CN212386323U - Electric automobile power-on device - Google Patents
Electric automobile power-on device Download PDFInfo
- Publication number
- CN212386323U CN212386323U CN202020774251.6U CN202020774251U CN212386323U CN 212386323 U CN212386323 U CN 212386323U CN 202020774251 U CN202020774251 U CN 202020774251U CN 212386323 U CN212386323 U CN 212386323U
- Authority
- CN
- China
- Prior art keywords
- ptc heater
- ptc
- circuit
- distribution box
- controller
- 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.)
- Active
Links
Images
Landscapes
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application discloses device that electric automobile was powered on, the device includes at least: a distribution box, a PTC heater and a fusing circuit; the fusing circuit can be arranged inside the PTC heater, inside the distribution box or between the PTC heater and the distribution box and is arranged on a line between the PTC heater and the output end of the distribution box; when a signal that the PTC heater fails is received, the corresponding power supply device supplies power to the fusing circuit, and the circuit is disconnected. By arranging the fusing circuit on a line between the PTC heater and the output end of the distribution box, when a fault signal of the PTC heater is received, the fusing circuit is powered by a corresponding power supply device, and the circuit is disconnected. Therefore, a line between the PTC heater and the output end of the distribution box is disconnected, and the situation that when the PTC heater is short-circuited and fails on the line, the electric automobile cannot be charged with high voltage, so that the high-voltage pre-charging failure of the electric automobile is caused, and the operation of the electric automobile is influenced is prevented.
Description
Technical Field
The utility model belongs to the technical field of the electric automobile technique and specifically relates to a device of electricity on electric automobile is related to.
Background
With the increasing air pollution degree and the increasing shortage of energy sources, people gradually develop a trip mode from the selection of motor vehicles to the selection of electric vehicles. Compared with the motor vehicle, the electric vehicle adopts a large-capacity and high-voltage power battery, a high-voltage motor and an electric drive control system, and adopts a large number of high-voltage accessory devices, such as: high-voltage PTC and the like have high voltage and current grades, the power voltage is generally 300-400V (direct current), and the current can reach hundreds of amperes instantly. Therefore, the safety of the electric automobile in the whole processes of stopping, running, charging and the like needs to be ensured.
When the electric automobile is powered on, because a large number of capacitive loads exist at the input end of the high-voltage equipment controller, high-voltage electric shock can be generated when the high-voltage main loop is directly connected, and therefore, in order to avoid the high-voltage electric shock during connection, the high-voltage system needs to adopt a pre-charging loop mode to pre-charge the high-voltage equipment.
However, after the electric vehicle is frequently subjected to low-voltage electricity, the high-voltage electricity can be failed to be precharged again when the electric vehicle is subjected to high-voltage electricity, so that the electric vehicle cannot be subjected to high-voltage electricity, the operation of the electric vehicle is influenced, and even high-voltage electricity impact can be generated, thereby bringing safety risk.
SUMMERY OF THE UTILITY MODEL
To the above problem, the application provides a device that electric automobile was gone up for solve the unable problem of operation of electric automobile that leads to because electric automobile high pressure preliminary filling fails.
In a first aspect of the present application, there is provided an apparatus for powering on an electric vehicle, the apparatus comprising: the PTC heater comprises a distribution box, a positive temperature compensation coefficient PTC heater and a fusing circuit;
the fusing circuit is arranged in the PTC heater and is connected in series on a line between the PTC heater and the output end of the distribution box;
the fusing circuit is used for supplying power to the PTC controller and disconnecting the power supply when the PTC controller receives a signal that the PTC heater fails; wherein the PTC controller is located in the PTC heater.
Optionally, the fuse circuit includes: a thermal fuse and a heating element;
the thermal fuse is connected in series on a line between the PTC heater and the output end of the distribution box;
the PTC controller supplies power to the heating component, and the heating component supplies heat required by fusing for the thermal fuse.
Optionally, the PTC controller is further configured to:
when the line between the PTC heater and the output end of the distribution box is not disconnected within a preset time, the PTC controller continuously supplies power to the fusing circuit until the fusing circuit is disconnected.
