Indicating device and mounting structure of isolating switch

Abstract

The indicating device comprises an indicating window matched with the disconnecting switch, the disconnecting switch comprises an operating mechanism and a switch body driven by the operating mechanism, a moving contact assembly is arranged in the switch body, a window is formed in one end, far away from the operating mechanism, of the switch body, and the operating mechanism is arranged in the window. A part of the area of the moving contact assembly serves as an indicating part to be displayed from the window, the indicating window covers one end of the switch body far away from the operating mechanism, the indicating area of the indicating window corresponds to the window, and the opening and closing state is indicated through the relative position between the indicating part and the indicating area. According to the utility model, the original partial area on the moving contact assembly is used as the indicating part to cooperate with the indicating window to indicate the opening and closing states, the structure is simple, and the accuracy of state indication is high.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, in particular to an installation structure of an indicating device and an isolating switch. Background Art

[0002] At present, rotary isolating switches are widely used in the photovoltaic field. The isolating switches are composed of an upper operating mechanism and a lower switch body. The switch body can be stacked with multiple layers of switch units according to actual needs. Usually, the rotation of the contacts of the switch body is driven by the torque transmitted layer by layer by the operating mechanism. When the number of switch units increases, the stiffness requirement of the transmission shaft for transmitting torque between layers is higher. In this way, as the distance between the operating mechanism increases, the opening and closing state of the switch unit gradually becomes unreliable and not easy to detect in time. Summary of the invention

[0003] The utility model aims to overcome at least one defect of the prior art and provide an indicating device and an installation structure of an isolating switch, so as to facilitate observation of the opening and closing states of the isolating switch.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides an indicating device, comprising an indicating window matched with an isolating switch, the isolating switch comprising an operating mechanism and a switch body driven by the operating mechanism, a moving contact assembly is arranged inside the switch body, a window is provided at one end of the switch body away from the operating mechanism, a partial area of ​​the moving contact assembly is displayed from the window as an indicating portion, the indicating window cover is arranged at one end of the switch body away from the operating mechanism, an indicating area of ​​the indicating window corresponds to the window, and the opening and closing state is indicated by the relative position between the indicating portion and the indicating area.

[0006] Furthermore, the indicating area is provided with a mark, the window corresponds to the axial position of the moving contact assembly, the indicating portion is an eccentric structure on the moving contact assembly, and the indicating portion and the mark cooperate to indicate the opening and closing state of the moving contact assembly.

[0007] Furthermore, the indication window is fixedly engaged with the switch body, the indication area is a transparent area, and the edge of the indication area is sealedly connected with the edge of the window.

[0008] Furthermore, the indication window includes a circular indication area, and the indication area extends outwards on two opposite sides to form a connecting arm. One end of each connecting arm away from the indication area bends and extends to the same side to form a fixing portion, and the fixing portion is connected to the switch body.

[0009] Furthermore, a mounting groove is provided on the outer surface of the isolating switch, and the fixing portion extends into the mounting groove away from the operating mechanism.

[0010] Furthermore, a circular boss is protruding from one side of the moving contact assembly facing the window, and a notch groove serving as an indicator is formed on the circumferential side wall of the circular boss.

[0011] Furthermore, the switch body is provided with a closing mark and / or an opening mark, and the closing mark and the opening mark correspond to the outside of the indication area.

[0012] Furthermore, the indication window is made of transparent material.

[0013] The utility model also provides an installation structure for an isolating switch, comprising the indicating device as described above, and also comprising a bracket cooperating with the isolating switch, the bracket comprising a connecting portion and a supporting portion connected to each other, the connecting portion extending along the direction from the switch body to the operating mechanism, the supporting portion extending along a side of the operating mechanism facing away from the cabinet panel, and the supporting portion being used to install the isolating switch on the cabinet panel.

