CN2859604Y - Vehicle mounted electric control box capable of controlling temperature automatically - Google Patents
Vehicle mounted electric control box capable of controlling temperature automatically Download PDFInfo
- Publication number
- CN2859604Y CN2859604Y CN 200520047027 CN200520047027U CN2859604Y CN 2859604 Y CN2859604 Y CN 2859604Y CN 200520047027 CN200520047027 CN 200520047027 CN 200520047027 U CN200520047027 U CN 200520047027U CN 2859604 Y CN2859604 Y CN 2859604Y
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- connects
- valve
- expansion valve
- solenoid valve
- electric control
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Abstract
The utility model relates to a vehicle mounted electric control, especially a vehicle mounted electric control box capable of controlling temperature automatically, which solves the heat-dissipating problem when the temperature of the vehicle mounted electric control box is high. The vehicle mounted electric control box capable of controlling temperature automatically comprises an electric apparatus control unit and a refrigeration cycle unit. The electric control box is provided with a electric control box evaporator whose inlet has an expansion valve A. The charging line of the expansion valve A connects with a compressor through the angle valve and an electromagnetic valve A is mounted in the extraction pipeline at the other end of the expansion valve A. The electromagnetic valve A connects with a tee joint at the back and the other two interfaces separately connect with an electromagnetic valve B and a filter. Wherein, the filter connects with a compressor through a condensor and the electromagnetic valve B connects with an expand valve B coupled with an evaporator of driver's cab. The charging line of the expand valve B connects with the compressor through a tee joint. The electric apparatus control unit comprises a travel switch, an electronic temperature controlled switch, a relay, an electromagnetic valve and an axial flow fan. Wherein, the travel switch connects with the electronic temperature controlled switch coupled to the relay. One side of the relay connects with the travel switch and the other side connects with the electromagnetic valve A and the axial flow fan.
Description
Technical field: the utility model relates to a kind of controlled vehicle-mounted electrical device, particularly a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled.
Background technology:
Mainly be that nature cooling, natural ventilation and fan are taken a breath and realized at present in cooling to the controlled vehicle-mounted electrical case, what utilize that Refrigeration Technique implements cooling mainly is in indoor, electrical equipment control chamber or fixing large electric appliances switch board, has only in the pilothouse on automobile and uses.
Controlled vehicle-mounted electrical case good seal performance, outside pollution can't enter electric cabinet, shortcoming is when environment temperature is spent greater than 30, temperature in the case just can't descend smoothly, at summer high temperature be, particularly temperature is greater than 30 degree, and humidity was greater than 70% o'clock, the computer plate of its jacking system and the heat of signal plate distribute does not go out, and causes the computer plate that lifting is malfunctioning, out of control even burn out.And natural ventilation and the fan this mode of taking a breath is lowered the temperature to electric cabinet, and performance is better than the nature cooling, but when environment temperature is spent greater than 36, temperature in the case also can't lower, and this mode poor sealing performance, pollutant easily enters electric cabinet, damages internal electron wiring board and computer plate.
Summary of the invention: the purpose of this utility model provides a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled, under the prerequisite that guarantees the electric cabinet good seal, automatically controlled the temperature inside the box is remained between 0 degree～28 degree, relative humidity is less than 45%, make the electric elements operate as normal such as computer plate in the case, reduce failure rate, prolong its serviceable life.Solve the technical matters that the controlled vehicle-mounted electrical case can't dispel the heat when temperature is high.The technical solution of the utility model is: a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled, form by electrical control unit and refrigeration cycle unit, in electric cabinet, be provided with the electric cabinet evaporator, the electric cabinet evaporator inlet is provided with expansion valve A, the topping up pipe of expansion valve A connects compressor through angle valve, the expansion valve A other end is drawn pipeline and is provided with solenoid valve A, solenoid valve A back is connected to threeway, threeway two interfaces in addition connects solenoid valve B and filtrator respectively, filtrator is connected with compressor by condenser, solenoid valve B connects expansion valve B, and expansion valve B is communicated with the pilothouse evaporator, and expansion valve B topping up pipe connects compressor by three.Electrical control unit comprises travel switch, electron temperature detect switch, relay, solenoid valve and aerofoil fan, travel switch connects electron temperature detect switch, electron temperature detect switch is succeeded electrical equipment, relay switch one termination travel switch, the other end also is connected with solenoid valve A and aerofoil fan.
Electrical control unit by travel switch and diode be connected with pilothouse air-conditioning control section promptly can realize temperature automatically controlled.
The beneficial effects of the utility model are: the Controllable Temperature of electric cabinet is below 28 degree, relative humidity is less than 45%, electric elements such as computer in interior work can be worked in its normal temperature range, reduce failure rate greatly, prolong the serviceable life of electric elements such as computer.Every computer plate price is at 2.6 ten thousand yuan, and will scrap more than 10 every year before enforcement, after adopting cooling measure, has only every year 2 computer blackboard newspapers useless, has greatly reduced the use maintenance cost.
Description of drawings:
Fig. 1 is the utility model electrical apparatus control circuit figure
Fig. 2 is the utility model refrigeration cycle structure synoptic diagram
Among the figure: 1-electric cabinet evaporator, 2-expansion valve A, 3-solenoid valve A, 4-threeway A, 5-solenoid valve B, 6-filtrator, the 7-condenser, 8-compressor, 9-expansion valve B, 10-pilothouse evaporator, 11-angle valve, 12-threeway B, the 13-travel switch, the 14-electron temperature detect switch, 15-relay, 16-aerofoil fan.
Embodiment: with reference to Fig. 1,2,
(1) composition of electrical control unit: by ETC-24 type electron temperature detect switch 14; The capable control switch 13 of LX19-001 type; HG4185B 024-1H 40A relay 15 and base; AV-1225M24S axial flow blower 16 and FDF6 24V lead solenoid valve A3 form.
After its electrical control unit and this on-board air conditioner electrical control unit link, just can realize temperature automatically controlled.
(2) the refrigeration cycle unit is formed: by C-I type electric cabinet evaporator 1; Dg0.8FPF type expansion valve A2,
1 "/
4High-voltage tube;
1 "/
2Low-voltage tube;
3 "/
8With
5 "/
8Threeway A4 joint is formed.
Its refrigeration cycle part is connected with refrigeration cycle pilothouse evaporator 10 parts of on-board air conditioner, just refrigerating fluid can be introduced controlled vehicle-mounted electrical case evaporator 1.To reach the purpose of heat absorption.
Principle of work is: this system behind the composition can control the on-board air conditioner system separately, refrigerating fluid R134a is introduced electric cabinet evaporator 1, by aerofoil fan 16 low-temperature receiver on the evaporator and the thermal source in the case have been carried out circulating in the heat interchange realization air-flow, thereby reach the temperature that reduces in the electric control, also the warm air in the electric cabinet is lowered the temperature simultaneously, and condensate water is discharged to outside the car by downcomer, the temperature of electric cabinet can be by electron temperature detect switch 14 controls, when the temperature inside the box is spent greater than 28, automatically connect the on-board air conditioner system, make the electric cabinet cooling, can not influence the air-conditioning operation in the pilothouse simultaneously.The electronic-control box outside installs insulation material additional, reduces the inside and outside rate of heat exchange of casing.
(1) electrical equipment control figure illustrates:
Dotted line top is pilothouse air-conditioning control section, and the bottom is an electric cabinet temperature control electrical control part, and two parts can be manipulated separately, also can manipulate simultaneously, do not disturb mutually.
Its principle of work is as follows: behind the vehicle startup, and the adhesive of U3 relay, power supply is from fuse F
1/
6Control K
12Relay is air-breathing.Insurance F
4/
7Power supply is through K
12The contact arrives automatically controlled chamber door travel switch 13, and chamber door is closed the back power supply and just entered electron temperature detect switch 14 and K
40Relay 15, when the temperature in the electric cabinet reaches 28 when spending, electron temperature detect switch 14 is connected, and one the tunnel makes K
40Relay 15 adhesives are opened solenoid valve A3 and are made aerofoil fan 16 runnings, and another road enters the pilothouse air-conditioner control system through isolating the secondary case, makes K
13And K
14The closing of contact is rotated condenser 7 fans and the compressor of air conditioner clutch coil gets electric adhesive, compressor 8 work, because diode B must isolate solenoid valve B9 is not worked, when cutting off the pilothouse air-conditioning work, the electric cabinet evaporator is unaffected.
(2) refrigeration cyclic graph explanation
When the electric cabinet temperature is elevated to 28 when spending, solenoid valve A3 and compressor 8, condenser 7 work, the refrigerating fluid cyclic process is, become High Temperature High Pressure gaseous state refrigerating fluid behind the compressed machine 8 of low-temp low-pressure gaseous state refrigerating fluid, warm high-pressure liquid refrigerating fluid in after condenser 7 coolings, becoming, after entering filtrator 6, through threeway A4 joint, because solenoid valve B5 closes, refrigerating fluid enters by solenoid valve A3, expansion valve A2 and becomes low-temp low-pressure gaseous state refrigerating fluid after electric cabinet evaporator 1 exchanges hot gas in cold air and the case and turn back to compressor 8 through angle valve 11, threeway B12.
After pilothouse was turned on the aircondition, solenoid valve B5 opened, and refrigerating fluid just enters pilothouse evaporator 10 and makes the pilothouse cooling, and two systems can work simultaneously, also can work independently.Each other by solenoid valve A3 and solenoid valve B5 control, to reach the purpose of automatic control.
Estimate feasibility and prospect that invention is promoted: in the automobile application facet, the employed chassis of similar enterprise Or other vehicle, the electric cabinet higher to the control panel temperature requirement all can use the utility model, makes electrical equipment Element is working properly, reduces fault, increases the service life, and improves stability and the reliability of work.
The manufactory of vehicle particularly is for chassis or other car type used in the high temperature area, computer board Cooling is very important, otherwise will affect the quality of product. Thus, temperature automatically controlled controlled vehicle-mounted electrical case pair Provide reliable environment temperature guarantee in the oversize vehicle that computerized degree is more high from now on, of far-reaching significance.
Claims (4)
1, a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled, it is characterized in that: form by electrical control unit and refrigeration cycle unit, in electric cabinet, be provided with the electric cabinet evaporator, the electric cabinet evaporator inlet is provided with expansion valve A, the topping up pipe of expansion valve A connects compressor through angle valve, the expansion valve A other end is drawn pipeline and is provided with solenoid valve A, solenoid valve A back is connected to threeway, threeway two interfaces in addition connects solenoid valve B and filtrator respectively, filtrator is connected with compressor by condenser, solenoid valve B connects expansion valve B, and expansion valve B is communicated with the pilothouse evaporator, and expansion valve B topping up pipe connects compressor by three; Electrical control unit comprises travel switch, electron temperature detect switch, relay, solenoid valve and aerofoil fan, travel switch connects electron temperature detect switch, electron temperature detect switch is succeeded electrical equipment, relay switch one termination travel switch, the other end also is connected with solenoid valve A and aerofoil fan.
2, a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled according to claim 1 is characterized in that: electrical control unit is connected with pilothouse air-conditioning control section with diode B by travel switch.
3, a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled according to claim 1, it is characterized in that: electric cabinet is provided with the condensation downcomer.
4, a kind of controlled vehicle-mounted electrical case that can be temperature automatically controlled according to claim 1, it is characterized in that: the electronic-control box outside installs insulation material additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047027 CN2859604Y (en) | 2005-11-29 | 2005-11-29 | Vehicle mounted electric control box capable of controlling temperature automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047027 CN2859604Y (en) | 2005-11-29 | 2005-11-29 | Vehicle mounted electric control box capable of controlling temperature automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859604Y true CN2859604Y (en) | 2007-01-17 |
Family
ID=37612462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047027 Expired - Fee Related CN2859604Y (en) | 2005-11-29 | 2005-11-29 | Vehicle mounted electric control box capable of controlling temperature automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859604Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838264A (en) * | 2012-11-22 | 2014-06-04 | 襄樊新四五印染有限责任公司 | Anti-blocking liquid level self-control device of net belt evaporator |
| CN105050370A (en) * | 2015-08-30 | 2015-11-11 | 湖南华强电气有限公司 | Heat-sink cooling method and heat-sink cooling device for electric cabinet of automobile air conditioner |
| CN107940609A (en) * | 2017-11-06 | 2018-04-20 | 珠海格力电器股份有限公司 | A kind of radiating subassembly, air-conditioning system and the control method of air conditioner electric control case |
-
2005
- 2005-11-29 CN CN 200520047027 patent/CN2859604Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838264A (en) * | 2012-11-22 | 2014-06-04 | 襄樊新四五印染有限责任公司 | Anti-blocking liquid level self-control device of net belt evaporator |
| CN103838264B (en) * | 2012-11-22 | 2016-05-18 | 襄樊新四五印染有限责任公司 | The anti-blocking self-con-tained unit of a kind of guipure evaporimeter liquid level |
| CN105050370A (en) * | 2015-08-30 | 2015-11-11 | 湖南华强电气有限公司 | Heat-sink cooling method and heat-sink cooling device for electric cabinet of automobile air conditioner |
| CN107940609A (en) * | 2017-11-06 | 2018-04-20 | 珠海格力电器股份有限公司 | A kind of radiating subassembly, air-conditioning system and the control method of air conditioner electric control case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20091229 |