In a second aspect of the present application, there is provided a further apparatus for powering on an electric vehicle, the apparatus comprising: the system comprises a distribution box, a positive temperature compensation coefficient PTC heater, a fusing circuit, an air conditioner controller and a battery;
the fusing circuit is arranged in the distribution box and is connected in series on a line between the PTC heater and the output end of the distribution box;
the positive electrode of the battery is connected with the first end of the fusing circuit, and the negative electrode of the battery is connected with the second end of the fusing circuit through the air conditioner controller;
the air conditioner controller is connected with the PTC controller inside the PTC heater;
and the fusing circuit is used for supplying power to the battery and disconnecting the battery when the air conditioner controller receives a signal that the PTC heater fails and is sent by the PTC controller.
Optionally, the fuse circuit includes: a thermal fuse and a heating element;
the thermal fuse is connected in series on a line between the output end of the distribution box and the PTC heater;
the battery supplies power to the heating component, and the heating component provides heat required by fusing for the thermal fuse.
Optionally, the PTC controller is further configured to:
when the line between the PTC heater and the output end of the distribution box is not disconnected within a preset time, the PTC controller continuously supplies power to the fusing circuit until the fusing circuit is disconnected.
In a third aspect of the present application, there is provided a further apparatus for powering on an electric vehicle, the apparatus comprising: the system comprises a distribution box, a positive temperature compensation coefficient PTC heater, a fusing circuit, an air conditioner controller and a battery;
the first end of the fusing circuit is connected with the output end of the distribution box, and the second end of the fusing circuit is connected with the PTC heater;
the positive electrode of the battery is connected with the first end of the fusing circuit, and the negative electrode of the battery is connected with the second end of the fusing circuit through the air conditioner controller;
the air conditioner controller is connected with the PTC controller inside the PTC heater;
and the fusing circuit is used for supplying power to the battery and disconnecting the battery when the air conditioner controller receives a signal that the PTC heater fails and is sent by the PTC controller.
Optionally, the fuse circuit includes: a thermal fuse and a heating element;
the thermal fuse is connected in series on a line between the output end of the distribution box and the PTC heater;
the battery supplies power to the heating component, and the heating component provides heat required by fusing for the thermal fuse.
Optionally, the PTC controller is further configured to:
when the line between the PTC heater and the output end of the distribution box is not disconnected within a preset time, the PTC controller continuously supplies power to the fusing circuit until the fusing circuit is disconnected.
Compared with the prior art, the technical scheme of the application has the advantages that:
adopt the device that electric automobile was powered on that this application provided, the device includes at least: a distribution box, a PTC heater and a fusing circuit; the fusing circuit can be arranged inside the PTC heater, inside the distribution box or between the PTC heater and the distribution box and is arranged on a line between the PTC heater and the output end of the distribution box; when a signal that the PTC heater fails is received, the corresponding power supply device supplies power to the fusing circuit, and the circuit is disconnected.
By arranging the fusing circuit on a line between the PTC heater and the output end of the distribution box, when a fault signal of the PTC heater is received, the fusing circuit is powered by a corresponding power supply device, and the circuit is disconnected. Therefore, a line between the PTC heater and the output end of the distribution box is disconnected, and the situation that when the PTC heater is short-circuited and fails on the line, the electric automobile cannot be charged with high voltage, so that the high-voltage pre-charging failure of the electric automobile is caused, and the operation of the electric automobile is influenced is prevented. Meanwhile, the failure circuit, namely the line between the PTC heater and the output end of the distribution box, is disconnected by the low-cost fusing circuit, so that the cost for producing the electric automobile can be reduced while the normal operation of the electric automobile is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of an apparatus for powering on an electric vehicle according to the present application;
FIG. 2 is a schematic diagram of another electric vehicle power-on apparatus provided herein;
FIG. 3 is a schematic diagram of another electric vehicle power-on apparatus provided herein;
FIG. 4 is a schematic diagram of another electric vehicle power-on apparatus provided herein;
fig. 5 is a schematic diagram of another electric vehicle power-on apparatus provided in the present application.