[0014] Preferably, an outer surface of the isolating switch is provided with a mounting groove for arranging the connecting portion, at least one side wall of the mounting groove is provided with a sliding groove, and at least one edge of the connecting portion is inserted into the sliding groove.

[0015] Preferably, a protruding limiting portion is provided at one end of the connecting portion close to the operating mechanism, and the limiting portion is plugged and limited with a limiting slot provided on a side of the operating mechanism facing away from the cabinet panel.

[0016] The indicating device of the utility model uses the original part of the area on the moving contact assembly as the indicating part to cooperate with the indicating window to indicate the opening and closing state, and has a simple structure and high accuracy of state indication.

[0017] In addition, the window corresponds to the axial position of the moving contact assembly. The original eccentric structure on the moving contact assembly cooperates with the mark of the indication area. By reducing the window, the display area is reduced, which helps to reduce the impact on the inside of the switch unit.

[0018] In addition, the indicator window is snap-connected with the switch body, and in particular, the indicator area is a transparent area that can seal the window, which ensures the sealing of the switch body and facilitates disassembly.

[0019] The mounting structure of the isolating switch of the utility model is that the bracket fixes the isolating switch on the cabinet surface, and in particular, the bracket is also provided with a limiting part, which is plugged into the limiting slot of the operating mechanism, thereby improving the matching stability between the bracket and the operating mechanism and facilitating limiting the operating mechanism between the bracket and the cabinet panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the isolating switch, indicating device and cabinet panel in the utility model;

[0021] Figure 2 It is a side view of the isolating switch and the cabinet panel in the utility model;

[0022] Figure 3 It is a structural schematic diagram of a switch unit provided with a window in the utility model (without an indication window);

[0023] Figure 4 It is a structural schematic diagram of the switch unit body shell in the utility model (without the indicator window);

[0024] Figure 5 It is a schematic diagram of the cooperation between the indicator window and the switch unit in the utility model (the indicator window is made of transparent material);

[0025] Figure 6 It is a structural schematic diagram of the moving contact assembly in the utility model;

[0026] Figure 7 It is a structural schematic diagram of the indicating window in the utility model;

[0027] Figure 8 This is the main view of the indicator window in the utility model;

[0028] Fig. 9 It is a schematic diagram of the structure of the cabinet panel, threaded column and nut in the utility model;

[0029] Fig.10 It is a structural schematic diagram of the bracket in the utility model;

[0030] Reference numerals:

[0031] 1-cabinet panel, 2-operating mechanism, 21-threaded column, 22-nut, 3-switch body, 31-switch unit, 311-moving contact assembly, 311a-circular boss, 311b-radial groove, 311c-notch groove, 311d-indicator line, 312-window, 314-closing mark, 315-opening mark, 4-bracket, 41-connecting part, 411-folding edge, 412-limiting part, 42-supporting part, 421-first supporting wall, 422-second supporting wall, 423-avoidance notch, 5-indicator window, 51-indicator area, 52-connecting arm, 53-fixing part, 54-slot, 55-mark, 551-closing mark, 552-opening mark, 6-mounting hole. DETAILED DESCRIPTION

[0032] The following is a further description of the specific implementation of the indicating device and the installation structure of the isolating switch of the utility model in combination with the embodiments given in the accompanying drawings. The indicating device and the installation structure of the isolating switch of the utility model are not limited to the description of the following embodiments.

[0033] like Figure 1 , 2 As shown, the isolating switch includes an operating mechanism 2 and a switch body 3. The operating mechanism 2 is arranged on one side of the switch body 3 and drives the switch body 3 to open and close. The switch body 3 includes at least one switch unit 31. When the number of switch units 31 is two or more, two adjacent switch units 31 are stacked. Each switch unit 31 includes at least a contact mechanism. The contact mechanism includes a moving contact assembly 311 and a static contact that cooperate with each other. The operating mechanism 2 is at least drivingly connected to the moving contact assembly 311 of the adjacent switch unit 31. The two adjacent moving contact assemblies 311 are linked and connected. The operating mechanism 2 drives the moving contact assembly 311 to rotate around the central axis of the isolating switch, thereby realizing the opening and closing of the contact mechanism.

