CN214221324U - Wire harness overload protection system and vehicle - Google Patents
Wire harness overload protection system and vehicle Download PDFInfo
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- CN214221324U CN214221324U CN202023342592.5U CN202023342592U CN214221324U CN 214221324 U CN214221324 U CN 214221324U CN 202023342592 U CN202023342592 U CN 202023342592U CN 214221324 U CN214221324 U CN 214221324U
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Abstract
The present disclosure relates to the field of automobiles, and in particular, to a wire harness overload protection system and a vehicle, the system comprising: the electronic fan control system comprises an Electronic Control Unit (ECU) and an electronic fan control circuit connected with the ECU; the electronic fan control circuit comprises an electronic fan, an electronic fan temperature sensor connected with the electronic fan and an on-off protection device connected with the electronic fan temperature sensor; the electronic fan temperature sensor is used for detecting the temperature of a wiring harness in the electronic fan control circuit in real time and sending the temperature of the wiring harness to the ECU; and the ECU is used for controlling the on-off protection device to be switched off under the condition that the temperature of the wire harness is greater than or equal to a first preset temperature threshold value, so that the electronic fan stops working.
Description
Technical Field
The disclosure relates to the field of automobiles, in particular to a wire harness overload protection system and a vehicle.
Background
With the development of science and technology in the field of automobiles, automobiles become one of the most common traffic ways in modern society, and in order to guarantee the driving safety of the automobiles, automobile manufacturers add protection circuits so as to improve the safety of the automobiles; in order to avoid potential safety hazards caused by insufficient heat dissipation of an engine, an electronic fan is added to control the water temperature of the engine to be not too high, however, when the electronic fan generates faults such as clamping stagnation and/or rotation blockage, current can be increased, so that the whole vehicle line is ablated, and further potential safety hazards that the whole vehicle is on fire can be caused.
In the prior art, a resistor is usually adopted to control the rotating speed of an electronic fan, the current of a branch where the electronic fan is located is controlled by the resistor to control whether the electronic fan is in a high rotating speed or a low rotating speed, and the electronic fan does not have the function of a protection circuit, so that the electronic fan control circuit can be protected only by a fuse wire carried by a vehicle; and because the fuse fusing is disposable, and still need dismantle the part and change the fuse after the fusing, caused the waste of resource, also brought the inconvenience for the user, reduced user's driving experience.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides a wire harness overload protection system and a vehicle.
In a first aspect, a system for protecting a wire harness from overload is provided, the system comprising: the electronic fan control system comprises an Electronic Control Unit (ECU) and an electronic fan control circuit connected with the ECU; the electronic fan control circuit comprises an electronic fan, an electronic fan temperature sensor connected with the electronic fan and an on-off protection device connected with the electronic fan temperature sensor; the electronic fan temperature sensor is used for detecting the temperature of a wiring harness in the electronic fan control circuit in real time and sending the temperature of the wiring harness to the ECU; and the ECU is used for controlling the on-off protection device to be switched off under the condition that the temperature of the wire harness is greater than or equal to a first preset temperature threshold value, so that the electronic fan stops working.
Optionally, the on-off protection device comprises a solenoid valve or a normally closed relay.
Optionally, the ECU is further configured to control the on-off protection device to be closed to enable the electronic fan to operate if the temperature of the wiring harness is less than or equal to a second preset temperature threshold after controlling the on-off protection device to be disconnected, where the second preset temperature threshold is less than the first preset temperature threshold.
Optionally, the system further comprises: the alarm device is connected with the ECU; and the ECU is also used for controlling the alarm device to give an alarm when the temperature of the wire harness is greater than or equal to the first preset temperature threshold value.
Optionally, the system further comprises an engine water temperature sensor connected to the ECU; the engine water temperature sensor is used for detecting the outlet water temperature of the engine in real time and sending the outlet water temperature of the engine to the ECU; and the ECU is used for limiting the output torque of the engine to a target torque under the condition that the outlet water temperature of the engine is greater than or equal to a third preset temperature threshold value.
Optionally, the ECU is configured to, when the engine leaving water temperature is greater than or equal to the third preset temperature threshold, obtain a target torque control strategy corresponding to the engine leaving water temperature at the current time from preset torque control strategies, and limit the output torque of the engine according to the target torque control strategy.
