CN211000829U - Electric automobile temperature adjusting device and control system thereof and electric automobile - Google Patents
Electric automobile temperature adjusting device and control system thereof and electric automobile Download PDFInfo
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- CN211000829U CN211000829U CN201921077251.4U CN201921077251U CN211000829U CN 211000829 U CN211000829 U CN 211000829U CN 201921077251 U CN201921077251 U CN 201921077251U CN 211000829 U CN211000829 U CN 211000829U
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Abstract
The utility model relates to an electric automobile temperature regulation device and control system and electric automobile thereof, this control system realizes the temperature regulation and control to electric automobile temperature regulation device through the interlocking relay, the interlocking relay includes coil part, a normally closed contact and a normally open contact, one of them contact is connected with the refrigeration control branch road, another contact is connected with the heating control branch road; a coil of a refrigeration control switch is arranged on the refrigeration control branch in series, and a contact of the refrigeration controller switch is used for being arranged on the compressor power supply branch in series; and a coil of the heating control switch is serially arranged on the heating control branch, and a contact of the heating control switch is used for being serially arranged on the PTC power supply branch. The utility model discloses make constantly can only be in the refrigeration state, perhaps can only be in the state of heating, perhaps out of work, prevent to refrigerate and heat simultaneous working, prevent that the energy is extravagant, improve the security.
Description
Technical Field
The utility model belongs to the technical field of electric automobile, concretely relates to electric automobile temperature regulation apparatus and control system and electric automobile thereof.
Background
The temperature regulation of the electric vehicle includes two aspects, namely, the realization of refrigeration, generally realized by an air conditioner compressor, and the realization of heating, generally realized by a PTC. At present, the PTC and the compressor are two independent working units, the working states of the PTC and the compressor are unrelated, the PTC can be still started to heat under the normal working state of the compressor, or the compressor can still be started to refrigerate under the normal working state of the PTC, namely the compressor and the PTC work simultaneously, so that the energy waste is caused, and meanwhile, the potential safety hazard exists.
To solve the above problems, a relatively complicated structure is often used to interlock the PTC with the compressor. For example, the chinese utility model patent with the license number CN206012265U discloses an air conditioner control logic circuit system for an electric vehicle, in which the air conditioner control panel realizes the temperature adjustment and control through corresponding wiring, the wiring is more, the control system logic is complex, correspondingly, the manufacturing cost is higher, and the practicability is poorer.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electric automobile temperature regulation apparatus and control system and electric automobile thereof for solve the complicated problem of structure of prior art's realization PTC and compressor interlocking.
For solving the technical problem, the technical scheme and beneficial effect of the utility model are that:
the utility model discloses a control system of an electric automobile temperature adjusting device, which comprises a controller, an interlocking relay, a refrigeration control switch, a heating control switch, a refrigeration control branch and a heating control branch; the interlocking relay comprises a coil part, a normally closed contact and a normally open contact, wherein one contact is connected with the refrigeration control branch, and the other contact is connected with the heating control branch; a coil of a refrigeration control switch is arranged on the refrigeration control branch in series, and a contact of the refrigeration controller switch is used for being arranged on a compressor power supply branch in series; a coil of the heating control switch is serially arranged on the heating control branch, and a contact of the heating control switch is used for being serially arranged on the PTC power supply branch; the controller comprises an input end and two output ends, wherein the input end is used for receiving a temperature regulation instruction, one output end is connected with a normally closed contact and a normally open contact of the interlocking relay, and the other output end is connected with a coil of the interlocking relay.
The utility model discloses an electric automobile temperature adjusting device, which comprises a power supply device, a compressor, a PTC, a compressor power supply branch, a PTC power supply branch and a control system of the electric automobile temperature adjusting device; the power supply device is connected with the compressor through the compressor power supply branch and is also connected with the PTC through the PTC power supply branch; the control system of the electric automobile temperature adjusting device comprises a controller, an interlocking relay, a refrigeration control switch, a heating control switch, a refrigeration control branch and a heating control branch; the interlocking relay comprises a coil part, a normally closed contact and a normally open contact, wherein one contact is connected with the refrigeration control branch, and the other contact is connected with the heating control branch; a coil of a refrigeration control switch is serially arranged on the refrigeration control branch, and a contact of the refrigeration controller switch is serially arranged on a compressor power supply branch; a coil of the heating control switch is serially arranged on the heating control branch circuit, and a contact of the heating control switch is serially arranged on the PTC power supply branch circuit; the controller comprises an input end and two output ends, wherein the input end is used for receiving a temperature regulation instruction, one output end is connected with a normally closed contact and a normally open contact of the interlocking relay, and the other output end is connected with a coil of the interlocking relay.
The beneficial effects are as follows: the device and the control system thereof can receive the temperature regulation instruction through the controller, and realize the interlocking of the refrigeration and heating functions in the whole vehicle through the interlocking relay according to the received temperature regulation instruction, so that the device can only be in a refrigeration state or only be in a heating state or not work at all, the refrigeration and heating simultaneous work is prevented, the energy waste is prevented, and the safety is improved. Moreover, the device and the control system thereof have simple circuit structure, easy realization and lower cost.
As a further improvement of the device and the control system thereof, the refrigeration control branch is also provided with a pressure switch in series, and the pressure switch is used for being in a normally closed state when the pressure of the air conditioner pipeline is in a normal range. The refrigeration is carried out when the pressure of the air conditioner pipeline is within a normal range, so that the safety of the air conditioner is ensured.
As a further improvement of the device and the control system thereof, a PTC self-recovery fuse is also arranged on the heating control branch in series. The heating is performed when the PTC temperature is normal, thereby preventing the PTC from being damaged and improving the safety.
The utility model discloses an electric automobile, including automobile body and power battery, still include the electric automobile temperature regulation apparatus that the aforesaid introduced, realize the effect the same with the device.
As a further improvement of the electric automobile, the controller is a whole automobile controller.
As a further improvement of the electric automobile, the power supply device is a power battery.
Drawings
Fig. 1 is a circuit diagram of an electric vehicle temperature adjusting device of the present invention;
FIG. 2 is a control logic diagram of the present invention;
the system comprises an air conditioner control panel 1, a vehicle control unit VCU2, an interlocking relay 3, a pressure switch 4, a refrigeration control switch 5, a compressor 6, a heating control switch 7, a PTC8, a power battery 9 and a PTC self-recovery fuse 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
The embodiment of the electric automobile:
the embodiment provides an electric vehicle which comprises a vehicle body, a power battery and an electric vehicle temperature adjusting device. In order to control the temperature adjusting device of the electric vehicle, a control system of the temperature adjusting device of the electric vehicle is further arranged in the electric vehicle, and a circuit diagram of the control system is shown in fig. 1.
The device comprises a vehicle control unit VCU2, an interlocking relay 3, a refrigeration control switch 5, a heating control switch 7, a compressor power supply branch, a PTC power supply branch, a refrigeration control branch, a heating control branch and a power battery 9.
The vehicle control unit VCU2 includes an input terminal capable of acquiring an AC (air conditioner compressor) signal and a PTC (electrical heating) signal from the air conditioner control panel 1 and ensuring that only one of the compressor and the PTC is in an operating state by the interlock relay 3 according to the detected signals. The VCU2 of the vehicle control unit further comprises two output ends, wherein one output end is connected with one end of the coil of the interlocking relay 3, and the other end of the coil of the interlocking relay 3 is grounded; and the other output end is connected with the normally open contact and the normally closed contact of the interlocking relay 3.
The normally closed contact of the interlocking relay 3 is also connected with one end of a refrigeration control branch, and the other end of the refrigeration control branch is grounded. And a coil of a pressure switch 4 and a coil of a refrigeration control switch 5 are also arranged on the refrigeration control branch in series, wherein the pressure switch 4 is used for being in a normally closed state when the pressure of the air conditioner pipeline is in a normal range.
The normally open contact of the interlock relay 3 is also connected with one end of the heating control branch circuit, and the other end of the heating control branch circuit is grounded. And a coil of the PTC self-recovery fuse 10 and a coil of the heating control switch 7 are also serially arranged on the heating control branch, wherein the PTC self-recovery fuse 10 is disconnected when the surface temperature of the PTC is higher.
Two ends of the power battery 9 are connected in parallel with two loops which are respectively a compressor power supply branch and a PTC power supply branch. The compressor power supply branch circuit is provided with normally open contacts of the compressor 6 and the refrigeration control switch 5 in series, and the PTC power supply branch circuit is provided with normally open contacts of the PTC8 and the heating control switch 7 in series.
The working principle of the device will be described in detail with reference to fig. 1 and 2.
After the whole vehicle is electrified, under normal conditions, when a refrigeration switch of the air conditioner control panel 1 is turned on and a heating switch is not turned on, the vehicle control unit VCU2 receives an AC signal, at the moment, the vehicle control unit VCU2 controls to output a high level to a normally closed contact of the interlocking relay 3 and output a low level to a coil end of the interlocking relay 3, a coil of the interlocking relay 3 is not electrified, and a normally open contact and a normally closed contact of the interlocking relay 3 continue to keep the original states; the pressure switch 4 is in the normally closed state when detecting that the air conditioner pipeline pressure is in the normal range, and the coil of refrigeration control switch 5 is electrified, and the normally open contact of refrigeration control switch 5 is closed, and the compressor power supply branch is switched on, and power battery 9 supplies power for the compressor, and the compressor begins work, and the air conditioner begins to refrigerate.
When the heating switch of the air conditioner control panel 1 is turned on and the refrigeration switch is not turned on, the vehicle control unit VCU2 receives the PTC signal, at this time, the vehicle control unit VCU2 controls the coil end and the normally closed contact end of the output high level to the interlocking relay 3, the coil of the interlocking relay 3 is electrified, the normally closed contact of the interlocking relay 3 is disconnected, the normally open contact is closed, the coil of the heating control switch 7 is electrified, the normally open contact of the heating control switch 7 is closed, the PTC power supply branch is switched on, the power battery 9 supplies power to the PTC, the PTC starts to work, and heating is started.
Under the condition that a refrigeration switch of the air conditioner control panel 1 is not disconnected, a heating switch is turned on, a signal detected by a VCU of the vehicle controller is based on a PTC signal, the VCU of the vehicle controller controls and outputs a high level to a coil end and a normally closed contact end of the interlocking relay 3, at the moment, a PTC power supply branch is conducted, the PTC works normally, and heating is started; the power supply branch of the compressor is disconnected, and the compressor does not work.
Under the condition that a heating switch of the air conditioner control panel 1 is not disconnected, a refrigeration switch is turned on, a signal detected by a VCU of the vehicle control unit is based on an AC signal, the VCU of the vehicle control unit controls to output a high level to a normally closed contact end of the interlocking relay 3 and output a low level signal to a coil end of the interlocking relay 3, at the moment, a power supply branch of a compressor is conducted, the compressor normally works, and the air conditioner starts to refrigerate; the PTC power supply branch is disconnected and the PTC is not in operation.
When the vehicle control unit VCU receives and detects the AC signal and the PTC signal at the same time, the vehicle control unit VCU judges that the PTC is higher priority, the vehicle control unit VCU controls to output high level to the coil end and the normally closed contact end of the vehicle control unit VCU, the vehicle control unit VCU controls to output high level to the interlocking relay 3, at the moment, the PTC power supply branch circuit is conducted, the PTC works normally, and heating is started; the power supply branch of the compressor is disconnected, and the compressor does not work. It should be noted that, the specific priority setting level here may be manually defined, and certainly, the vehicle control unit VCU may also be set according to a requirement to determine that the AC signal is a higher priority.
Electric automobile temperature regulation apparatus embodiment:
this embodiment provides an electric vehicle temperature adjusting apparatus, and the system can be applied to an existing electric vehicle to achieve the interlocking of the compressor and the PTC. The device has been described in detail in the above-mentioned embodiment of the electric vehicle, and is not described herein again.
