Load fault detection device and electronic device

Abstract

The utility model relates to the technical field of equipment detection, and provides a load fault detection device and electronic equipment, the device comprises a load, a driving unit and a fault detection unit, the load, the driving unit and the fault detection unit are connected to form an electric power path; a driving unit for conducting the power path; the fault detection unit is used for generating a first detection result of an electric power path when the load is in a working state; and generating a second detection result of the power path when the load is in the short circuit state. According to the utility model, a detection result can be changed when the load is in a working state and a short-circuit state, a load short-circuit fault can be rapidly judged based on the change of the result, a power supply system is timely disconnected, and equipment is protected from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment detection, in particular to a load fault detection device and an electronic device. Background Art

[0002] When existing large-scale power equipment is working, different loads configured in the equipment have certain protection functions for the equipment. For example, the electronic components on the equipment will generate a lot of heat, and the electronic components cannot continue to work at a high temperature because they are easy to burn out, reducing the life of the equipment. For this reason, a load (such as a cooling fan) is required to discharge the heat from the equipment in time.

[0003] If the load cannot work properly (for example, the fan is short-circuited), the load cannot complete the protection function of the equipment. At present, the over-temperature protection circuit is used to trigger the equipment to stop working, and the product itself will not be damaged. However, if the over-temperature protection mechanism is used alone to protect the equipment, it takes a certain amount of time to determine whether the load has stopped working. When the load is short-circuited, it will directly cause the input power supply to short-circuit. After a relatively short period of time, the entire power supply system may break down directly, causing product damage. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a load fault detection device, which can generate changes in detection results when the load is in a working state and a short-circuit state, quickly judge the load short-circuit fault based on the change in the result, and disconnect the power supply system in time to protect the equipment from being damaged.

[0005] According to the first aspect of the present utility model, the load fault detection device includes a load, a drive unit and a fault detection unit, wherein:

[0006] The load, the driving unit and the fault detection unit are connected to form a power path;

[0007] The fault detection unit is used to generate a first detection result of the power path when the load is in a working state; and to generate a second detection result of the power path when the load is in a short-circuit state; wherein the first detection result and the second detection result are one of current, voltage or power signals;

[0008] The driving unit is used to make the power path conductive and make the fault detection unit change between generating the first detection result and the second detection result;

[0009] The fault detection unit includes a first transistor, a base of the first transistor is connected to the output end of the driving unit, and a collector of the first transistor generates a first detection result and a second detection result that change with the signal output from the output end of the driving unit; the conduction state of the first transistor changes with the working state or short-circuit state of the load.

[0010] According to the load fault detection device of the embodiment of the utility model, it is possible to produce changes in the detection results when the load is in a working state and a short-circuit state, quickly determine the load short-circuit fault based on the change in the result, and disconnect the power supply system in time to protect the equipment from damage.

[0011] According to an embodiment of the present utility model, the fault detection unit further includes a first resistor and a first capacitor, wherein:

[0012] One end of the first resistor is connected to the output end of the driving unit and the base of the first transistor, and the other end of the first resistor is connected to one end of the first capacitor and GND; the other end of the first capacitor is connected to the base of the first transistor; the emitter of the first transistor is connected to GND, the collector of the first transistor is connected to the first positive signal, and is connected to the detection signal end of the external unit.

[0013] According to an embodiment of the present utility model, the fault detection unit further includes a second resistor. Accordingly,

[0014] One end of the second resistor is connected to the collector of the first transistor, and the other end of the second resistor is input with the first positive signal.

[0015] According to an embodiment of the present utility model, the driving unit includes a second triode, wherein:

[0016] The collector of the second transistor is connected to one end of the load, the base of the second transistor is connected to the control signal end of the external unit, and the other end of the load inputs a second positive signal.

[0017] According to an embodiment of the present utility model, the driving unit further includes a third resistor. Accordingly,

[0018] One end of the third resistor is connected to the collector of the second transistor, the emitter of the second transistor serves as the output end of the driving unit, and the other end of the third resistor is connected to the control signal end of the external unit.

[0019] According to one embodiment of the present utility model, the load fault detection device further includes a control unit, wherein:

[0020] The control signal terminal of the control unit is connected to the driving unit, and is used to send a control signal to the driving unit through the control signal terminal, so that the driving unit turns on or off the power path;

[0021] The detection signal end of the control unit is connected to the fault detection unit and is used to collect the detection result of the fault detection unit through the detection signal end.

[0022] According to an embodiment of the present utility model, the load fault detection device further includes an alarm unit, wherein:

[0023] The alarm unit is connected to the control unit and is used to receive the alarm signal sent by the control unit to perform an alarm action;

[0024] Correspondingly, the control unit is further configured to send an alarm signal to the alarm unit after acquiring the second detection result of the power path.

[0025] According to an embodiment of the present utility model, the load fault detection device further includes a sending unit, wherein:

[0026] The sending unit is connected to the control unit and is used to receive the notification signal sent by the control unit to perform a notification action;

[0027] Correspondingly, the control unit is further configured to send a notification signal to the sending unit after collecting the second detection result of the power path.

[0028] According to an embodiment of the present utility model, the load is a heat dissipation fan configured in an electronic device.

[0029] An electronic device according to an embodiment of the second aspect of the utility model includes the above-mentioned load fault detection device.

[0030] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0031] Furthermore, after driving the load, the short-circuit current keeps the first transistor in a saturated on state, and the level of the detection signal Fan_Check changes from high to low, so that the subsequent processing unit immediately controls the second transistor to turn off, realizing the DC fan shut-off drive, thereby protecting the equipment circuit from damage.

[0032] Furthermore, a load short-circuit alarm can be promptly issued on site to inform the staff to take repair measures.

[0033] Furthermore, the on-site fault situation can be sent to the staff who are not on-site in time, so that the staff can be informed to deal with it in time.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 The structure diagram of the load fault detection device provided by the embodiment of the utility model is Figure 1 ;

[0037] Figure 2 The structure diagram of the load fault detection device provided by the embodiment of the utility model is Figure 2 ;

[0038] Figure 3 The structure diagram of the load fault detection device provided by the embodiment of the utility model is Figure 3 ;

[0039] Figure 4 The structure diagram of the load fault detection device provided by the embodiment of the utility model is Figure 4 ;

[0040] Figure 5 The structure diagram of the load fault detection device provided by the embodiment of the utility model is Figure 5 ;

[0041] Figure 6 The structure diagram of the load fault detection device provided by the embodiment of the utility model is Figure 6 . DETAILED DESCRIPTION

[0042] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0043] When existing large-scale power equipment is working, different loads configured in the equipment have certain protection functions for the equipment. For example, the electronic components on the equipment will generate a lot of heat, and the electronic components cannot continue to work at a high temperature because they are easy to burn out, reducing the life of the equipment. For this reason, a load (such as a cooling fan) is required to discharge the heat from the equipment in time.

[0044] If the load cannot work properly (for example, the fan is short-circuited), the load cannot complete the protection function of the equipment. At present, the over-temperature protection circuit is used to trigger the equipment to stop working, and the product itself will not be damaged. However, if the over-temperature protection mechanism is used alone to protect the equipment, a certain amount of time is required to determine whether the load has stopped working. When the load is short-circuited, it will directly cause the input power supply to short-circuit. In a relatively short period of time, the entire power supply system may break down directly and the product may be damaged. For this reason, the utility model needs to quickly detect that the load has a short-circuit fault in a relatively short period of time, so as to respond quickly and shut down the load.

[0045] thus, Figure 1 The structural diagram of a load fault detection device provided by the utility model is illustrated. Figure 1 The load fault detection device comprises a load 11, a drive unit 12 and a fault detection unit 13, wherein:

[0046] The load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, which is equivalent to a closed circuit. In the present invention, the load fault mentioned is mainly for a short circuit fault, so when the load is normal or short-circuited, the power path can form a closed circuit.

[0047] The driving unit 12 is used to make the power path conductive. That is, when the load is normal or short-circuited, the circuit path is controlled by the driving unit to form a closed circuit loop.

[0048] The fault detection unit 13 is used to generate a first detection result of the power path when the load is in a working state; and to generate a second detection result of the power path when the load is in a short-circuit state. Since the load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, the detection of the power path is reflected in the power parameters. At this time, the first detection result and the second detection result are one of the current, voltage or power signals.

[0049] It can be considered that, since the drive unit turns on the power path when the load is normal or short-circuited, it is equivalent to transmitting a signal representing the normal or short-circuited load to the fault detection unit. Therefore, the drive unit is used to turn on the power path and cause the fault detection unit to change between generating a first detection result and a second detection result.

[0050] In the present invention, when the load is normal, the driving unit is controlled to conduct the power path, the load is in working state, and the fault detection unit generates a detection result, for example, the detection result is a level signal of high level. If the load is in working state and a short circuit fault occurs, the fault detection unit generates another detection result, for example, the detection result is a level signal of low level. At this time, the low level represents that the load is short-circuited, and the high level represents that the load is normal.

[0051] In addition, there is another scenario where the load is short-circuited due to some circumstances before being started. At this time, the drive unit is controlled to turn on the power path, and the fault detection unit generates a level signal of a low level.

[0052] In the present invention, the fault detection unit will generate two detection results when the load is normal or short-circuited. The transistor has an on-off function, and its on-off will cause different power paths to be generated in a certain power unit. To this end, the fault detection unit 13 includes a first transistor Q1, the base of the first transistor Q1 is connected to the output end of the driving unit, and the collector of the first transistor Q1 generates a first detection result and a second detection result that change with the signal output from the output end of the driving unit; the conduction state of the first transistor Q1 changes with the working state or short-circuit state of the load.

[0053] In this regard, it should be noted that, when the load is normal or short-circuited, the driving unit conducts the power path, and the electrical signal in the power path changes. As a result, the signal output by the output end of the driving unit also changes, and this change causes the first transistor in the fault detection unit to turn on or off, thereby generating a first detection result and a second detection result on the collector of the first transistor.

[0054] As can be seen from the above, the load fault detection device of the utility model can reflect the changes before and after the detection signal, and the external unit can also judge that the load has suddenly suffered a short circuit fault under normal working conditions based on the detection signal before and after the changes. In addition, it can also reflect the initial state of the detection signal, and the external unit can also judge that the load has suffered a short circuit fault based on the initial state.

[0055] The load fault detection device provided by the utility model can produce changes in detection results when the load is in a working state and a short-circuit state, quickly judge the load short-circuit fault based on the change in the result, and disconnect the power supply system in time to protect the equipment from being damaged.

[0056] In a further embodiment of the load fault detection device described above, see Figure 1 As shown, the load fault detection device includes a load 11, a drive unit 12 and a fault detection unit 13, wherein:

[0057] The load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, which is equivalent to a closed circuit. In the present invention, the load fault mentioned is mainly for a short circuit fault, so when the load is normal or short-circuited, the power path can form a closed circuit.

[0058] The driving unit 12 is used to make the power path conductive. That is, when the load is normal or short-circuited, the circuit path is controlled by the driving unit to form a closed circuit loop.

[0059] The fault detection unit 13 is used to generate a first detection result of the power path when the load is in a working state; and to generate a second detection result of the power path when the load is in a short-circuit state. Since the load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, the detection of the power path is reflected in the power parameters. At this time, the first detection result and the second detection result are one of the current, voltage or power signals.

[0060] It can be considered that, since the drive unit turns on the power path when the load is normal or short-circuited, it is equivalent to transmitting a signal representing the normal or short-circuited load to the fault detection unit. Therefore, the drive unit is used to turn on the power path and cause the fault detection unit to change between generating a first detection result and a second detection result.

[0061] The fault detection unit 13 includes a first transistor Q1, the base of which is connected to the output end of the driving unit, and the collector of the first transistor Q1 generates a first detection result and a second detection result that change with the signal output from the output end of the driving unit; the conduction state of the first transistor Q1 changes with the working state or short circuit state of the load.

[0062] The fault detection unit 13 further includes a first resistor R1 and a first capacitor C1, wherein:

[0063] One end of the first resistor is connected to the output end of the driving unit and the base of the first transistor, and the other end of the first resistor is connected to one end of the first capacitor and GND; the other end of the first capacitor is connected to the base of the first transistor; the emitter of the first transistor is connected to GND, the collector of the first transistor is connected to the first positive signal VDD, and is connected to the detection signal end Check of the external unit.

[0064] Furthermore, participate Figure 2 , the fault detection unit also includes a second resistor R2, accordingly,

[0065] One end of the second resistor is connected to the collector of the first transistor, and the other end of the second resistor is input with the first positive signal VDD.

[0066] Furthermore, participating Figure 3 , the driving unit includes a second transistor Q2, wherein:

[0067] The collector of the second transistor is connected to one end of the load, the base of the second transistor is connected to the control signal end of the external unit, and the other end of the load is input with the second positive signal VCC.

[0068] Furthermore, participate Figure 4 , the driving unit further includes a third resistor R3, accordingly,

[0069] One end of the third resistor is connected to the collector of the second transistor, the emitter of the second transistor serves as the output end of the driving unit, and the other end of the third resistor is connected to the control signal end of the external unit.

[0070] In order to make the load (such as the cooling fan FAN configured in the electronic device) work normally, the driving signal FAN_EN needs to be set to a high level, so that the transistor Q2 is in the on state. Since the power supply VCC is at a low level, the two sections of the DC fan FAN are respectively high and low levels, thereby driving the DC fan FAN to work. At this time, the DC fan FAN is in a normal working state.

[0071] Fan current I 正常 , the current flowing through resistor R1 is also I 正常 , the voltage I of transistor Q1's B level 正常 *R1, this voltage value is configured to be smaller than the turn-on voltage value of driving transistor Q1, causing transistor Q1 to be unable to turn on. At this time, the level of the detection signal Fan_Check is equivalent to VDD and is judged to be a high level.

[0072] When the fan is short-circuited, the current I flowing through FAN 短路 At this time, transistor Q2 is in a saturated on state, and the current flowing through transistor Q2 and R1 is I 短路 , the voltage I of transistor Q1's B level 短路 *R1, this voltage is configured to be greater than the turn-on voltage value of the driving transistor Q1, and the transistor Q1 is turned on. At this time, the level of the detection signal Fan_Check is equivalent to GND and is judged to be a low level.

[0073] After Fan_Check switches from a high level to a low level, it is determined that the fan is suddenly short-circuited. The subsequent processing unit then immediately sets the drive signal Fan_EN to a low level, and the transistor Q2 is in the off state, thereby shutting down the fan drive.

[0074] A further load fault detection device of the utility model, after driving the load, the short-circuit current keeps the transistor Q1 in a saturated open state, and changes the level of the detection signal Fan_Check from high to low, so that the subsequent processing unit immediately controls the transistor Q2 to be turned off, realizing the fan shut-off drive, thereby protecting the equipment.

[0075] In a further embodiment of the load fault detection device, Figure 5 The load fault detection device comprises a load 11, a drive unit 12, a fault detection unit 13 and a control unit 14, wherein:

[0076] The load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, which is equivalent to a closed circuit. In the present invention, the load fault mentioned is mainly for a short circuit fault, so when the load is normal or short-circuited, the power path can form a closed circuit.

[0077] The driving unit 12 is used to make the power path conductive. That is, when the load is normal or short-circuited, the circuit path is controlled by the driving unit to form a closed circuit loop.

[0078] The fault detection unit 13 is used to generate a first detection result of the power path when the load is in a working state, and to generate a second detection result of the power path when the load is in a short circuit state. Since the load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, the detection of the power path is reflected in power parameters, such as the level.

[0079] Since the control and detection of the above-mentioned driving unit and fault detection unit require the judgment of the subsequent processing unit. The processing unit can be a control unit 14, such as a chip. In this case, one pin of the chip can be used as a control signal terminal, and one pin can be used as a detection signal terminal. Figure 1-4 As shown, one pin of the chip can be connected to Fan_EN and the other pin can be connected to Fan_Check.

[0080] It should be noted that when the load fault detection device only has the function of conducting the power path and generating the detection result of the power path, its control and the judgment of the detection result can be on the control unit outside the device. The control unit mostly uses the pins of the chip to realize the control and judgment functions. When the load fault detection device also has the control and judgment functions of the detection result, at this time, the implementation scheme of the load fault detection device also includes a control unit.

[0081] The further load fault detection device of the utility model, when the load is set inside the intelligent device, such as the fan is set inside to dissipate heat for the internal electrical components, the rotation of the fan cannot be detected, and the sound of the fan rotation cannot be heard at a close distance. At this time, an alarm needs to be issued in time to warn the staff. Figure 6 The load fault detection device includes a load 11, a drive unit 12, a fault detection unit 13, a control unit 14 and an alarm unit 15, wherein:

[0082] The load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, which is equivalent to a closed circuit. In the present invention, the load fault mentioned is mainly for a short circuit fault, so when the load is normal or short-circuited, the power path can form a closed circuit.

[0083] The driving unit 12 is used to make the power path conductive. That is, when the load is normal or short-circuited, the circuit path is controlled by the driving unit to form a closed circuit loop.

[0084] The fault detection unit 13 is used to generate a first detection result of the power path when the load is in a working state, and to generate a second detection result of the power path when the load is in a short circuit state. Since the load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, the detection of the power path is reflected in power parameters, such as the level.

[0085] Since the control and detection of the above-mentioned driving unit and fault detection unit require the judgment of the subsequent processing unit. The processing unit can be a control unit 14, such as a chip. At this time, one pin of the chip can be used as a control signal terminal and one pin can be used as a detection signal terminal.

[0086] For this purpose, the load fault detection device further comprises an alarm unit 15, wherein:

[0087] The alarm unit is connected to the control unit and is used to receive the alarm signal sent by the control unit and execute the alarm action. The alarm unit can be an indicator light or a loudspeaker.

[0088] Correspondingly, the control unit is further used to send an alarm signal to the alarm unit after collecting the second detection result of the power path.

[0089] The utility model further provides a load fault detection device. When the load is set inside the smart device, such as a fan set inside to dissipate heat for internal electrical components, the rotation of the fan cannot be detected, and the sound of the fan rotation cannot be heard at a close distance. At this time, if the staff is not on site, it is necessary to promptly inform the staff of the load short circuit. For this reason, continue to participate Figure 6The load fault detection device includes a load 11, a drive unit 12, a fault detection unit 13, a control unit 14, an alarm unit 15 and a sending unit 16, wherein:

[0090] The load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, which is equivalent to a closed circuit. In the present invention, the load fault mentioned is mainly for a short circuit fault, so when the load is normal or short-circuited, the power path can form a closed circuit.

[0091] The driving unit 12 is used to make the power path conductive. That is, when the load is normal or short-circuited, the circuit path is controlled by the driving unit to form a closed circuit loop.

[0092] The fault detection unit 13 is used to generate a first detection result of the power path when the load is in a working state, and to generate a second detection result of the power path when the load is in a short circuit state. Since the load 11, the drive unit 12 and the fault detection unit 13 are connected to form a power path, the detection of the power path is reflected in power parameters, such as the level.

[0093] Since the control and detection of the above-mentioned driving unit and fault detection unit require the judgment of the subsequent processing unit. The processing unit can be a control unit 14, such as a chip. At this time, one pin of the chip can be used as a control signal terminal and one pin can be used as a detection signal terminal.

[0094] For this purpose, the load fault detection device further comprises an alarm unit 15, wherein:

[0095] The alarm unit is connected to the control unit and is used to receive the alarm signal sent by the control unit and execute the alarm action. The alarm unit can be an indicator light or a loudspeaker.

[0096] Correspondingly, the control unit is further used to send an alarm signal to the alarm unit after collecting the second detection result of the power path.

[0097] The load fault detection device further comprises a sending unit 16, wherein:

[0098] The sending unit is connected to the control unit and is used to receive the notification signal sent by the control unit to perform the notification action;

[0099] Correspondingly, the control unit is further configured to send a notification signal to the sending unit after collecting the second detection result of the power path.

[0100] In the present invention, the sending unit may adopt a wireless sending method, such as sending the notification signal to the mobile terminal of the staff member by wireless sending method.

[0101] The utility model also provides an electronic device, including the above-mentioned load fault detection device. The load in the electronic device can play a certain protective function on the protection device. For example, if the electronic device has a heat dissipation fan, it can take away the heat from the device, protect the electronic components on the device from damage, and increase the service life of the device.

[0102] Based on the above explanation of the principle of the load fault detection device, the processing of the load fault detection device applied to the electronic device will not be described in detail here.

[0103] The electronic device provided by the utility model can produce changes in the detection results when the load is in a working state and a short-circuit state, quickly judge the load short-circuit fault based on the change in the result, and disconnect the power supply system in time to protect the equipment from damage

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A load fault detection device, characterized in that: It includes a load, a drive unit and a fault detection unit, wherein: The load, the driving unit and the fault detection unit are connected to form a power path; The fault detection unit is used to generate a first detection result of the power path when the load is in a working state; and to generate a second detection result of the power path when the load is in a short-circuit state; wherein the first detection result and the second detection result are one of current, voltage or power signals; The driving unit is used to make the power path conductive and make the fault detection unit change between generating the first detection result and the second detection result; The fault detection unit includes a first transistor, a base of the first transistor is connected to the output end of the driving unit, and a collector of the first transistor generates a first detection result and a second detection result that change with the signal output from the output end of the driving unit; the conduction state of the first transistor changes with the working state or short-circuit state of the load.

2. The load fault detection device according to claim 1, characterized in that: The fault detection unit further includes a first resistor and a first capacitor, wherein: One end of the first resistor is connected to the output end of the driving unit and the base of the first transistor, and the other end of the first resistor is connected to one end of the first capacitor and GND; the other end of the first capacitor is connected to the base of the first transistor; the emitter of the first transistor is connected to GND, the collector of the first transistor is connected to the first positive signal, and is connected to the detection signal end of the external unit.

3. The load fault detection device according to claim 2, characterized in that: The fault detection unit further includes a second resistor. Accordingly, One end of the second resistor is connected to the collector of the first transistor, and the other end of the second resistor is input with the first positive signal.

4. The load fault detection device according to claim 2, characterized in that: The driving unit comprises a second triode, wherein: The collector of the second transistor is connected to one end of the load, the base of the second transistor is connected to the control signal end of the external unit, and the other end of the load inputs a second positive signal.

5. The load fault detection device according to claim 4, characterized in that: The driving unit further includes a third resistor. Accordingly, One end of the third resistor is connected to the collector of the second transistor, the emitter of the second transistor serves as the output end of the driving unit, and the other end of the third resistor is connected to the control signal end of the external unit.

6. The load fault detection device according to claim 1, characterized in that: The load fault detection device further comprises a control unit, wherein: The control signal terminal of the control unit is connected to the driving unit, and is used to send a control signal to the driving unit through the control signal terminal, so that the driving unit turns on or off the power path; The detection signal end of the control unit is connected to the fault detection unit and is used to collect the detection result of the fault detection unit through the detection signal end.

7. The load fault detection device according to claim 6, characterized in that: The load fault detection device further comprises an alarm unit, wherein: The alarm unit is connected to the control unit and is used to receive the alarm signal sent by the control unit to perform an alarm action; Correspondingly, the control unit is further configured to send an alarm signal to the alarm unit after acquiring the second detection result of the power path.

8. The load fault detection device according to claim 7, characterized in that: The load fault detection device further comprises a sending unit, wherein: The sending unit is connected to the control unit and is used to receive the notification signal sent by the control unit to perform a notification action; Correspondingly, the control unit is further configured to send a notification signal to the sending unit after collecting the second detection result of the power path.

9. The load fault detection device according to any one of claims 1 to 8, characterized in that: The load is a heat dissipation fan configured in the electronic equipment.

10. An electronic device, characterized in that: The load fault detection device comprises the load fault detection device as described in any one of claims 1 to 9.

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