CN212514908U - Adhesion detection equipment - Google Patents
Adhesion detection equipment Download PDFInfo
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- CN212514908U CN212514908U CN202021018102.3U CN202021018102U CN212514908U CN 212514908 U CN212514908 U CN 212514908U CN 202021018102 U CN202021018102 U CN 202021018102U CN 212514908 U CN212514908 U CN 212514908U
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Abstract
The utility model discloses an adhesion check out test set. This adhesion detection equipment includes: the device comprises a voltage detection module, a control module, an indication module and a power supply module; the voltage detection module is respectively connected with the power supply module, the control module and the high-voltage connector of the battery to be detected, and the control module is connected with the indication module; the power supply module is used for supplying power to the voltage detection module and the control module; the voltage detection module is used for detecting a voltage signal of the high-voltage connector and transmitting the voltage signal to the control module; the control module is used for controlling the indication module to indicate the adhesion state of the high-voltage relay in the battery to be tested based on the voltage signal. By utilizing the adhesion detection equipment, the accuracy of adhesion detection of the high-voltage relay is improved.
Description
Technical Field
The utility model relates to a detect technical field, especially relate to adhesion check out test set.
Background
The adhesion of electric automobile power battery high voltage relay belongs to very serious high voltage system key fault problem, to electric automobile manufacturing enterprise, all need carry out the inspection of high voltage relay state when carrying out work such as trial-manufacture experiment, product acceptance, trouble vehicle maintenance, confirms whether high voltage relay adheres.
Currently, the inspection of the state of a high voltage relay generally requires reading the state of the relay in a Battery Management System (BMS) mounted on a vehicle by a device such as a computer.
However, there is a probability of errors and malfunctions occurring when the high voltage relay adhesion detection is performed by the BMS. Therefore, how to improve the accuracy of the adhesion detection of the high-voltage relay is a technical problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an adhesion check out test set, the effectual accuracy that has promoted the high-voltage relay adhesion and detect.
An embodiment of the utility model provides an adhesion check out test set, include: the device comprises a voltage detection module, a control module, an indication module and a power supply module;
the voltage detection module is respectively connected with the power supply module, the control module and a high-voltage connector of a battery to be detected, and the control module is connected with the indication module;
the power supply module is used for supplying power to the voltage detection module and the control module;
the voltage detection module is used for detecting a voltage signal of the high-voltage connector and transmitting the voltage signal to the control module;
and the control module is used for controlling the indicating module to indicate the adhesion state of the high-voltage relay in the battery to be tested based on the voltage signal.
Further, the voltage detection module comprises a positive input end, a negative input end and a ground input end;
the positive electrode input end is connected with the positive electrode of the high-voltage connector of the battery to be tested, the negative electrode input end is connected with the negative electrode of the high-voltage connector of the battery to be tested, and the ground input end is connected with the shielding ground of the battery to be tested;
the voltage detection module is used for detecting a voltage signal of the anode of the high-voltage connector and a voltage signal of the cathode of the high-voltage connector and transmitting the detected voltage signals to the control module.
Further, control module for based on the anodal voltage signal of high voltage connector with the voltage signal indication of high voltage connector negative pole the state of adhesion pilot lamp in the indication module, in order to confirm high voltage relay's in the battery that awaits measuring adhesion state, the adhesion state includes not adhesion, anodal adhesion and negative pole adhesion.
Further, the adhesion detection apparatus further includes: and one end of the positive electrode protection resistor is connected with the positive electrode input end, and the other end of the positive electrode protection resistor is connected with the ground input end.
Further, the adhesion detection apparatus further includes: and one end of the negative electrode protection resistor is connected with the negative electrode input end, and the other end of the negative electrode protection resistor is connected with the ground input end.
Further, the indicating module includes three adhesion pilot lamps, every adhesion pilot lamp respectively with the different control end of control module is connected, the adhesion pilot lamp indicates anodal adhesion, negative pole adhesion and non-adhesion respectively.
Furthermore, the indication module further comprises a power indicator, a control end of the power indicator is connected with a power indication end of the control module, and the control module is further used for acquiring a power signal of the power module so as to control the state of the power indicator based on the power signal.
Further, the control module includes a processor; the signal input end of the processor is connected with the voltage detection module, the power input end of the processor is connected with the power module, and the signal output end of the processor is connected with the indication module.
Further, the control module further comprises: the output end of the processor is connected with the input end of the amplifying unit, the output end of the amplifying unit is connected with the input end of the indicating module, and the amplifying unit is used for amplifying the driving signal output by the processor and transmitting the amplified driving signal to the indicating module so as to drive the indicating module.
Further, the power supply module comprises a power supply unit and a key switch;
the power supply output end of the power supply unit is connected with the input end of the key switch, the output end of the key switch is respectively connected with the voltage detection module and the control module, and the control end of the key switch controls the communication state of the input end of the key switch and the output end of the key switch.
The embodiment of the utility model provides an adhesion detection device, which firstly supplies power to a voltage detection module and a control module through a power module; detecting a voltage signal of the high-voltage connector through a voltage detection module, and transmitting the voltage signal to a control module; and the control module controls the indication module to indicate the adhesion state of the high-voltage connector in the battery to be tested based on the voltage signal. By utilizing the technical scheme, the accuracy of the adhesion detection of the high-voltage relay is effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of adhesion detection equipment provided in a first embodiment of the present invention;
fig. 2 is a scene schematic diagram of an adhesion detection device according to an embodiment of the present application.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Furthermore, the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. In the following embodiments, optional features and examples are provided in each embodiment, and the individual features described in the embodiments may be combined to form multiple alternatives
Example one
Fig. 1 is the embodiment of the utility model provides a in the structural schematic diagram of an adhesion check out test set that provides, this embodiment is applicable to the condition that confirms that high-voltage relay has or not the adhesion, if, carries out the check of the high-voltage relay state in the battery that awaits measuring when carrying out work such as trial-production experiment, product acceptance, trouble vehicle maintenance, confirms that it has or not the condition of adhesion, this adhesion check out test set can be connected with the battery that awaits measuring to confirm whether the battery that awaits measuring includes the adhesion of high-voltage relay.
The battery that awaits measuring, for example electric automobile power battery high-voltage relay adhesion belongs to very serious high-pressure system key fault problem, to electric automobile manufacturing enterprise, all need carry out the inspection of high-voltage relay state when carrying out work such as trial-manufacture experiment, product acceptance, trouble vehicle maintenance, confirms whether high-voltage relay adheres.
Currently, the checking of the state of the high-voltage relay generally requires reading the state of the relay in the BMS by a computer or other equipment. However, there is a probability of errors and malfunctions occurring when the high voltage relay adhesion detection is performed by the BMS. Therefore, how to improve the accuracy of the adhesion detection of the high-voltage relay is a technical problem to be solved urgently at present.
In order to solve the above technical problem, as shown in fig. 1, an embodiment of the present invention provides an adhesion detection apparatus, including: a voltage detection module 110, a control module 120, an indication module 130, and a power module 140;
the voltage detection module 110 is respectively connected with the power supply module 140, the control module 120 and the high-voltage connector of the battery to be detected, and the control module 120 is connected with the indication module 130;
a power module 140 for supplying power to the voltage detection module 110 and the control module 120; the voltage detection module 110 is used for detecting a voltage signal of the high-voltage connector and transmitting the voltage signal to the control module 120; and the control module 120 is configured to control the indication module 130 to indicate the adhesion state of the high-voltage relay in the battery to be tested based on the voltage signal.
The voltage detection module 110 may be considered as a module for detecting a voltage signal. For example, the voltage detection module 110 may be connected to a high voltage connector of the battery to be tested to detect the voltage of the high voltage connector. The composition of the voltage detection module 110 is not limited herein, and those skilled in the art can select an existing module capable of performing voltage detection as the voltage detection module 110 in the present application.