The control system embodiment of the electric automobile temperature adjusting device comprises:
this embodiment provides a control system of electric automobile temperature regulation device, and this system does not have power supply unit, compressor, PTC, compressor power supply branch road, PTC power supply branch road in comparing in electric automobile temperature regulation device for realize the regulation and control to electric automobile temperature regulation device. The control system has been described in detail in the embodiment of the electric vehicle, and will not be described herein.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (9)
1. A control system of an electric automobile temperature adjusting device is characterized by comprising a controller, an interlocking relay, a refrigeration control switch, a heating control switch, a refrigeration control branch and a heating control branch;
the interlocking relay comprises a coil part, a normally closed contact and a normally open contact, wherein one contact is connected with the refrigeration control branch, and the other contact is connected with the heating control branch;
a coil of a refrigeration control switch is arranged on the refrigeration control branch in series, and a contact of the refrigeration controller switch is used for being arranged on a compressor power supply branch in series; a coil of the heating control switch is serially arranged on the heating control branch, and a contact of the heating control switch is used for being serially arranged on the PTC power supply branch;
the controller comprises an input end and two output ends, wherein the input end is used for receiving a temperature regulation instruction, one output end is connected with a normally closed contact and a normally open contact of the interlocking relay, and the other output end is connected with a coil of the interlocking relay.
2. The control system of the electric automobile temperature adjusting device according to claim 1, characterized in that a pressure switch is further connected in series to the refrigeration control branch, and the pressure switch is used for being in a normally closed state when the air conditioner pipeline pressure is in a normal range.
3. The control system of the electric vehicle temperature regulation device according to claim 1 or 2, wherein a PTC self-recovery fuse is further connected in series to the heating control branch.
4. The temperature adjusting device of the electric automobile is characterized by comprising a power supply device, a compressor, a PTC, a compressor power supply branch, a PTC power supply branch and a control system of the temperature adjusting device of the electric automobile;
the power supply device is connected with the compressor through the compressor power supply branch and is also connected with the PTC through the PTC power supply branch;
the control system of the electric automobile temperature adjusting device comprises a controller, an interlocking relay, a refrigeration control switch, a heating control switch, a refrigeration control branch and a heating control branch;
the interlocking relay comprises a coil part, a normally closed contact and a normally open contact, wherein one contact is connected with the refrigeration control branch, and the other contact is connected with the heating control branch;
a coil of a refrigeration control switch is serially arranged on the refrigeration control branch, and a contact of the refrigeration controller switch is serially arranged on a compressor power supply branch; a coil of the heating control switch is serially arranged on the heating control branch circuit, and a contact of the heating control switch is serially arranged on the PTC power supply branch circuit;
the controller comprises an input end and two output ends, wherein the input end is used for receiving a temperature regulation instruction, one output end is connected with a normally closed contact and a normally open contact of the interlocking relay, and the other output end is connected with a coil of the interlocking relay.
5. The electric automobile temperature regulating device of claim 4, wherein a pressure switch is further connected in series with the refrigeration control branch, and the pressure switch is used for being in a normally closed state when the air conditioner pipeline pressure is in a normal range.
6. The temperature adjusting apparatus for electric vehicle as claimed in claim 4 or 5, wherein a PTC self-recovery fuse is further connected in series to the heating control branch.
7. An electric vehicle, comprising a vehicle body and a power battery, and further comprising the electric vehicle temperature regulating device according to any one of claims 4 to 6.
8. The electric vehicle of claim 7, wherein the controller is a vehicle control unit.
9. The electric vehicle of claim 7, wherein the power supply device is a power battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921077251.4U CN211000829U (en) | 2019-07-10 | 2019-07-10 | Electric automobile temperature adjusting device and control system thereof and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921077251.4U CN211000829U (en) | 2019-07-10 | 2019-07-10 | Electric automobile temperature adjusting device and control system thereof and electric automobile |
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| Publication Number | Publication Date |
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| CN211000829U true CN211000829U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921077251.4U Active CN211000829U (en) | 2019-07-10 | 2019-07-10 | Electric automobile temperature adjusting device and control system thereof and electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208287A (en) * | 2019-07-10 | 2021-01-12 | 河南森源电动汽车有限公司 | Electric automobile temperature adjusting device and control system thereof and electric automobile |
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2019
- 2019-07-10 CN CN201921077251.4U patent/CN211000829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112208287A (en) * | 2019-07-10 | 2021-01-12 | 河南森源电动汽车有限公司 | Electric automobile temperature adjusting device and control system thereof and electric automobile |
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