[0034] like Figure 1-6 As shown, the improvement of the present application is that an indicating device is arranged outside the isolating switch, and the indicating device comprises an indicating window 5 cooperating with the isolating switch, the isolating switch comprises an operating mechanism 2 and a switch body 3 driven by the operating mechanism 2, a moving contact assembly 311 is arranged inside the switch body 3, a window 312 is provided at one end of the switch body 3 away from the operating mechanism 2, a partial area of ​​the moving contact assembly 311 is displayed from the window 312 as an indicating portion, the indicating window 5 is covered at one end of the switch body 3 away from the operating mechanism 2, an indicating area 51 of the indicating window 5 corresponds to the window 312, and the opening and closing state is indicated by the relative position between the indicating portion and the indicating area 51.

[0035] In this way, the original part of the area on the moving contact assembly is used as the indicator part to cooperate with the indicator window to indicate the opening and closing state, and its structure is simple and the accuracy of the state indication is high. The indicator window 5 is an accessory of the matching isolating switch, and after determining how many switch units 31 are set on the switch body 3 according to needs, it is clamped on the last switch unit 31.

[0036] Further, such as Figure 3 , 6 As shown, the window 312 corresponds to the axial position of the moving contact assembly 311, and the indication area 51 is provided with a mark 55, the mark 55 is a closing mark 551 and / or an opening mark 552, and the indicating part is the original eccentric structure on the moving contact assembly 311, and the indicating part and the mark 55 cooperate to indicate the opening and closing status of the moving contact assembly 311.

[0037] Specifically, the indicator portion is an identifiable part on the moving contact assembly 311, and the indicator portion deviates from the axial position of the moving contact assembly 311. The indicator portion can be one or more, and the opening and closing position of the moving contact assembly 311 is determined according to the relative position of the indicator portion and the mark 55; preferably, when there are two indicator portions, the connecting line between the two indicator portions can be used as the indicator line 311d, and the indicator line 311d passes through the axial center of the moving contact assembly 311, and its opening and closing state is determined by the relative position of the indicator line 311d and the mark 55. It should be noted that the indicator line 311d in this embodiment does not exist on the moving contact assembly 311, but is only a virtual line formed by connecting the two indicator portions. Of course, an indicator line can also be drawn. In addition, a linear area passing through the center of a circle such as a strip groove or a strip protrusion provided on the moving contact assembly 311 can also be used as the indicator line 311d.

[0038] Preferably, the switch body 3 may also be provided with an opening mark 315 and / or a closing mark 314 to assist in indicating the opening and closing states of the moving contact assembly 311 .

[0039] Furthermore, the indication window 5 is fixedly connected to the switch body 3 for easy disassembly and assembly. Preferably, the indication area 51 is a transparent area. The indication window 5 can be made of a transparent material as a whole or only partially. Furthermore, the edge of the indication area 51 is sealed with the edge of the window 312, thereby ensuring the sealing inside the switch body 3. Of course, as other embodiments, the indication area 51 can also be a structure such as an indication hole.

[0040] Combination Figure 1-10 A specific embodiment of an isolating switch is provided.

[0041] like Figure 1 , 2 As shown, the isolating switch includes an operating mechanism 2 and a switch body 3, the switch body 3 includes a plurality of stacked switch units 31, each switch unit 31 is provided with a contact mechanism inside, the contact mechanism includes a moving contact assembly 311 and a static contact, the moving contact assemblies 311 of two adjacent switch units 31 are linked and connected, preferably, each switch unit includes a unit housing, a contact mechanism is provided inside the unit housing, and under the drive of the operating mechanism 2, each moving contact assembly 311 correspondingly rotates in a circle inside the switch unit 31.

[0042] like Figure 2 , 9As shown, the operating mechanism 2 generally includes a threaded column 21, the central axis of the threaded column 21 is parallel to the central axis of the isolating switch, the first end of the threaded column 21 is directly or indirectly drivingly connected to the moving contact assembly 311 of the adjacent switch unit 31, and the second end of the threaded column 21 extends out of the operating mechanism 2 in a direction away from the switch body 3. Generally, the isolating switch is arranged in a cabinet, and the second end of the threaded column 21 passes through the cabinet panel 1 of the cabinet, and a nut 22 is sleeved on the outer side of the second end of the threaded column 21, thereby limiting the axial movement of the isolating switch along the threaded column 21.

[0043] like Figure 1-5 As shown, a window 312 is provided at one end of the switch body away from the operating mechanism 2. In this embodiment, the window 312 is located on a switch unit 31 away from the operating mechanism 2, and the window 312 corresponds to the axial position of the moving contact assembly 311. The window 312 is provided on the unit housing away from the operating mechanism 2, and its shape is circular. The original eccentric structure on the moving contact assembly 311 is selected as the indicator. In this embodiment, as shown in FIG. Figure 3 , 6 As shown, the moving contact assembly 311 adopts the existing technology, and a circular boss 311a is protruded on the side of the moving contact assembly 311 facing the window 312, and a radial groove 311b is provided in the middle of the circular boss 311a. A plurality of notched grooves 311c are opened on the circumferential side wall of the circular boss 311a, and two of the notched grooves 311c are selected as indicating parts, and the connecting line between the two indicating parts is used as the indicating line 311d. The indicating line 311d passes through the axis of the moving contact assembly 311. Of course, the central axis of the radial groove 311b can also be used as the indicating line 311d.

[0044] like Figure 1 , 5 As shown in , 7 and 8, the indication window 5 is made of a transparent material, and includes a circular indication area 51. The circular indication area 51 matches the size of the window 312 opened in the switch body 3. The edge of the indication area 51 is sealed with the edge of the window 312, and the window 312 is sealed by the indication area 51, so as to ensure the sealing of the switch body 3; the two opposite sides of the indication area 51 extend outward to form a connecting arm 52, and the central axes of the two connecting arms 52 are collinear with a certain diameter of the circular indication area 51, that is, the central axes of the two connecting arms 52 pass through the center of the circular indication area 51. One end of each connecting arm 52 away from the indication area 51 is bent and extended to the same side to form a fixing portion 53. At this time, the connecting arm 52 is L-shaped as a whole, and is connected to the switch body 3 by the fixing portion 53. Figure 6 In the embodiment, the fixing portion 53 is provided with a card slot 54 , and correspondingly, a buckle that cooperates with the card slot 54 is provided on the outer surface of the switch body 3 , and convenient disassembly is achieved through the cooperation between the buckle and the card slot 54 .

[0045] Furthermore, the outer wall of the isolating switch is provided with a mounting groove, which extends from the switch body 3 to the operating mechanism 2. In this embodiment, the fixing portion 53 can extend to the end of the mounting groove away from the operating mechanism 2, and correspondingly, the buckle is also arranged in the mounting groove to save space. Of course, the fixing portion 53 can also be connected to the switch body 3 in other ways, such as the fixing portion 53 and the switch body 3 are connected together by bonding, screwing, etc.

[0046] As another structure of the indication window 5 (not shown), the indication window 5 may include only the indication area 51, which is a transparent area. The edge of the indication area 51 is sealed to the edge of the window 312. In this way, the connecting arm 52 and the fixing part 53 may be omitted, which is beneficial to saving materials and reducing costs. However, there may be a defect of inconvenient disassembly.

[0047] like Figure 5 , 7 As shown, a closing mark 551 is provided in the indication area 51. When the indication line 311d coincides with the closing mark 551, it indicates closing. Or, when the indication line 311d rotates beyond the closing mark 551 and the more it exceeds, the better the closing. At this time, the closing mark 551 represents the lower limit position of closing.

[0048] like Figure 8 As shown, the indication area 51 is also provided with an opening mark 552. When the indication line 311d coincides with the opening mark 552, it indicates that the switch is in the opening position. Furthermore, corresponding closing marks 314 and / or opening marks 315 may also be provided on the switch body 3. Preferably, the positions thereof are arranged around the outside of the window 312. Of course, they may also be arranged directly around the outside of the indication area 51.

[0049] Furthermore, the isolating switch of this embodiment also includes a bracket 4, which is connected to the outer wall of the isolating switch and is used to install the isolating switch on the cabinet panel 1. The bracket 4 includes a connecting portion 41 and a supporting portion 42 that are connected to each other. The connecting portion 41 extends along the direction from the switch body 3 to the operating mechanism 2, and the supporting portion 42 extends along the side of the operating mechanism 2 facing away from the cabinet panel 1, so that the supporting portion 42, the operating mechanism 2 and the cabinet panel 1 are fixed together.

[0050] like Figure 1-3As shown in FIG. 10 , the bracket 4 includes a connecting portion 41 and a supporting portion 42 that are connected to each other. The supporting portion 42 is located on one side of the connecting portion 41 so that the bracket 4 is in an L-shaped structure as a whole. The connecting portion 41 includes a strip-shaped connecting plate, and the two side edges of the connecting plate are first bent to the same side and then extended outward in opposite directions to form two folded edges 411. At this time, the connecting portion 41 is approximately a U-shaped groove with folded edges 411 on both sides. The mounting groove opened on the outer surface of the isolating switch is used to set the connecting portion 41. A sliding groove is opened on the two side walls of the mounting groove, and each folded edge 411 of the connecting portion 41 is respectively plugged into a sliding groove; a convex edge serving as a limiting portion 412 is formed by extending outward from the edge of one end of the connecting plate. When the bracket 4 is set in the mounting groove, the limiting portion 412 extends from one end of the mounting groove close to the operating mechanism 2 and is plugged into the limiting slot on the operating mechanism 2. Preferably, the limiting portion 412 has a certain width and length, which is conducive to improving the connection stability with the limiting slot. The corners of the limiting portion 412 are rounded, which is conducive to plugging and matching with the limiting slot.

[0051] like Figure 1-3 As shown in FIG. 10 , the support portion 42 includes a first support wall 421 and a second support wall 422 connected to each other. The plane where the first support wall 421 is located is parallel to the connecting plate. Preferably, the first support wall 421 is formed by extending the folded edge 411 near the end position outward. The first support wall 421 is provided with an avoidance notch 423. Figure 1-3 In and 10, the avoidance gap 423 is located in an area away from the connecting portion 41. When a protrusion is provided on the outer surface of the operating mechanism 2, the protrusion can be correspondingly inserted into the avoidance gap 423, and the shape of the avoidance gap 423 preferably matches the outer contour of the protrusion; the second support wall 422 is connected to the first support wall 421 at an angle, and the angle range between the second support wall 422 and the first support wall 421 can depend on the outer surface structure of the operating mechanism 2. In this embodiment, the first support wall 421 and the second support wall 422 are perpendicular to each other, and the first support wall 421 and the second support wall 422 can be integrally formed, and the second support wall 422 is arranged along the side of the operating mechanism 2 facing away from the cabinet panel 1. The second support wall 422, the operating mechanism 2 and the cabinet panel 1 are correspondingly provided with mounting holes 6, and by arranging fasteners in the mounting holes 6, the bracket 4, the isolating switch and the cabinet panel 1 are fixedly connected together.

[0052] In this embodiment, the brackets 4 are arranged in pairs on opposite sides of the isolating switch, thereby ensuring that the isolating switch is stably connected to the cabinet panel 1. Figure 3 As shown, a matching hole is provided in the middle of the cabinet panel 1, and the second end of the threaded column 21 passes through the matching hole. The outer diameter of the nut 22 is larger than the outer diameter of the matching hole. The nut 22 is sleeved on the outer side of the second end of the threaded column 21 to limit the disconnector from falling off from the matching hole. A mounting hole 6 is respectively provided on both sides of the matching hole, and each bracket 4 is respectively connected to a mounting hole 6.

[0053] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0054] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An indicating device, comprising an indicating window (5) cooperating with an isolating switch, wherein the isolating switch comprises an operating mechanism (2) and a switch body (3) driven by the operating mechanism (2), wherein a moving contact assembly (311) is provided inside the switch body (3), characterized in that: A window (312) is provided at one end of the switch body (3) away from the operating mechanism (2); a partial area of ​​the moving contact assembly (311) is displayed from the window (312) as an indicating portion; the indicating window (5) is covered at one end of the switch body (3) away from the operating mechanism (2); an indicating area (51) of the indicating window (5) corresponds to the window (312); and the opening and closing state is indicated by the relative position between the indicating portion and the indicating area (51).

2. The indicating device according to claim 1, characterized in that: The indicating area (51) is provided with a mark (55), the window (312) corresponds to the axial center position of the moving contact assembly (311), the indicating portion is an eccentric structure on the moving contact assembly (311), and the indicating portion cooperates with the mark (55) to indicate the opening and closing state of the moving contact assembly (311).

3. The indicating device according to claim 1, characterized in that: The indication window (5) is fixedly connected to the switch body (3), the indication area (51) is a transparent area, and the edge of the indication area (51) is sealedly connected to the edge of the window (312).

4. The indicating device according to claim 1, characterized in that: The indicating window (5) comprises a circular indicating area (51), and the indicating area (51) extends outwards on opposite sides to form a connecting arm (52), and one end of each connecting arm (52) away from the indicating area (51) is bent and extended toward the same side to form a fixing portion (53), and the fixing portion (53) is connected to the switch body (3); the outer surface of the isolating switch is provided with a mounting groove, and the fixing portion (53) extends into the mounting groove away from the operating mechanism (2).

5. The indicating device according to claim 1, characterized in that: A circular boss (311a) is protrudingly provided on one side of the moving contact assembly (311) facing the window (312), and a notch groove (311c) serving as an indicator portion is provided on a circumferential side wall of the circular boss (311a).

6. The indicating device according to any one of claims 1 to 5, characterized in that: The switch body (3) is provided with a closing mark (314) and / or an opening mark (315), and the closing mark (314) and the opening mark (315) correspond to the outside of the indication area (51).

7. The indicating device according to claim 1, characterized in that: The indicating window (5) is made of transparent material.

8. The installation structure of the isolating switch is characterized by: It comprises an indicating device as described in any one of claims 1 to 7, and also comprises a bracket (4) matched with an isolating switch, the bracket (4) comprises a connecting portion (41) and a supporting portion (42) connected to each other, the connecting portion (41) extends along the direction from the switch body (3) to the operating mechanism (2), the supporting portion (42) extends along a side of the operating mechanism (2) facing away from the cabinet panel (1), and the supporting portion (42) is used to install the isolating switch on the cabinet panel (1).

9. The installation structure of the isolating switch according to claim 8, characterized in that: The outer surface of the isolating switch is provided with a mounting groove for arranging a connecting portion (41), at least one side wall of the mounting groove is provided with a sliding groove, and at least one edge of the connecting portion (41) is inserted into the sliding groove.

10. The installation structure of the isolating switch according to claim 8, characterized in that: A protruding limiting portion (412) is provided at one end of the connecting portion (41) close to the operating mechanism (2), and the limiting portion (412) is inserted and limited in position with a limiting slot provided on the side of the operating mechanism (2) facing away from the cabinet panel (1).

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