Transformer temperature alarm device

Abstract

The utility model discloses a transformer temperature alarm device which comprises an element board, a transformer is arranged on the element board, and a temperature detection module used for detecting the temperature change of the transformer is arranged on the element board on the side edge of the transformer. An alarm mechanism used for giving an alarm when the temperature of the transformer is high is arranged on one side of the temperature detection module, a cooling mechanism used for adjusting the temperature of the transformer is arranged on the periphery of the transformer, and the control end of the alarm mechanism and the control end of the cooling mechanism are electrically connected with the signal output end of the temperature detection module. According to the utility model, the problem in the prior art that maintenance workers need to consume more time for maintenance because a traditional transformer temperature alarm device is not provided with a cooling mechanism is solved. The device has the advantages of simple structure, convenience in use, short maintenance time and the like.

Description

Technical Field

[0001] The utility model relates to the field of transformer equipment, and more specifically, to a transformer temperature alarm device. Background Art

[0002] At present, a transformer temperature alarm device is disclosed on the Chinese patent website, with the publication number CN202947799U. The thermostat is fixed on a metal base plate, which is fixed on a metal shell, and the thermostat is located in a cavity formed by the metal base plate and the metal shell. The side of the metal shell is provided with a metal connecting plate, which has screw holes. The metal shell is fixed to the transformer through the screw holes on the metal connecting plate. The normally open contact on the thermostat is connected with a lead, which passes through the threading hole on the metal base plate and is connected to the alarm. When the temperature of the transformer exceeds the temperature set by the thermostat, the normally open contact of the thermostat is closed, and the alarm is turned on to sound an alarm, reminding the staff to take immediate measures to protect the transformer.

[0003] Although the transformer temperature alarm device in the above patent has the function of immediately reminding the staff to come for maintenance when the transformer temperature is high, when the maintenance worker comes for maintenance, since the transformer temperature is high at this time and there is no mechanism for cooling the transformer on the transformer temperature alarm device, the maintenance worker needs to manually close the line first and wait for the transformer to cool down naturally before maintenance can be carried out, and this process takes a long time. Utility Model Content

[0004] In order to overcome the problem that the traditional transformer temperature alarm device in the prior art has no cooling mechanism, which causes the maintenance workers to spend more time on maintenance, the utility model provides a transformer temperature alarm device with the function of cooling the transformer.

[0005] The utility model discloses a transformer temperature alarm device, comprising a component board, a transformer is arranged on the component board, a temperature detection module for detecting the temperature change of the transformer is arranged on the component board located at the side of the transformer, an alarm mechanism for issuing an alarm when the temperature of the transformer is high is arranged on one side of the temperature detection module, a cooling mechanism for regulating the temperature of the transformer is arranged on the periphery of the transformer, and a control end of the alarm mechanism and a control end of the cooling mechanism are electrically connected to the signal output end of the temperature detection module respectively.

[0006] Preferably, the cooling mechanism includes a fan FS1, a fan FS2 and a fan FS3, the fan FS1, the fan FS2 and the fan FS3 have the same structure and are evenly arranged around the transformer, and the control end of the fan FS1, the control end of the fan FS2 and the control end of the fan FS3 are electrically connected to the signal output end of the temperature detection module respectively.

[0007] Preferably, the temperature detection module includes a controller BWDK, a relay ZJ and a circuit breaker ZK, the alarm mechanism is an alarm JL, the signal input end of the relay ZJ and the signal input end of the alarm JL are electrically connected to the signal output end of the controller BWDK respectively, and the signal output end of the relay ZJ is electrically connected to the signal receiving end of the circuit breaker ZK.

[0008] Preferably, pin 1 of the controller BWDK is electrically connected to pin 8, pin 8 of the controller BWDK is electrically connected to pin 1 of the alarm JL, pin 2 of the alarm JL is electrically connected to pin 2 of the circuit breaker ZK, pin 2 of the controller BWDK is electrically connected to pin 2 of the fan FS1 and pin 9 of the controller BWDK respectively, pin 9 of the controller BWDK is electrically connected to pin 14 of the controller BWDK and pin 4 of the circuit breaker ZK respectively, pin 3 of the controller BWDK is electrically connected to pin 10 of the controller BWDK, pin 7 of the controller BWDK, pin 5 of the controller BWDK, pin 1 of the fan FS1, pin 1 of the fan FS2 and pin 1 of the fan FS3 respectively, pin 10 of the controller BWDK is electrically connected to pin 1 of the relay ZJ, pin 2 of the relay ZJ is electrically connected to pin 10 of the controller BWDK, pin 7 of the controller BWDK, pin 5 of the controller BWDK, pin 1 of the fan FS1, pin 1 of the fan FS2 and pin 1 of the fan FS3 They are respectively electrically connected to pin 13 of the controller BWDK and pin 2 of the circuit breaker ZK, pin 4 of the controller BWDK is respectively electrically connected to pin 11 of the controller BWDK and pin 2 of the fan FS2, pin 11 of the controller BWDK is respectively electrically connected to pin 4 of the circuit breaker ZK, pin 5 of the controller BWDK is electrically connected to pin 12 of the controller BWDK, pin 12 of the controller BWDK is grounded, pin 6 of the controller BWDK is electrically connected to pin 2 of the fan FS3, pin 13 of the controller BWDK is electrically connected to pin 2 of the circuit breaker ZK, pin 7 of the controller BWDK is electrically connected to pin 14 of the controller BWDK, pin 1 of the circuit breaker ZK is electrically connected to the low-voltage circuit of the transformer, and pin 3 of the circuit breaker ZK is electrically connected to the high-voltage circuit of the transformer.

[0009] The controller BWDK may adopt the model BWDK-3207 dry-type transformer temperature controller, which integrates a temperature sensor and a controller and has the advantages of small size and fast response speed.

[0010] The relay ZJ adopts the model JZC1-44.

[0011] The circuit breaker may be a two-pole circuit breaker.

[0012] The controller BWDK and the fan both use independent power supplies.

[0013] The alarm JL can be a buzzer.

[0014] Before operation, install the temperature detection end of the controller BWDK near the temperature sensing part of the transformer, and then preset the temperature threshold in the controller BWDK. During operation, the temperature detection end of the controller BWDK will detect the temperature of the transformer surface in real time and compare the detected temperature with the preset temperature threshold. When the temperature is high but has not reached the threshold, the controller BWDK will send action instructions to the three fans respectively, and the three fans will cool down the surface of the transformer respectively; when the fans are working, the controller BWDK will still detect the surface temperature of the transformer in real time. If the temperature reaches or exceeds the threshold, the controller BWDK will send instructions to the relay ZJ, and the relay ZJ will energize the circuit breaker ZK. At this time, the circuit breaker ZK will open the gate to disconnect the high-voltage circuit and the low-voltage circuit of the transformer, thereby protecting the load circuit. At the same time, the controller BWDK will send an action instruction to the alarm JL, and the alarm JL will immediately sound an alarm to remind maintenance personnel to come for maintenance. During this process, the controller BWDK will still control the fans to cool down the transformer. When the controller BWDK detects that the temperature is suitable for maintenance, the alarm JL will immediately make a maintainable sound to promptly remind maintenance personnel to repair the transformer.

[0015] The utility model utilizes the fans distributed in an annular shape to quickly cool the surface of the transformer, greatly shortening the time that maintenance personnel have to wait for the transformer to cool down, thereby shortening the maintenance time.

[0016] The utility model has the following beneficial effects: simple structure, convenient use and short maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a circuit block diagram of the utility model.

[0018] Attached Figure 2 This is a circuit schematic diagram of the utility model.

[0019] Temperature detection module 1, alarm mechanism 2, cooling mechanism 3. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0021] Embodiment: According to the attached Figure 1 and attached Figure 2The utility model is further explained. A transformer temperature alarm device in this example includes a component board, a transformer is provided on the component board, a temperature detection module 1 for detecting temperature changes of the transformer is provided on the component board located on the side of the transformer, an alarm mechanism 2 for issuing an alarm when the temperature of the transformer is high is provided on one side of the temperature detection module 1, a cooling mechanism 3 for regulating the temperature of the transformer is provided on the periphery of the transformer, and the control end of the alarm mechanism 2 and the control end of the cooling mechanism 3 are electrically connected to the signal output end of the temperature detection module 1 respectively.

[0022] The cooling mechanism 3 includes a fan FS1, a fan FS2 and a fan FS3. The fan FS1, the fan FS2 and the fan FS3 have the same structure and are evenly arranged around the transformer. The control end of the fan FS1, the control end of the fan FS2 and the control end of the fan FS3 are electrically connected to the signal output end of the temperature detection module 1 respectively.

[0023] The temperature detection module 1 includes a controller BWDK, a relay ZJ and a circuit breaker ZK. The alarm mechanism 2 is an alarm JL. The signal input end of the relay ZJ and the signal input end of the alarm JL are electrically connected to the signal output end of the controller BWDK respectively, and the signal output end of the relay ZJ is electrically connected to the signal receiving end of the circuit breaker ZK.

[0024] Pin 1 of the controller BWDK is electrically connected to pin 8, pin 8 of the controller BWDK is electrically connected to pin 1 of the alarm JL, pin 2 of the alarm JL is electrically connected to pin 2 of the circuit breaker ZK, pin 2 of the controller BWDK is electrically connected to pin 2 of the fan FS1 and pin 9 of the controller BWDK, pin 9 of the controller BWDK is electrically connected to pin 14 of the controller BWDK and pin 4 of the circuit breaker ZK, pin 3 of the controller BWDK is electrically connected to pin 10 of the controller BWDK, pin 7 of the controller BWDK, pin 5 of the controller BWDK, pin 1 of the fan FS1, pin 1 of the fan FS2 and pin 1 of the fan FS3, pin 10 of the controller BWDK is electrically connected to pin 1 of the relay ZJ, and pin 2 of the relay ZJ is electrically connected to Pin 13 of the controller BWDK is electrically connected to pin 2 of the circuit breaker ZK, pin 4 of the controller BWDK is electrically connected to pin 11 of the controller BWDK and pin 2 of the fan FS2, pin 11 of the controller BWDK is electrically connected to pin 4 of the circuit breaker ZK, pin 5 of the controller BWDK is electrically connected to pin 12 of the controller BWDK, pin 12 of the controller BWDK is grounded, pin 6 of the controller BWDK is electrically connected to pin 2 of the fan FS3, pin 13 of the controller BWDK is electrically connected to pin 2 of the circuit breaker ZK, pin 7 of the controller BWDK is electrically connected to pin 14 of the controller BWDK, pin 1 of the circuit breaker ZK is electrically connected to the low-voltage circuit of the transformer, and pin 3 of the circuit breaker ZK is electrically connected to the high-voltage circuit of the transformer.

[0025] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A transformer temperature alarm device, comprising a component board, on which a transformer is provided, characterized in that: A temperature detection module (1) for detecting temperature changes of the transformer is provided on a component board located on a side of the transformer; an alarm mechanism (2) for issuing an alarm when the temperature of the transformer is high is provided on one side of the temperature detection module (1); a cooling mechanism (3) for regulating the temperature of the transformer is provided on the periphery of the transformer; a control end of the alarm mechanism (2) and a control end of the cooling mechanism (3) are respectively electrically connected to a signal output end of the temperature detection module (1).

2. A transformer temperature alarm device according to claim 1, characterized in that: The cooling mechanism (3) comprises a fan FS1, a fan FS2 and a fan FS3. The fan FS1, the fan FS2 and the fan FS3 have the same structure and are evenly arranged around the transformer. The control end of the fan FS1, the control end of the fan FS2 and the control end of the fan FS3 are respectively electrically connected to the signal output end of the temperature detection module (1).

3. A transformer temperature alarm device according to claim 1, characterized in that: The temperature detection module (1) comprises a controller BWDK, a relay ZJ and a circuit breaker ZK, the alarm mechanism (2) is an alarm JL, the signal input end of the relay ZJ and the signal input end of the alarm JL are respectively electrically connected to the signal output end of the controller BWDK, and the signal output end of the relay ZJ is electrically connected to the signal receiving end of the circuit breaker ZK.

4. A transformer temperature alarm device according to claim 3, characterized in that: Pin 1 of the controller BWDK is electrically connected to pin 8, pin 8 of the controller BWDK is electrically connected to pin 1 of the alarm JL, pin 2 of the alarm JL is electrically connected to pin 2 of the circuit breaker ZK, pin 2 of the controller BWDK is electrically connected to pin 2 of the fan FS1 and pin 9 of the controller BWDK, pin 9 of the controller BWDK is electrically connected to pin 14 of the controller BWDK and pin 4 of the circuit breaker ZK, pin 3 of the controller BWDK is electrically connected to pin 10 of the controller BWDK, pin 7 of the controller BWDK, pin 5 of the controller BWDK, pin 1 of the fan FS1, pin 1 of the fan FS2 and pin 1 of the fan FS3, pin 10 of the controller BWDK is electrically connected to pin 1 of the relay ZJ, and pin 2 of the relay ZJ is electrically connected to Pin 13 of the controller BWDK is electrically connected to pin 2 of the circuit breaker ZK, pin 4 of the controller BWDK is electrically connected to pin 11 of the controller BWDK and pin 2 of the fan FS2, pin 11 of the controller BWDK is electrically connected to pin 4 of the circuit breaker ZK, pin 5 of the controller BWDK is electrically connected to pin 12 of the controller BWDK, pin 12 of the controller BWDK is grounded, pin 6 of the controller BWDK is electrically connected to pin 2 of the fan FS3, pin 13 of the controller BWDK is electrically connected to pin 2 of the circuit breaker ZK, pin 7 of the controller BWDK is electrically connected to pin 14 of the controller BWDK, pin 1 of the circuit breaker ZK is electrically connected to the low-voltage circuit of the transformer, and pin 3 of the circuit breaker ZK is electrically connected to the high-voltage circuit of the transformer.

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