Optionally, the electronic fan control circuit further comprises a low speed fan relay and a high speed fan relay; after the low-speed fan relay and the high-speed fan relay are connected in parallel, one end of the low-speed fan relay is connected with the engine water temperature sensor, and the other end of the low-speed fan relay is connected with the electronic fan; the ECU is used for controlling the low-speed fan relay to be switched off and the high-speed fan relay to be switched on when the outlet water temperature of the engine is determined to be greater than or equal to a fourth preset temperature threshold value; and when the outlet water temperature of the engine is determined to be smaller than the fourth preset temperature threshold value, controlling the low-speed fan relay to be closed, and disconnecting the high-speed fan relay.
In a second aspect, a vehicle is provided that includes the wire harness overload protection system of the first aspect of the present disclosure.
Through the technical scheme, the temperature of the wire harness in the electronic fan control circuit is detected in real time through the electronic fan temperature sensor in the electronic fan control circuit, the temperature of the wire harness is sent to the ECU, the ECU controls the on-off protection device to be disconnected under the condition that the temperature of the wire harness is greater than or equal to a first preset temperature threshold value so as to stop the electronic fan, thus, when the temperature of the wire harness reaches the first preset temperature threshold value, the on-off protection device is controlled to be disconnected to protect the electronic fan control circuit after the current rises due to the fault phenomena of jamming and/or stalling of the electronic fan, and the temperature of the wire harness rises, thereby avoiding the safety hazards of the whole vehicle such as the ablation of the wire harness and even the ignition of the wire harness when the fuse is not fused, the driving safety of the user is guaranteed, and the driving experience of the user is improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a block diagram illustrating a first wire harness overload protection system in accordance with an exemplary implementation;
fig. 2 is a block diagram illustrating a second wire harness overload protection system in accordance with an exemplary implementation;
fig. 3 is a schematic circuit connection diagram of a wire harness overload protection system, which is illustrated by taking the on-off protection device as an electromagnetic valve as an example;
FIG. 4 is a block diagram of a vehicle shown in accordance with an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Before the description of the present disclosure, an application scenario of the present disclosure will be described. In order to avoid potential safety hazards caused by insufficient heat dissipation of an engine, an electronic fan is added to control the water temperature of the engine to be not too high, however, when the electronic fan generates faults such as clamping stagnation and/or rotation blockage, current is increased, so that the whole vehicle line is ablated, and further potential safety hazards of the whole vehicle on fire are possibly caused; in the prior art, a resistor is usually adopted to control the rotating speed of an electronic fan, the current of a branch where the electronic fan is located is controlled by the resistor to control whether the electronic fan is in a high rotating speed or a low rotating speed, and the electronic fan does not have the function of a protection circuit, so that the electronic fan control circuit can be protected only by a fuse wire carried by a vehicle; the fuse is fused at one time, and parts are required to be detached after the fuse is fused to replace the fuse, so that resource waste is caused, inconvenience is brought to users, and driving experience of the users is reduced; in addition, in the prior art, the user can only know the current faults of the electronic fan through the peculiar smell generated by fuse fusing, circuit ablation or circuit fire, namely, the user cannot timely know the current faults of the electronic fan, and the probability of potential safety hazards is increased.
In order to solve the above-mentioned problem, the present disclosure provides a wire harness overload protection system, including: an electronic control unit ECU, an electronic fan control circuit connected with the ECU; the electronic fan control circuit comprises an electronic fan, an electronic fan temperature sensor connected with the electronic fan and an on-off protection device connected with the electronic fan temperature sensor; the electronic fan temperature sensor is used for detecting the temperature of a wire harness in the electronic fan control circuit in real time and sending the temperature of the wire harness to the ECU; this ECU for under the condition that this pencil temperature is greater than or equal to first preset temperature threshold value, this break-make protection device disconnection of control to make this electronic fan stop work, like this, at fault phenomena such as electronic fan-out current clamping stagnation and/or stalling lead to the electric current rising, and then lead to the pencil temperature to rise the back, through control when this pencil temperature reachs first preset temperature threshold value break-make protection device disconnection protects electronic fan control circuit, has avoided under the condition that the electronic fan is in the low rotational speed, and the fusing speed of fuse is slower, and there is the whole car circuit that the fuse caused because the high temperature burns when the fuse does not fuse and pencil safety hidden danger such as firing even, has ensured user's driving safety, has improved user's driving experience.
In addition, under the condition that the temperature of a wire harness in the electronic fan control circuit is greater than or equal to the first preset temperature threshold value, the alarm device can be controlled by the ECU to give an alarm to inform a user that the electronic fan fails, so that the user can timely stop and overhaul the electronic fan, the probability of potential safety hazards such as circuit ablation, even circuit fire and the like is reduced, and the driving safety of the user is guaranteed; furthermore, the scheme can solve the problem that the temperature of the wire harness in the electronic fan control circuit is smaller than or equal to the second preset temperature threshold value, the on-off protection device is controlled to be closed, so that the electronic fan works, the electronic fan control circuit is recovered without disassembling a fuse of which the part is replaced, resources are saved, convenience is provided for a user to recover the electronic fan control circuit, and the driving experience of the user is improved.
The present disclosure is described in detail below with reference to specific examples.
Fig. 1 is a block diagram illustrating a first wire harness overload protection system according to an exemplary embodiment, where the system 10, as shown in fig. 1, includes: an ECU (Electronic Control Unit) 101, an Electronic fan Control circuit 102 connected to the ECU 101; the electronic fan control circuit 102 includes an electronic fan 1021, an electronic fan temperature sensor 1022 connected to the electronic fan 1021, and an on-off protection device 1023 connected to the electronic fan temperature sensor 1022; the electronic fan temperature sensor 1022 is configured to detect the temperature of the wire harness in the electronic fan control circuit 102 in real time and send the temperature of the wire harness to the ECU 101; the ECU101 is configured to control the on-off protection device 1023 to be turned off to stop the operation of the electronic fan 1021 when the temperature of the wire harness is greater than or equal to a first preset temperature threshold.
In consideration of the safety hazard if the temperature of the wire harness in the electronic fan control circuit 102 is too high, if the temperature of the wire harness is greater than or equal to the first preset temperature threshold, the on-off protection device 1023 is controlled to be turned off to stop the operation of the electronic fan 1021, so as to protect the electronic fan control circuit 102.
Wherein, the on-off protection device 1023 comprises an electromagnetic valve or a normally closed relay; when the on-off protection device 1023 is an electromagnetic valve, when the electronic fan 1021 has a fault and the current is increased, the temperature of the wiring harness is increased, when the temperature of the wiring harness reaches a first preset temperature threshold value, the ECU101 controls the electromagnetic valve to be powered off, when the electromagnetic valve is powered off, the electromagnetic force disappears, the spring presses the closing member on the valve seat, the valve is closed, and the electronic fan control circuit 102 is disconnected; when the electronic fan 1021 resumes operation, the ECU101 controls the solenoid valve to energize, when the solenoid valve is energized, the electromagnetic coil in the solenoid valve generates electromagnetic force to lift the closing member from the valve seat, the valve opens, thereby the electronic fan control circuit 102 resumes normal, closed-loop control can be performed by the solenoid valve, the closed-loop control refers to a control relationship in which the output as controlled returns to the input as control in a certain manner and exerts control influence on the input, and overload protection of the wiring harness can be achieved by controlling the solenoid valve to de-energize after a first preset temperature threshold is reached; when the on-off protection device 1023 is a normally closed relay, the normally closed relay is in a closed state in a normal state, and when the electronic fan 1021 has a fault and the current is increased, the normally closed relay is turned off, so that the electronic fan control circuit 102 is turned off.
It should be noted that the first predetermined temperature threshold is generally less than the maximum withstand temperature of the wiring harness, so that the electronic fan control circuit 102 can be better protected.
Optionally, the ECU101 is further configured to control the on-off protection device 1023 to close to operate the electronic fan 1021 after controlling the on-off protection device 1023 to be turned off, when the temperature of the wire harness is less than or equal to a second preset temperature threshold, where the second preset temperature threshold is less than the first preset temperature threshold.
