CN202940567U - Thermal insulation cabinet fan stop protection circuit - Google Patents
Thermal insulation cabinet fan stop protection circuit Download PDFInfo
- Publication number
- CN202940567U CN202940567U CN 201220577845 CN201220577845U CN202940567U CN 202940567 U CN202940567 U CN 202940567U CN 201220577845 CN201220577845 CN 201220577845 CN 201220577845 U CN201220577845 U CN 201220577845U CN 202940567 U CN202940567 U CN 202940567U
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- insulation cabinet
- protection circuit
- cabinet fan
- fan stop
- 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 - Lifetime
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Abstract
The utility model pertains to the field of thermal insulation cabinets, and particularly relates to a protection circuit design after a train-used thermal insulation cabinet fan stops, so as to provide a thermal insulation cabinet fan stop protection circuit which is low in production cost and does not need manual operation. The thermal insulation cabinet fan stop protection circuit comprises a main loop for electric heating and a fan; a fuse is arranged in the main loop; and two over-temperature protection devices are connected in series below the main loop fuse. The thermal insulation cabinet fan stop protection circuit has the advantages of low manufacturing cost, flexible and convenient mounting way, and easy replacement and adjustment.
Description
Technical field
This is novel belongs to the thermal insulation cabinet field, relates in particular to the protecting circuit designed of train after with the stall of thermal insulation cabinet blower fan.
Background technology
Thermal insulation cabinet equipment has been widely used in the dining car integral device in Harmony speed car, and the existing market existing product only adopts first class of protection (realizing by fuse) and second class protection (overtemperature prote) to thermal insulation cabinet equipment.To the blower fan of critical piece, after stall, it is very high that the box house local temperature reaches, but can't reach the original second class protection of equipment.This phenomenon easily causes the damage of thermal insulation cabinet equipment and causes certain potential safety hazard.
The utility model content
The utility model purpose be to provide a kind of with low cost, need not manually-operated thermal insulation cabinet blower fan stall protective circuit.
Concrete technical scheme is: a kind of thermal insulation cabinet blower fan stall protective circuit comprises the major loop of electric heating and blower fan being provided with fuse in major loop above-mentioned major loop fuse below 2 Overtemp. protectors of connecting.The model of above-mentioned Overtemp. protector is WYF80-ZS4.
The utlity model has low processing cost, mounting means flexibly, convenient, be easy to change, regulate, energy savings, the advantages such as human nature service satisfy the society consumer demand.
Description of drawings
Fig. 1 is this novel installation site structural representation.
Fig. 2 enters the major loop schematic diagram for this Novel connecting.
Embodiment
See Fig. 1 and Fig. 2, this novel Overtemp. protector is arranged on around blower fan and electric heating, and the major loop of electric heating and blower fan in the access electrical appliance kit.After the blower fan stall, the temperature anomaly around electric heating and blower fan judges the break-make in loop.
Above-mentioned Overtemp. protector model is: WYF80-ZS4, rated current, voltage and working temperature are respectively 16A, 230V and 95oC.2 Overtemp. protectors of series connection below fuse FU4 by Overtemp. protector break-make control contactor KM adhesive, thereby are controlled heating element E1～E3 operating state, avoid the integral device excess Temperature.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (2)
1. thermal insulation cabinet blower fan stall protective circuit comprises the major loop of electric heating and blower fan being provided with fuse in major loop, it is characterized in that: 2 Overtemp. protectors of above-mentioned major loop fuse below series connection.
2. thermal insulation cabinet blower fan stall protective circuit according to claim 1, it is characterized in that: the model of above-mentioned Overtemp. protector is WYF80-ZS4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577845 CN202940567U (en) | 2012-11-05 | 2012-11-05 | Thermal insulation cabinet fan stop protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577845 CN202940567U (en) | 2012-11-05 | 2012-11-05 | Thermal insulation cabinet fan stop protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940567U true CN202940567U (en) | 2013-05-15 |
Family
ID=48324790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577845 Expired - Lifetime CN202940567U (en) | 2012-11-05 | 2012-11-05 | Thermal insulation cabinet fan stop protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940567U (en) |
-
2012
- 2012-11-05 CN CN 201220577845 patent/CN202940567U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |