CN211402725U - Inductive switch module and electronic device - Google Patents

Abstract

The utility model relates to an inductive switch module and electron device, including ultrasonic sensor and control module. The ultrasonic sensor is used for detecting the distance of an object to be measured and generating a measuring signal. The control module comprises a driving circuit, a first switch and a second switch, the driving circuit is electrically connected with the ultrasonic sensor, a controlled end of the first switch and a controlled end of the second switch are respectively electrically connected with the driving circuit, the first switch is used for being communicated with a power supply loop of the indication module, and the second switch is used for being communicated with a power supply loop of the controlled module. So, when ultrasonic sensor detected to remain to survey the target, the inductive switch module not only can control the instruction module operation, and convenience of customers knows that ultrasonic sensor's detection range has the target of awaiting measuring to exist directly perceivedly, can also control the controlled module operation, so the user need not the operation of the controlled module of manual control when knowing to remain to survey the target, and the trigger mode is simpler and convenient, has also satisfied user's multiple output demand.

Description

Inductive switch module and electronic device

Technical Field

The utility model relates to an ultrasonic ranging technical field especially relates to an inductive switch module and electron device.

Background

The digital probe is used as the most frequently used part of a distance measuring sensor and is widely applied to the fields of industry, security protection, household appliances and the like. However, the conventional digital probe has technical defects in some aspects, and the ultrasonic digital probe has excellent electrical properties such as stability and water resistance and a large detection range, so that the defects of the conventional digital probe are overcome.

However, after the traditional ultrasonic digital probe detects, the output result usually only shows whether there is a target to be detected, and the output result is relatively single.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an inductive switch module and an electronic device for solving the problem of relatively single output result of the conventional ultrasonic digital probe.

An inductive switch module comprises an ultrasonic sensor and a control module.

The ultrasonic sensor is used for detecting the distance of a target to be measured and generating a measuring signal. The control module comprises a driving circuit, a first switch and a second switch, the driving circuit is electrically connected with the ultrasonic sensor, a controlled end of the first switch and a controlled end of the second switch are respectively electrically connected with the driving circuit, the first switch is used for communicating a power supply loop of the indication module, and the second switch is used for communicating a power supply loop of the controlled module.

In the induction switch module, a driving circuit of the control module is electrically connected with the ultrasonic sensor, the first switch is electrically connected with the indicating module, the second switch is electrically connected with the controlled module, and when the driving circuit receives a measuring signal of the ultrasonic sensor, the first switch is driven to be communicated with a power supply loop of the indicating module, and the second switch is driven to be communicated with a power supply loop of the controlled module. So, when ultrasonic sensor detected to remain to survey the target, the inductive switch module not only can control the instruction module operation, and convenience of customers knows that ultrasonic sensor's detection range has the target of awaiting measuring to exist directly perceivedly, can also control the controlled module operation, so the user need not the operation of the controlled module of manual control when knowing to remain to survey the target, and the trigger mode is simpler and convenient, has also satisfied user's multiple output demand.

In one embodiment, the second switch comprises a transistor; the input end of the controlled module is electrically connected with the power supply, the output end of the controlled module is electrically connected with the first switch end of the transistor, the controlled end of the transistor is electrically connected with the driving circuit, and the second switch end of the transistor is grounded.

In one embodiment, the transistor includes an MOS transistor, the controlled terminal of the transistor is a gate of the MOS transistor, the first switch terminal is a source of the MOS transistor, and the second switch terminal is a drain of the MOS transistor.

In one embodiment, the indication module comprises an LED indicator, wherein a positive pole of the LED indicator is electrically connected to a power supply, and a negative pole of the LED indicator is electrically connected to the first switch.

In one embodiment, the inductive switch module further comprises a shell, a circuit board and a sensor fixing seat; the circuit board and the sensor fixing seat are accommodated in the shell, the control module is arranged on the circuit board, and the ultrasonic sensor is fixed in the sensor fixing seat.

In one embodiment, the ultrasonic sensor comprises a first ultrasonic sensor and a second ultrasonic sensor; the first ultrasonic sensor is used for transmitting ultrasonic waves, and the second ultrasonic sensor is used for receiving the ultrasonic waves reflected by the target to be detected so as to detect the distance of the target to be detected.

In one embodiment, the sensor fixing seat comprises a top wall and a side wall, wherein the top wall is arranged on the side wall, and the top wall and the side wall jointly form a containing cavity; the top wall is provided with a first through hole and a second through hole which are spaced from each other, the first ultrasonic sensor is accommodated in the accommodating cavity and exposed from the first through hole, and the second ultrasonic sensor is accommodated in the accommodating cavity and exposed from the second through hole.

In one embodiment, the inductive switch module further comprises a filler, and the filler is arranged between the ultrasonic sensor and the sensor fixing seat.

An electronic device comprises an indicating module, a controlled module and an inductive switch module in any one of the above embodiments.

In one embodiment, the electronic device further includes an indication module fixing seat, a through hole is formed in a housing of the inductive switch module, the indication module fixing seat is accommodated in the housing, and the indication module is fixed in the indication module fixing seat and exposed from the through hole.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device and an inductive switch module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an inductive switch module according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an output state of a second switch output terminal according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of an inductive switch module according to an embodiment of the present invention;

fig. 5 is an exploded view of an inductive switch module according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following embodiments, which are taken in conjunction with the accompanying drawings.

Referring to fig. 1, the present invention provides an inductive switch module 100, which includes an ultrasonic sensor 10 and a control module 20.

The ultrasonic sensor 10 is used for detecting the distance of an object to be measured and generating a measurement signal. The control module 20 includes a driving circuit 21, a first switch 22 and a second switch 23, the driving circuit 21 is electrically connected to the ultrasonic sensor 10, a controlled end of the first switch 22 and a controlled end of the second switch 23 are electrically connected to the driving circuit 21, the first switch 22 is used for communicating with a power supply loop of the indication module 210, and the second switch 23 is used for communicating with a power supply loop of the controlled module 220.

The ultrasonic sensor 10 is configured to emit ultrasonic waves, and then by processing the received ultrasonic waves reflected by the target to be measured, the distance to the target to be measured can be calculated, and a measurement signal can be generated, where the measurement signal indicates that the current ultrasonic sensor 10 detects the presence of the target to be measured. The distance may be a distance between the ultrasonic sensor 10 and the object to be measured, or a distance between the electronic device 200 where the inductive switch module 100 is located and the object to be measured, for example, a distance between a vehicle and the object to be measured. In one embodiment, the distance between the target and the ultrasonic sensor 10 is calculated by the following formula: l is distance, V is propagation velocity of ultrasonic wave (sound propagation velocity in air is 350m/s at 15 ℃), and T is flight time of ultrasonic wave.

The control module 20 includes a drive circuit 21, a first switch 22 and a second switch 23. The driving circuit 21 is electrically connected to the ultrasonic sensor 10, and electrically connected to the controlled terminal of the first switch 22 and the controlled terminal of the second switch 23, respectively. The first switch 22 and the second switch 23 are electrically connected to different outputs, the first switch 22 is electrically connected to the indication module 210, and the second switch 23 is electrically connected to the controlled module 220.

The inductive switch module 100 is suitable for the fields of industry, security, household appliances and the like. The controlled module 220 is a different module from the indicating module 210. The controlled module 220 is a different module according to the application scenario of the inductive switch module 100. Taking the security field as an example, the inductive switch module 100 can be used to detect whether a target area is a target to be detected, and the controlled module 220 can be an alarm module, a fire-fighting module, etc.; in the field of home appliances, the controlled module 220 may be a home appliance (e.g., a sweeping robot, an indoor lamp, an air conditioner, etc.). In this manner, the controlled module 220 automatically triggers operation when the ultrasonic sensor 10 detects an object to be measured. In one embodiment, the control module 20 is also used to control the operation of the ultrasonic sensor 10.

When the inductive switch module 100 is in operation, if the ultrasonic sensor 10 detects an object to be measured, a generated measurement signal is transmitted to the driving circuit 21, and the driving circuit 21 transmits a driving signal to the controlled end of the first switch 22 and the controlled end of the second switch 23, respectively. Under the action of the driving signal, the first switch 22 is communicated with a power supply loop of the indication module 210, and the indication module 210 operates; the second switch 23 is connected to the power supply circuit of the controlled module 220, and the controlled module 220 operates. If the ultrasonic sensor 10 does not detect the target to be measured, the measurement signal is not output, the driving circuit 21 does not output the driving signal, the power supply circuit of the indicating module 210 and the power supply circuit of the controlled module 220 are both disconnected, and the indicating module 210 and the controlled module 220 are not operated.

Referring to fig. 1, the present invention further provides an electronic device 200, which includes an indication module 210, a controlled module 220 and an inductive switch module 100.

The electronic device 200 is suitable for the fields of industry, security, household appliances and the like. Taking the security field as an example, the inductive switch module 100 can be used to detect whether a target area is a target to be detected, the controlled module 220 can be an alarm module, a fire-fighting module, etc., and the electronic device 200 is a monitoring device capable of automatically monitoring an alarm; in the field of home appliances, the controlled module 220 may be a home appliance (e.g., a sweeping robot, an indoor lamp, an air conditioner, etc.), and the electronic device 200 is an intelligent home appliance that automatically identifies a user and controls the operation of the home appliance.

In the inductive switch module 100 and the electronic device 200, the driving circuit 21 of the control module 20 is electrically connected to the ultrasonic sensor 10, the first switch 22 is electrically connected to the indication module 210, and the second switch 23 is electrically connected to the controlled module 220, so that when the driving circuit 21 receives a measurement signal from the ultrasonic sensor 10, the first switch 22 is driven to communicate with the power supply loop of the indication module 210, and the second switch 23 is driven to communicate with the power supply loop of the controlled module 220. So, when ultrasonic sensor 10 detected to remain to be measured the target, inductive switch module 100 not only can control instruction module 210 operation, and convenience of customers knows that ultrasonic sensor 10's detection range remains to be measured the target and exists directly perceivedly, can also control controlled module 220 operation, therefore the user need not the operation of manual control controlled module 220 when knowing to remain to be measured the target, and the trigger mode is simpler and convenient. And the user can select different output modes according to different requirements, so that various output requirements of the user are met.

Referring to fig. 2, in one embodiment, the second switch 23 includes a transistor 231. The input terminal of the controlled module 220 is electrically connected to the power supply 1, the output terminal of the controlled module 220 is electrically connected to the first switch terminal of the transistor 231, the controlled terminal of the transistor 231 is electrically connected to the driving circuit 21, and the second switch terminal of the transistor 231 is grounded.

The second switch 23 adopts an open-drain output mode, wherein the first switch end of the transistor 231 is a GPIO output end of the second switch 23, the controlled module 220 is used as a pull-up resistor, the input end of the pull-up resistor is connected with the power supply 1, and the output end of the pull-up resistor is electrically connected with the GPIO output end. Referring to fig. 3, when the inductive switch module 100 is in operation, if the ultrasonic sensor 10 does not detect a target to be detected, the driving circuit 21 does not output a driving signal, the first switch end and the second switch end of the transistor 231 are not turned on, the second switch end is not grounded, the first switch end of the transistor 231 keeps at a high level all the time, that is, the GPIO output end outputs a high level all the time, and at this time, no current passes through the input end and the output end of the controlled module 220. If the ultrasonic sensor 10 detects a target to be detected, the driving circuit 21 transmits a driving signal to the transistor 231, so that the first switch end and the second switch end of the transistor 231 are turned on, the second switch end is grounded, the first switch end of the transistor 231 is pulled down to a low level, that is, the GPIO output end outputs a low level, and at this time, a current passes through the input end and the output end of the controlled module 220. In this way, the second switch 23 of the present embodiment controls the normal operation of the controlled module 220 by using the low voltage through the open-drain output mode, and especially controls the controlled module 220 more safely when the controlled module 220 is in the high voltage mode.

In one embodiment, the transistor 231 comprises a MOS transistor. The transistor 231 includes an MOS transistor, a controlled terminal of the transistor 231 is a gate of the MOS transistor, a first switch terminal is a source of the MOS transistor, and a second switch terminal is a drain of the MOS transistor.

When the inductive switch module 100 works, if the ultrasonic sensor 10 does not detect the target to be detected, the driving circuit 21 does not output the driving signal, the source and the drain of the MOS transistor are not conducted, the drain is not grounded, the source of the MOS transistor always maintains a high level, i.e., the GPIO output terminal always outputs a high level, and at this time, the input terminal and the output terminal of the controlled module 220 do not have current to pass through. If the ultrasonic sensor 10 detects a target to be detected, the driving circuit 21 transmits a driving signal to the MOS transistor, so that the source and the drain of the MOS transistor are conducted, the drain is grounded, the source of the MOS transistor is pulled down to a low level, that is, the GPIO output terminal outputs a low level, and at this time, the input terminal and the output terminal of the controlled module 220 have a current to pass through.

In another embodiment, the MOS transistor can be replaced by a triode. Specifically, the controlled terminal of the transistor 231 is a base of the transistor, the first switch terminal is a collector of the transistor, and the second switch terminal is an emitter of the transistor.

Of course, the second switch 23 may also be another circuit capable of realizing an open-drain output, and is not limited in particular herein.

Referring to fig. 2, in one embodiment, the indication module 210 includes an LED indicator 211, an anode of the LED indicator 211 is electrically connected to the power source 2, and a cathode of the LED indicator 211 is electrically connected to the first switch 22.

When the inductive switch module 100 works, if the ultrasonic sensor 10 does not detect the target to be detected, the driving circuit 21 does not output the driving signal, the first switch 22 is not connected with the power supply loop of the LED indicator lamp 211, and the LED indicator lamp 211 is in an off state; if the ultrasonic sensor 10 detects a target to be detected, the driving circuit 21 outputs a driving signal, the first switch 22 is connected to a power supply loop of the LED indicator 211, and the LED indicator 211 is in a lighting state. In this way, the user can intuitively know whether the target to be detected exists in the detection range of the ultrasonic sensor 10 through the LED indicator 211.

In one embodiment, the first switch 22 is a transistor such as a MOS transistor or a transistor, and the specific connection manner thereof can be seen in the connection manner of the transistor 231 of the second switch 23 and the controlled module 220. Referring to fig. 2, taking a MOS transistor as an example, the input terminal of the indication module 210 is electrically connected to the power supply 2, the output terminal of the indication module 210 is electrically connected to the source of the MOS transistor, the gate of the MOS transistor is electrically connected to the driving circuit 21, and the drain of the MOS transistor is grounded. In this way, the first switch 22 also adopts an open-drain output mode, so that the control of the indication module 210 is safer.

In one embodiment, the power supply 2 connected to the input terminal of the indication module 210 and the power supply 1 connected to the controlled module 220 may be the same power supply or different power supplies.

Referring to fig. 4 and 5, in one embodiment, the inductive switch module 100 further includes a housing 30, a circuit board 40, and a sensor holder 50. The circuit board 40 and the sensor holder 50 are accommodated in the housing 30, the control module 20 is disposed on the circuit board 40, and the ultrasonic sensor 10 is fixed in the sensor holder 50.

The housing 30 provides protection for components housed therein from water, dust, etc. The circuit board 40 and the sensor holder 50 are accommodated in the housing 30. The circuit board 40 is used for electrically connecting the components, and the driving circuit 21 of the control module 20 is electrically connected to the ultrasonic sensor 10, the controlled end of the first switch 22, and the controlled end of the second switch 23 through the circuit board 40. The sensor holder 50 is used to fix the ultrasonic sensor 10, thereby preventing the ultrasonic sensor 10 from being displaced when vibrated, thereby affecting the measurement.

With continued reference to fig. 4 and 5, in one embodiment, the ultrasonic sensor 10 includes a first ultrasonic sensor 11 and a second ultrasonic sensor 12. The first ultrasonic sensor 11 is configured to emit ultrasonic waves, and the second ultrasonic sensor 12 is configured to receive the ultrasonic waves reflected by the object to be detected, so as to detect a distance to the object to be detected.

Due to the physical characteristics of the single ultrasonic sensor, when ultrasonic waves are transmitted, aftershock is generated, so that a blind area exists, namely, the distance cannot be measured by the single ultrasonic sensor in a short distance, and the application of the single ultrasonic sensor is limited in some occasions focusing on short-distance monitoring and wide measuring range.

In this embodiment, a dual ultrasonic sensor mode is adopted, wherein one ultrasonic sensor 10 is used for transmitting ultrasonic waves, and the other ultrasonic sensor 10 is used for receiving ultrasonic waves which are transmitted by the ultrasonic sensor and reflected by a target to be detected, so that the blind area influence caused by aftershocks introduced by the physical characteristics of the ultrasonic sensor when the ultrasonic sensor in the traditional measurement mechanism receives and transmits is effectively reduced, the close range detection capability of the inductive switch module 100 is optimized, the zero blind area detection is realized, and meanwhile, the long range detection capability is also ensured.

Referring to fig. 5, in one embodiment, the sensor fixing base 50 includes a top wall 51 and a side wall 52, the top wall 51 is disposed on the side wall 52, and the top wall 51 and the side wall 52 together form a receiving cavity. The top wall 51 is provided with a first through hole 53 and a second through hole 54 which are spaced apart from each other, the first ultrasonic sensor 11 is accommodated in the accommodating chamber and exposed from the first through hole 53, and the second ultrasonic sensor 12 is accommodated in the accommodating chamber and exposed from the second through hole 54.

The housing chamber is configured to house the first ultrasonic sensor 11 and the second ultrasonic sensor 12. The first through hole 53 is used to expose the first ultrasonic sensor 11, so that the ultrasonic wave emitted from the first ultrasonic sensor 11 can be emitted to the external environment after passing through the first through hole 53. The second through-hole 54 is used to expose the second ultrasonic sensor 12, so that the second ultrasonic sensor 12 can receive ultrasonic waves from the external environment after passing through the second through-hole 54.

In one embodiment, the first through hole 53 has a shape corresponding to the shape of the transmitting end of the first ultrasonic sensor 11, and the second through hole 54 has a shape corresponding to the shape of the receiving end of the second ultrasonic sensor 12, such as a circular shape or an elliptical shape. In this way, the sensor holder 50 does not block the transmission and reception of the ultrasonic waves by the ultrasonic sensor 10, and the first ultrasonic sensor 11 and the second ultrasonic sensor 12 can be prevented from leaking from the first through-hole 53 and the second through-hole 54 due to the first through-hole 53 and the second through-hole 54 being excessively large.

Referring to fig. 5, in one embodiment, the sensor holder 50 further includes a fixing hook 55, the fixing hook 55 extends toward the inside of the sensor holder 50, and the fixing hook 55 is used for fixing the circuit board 40.

In one example, the circuit board 40 may be partially or fully received within the receiving cavity. In the mounting process, the first ultrasonic sensor 11 and the second ultrasonic sensor 12 are aligned with the first through hole 53 and the second through hole 54, respectively, and then placed in the receiving cavity, the circuit board 40 is placed in the receiving cavity, so that the circuit board 40 is partially or completely placed in the receiving cavity, and finally the sensor fixing seat 50 is placed in the housing 30. At this time, the fixing hooks 55 abut against the circuit board 40, so as to prevent the circuit board 40 from being displaced, and the first ultrasonic sensor 11 and the second ultrasonic sensor 12 are stably and reliably connected to the circuit board 40.

In another example, the circuit board 40 is disposed outside the receiving cavity, and the fixing hook 55 includes a first arm and a second arm connected to each other. The first arm extends to the outside of the sensor holder 50, and the second arm extends to the center of the sensor holder 50.

Specifically, the fixing hook 55 is an "L" shaped structure, and the first arm and the second arm are used together to fix the circuit board 40. During installation, the circuit board 40 is placed in the space enclosed by the first arm and the second arm.

In one embodiment, the number of the fixing hooks 55 is plural, and the plurality of fixing hooks 55 are arranged at intervals.

In the present embodiment, a plurality means two or more. Taking fig. 5 as an example, the number of the fixing hooks 55 is four, and the four fixing hooks 55 are respectively located at four corners of the side wall 52, so that the connection between the ultrasonic sensor 10 and the circuit board 40 is more secure. Of course, the number and position of the fixing hooks 55 are specifically set according to the shapes of the sensor holder 50 and the circuit board 40, and are not specifically limited herein.

Of course, in other embodiments, the circuit board 40 may also be directly secured by the housing 30. The inner wall of the housing 30 is also formed with a fixing structure to which the circuit board 40 is fixed.

The fixing structure may be a clamping seat, a protrusion, a groove, a thread, etc. for fixing the circuit board 40. Furthermore, the fixing structure may be a glue layer, i.e. the circuit board 40 may be fixed on the inner wall of the housing 30 by gluing. In this way, the influence on the measurement due to the displacement of the circuit board 40 at the time of movement is prevented.

In one example, a fixing structure for fixing the sensor holder 50 is further formed on the inner wall of the housing 30 to ensure that the sensor holder 50 is not displaced.

Referring to fig. 5, in one embodiment, the inductive switch module 100 further includes a wire harness 60, and the wire harness 60 includes a power wire harness and a signal wire harness. The power harness is connected to the circuit board 40 to supply power to the ultrasonic sensor 10 and the control module 20. The signal wire harness is connected with the control module 20 through the circuit board 40, so that the control module 20 can receive configuration instructions of external equipment (such as an upper computer) to update configuration parameters of the ultrasonic sensor 10, adaptability of the inductive switch module 100 to various occasions is improved, installation and debugging are convenient, and the cost of debugging and installation is reduced.

Referring to fig. 5, in one embodiment, the inductive switch module 100 further includes a filler 70, and the filler 70 is disposed between the ultrasonic sensor 10 and the sensor holder 50.

The filling member 70 has a better damping effect, and can buffer the vibration of the ultrasonic sensor 10 during operation, and in addition, can effectively suppress the aftershock of the ultrasonic sensor 10, thereby improving the usability of the ultrasonic sensor 10.

In one embodiment, the filler 70 comprises a silicone sleeve, a rubber sleeve, or sound absorbing cotton.

The filling member 70 is made of a flexible silica gel sleeve, a rubber sleeve or sound-absorbing cotton, and the damping effect is good.

Referring to fig. 5, in one embodiment, the electronic device 200 further includes an indication module fixing base 212, the housing 30 of the inductive switch module 100 is provided with a through hole 11, the indication module fixing base 212 is accommodated in the housing 30, and the indication module 210 is fixed in the indication module fixing base 212 and exposed from the through hole 11.

The indication module fixing base 212 may be disposed on the inner wall of the housing 30 by snapping, welding, gluing, or the like, so as to fix the indication module 210 on the inductive switch module 100, and thus the electronic device 200 is more compact. In the working process, if the ultrasonic sensor 10 detects an object to be detected, the indication module 210 can send an indication signal to the outside through the through hole 11 of the housing 30. Wherein, the indication signal is one or more of an optical signal and an acoustic signal.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An inductive switch module, comprising:

the ultrasonic sensor is used for detecting the distance of a target to be measured and generating a measuring signal;

the control module comprises a driving circuit, a first switch and a second switch; the driving circuit is electrically connected with the ultrasonic sensor, the controlled end of the first switch and the controlled end of the second switch are respectively electrically connected with the driving circuit, the first switch is used for being communicated with a power supply loop of the indicating module, and the second switch is used for being communicated with a power supply loop of the controlled module.

2. The inductive switch module of claim 1, wherein said second switch comprises a transistor; the input end of the controlled module is electrically connected with the power supply, the output end of the controlled module is electrically connected with the first switch end of the transistor, the controlled end of the transistor is electrically connected with the driving circuit, and the second switch end of the transistor is grounded.

3. The inductive switch module of claim 2, wherein the transistor comprises a MOS transistor, the controlled terminal of the transistor is a gate of the MOS transistor, the first switch terminal is a source of the MOS transistor, and the second switch terminal is a drain of the MOS transistor.

4. The inductive switch module of claim 1, wherein the indication module comprises an LED indicator, wherein a positive pole of the LED indicator is electrically connected to a power source, and a negative pole of the LED indicator is electrically connected to the first switch.

5. The inductive switch module of any of claims 1 to 4, further comprising a housing, a circuit board, and a sensor mount;

the circuit board and the sensor fixing seat are accommodated in the shell, the control module is arranged on the circuit board, and the ultrasonic sensor is fixed in the sensor fixing seat.

6. The inductive switch module of claim 5, wherein said ultrasonic sensor comprises a first ultrasonic sensor and a second ultrasonic sensor;

the first ultrasonic sensor is used for transmitting ultrasonic waves, and the second ultrasonic sensor is used for receiving the ultrasonic waves reflected by the target to be detected so as to detect the distance of the target to be detected.

7. The inductive switch module of claim 6, wherein said sensor holder comprises a top wall and a side wall, said top wall being disposed on said side wall, said top wall and said side wall together forming a receiving cavity;

the top wall is provided with a first through hole and a second through hole which are spaced from each other, the first ultrasonic sensor is accommodated in the accommodating cavity and exposed from the first through hole, and the second ultrasonic sensor is accommodated in the accommodating cavity and exposed from the second through hole.

8. The inductive switch module of claim 5, further comprising a filler member disposed between said ultrasonic sensor and said sensor mount.

9. An electronic device, comprising:

an indication module;

a controlled module; and

the inductive switch module of any of claims 1 to 8.

10. The electronic device of claim 9, further comprising an indication module fixing base, wherein a through hole is formed in a housing of the inductive switch module, the indication module fixing base is accommodated in the housing, and the indication module is fixed in the indication module fixing base and exposed from the through hole.

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