After the on-off protection device 1023 is disconnected, the current of the electronic fan control circuit 102 where the on-off protection device 1023 is located is reduced, the temperature of a wire harness in the electronic fan control circuit 102 is measured by the electronic fan temperature sensor 1022 to be reduced, at the moment, a user can overhaul the electronic fan 1021, when the temperature of the wire harness is smaller than or equal to a second preset temperature threshold value, the ECU101 controls the on-off protection device 1023 to be closed again, the electronic fan control circuit 102 is electrified, the electronic fan 1021 restores to normal work, and in addition, if the user does not overhaul the electronic fan 1021 in time, the temperature of the wire harness can be larger than or equal to the first preset temperature threshold value again due to faults after the electronic fan 1021 restores to normal work, and then the on-off protection device 1023 is disconnected, so that the electronic fan 1021 stops working, and the driving safety of a vehicle is guaranteed.
Optionally, fig. 2 is a block diagram illustrating a second wire harness overload protection system according to an exemplary implementation, and as shown in fig. 2, the system 10 further includes: a warning device 103 connected to the ECU 101; the ECU101 is further configured to control the warning device 103 to give a warning if the temperature of the wire harness is greater than or equal to the first preset temperature threshold.
The alarm device 103 may be an electronic fan overheat protection indicator lamp or a buzzer in a vehicle dashboard, so that the user may be informed of a fault of the electronic fan 1021 and/or be warned by sounding through the buzzer by means of warning through flashing of the electronic fan overheat protection indicator lamp in the vehicle dashboard, which is not limited in the present disclosure.
Optionally, as shown in fig. 2, the system further includes an engine water temperature sensor 104 connected to the ECU 101; the engine water temperature sensor 104 is used for detecting the engine outlet water temperature in real time and sending the engine outlet water temperature to the ECU 101; the ECU101 is configured to limit the output torque of the engine to the target torque when the engine leaving water temperature is greater than or equal to a third preset temperature threshold.
In consideration of the reduction of the intake air amount of the radiator connected with the engine after the electronic fan stops working, in order to prevent the engine outlet water temperature from being too high and affecting the service life of the engine, in one possible implementation manner of the present disclosure, the ECU101 may limit the output torque of the engine to a target torque in a case that the engine outlet water temperature is greater than or equal to a third preset temperature threshold, wherein the target torque may be a preset torque, and the target torque is generally smaller than the output torque of the vehicle before the torque limitation. In addition, in another possible implementation manner of the disclosure, when the output torque is limited due to the overhigh engine water outlet temperature, in order to improve the rationality of torque limitation and ensure the power output of the whole vehicle, different torque control strategies can be adopted for torque limitation according to different engine water outlet temperatures.
Therefore, the ECU101 may be further configured to, when the engine leaving water temperature is greater than or equal to the third preset temperature threshold, obtain a target torque control strategy corresponding to the engine leaving water temperature at the current time from the preset torque control strategies, and limit the output torque of the engine according to the target torque control strategy.
In the preset torque control strategy, different engine outlet water temperatures correspond to different target torque strategies, that is, different engine outlet water temperatures, and the limit degrees of the output torque of the engine are different.
For example, assuming that the third preset temperature threshold is 108 ℃, when the engine leaving water temperature is greater than or equal to 108 ℃, the ECU101 starts to obtain a target torque control strategy corresponding to the engine leaving water temperature at the current moment from preset torque control strategies, where the target torque control strategy corresponding to the engine leaving water temperature may be a torque limit of 95%; when the outlet water temperature of the engine reaches 112 ℃, the corresponding target torque control strategy can be torque limit 70%; when the outlet water temperature of the engine reaches 114 ℃, the corresponding target torque control strategy can be forced idling, and at the moment, the engine runs under the neutral condition; when the outlet water temperature of the engine reaches 115 ℃, the corresponding target torque control strategy can be that a water temperature alarm lamp in an instrument panel flickers to inform a user that the water temperature of the engine is too high; when the engine outlet water temperature reaches 117 ℃, the corresponding target torque control strategy may be forced shutdown, and the above example is only an illustration, and the disclosure does not limit this.
Optionally, as shown in fig. 2, electronic fan control circuit 102 also includes a low-speed fan relay 1024 and a high-speed fan relay 1025; the low-speed fan relay 1024 is connected with the high-speed fan relay 1025 in parallel, and then one end of the low-speed fan relay is connected with the engine water temperature sensor 104, and the other end of the low-speed fan relay is connected with the electronic fan 1021; the ECU101 is configured to control the low-speed fan relay 1024 to be turned off and the high-speed fan relay 1025 to be turned on when it is determined that the engine outlet water temperature is greater than or equal to a fourth preset temperature threshold; and when the engine water outlet temperature is determined to be lower than the fourth preset temperature threshold value, controlling the low-speed fan relay 1024 to be closed, and opening the high-speed fan relay 1025.
In case that the electronic fan 1021 stops working, the air intake of the radiator will be reduced, because the engine is connected with the radiator, so in order to prevent the service life of the engine from being affected by the high temperature of the engine water, the output torque of the engine is limited to the target torque by the ECU101 to protect the generator; specifically, the low-speed fan relay 1024 and the high-speed fan relay 1025 are automatically switched according to the engine outlet water temperature.
For example, the fourth preset temperature threshold may be 94 ℃, when the engine outlet water temperature is detected to be 92 ℃, the ECU101 controls the low-speed fan relay 1024 to be closed, and the high-speed fan relay 1025 to be opened; when the engine outlet water temperature is detected to be 98 ℃, the ECU101 controls the low-speed fan relay 1024 to be opened and the high-speed fan relay 1025 to be closed, and it should be noted that if the engine outlet water temperature is determined to be greater than or equal to a third preset temperature threshold value, a control strategy for limiting the output torque of the engine to a target torque is executed.
The low-speed fan relay 1024 and the high-speed fan relay 1025 belong to normally open relays, the normally open relays are in an open state in a normal state, and when the outlet water temperature of the engine is detected to be greater than or equal to a fourth preset temperature threshold value, the high-speed fan relay 1025 is controlled to be closed; and controlling the low-speed fan relay 1024 to be closed when the engine water outlet temperature is determined to be lower than the fourth preset temperature threshold.
Fig. 3 is a circuit connection diagram of a wire harness overload protection system, which is illustrated by taking the on-off protection device as an electromagnetic valve as an example, and the following will further describe a specific embodiment of the present disclosure with reference to fig. 3, as shown in fig. 3, after detecting the temperature of the wire harness in the electronic fan control circuit 102 by the electronic fan temperature sensor 1022, the temperature of the wire harness is sent to the ECU101, and when the ECU101 determines that the temperature of the wire harness is greater than the first preset temperature threshold, the ECU101 controls the electromagnetic valve to be powered off to stop the operation of the electronic fan 1021, and alarms by flashing an electronic fan overheat protection indicator lamp in a vehicle dashboard and sounding a buzzer, so as to inform a user that the electronic fan 1021 has a fault; continuing with the above example, at this time, if the engine outlet water temperature is increased due to the decrease of the air intake of the radiator caused by the stop of the electronic fan 1021, and it is detected that the engine outlet water temperature is 98 ℃, the ECU101 controls the high-speed fan relay 1025 to close, so as to perform better heat dissipation through the high-speed fan, however, if the engine outlet water temperature is still continuously increased, when it is detected that the engine outlet water temperature is greater than or equal to 108 ℃, the ECU101 starts to obtain the target torque control strategy corresponding to the engine outlet water temperature at the current time from the preset torque control strategy, and the target torque control strategy may be torque limit 95%. This is by way of example only and the disclosure is not limited thereto.
Adopt above-mentioned pencil overload protection system, at fault phenomena such as electronic fan-out current clamping stagnation and/or locked rotor lead to the electric current to rise, and then lead to the pencil temperature to rise the back, through control when this pencil temperature reachs first predetermined temperature threshold break-make protection device disconnection protects electronic fan control circuit, has avoided being in under the condition of low rotational speed when the electronic fan, and the fusing speed of fuse is slower, and there is the whole car circuit that the fuse did not fuse and causes because the high temperature burns or even pencil fires potential safety hazard, has ensured user's driving safety, has improved user's driving and has experienced.
In addition, under the condition that the temperature of a wire harness in the electronic fan control circuit is greater than or equal to the first preset temperature threshold value, the alarm device can be controlled by the ECU to give an alarm to inform a user that the electronic fan fails, so that the user can timely stop and overhaul the electronic fan, the probability of potential safety hazards such as circuit ablation, even circuit fire and the like is reduced, and the driving safety of the user is guaranteed; furthermore, the scheme can solve the problem that the temperature of the wire harness in the electronic fan control circuit is smaller than or equal to the second preset temperature threshold value, the on-off protection device is controlled to be closed, so that the electronic fan works, the electronic fan control circuit is recovered without disassembling a fuse of which the part is replaced, resources are saved, convenience is provided for a user to recover the electronic fan control circuit, and the driving experience of the user is improved.
Fig. 4 is a block diagram illustrating a vehicle according to an exemplary embodiment, and as shown in fig. 4, the present disclosure also provides a vehicle including the above-described wire harness overload protection system.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (8)
1. A wiring harness overload protection system, the system comprising:
the electronic fan control system comprises an Electronic Control Unit (ECU) and an electronic fan control circuit connected with the ECU; the electronic fan control circuit comprises an electronic fan, an electronic fan temperature sensor connected with the electronic fan and an on-off protection device connected with the electronic fan temperature sensor;
the electronic fan temperature sensor is used for detecting the temperature of a wiring harness in the electronic fan control circuit in real time and sending the temperature of the wiring harness to the ECU;
and the ECU is used for controlling the on-off protection device to be switched off under the condition that the temperature of the wire harness is greater than or equal to a first preset temperature threshold value, so that the electronic fan stops working.
2. The system of claim 1, wherein the on-off protection device comprises a solenoid valve or a normally closed relay.
3. The system of claim 1, wherein the ECU is further configured to control the on-off protection device to close to operate the electronic fan if the temperature of the wiring harness is less than or equal to a second preset temperature threshold after controlling the on-off protection device to be turned off, wherein the second preset temperature threshold is less than the first preset temperature threshold.
4. The system of claim 1, further comprising: the alarm device is connected with the ECU;
and the ECU is also used for controlling the alarm device to give an alarm when the temperature of the wire harness is greater than or equal to the first preset temperature threshold value.
5. The system of any one of claims 1 to 4, further comprising an engine water temperature sensor connected to the ECU;
the engine water temperature sensor is used for detecting the outlet water temperature of the engine in real time and sending the outlet water temperature of the engine to the ECU;
and the ECU is used for limiting the output torque of the engine to a target torque under the condition that the outlet water temperature of the engine is greater than or equal to a third preset temperature threshold value.
6. The system of claim 5, wherein the ECU is configured to obtain a target torque control strategy corresponding to the engine leaving water temperature at the current time from preset torque control strategies and limit the output torque of the engine according to the target torque control strategy, when the engine leaving water temperature is greater than or equal to the third preset temperature threshold.
7. The system of claim 5, wherein the electronic fan control circuit further comprises a low speed fan relay and a high speed fan relay; after the low-speed fan relay and the high-speed fan relay are connected in parallel, one end of the low-speed fan relay is connected with the engine water temperature sensor, and the other end of the low-speed fan relay is connected with the electronic fan;
the ECU is used for controlling the low-speed fan relay to be switched off and the high-speed fan relay to be switched on when the outlet water temperature of the engine is determined to be greater than or equal to a fourth preset temperature threshold value; and when the outlet water temperature of the engine is determined to be smaller than the fourth preset temperature threshold value, controlling the low-speed fan relay to be closed, and disconnecting the high-speed fan relay.
8. A vehicle characterized by comprising the wire harness overload protection system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023342592.5U CN214221324U (en) | 2020-12-31 | 2020-12-31 | Wire harness overload protection system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023342592.5U CN214221324U (en) | 2020-12-31 | 2020-12-31 | Wire harness overload protection system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221324U true CN214221324U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023342592.5U Active CN214221324U (en) | 2020-12-31 | 2020-12-31 | Wire harness overload protection system and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN214221324U (en) |
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2020
- 2020-12-31 CN CN202023342592.5U patent/CN214221324U/en active Active
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