TWM642047U - Electrostatic spray apparatus - Google Patents

Abstract

An electrostatic spraying device includes an electrostatic sprayer and a power supply driving mechanism. The electrostatic sprayer includes a nozzle module, a plurality of barriers protruding from the outer surface of the nozzle module, an atomization module and an electrostatic cover module installed on the nozzle module. The electrostatic cover module can be driven by electricity, so that the water mist sprayed by the atomization module is charged. The power supply drive mechanism can boost the DC power supply into the drive power, and transmit the drive power to the electrostatic cover module. By arranging the structural design of these barriers on the nozzle module, the overall electrical impedance of the electrostatic sprayer can be increased, the creepage distance can be increased, and the problem of leakage current between the electrostatic cover module and the nozzle module can be improved. The electrostatic spray device has better electrical insulation and more stable electrostatic spray effect.

Description

Electrostatic spray device

The present invention relates to a spraying device, in particular to an electrostatic spraying device.

Electrostatic spraying is a spray technology that can effectively improve the adhesion effect of pesticide spraying. The current electrostatic spraying device is mainly to install an electrostatic cover on the spray head for atomizing water liquid into water mist and spraying it out. The electrostatic cover can be energized Generates an electrostatic field that drives the water mist negatively charged. The current design of the electrostatic spraying device uses a dry battery as the driving power, and the battery power is boosted to a DC driving power of 4500V-7500V through a booster circuit, so as to drive the metal ring in the electrostatic cover to generate the electrostatic field.

However, when this type of electrostatic spray device is used, if the driving power generated by the boost is to be stably maintained at a predetermined voltage value, there must be sufficient insulation resistance between the electrostatic cover and the spray head. If the insulation resistance of the spray head is insufficient In the high-humidity environment during spraying, leakage current may occur between the electrostatic cover and the spray head, which will cause a voltage drop in the driving power of the electrostatic cover and affect the effect of electrostatic spraying.

Therefore, it is an object of the present invention to provide an electrostatic spraying device which can improve at least one of the disadvantages of the prior art.

Therefore, the novel electrostatic spraying device is suitable for atomizing and spraying water liquid and electrically connecting a DC power supply. The electrostatic spraying device includes an electrostatic sprayer and a power supply driving mechanism electrically connected to each other.

The electrostatic sprayer includes a spray head module for conducting the insulating material of the water liquid, a plurality of barriers of insulating material protruding from the outer surface of the spray head module at intervals, and an atomizer installed on the spray head module. module, and an electrostatic cover module installed on the nozzle module. The atomization module can make the water liquid from the nozzle module spray forward to become water mist, and the electrostatic cover module can be driven by a driving power to charge the water mist.

The power supply driving mechanism includes a power supply module for electrically connecting the DC power supply, and a power line electrically connected between the power supply module and the electrostatic cover module. The power supply module can boost the power of the DC power supply into the driving power of a predetermined voltage value, and transmit the driving power to the electrostatic cover module through the power line.

The effect of this new model is: through the structural design of additionally setting the barriers on the nozzle module, it can be used to improve the overall electrical impedance of the electrostatic sprayer, increase the creepage distance, and also improve the connection between the electrostatic cover module and the nozzle. The problem of leakage current between modules makes the whole electrostatic sprayer have better electrical insulation and can produce a more stable electrostatic spray effect.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to Fig. 1, a first embodiment of the novel electrostatic spraying device 100 is suitable for being connected and connected to an infusion line 901 for outputting water to be treated, and powered by a DC power supply 900 or a plurality of dry batteries (Fig. not shown) as the driving power. The electrostatic spraying device 100 can be used to atomize and spray the water liquid forward, and make the sprayed water mist negatively charged. The infusion pipeline 901 may be a rod-shaped object capable of being held or held, or a pipeline structure installed on an agricultural machine. The DC power supply 900 can be a cigarette lighter power supply on a vehicle, or a DC power supply device on an agricultural machine. The dry batteries are for example but not limited to commercially available carbon-zinc batteries, lithium batteries and the like. The aqueous solution is, for example, but not limited to liquid agricultural chemicals such as herbicides and insecticides.

Referring to Figures 1, 2, and 3, the electrostatic spray device 100 includes an electrostatic sprayer 2 for communicating with the infusion pipeline 901, and an electrostatic spray device 2 installed on the electrostatic spray device 100 for electrically connecting the DC power supply 900 or supplying These dry batteries are installed to power the drive mechanism 8 .

The electrostatic sprayer 2 includes a nozzle module 4 of electrical insulating material, an atomization module 5 installed in the front end of the nozzle module 4, and an electrostatic cover module 6 that is installed outside the nozzle module 4 , and a plurality of barriers 7 of electrical insulating material that are sleeved outside the shower head module 4 at intervals. The spray head module 4 includes a spray head body 41 that extends axially forward and backward and is connected to the infusion pipeline 901 with its rear end, and a ring-shaped tubular body that is detachably screwed and fixed at the front end of the spray head body 41 . The locking ring cover 42.

The atomization module 5 is installed in the front end of the spray head body 41 with an airtight plug, and is fixed on the spray head body 41 by the locking ring cover 42 in a backward position. The atomization module 5 includes a disc-shaped rectifier 51, an annular gasket 52, and a disc-shaped nozzle 53 stacked in sequence, and the rectifier 51, the gasket 52 and the The spray fins 53 cooperate to define a mixing space 50 .

The rectifying piece 51 has two drainage holes 510 extending forward from the rear side thereof and obliquely extending clockwise to the front side thereof. The drainage holes 510 communicate with the nozzle body 41 and the mixed flow space 50 , and can be used to guide the water from the nozzle body 41 forward into the mixed flow space 50 , so that the water injected into the mixed flow space 50 flows clockwise. swirling flow. However, in practice, in another implementation form of the first embodiment, the drainage holes 510 can also be designed to extend obliquely in the counterclockwise direction.

The central portion of the spray sheet 53 has a spray hole 530 penetrating front and rear and communicating the mixed flow space 50 with the outside. The nozzle hole 530 has a conical section 531 that opens backward and communicates with the mixed-flow space 50 and whose diameter gradually decreases forward, and a discharge section 532 that extends forward from the front end of the conical section 531 and communicates with the outside. Through the structural design of the spray hole 530 of the spray sheet 53, the water liquid passing forward can be atomized and sprayed to form a water mist.

The electrostatic cover module 6 includes an electrostatic cover ring body 61 sleeved and fixed outside the nozzle body 41, a metal ring 62 sleeved outside the front end of the electrostatic cover ring body 61, a detachable screw lock fixed From the front end of the static cover ring body 61, the metal ring 62 is limited to the locking ring 63 on the static cover ring body 61, and a power input connector 64 is installed and fixed on the outer peripheral side of the static cover ring body 61 and A power output connector 65. In this embodiment, the electrostatic cover ring body 61 is detachably socketed and fixed outside the shower head body 41 through a rotating clamping method, but during implementation, in other embodiments of the present invention, the electrostatic The shroud ring body 61 and the shower head body 41 can also be assembled in other detachable ways, or designed to be non-detachable.

The electrostatic cover ring body 61 is located in front of the barriers 7, and has a collar portion 611 that is sleeved and fixed on the outer peripheral surface of the shower head body 41, and an outer expanding ring portion radially expanding from the collar portion 611. 612, a ring-shaped surrounding part 613 extending forward from the outer peripheral edge of the outer expansion ring part 612 and crossing the front end of the nozzle module 4, and a assembling ring part arranged around the outer peripheral side of the surrounding part 613 at radial intervals 614. The inner diameter of the surrounding part 613 is larger than the outer diameter of the nozzle module 4, and cooperates with the outer expansion ring part 612 to define an opening facing forward, and will make the sprayed water mist of the atomizing module 5 go forward. The induction space 60 passed before. The static shield ring body 61 is also pierced with a plurality of guide holes 615 distributed around its axis at intervals and communicating with the outside world and the sensing space 60 . Each of the diversion holes 615 axially extends through the outer flared portion 612 front and rear, and radially passes through the rear end section of the surrounding portion 613 .

