Band-type brake power panel with adjustable power supply

Abstract

The utility model provides a band-type brake power panel with an adjustable power supply, the band-type brake power panel is fixed in a control cabinet, a plug-in board support is arranged in the control cabinet, more than two layers of circuit boards are arranged on the plug-in board support, and the band-type brake power panel is fixed on the lower layer of the plug-in board support. The edge of one side of the band-type brake power panel is arranged close to the upper-layer side edge of the plug-in board support and exceeds the upper-layer edge of the plug-in board support, a wiring port is fixedly arranged on the edge of the side, and the rest part of the band-type brake power panel is covered by the upper-layer plug-in board support. The band-type brake power panel belongs to a high-voltage circuit component and has certain dangerousness, so that the band-type brake power panel is fixed on the lower layer, only the part needing wiring is reserved outside, identification is convenient, wiring is safe, and wire arrangement and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to an improvement in the control circuit of an elevator, specifically an adjustable power supply brake power board. Background Technology

[0002] The elevator brake is a braking device on the elevator traction machine. Since the brake is a safety device, its power supply requires a separate safety circuit. Therefore, the control cabinet needs to have a power supply device for the brake circuit. Conventional brake power supply devices require a circuit to be connected from the main power supply and stepped down from AC220V to DC110V through a step-down circuit. The wiring is complicated and inconvenient for circuit management. Therefore, an improvement is needed. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned deficiencies in the prior art and to provide an adjustable power supply board for a brake.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: the brake power supply board is fixed in the control cabinet, and a plug-in board bracket is provided inside the control cabinet. Two or more layers of circuit boards are mounted on the plug-in board bracket. The brake power supply board is fixed to the lower layer of the plug-in board bracket. One side edge of the brake power supply board is adjacent to and extends beyond the upper side edge of the plug-in board bracket. A wiring port is fixedly provided on this side edge. The rest of the brake power supply board is covered by the upper plug-in board bracket. Since the brake power supply board is a high-voltage circuit component and poses a certain degree of danger, fixing it to the lower layer, leaving only the wiring parts exposed externally, facilitates identification, ensures safe wiring, and makes wire organization and maintenance convenient.

[0005] Furthermore, the wiring ports include an AC220V input port, a DC110V output port, and a DC24V output port. The brake power supply board receives AC220V power and outputs two DC power supplies, DC110V and DC24V respectively. The DC24V output port is connected to an adjusting potentiometer, and the output voltage is adjustable between DC23-28V. The DC110V output port is connected to a DC step-down converter, which steps down the voltage to DC60V or DC80V. In addition to providing power to the brake, the brake power supply board can also output a low-voltage power supply near 24V to power other electrical appliances in the control cabinet, saving some circuit components, improving integration, and reducing the size of the control cabinet. The 110V DC is the voltage required for the brake's emergency braking operation, and 60V or 80V is the brake's holding voltage; therefore, the required voltage is output through voltage step-down adjustment.

[0006] Furthermore, the DC step-down converter is equipped with a DIP switch, which has JP2 and JP3 switches. JP3 is the excitation voltage switch, and JP2 is the sustaining voltage switch. When JP3 is in the default "ON" state, JP2 is active, and the output is DC60V or DC80V. When JP3 is in the "OFF" state, JP2 is unavailable, and the output is DC110V. The DIP switch generates the required voltage output by opening and closing different paths, resulting in fast and efficient braking and ensuring the safe operation of the elevator.

[0007] Furthermore, the plug-in board bracket includes a fixed plate and support feet. The support feet are located on the four sides of the fixed plate, and the height of the support feet is greater than the height of the brake power supply board. The support feet are welded or screwed to the bottom panel of the control cabinet, and the brake power supply board is fixed within the height space supported by the support feet. The plug-in board bracket creates a good installation space, makes full use of the space of the control cabinet, forms a multi-layer installation structure, and improves the integration.

[0008] Compared with the prior art, this utility model has the following advantages and effects: This device is a power supply board for a brake used in a control cabinet. It has an adjustable voltage output function, can work for a long time, has clear and safe wiring, and can also supply power to other electrical appliances. It has the function of functional integration and improves safety. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the brake power supply board on the control cabinet (partial).

[0010] Figure 2 This is a schematic diagram of the brake power supply board.

[0011] Figure 3 This is a functional diagram of the DIP switch.

[0012] Figure 4 This is the circuit diagram of the brake power supply board.

[0013] In the diagram: 1. Brake power supply board, 2. Control cabinet, 3. Plug-in board bracket, 4. Wiring port, 5. AC220V input port, 6. DC110V output port, 7. DC24V output port, 8. Fixing plate, 9. Support foot. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0015] An adjustable power supply brake power board 1 is fixed in a control cabinet 2. The control cabinet 2 is equipped with a plug-in board bracket 3, on which two or more circuit boards are mounted. The brake power board 1 is fixed to the lower layer of the plug-in board bracket 3. One side edge of the brake power board 1 is adjacent to the upper side edge of the plug-in board bracket 3 and extends beyond the upper edge of the plug-in board bracket 3. A wiring port 4 is fixedly provided on this side edge. The rest of the brake power board 1 is covered by the upper plug-in board bracket 3.

[0016] The wiring port 4 includes an AC220V input port 5, a DC110V output port 6, and a DC24V output port 7. The brake power board 1 inputs AC220V power and outputs two DC power supplies, namely DC110V and DC24V. The DC24V output port 7 is connected to an adjustment potentiometer, and the output voltage is adjustable between DC23-28V. The DC110V output port 6 is connected to a DC step-down converter, which steps down the voltage to DC60V or DC80V.

[0017] The DC step-down converter is equipped with a DIP switch, which has JP2 and JP3 switches. JP3 is the excitation voltage switch and JP2 is the sustaining voltage switch. When JP3 is in the default "ON" state, JP2 is active and outputs DC60V or DC80V. When JP3 is "OFF", JP2 is unavailable and outputs DC110V.

[0018] The plug-in board bracket 3 includes a fixed plate 8 and support feet 9. The support feet 9 are arranged on the four sides of the fixed plate 8. The height of the support feet 9 is greater than the height of the brake power board 1. The support feet 9 are welded or screwed to the bottom panel of the control cabinet 2. The brake power board 1 is fixed within the height space supported by the support feet 9.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary rather than restrictive in all respects. The scope of this invention is defined by the claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] Furthermore, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description method is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A brakeable power panel of an adjustable power supply, characterized by: The holding brake power supply board (1) is fixed in the control cabinet (2), the control cabinet (2) is provided with plug-in board support (3), the plug-in board support (3) is disposed with more than two layers of circuit board, the holding brake power supply board (1) is fixed in the lower layer of plug-in board support (3), the side edge of holding brake power supply board (1) is adjacent to the upper layer side edge of plug-in board support (3) and is arranged beyond the upper layer edge of plug-in board support (3), the wiring port (4) is fixedly arranged on the side edge, the remaining part of holding brake power supply board (1) is covered and arranged by the upper layer plug-in board support (3).

2. The adjustable power supply's clutch power panel of claim 1, wherein: The wiring port (4) includes AC220V input port (5), DC110V output port (6) and DC24V output port (7), the holding brake power supply board (1) inputs AC220V power supply, outputs two-way DC power supply, respectively DC110V and DC24V, the DC24V output port (7) is connected to the regulating potentiometer, the output voltage is adjustable between DC23-28V, the DC110V output port (6) is connected with DC voltage reducer, and the voltage is reduced to DC60V or DC80V.

3. The adjustable power supply's clutch power panel of claim 2, wherein: The DC voltage reducer is provided with a dial, the dial has JP2 and JP3 switches, JP3 is an excitation voltage switch, JP2 is a maintenance voltage switch, JP3 is a default "ON” state, JP2 is effective, and DC60V or DC80V is output, when JP3 is "OFF”, JP2 is not available, and DC110V is output.

4. The adjustable power supply's clutch power panel of claim 1, wherein: The plug-in board support (3) includes a fixed plate (8) and a support leg (9), the support leg (9) is arranged at the four edges of the fixed plate (8), the height of the support leg (9) is greater than the height of the holding brake power supply board (1), the support leg (9) is welded or screwed and fixed on the bottom panel of the control cabinet (2), and the holding brake power supply board (1) is fixed in the height space supported by the support leg (9).

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