Detailed Description
When the electric automobile is powered on, because a large number of capacitive loads exist at the input end of the high-voltage equipment controller, high-voltage electric shock can be generated when the high-voltage main loop is directly connected, and therefore, in order to avoid the high-voltage electric shock during connection, the high-voltage system needs to adopt a pre-charging loop mode to pre-charge the high-voltage equipment. However, after the electric vehicle is frequently subjected to the low-voltage electricity, the high-voltage electricity fails to be precharged again when the electric vehicle is subjected to the high-voltage electricity, so that the electric vehicle cannot be subjected to the high-voltage electricity, and the operation of the electric vehicle is affected.
The inventors have found that the cause of the above phenomenon is generally due to the occurrence of a short circuit inside the PTC heater. For example, when an Insulated Gate Bipolar Transistor (IGBT) inside the PTC heater is broken down, the PTC heater is turned on at a high voltage, corresponding to a single lead, and continues to generate heat. After the electric automobile is powered down, high voltage is applied again, so that high voltage pre-charging failure of the electric automobile can be caused, and the operation of the electric automobile is influenced. For example, when the PTC heater has other internal high voltage short circuit conditions, the high voltage pre-charging of the electric vehicle fails when the high voltage is applied again after the high voltage is applied to the electric vehicle, so that the electric vehicle cannot apply the high voltage, and the operation of the electric vehicle is affected.
In order to overcome the above problems, as shown in fig. 1, which is a schematic diagram of an electric vehicle power-on device, 2 IGBTs can be connected in series in the high side and the bottom side of the PTC heater respectively, and when one IGBT fails, the other IGBT can disconnect the high voltage on the circuit of the PTC heater, and the operation function of the electric vehicle is not affected. Although the probability of 2 IGBTs failing simultaneously is lower than that of 1 IGBT, if two IGBTs are broken down simultaneously, the electric automobile cannot have high voltage, and the running of the electric automobile is affected.
In order to solve the technical problems, the embodiment of the application provides a device for powering on various electric automobiles, and the device is used for solving the problem that the electric automobiles cannot run due to failure of high-voltage pre-charging of the electric automobiles.
In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The application provides a device that electric automobile electrified includes at least: block terminal, PTC heater and fusing circuit. The fusing circuit may be disposed inside the PTC heater, inside the distribution box, or between the PTC heater and the distribution box. Three embodiments are described below.
The first embodiment is as follows:
referring to fig. 2, the drawing is a schematic diagram of an apparatus for powering on an electric vehicle provided in the present application. In the present embodiment, the fusing circuit is provided inside the PTC heater.
The device comprises: a distribution box 201, a positive temperature compensation coefficient PTC heater 202 and a fusing circuit 203;
the fusing circuit 203 is arranged inside the PTC heater 202, and the fusing circuit 203 is connected in series on a line between the PTC heater 202 and the output end of the distribution box 201;
when the PTC controller 202a in the PTC heater 202 receives a signal that the PTC heater 202 is out of order, power is supplied from the PTC controller 202a, and then the fusing circuit 203 breaks the circuit, thereby disconnecting the line between the distribution box 201 and the PTC heater 202. When the PTC heater is short-circuited and fails on the line, the electric automobile cannot be charged with high voltage, so that the high-voltage pre-charging failure of the electric automobile is avoided, and the operation of the electric automobile is influenced.
It is understood that the PTC controller 202a may provide a lower voltage, for example 12V, to the fuse circuit 203. With the low-voltage power supply, the high-voltage power supply circuit, i.e., the circuit between the distribution box 201 and the PTC heater 202, is blown. When the high-voltage line fails, the high-voltage circuit is replaced through the function of the low-voltage circuit, so that the running of the electric automobile is influenced. Through adopting low-cost fusing circuit disconnection failure circuit, be the circuit between PTC heater and the block terminal output promptly, can reduce the cost of production electric automobile when guaranteeing electric automobile normal operating.
Further, refer to fig. 3, which is a schematic diagram of an apparatus for powering on an electric vehicle according to the present application. The fuse circuit 203 may include a thermal fuse 203a and a heat generating component 203 b;
the thermal fuse 203a is connected in series on a line between the PTC heater 202 and the output end of the distribution box 201;
when the PTC controller 202a receives a signal that the PTC heater 202 fails, the PTC controller 202a supplies power to the heat generating component 203b, and then the thermal fuse 203a is blown to disconnect the line between the distribution box 201 and the PTC heater 202, so as to prevent the electric vehicle from being unable to supply high voltage when the PTC heater is short-circuited and fails on the line, which results in failure of high-voltage pre-charging of the electric vehicle, thereby affecting the operation of the electric vehicle.
It is understood that, when the line between the PTC heater 202 and the output terminal of the distribution box 201 is not disconnected for a preset time, the PTC controller 202a continuously supplies power to the fusing circuit 203 until the fusing circuit is disconnected, so as to disconnect the line between the distribution box 201 and the PTC heater 202. The preset time can be set according to the actual condition of the electric automobile, and different numerical values can be set according to different conditions.
Specifically, when the PTC heater fails in the high-voltage power-on process of the electric vehicle, the heating component is immediately switched on to fuse the high-voltage circuit, namely, a line between the PTC heater and the output end of the distribution box; when the PTC heater fails under the condition of high-voltage electricity of the electric automobile and the electric automobile is powered on for the second time, the PTC heater sends out a high-voltage fault code in the pre-charging process of the electric automobile, and starts the fusing component to fuse the high-voltage circuit before the pre-charging of the electric automobile exceeds the preset time; if the high-voltage fusing is not finished within the second power-on high-voltage pre-charging time, the fusing component continuously generates heat until the high-voltage circuit is fused, so that the electric automobile can be normally powered on after a user tries to apply high voltage for many times. It is understood that when the high-voltage circuit is fused, the current of the high-voltage circuit is checked to confirm that the high-voltage circuit is disconnected, and then the power supply of the heat generating component is cut off.
Example two:
referring to fig. 4, the drawing is a schematic diagram of an apparatus for powering on an electric vehicle provided in the present application. In this embodiment, the fuse circuit is disposed inside the distribution box.
The device comprises: a distribution box 401, a positive temperature compensation coefficient PTC heater 402, a fusing circuit 403, an air conditioner controller 404 and a battery 405;
the fuse circuit 403 is disposed inside the distribution box 401, and the fuse circuit 403 is connected in series to a line between the PTC heater 402 and an output terminal of the distribution box 403;
the positive pole of the battery 405 is connected with the first end of the fusing circuit 403, and the negative pole of the battery 405 is connected with the second end of the fusing circuit 403 through the air conditioner controller 404;
the air conditioner controller 404 is connected with a PTC controller 402a inside the PTC heater 402;
when the PTC controller 402a in the PTC heater 402 receives a signal that the PTC heater 402 is out of order, the PTC controller 402a sends a failure signal to the air conditioner heater 404, and then the fusing circuit 403 is powered by the battery 405, so that the fusing circuit 403 breaks the circuit, thereby disconnecting the line between the distribution box 401 and the PTC heater 402. When the PTC heater is short-circuited and fails on the line, the electric automobile cannot be charged with high voltage, so that the high-voltage pre-charging failure of the electric automobile is avoided, and the operation of the electric automobile is influenced.
It is understood that the battery 405 may provide a lower voltage, such as 12V, to the fuse circuit 403. With the low voltage power supply, the high voltage power supply circuit, i.e., the circuit between the power distribution box 401 and the PTC heater 402, is blown. When the high-voltage line fails, the high-voltage circuit is replaced through the function of the low-voltage circuit, so that the running of the electric automobile is influenced. Through adopting low-cost fusing circuit disconnection failure circuit, be the circuit between PTC heater and the block terminal output promptly, can reduce the cost of production electric automobile when guaranteeing electric automobile normal operating.
Further, the fusing circuit 403 may include a thermal fuse 403a and a heat generating component 403b, as shown in fig. 4.
The thermal fuse 403a is connected in series on a line between the output end of the distribution box 401 and the PTC heater 402;
when the PTC controller 402a receives a signal that the PTC heater 402 has a fault, the signal is sent to the air conditioner controller 404, the battery 405 supplies power to the heat generating component 403b, and then the thermal fuse 403a is blown to disconnect the line between the distribution box 401 and the PTC heater 402, so as to prevent the electric vehicle from being unable to supply high voltage when the PTC heater is short-circuited and fails on the line, which results in failure of high-voltage pre-charging of the electric vehicle, thereby affecting the operation of the electric vehicle.
It will be appreciated that when the line between PTC heater 402 and the output of power distribution box 401 is not disconnected for a predetermined period of time, battery 405 continues to power fuse circuit 403 until fuse circuit 403 is disconnected, thereby disconnecting the line between power distribution box 401 and PTC heater 402. The preset time can be set according to the actual condition of the electric automobile, and different numerical values can be set according to different conditions.
Example three:
referring to fig. 5, the drawing is a schematic diagram of an apparatus for powering on an electric vehicle provided in the present application. In this embodiment, the fuse circuit is disposed intermediate the PTC heater and the distribution box.
The device comprises: a distribution box 501, a positive temperature compensation coefficient PTC heater 502, a fusing circuit 503, an air conditioner controller 504 and a battery 505;
a first end of the fusing circuit 503 is connected with an output end of the distribution box 501, and a second end of the fusing circuit 504 is connected with the PTC heater 502;
the positive pole of the battery 505 is connected with the first end of the fusing circuit 503, and the negative pole of the battery 505 is connected with the second end of the fusing circuit 503 through the air conditioner controller 504;
the air conditioner controller 504 is connected with a PTC controller 502a inside the PTC heater 502;
when the PTC controller 502a in the PTC heater 502 receives a signal that the PTC heater 502 is out of order, the PTC controller 502a sends a failure signal to the air conditioner heater 504, and then the battery 505 supplies power to the fusing circuit 503 so that the fusing circuit 503 breaks the circuit, thereby disconnecting the line between the distribution box 501 and the PTC heater 502. When the PTC heater is short-circuited and fails on the line, the electric automobile cannot be charged with high voltage, so that the high-voltage pre-charging failure of the electric automobile is avoided, and the operation of the electric automobile is influenced.
It is understood that the battery 505 may provide a lower voltage, such as 12V, to the fuse circuit 503. With the low-voltage power supply, the high-voltage power supply circuit, i.e., the circuit between the power distribution box 501 and the PTC heater 502 is blown. When the high-voltage line fails, the high-voltage circuit is replaced through the function of the low-voltage circuit, so that the running of the electric automobile is influenced. Through adopting low-cost fusing circuit disconnection failure circuit, be the circuit between PTC heater and the block terminal output promptly, can reduce the cost of production electric automobile when guaranteeing electric automobile normal operating.
Further, the fusing circuit 503 may include a thermal fuse 503a and a heat generating component 503b, with continued reference to fig. 5.
The thermal fuse 503a is connected in series on a line between the output end of the distribution box 501 and the PTC heater 502;
when the PTC controller 502a receives a signal that the PTC heater 502 has a fault, the signal is sent to the air conditioner controller 504, the battery 505 supplies power to the heat generating component 503b, and then the thermal fuse 503a is fused to disconnect the line between the distribution box 501 and the PTC heater 502, so as to prevent the electric vehicle from being unable to supply high voltage when the PTC heater is short-circuited and fails on the line, which leads to the failure of high-voltage pre-charging of the electric vehicle, thereby affecting the operation of the electric vehicle.
It will be appreciated that when the line between PTC heater 502 and the output of switchbox 501 is not disconnected for a predetermined period of time, battery 505 continues to power fuse circuit 503 until fuse circuit 503 is disconnected to disconnect the line between switchbox 501 and PTC heater 502. The preset time can be set according to the actual condition of the electric automobile, and different numerical values can be set according to different conditions.
To sum up, adopt the device that prevents electric automobile high pressure preliminary filling failure that this application provided, the device includes at least: a distribution box, a PTC heater and a fusing circuit; the fusing circuit can be arranged inside the PTC heater, inside the distribution box or between the PTC heater and the distribution box and is arranged on a line between the PTC heater and the output end of the distribution box; when a signal that the PTC heater fails is received, the corresponding power supply device supplies power to the fusing circuit, and the circuit is disconnected.
By arranging the fusing circuit on a line between the PTC heater and the output end of the distribution box, when a fault signal of the PTC heater is received, the fusing circuit is powered by a corresponding power supply device, and the circuit is disconnected. Therefore, a line between the PTC heater and the output end of the distribution box is disconnected, and the situation that when the PTC heater is short-circuited and fails on the line, the electric automobile cannot be charged with high voltage, so that the high-voltage pre-charging failure of the electric automobile is caused, and the operation of the electric automobile is influenced is prevented. Meanwhile, the failure circuit, namely the line between the PTC heater and the output end of the distribution box, is disconnected by the low-cost fusing circuit, so that the cost for producing the electric automobile can be reduced while the normal operation of the electric automobile is ensured.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. The above-described apparatus embodiments are merely illustrative, and the units and modules described as separate components may or may not be physically separate. In addition, some or all of the units and modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The foregoing is only a detailed description of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An apparatus for powering on an electric vehicle, the apparatus comprising: the PTC heater comprises a distribution box, a positive temperature compensation coefficient PTC heater and a fusing circuit;
the fusing circuit is arranged in the PTC heater and is connected in series on a line between the PTC heater and the output end of the distribution box;
the fusing circuit is used for supplying power to the PTC controller and disconnecting the power supply when the PTC controller receives a signal that the PTC heater fails; wherein the PTC controller is located in the PTC heater.
2. The apparatus of claim 1, wherein the fuse circuit comprises: a thermal fuse and a heating element;
the thermal fuse is connected in series on a line between the PTC heater and the output end of the distribution box;
the PTC controller supplies power to the heating component, and the heating component supplies heat required by fusing for the thermal fuse.
3. The device of claim 1, wherein the PTC controller is further configured to:
when the line between the PTC heater and the output end of the distribution box is not disconnected within a preset time, the PTC controller continuously supplies power to the fusing circuit until the fusing circuit is disconnected.
4. An apparatus for powering on an electric vehicle, the apparatus comprising: the system comprises a distribution box, a positive temperature compensation coefficient PTC heater, a fusing circuit, an air conditioner controller and a battery;
the fusing circuit is arranged in the distribution box and is connected in series on a line between the PTC heater and the output end of the distribution box;
the positive electrode of the battery is connected with the first end of the fusing circuit, and the negative electrode of the battery is connected with the second end of the fusing circuit through the air conditioner controller;
the air conditioner controller is connected with the PTC controller inside the PTC heater;
and the fusing circuit is used for supplying power to the battery and disconnecting the battery when the air conditioner controller receives a signal that the PTC heater fails and is sent by the PTC controller.
5. The apparatus of claim 4, wherein the fuse circuit comprises: a thermal fuse and a heating element;
the thermal fuse is connected in series on a line between the output end of the distribution box and the PTC heater;
the battery supplies power to the heating component, and the heating component provides heat required by fusing for the thermal fuse.
6. The device of claim 4, wherein the PTC controller is further configured to:
when the line between the PTC heater and the output end of the distribution box is not disconnected within a preset time, the PTC controller continuously supplies power to the fusing circuit until the fusing circuit is disconnected.
