CN207994918U - A kind of air-conditioning refrigeration system control circuit - Google Patents
A kind of air-conditioning refrigeration system control circuit Download PDFInfo
- Publication number
- CN207994918U CN207994918U CN201820406704.2U CN201820406704U CN207994918U CN 207994918 U CN207994918 U CN 207994918U CN 201820406704 U CN201820406704 U CN 201820406704U CN 207994918 U CN207994918 U CN 207994918U
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- Prior art keywords
- triode
- terminal
- air
- diode
- refrigeration system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a kind of air-conditioning refrigeration system control circuits, including control unit, the first triode, the first diode and capacitance, described control unit is connected with the base terminal of first triode, the collector terminal of first triode is connected with the first end of the forward end of first diode and the capacitance, and the forward end of first diode is connected with the first end of the capacitance；The air-conditioning refrigeration system control circuit of the utility model, by increasing capacitance and the first diode in circuit, it can prevent the voltage jump of external circuit, the inverse electromotive force of external circuit is consumed, obtain the effect of electromagnetism interference, compared with prior art, the circuit stability and Electro Magnetic Compatibility of the utility model be more preferably.
Description
Technical field
The utility model is related to Full Vehicle System technical field, especially a kind of air-conditioning refrigeration system control circuit.
Background technology
With the development of Vehicular intelligent and automation, the electrical appliance on vehicle is more and more, and function also becomes increasingly complex.Together
When, corresponding electromagnetic interference signal is consequently increased, this just proposes the anti-electromagnetic interference capability of electrical appliance internal circuit and wants
It asks.
It before commercial car air-conditioning system condenser is arranged in water tank, is cooled down by engine blower, engine blower rotating speed
Speed influences the heat dissipation effect of condenser, and then directly affects the refrigeration effect of air-conditioning entirety；Present engine fan is by starting
Machine water temperature controls, and not by airconditioning control, and then the scene of air conditioner refrigeration effect difference occurs.
Therefore, it is necessary to a kind of air-conditioning refrigeration system control circuit be provided, to be improved to the above situation.
Utility model content
The purpose of this utility model is to provide a kind of air-conditioning refrigeration system control circuit, to solve air-conditioning in the prior art
The stronger technical problem of electromagnetic interference signal existing for refrigeration system control circuit, it can improve the electromagnetism interference energy of circuit
Power improves the stability of circuit.
To achieve the goals above, the utility model provides the following technical solution：
A kind of air-conditioning refrigeration system control circuit, including control unit, the first triode, the first diode and capacitance, institute
It states control unit with the base terminal of first triode to be connected, the collector terminal of first triode and the one or two pole
The first end of the forward end of pipe and the capacitance is connected, the forward end of first diode and the first end phase of the capacitance
Even.
Preferably, further include the first relay, the current collection of the control terminal of first relay and first triode
Extreme to be connected, the controlled terminal of first relay is connected with compressor.
Preferably, it is additionally provided with pressure between the control terminal of first relay and the collector terminal of first triode
Switch.
Preferably, further include the second diode, the current collection of the negative end of second diode and first triode
It is extreme to be connected, the forward end of second diode first end with the forward end of first diode, the capacitance respectively
And the control terminal of first relay is connected.
Preferably, further include the second triode and the second relay, base terminal and the control of second triode
Unit is connected, and the collector terminal of second triode is connected with the control terminal of second relay, second relay
Controlled terminal be connected with ECU.
Preferably, the emitter terminal ground connection of first triode.
Preferably, the second end ground connection of the capacitance.
Preferably, the emitter terminal ground connection of second triode.
Preferably, further include first resistor, described first resistor one end respectively with described control unit and described first
The base terminal of triode connects, other end ground connection.
Preferably, further include second resistance, described second resistance one end respectively with described control unit and described second
The base terminal of triode connects, other end ground connection.
The beneficial effects of the utility model are：
The utility model provides a kind of air-conditioning refrigeration system control circuit, including control unit, the first triode, first
Diode and capacitance, described control unit are connected with the base terminal of first triode, the collector of first triode
End is connected with the first end of the forward end of first diode and the capacitance, the forward end of first diode and institute
The first end for stating capacitance is connected；The air-conditioning refrigeration system control circuit of the utility model, by increasing capacitance and in circuit
One diode can prevent the voltage jump of external circuit, and the inverse electromotive force of external circuit is consumed, and it is dry to obtain anti-electromagnetism
The effect disturbed, compared with prior art, the circuit stability and Electro Magnetic Compatibility of the utility model are more preferably.
Description of the drawings
Fig. 1 is the structural schematic diagram of the air-conditioning refrigeration system control circuit of the utility model embodiment.
Reference sign：
1- control units, the first triodes of 2-, the first diodes of 3-, 4- capacitances, the first relays of 5-, 6- compressors, 7-
Pressure switch, the second diodes of 8-, the second triodes of 9-, the second relays of 10-, 11-ECU, 12- first resistors, the second electricity of 13-
Resistance, the first power supplys of 14-, 15- second sources, 16- third power supplys.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
As shown in Figure 1, the embodiments of the present invention provide a kind of air-conditioning refrigeration system control circuit, including control unit
1, the first triode 2, the first diode 3 and capacitance 4, described control unit 1 are connected with the base terminal of first triode 2,
The collector terminal of first triode 2 is connected with the first end of the forward end of first diode 3 and the capacitance 4,
The forward end of first diode 3 is connected with the first end of the capacitance 4.Wherein, the collector terminal of the first triode 2 is preferred
It is connect with external circuit.Control unit 1 is preferably microcontroller.
The application method of the utility model：It mutates in the voltage of external circuit, so that being generated to internal circuit anti-
To either internal circuit itself produces the pulse voltage backward voltage when voltage or pulse voltage can be by the first diode
3 and the circuit acting that constitutes of capacitance 4 and consume, to protect the safety of other elements in circuit, obtain and eliminate peak voltage
And the effect of electromagnetism interference, compared with prior art, the circuit stability and Electro Magnetic Compatibility of the utility model are more
It is good.
On the basis of above structure, the utility model further preferably includes the first relay 5, first relay 5
Control terminal is connected with the collector terminal of first triode 2, and the controlled terminal of first relay 5 is connected with compressor 6.The
The control terminal of one relay 5 is generally made of coil, and controlled terminal generally switchs.The control terminal of first relay 5 and the first electricity
Source 14 is connected, and controlled terminal is connected with second source 15, and after the first power supply 14 opening, control unit 1 sends air-conditioning open signal,
By controlling the voltage of the base terminal of the first triode 2, the first triode 2 is enabled to be connected, then the control terminal of the first relay 5 is logical
Electricity, so that the controlled terminal conducting of the first relay 5, second source 15 is that compressor 6 provides voltage, and compressor 6 starts work
Make.In this process, if the electric current in the control terminal of the first relay 5 suddenly disappears, the induced electromotive force of control terminal can be to electricity
Element in road generates backward voltage or internal circuit itself produces pulse voltage suddenly, and the in internal circuit the 1st
Pole pipe 3 and capacitance 4, which can be respectively formed circuit, enables the backward voltage or pulse voltage acting be consumed, and protects its in circuit
His element prevents backward voltage or pulse voltage to be higher than the breakdown reverse voltage of element, causes the member of such as the first triode 2
The damage of part.The utility model eliminates the function of peak voltage, and the pcb board for being also prevented from internal circuit is being welded or assembled
When, since static electricity on human body causes its builtin voltage to be mutated, so that the first triode 2 is breakdown.
In order to which system pressure when ensureing circuit turn-on is normal, the control terminal of first relay 5 and the described 1st
Pressure switch 7 is also preferably equipped between the collector terminal of pole pipe 2.Under the conditions of system pressure is normal, pressure switch 7 can just close
It closes, by circuit turn-on.
Further, the utility model further includes the second diode 8, the negative end of second diode 8 and described the
The collector terminal of one triode 2 is connected, the forward end of second diode 8 respectively with the forward end of first diode 3,
The first end of the capacitance 4 and the control terminal of first relay 5 are connected.The setting of second diode 8, can play anti-
Only the pulse voltage of internal circuit or electrostatic etc. harass external circuit, avoid interfering external circuit.
Preferably, the utility model further includes the second triode 9 and the second relay 10, the base of second triode 9
Extremely it is connected with described control unit 1, the control terminal phase of the collector terminal of second triode 9 and second relay 10
Even, the controlled terminal of second relay 10 is connected with ECU11.The control terminal of second relay 10 is connect with third power supply 16,
After third power supply 16 is opened and air-conditioning is opened, control unit 1 can send air-conditioning open signal, by controlling the second triode 9
The voltage of base terminal enable the second triode 9 be connected, the control terminal of the second relay 10 is powered, and then enables the second relay 10
Controlled terminal is powered, and ECU11 is driven to be powered, and the engine blower speed that ECU11 reception control units 1 are sent out is enabled to promote request letter
Number, to control engine blower, engine blower is made also to be controlled by air conditioning condition, promotes the refrigeration effect of air-conditioning
Fruit.
For the ease of the conducting of the first triode 2, the emitter terminal of first triode 2 is grounded.
It is formed into a loop for the ease of capacitance 4, and largely consumes backward voltage and pulse voltage, the capacitance 4
Second end ground connection.
In addition, the emitter terminal of second triode 9 is it is also preferred that ground connection, is conducive to the conducting convenient for the second triode 9.
In order to which the voltage of each element between control unit 1 and the first relay 5 is adjusted, the utility model is also
Including first resistor 12,12 one end of the first resistor respectively with described control unit 1 and the base stage of first triode 2
End connection, other end ground connection.
Similarly, in order to which the voltage of each element between control unit 1 and the second relay 10 is adjusted, this practicality
Novel further includes second resistance 13,13 one end of the second resistance respectively with described control unit 1 and second triode 9
Base terminal connection, the other end ground connection.
The structure, feature and effect of the utility model are described in detail based on the embodiments shown in the drawings, with
Upper described is only the preferred embodiment of the utility model, but the utility model is to limit practical range shown in drawing, it is every according to
Change made by conception according to the utility model, or be revised as the equivalent embodiment of equivalent variations, still without departing from specification and figure
When showing covered spirit, it should be within the protection scope of the present utility model.
Claims (10)
1. a kind of air-conditioning refrigeration system control circuit, which is characterized in that including control unit (1), the first triode (2), first
Diode (3) and capacitance (4), described control unit (1) are connected with the base terminal of first triode (2), and the described 1st
The collector terminal of pole pipe (2) is connected with the first end of the forward end of first diode (3) and the capacitance (4), described
The forward end of first diode (3) is connected with the first end of the capacitance (4).
2. air-conditioning refrigeration system control circuit according to claim 1, which is characterized in that further include the first relay (5),
The control terminal of first relay (5) is connected with the collector terminal of first triode (2), first relay (5)
Controlled terminal be connected with compressor (6).
3. air-conditioning refrigeration system control circuit according to claim 2, which is characterized in that first relay (5)
Pressure switch (7) is additionally provided between control terminal and the collector terminal of first triode (2).
4. air-conditioning refrigeration system control circuit according to claim 2, which is characterized in that further include the second diode (8),
The negative end of second diode (8) is connected with the collector terminal of first triode (2), second diode (8)
Forward end respectively with the forward end of first diode (3), the first end of the capacitance (4) and first relay
(5) control terminal is connected.
5. air-conditioning refrigeration system control circuit according to claim 1, which is characterized in that further include the second triode (9)
It is connected with described control unit (1) with the base terminal of the second relay (10), second triode (9), the two or three pole
Pipe (9) collector terminal be connected with the control terminal of second relay (10), the controlled terminal of second relay (10) and
ECU (11) is connected.
6. air-conditioning refrigeration system control circuit according to claim 1, which is characterized in that first triode (2)
Emitter terminal is grounded.
7. air-conditioning refrigeration system control circuit according to claim 1, which is characterized in that the second end of the capacitance (4)
Ground connection.
8. air-conditioning refrigeration system control circuit according to claim 5, which is characterized in that second triode (9)
Emitter terminal is grounded.
9. according to claim 1-8 any one of them air-conditioning refrigeration system control circuits, which is characterized in that further include the first electricity
Hinder (12), described first resistor (12) one end respectively with described control unit (1) and the base terminal of first triode (2)
Connection, other end ground connection.
10. air-conditioning refrigeration system control circuit according to claim 5, which is characterized in that further include second resistance (13),
Described second resistance (13) one end is connect with the base terminal of described control unit (1) and second triode (9) respectively, separately
One end is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820406704.2U CN207994918U (en) | 2018-03-23 | 2018-03-23 | A kind of air-conditioning refrigeration system control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820406704.2U CN207994918U (en) | 2018-03-23 | 2018-03-23 | A kind of air-conditioning refrigeration system control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207994918U true CN207994918U (en) | 2018-10-19 |
Family
ID=63828935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820406704.2U Expired - Fee Related CN207994918U (en) | 2018-03-23 | 2018-03-23 | A kind of air-conditioning refrigeration system control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207994918U (en) |
-
2018
- 2018-03-23 CN CN201820406704.2U patent/CN207994918U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 |