CN217335063U - Vehicle-mounted leakage protector and vehicle - Google Patents
Vehicle-mounted leakage protector and vehicle Download PDFInfo
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- CN217335063U CN217335063U CN202220275529.4U CN202220275529U CN217335063U CN 217335063 U CN217335063 U CN 217335063U CN 202220275529 U CN202220275529 U CN 202220275529U CN 217335063 U CN217335063 U CN 217335063U
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model provides an on-vehicle earth-leakage protector and vehicle relates to vehicle technical field, and on-vehicle earth-leakage protector wherein includes: and the voltage protection driving device is used for collecting voltage signals of the vehicle power supply line and switching on the vehicle power supply line based on the analysis and comparison result of the protection voltage threshold and the voltage signals. The utility model discloses an on-vehicle earth-leakage protector, vehicle can realize the automatic protection to on-vehicle power supply, can satisfy vehicle user demand, drive the custom, has reduced and has driven the operating procedure, can guarantee vehicle safe and reliable.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to an on-vehicle earth-leakage protector and vehicle.
Background
The existing low-voltage battery leakage protector for the vehicle is usually designed as an after-loading mode, namely, various vehicles do not have the function configuration when leaving the factory, and the protector is purchased and installed by a customer, so that the control circuit using a remote control key mode is adopted for the convenience of modification of the customer, the key is easy to forget, damage and power failure, one more operation is needed before ignition and after flameout, and the use is complicated; moreover, the preset protection voltage of the existing leakage protector can not be changed, and can not be matched with the normal operation and use habit, so that the existing leakage protector is not beneficial to directly carrying out system function integration on regular vehicle products such as commercial vehicles and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve a technical problem to provide an on-vehicle earth-leakage protector and vehicle.
According to the utility model discloses an aspect provides an on-vehicle earth-leakage protector, include: and the voltage protection driving device is used for collecting voltage signals of the vehicle power supply line and switching on the vehicle power supply line based on the analysis and comparison result of the protection voltage threshold and the voltage signals.
Optionally, the voltage protection driving apparatus includes: the device comprises a voltage sampling module, a voltage protection module, a driving module and a power supply protection module; the voltage sampling module is used for being connected with the vehicle power supply line through a voltage sampling line and used for collecting a voltage signal of the vehicle power supply line; the voltage protection module is used for sending a control signal to the driving module based on the analysis and comparison result of the protection voltage threshold and the voltage signal; the driving module is connected with the power supply protection module and used for sending corresponding driving signals to the power supply protection module based on the control signals and controlling the power supply protection module to be connected with the vehicle power supply circuit.
Optionally, the leakage protector is provided with an operating power supply through the voltage sampling circuit.
Optionally, the power supply protection module includes: a contactor; a contact of the contactor is arranged in the vehicle power supply line; the driving module is connected with a coil of the contactor, and the coil of the contactor is controlled to be electrified by sending the control signal, so that a contact of the contactor is closed, and the vehicle power supply circuit is connected.
Optionally, the voltage protection module is configured to determine a voltage value corresponding to the voltage signal, and send a control signal to the driving module when the voltage value is higher than or equal to the protection voltage threshold, so that the driving module sends the driving signal; and when the voltage value is smaller than the protection voltage threshold value, stopping sending a control signal to the driving module so that the driving module stops sending the driving signal.
Optionally, a leakage protection start-stop switch; and the earth leakage protection start-stop switch is arranged in a connecting circuit of the driving module and the coil of the contactor.
Optionally, a first anti-channeling device is disposed in a connection line of the driving module and a coil of the contactor.
Optionally, at least one signal line is arranged in the earth leakage protector; the first end of the signal line is connected with a corresponding vehicle-mounted signal, and the other end of the signal line is connected with the coil of the contactor through the earth leakage protection start-stop switch.
Optionally, the vehicle-mounted signal comprises: ACC signals of an ignition lock switch, ON signals of the whole vehicle and standby reservation signals.
Optionally, in a state that the earth leakage protection start-stop switch is closed, when the driving module sends the driving signal or the vehicle-mounted signal is input, a contact of the contactor is closed to connect the vehicle power supply line; and under the state that the leakage protection start-stop switch is disconnected, the contact of the contactor is disconnected so as to disconnect the vehicle power supply line.
Optionally, a second anti-channeling device is disposed in a connection line of the other end of the signal line and the coil of the contactor.
Optionally, the power supply for supplying power to the vehicle power supply line includes: a battery; and a power supply main switch is arranged in the vehicle power supply line.
Optionally, the connection point of the voltage sampling module and a vehicle power supply line is located between the power supply main switch and the power supply protection module.
Optionally, the protection voltage threshold is set by a threshold adjusting device, or the protection voltage threshold is preset in a memory.
According to a second aspect of the present invention, there is provided a vehicle, comprising: the vehicle-mounted earth leakage protector is described above.
The utility model discloses a voltage signal of vehicle power supply line is gathered to on-vehicle earth-leakage protector and vehicle, sends control signal to drive module based on the analysis comparison result of protection voltage threshold value and voltage signal, and drive module sends corresponding drive signal to power supply protection module based on control signal, controls power supply protection module switch-on vehicle power supply line; the automatic protection to the vehicle-mounted power supply can be realized, the use requirements and the driving habits of the vehicle can be met, the driving operation steps are reduced, and the safety and the reliability of the vehicle can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive laboriousness.
Fig. 1A is a schematic block diagram of an embodiment of a vehicle-mounted earth leakage protector according to the present invention;
fig. 1B is a schematic block diagram of another embodiment of an on-board earth leakage protector according to the present invention;
fig. 2 is a schematic block diagram of a vehicle-mounted earth leakage protector according to another embodiment of the present invention.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. The technical solutions in the embodiments of the present invention will be described clearly and completely 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 technical solution of the present invention is described in many ways with reference to the drawings and the embodiments.
The terms "first", "second", and the like are used hereinafter only for descriptive distinction and have no other special meaning.
As shown in fig. 1A, the utility model provides an on-vehicle earth-leakage protector includes: the voltage protection driving device 010 collects voltage signals of the vehicle power supply line, and the vehicle power supply line is connected based on the analysis and comparison result of the protection voltage threshold and the voltage signals.
The utility model discloses can be used to contain but not limited to all kinds of equipment facilities or systems such as vehicle, and use like other controllers or systems the utility model discloses, as some of its system or function and can realize relevant function, all belong to the utility model discloses the protection scope.
As shown in fig. 1B, the voltage protection driving apparatus 010 includes a voltage sampling module 11, a voltage protection module 12, a driving module 13, and a power supply protection module 14. Voltage protection driving device 010 the voltage protection driving device 010 may be a controller, a circuit, or the like, and may implement corresponding functions of modules such as a voltage sampling module 11, a voltage protection module 12, a driving module 13, and a power supply protection module 14, where the modules may be separate modules, or may be a corresponding functional area in the controller or a circuit thereof.
The voltage sampling module 11 is connected with the vehicle power supply line 16 through a voltage sampling line 111, and is used for collecting a voltage signal of the vehicle power supply line 16 and providing a working power supply for the vehicle leakage protector through the voltage sampling line 16. The power supply of the sampling circuit can be directly used as a working power supply, and an independent external power supply can also be used as the working power supply.
The voltage protection module 12 obtains a preset protection voltage threshold, and sends a control signal to the driving module 13 based on an analysis and comparison result of the protection voltage threshold and the voltage signal. The driving module 13 is connected with the power supply protection module 14, and sends a corresponding driving signal to the power supply protection module 14 based on the control signal, so as to control the power supply protection module 14 to connect the vehicle power supply line 16.
The form of the control signal includes but is not limited to various communication signals such as a hard-line analog or digital signal or waveform, a CAN message, light and wireless wave, and other communication forms. The power supply protection module 14 may be a power supply protection relay or contactor or other type of power driven component, may be an external stand-alone component, or may be an internal part of the controller.
The specific value of the protection voltage threshold value and the ranges of the upper threshold value and the lower threshold value CAN be set or adjusted at any time, and the input adjustment mode includes but is not limited to modifying the parameter values in the program or adjusting the input mode through setting elements of a hardware circuit, and includes but is not limited to sliding rheostat, potentiometer, various switch or dial-up function mechanisms or various communication signals such as CAN messages, light and wireless waves or other communication modes, various digital and analog quantity signals such as level voltage or waveform of hard wire signals and the like.
The display of the state after the setting of the protection voltage threshold value is successful or the state of the parameter to which the protection voltage threshold value belongs at present includes, but is not limited to, various display information such as various indicator lamps such as an LED, a nixie tube, LCD liquid crystal icons or characters, various communication message information such as CAN messages, various digital and analog signals such as level voltage or waveform of a hard wire signal.
In one embodiment, the power source 15 for powering the vehicle power supply line 14 includes a battery or the like, which may be a low voltage battery or the like. As shown in fig. 2, a main power supply switch 19 is provided in the vehicle power supply line 16, and a connection point of the voltage sampling module 11 and the vehicle power supply line 16 is located between the main power supply switch 19 and the power supply protection module.
The power supply of the vehicle-mounted leakage protector can be taken from the normal power of a low-voltage storage battery of the whole vehicle. The whole vehicle low-voltage electric device 18 is connected with the power supply main switch 19, the connection point of the voltage sampling module 11 and the vehicle power supply line 16 is positioned at the rear end of the circuit of the power supply main switch 19, and the power supply main switch 19 can realize the on-off of the vehicle power supply line 16.
The ground wire of the vehicle-mounted leakage protector is connected with the ground wire of the whole vehicle, and the voltage sampling circuit 111 can be used as a power wire. For a vehicle model with a 24V vehicle battery, the default protection voltage threshold is 25.4V. The protection voltage threshold is set by the threshold adjusting means, or the protection voltage threshold is set in advance in the memory.
For example, the protection voltage threshold may be adjusted according to actual requirements by a threshold adjusting device, which includes a rotary potentiometer, a dial switch, or a key setting. The protection voltage threshold is set through the threshold adjusting device, or the protection voltage threshold is adjusted through a software means of programming, and the protection voltage threshold can be solidified when the device leaves a factory, so that the function simplification and cost reduction are realized. The utility model discloses an on-vehicle earth-leakage protector can be applicable to on-vehicle battery and be multiple motorcycle types such as 24V, 12V, and the power input of support is wide voltage range.
In one embodiment, the power supply protection module 14 includes a contactor, etc., and various existing contactors may be used. The vehicle power supply line 16 is provided with a contact 141 of a contactor, the driving module 13 is connected with a coil 142 of the contactor, and the driving module 13 controls the coil 142 of the contactor to be electrified by sending a control signal so as to close the contact 141 of the contactor and connect the vehicle power supply line 16. If the drive module 13 does not send a control signal, the coil 142 of the contactor is de-energized to open the contacts 141 of the contactor, disconnecting the vehicle power supply line 16.
The voltage protection module 12 determines a voltage value corresponding to the voltage signal, and when the voltage value is higher than or equal to the protection voltage threshold, the voltage protection module 12 sends a control signal to the driving module 13, so that the driving module 13 sends a driving signal. When the voltage value is smaller than the protection voltage threshold, the voltage protection module 12 stops sending the control signal to the driving module 13, so that the driving module 13 stops sending the driving signal. The driving signal may be a level signal or the like.
For example, the voltage sampling module 11 in the casing 10 of the earth leakage protector starts to operate after obtaining the operating power supply, and samples the voltage of the power supply. The voltage protection module 12 analyzes the sampled voltage value, and analyzes and compares the sampled voltage value with the set protection voltage threshold, and when the sampled voltage value is higher than or equal to the set protection voltage threshold, the driving module 13 outputs a driving signal with the same voltage, and the driving signal is output through an output pin of the leakage protector.
When the sampling voltage value is lower than the protection voltage threshold value, the voltage protection module 12 determines that the battery is in power-down state, controls the driving module 13 to stop outputting the driving signal to the outside, and outputs no driving signal to an output pin of the leakage protector under the condition that no voltage is input to an ACC, ON or other input signal channels.
In one embodiment, a leakage protection start-stop switch 17 is provided in the connection between the drive module 13 and the coil 142 of the contactor. The earth leakage protection start-stop switch 17 may be provided in the cab. The output pin of the earth leakage protector is connected to an earth leakage protection start-stop switch 17 installed in the cab, and the earth leakage protection start-stop switch 17 can be a self-locking switch and other switches to realize the closing and opening operations of the loop of the coil 142 of the contactor. The earth leakage protection start stop switch 17 may function in any input form to permit the contactor coil drive signal to control the contactor or to disable it, including but not limited to the contactor drive function of opening or closing the system with the enable signal previously input to the controller in various signal types.
A first electrical channeling prevention device 21 is provided in a connection line of the driving module 13 and the coil 142 of the contactor, the first electrical channeling prevention device 21 including a diode and the like; the first electrical channeling prevention device 21 may also be another isolation device or an isolation circuit to realize the electrical channeling prevention function. The first tamper-resistant device 21 can also be distinguished by the process sequence from the effective identification of the signals transmitted by the respective channels or by various means.
At least one signal line is arranged in the leakage protector, a first end of the signal line is connected with a corresponding vehicle-mounted signal, and the other end of the signal line is connected with a coil 142 of the contactor through a leakage protection start-stop switch 17; the vehicle-mounted signal comprises an ACC signal of an ignition lock switch, a power-ON ON signal of the whole vehicle and the like, and the vehicle-mounted signal can also comprise other standby reservation signals, including but not limited to a remote control signal input, a charging A + wake-up signal and the like.
And a second anti-channeling device is arranged in a connecting line between the other end of the two signal lines and the coil 142 of the contactor, and the second anti-channeling device comprises a diode and the like and can also be an isolation component such as but not limited to an optical coupler and the like. As shown in fig. 2, the second electrical device 22,23 may be a diode, or may be other isolation devices or isolation circuits to implement an electrical channeling prevention function.
The vehicle-mounted leakage protector has at least two paths of signal inputs, such as an ACC electric signal of a whole vehicle and an ON signal of the whole vehicle, so that the normal power supply function during driving and standby can be realized by utilizing an ignition lock or the normal power-ON operation step of a power supply of the whole vehicle conveniently, and a driver does not need to operate a remote control button independently. A plurality of spare input signal channels may be reserved for subsequent retrofitting and functional expansion. All input signals are connected with diodes in series in an input channel, so that the unidirectional conduction function is realized, and currents with different functions and time sequences are prevented from mutually fleeing.
When the driving module 13 sends a driving signal or there is an input of a vehicle-mounted signal (ACC signal of the ignition lock switch and/or ON signal of the entire vehicle) in a state where the earth leakage protection start-stop switch 17 is closed, the contact 141 of the contactor is closed to connect the vehicle power supply line 16. In the off state of the earth leakage protection start-stop switch 17, the contact 141 of the contactor is opened to disconnect the vehicle power supply line 16. ACC and ON power signals of the whole vehicle are used as conventional suction means and are synchronously realized with ignition actions without special operation of extra steps.
In one embodiment, when the earth leakage protection start-stop switch 17 installed in the cab is closed and the driving module 13 sends a driving signal or inputs an external ACC and ON electric signal, the driving signal is transmitted to the coil 142 of the contactor through the diode, and the coil 142 of the contactor is electrified to attract the contact 141 of the contactor, so as to realize the conduction of the low-voltage circuit of the whole vehicle and supply power to the low-voltage electric appliances of the whole vehicle.
When the earth leakage protection start-stop switch 17 installed in the cab is turned off, the driving module 13 sends a driving signal to the coil 142 of the contactor, the coil 142 of the contactor is not attracted, the contact 141 of the contactor is turned off, the low-voltage power supply loop of the whole vehicle is turned off, the whole vehicle is in a power-off state, and the power consumption of the low-voltage storage battery of the whole vehicle is avoided. When the earth leakage protection start-stop switch 17 installed in the cab is closed, the ACC and the ON electrical signals can keep the coil 142 of the contactor closed continuously in the state that the ACC and the ON electrical signals are stably input into the input pins corresponding to the earth leakage protector, so that the continuous power supply of the whole vehicle is realized.
When the earth leakage protection start-stop switch 17 installed in the cab is closed, under the state that ACC and ON electric signals are not provided, and when the electric quantity of the low-voltage battery of the whole vehicle is sufficient, the voltage protection module 12 obtains a preset protection voltage threshold value, when the voltage signal is greater than or less than the protection voltage threshold value, a control signal is sent to the driving module, the driving module 13 sends a driving signal, the driving signal is output by an output pin of the vehicle-mounted earth leakage protector, the coil 142 of the contactor is attracted, and a low-voltage power supply loop of the whole vehicle is closed. When the voltage value is smaller than the protection voltage threshold value, the control signal is stopped being sent to the driving module 13, the driving module 13 stops outputting the driving signal, the coil 142 of the contactor is powered off, the low-voltage power circuit of the whole vehicle is disconnected, the continuous power consumption of the whole vehicle is avoided, and the power leakage prevention function is realized.
In one embodiment, the present invention provides a vehicle, comprising the vehicle-mounted earth leakage protector as described in any of the above embodiments. The vehicle can be a fuel vehicle, a new energy vehicle, a hybrid vehicle, a passenger vehicle, a commercial vehicle, a battery car, a motor home (motor caravan) and the like, and the vehicle-mounted leakage protector is suitable for various vehicle types needing low-voltage lead-acid or lithium batteries.
The vehicle-mounted leakage protector and the vehicle in the embodiment collect voltage signals of a vehicle power supply line, send control signals to the driving module based on the analysis and comparison result of the protection voltage threshold and the voltage signals, and the driving module sends corresponding driving signals to the power supply protection module based on the control signals to control the power supply protection module to be connected with the vehicle power supply line; the automatic protection to the vehicle-mounted power supply can be realized, the use requirements and the driving habits of the vehicle can be met, the driving operation steps are reduced, and the safety and the reliability of the vehicle can be ensured.
The method and system of the present invention may be implemented in a number of ways. For example, the methods and systems of the present invention may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless specifically stated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as programs recorded in a recording medium, the programs including machine readable instructions for implementing a method according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (15)
1. An on-vehicle earth-leakage protector, characterized by comprising:
and the voltage protection driving device is used for collecting voltage signals of the vehicle power supply line and switching on the vehicle power supply line based on the analysis and comparison result of the protection voltage threshold and the voltage signals.
2. The vehicle-mounted earth-leakage protector of claim 1,
the voltage protection driving device comprises: the device comprises a voltage sampling module, a voltage protection module, a driving module and a power supply protection module;
the voltage sampling module is used for being connected with the vehicle power supply line through a voltage sampling line and used for collecting a voltage signal of the vehicle power supply line;
the voltage protection module is used for sending a control signal to the driving module based on the analysis and comparison result of the protection voltage threshold and the voltage signal;
the driving module is connected with the power supply protection module and used for sending corresponding driving signals to the power supply protection module based on the control signals and controlling the power supply protection module to be connected with the vehicle power supply circuit.
3. The vehicle-mounted earth-leakage protector according to claim 2,
and providing a working power supply for the leakage protector through the voltage sampling circuit.
4. The earth-leakage protector of claim 2, wherein,
the power supply protection module includes: a contactor; a contact of the contactor is arranged in the vehicle power supply line; the driving module is connected with a coil of the contactor, and the coil of the contactor is controlled to be electrified by sending the control signal, so that a contact of the contactor is closed, and the vehicle power supply circuit is connected.
5. The earth-leakage protector of claim 4, wherein,
the voltage protection module is used for determining a voltage value corresponding to the voltage signal, and when the voltage value is higher than or equal to the protection voltage threshold, sending a control signal to the driving module so that the driving module sends the driving signal; and when the voltage value is smaller than the protection voltage threshold value, stopping sending a control signal to the driving module so as to stop sending the driving signal by the driving module.
6. A leakage protector according to claim 4, further comprising:
a leakage protection start-stop switch; and the leakage protection start-stop switch is arranged in a connecting circuit of the driving module and the coil of the contactor.
7. A leakage protector according to claim 4, further comprising:
and arranging a first electric fleeing prevention device in a connecting line of the driving module and a coil of the contactor.
8. The earth-leakage protector of claim 6, wherein,
at least one signal line is arranged in the leakage protector; the first end of the signal line is connected to a corresponding vehicle-mounted signal, and the other end of the signal line is connected with the coil of the contactor through the earth leakage protection start-stop switch.
9. The earth-leakage protector of claim 8, wherein,
the vehicle-mounted signal includes: ACC signals of an ignition lock switch, ON signals of the whole vehicle and standby reservation signals.
10. The earth-leakage protector of claim 8, wherein,
when the driving module sends the driving signal or the vehicle-mounted signal is input in the closed state of the earth leakage protection start-stop switch, the contact of the contactor is closed to connect the vehicle power supply circuit;
and under the state that the earth leakage protection starting and stopping switch is switched off, the contact of the contactor is switched off to disconnect the vehicle power supply line.
11. The earth-leakage protector of claim 8, wherein,
and arranging a second anti-channeling device in a connecting line between the other end of the signal line and the coil of the contactor.
12. The earth-leakage protector of claim 4, wherein,
the power supply for supplying power to the vehicle power supply line includes: a battery; and a power supply main switch is arranged in the vehicle power supply line.
13. The earth-leakage protector of claim 12, wherein,
and the connection point of the voltage sampling module and the vehicle power supply line is positioned between the power supply main switch and the power supply protection module.
14. The earth-leakage protector of claim 1, wherein,
the protection voltage threshold is set by a threshold adjustment means, or the protection voltage threshold is set in advance in a memory.
15. A vehicle, characterized by comprising:
a vehicle mounted earth-leakage protector according to any one of claims 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220275529.4U CN217335063U (en) | 2022-02-10 | 2022-02-10 | Vehicle-mounted leakage protector and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220275529.4U CN217335063U (en) | 2022-02-10 | 2022-02-10 | Vehicle-mounted leakage protector and vehicle |
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| CN217335063U true CN217335063U (en) | 2022-08-30 |
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| CN202220275529.4U Active CN217335063U (en) | 2022-02-10 | 2022-02-10 | Vehicle-mounted leakage protector and vehicle |
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