Fascia gun and driving circuit thereof

Abstract

The utility model relates to a fascia gun and a driving circuit thereof, and relates to the technical field of massage equipment. The fascia gun comprises a massage head and a power assembly; the massage head can be connected with or separated from the power assembly, and the power assembly is used for driving the massage head to vibrate when connected with the massage head. The driving circuit comprises a power circuit, a switching circuit and a control circuit, and the power circuit is connected with the control circuit through the switching circuit; the control circuit is used for being connected with the power assembly. The switch circuit is used for being switched on when the massage head is connected with the power assembly and switched off when the massage head is separated from the power assembly. And the control circuit is used for outputting a shutdown signal for controlling the power assembly to be shut down when the switching circuit is switched on, and outputting a startup signal for controlling the power assembly to be started when the switching circuit is switched off. And the safety risk caused by the falling of the massage head can be reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of massage devices, in particular to a fascia gun and a driving circuit of the fascia gun. BACKGROUND

[0002] The fascia gun can relax the human body through the vibration of the massage head and reduce tissue adhesion through resonance to restore the elasticity of muscles and fascia. However, the massage head of the existing fascia gun may fall off, affecting normal use. CONTENT OF THE UTILITY MODEL

[0003] The present disclosure provides a fascia gun and a driving circuit of the fascia gun, which can reduce the safety risk caused by the falling of the massage head.

[0004] According to one aspect of the present disclosure, a driving circuit of a fascia gun is provided, the fascia gun comprising a massage head and a power assembly; the massage head is connectable with or separable from the power assembly, and the power assembly is used to drive the massage head to vibrate when connected with the massage head;

[0005] The driving circuit comprises a power supply circuit, a switch circuit and a control circuit, the power supply circuit is connected with the control circuit through the switch circuit; the control circuit is used to be connected with the power assembly; the switch circuit is used to be turned on when the massage head is connected with the power assembly, and turned off when the massage head is separated from the power assembly;

[0006] The control circuit is used to output a shutdown signal for controlling the power assembly to shut down when the switch circuit is turned on, and output a startup signal for controlling the power assembly to start up when the switch circuit is turned off.

[0007] In an exemplary embodiment of the present disclosure, the control circuit further comprises a reminding circuit, the reminding circuit is connected with the switch circuit, and is used to issue an alarm when the switch circuit is turned on.

[0008] In an exemplary embodiment of the present disclosure, the reminding circuit comprises a delay sub-circuit and an alarm device, the alarm device is connected with the switch circuit through the delay sub-circuit, the delay sub-circuit is used to be turned on for a specified time length when the switch circuit is turned on, and the alarm device is used to issue an alarm when the delay sub-circuit is turned on.

[0009] In an exemplary embodiment of the present disclosure, the delay sub-circuit comprises a switching transistor and a first capacitor, a first electrode of the switching transistor is connected with the switch circuit, a second electrode is connected with the alarm device, and a gate electrode is connected with the first capacitor; the gate electrode and the first electrode of the switching transistor are connected.

[0010] In an example embodiment of the present disclosure, the delay sub-circuit further comprises a second capacitor, which is connected in parallel with the first capacitor, and the capacitance of the second capacitor is different from that of the first capacitor.

[0011] In an example embodiment of the present disclosure, the alarm device comprises a buzzer.

[0012] In an example embodiment of the present disclosure, the driving circuit further comprises a first voltage dividing circuit, and the switch circuit is connected to the control circuit through the first voltage dividing circuit.

[0013] In an example embodiment of the present disclosure, the switch circuit is connected to the control circuit through the delay sub-circuit, and the control circuit is configured to output a shutdown signal for shutting down the power assembly when the delay sub-circuit is turned on.

[0014] In an example embodiment of the present disclosure, the driving circuit further comprises a second voltage dividing circuit, and the delay sub-circuit is connected to the control circuit through the second voltage dividing circuit.

[0015] According to an aspect of the present disclosure, there is provided a fascia gun comprising a massage head, a power assembly, and a driving circuit as described in any of the above embodiments; the massage head is connectable to or separable from the power assembly, and the power assembly is configured to drive the massage head to vibrate when connected to the massage head.

[0016] In an example embodiment of the present disclosure, the massage head is provided with a first connector, and the power assembly is provided with a second connector; the switch circuit is arranged at the second connector; when the first connector is connected to the second connector, the massage head is connected to the power assembly, and the switch circuit is turned off; when the first connector is separated from the second connector, the massage head is separated from the power assembly, and the switch circuit is turned on.

