CN202333753U - Circuit automatic control cabinet - Google Patents
Circuit automatic control cabinet Download PDFInfo
- Publication number
- CN202333753U CN202333753U CN2011204644368U CN201120464436U CN202333753U CN 202333753 U CN202333753 U CN 202333753U CN 2011204644368 U CN2011204644368 U CN 2011204644368U CN 201120464436 U CN201120464436 U CN 201120464436U CN 202333753 U CN202333753 U CN 202333753U
- Authority
- CN
- China
- Prior art keywords
- control cabinet
- automatic control
- circuit
- contactor
- circuit automatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a circuit automatic control cabinet, belonging to the field of industrial devices. The circuit automatic control cabinet comprises a circuit breaker, an AC contactor and a switch power supply which are connected into a circuit in sequence and is characterized in that a thermal overload protector is arranged between the AC contactor and the switch power supply. The circuit automatic control cabinet has the characteristic of power utilization safety, not only ensures normal operation of electric appliances in a power equipment room for refrigeration storage, but also protects personal and property safety and improves the working efficiency.
Description
Technical field
The utility model relates to a kind of circuit automatic control cabinet, belongs to the commercial plant field.
Background technology
In the traditional circuit control cubicle of freezer with the power machine room, there is not the thermal overload protection device, the electrical equipment that usually causes because power load is excessive being connected burns, and the person and property safety are threatened.
Summary of the invention
According to above deficiency of the prior art, the technical problem that the utility model will solve is: the circuit automatic control cabinet that a kind of Electrical Safety, protection electrical equipment are provided.
The utility model solves the technical scheme that its technical problem adopted:
Described circuit automatic control cabinet comprises the circuit breaker, A.C. contactor and the Switching Power Supply that are connected in turn in the circuit, and its characteristics are: the thermal overload protection device is set between A.C. contactor and Switching Power Supply.
When making temperature rise to the operating temperature of thermal overload protection device when making the heating of electrical appliance failover; The thermal overload protection device is heated and produces internal stress and action rapidly; Open circuit, thus the disengagement failure appliances power source plays protection electrical equipment effect, when being dropped to the specified reset temperature value of thermal overload protection device by protection electrical equipment temperature; The thermal overload protection device returns to the initial condition closing of contact, and electrical equipment recovers operate as normal.
The beneficial effect that the utility model had is:
The utility model is provided with the thermal overload protection device between A.C. contactor and Switching Power Supply, have the characteristics of Electrical Safety, has not only guaranteed the normal operation of freezer with electrical equipment in the power machine room, has also protected the safety of the person and property, has improved operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, circuit automatic control cabinet; 2, circuit breaker; 3, A.C. contactor; 4, thermal overload protection device; 5, Switching Power Supply.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:
As shown in Figure 1, described circuit automatic control cabinet comprises the circuit breaker 2, A.C. contactor 3 and the Switching Power Supply 5 that are connected in turn in the circuit, and its characteristics are: between A.C. contactor 3 and Switching Power Supply 5, thermal overload protection device 4 is set.
When making temperature rise to the operating temperature of thermal overload protection device 4 when making the heating of electrical appliance failover; Thermal overload protection device 4 is heated and produces internal stress and action rapidly; Open circuit, thus the disengagement failure appliances power source plays protection electrical equipment effect, when being dropped to the specified reset temperature value of thermal overload protection device 4 by protection electrical equipment temperature; Thermal overload protection device 4 returns to the initial condition closing of contact, and electrical equipment recovers operate as normal.
The utility model is provided with thermal overload protection device 4 between A.C. contactor 3 and Switching Power Supply 5, have the characteristics of Electrical Safety, has not only guaranteed the normal operation of freezer with electrical equipment in the power machine room, has also protected the safety of the person and property, has improved operating efficiency.
Claims (1)
1. a circuit automatic control cabinet comprises the circuit breaker, A.C. contactor and the Switching Power Supply that are connected in turn in the circuit, it is characterized in that: the thermal overload protection device is set between A.C. contactor and Switching Power Supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204644368U CN202333753U (en) | 2011-11-21 | 2011-11-21 | Circuit automatic control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204644368U CN202333753U (en) | 2011-11-21 | 2011-11-21 | Circuit automatic control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202333753U true CN202333753U (en) | 2012-07-11 |
Family
ID=46445719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204644368U Expired - Fee Related CN202333753U (en) | 2011-11-21 | 2011-11-21 | Circuit automatic control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202333753U (en) |
-
2011
- 2011-11-21 CN CN2011204644368U patent/CN202333753U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |