Backup protection switch circular gap tripping small device

Abstract

A circular gap tripping small device of a backup protection switch is characterized by comprising a connecting assembly and a gap protection assembly, the connecting assembly is composed of a fixing frame and a fixing plate, one side of the fixing frame is connected with the fixing plate into a whole, the fixing frame is connected with an electromagnetic mechanism, the gap protection assembly is installed on the fixing plate, and the gap protection assembly is connected with the electromagnetic mechanism. According to the connecting assembly, the electromagnetic mechanism and the gap protection assembly are installed together in an attached mode, the electromagnetic mechanism is connected to the fixing frame of the connecting assembly in a clamped mode, the gap protection assembly is fixed to the fixing frame, the electromagnetic mechanism is clamped to the fixing frame, and the gap protection assembly is fixed to the fixing frame. The gap protection assembly is fixed to the fixing plate of the connecting assembly through the fixing nails, operation is convenient when the gap protection assembly and the connecting assembly are connected together, the gap protection assembly and the connecting assembly are installed in a close mode, the overall occupied space is reduced, and in addition, the fixing frame is provided with the positioning holes used for positioning the gap protection assembly, and the gap protection assembly and the connecting assembly can be assembled together more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing a rotary supporting wheel fender, in particular to a small circular gap tripping device for a backup protection switch. Background Art

[0002] The principle behind a backup protection switch is based on internal overcurrent protection components, such as thermal relays and electronic circuit breakers. When an overcurrent or short circuit is detected, these components rapidly disconnect the circuit, protecting equipment and systems. The primary function of a backup protection switch is to provide additional protection if the primary protection or circuit breaker fails to operate, ensuring that faulty equipment is disconnected promptly to prevent further damage.

[0003] The backup protection switch includes an electromagnetic mechanism, a gap protection mechanism and other components. Among them, the electromagnetic mechanism and the gap protection mechanism need to be connected for coordinated use. When assembling the backup protection switch, the electromagnetic mechanism and the gap protection mechanism are both independent and integrated. They need to be fixed twice during assembly, one by one to the housing of the back protection switch, and then the other by one connection. This makes the installation operation very troublesome. In view of this, a small circular gap tripping device for the backup protection switch is designed. Utility Model Content

[0004] In response to the above technical problems, the utility model provides a small circular gap tripping device for a backup protection switch. The connecting component enables the electromagnetic mechanism and the gap protection component to be installed close together. The two are easy to operate when connected together, and the close installation of the two also reduces the overall space required.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] The backup protection switch circular gap tripping device is characterized by comprising a connecting assembly and a gap protection assembly, wherein the connecting assembly is composed of a fixing frame and a fixing plate, one side of the fixing frame is connected to the fixing plate as a whole, the fixing frame is connected to the electromagnetic mechanism, the gap protection assembly is installed on the fixing plate, the four corners of the fixing plate are provided with fixing holes, and the fixing frame is provided with a positioning hole on the side close to the fixing plate.

[0007] The fixing frame is provided with limit slots on both sides, and the limit slots are used to clamp the electromagnetic mechanism.

[0008] The gap protection assembly consists of an upper shell, a lower shell, an upper copper sheet, a lower copper sheet and a PTFE gasket. Connection holes are provided at the four corners of the upper shell and the lower shell. Limiting columns are provided on one side of the upper shell and the lower shell. The limiting columns are adapted to the positioning holes. The upper copper sheet is connected to the groove provided on the upper shell. The lower copper sheet is installed in the groove provided on the lower shell. The upper shell is snap-connected to the lower shell. A PTFE gasket is placed between the upper copper sheet and the lower copper sheet.

[0009] The upper copper sheet and the lower copper sheet are connected to the electromagnetic mechanism respectively.

[0010] The upper shell is provided with card blocks on both sides, and the lower shell is provided with a card slot, and the card blocks are connected with the card slot on the lower shell.

[0011] A gap block is provided between the connection between the clamping block and the upper shell, and the gap block is connected to the clamping block as a whole. The length of the gap block is greater than the length of the clamping slot, so that there is a certain gap between the upper shell and the lower shell after the two are snap-connected, which is convenient for dissipating the heat of the sparks generated when lightning strikes the gap protection component, thereby reducing the burning of the upper shell and the lower shell.

[0012] Specifically, the position of each connection hole corresponds to the position of the fixing hole one by one, and the upper shell and the lower shell are connected to the fixing plate through fixing nails.