The control module 120 may be regarded as a module that performs adhesion detection judgment and controls the indication module 130 to perform adhesion state indication. If the voltage signal input by the voltage detection module 110 is judged, it is determined whether the high-voltage relay of the battery to be tested is stuck, so as to control the indication module 130 to perform the status indication. The control module 120 of the present invention may be composed of a processor, or may be composed of a processor and an amplifying unit, which is not limited herein.
The indication module 130 may be considered as a module for indicating the adhesion state of a high voltage relay included in the battery to be tested. The indication module 130 may indicate whether there is sticking of the high voltage relay. The indication module 130 may be composed of an indication lamp or a display screen, and is not limited herein, and can be set by a person skilled in the art according to actual situations. It should be noted that the connection manner between the indication module 130 and the control module 120 may be determined based on the specific content included in the indication module 130, and is not limited herein, and a person skilled in the art may set the connection manner according to the actual situation.
The power module 140 may be considered a module that supplies power to the adhesion detection apparatus. For example, the power module 140 may supply power to the voltage detection module 110 and the control module 120, and the voltage value supplied by the power module 140 to the voltage detection module 110 and the control module 120 is not limited and may be determined according to actual situations. The power supply voltages of the voltage detection module 110 and the control module 120 may be the same or different. If the power supply voltages are different, the power module 140 may output a first voltage to the voltage detection module 110 to supply power to the voltage detection module 110, and the power module 140 may output a second voltage to the control module 120 to supply power to the control module 120. The first voltage and the second voltage are a power supply voltage of the voltage detection module 110 and a power supply voltage of the control module 120, respectively, and specific values are not limited.
The power module 140 may be directly connected to the voltage detection module 110 and the control module 120, or may be indirectly connected to the voltage detection module 110 and the control module 120. If indirectly connected, the power module 140 may be indirectly connected through a switch to control the connection state of the power module 140 with the voltage detection module 110 and the control module 120 based on the state of the switch. Wherein, the switch can be a key switch.
The battery to be tested can be understood as a battery to be subjected to adhesion detection, which includes a high-voltage relay. The battery under test may include a high voltage connector that may be connected to a vehicle to power the vehicle. The utility model discloses in, when the battery adhesion that awaits measuring is examined, can be connected to the high-pressure connector of the battery that awaits measuring with voltage detection module 110 to acquire the voltage signal of high-pressure connector, thereby confirm the adhesion state. The stuck state may indicate whether the high voltage relay is stuck. Illustratively, the blocking state includes blocking and non-blocking, and further, blocking can be subdivided into positive blocking and negative blocking. In this embodiment, the working principle of the adhesion detection apparatus is: voltage detection module 110 is connected with the high voltage connector of the battery to be tested, and after power module 140 is powered on, voltage detection module 110 detects the voltage signal of the high voltage connector and transmits the voltage signal to control module 120, and control module 120 judges the voltage value of the received voltage signal and indicates indication module 130 based on the judged result, thereby realizing the detection of the adhesion state of the high voltage relay in the battery to be tested.
Fig. 2 is a schematic view of a scene of an adhesion detection device according to an embodiment of the present application, referring to fig. 2, the voltage detection module 110 includes a positive input end 111, a negative input end 112, and a ground input end 113;
the positive input end 111 is connected with the positive electrode of the high-voltage connector of the battery to be tested, the negative input end 112 is connected with the negative electrode of the high-voltage connector of the battery to be tested, and the ground input end 113 is connected with the shielding ground of the battery to be tested;
and the voltage detection module 110 is configured to detect a voltage signal HV + of the positive pole of the high-voltage connector and a voltage signal HV-of the negative pole of the high-voltage connector, and transmit the detected voltage signals to the control module 120.
The positive input end 111 and the ground input end 113 of the voltage detection module 110 can detect a voltage signal HV + of the positive pole of the high-voltage connector, and the voltage detection module 110 transmits the detected voltage signal HV + of the positive pole to the control module 120, so that whether positive pole adhesion exists in the high-voltage relay can be determined.
The negative input terminal 112 and the ground input terminal 113 of the voltage detection module 110 can detect the voltage signal HV-of the negative pole of the high-voltage connector, and the voltage detection module 110 transmits the detected voltage signal HV-of the negative pole to the control module 120, so as to determine whether the negative pole of the high-voltage relay is stuck.
Further, the control module 120 is configured to indicate a state of the adhesion indicator 131 in the indication module 130 based on the voltage signal HV + of the positive pole of the high-voltage connector and the voltage signal HV-of the negative pole of the high-voltage connector, so as to determine an adhesion state of the high-voltage relay in the battery to be tested, where the adhesion state includes non-adhesion, positive pole adhesion, and negative pole adhesion.
When controlling the state of the indicator lamp 131 stuck in the indicator module 130 based on the voltage signal, the control module 120 may first determine the magnitude relationship between the acquired positive voltage signal HV + and negative voltage signal HV-and the corresponding threshold value, so as to control the state of the indicator lamp 131 stuck in the indicator module 130 based on the determined magnitude relationship. The adhesion indicator lamp 131 can be regarded as a lamp for indicating the adhesion state of the high-voltage relay in the battery to be tested. The number of the sticking indicator lamps 131 may be at least one without limitation. If the number of the adhesion indicator lamps 131 is one, different adhesion states are indicated by different brightness or different flashing modes of the adhesion indicator lamps 131. If the number of the adhesion indicator lamps 131 is two, one adhesion indicator lamp 131 may indicate adhesion, and the other adhesion indicator lamp 131 indicates non-adhesion. If the number of the adhesion indicating lamps is three, one adhesion indicating lamp 131 can indicate that the positive electrodes are adhered, one adhesion indicating lamp 131 indicates that the negative electrodes are adhered, and the other adhesion indicating lamp 131 indicates that the negative electrodes are not adhered. The adhesion indicator 131 is not limited and may be a light emitting diode.
It can be understood that, the utility model discloses when carrying out the adhesion and detecting, the battery that awaits measuring is non-power supply state, so anodal voltage signal HV + and the voltage signal HV-of negative pole should be less than corresponding threshold value in theory. The threshold may be determined based on the detection accuracy of the voltage detection module 110, but is not limited thereto.
Illustratively, when the voltage signal HV + of the positive electrode is greater than a first threshold value, the positive electrode adhesion indicator lamp lights or flickers; when the voltage signal HV < - > of the negative electrode is greater than a second threshold value, the negative electrode adhesion indicator lamp is lightened or flickers; when the voltage signal HV + of the positive pole is less than or equal to the first threshold value and the voltage signal HV-of the negative pole is less than or equal to the second threshold value, the non-adhesion indicator lamp is lightened or flickers. The first threshold and the second threshold may be determined by the accuracy of the voltage detection module 110, for example, the first threshold and the second threshold are both 1.
Further, the adhesion detection apparatus further includes: a positive electrode protection resistor 150, wherein one end of the positive electrode protection resistor 150 is connected with the positive electrode input end 111, and the other end is connected with the ground input end 113;
further, the adhesion detection apparatus further includes: negative electrode protection resistor 160, negative electrode protection resistor 160 has one end connected to negative electrode input terminal 112 and the other end connected to ground input terminal 113.
The utility model discloses in order to avoid the short circuit of positive input 110 and negative input 112, can be provided with protection resistance, like positive protection resistance 150 and negative protection resistance 160.
Further, the indication module 130 includes three adhesion indicator lamps 131, each adhesion indicator lamp 131 is connected to a different control end of the control module 120, and the adhesion indicator lamps 131 indicate positive electrode adhesion, negative electrode adhesion and non-adhesion.
The utility model discloses can set up three adhesion pilot lamp 131 in order to instruct anodal adhesion, negative pole adhesion and non-adhesion respectively. Both ends of the adhesion indicator lamp 131 may be respectively connected to the control module 120 to perform status indication under the control of the control module 120. The connection state of the adhesion indicator 131 and the control module 120 is not limited as long as it is ensured that the control module 120 can drive the adhesion indicator 131. A signal output of the processor, as included in the control module 120, is connected to the adhesion indicator lamp 131 to drive the adhesion indicator lamp 131. The voltage value output by the signal output end can be equal to the driving voltage value of the adhesion indicator lamp 131; also, for example, a driving signal output from an amplifier included in the control module 120 is transmitted to the stuck indicator lamp 131 to drive the stuck indicator lamp 131.
Further, the adhesion indicating module 130 further includes a power indicator 132, a control end of the power indicator 132 is connected to a power indicating end of the control module 120, and the control module 120 is further configured to obtain a power signal of the power module 140, so as to control a state of the power indicator 132 based on the power signal.
The power indicator light 132 may be understood as a light that indicates the power status of the adhesion detection apparatus. The utility model discloses a power indicator 132 can indicate adhesion check out test set electric quantity whether sufficient. The working principle of the power indicator 132 is not described in detail herein, and reference may be made to the working principle of the adhesion indicator 131. The driving of the power indicator 132 may be determined based on the magnitude of the voltage value obtained by the control module 120 from the power module 140. If the voltage value obtained by the control module 120 from the power module 140 is smaller than the voltage threshold, the current adhesion detection device may be considered to have insufficient electric quantity; otherwise, the electric quantity of the adhesion detection equipment can be considered to be sufficient, and the battery to be detected can be detected.
For example, the status of the adhesion indicator 131 and the power indicator 132 in the indication module 130 may be implemented in various ways, and may be indicated by different statuses of the lights, for example, different flashing times of the lights or different flashing time intervals represent different statuses; different states can be indicated through different colors of the lamps respectively, for example, the yellow lamp is bright and represents the adhesion of the anode of the high-voltage relay in the battery to be tested, the red lamp is bright and represents the adhesion of the cathode of the high-voltage relay in the battery to be tested, and the green lamp is bright and represents that the adhesion of the high-voltage relay in the battery to be tested does not exist.
Further, the control module 120 includes a processor; the signal input end of the processor is connected with the voltage detection module 110, the power input end of the processor is connected with the power module 110, and the signal output end of the processor is connected with the indication module 130.
The power input end of the processor may supply power to the processor, and may also determine whether the power module 140 has sufficient electric quantity based on the voltage value obtained by the power input end.
The signal output by the signal output end of the processor may be used to drive the indication module 130, and the signal input end of the processor receives the voltage signal transmitted by the voltage detection module 110, so as to perform adhesion judgment.
Further, the control module 120 further includes: the output end of the processor is connected with the input end of the amplifying unit, the output end of the amplifying unit is connected with the input end of the indicating module 130, and the amplifying unit is used for amplifying the driving signal output by the processor and transmitting the amplified driving signal to the indicating module 130 so as to drive the indicating module 130.
The utility model provides a control module 120 can also include the amplification unit, and the amplification unit can enlarge the amplitude of the signal that treater signal output part exported. The signal output end of the processor may be indirectly connected with the indication module 130 through an amplification unit to drive the indication module 130.
After the processor determines the voltage signal, the processor may output a driving signal through the signal output terminal, and then drive the indicator 130 after the driving signal is amplified by the amplifying unit. The specific components included in the amplifying unit are not limited as long as the amplifying unit can amplify the driving signal to drive the indication module 130. Such as the amplification unit being implemented by an operational amplifier.
Further, the power supply module 140 includes a power supply unit 141 and a key switch 142;
further, the power output end of the power supply unit 141 is connected to the input end of the key switch 142, the output end of the key switch 142 is connected to the voltage detection module 110 and the control module 120, respectively, and the control end of the key switch 142 controls the connection state between the input end of the key switch 142 and the output end of the key switch 142.
The utility model discloses a can the effective control power module 140 to voltage detection module 110 and control module 120's power supply state, can include electrical unit 141 and key switch 142. The power supply unit 141 may be a unit capable of supplying power. The power unit 141 includes, but is not limited to, a battery, and may also convert the commercial power into the power supply voltages of the voltage detection module 110 and the control module 120 through the voltage conversion module. The key switch 142 may control a communication state between the power supply unit 141 and the voltage detection module 110, and may also control a communication state between the power supply unit 141 and the control module 120.
The key switch 142 may include a control terminal, an input terminal and an output terminal, and the control terminal may control the connection state of the input terminal and the output terminal under the control of a user. If the user presses the key switch 142, the input terminal and the output terminal are connected.
When the input and output of the exemplary key switch 142 are disconnected, the power module 140 is not connected to the voltage detection module 110 and the control module 120, and the adhesion detection device does not operate, and after the input and output of the key switch 142 are connected, the power module 140 is connected to the voltage detection module 110 and the control module 120, and the adhesion detection device starts to operate.
In this embodiment, can utilize above-mentioned adhesion check out test set when the high-voltage relay state to the battery that awaits measuring of power trolley-bus, can realize convenient and safe relay detection flow, the short-term test high-voltage relay adhesion condition through detecting the voltage value between the battery port high pressure positive pole/negative pole that awaits measuring and the level platform respectively.
Example two
The embodiment can be suitable for checking the state of the high-voltage relay when the work such as trial-manufacture test, product acceptance, fault vehicle maintenance and the like is carried out, and the condition of adhesion is determined.
The adhesion detection equipment can be of a cuboid structure, one high-voltage connector matched with the high-voltage connector of the battery to be detected can be arranged, and the shell can be made of metal; the adhesion detection equipment outside can have a key switch 142, 3 adhesion pilot lamps 131 and 1 power indicator 132, and adhesion pilot lamp 131 can indicate respectively that adhesion, anodal adhesion and negative pole adhesion are not gone, and power indicator 132 can indicate that the electric quantity is not enough.
The adhesion detection device is internally provided with a voltage detection module 110, a control module 120, an indication module 130 and a power supply module 140.
The present embodiment may detect a main circuit relay and a charging relay in a high voltage circuit, and the main circuit relay is exemplified as the main circuit relay, and the main circuit relay may include a first high voltage relay K1 and a second high voltage relay K2. If the first high-voltage relay K1 is adhered, the adhesion indicator lamp 131 indicating that the positive electrode is adhered can be turned on; if the second high-voltage relay K2 is adhered, the adhesion indicator lamp 131 indicating that the negative electrode is adhered can be turned on; if neither the first high-voltage relay K1 nor the second high-voltage relay K2 is stuck, the sticking indicator lamp 131 indicating that the sticking is not occurred may be turned on. Power battery (promptly the utility model provides a battery that awaits measuring) is owing to possess insulation resistance, and its positive negative pole can measure the magnitude of voltage to electric platform when the high voltage system goes up the electricity, generally is half of power battery nominal high voltage. The high-voltage relay is the design of normally breaking, when power battery high-voltage relay adhesion, if measure when high-voltage relay should be in the off-state, the high-voltage circuit in the back has a voltage value to ground, then explains that high-voltage relay has taken place the adhesion, which utmost point measured voltage, then which utmost point can be judged as the adhesion.
According to the principle, after the adhesion detection equipment is well inserted into the high-voltage connector at the direct current output end of the battery pack (namely, the battery to be detected), the voltage of the anode to the high-voltage connector shielding layer can be tested through the anode input end 111 and the ground input end 113, and if the voltage reading is continuously larger than 1V, the adhesion indicator lamp 131 indicating the adhesion of the anode flickers. The voltage of the negative pole to the high-voltage connector shielding layer is tested through the negative pole input end 112 and the ground input end 113, if the voltage reading is continuously larger than 1V, the adhesion indicating lamp 131 indicating the adhesion of the negative pole flickers, if the positive pole and negative pole reading is always 1, the normal adhesion indicating lamp 131 is indicated by the flicking, and if the electric quantity of the self power supply module 140 is tested to be lower than the normal working voltage value, the power supply indicating lamp 132 flickers to indicate that the electric quantity is insufficient.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An adhesion detection apparatus, comprising: the device comprises a voltage detection module, a control module, an indication module and a power supply module;
the voltage detection module is respectively connected with the power supply module, the control module and a high-voltage connector of a battery to be detected, and the control module is connected with the indication module;
the power supply module is used for supplying power to the voltage detection module and the control module; the voltage detection module is used for detecting a voltage signal of the high-voltage connector and transmitting the voltage signal to the control module; and the control module is used for controlling the indicating module to indicate the adhesion state of the high-voltage relay in the battery to be tested based on the voltage signal.
2. The adhesion detection apparatus of claim 1, wherein the voltage detection module comprises a positive input, a negative input, and a ground input;
the positive electrode input end is connected with the positive electrode of the high-voltage connector of the battery to be tested, the negative electrode input end is connected with the negative electrode of the high-voltage connector of the battery to be tested, and the ground input end is connected with the shielding ground of the battery to be tested;
the voltage detection module is used for detecting a voltage signal of the anode of the high-voltage connector and a voltage signal of the cathode of the high-voltage connector and transmitting the detected voltage signals to the control module.
3. The adhesion detection apparatus of claim 2, wherein the control module is configured to indicate a state of an adhesion indicator lamp in the indication module based on the voltage signal of the positive pole of the high-voltage connector and the voltage signal of the negative pole of the high-voltage connector to determine an adhesion state of a high-voltage relay in the battery to be tested, where the adhesion state includes non-adhesion, positive pole adhesion, and negative pole adhesion.
4. The adhesion detection apparatus according to claim 2, further comprising: and one end of the positive electrode protection resistor is connected with the positive electrode input end, and the other end of the positive electrode protection resistor is connected with the ground input end.
5. The adhesion detection apparatus according to claim 2, further comprising: and one end of the negative electrode protection resistor is connected with the negative electrode input end, and the other end of the negative electrode protection resistor is connected with the ground input end.
6. The adhesion detection apparatus of claim 1, wherein the indication module comprises three adhesion indicator lights, each adhesion indicator light is connected to a different control end of the control module, and each adhesion indicator light indicates a positive adhesion, a negative adhesion, and no adhesion.
7. The adhesion detection apparatus of claim 6, wherein the indication module further comprises a power indicator, a control end of the power indicator is connected to a power indication end of the control module, and the control module is further configured to obtain a power signal of the power module to control a state of the power indicator based on the power signal.
8. The adhesion detection apparatus of claim 1, wherein the control module comprises a processor; the signal input end of the processor is connected with the voltage detection module, the power input end of the processor is connected with the power module, and the signal output end of the processor is connected with the indication module.
9. The adhesion detection apparatus of claim 8, wherein the control module further comprises: the output end of the processor is connected with the input end of the amplifying unit, the output end of the amplifying unit is connected with the input end of the indicating module, and the amplifying unit is used for amplifying the driving signal output by the processor and transmitting the amplified driving signal to the indicating module so as to drive the indicating module.
10. The adhesion detection apparatus according to any one of claims 1 to 9, wherein the power supply module includes a power supply unit and a key switch;
the power supply output end of the power supply unit is connected with the input end of the key switch, the output end of the key switch is respectively connected with the voltage detection module and the control module, and the control end of the key switch controls the communication state of the input end of the key switch and the output end of the key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021018102.3U CN212514908U (en) | 2020-06-05 | 2020-06-05 | Adhesion detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021018102.3U CN212514908U (en) | 2020-06-05 | 2020-06-05 | Adhesion detection equipment |
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| CN212514908U true CN212514908U (en) | 2021-02-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117250495A (en) * | 2023-11-16 | 2023-12-19 | 广州三晶电气股份有限公司 | Key adhesion detection device |
| CN117250495B (en) * | 2023-11-16 | 2024-04-26 | 广州三晶电气股份有限公司 | Key adhesion detection device |
-
2020
- 2020-06-05 CN CN202021018102.3U patent/CN212514908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117250495A (en) * | 2023-11-16 | 2023-12-19 | 广州三晶电气股份有限公司 | Key adhesion detection device |
| CN117250495B (en) * | 2023-11-16 | 2024-04-26 | 广州三晶电气股份有限公司 | Key adhesion detection device |
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