7. An apparatus for powering on an electric vehicle, the apparatus comprising: the system comprises a distribution box, a positive temperature compensation coefficient PTC heater, a fusing circuit, an air conditioner controller and a battery;
the first end of the fusing circuit is connected with the output end of the distribution box, and the second end of the fusing circuit is connected with the PTC heater;
the positive electrode of the battery is connected with the first end of the fusing circuit, and the negative electrode of the battery is connected with the second end of the fusing circuit through the air conditioner controller;
the air conditioner controller is connected with the PTC controller inside the PTC heater;
and the fusing circuit is used for supplying power to the battery and disconnecting the battery when the air conditioner controller receives a signal that the PTC heater fails and is sent by the PTC controller.
8. The apparatus of claim 7, wherein the fuse circuit comprises: a thermal fuse and a heating element;
the thermal fuse is connected in series on a line between the output end of the distribution box and the PTC heater;
the battery supplies power to the heating component, and the heating component provides heat required by fusing for the thermal fuse.
9. The device of claim 7, wherein the PTC controller is further configured to:
when the line between the PTC heater and the output end of the distribution box is not disconnected within a preset time, the PTC controller continuously supplies power to the fusing circuit until the fusing circuit is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020774251.6U CN212386323U (en) | 2020-05-11 | 2020-05-11 | Electric automobile power-on device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020774251.6U CN212386323U (en) | 2020-05-11 | 2020-05-11 | Electric automobile power-on device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212386323U true CN212386323U (en) | 2021-01-22 |
Family
ID=74250059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020774251.6U Active CN212386323U (en) | 2020-05-11 | 2020-05-11 | Electric automobile power-on device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212386323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059979A (en) * | 2021-03-26 | 2021-07-02 | 奇瑞新能源汽车股份有限公司 | Heating circuit of electric automobile and electric automobile |
-
2020
- 2020-05-11 CN CN202020774251.6U patent/CN212386323U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059979A (en) * | 2021-03-26 | 2021-07-02 | 奇瑞新能源汽车股份有限公司 | Heating circuit of electric automobile and electric automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8513953B2 (en) | Power supply device and method for making decision as to contactor weld of power supply device | |
| EP2777975B1 (en) | Power relay assembly driving apparatus and driving method thereof | |
| CN106564383B (en) | A kind of high pressure electric appliance box, electric automobile power supply system and electric vehicle | |
| KR20170065741A (en) | Method and system of controlling vehicle electric power for jump start | |
| JP2014166033A (en) | Power unit | |
| CN111284366A (en) | Power battery charging heating circuit, control method thereof and electric automobile | |
| CN104590027A (en) | High-voltage switching-off control method and system of automobile and automobile with high-voltage switching-off control system | |
| US20220250503A1 (en) | Topology structure of power battery pack for diesel-electric hybrid locomotive | |
| CN109484186A (en) | Electric car active charging method and device | |
| CN212386323U (en) | Electric automobile power-on device | |
| WO2022166364A1 (en) | Power distribution system, control method for power distribution system, and new energy vehicle | |
| CN112018750A (en) | Vehicle-mounted dual-power supply system | |
| CN204037361U (en) | A kind of pure electric coach collision self-blocking control mechanism | |
| CN111572365A (en) | Hierarchical pre-charging loop control circuit and control method | |
| KR20170127150A (en) | Power Relay Assembly for Electric Vehicle | |
| CN113922447B (en) | Vehicle power supply circuit, equipment and car | |
| CN109910612B (en) | Protection control method and device for high-speed circuit breaker, traction control system and train | |
| CN202294343U (en) | High voltage distributor used for hybrid electric or pure electric vehicle | |
| CN114083986A (en) | Automobile high-voltage controller capable of independently controlling upper power supply and control method thereof | |
| CN113904409A (en) | Vehicle power supply circuit, equipment and car | |
| CN113895380B (en) | Vehicle power supply circuit, equipment and car | |
| CN109484184A (en) | The dynamical system and its control method of electric car, electric car | |
| CN212828208U (en) | Circuit system for autonomous vehicle, autonomous vehicle | |
| CN212667134U (en) | Hierarchical pre-charging loop control circuit | |
| CN218228709U (en) | Power battery control system, battery pack and electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |