CN205034106U - Environment -friendly vacuum pump controller - Google Patents
Environment -friendly vacuum pump controller Download PDFInfo
- Publication number
- CN205034106U CN205034106U CN201520813831.0U CN201520813831U CN205034106U CN 205034106 U CN205034106 U CN 205034106U CN 201520813831 U CN201520813831 U CN 201520813831U CN 205034106 U CN205034106 U CN 205034106U
- Authority
- CN
- China
- Prior art keywords
- signal
- pressure
- circuit
- mcu module
- electrically connected
- 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
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses an electric automobile brake helping hand technical field's an environment -friendly vacuum pump controller, including casing, circuit board, install the pressure that is used for docking the buffer tank on the casing and connect, be equipped with MCU module, output driver circuit, voltage detection circuit, voltage stabilizing circuit on the circuit board, the circuit board still is equipped with silicon pressure drag formula pressure sensor, be used for detecting silicon pressure drag formula pressure sensor operating temperature's temperature sensor, be used for enlargeing silicon pressure drag formula pressure sensor signal the first signal amplifier circuit, be used for enlargeing the second signal amplifier circuit of temperature sensor signal, silicon pressure drag formula pressure sensor's response is correcied the passageway and is pasted in voltage detection circuit 3 department, the during operation, pressure signal can be revised according to the temperature signal that temperature sensor produced to the MCU module. Can very accurately detect the pressure in the buffer tank to but autotrigger vacuum pump motor when the pressure in the buffer tank is higher than set pressure.
Description
Technical field
The utility model relates to electronlmobil technical field of brake power assistance, particularly a kind of controller for vacuum pump.
Background technology
Electronlmobil brake assist system is by vacuum pump, expansion tank, pressure switch, form for the controller controlling vacuum pump.The pressure detected in expansion tank when pressure switch just sends signal higher than during setting value, after controller for vacuum pump receives the signal of pressure switch, switch on power to vacuum pump, expansion tank vacuumizes by vacuum pump, make pressure in expansion tank not higher than setting value, so that the carrying out smoothly of brake process.Air pump power supply is cut off, until again receive energizing signal after delaying time of controller a period of time.
Because pressure switch is mechanical switch, pressure signal detects inaccurate, and just an on-off signal, can not detect the concrete pressure in expansion tank, be unfavorable for the accurate control of pressure.
Utility model content
The purpose of this utility model is to provide a kind of environment protection type vacuum pump controller, can detect the pressure in expansion tank very exactly, and when the pressure in expansion tank can trigger vaccum pump motor automatically higher than during setting pressure.
The purpose of this utility model is achieved in that a kind of environment protection type vacuum pump controller, comprise housing, be arranged on the circuit card of housing cavity, described housing is provided with connect with housing cavity, for docking the compression fittings of expansion tank, described compression fittings is provided with the passage for connecting housing cavity and expansion tank, described circuit card is provided with MCU module, described circuit card is also provided with that its input end and MCU module signal output part be electrically connected, the output driving circuit that its mouth and vaccum pump motor input end are electrically connected, described circuit card is also provided with that its mouth and MCU module signal input part be electrically connected, the voltage detecting circuit that its input end and direct supply are electrically connected, described circuit card is also provided with that its mouth and MCU module energy input end be electrically connected, the mu balanced circuit that its input end and direct supply are electrically connected, described circuit card is also provided with the silicon piezoresistance type pressure sensor that can produce pressure signal, be equipped with silicon piezoresistance type pressure sensor and temperature sensor for detecting silicon piezoresistance type pressure sensor operating temperature, for amplifying the first signal amplification circuit of silicon piezoresistance type pressure sensor signal, for amplifying the secondary signal amplifying circuit of temperature sensor signal, described first signal amplification circuit, the mouth of secondary signal amplifying circuit and the signal input part of MCU module are electrically connected, the induction of described silicon piezoresistance type pressure sensor is rectified passage and is attached to feeder connection place, during work, the temperature signal that described MCU module can produce according to temperature sensor revises pressure signal.
During utility model works, when silicon piezoresistance type pressure sensor detects that pressure in expansion tank is higher than preset value, the pressure signal that silicon piezoresistance type pressure sensor generates reaches MCU module after the amplification of the first signal amplification circuit, control signal exports by MCU module, control signal is passed to vaccum pump motor through output driving circuit, vaccum pump motor starts and reduces the pressure in expansion tank, pressure in expansion tank can be dropped in certain limit, when the pressure that silicon piezoresistance type pressure sensor detects in expansion tank is less than preset value and is in certain limit, MCU module gives the signal of vaccum pump motor stall by output driving circuit, vaccum pump motor stall.
Compared with prior art, the beneficial effects of the utility model are: the real-time signal of timely acquisition buffer tank internal pressure is convenient in the setting of silicon piezoresistance type pressure sensor, need not time delay again, the action of vaccum pump motor is directly decided by the pressure size in expansion tank, accuracy rate, sensitivity, reliability are improved, energy consumption reduces greatly, and the service life of vacuum pump can be guaranteed; Start vaccum pump motor in time by the process of MCU module, make vacuum pump reduce pressure in expansion tank in time, the pressure in expansion tank can be dropped in certain limit, be convenient to carrying out smoothly of brake process; The setting of temperature sensor is the operating temperature in order to detect silicon piezoresistance type pressure sensor, temperature signal can be inputted MCU module, then MCU module can according to temperature signal correction pressure signal, to ensure that pressure signal that MCU module exports can pressure exactly in corresponding expansion tank.
As further improvement of the utility model, described circuit card is also provided with alarm module, described alarm module and MCU module signal output part are electrically connected, when MCU module monitors fault and breakdown signal is outputted to alarm module, described alarm module is in running order, if trouble free signal, described alarm module quits work.Further enhancing alert capability.
Accompanying drawing explanation
Fig. 1 is control planning schematic diagram of the present utility model.
Fig. 2 is assembling schematic diagram of the present utility model.
Wherein, 1 silicon piezoresistance type pressure sensor, 2 temperature sensors, 3MCU module, 4 housings, 5 circuit cards, 6 compression fittingss, 6a passage, 7 output driving circuits, 8 secondary signal amplifying circuits, 9 first signal amplification circuits, 10 direct supplys, 11 vaccum pump motors, 12 voltage detecting circuits, 13 mu balanced circuits, 14 alarm modules.
Detailed description of the invention
As shown in Figure 1-2, a kind of environment protection type vacuum pump controller, comprise housing 4, be arranged on the circuit card 5 of housing 4 inner chamber, housing 4 is provided with connect with housing 4 inner chamber, for docking the compression fittings 6 of expansion tank, compression fittings 6 is provided with the passage 6a for connecting housing 4 inner chamber and expansion tank, circuit card 5 is provided with MCU module 3, circuit card 5 is also provided with that its input end and MCU module 3 signal output part be electrically connected, the output driving circuit 7 that its mouth and vaccum pump motor 11 input end are electrically connected, circuit card 5 is also provided with that its mouth and MCU module 3 signal input part be electrically connected, the voltage detecting circuit 12 that its input end and direct supply 10 are electrically connected, circuit card 5 is also provided with that its mouth and MCU module 3 energy input end be electrically connected, the mu balanced circuit 13 that its input end and direct supply 10 are electrically connected, circuit card 5 is also provided with the silicon piezoresistance type pressure sensor 1 that can produce pressure signal, and temperature sensor 2 for detect silicon piezoresistance type pressure sensor 1 operating temperature equipped with silicon piezoresistance type pressure sensor 1, for amplifying the first signal amplification circuit 9 of silicon piezoresistance type pressure sensor 1 signal, for amplifying the secondary signal amplifying circuit 8 of temperature sensor 2 signal, first signal amplification circuit 9, the mouth of secondary signal amplifying circuit 8 and the signal input part of MCU module 3 are electrically connected, the induction of silicon piezoresistance type pressure sensor 1 is rectified passage 6a and is attached to passage 6a entrance, during work, the temperature signal that MCU module 3 can produce according to temperature sensor 2 revises pressure signal.
During work, when silicon piezoresistance type pressure sensor 1 detects that pressure in expansion tank is higher than preset value, the pressure signal that silicon piezoresistance type pressure sensor 1 generates reaches MCU module 3 after the amplification of the first signal amplification circuit 9, control signal exports by MCU module 3, control signal is passed to vaccum pump motor 11 through output driving circuit 7, vaccum pump motor 11 starts and reduces the pressure in expansion tank, pressure in expansion tank can be dropped in certain limit, when the pressure that silicon piezoresistance type pressure sensor 1 detects in expansion tank is less than preset value and is in certain limit, MCU module 3 gives the signal of vaccum pump motor 11 stall by output driving circuit 7, vaccum pump motor 11 stall.
Foregoing circuit plate 5 is also provided with alarm module 14, alarm module 14 and MCU module 3 signal output part are electrically connected, and when MCU module 3 monitors fault and breakdown signal is outputted to alarm module 14, alarm module 14 is in running order, if trouble free signal, alarm module 14 quits work.
The utility model is not limited to above-described embodiment; on the basis of technical scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in protection domain of the present utility model.
Claims (2)
1. an environment protection type vacuum pump controller, comprise housing (4), be arranged on the circuit card (5) of housing (4) inner chamber, described housing (4) is provided with connect with housing (4) inner chamber, for docking the compression fittings (6) of expansion tank, described compression fittings (6) is provided with the passage (6a) for connecting housing (4) inner chamber and expansion tank, described circuit card (5) is provided with MCU module (3), described circuit card (5) is also provided with that its input end and MCU module (3) signal output part be electrically connected, the output driving circuit (7) that its mouth and vaccum pump motor (11) input end are electrically connected, described circuit card (5) is also provided with that its mouth and MCU module (3) signal input part be electrically connected, the voltage detecting circuit (12) that its input end and direct supply (10) are electrically connected, described circuit card (5) is also provided with that its mouth and MCU module (3) energy input end be electrically connected, the mu balanced circuit (13) that its input end and direct supply (10) are electrically connected, it is characterized in that: described circuit card (5) is also provided with the silicon piezoresistance type pressure sensor (1) that can produce pressure signal, and temperature sensor (2) for detect silicon piezoresistance type pressure sensor (1) operating temperature equipped with silicon piezoresistance type pressure sensor (1), for amplifying first signal amplification circuit (9) of silicon piezoresistance type pressure sensor (1) signal, for amplifying the secondary signal amplifying circuit (8) of temperature sensor (2) signal, described first signal amplification circuit (9), the mouth of secondary signal amplifying circuit (8) and the signal input part of MCU module (3) are electrically connected, the induction of described silicon piezoresistance type pressure sensor (1) is rectified passage (6a) and is attached to passage (6a) entrance, during work, the temperature signal that described MCU module (3) can produce according to temperature sensor (2) revises pressure signal.
2. a kind of environment protection type vacuum pump controller according to claim 1, it is characterized in that: described circuit card (5) is also provided with alarm module (14), described alarm module (14) and MCU module (3) signal output part are electrically connected, when MCU module (3) monitors fault and breakdown signal is outputted to alarm module (14), described alarm module (14) is in running order, if trouble free signal, described alarm module (14) quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813831.0U CN205034106U (en) | 2015-10-21 | 2015-10-21 | Environment -friendly vacuum pump controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813831.0U CN205034106U (en) | 2015-10-21 | 2015-10-21 | Environment -friendly vacuum pump controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205034106U true CN205034106U (en) | 2016-02-17 |
Family
ID=55293030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520813831.0U Expired - Fee Related CN205034106U (en) | 2015-10-21 | 2015-10-21 | Environment -friendly vacuum pump controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205034106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216775A (en) * | 2015-10-21 | 2016-01-06 | 扬州金铭电子科技有限公司 | A kind of environment protection type vacuum pump controller |
| CN106741437A (en) * | 2016-12-28 | 2017-05-31 | 张力弘 | A kind of device for preventing electric motor car or motorcycle maloperation |
-
2015
- 2015-10-21 CN CN201520813831.0U patent/CN205034106U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216775A (en) * | 2015-10-21 | 2016-01-06 | 扬州金铭电子科技有限公司 | A kind of environment protection type vacuum pump controller |
| CN106741437A (en) * | 2016-12-28 | 2017-05-31 | 张力弘 | A kind of device for preventing electric motor car or motorcycle maloperation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110084632A1 (en) | Circuit for controlling rotation speed of computer fan | |
| CN203384069U (en) | Induced draft fan | |
| CN205034106U (en) | Environment -friendly vacuum pump controller | |
| CN204374725U (en) | A kind of nothing arranges the mould height indicator of device and externally arranges device | |
| CN202757808U (en) | Constant-flow air sampler | |
| CN202772858U (en) | Soyabean milk machine with power cut memory circuit | |
| CN105216775A (en) | A kind of environment protection type vacuum pump controller | |
| CN103362790B (en) | A kind of air compressor control system and control method thereof | |
| CN201917651U (en) | Self-checking circuit for residual current detection ring | |
| CN205801090U (en) | Electric motor car electric controlled brake system and electric motor car | |
| CN211058992U (en) | Signal detection device for water pump control | |
| CN202583105U (en) | Methane sensor | |
| CN203835691U (en) | Air pump automatic control device | |
| CN203254034U (en) | Temperature control exhaust fan circuit of iron stand | |
| CN203287128U (en) | Pressure detection and protection circuit | |
| CN202929051U (en) | Underground calibrator of air velocity transducer for mine | |
| CN202231662U (en) | Energy-saving generator excitation device | |
| CN206582105U (en) | A kind of source pump pump capacity feedback control system | |
| CN202066868U (en) | On-line range switching anemometer for window detecting instrument | |
| CN218917583U (en) | Special lithium cell detection device of navigation mark | |
| CN203825028U (en) | Signal conditioning circuit for magnetoelectric tachometric transducer | |
| CN103423138A (en) | Energy-saving intelligent control device of air compressor | |
| CN211653118U (en) | Universal detection system for diesel engine controller | |
| CN202468250U (en) | Automatic adjustment pneumatic gas pump | |
| CN202274650U (en) | Water heater with constant current anticorrosion control device |
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: 20160217 Termination date: 20171021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |