CN219868497U

CN219868497U - Human body guiding ventilation gun and air gun assembly

Info

Publication number: CN219868497U
Application number: CN202222714685.9U
Authority: CN
Inventors: 陈悦清; 邵国光; 王梓; 江滔
Original assignee: Umeox Innovations Co ltd
Current assignee: Umeox Innovations Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-10-20
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a human body guiding ventilation gun and an air gun assembly, wherein the human body guiding ventilation gun comprises: the first power supply voltage input end is connected with the hot air component and used for outputting the accessed first power supply voltage to the hot air component so as to enable the heating component to work in an electrified mode; the first power-on control circuit is arranged between the first power supply voltage input end and the heating component; the human body induction circuit is used for detecting characteristic signals of human bodies and outputting corresponding human body induction signals; the input end of the power-on driving circuit is connected with the output end of the human body sensing circuit, and the control end of the power-on driving circuit is connected with the controlled end of the first power-on control circuit; the power-on driving circuit is used for controlling the first power-on control circuit to disconnect the first power supply voltage input end from the hot air component when the user is determined not to hold the human body ventilation gun according to the human body induction signal, so that the hot air component is powered off to stop working. The scheme of the utility model can improve the use safety of the air gun.

Description

Human body guiding ventilation gun and air gun assembly

Technical Field

The utility model relates to the technical field of heating air guns, in particular to a human body guiding ventilation gun and an air gun assembly.

Background

With the continuous development of society, people's consumption level is increasingly improved, and the demand for electronic products is continuously increased, however, when electronic products are produced, maintained or tested, the air gun is an indispensable welding auxiliary tool. Currently, air guns are typically of an auto-induction design, i.e., automatically cease operation when a signal source, such as a magnet, is sensed on the air gun mount.

However, as the service time increases, the signal intensity of the signal source decreases, so that high-temperature hot air may still be blown out when the air gun is erected on the bracket, thereby having potential safety hazards.

Disclosure of Invention

The utility model mainly aims to provide a human body guiding ventilation gun, which aims to solve the problem of lower safety of an automatic induction type design wind gun.

In order to achieve the above object, the human body guiding ventilation gun provided by the utility model is provided with a hot air component, the hot air component comprises a fan and a heating component, and the human body guiding ventilation gun comprises:

the first power supply voltage input end is connected with the hot air component and used for outputting the accessed first power supply voltage to the hot air component so as to enable the heating component to work in a power-on mode;

the first power-on control circuit is arranged between the first power supply voltage input end and the heating component;

the human body induction circuit is used for detecting characteristic signals of a human body and outputting corresponding human body induction signals; the method comprises the steps of,

the input end of the power-on driving circuit is connected with the output end of the human body induction circuit, and the control end of the power-on driving circuit is connected with the controlled end of the first power-on control circuit;

the power-on driving circuit is used for controlling the first power-on control circuit to disconnect the first power supply voltage input end from the hot air component when the user is determined not to hold the human body ventilation gun according to the human body induction signal, so that the hot air component is powered down to stop working.

Optionally, the power-on driving circuit includes:

the second power supply voltage input end is used for accessing a second power supply voltage;

the first input end of the amplifying circuit is connected with the output end of the human body sensing circuit, and the second input end of the amplifying circuit is connected with the second power supply voltage input end;

and the first input end of the comparison circuit is connected with the output end of the amplifying circuit, the second input end of the comparison circuit is used for accessing reference voltage, and the output end of the comparison circuit is used for being connected with the controlled end of the first power-on control circuit.

Optionally, the amplifying circuit includes:

the non-inverting input end of the first amplifying branch is connected with the output end of the human body sensing circuit, and the inverting input end of the first amplifying branch is used for being connected with a preset voltage;

the non-inverting input end of the second amplifying branch is connected with the second power supply voltage input end, the inverting input end of the second amplifying branch is connected with the output end of the first amplifying branch, and the output end of the second amplifying branch is connected with the first input end of the comparison circuit.

Optionally, the characteristic signal is an infrared signal;

the human body sensing circuit includes:

the output end of the pyroelectric infrared sensor is connected with the input end of the power-on driving circuit, and the pyroelectric infrared sensor is used for detecting infrared signals sent by a human body and outputting corresponding human body induction signals to the power-on driving circuit.

Optionally, the human body guiding ventilation gun further comprises:

the air gun comprises an air gun shell, wherein a holding part is arranged on the air gun shell, and the pyroelectric infrared sensor is arranged on the holding part.

Optionally, the human body guiding ventilation gun further comprises:

the gear switching circuit is connected between the first power-on control circuit and the first power supply voltage input end;

the gear trigger circuit is used for outputting an automatic gear trigger signal or a manual gear trigger signal when triggered;

the first input end of the main controller is connected with the output end of the gear trigger circuit, and the first control end of the main controller is connected with the controlled end of the gear switching circuit;

the main controller is used for controlling the gear switching circuit to connect the first power supply voltage input end with the first power-on control circuit when receiving the automatic gear trigger signal; and when the manual gear trigger signal is received, controlling the gear switching circuit to disconnect the first power supply voltage input end from the first power-on control circuit.

Optionally, the gear switching circuit includes an input end, a first output end and a second output end, the input end of the gear switching circuit is connected with the first power supply voltage input end, and the first output end of the gear switching circuit is connected with the power-on driving circuit;

the human body guiding ventilation gun further comprises:

the second power-on control circuit is arranged between the second output end of the gear switching circuit and the heating component;

the switching trigger circuit is used for outputting a switching trigger signal or a switching trigger signal when triggered;

the second input end of the main controller is connected with the output end of the switching-on/off trigger circuit, and the second control end of the main controller is connected with the controlled end of the second power-on control circuit;

the main controller is also used for controlling the second power-on control circuit to connect the second output end of the gear switching circuit with the heating component when the starting trigger signal is received; and when the shutdown trigger signal is received, controlling the second power-on control circuit to disconnect the second output end of the gear switching circuit from the heating component.

Optionally, the human body guiding ventilation gun further comprises:

the gear prompt assembly is connected with the third control end of the main controller, and the main controller is further used for controlling the gear prompt assembly to send out corresponding prompt signals according to the received automatic gear trigger signals or manual gear trigger signals.

The present utility model also proposes a wind gun assembly comprising:

a wind gun bracket; the method comprises the steps of,

the human body guiding ventilation gun is characterized in that the air gun support is used for erecting the human body guiding ventilation gun.

According to the technical scheme, the first power-on control circuit, the human body induction circuit and the power-on driving circuit are adopted, and when a user does not hold the human body ventilation gun, the power-on driving circuit is controlled to disconnect the first power-on voltage input end from the hot air component so that the hot air component is powered off to stop working through the human body induction signal output by the power-on driving circuit after the human body induction circuit detects the characteristic signal of the human body. The human body guiding ventilation gun controls the power-on or power-off of the hot air component by sensing the characteristic signals sent by the human body, and the characteristic signals of the human body cannot be weakened along with the increase of the using time, so that the hot air component can still be accurately controlled to power down when a user is determined not to hold the human body guiding ventilation gun after the human body guiding ventilation gun is used for a long time, the problem that the safety of the existing automatic induction type wind gun is lower after an operator leaves is solved, and the electric energy is saved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic block diagram of an embodiment of a human body ventilation gun according to the present utility model;

fig. 2 is a schematic block diagram of another embodiment of the human body ventilation gun of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a master guiding ventilation gun which is applied to welding of electronic products.

The current automatic induction type design of the air gun is that a signal source is arranged on an air gun support, and a corresponding induction circuit is arranged on the air gun, so that the air gun can control a heating component and a fan to stop working when sensing signals such as an infrared signal, an electromagnetic wave signal, a magnetic field signal and the like sent by the signal source on the air gun support, and the air gun can automatically stop blowing hot air when being erected on the air gun support. However, as the use duration increases, the signal strength sent by the signal source gradually weakens, so that when the air gun is erected on the air gun support, the signal sent by the signal source cannot be effectively sensed, and high-temperature hot air is continuously blown out, and at the moment, operators often recognize that the air gun stops working and leaves the operation desk due to the use habit formed before, and the high-temperature hot air is easy to cause fire hazard, potential safety hazard and electric energy waste.

In view of the above problems, referring to fig. 1 to 2, in one embodiment, the human body ventilation gun includes:

the first power supply voltage input end 10 is connected with the hot air assembly 00 and is used for outputting the connected first power supply voltage to the hot air assembly 00 so as to enable the heating assembly to work in a power-on mode;

the first power-on control circuit 20 is arranged between the first power supply voltage input end 10 and the heating component;

the human body sensing circuit 30, the human body sensing circuit 30 is used for detecting the characteristic signal of the human body and outputting the corresponding human body sensing signal; the method comprises the steps of,

the input end of the power-on driving circuit 40 is connected with the output end of the human body sensing circuit 30, and the control end of the power-on driving circuit 40 is connected with the controlled end of the first power-on control circuit 20;

the power-on driving circuit 40 is configured to control the first power-on control circuit 20 to disconnect the first power supply voltage input terminal 10 from the hot air assembly 00 when it is determined that the user does not hold the human body ventilation gun according to the human body induction signal, so that the hot air assembly 00 is powered down to stop working.

In this embodiment, the first power supply voltage input end 10 may be connected to an external power source or a utility power grid through a power supply interface of the human body ventilation gun, so as to access a voltage output by the external power source or the utility power grid and serve as the first power supply voltage; or the power supply voltage can be connected with the output end of the power supply management circuit in the human body ventilation gun so as to be used as the first power supply voltage after being connected with the power supply voltage of the power supply management circuit for power conversion. The first power supply voltage input end 10 can be connected with the fan through a wind speed control circuit, so that the wind speed control circuit can output the first power supply voltage to the fan after power supply conversion under the control of the main controller 70, and the fan is driven to rotate at a corresponding rotating speed; and the first power supply voltage input end 10 can be further connected with the heating component through a heating control circuit, so that the heating control circuit can output the first power supply voltage to the heating component after power supply conversion under the control of the main controller 70, and the heating component can be driven to generate corresponding heat. The heating component can be arranged on the air outlet side of the fan so as to heat the air sent out by the fan when the fan rotates, thereby realizing the hot air function of the human body ventilation gun.

The first power-on control circuit 20 may be implemented by a switching device, which may be one or more of a triode, a thyristor, an optocoupler, a relay, and a thyristor.

The human body sensing circuit 30 may be an infrared pyroelectric sensor, a temperature sensor, etc. The human body sensing circuit 30 may detect characteristic signals such as infrared rays and temperature of a human body and output human body sensing signals corresponding to the electric signals.

The power-on driving circuit 40 can be realized by adopting discrete devices such as a switching device, an operational amplifier, a resistor, a capacitor and the like; alternatively, it may be implemented using application specific integrated circuits and their peripheral circuits. The power-on driving circuit 40 can determine that a user holds the human body ventilation gun when receiving the human body induction signal, and output a first control signal to the controlled end of the first power-on control circuit 20, so that each switch device in the first power-on control circuit 20 can be correspondingly turned on or off, and each switch device which can be turned on is connected with the first power supply voltage input end 10 and the hot air assembly 00, thereby realizing the power-on operation of the hot air assembly 00. The power-on driving circuit 40 may further determine that the user does not hold the human body ventilation gun when the human body induction signal is not received, and output a second control signal to the controlled end of the first power-on control circuit 20, so that each switching device in the first power-on control circuit 20 may be correspondingly turned on or turned off, and each switching device that may be turned off may disconnect the connection between the first power supply voltage input end 10 and the hot air assembly 00, thereby implementing the power-off stop of the hot air assembly 00. One of the first control signal and the second control signal is a high level signal, and the other is a low level signal.

Therefore, the human body ventilation guiding gun can control the power-on or power-off of the hot air assembly 00 by sensing the characteristic signals sent by the human body, and the characteristic signals of the human body cannot be weakened along with the increase of the using time, so that after the human body ventilation guiding gun is used for a long time, the hot air assembly 00 can still be precisely controlled to power-off when the user is determined not to hold the human body ventilation guiding gun, the situation that the hot air is continuously blown out after an operator leaves the air gun is avoided, the problem that the safety of the existing automatic induction type air gun is lower is solved, and the electric energy is saved.

Referring to fig. 1 to 2, in an embodiment, the power-on driving circuit 40 includes:

the first input end of the amplifying circuit is connected with the output end of the human body sensing circuit 30, and the second input end of the amplifying circuit is connected with the second power supply voltage input end;

and a first input end of the comparison circuit is connected with the output end of the amplifying circuit, a second input end of the comparison circuit is used for accessing reference voltage, and an output end of the comparison circuit is used for being connected with the controlled end of the first power-on control circuit 20.

The second power supply voltage input end can be connected with the output end of the power management circuit in the human body ventilation gun so as to be connected with another power supply voltage which is output after the power conversion of the power management circuit and is used as the second power supply voltage. The amplifying circuit can amplify the received human body induction signal by using the accessed second power supply voltage, and can output the amplified human body induction signal to the comparing circuit, so that the comparing circuit can compare the amplified human body induction signal with the reference voltage, and the corresponding level signal is output as the first control signal and the second control signal according to the comparison result. The method comprises the following steps: when the comparison result is that the amplified human body induction signal is larger than the reference voltage, a first control signal of a high-level signal can be output; when the comparison result is that the amplified human body induction signal is smaller than the reference voltage, a second control signal of a low-level signal can be output; wherein, the reference voltage can be 2V.

By the arrangement, when the power-on driving circuit 40 receives the human body induction signal with a lower amplitude, the first power-on control circuit 20 is still controlled to provide the power supply voltage for the normal operation of the hot air component 00, so that the detection performance of the human body induction circuit 30 is prevented from being reduced along with the long use time, the condition that the amplitude of the human body induction signal is lower is caused, and the service life of the first power-on control circuit 20 is prolonged.

Optionally, the amplifying circuit includes:

the non-inverting input end of the first amplifying branch is connected with the output end of the human body sensing circuit 30, and the inverting input end of the first amplifying branch is used for accessing a preset voltage;

In this embodiment, the first amplifying branch and the second amplifying branch may be implemented by using an operational amplifier. The preset voltage can be ground voltage or negative voltage, so that the first amplifying branch can utilize the preset circuit to amplify the received human body induction signal for the first stage and output the amplified human body induction signal to the second amplifying branch; the second amplifying branch can utilize the accessed second power supply voltage to amplify the human body induction signal after the first-stage amplification, and then output the human body induction signal to the comparison circuit, so that the two-stage amplification of the human body induction signal is realized. By the arrangement, the amplitude of the human body induction signal can be effectively improved, and the service life of the power-on control circuit can be further prolonged.

In an alternative embodiment, the power-on driving circuit 40 may be implemented by using an HT7610B integrated circuit and its peripheral circuits, and the first amplifying branch, the second amplifying branch and the comparing circuit may be implemented by using two operational amplifiers and comparators integrated therein, respectively, so as to reduce the PCB area occupied by the power-on driving circuit 40. Specifically, the HT7610B integrated circuit may have a TRIAC terminal, a VDD terminal, a VEE terminal, an OP1P terminal, an OP1N terminal, an OP1O terminal, an OP2P terminal, an OP2N terminal, and an OP2O terminal. Wherein the TRIAC terminal may be an output terminal of the internal comparator; the VDD terminal is available to implement a second supply voltage input terminal; the VEE terminal can be used for outputting preset voltage; the OP1P end, the OP1N end and the OP1O end can be used for respectively realizing the in-phase input end, the anti-phase input end and the output end of the first amplifying branch; the OP2P end, the OP2N end, and the OP2O end may be used to implement the in-phase input end, the anti-phase input end, and the output end of the second amplifying branch, respectively.

Referring to fig. 1-2, in one embodiment, the characteristic signal is an infrared signal;

the human body sensing circuit 30 includes:

the output end of the pyroelectric infrared sensor is connected with the input end of the power-on driving circuit 40, and the pyroelectric infrared sensor is used for detecting infrared signals sent by a human body and outputting corresponding human body induction signals to the power-on driving circuit 40.

In practical applications, it is found that the infrared signal emitted by the human body is more responsive to the holding state of the operator than other human body characteristic signals such as body temperature, so that the human body sensing circuit 30 is realized by using the pyroelectric infrared sensor. The pyroelectric infrared sensor can be arranged close to the air gun shell so as to detect infrared rays emitted by hands when the hands hold the human body guiding and ventilating gun and can output human body induction signals with the amplitude corresponding to the intensity of the infrared rays. It will be appreciated that when the user is not holding the human ventilation gun, the signal amplitude of the human induction signal is much lower than the reference voltage and is close to zero, so the power-on driving circuit 40 can determine whether the user holds the human ventilation gun according to the human induction signal.

Optionally, the human body ventilation gun may further include: the air gun comprises an air gun shell, wherein a holding part is arranged on the air gun shell, and the pyroelectric infrared sensor is arranged on the holding part.

The holding part can be provided with grooves, and the structure of the holding part can be matched with the appearance of a hand in a holding state so as to be held by the hand. The holding part can be provided with an opening corresponding to the pyroelectric infrared sensor, and the infrared sensing surface of the pyroelectric infrared sensor can penetrate out through the opening and can be arranged flush with the surface of the holding part, so that infrared detection of hands is realized.

Referring to fig. 1 to 2, in an embodiment, the human body ventilation gun further includes:

the gear switching circuit 50 is connected between the first power-on control circuit 20 and the first power supply voltage input terminal 10;

a gear trigger circuit 60 for outputting an automatic gear trigger signal or a manual gear trigger signal when triggered;

a main controller 70, wherein a first input end of the main controller 70 is connected with an output end of the gear trigger circuit 60, and a first control end of the main controller 70 is connected with a controlled end of the gear switching circuit 50;

the main controller 70 is configured to control the gear switching circuit 50 to connect the first power supply voltage input terminal 10 with the first power-on control circuit 20 when receiving the automatic gear trigger signal; upon the receipt of the manual gear trigger signal, the gear switching circuit 50 is controlled to disconnect the first power supply voltage input terminal 10 from the first power-on control circuit 20.

Optionally, the gear switching circuit 50 includes an input end, a first output end and a second output end, the input end of the gear switching circuit 50 is connected with the first power supply voltage input end 10, and the first output end of the gear switching circuit 50 is connected with the power-on driving circuit 40;

in this embodiment, the gear switching circuit 50 may be implemented by a switching circuit constructed by a switching device or an alternative switch S; the gear trigger circuit 60 can be implemented by using a key circuit or a toggle switch or other physical switch keys; the main controller 70 may be implemented by MCU, DSP, FPGA or a dedicated main control chip. The gear trigger circuit 60 may be triggered by a user by pressing, pushing, toggling, etc. various keys, and may output an automatic gear trigger signal or a manual gear trigger signal to the main controller 70 after being triggered.

The human body guiding ventilation gun further comprises:

a second power-on control circuit 80, which is arranged between the second output end of the gear switching circuit 50 and the heating component;

the on-off trigger circuit 90 is configured to output an on trigger signal or an off trigger signal when triggered;

a second input end of the main controller 70 is connected with an output end of the on-off trigger circuit 90, and a second control end of the main controller 70 is connected with a controlled end of the second power-on control circuit 80;

the main controller 70 is further configured to control the second power-on control circuit 80 to connect the second output end of the gear switching circuit 50 with the heating component when the power-on trigger signal is received; when the shutdown trigger signal is received, the second power-on control circuit 80 is controlled to disconnect the second output end of the gear switching circuit 50 from the heating component.

In this embodiment, the implementation manners of the second power-on control circuit 80 and the power-on/off trigger circuit 90 may refer to the first power-on control circuit 20 and the gear trigger circuit 60, respectively, and will not be described herein. The on-off trigger circuit 90 may be triggered by a user by pressing, pushing, toggling, etc. various key manners, and may output an on-trigger signal or an off-trigger signal to the main controller 70 after being triggered.

The main controller 70 may control each switching device in the gear switching circuit 50 to be correspondingly turned on or off when determining that the automatic gear trigger signal is received, so that each switching device turned on may connect the input terminal with the first output terminal, and each switching device turned off may disconnect the input terminal from the second output terminal, thereby connecting the first power supply voltage input terminal 10 with the first power-on control circuit 20, and further realizing that the human ventilation gun is switched to be in an automatic power-on/power-off state controlled according to the human induction signal. The main controller 70 may control each switching device in the gear switching circuit 50 to be correspondingly turned on or off when it is determined that the manual gear trigger signal is received, so that each switching device turned off may disconnect the connection between the input terminal and the first output terminal, and each switching device turned on may connect the input terminal and the second output terminal, thereby connecting the first power supply voltage input terminal 10 with the heating component through the second power-on control circuit 80, and further realizing switching the human body ventilation gun to be in a manual power-on/power-off state controlled according to the power-on/power-off trigger signal.

When the human body ventilation gun is in a manual power-on/power-off state, the main controller 70 can control each switching device in the second power-on control circuit 80 to be correspondingly turned on or off after receiving the power-on touch signal, and can enable each switching device which is turned on to be connected with the first power supply voltage input end 10 and the hot air assembly 00, so that the manual power-on operation of the hot air assembly 00 is realized. The main controller 70 may also control each switching device in the second power-on control circuit 80 to be correspondingly turned on or off after receiving the power-off trigger signal, and may cause each switching device turned off to disconnect the connection between the first power supply voltage input terminal 10 and the hot air assembly 00, so as to realize manual power-off stop of the hot air assembly 00.

Optionally, the human body guiding ventilation gun further comprises:

the gear prompting component is connected with a third control end of the main controller 70, and the main controller 70 is further used for controlling the gear prompting component to send out corresponding prompting signals according to the received automatic gear triggering signals or manual gear triggering signals.

In this embodiment, the gear prompting component may be implemented by using a speaker, a prompting light, a buzzer, and other devices. The master controller 70 may control the gear reminder component to send out, for example, upon receipt of an automatic gear trigger signal: a first preset prompting signal such as a first preset prompting sound, a first preset color light or a first preset frequency vibration signal so as to prompt a user that the human body ventilation gun is in an automatic power-on/power-off state at present; upon receipt of the manual gear trigger signal, the control gear prompt component issues, for example: the second preset prompting sound, the lamplight of the second preset color or the prompting signals such as vibration of the second preset frequency are used for prompting the user that the human body ventilation gun is in a manual power-on/power-off state.

The utility model also provides an air gun assembly, which comprises an air gun bracket, and the air gun assembly adopts all the technical schemes of all the embodiments, so that the air gun assembly at least has all the beneficial effects brought by all the embodiments, and the detailed description is omitted. Wherein, the air gun bracket can be provided with an erection groove for the human body to conduct the air gun to erect and place.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The utility model provides a human ventilation rifle that leads, the human ventilation rifle that leads is equipped with hot air module, hot air module includes fan and heating element, its characterized in that, the human ventilation rifle that leads includes:

2. The human body ventilation gun of claim 1, wherein the power-on drive circuit comprises:

3. The body guidance ventilation gun of claim 2, wherein the amplification circuit comprises:

4. The human body ventilation gun of claim 1, wherein the characteristic signal is an infrared signal;

the human body sensing circuit includes:

5. The body guidance ventilation gun of claim 4, further comprising:

6. The body guidance ventilation gun of claim 1, further comprising:

7. The human body ventilation gun of claim 6, wherein the gear switching circuit comprises an input end, a first output end and a second output end, wherein the input end of the gear switching circuit is connected with the first power supply voltage input end, and the first output end of the gear switching circuit is connected with the power-on driving circuit;

the human body guiding ventilation gun further comprises:

8. The body guidance ventilation gun of claim 6, further comprising:

9. A wind gun assembly, the wind gun assembly comprising:

a wind gun bracket; the method comprises the steps of,

a human-body guided ventilation gun as claimed in any one of claims 1 to 8, said wind gun support being for mounting said human-body guided ventilation gun.