[0017] The fascia gun and its driving circuit of the present disclosure can trigger the switch circuit through the massage head to control the switch circuit to switch between being turned on and turned off; specifically, when the massage head is not installed or falls off, the massage head is separated from the power assembly, at this time, the switch circuit is in the turned-on state, the power supply circuit is connected to the control circuit, and the control circuit can output a shutdown signal to the power assembly to shut down the power assembly; when in use, the massage head can be connected to the power assembly, and the massage head can turn off the switch circuit, disconnect the power supply circuit from the control circuit, and output a startup signal to the power assembly to start the power assembly, at this time, the user can operate the fascia gun to drive the massage head to vibrate through the power assembly. Thus, the state of the massage head can be detected through the driving circuit, and the state of the power assembly can be controlled based on the detection result, so that the power assembly can be stopped in time in the case of the massage head falling off to avoid accidents and reduce safety risks.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. It is readily apparent to one skilled in the art that the following description is merely exemplary and explanatory of the present disclosure and that other embodiments can be available as non-inventive to one skilled in the art without departing from the scope of the present disclosure.

[0020] Figure 1 Structure diagram of an embodiment of the driving circuit of the present disclosure.

[0021] Figure 2 Circuit schematic diagram of an embodiment of the driving circuit of the present disclosure.

[0022] Figure 3 Circuit schematic diagram of another embodiment of the driving circuit of the present disclosure.

[0023] Figure 4 Schematic diagram of the spring switch in an embodiment of the driving circuit of the present disclosure.

[0024] Explanation of reference numerals:

[0025] 1. Massage head;

[0026] 2. Power assembly;

[0027] 3. First joint;

[0028] 4. Second joint;

[0029] 5. Shell;

[0030] 6. Driving circuit; 61. Control circuit; 62. Power supply circuit; U1. Battery; 63. Switching circuit; S1. Spring switch; S11. Conductive spring; S12. Insulator; 64. Reminder circuit; 641. Delay sub-circuit; M1. Switching transistor; C1. First capacitor; C2. Second capacitor; 642. Alarm device; 65. First voltage dividing circuit; R1. First resistor; 66. Second voltage dividing circuit; R2. Second resistor; R3. Voltage dividing resistor; R4. Current limiting resistor;

[0031] 7. Display device. DETAILED DESCRIPTION

[0032] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art. Like reference numerals refer to like elements throughout the various figures, and thus a detailed description of the same will not be repeated. In addition, the drawings are only schematic and the dimensions are not necessarily to scale.

[0033] The terms "one", "a", "an", "the", and "at least one" are used to mean that "one or more" of something is present; the terms "comprises", "comprising", "has", "having", "includes", "including", "contains", "containing" or variations thereof are used to mean "including but not limited to", and the term "consisting of" is used to mean "including and limited to"; the term "first", "second", "third", etc. are used only as labels, and are not meant to limit their objects in number.

[0034] As shown in Figure 1 The present disclosure provides a fascia gun, which can include a massage head 1 and a power assembly 2, the massage head 1 is detachably connected with the power assembly 2, so that the massage head 1 and the power assembly 2 can be connected or separated, and when the two are connected, the power assembly 2 can drive the massage head 1 to vibrate in order to massage.

[0035] In some embodiments of the present disclosure, in order to realize the connection of the massage head 1 and the power assembly 2, the fascia gun can further include a first connector 3 and a second connector 4, the first connector 3 is arranged on the massage head 1, the second connector 4 is arranged on the power assembly 2, the first connector 3 can be docked with the second connector 4, thereby connecting the massage head 1 and the power assembly 2, of course, the first connector 3 can also be separated from the second connector 4, so as to disassemble the massage head 1.

[0036] As shown in Figure 2 The fascia gun further includes a driving circuit 6, which can include a control circuit 61, the control circuit 61 can be connected with the power assembly 2 and can control the power assembly 2 to shut down or start up. At the same time, the fascia gun can also be provided with an operation control, which can be a button, a knob, etc. In the start-up state of the power assembly 2, the user can make the power assembly 2 start to output power by operating the operation control, so that the massage head 1 vibrates, of course, the power assembly 2 can also be stopped to output power by operating the operation control; in the shutdown state of the power assembly 2, even if the operation control is operated, the power assembly 2 does not output power.

[0037] In some embodiments of the present disclosure, the power assembly 2 can include a driving motor which can be used to drive the massage head 1 to vibrate, and the second joint 4 can be arranged at the output end of the driving motor. The power assembly 2 is powered off, that is, the driving motor is powered off, and the power assembly 2 is powered on, that is, the driving motor is powered on. The control circuit 61 can be an MCU (Micro Control Unit), and can also be a PLC (Programmable Logic Controller) or other circuit capable of controlling the power assembly 2, which is not particularly limited here.

[0038] As shown in Figure 1 , the fascia gun can further include a shell 5, and the power assembly 2 is arranged in the shell 5. The massage head 1 can be inserted into the shell 5 and connected with the power assembly 2, but the massage head 1 is separated from the power assembly 2, and does not necessarily completely separate from the shell 5, that is, there can be a case that the massage head 1 is not separated from the shell 5 but is separated from the power assembly 2. In order to facilitate the timely discovery of the problem of the massage head 1 falling off and to avoid the power assembly 2 continuing to run when the massage head 1 falls off, the present disclosure provides a driving circuit 6 which controls the power assembly 2 to be powered off when the massage head 1 falls off, thereby preventing accidents.

[0039] As shown in Figure 2 and Figure 3 , the above-mentioned driving circuit 6 can include a power supply circuit 62, a switching circuit 63 and the above-mentioned control circuit 61. The power supply circuit 62 is connected with the switching circuit 63, and the switching circuit 63 is connected with the control circuit 61. The switching circuit 63 is arranged at the connection between the power assembly 2 and the massage head 1, and when the massage head 1 is separated from the power assembly 2, the switching circuit 63 is turned on, that is, the switching circuit 63 is in a normally closed state. At this time, the power supply circuit 62 is in communication with the control circuit 61, and the control circuit 61 can receive a power supply signal, that is, if the control circuit 61 receives a power supply signal from the power supply circuit 62, it indicates that the massage head 1 is separated from the power assembly 2. At this time, the control circuit 61 can output a power-off signal to the power assembly 2 to make the power assembly 2 powered off.

[0040] When the massage head 1 is connected with the power assembly 2, the massage head 1 triggers the switching circuit 63 to make the switching circuit 63 turn off, and the control circuit 61 no longer receives the power supply signal from the power supply circuit 62, indicating that the massage head 1 is not separated from the power assembly 2. At this time, the control circuit 61 can output a power-on signal to the power assembly 2 to make the power assembly 2 powered on. In this way, the state of the massage head 1 can be detected by the driving circuit 6, and the state of the power assembly 2 can be controlled based on the detection result, so that the power assembly 2 can be stopped running in time in the case that the massage head 1 falls off, thereby avoiding accidents.

[0041] The power required for the operation of the control circuit 61 can be provided by other power sources, and the power supply circuit 62 described above is used to provide a power supply signal that can reflect the state of the switch circuit 63 to the control circuit 61 based on the state of the switch circuit 63. At the same time, the above-mentioned power-off signal and power-on signal can be reflected by different states of the same signal, for example, the control circuit 61 outputs a pulse signal to the power assembly 2, and when the pulse signal is at a high level, it is a power-off signal, and when it is at a low level, it is a power-on signal, and the two can be interchanged. Of course, the power-off signal and the power-on signal can also be two independent signals.

[0042] As shown in Figure 1 In some embodiments of the present disclosure, the switch circuit 63 can be provided on the second joint 4; when the first joint 3 is connected to the second joint 4, the massage head 1 is connected to the power assembly 2, and the switch circuit 63 is triggered by the first joint 3 to be disconnected; when the first joint 3 is separated from the second joint 4, the massage head 1 is separated from the power assembly 2, and the switch circuit 63 returns to the normally closed state, that is, the switch circuit 63 is turned on. In some embodiments, the separation of the massage head 1 and the switch circuit 63 can mean that the distance between them is greater than 1 mm.

[0043] As shown in Figure 2 and Figure 4 In some embodiments of the present disclosure, the switch circuit 63 can include a reed switch S1, which can be in a normally closed state and be turned off after being triggered. For example, the reed switch S1 can include two movable conductive reeds S11, one of which is connected to the power supply circuit 62 and the other of which is connected to the control circuit 61. The two conductive reeds S11 can be in contact under the action of a spring or other elastic member, so that the reed switch S1 is in a normally closed state. The reed switch S1 also includes a movable insulator S12, which is inserted between the two conductive reeds S11 when the massage head 1 presses the insulator S12, so that the reed switch S1 is turned off; when the massage head 1 is separated, the insulator S12 can be pulled out from between the two conductive reeds S11, so that the reed switch S1 returns to the normally closed state. Of course, the reed switch S1 can also use other structures, as long as it can be switched from the normally closed state to the off state under external pressure, and the structure is not specially limited here.

[0044] As shown in Figure 3 In some embodiments of the present disclosure, the power supply circuit 62 can include a battery U1, which can be a lithium battery, an alkaline battery, etc., which is not specially limited here as long as it can provide a power supply signal. The output voltage of the power supply circuit 62 can be 5V, and of course it can also be less than or greater than 5V.

[0045] Further, as shown in Figure 3As shown, the drive circuit 6 also includes a first voltage divider circuit 65. The switching circuit 63 is connected to the control circuit 61 through the first voltage divider circuit 65. For example, the spring switch S1 can be connected to the first voltage divider circuit 65, which in turn is connected to the control circuit 61. When the switching circuit 63 is turned on, the voltage transmitted to the control circuit 61 through the first voltage divider circuit 65 is less than the voltage output by the power supply circuit 62, thus avoiding exceeding the upper limit of the voltage required by the control circuit 61.

[0046] In some embodiments of this disclosure, the first voltage divider circuit 65 may include a plurality of first resistors R1 connected in series. For example, the output voltage of the power supply circuit 62 is 5V, and the control circuit 61 includes an MCU whose operating voltage is less than 5V. After passing through the first voltage divider circuit 65, the voltage input to the control circuit 61 is less than 5V, such as 3.3V.

[0047] like Figure 2 As shown, in some embodiments of this disclosure, the control circuit 61 may further include an alert circuit 64, which is connected to the switch circuit 63 and can issue an alarm when the switch circuit 63 is turned on, reminding the user that the massage head 1 has disengaged from the power component 2. The form of the alarm includes, but is not limited to, sound, light, and vibration.

[0048] like Figure 2 and Figure 3 As shown, to avoid the alarm duration being too long, the reminder circuit 64 includes a delay sub-circuit 641 and an alarm device 642. The alarm device 642 is connected to the switch circuit 63 through the delay sub-circuit 641. The delay sub-circuit 641 can be turned on when the switch circuit 63 is turned on, and the on state can be maintained for a specified duration. The alarm device 642 can issue an alarm when the delay sub-circuit 641 is turned on, thereby controlling the duration of the alarm through the delay sub-circuit 641.

[0049] like Figure 3 As shown, in some embodiments of this disclosure, the delay sub-circuit 641 may include a switching transistor M1 and a first capacitor C1, wherein:

[0050] The switching transistor M1 includes a gate, a first terminal, and a second terminal. The conduction and turn-off of the first and second terminals can be achieved by controlling the voltage of the gate. The first terminal is the source, and the second terminal is the drain; however, the first terminal can also be the drain, and the second terminal can also be the source. Specifically, if the input signal is from the first terminal, then the first terminal is the source, and the second terminal is the drain; if the input signal is from the second terminal, then the second terminal is the source, and the first terminal is the drain. In other words, the source and drain can be interchanged depending on the change in the input signal.

[0051] The switching transistor M1 can be a P-type or N-type transistor. For a P-type transistor, when the gate receives a high level, the first and second terminals are turned off; when the gate receives a low level, the first and second terminals are turned on. For an N-type transistor, when the gate receives a high level, the first and second terminals are turned on; when the gate receives a low level, the first and second terminals are turned off.

[0052] The first capacitor C1 can be any type of capacitor, such as a ceramic capacitor, an electrolytic capacitor, or a film capacitor, as long as it can store charge.

[0053] like Figure 3 As shown, the first terminal of the switching transistor M1 is connected to the switching circuit 63, for example, the first terminal of the switching transistor M1 is connected to the spring switch S1; the second terminal of the switching transistor M1 is connected to the alarm device 642, and its gate is connected to the first terminal, so that when the switching circuit 63 is turned on, the output voltage of the power supply circuit 62 can be written into the gate of the switching transistor M1, turning on the switching transistor M1, and then turning on the power supply circuit 62 and the alarm device 642. At this time, the alarm device 642 sounds an alarm. At the same time, in order to prevent the switching transistor M1 from being damaged due to excessive current, the gate of the switching transistor M1 and the first terminal can be connected through the current-limiting resistor R4, and the current output by the power supply circuit 62 can be transmitted to the gate of the switching transistor M1 through the current-limiting resistor R4.

[0054] The gate of the switching transistor M1 is also connected to the first capacitor C1. For example, the first capacitor C1 has a first pin and a second pin. The gate of the switching transistor M1 is connected to the first pin of the first capacitor C1, and the second pin of the first capacitor C1 can be grounded or connected to other constant reference voltages.

[0055] Taking a P-type transistor as an example, when the switching circuit 63 is turned on, the power supply circuit 62 is connected to the first capacitor C1 and charges the first capacitor C1. As charging proceeds, the gate voltage of the switching transistor M1 gradually increases until the switching transistor M1 is turned off. At this time, the alarm device 642 stops emitting an alarm. The time from turn-on to turn-off of the switching transistor is a specified duration. Therefore, different values ​​of the first capacitor C1 can make the conduction time of the switching transistor M1 different. Thus, by using different values ​​of the first capacitor C1, the duration of the alarm emitted by the alarm device 642 can be limited to a specified duration, which is only sufficient to remind the user that the massage head 1 has fallen off, avoiding prolonged alarms. The specified duration can be 0.5 seconds, 1 second, etc.

[0056] Furthermore, such as Figure 3As shown, in some embodiments of this disclosure, the delay sub-circuit 641 further includes a second capacitor C2, which can be connected in parallel with the first capacitor C1. That is, the first pin of the second capacitor C2 is connected to the first pin of the first capacitor C1, and the second pin of the second capacitor C2 is connected to the second pin of the first capacitor C1. For example, the first pins of the first capacitor C1 and the second capacitor C2 are both connected to the gate of the switching transistor M1, and the second pins are both grounded.

[0057] During testing of the delay sub-circuit 641 and during normal operation of the drive circuit 6, both the first capacitor C1 and the second capacitor C2 can function as filters. Since their capacitance values ​​are different, and the capacitance value is related to the filtering frequency, connecting the first capacitor C1 and the second capacitor C2 in parallel can broaden the filtering frequency range. Furthermore, the capacitance value of the second capacitor C2 can be greater than that of the first capacitor C1; for example, the first capacitor C1 can be 100nF, and the second capacitor C2 can be 0.4μF.

[0058] In addition, the delay sub-circuit 641 can also be divided by multiple voltage divider resistors R3. For example, there can be two voltage divider resistors R3, which are connected in series between the gate of the switching transistor M1 and a ground terminal. The first capacitor C1 and the second capacitor C2 can be connected in parallel with the voltage divider resistor R3 near the ground terminal.

[0059] In some embodiments of this disclosure, the alarm device 642 may include a buzzer that emits an audible alert when the switching circuit 63 is turned on. Alternatively, the alarm device 642 may also include a light-emitting element such as a warning light that illuminates or flashes when the switching circuit 63 is turned on.

[0060] like Figure 2 and Figure 3 As shown, in some embodiments of this disclosure, the switching circuit 63 can be connected to the control circuit 61 via a delay sub-circuit 641. When the delay sub-circuit 641 is turned on, the control circuit 61 can output a shutdown signal to control the power component 2 to shut down. That is, when the delay sub-circuit 641 is turned on, the control circuit 61 can also control the power component 2 to shut down.

[0061] Furthermore, such as Figure 3 As shown, the driving circuit 6 also includes a second voltage divider circuit 66, and the delay sub-circuit 641 is connected to the control circuit 61 through the second voltage divider circuit 66. For example, the second terminal of the switching transistor M1 can be connected to the second voltage divider circuit 66, which is connected to the control circuit 61. When the switching circuit 63 is turned on and the delay sub-circuit 641 is turned on, the second voltage divider circuit 66 can reduce the voltage transmitted from the delay sub-circuit 641 to the control circuit 61 to a voltage no higher than the upper limit of the voltage required by the control circuit 61, that is, the voltage output by the second voltage divider circuit 66 is less than the voltage output by the power supply circuit 62.

[0062] In some embodiments of the present disclosure, the second voltage dividing circuit 66 can include a plurality of second resistors R2 connected in series. For example, the output voltage of the power supply circuit 62 is 5V, the control circuit 61 is an MCU, and the working voltage of the MCU is less than 5V. After passing through the second voltage dividing circuit 66, the voltage input to the control circuit 61 is less than 5V, for example, 3.3V, etc.

[0063] Of course, in other embodiments of the present disclosure, the delay sub-circuit can also not be connected with the control circuit, and only control the time length of the alarm device to issue an alarm, and the control circuit can control the power assembly 2 through the state of the switching circuit. Correspondingly, the second voltage dividing circuit 66 can also not be provided.

[0064] In some embodiments of the present disclosure, the fascia gun can further include a display device 7, which can be provided on the housing 5, for displaying the running information of the fascia gun. The running information can include the vibration frequency (which can be represented by a plurality of gears), the remaining power, etc. Of course, the display device can adopt a touch display device, so that the user can operate in a touch manner.

[0065] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the content of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow, in general, the principles of the present disclosure and include the known equivalents of the functional components and features disclosed herein. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A driving circuit (6) of a fascia board gun, characterized in that, The fascia gun comprises a massage head (1) and a power assembly (2); the massage head (1) can be connected with or separated from the power assembly (2), and the power assembly (2) is used for driving the massage head (1) to vibrate when connected with the massage head (1); The driving circuit (6) comprises a power supply circuit (62), a switching circuit (63) and a control circuit (61), the power supply circuit (62) is connected with the control circuit (61) through the switching circuit (63); the control circuit (61) is used for being connected with the power assembly (2); the switching circuit (63) is used for being turned on when the massage head (1) is connected with the power assembly (2), and being turned off when the massage head (1) is separated from the power assembly (2); The control circuit (61) is used for outputting a shutdown signal for controlling the power assembly (2) to shut down when the switching circuit (63) is turned on, and outputting a startup signal for controlling the power assembly (2) to start up when the switching circuit (63) is turned off.

2. The drive circuit (6) according to claim 1, characterized in that The control circuit (61) further comprises a reminding circuit (64), the reminding circuit (64) is connected with the switching circuit (63), and is used for issuing an alarm when the switching circuit (63) is turned on.

3. The drive circuit (6) according to claim 2, characterized in that The reminding circuit (64) comprises a delay sub-circuit (641) and an alarm device (642), the alarm device (642) is connected with the switching circuit (63) through the delay sub-circuit (641), the delay sub-circuit (641) is used for being turned on for a specified time length when the switching circuit (63) is turned on, and the alarm device (642) is used for issuing an alarm when the delay sub-circuit (641) is turned on.

4. The drive circuit (6) according to claim 3, characterized in that The delay sub-circuit (641) comprises a switching transistor (M1) and a first capacitor (C1), a first electrode of the switching transistor (M1) is connected with the switching circuit (63), a second electrode is connected with the alarm device (642), and a gate electrode is connected with the first capacitor (C1); the gate electrode and the first electrode of the switching transistor (M1) are connected.

5. The drive circuit (6) according to claim 4, characterized in that The delay sub-circuit (641) further comprises a second capacitor (C2), the second capacitor (C2) is connected with the first capacitor (C1) in parallel, and a capacitance value of the second capacitor (C2) is different from that of the first capacitor (C1).

6. The drive circuit (6) according to claim 3, characterized in that The alarm device (642) comprises a buzzer.

7. The drive circuit (6) according to claim 1, characterized in that The driving circuit (6) further comprises a first voltage dividing circuit (65), the switching circuit (63) is connected with the control circuit (61) through the first voltage dividing circuit (65).

8. The drive circuit (6) according to claim 3, characterized in that The switching circuit (63) is connected with the control circuit (61) through the delay sub-circuit (641), and the control circuit (61) is used for outputting a shutdown signal for controlling the power assembly (2) to shut down when the delay sub-circuit (641) is turned on.

9. The drive circuit (6) according to claim 8, characterized in that The driving circuit (6) further comprises a second voltage dividing circuit (66), the delay sub-circuit (641) is connected with the control circuit (61) through the second voltage dividing circuit (66).

10. A fascia gun, characterized in that, The massage head (1), the power assembly (2) and the driving circuit (6) according to any one of claims 1-9 are connected or separated, and the power assembly (2) is used to drive the massage head (1) to vibrate when connected with the massage head (1).

11. The fascia gun of claim 10, wherein, The massage head (1) is provided with a first connector (3), and the power assembly (2) is provided with a second connector (4); the switch circuit (63) is arranged on the second connector (4); when the first connector (3) and the second connector (4) are connected, the massage head (1) and the power assembly (2) are connected, and the switch circuit (63) is turned off; when the first connector (3) and the second connector (4) are separated, the massage head (1) and the power assembly (2) are separated, and the switch circuit (63) is turned on.

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