micro switch button (1231) is provided in front of the micro switch (123) facing the auxiliary switch pressure plate (113). When one end of the auxiliary switch pressure plate (113) presses the micro switch button (1231) of one micro switch (123), the other end releases the micro switch button (1231) of the other micro switch (123).

5. The universal isolator auxiliary switch assembly according to claim 4, characterized in that: The micro switch fixing shaft (121) includes a head and a rod. The tail of the rod is provided with a snap ring groove. The micro switch fixing shaft (121) is fixed to the shaft hole of the auxiliary switch box (122) using the head and the snap ring (13) installed on the snap ring groove.

6. The universal isolator auxiliary switch assembly according to claim 4, characterized in that: The auxiliary switch bracket (111) has outward flanges on its short sides. The flanges of the auxiliary switch bracket (111) have screw holes. The auxiliary switch box (122) also has flanges on its short sides that correspond to the flanges of the auxiliary switch bracket (111). The flanges of the auxiliary switch box (122) also have screw holes that correspond to the screw holes on the flanges of the auxiliary switch bracket (111). The auxiliary switch box (122) is fixed to the auxiliary switch bracket (111) by screws (14) passing through the auxiliary switch box (122).

7. The universal isolator auxiliary switch assembly according to claim 6, characterized in that: The micro switch (123) is also provided with more than one set of micro switches (123) along the short side of the auxiliary switch plate (113).

8. The universal isolator auxiliary switch assembly according to claim 1, characterized in that: The auxiliary switch bracket (111) has a bent leg that extends forward and bends outward on its long side, and the bent leg has a screw hole.

9. A universal isolator, comprising an isolator front base (2), wherein a cantilever (3) of an operating mechanism that rotates about an axis is provided at the rear of the isolator front base (2), characterized in that: It also includes a universal isolator auxiliary switch assembly (1) as described in any one of claims 1 to 8, wherein the universal isolator auxiliary switch assembly (1) is mounted on the front base (2) of the isolator from the front via an auxiliary switch bracket (111). During the closing and opening of the isolator, the operating mechanism cantilever (3) rotates so that its two sides contact and push the auxiliary switch pressure plate (113) to rotate. The auxiliary switch pressure plate (113) presses or releases the micro switch (123) on both sides to generate a switching signal.

10. The universal isolator according to claim 9, characterized in that: The isolator front base (2) is provided with screw holes corresponding to the screw holes on the bent foot of the auxiliary switch bracket (111) of the universal isolator auxiliary switch assembly (1) according to claim 8. The isolator auxiliary switch assembly (1) is fixed to the isolator front base (2) by auxiliary switch fixing screws (4) passing through the outside of the bent foot of the auxiliary switch bracket (111).

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