CN202632137U - Automatic temperature control device for automobile exhaust extraction of environmental chamber - Google Patents
Automatic temperature control device for automobile exhaust extraction of environmental chamber Download PDFInfo
- Publication number
- CN202632137U CN202632137U CN 201220254712 CN201220254712U CN202632137U CN 202632137 U CN202632137 U CN 202632137U CN 201220254712 CN201220254712 CN 201220254712 CN 201220254712 U CN201220254712 U CN 201220254712U CN 202632137 U CN202632137 U CN 202632137U
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- environmental chamber
- connecting pipe
- blower fan
- vehicle exhaust
- fan
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Abstract
The utility model provides an automatic temperature control device for the automobile exhaust extraction of an environmental chamber, and belongs to the technical field of automobile electronics. The problem that the rotating speed of a fan of an automobile exhaust extraction system of the environmental chamber is required to be manually adjusted so as not to well achieve an expected effect is solved. The device comprises the fan with an air inlet and an air outlet, wherein the air inlet of the fan is connected with a connecting pipe; a temperature sensor for acquiring the temperature of automobile exhaust is arranged in the connecting pipe, and is connected with a master controller which is also connected with a control unit for controlling the rotating speed of the fan; and the control unit is connected with a motor of the fan. According to the device, the rotating speed of the fan can be automatically adjusted, so that the extraction of the environmental chamber is adapted to the emissions of different exhaust.
Description
Technical field
The utility model belongs to technical field of automotive electronics, relates to a kind of environmental chamber vehicle exhaust pump drainage thermostat.
Background technology
But environmental chamber is the airtight equipment that is isolated from the outside of factors such as manual control temperature, humidity, wind speed, cleanliness factor, air pressure and gas componant; Be called phytotron; Environmental chamber is widely used in the middle of the field of automobile test, and people pass through the setting to the parameters of environmental chamber, simulate some particular environment; Some functions of automobile are made an experiment, but tend to produce tail gas in the process.
The existing environmental chamber waste discharge system that nowadays uses adopts pipeline to connect automobile tail gas pipe; Again by the fan outwards exhausting of bleeding; With motor vehicle exhaust emission outside environmental chamber, but since process of the test in some operating condition of test more abominable, can cause since the exhaust emissions amount bigger; And, and make tail gas discharge environmental chamber and reveal in the environmental chamber the inside because the higher connecting pipe that causes of exhaust temperature expands because of principle of expanding with heat and contracting with cold.
In order to address this problem, people tend to directly strengthen the exhausting flow of exhaust fan, but need be to blower voltage and electric current and other parameter from newly setting; Tend to occur deviation, cause the exhausting flow still not enough, perhaps the exhausting flow is too big; When the exhausting flow was not enough, problem was not resolved, when the exhausting flow is too big; Can bring bigger noise and the power consumption that increases equipment; Therefore this method needs manually-operated to be easy to cause error, operates more loaded down with trivial detailsly, can not well get a desired effect.
Summary of the invention
There are the problems referred to above in the utility model to existing technology, has proposed a kind of vehicle exhaust pump drainage thermostat, and this vehicle exhaust pump drainage thermostat can be adjusted to corresponding rotation speed of fan automatically, makes the different exhaust emissions amounts that adapt to.
The utility model is realized through following technical proposal: a kind of environmental chamber vehicle exhaust pump drainage thermostat; Comprise blower fan, it is characterized in that described air inlet is connected with connecting pipe with air inlet and air outlet; Be provided with the temperature sensor of gathering the vehicle exhaust temperature in the described connecting pipe; Described temperature sensor is connected with master controller, and described master controller also is connected with the control module of control rotation speed of fan, and described control module is connected with the motor of blower fan.
Temperature sensor in the connecting pipe is gathered the temperature of vehicle exhaust, and sends temperature signal to master controller.Master controller stores after receiving temperature signal; And compare signal after handling and the interior temperature parameter of master controller; Set the control module that transmits control signal to the control rotation speed of fan according to corresponding logic; Control module is regulated rotation speed of fan according to the instruction of control signal.Through monitoring temperature to vehicle exhaust, control the rotating speed of blower fan timely, accomplish pump drainage automatically to the different exhaust emissions amounts of automobile test in the environmental chamber.
In above-mentioned environmental chamber vehicle exhaust pump drainage thermostat, described master controller is a programmable logic controller (PLC).Programmable logic controller (PLC), it adopts one type of programmable memory, is used for its internally stored program, actuating logic computing, sequential control, regularly, user oriented instruction such as counting and arithmetical operation.Programmable logic controller (PLC) is carried out logic set, can send logical order according to the temperature signal of correspondence.
In above-mentioned environmental chamber vehicle exhaust pump drainage thermostat, described control module comprises a frequency converter, and described frequency converter is connected with power supply, and the communication interface of described frequency converter is connected with the master controller communication interface.Frequency converter receives the control signal of main control, through changing the size of frequency, exports the motor of different electric current fans, controls the rotating speed of fan coil.Through frequency converter can regulating frequency size, can change the rotating speed of blower fan preferably.
In above-mentioned environmental chamber vehicle exhaust pump drainage thermostat, a through hole is arranged in the middle of the described connecting pipe, described temperature sensor sealing is arranged in the through hole in the middle of the connecting pipe.Temperature sensor is arranged in the connecting pipe, can gather the temperature of vehicle exhaust accurately, makes the temperature of collection more accurate.
In above-mentioned environmental chamber vehicle exhaust pump drainage thermostat, described connecting pipe two ends are to be processed by stainless steel, and described connecting pipe is in environmental chamber.The connecting pipe two ends adopt stainless steel can prevent effectively that the connecting pipe two ends are corroded easily by the tail gas corrosion.
In above-mentioned environmental chamber vehicle exhaust pump drainage thermostat; The external diameter of said air inlet is identical with the internal diameter of fan outlet; Described blower fan comprises blower fan one and blower fan two; The air outlet of said blower fan two vertically upward, the air inlet of said blower fan one is inserted in the air outlet of blower fan two, described blower fan is arranged on outside the environmental chamber.Adopt two blower fans can strengthen pump drainage, prevent the leakage of vehicle exhaust vehicle exhaust.Blower fan one is inserted in the air outlet vertical display of blower fan two outside environmental chamber, because the external diameter of air inlet is identical with the internal diameter of fan outlet, the connection between blower fan one and the blower fan two can well prevent that tail gas from spilling.
In above-mentioned environmental chamber vehicle exhaust pump drainage thermostat, the external diameter of described connecting pipe internal diameter and air inlet is identical, and described connecting pipe is connected with automobile exhaust pipe, and the internal diameter of said connecting pipe is identical with the auto exhaust external diameter of pipe.Connection between automobile exhaust pipe and the connecting pipe is complementary, vehicle exhaust few with temperature not high in, can prevent that the vehicle exhaust leakage is in environmental chamber.
Compared with prior art, this environmental chamber vehicle exhaust pump drainage thermostat has the following advantages:
1, the utility model is that the temperature sensor of gathering the vehicle exhaust temperature is arranged in the connecting pipe, gives master controller with the temperature signal that collects, and is come blower fan is controlled by master controller.Manually-operated loaded down with trivial details and the error that occurs have so just been avoided.
2, the utility model has increased temperature sensor and the frequency converter of gathering vehicle exhaust, makes the environmental chamber exhaust device can control the vehicle exhaust that rotation speed of fan adapts to different flow automatically, has good practicability.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model.
Fig. 2 is the structural representation of the utility model.
Among the figure, 1, blower fan one; 2, blower fan two; 3, connecting pipe; 4, temperature sensor; 5, master controller; 6, frequency converter.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Like Fig. 1, shown in Figure 2; This environmental chamber vehicle exhaust pump drainage thermostat; Comprise the blower fan with air inlet and air outlet, the external diameter of air inlet is identical with the internal diameter of fan outlet, and blower fan comprises blower fan 1 and blower fan 2; The air outlet of blower fan 2 vertically upward, the air inlet of blower fan 1 is inserted in the air outlet of blower fan 22.The internal diameter of connecting pipe 3 is identical with the external diameter of air inlet, and the air inlet of blower fan 22 is connected with connecting pipe 3, and connecting pipe 3 is connected with automobile exhaust pipe, and wherein, the internal diameter of connecting pipe 3 is identical with the auto exhaust external diameter of pipe.Be provided with the temperature sensor 4 of gathering the vehicle exhaust temperature in the connecting pipe 3; Temperature sensor 4 sealings are arranged in the through hole in the middle of the connecting pipe 3; Temperature sensor 4 is connected with master controller 5, and master controller 5 also is connected with the control module of control rotation speed of fan, and control module comprises a frequency converter 6; Frequency converter 6 connects power supply, and frequency converter 6 also is connected with the motor of blower fan.
When the operating condition of test in the environmental chamber was better, blower fan 1 and blower fan 22 be with low-speed running, the temperature sensor 4 in connecting pipe 3; When the temperature value that collects was higher, temperature sensor 4 sent to master controller 5 with current temperature signal, and master controller 5 stores after receiving temperature signal; And compare signal after handling and master controller 5 interior temperature parameters; Set the frequency converter 6 that transmits control signal to the control rotation speed of fan according to corresponding logic, frequency converter 6 is according to the instruction of control signal, regulating frequency; The power of output is become big, blower fan 1 and blower fan 22 are turned round with middling speed.After temperature reached the setting value limit value, temperature rising linear trend was directly proportional with the power of frequency converter 6 outputs, thereby made the rotating speed of blower fan satisfy the requirement that current motor vehicle exhaust emission amount is discharged environmental chamber.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as blower fan 1, blower fan 22, connecting pipe 3, temperature sensor 4, master controller 5, frequency converter 6 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (7)
1. environmental chamber vehicle exhaust pump drainage thermostat; Comprise blower fan, it is characterized in that described air inlet is connected with connecting pipe (3) with air inlet and air outlet; Be provided with the temperature sensor (4) of gathering the vehicle exhaust temperature in the described connecting pipe (3); Described temperature sensor (4) is connected with master controller (5), and described master controller (5) also is connected with the control module of control rotation speed of fan, and described control module is connected with the motor of blower fan.
2. environmental chamber vehicle exhaust pump drainage thermostat according to claim 1 is characterized in that described master controller (5) is a programmable logic controller (PLC).
3. environmental chamber vehicle exhaust pump drainage thermostat according to claim 1 and 2; It is characterized in that; Described control module comprises a frequency converter (6); Described frequency converter (6) is connected with power supply, and the communication interface of described frequency converter (6) is connected with master controller (5) communication interface.
4. environmental chamber vehicle exhaust pump drainage thermostat according to claim 1 is characterized in that, a through hole is arranged in the middle of the described connecting pipe (3), and described temperature sensor (4) sealing is arranged in the through hole in the middle of the connecting pipe (3).
5. environmental chamber vehicle exhaust pump drainage thermostat according to claim 4 is characterized in that described connecting pipe (3) two ends are to be processed by stainless steel, and described connecting pipe (3) is in environmental chamber.
6. according to claim 1 or 4 or 5 described environmental chamber vehicle exhaust pump drainage thermostats; It is characterized in that; The external diameter of said air inlet is identical with the internal diameter of fan outlet, and described blower fan comprises blower fan one (1) and blower fan two (2), and the air outlet of said blower fan two (2) vertically upward; The air inlet of said blower fan one (1) is inserted in the air outlet of blower fan two (2), and described blower fan is arranged on outside the environmental chamber.
7. environmental chamber vehicle exhaust pump drainage thermostat according to claim 6; It is characterized in that; The external diameter of described connecting pipe (3) internal diameter and air inlet is identical; Described connecting pipe (3) is connected with automobile exhaust pipe, and the internal diameter of said connecting pipe (3) is identical with the auto exhaust external diameter of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254712 CN202632137U (en) | 2012-05-29 | 2012-05-29 | Automatic temperature control device for automobile exhaust extraction of environmental chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220254712 CN202632137U (en) | 2012-05-29 | 2012-05-29 | Automatic temperature control device for automobile exhaust extraction of environmental chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632137U true CN202632137U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220254712 Expired - Fee Related CN202632137U (en) | 2012-05-29 | 2012-05-29 | Automatic temperature control device for automobile exhaust extraction of environmental chamber |
Country Status (1)
| Country | Link |
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| CN (1) | CN202632137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608262A (en) * | 2017-09-05 | 2018-01-19 | 无锡吉兴汽车声学部件科技有限公司 | A kind of laboratory vehicle exhaust concentration intelligence control system |
-
2012
- 2012-05-29 CN CN 201220254712 patent/CN202632137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107608262A (en) * | 2017-09-05 | 2018-01-19 | 无锡吉兴汽车声学部件科技有限公司 | A kind of laboratory vehicle exhaust concentration intelligence control system |
| CN107608262B (en) * | 2017-09-05 | 2020-10-09 | 无锡吉兴汽车声学部件科技有限公司 | Intelligent control system for concentration of automobile exhaust in laboratory |
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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: 20121226 Termination date: 20140529 |