[0013] Specifically, positioning posts are provided on the bottoms of the grooves of the upper shell and the lower shell, and the positioning posts are respectively matched with the positioning grooves provided on the upper copper sheet and the lower copper sheet, and the positioning posts are used to position the copper sheets.

[0014] Beneficial effects of the utility model:

[0015] The connection assembly designed by the utility model realizes the close installation of the electromagnetic mechanism and the gap protection assembly together. The electromagnetic mechanism is clamped on the fixing frame of the connection assembly, and the gap protection assembly is fixed to the fixing plate of the connection assembly by fixing nails. Not only is the operation convenient when the two are connected together, but the close installation of the two also reduces the overall space required. In addition, the fixing frame is provided with a positioning hole for locating the position of the gap protection assembly, which makes it easier to assemble the two together.

[0016] The gap protection assembly designed in the utility model adds a gap block so that there is a certain gap between the upper shell and the lower shell after the two are snap-connected, which facilitates the heat dissipation of the sparks generated when lightning strikes the gap protection assembly, reducing the burning of the upper shell and the lower shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the circular gap tripping device of the backup protection switch of the utility model;

[0018] Figure 2 This is a bottom view schematic diagram of the overall structure of the circular gap tripping device of the backup protection switch of the utility model;

[0019] Figure 3 This is a bottom view schematic diagram of the overall exploded structure of the circular gap tripping device of the backup protection switch of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall explosion decomposition structure of the circular gap tripping device of the backup protection switch of the utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the block and slot of the circular gap tripping device of the backup protection switch of the present invention;

[0022] As shown in the figure: 11. Fixing frame, 111. Limiting slot, 12. Fixing plate, 121. Fixing hole, 31. Upper shell, 311. Connecting hole, 312. Limiting column, 313. Block, 3131. Gap block, 32. Lower shell, 321. Groove, 322. Positioning column, 323. Slot, 33. Upper copper sheet, 34. Lower copper sheet, 341. Positioning slot, 35. PTFE gasket. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Example 1

[0027] The connecting assembly is composed of a fixing frame 11 and a fixing plate 12. One side of the fixing frame 11 is connected to the fixing plate 12 as a whole. The fixing frame 11 is provided with a limit slot 111 on both sides. The limit slot 111 is used to clamp the electromagnetic mechanism 2.

[0028] The fixing plate 12 is provided with fixing holes 121 at the four corners, and a positioning hole 112 is provided on the side of the fixing frame 11 close to the fixing plate 12. The limiting columns 312 provided on one side of the upper shell 31 and the lower shell 32 are adapted to the positioning holes 112. The positioning holes 112 play a positioning role when the gap protection component is fixed to the fixing plate 12.

[0029] The gap protection assembly consists of an upper shell 31, a lower shell 32, an upper copper sheet 33, a lower copper sheet 34 and a PTFE gasket 35. Connection holes 311 are provided at the four corners of the upper shell 31 and the lower shell 32. The position of each connection hole 311 corresponds to the position of the fixing hole 121 on the fixing plate 12. After the upper shell 31 and the lower shell 32 are snap-fitted together, they are fixed to the fixing plate 12 by fixing nails.

[0030] The upper copper sheet 33 is connected to the groove 321 provided on the upper shell 31, and the lower copper sheet 34 is installed in the groove 321 provided on the lower shell 32. A polytetrafluoroethylene gasket 35 is placed between the upper copper sheet 33 and the lower copper sheet 34, and the upper copper sheet 33 and the lower copper sheet 34 are respectively connected to the electromagnetic mechanism.

[0031] Positioning posts 322 are provided on the bottom of the grooves 321 of the upper shell 31 and the lower shell 32. The positioning posts 322 are respectively adapted to the positioning grooves 341 provided on the upper copper sheet 33 and the lower copper sheet 34. The positioning posts 322 are used to position the two copper sheets.

[0032] Blocks 313 are provided on both sides of the upper shell 31, and slots 323 are provided on the lower shell 34 at positions corresponding to the blocks 313. The blocks 313 of the upper shell 31 are engaged with the slots 323 on the lower shell 32.

[0033] like Figure 5 A gap block 3131 is provided between the connection between the clamping block 313 and the upper shell 31. The gap block 3131 is connected to the clamping block 313 as a whole. The length of the gap block 3131 is greater than the length of the clamping slot 323, so that there is a certain gap between the upper shell 31 and the lower shell 32 after the two are snap-connected, which is convenient for dissipating the heat of the sparks generated when lightning strikes the gap protection component, thereby reducing the burning of the upper shell 31 and the lower shell 32.

[0034] Example 2

[0035] The connecting assembly designed in the present invention realizes the close installation of the electromagnetic mechanism 2 and the gap protection assembly together. The electromagnetic mechanism 2 is clamped on the fixing frame 11 of the connecting assembly, and the gap protection assembly is fixed on the fixing plate 12 of the connecting assembly by fixing nails. Not only is the operation convenient when the two are connected together, but the very close installation of the two also reduces the overall space required. In addition, a positioning hole 112 for locating the position of the gap protection assembly is provided on the fixing frame 11, which facilitates the positioning of the gap protection assembly.

[0036] The electromagnetic mechanism 2 in the present invention is an existing component, so this application will not describe it in detail.

[0037] During use, in normal state, when the two sides of the electromagnetic mechanism are connected to the upper copper sheet 33 and the lower copper sheet 34 in the gap protection assembly respectively, a polytetrafluoroethylene gasket 35 is placed between the upper copper sheet 33 and the lower copper sheet 34. The polytetrafluoroethylene gasket 35 creates a gap between the two copper sheets, so that the current cannot be conducted, and the circuit is blocked.

[0038] When lightning strikes, due to the excessive current, the air in the gap between the upper and lower copper sheets in the gap protection assembly is broken down, so that the upper copper sheet 33 and the lower copper sheet 34 are connected, and the current can pass through and enter the electromagnetic mechanism 2. The coil of the electromagnetic mechanism 2 will be energized to generate a magnetic field, causing the ejector pin in the coil bracket of the electromagnetic mechanism 2 to move, and then impact the switch mechanism in the back protection switch. The hook of the switch mechanism in the back protection switch will be tripped, the switch will trip, and the electrical equipment will be protected.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in this utility model is defined by the appended claims and their equivalents.

Claims

1. Backup protection switch circular gap tripping device, characterized by It includes a connecting component and a gap protection component. The connecting component consists of a fixing frame and a fixing plate. One side of the fixing frame is connected to the fixing plate as a whole. The fixing frame is connected to the electromagnetic mechanism. The gap protection component is installed on the fixing plate. Fixing holes are provided at the four corners of the fixing plate. A positioning hole is provided on the side of the fixing frame close to the fixing plate.

2. The backup protection switch circular gap tripping device according to claim 1 is characterized in that Limiting slots are respectively provided on both sides of the fixing frame, and the limiting slots are used for clamping the electromagnetic mechanism.

3. The backup protection switch circular gap tripping device according to claim 1 is characterized in that The gap protection assembly consists of an upper shell, a lower shell, an upper copper sheet, a lower copper sheet and a polytetrafluoroethylene gasket. Connection holes are provided at the four corners of the upper shell and the lower shell, and the position of each connection hole corresponds one-to-one to the position of the fixing hole. A limiting column is provided on one side of the upper shell and the lower shell, and the limiting column is adapted to the positioning hole. The upper copper sheet is connected to the groove provided on the upper shell, and the lower copper sheet is installed in the groove provided on the lower shell. The upper shell is snap-connected to the lower shell, and a polytetrafluoroethylene gasket is placed between the upper copper sheet and the lower copper sheet.

4. The backup protection switch circular gap tripping device according to claim 3 is characterized in that The upper copper sheet and the lower copper sheet are respectively connected to the electromagnetic mechanism.

5. The backup protection switch circular gap tripping device according to claim 3 is characterized in that The upper shell is provided with card blocks on both sides respectively, and the lower shell is provided with a card slot, and the card blocks are card-connected with the card slot on the lower shell.

6. The backup protection switch circular gap tripping device according to claim 5, characterized in that A gap block is provided between the clamping block and the upper shell body. The gap block and the clamping block are connected as a whole. The length of the gap block is greater than the length of the clamping slot.

7. The backup protection switch circular gap tripping device according to claim 3 is characterized in that Positioning posts are provided on the bottoms of the grooves of the upper shell and the lower shell, and the positioning posts are respectively matched with the positioning grooves provided on the upper copper sheet and the lower copper sheet.

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