The metal ring 62 is sheathed outside the front end section of the surrounding portion 613, and can be electrically connected and contacted by the power cord 82 inserted into the power input connector 64, and a driving power is conducted by the power cord 82. Drive, and then generate an electrostatic field in the sensing space 60 that can induce the passing water mist to be charged. The locking ring 63 is screw-locked on the joint ring part 614 , and the metal ring 62 is limited on the surrounding part 613 backward.

The power input connector 64 can be inserted into one end of the power cord 82 so that one end of the power cord 82 is electrically connected to the metal ring 62 . The power output connector 65 can be used for power supply connection to another electrostatic sprayer 2 (shown in FIG. 9 ) with a power transmission line 902 (shown in FIG. 9 ) plugged in and positioned so that the power transmission line 902 is electrically connected to the metal ring 62 , The power transmission line 902 can output the driving power to the other electrostatic sprayer 2 .

The barriers 7 are radially protruding from the outer peripheral surface of the rear end section of the shower head body 41 in a spaced arrangement front and back, and the outer diameters of the barriers 7 gradually expand from front to back. In the first embodiment, the barriers 7 are integrally connected to the nozzle body, but the implementation is not limited thereto.

Referring to FIGS. 1 , 3 and 4 , the power supply driving mechanism 8 includes a power supply module 81 and a power line 82 electrically connected between the power supply module 81 and the electrostatic cover module 6 . The power supply module 81 includes a battery holder 811 for the dry batteries to be installed in series, a voltage protection circuit 812 for electrically connecting the DC power supply 900, and a voltage protection circuit 812 for electrically connecting the battery holder 811 and the voltage protection circuit 812. A boost processing circuit 813 , and the boost processing circuit 813 is electrically connected to the other end of the power line 82 .

The voltage protection circuit 812 can be used to detect the voltage of the DC power supply 900, and when it is judged that the voltage of the DC power supply 900 exceeds a predetermined voltage range, the DC power supply 900 and the boost processing circuit 813 will not be electrically connected and conducted, and will When it is judged that the voltage of the DC power supply 900 is within the predetermined voltage range, the DC power supply 900 and the boost processing circuit 813 are electrically connected and conducted. The predetermined voltage range is, for example but not limited to, between 10.8 V and 30 V, so the aforementioned exceeding the predetermined voltage range refers to the situation of being less than 10.8 V or greater than 30 V.

The boost processing circuit 813 can be used to boost the battery power output by the battery holder 811 or the power of the DC power supply 900 to generate the driving power with a predetermined voltage value. In the first embodiment, the boost processing circuit 813 is operable to switch to generate the driving power in the form of 5800 V and 7800 V direct current, but the implementation is not limited thereto. Since the boost processing circuit 813 that can be used for power boost processing is in the prior art and there are many types, it will not be described in detail.

The power cord 82 is electrically connected to the power input connector 64 inserted in the electrostatic cover module 6 with one end thereof, and is electrically connected to the boost processing circuit 813 of the power supply module 81 with its other end, so that The driving power is transmitted to the electrostatic cover module 6 .

When the novel electrostatic spray device 100 is in use, the water mist produced by the atomization of the electrostatic sprayer 2 will spray forward through the sensing space 60 and spray to the outside world. The electrostatic field generated by the module 6 in the sensing space 60 is induced to be negatively charged, thereby generating negatively charged water mist.

Through the structural design of the barriers 7 connected to the nozzle module 4, it can be used to increase the overall electrical impedance of the electrostatic sprayer 2, increase the creepage distance, and elongate the nozzle hole 530 of the atomization module 5 The distance between the infusion pipeline 901 can not only make the electrostatic spray device 100 have better electrical insulation and improve the safety of use, but also effectively improve the electrostatic cover module 6 and the electrostatic sprayer 2. The problem of leakage current between them can effectively improve the problem of the driving power voltage drop caused by the aforementioned leakage current, so that the electrostatic cover module 6 can generate a stable electrostatic field in the induction space 60, so that the electrostatic spray device 100 can Maintain a certain electrostatic spray effect during use.

In addition, during the process of the water mist spraying out of the sensing space 60 forward, the forward spraying action of the water mist will generate a draft in the sensing space 60 that acts on the guide holes 615 from back to front. Suction force, the suction force can suck the outside air through the guide holes 615 and enter the sensing space 60 . Since the flow guide holes 615 are distributed around the front end of the nozzle module 4, the airflow entering the sensing space 60 from the flow guide holes 615 will cooperate with the sensing space 60 to generate a water mist for pushing forward. The direct current cyclone can greatly increase the spraying distance of water mist.

Furthermore, the voltage protection circuit 812 of the power supply module 81 can be used to electrically connect the DC power supply 900, so that the novel electrostatic spraying device 100 can be electrically connected to the DC power supply equipment on the agricultural machinery, which can greatly improve the convenience of use. .

In this embodiment, the barriers 7 are designed in the shape of a ring, but during implementation, in other embodiments of the present invention, the barriers 7 can also be designed in other shapes.

Referring to FIGS. 5 and 6 , a second embodiment of the new electrostatic spraying device 100 differs from the first embodiment in the structural design of the barriers 7 . For the convenience of description, only the differences between the embodiments will be described below.

In the second embodiment, the outer diameters of the barriers 7 are the same. Each of the barriers 7 includes a body part 71 that is radially outward relative to the outer peripheral surface of the shower head body 41 and arcs back to form an arc cover with an opening facing backward, and a plurality of radially spaced protrusions are provided on the body part 71. The circular protruding rib portion 72 on the inner surface of the curved arc facing backward. In the second embodiment, each barrier 7 is composed of two semi-annular pieces 73 facing each other, and these half-annular pieces 73 will be fixed on the outer peripheral surface of the nozzle body 41 by matching ring sleeves. When it is used, it can also be designed as a single ring-shaped member and integrally formed on the shower head body 41 .

Through the structural design of the barriers 7, the entire electrostatic sprayer 2 can maintain a certain electrical impedance while reducing the number of barriers 7.

Referring to FIGS. 7 and 8 , the difference between a third embodiment of the new electrostatic spray device 100 and the first embodiment lies in the structural design of the electrostatic cover module 6 .

In the third embodiment, the guide holes 615 of the electrostatic cover ring body 61 of the electrostatic cover module 6 are from the rear side of the collar part 611 to the front, and along the periphery of the collar part 611 It obliquely extends clockwise to the front side of the collar portion 611 . However, during implementation, in another embodiment of the present invention, it can also be changed to extend obliquely in the counterclockwise direction.

Through the inclined extension design of the diversion holes 615, the airflow sucked forward by the diversion holes 615 can form a vortex cyclone in the sensing space 60 that can make the water mist rotate and flow, which can also be used to improve the water mist. Spray distance forward.

Referring to Figures 9, 10, and 11, the difference between a fourth embodiment of the new electrostatic spray device 100 and the first embodiment lies in: the assembly structure design of the spray head body 41 and the electrostatic cover ring body 61, and the electrostatic The sprayer 2 also includes a positioning clip 3 .

The spray head body 41 has a tube body 411 extending forward and backward, and two annular spacer rings protruding radially from the outer peripheral surface of the tube body 411 and located at the rear side of the locking ring cover 42 413. The tube body portion 411 cooperates with the limiting ring portions 413 to define an annular clamping space 410 .

The tube body 411 is used for the installation of the atomization module 5 by its front end section, and is screwed and sleeved by the locking ring cover 42 to position the atomization module 5, and is connected to the group by its rear end section. It is connected to the infusion pipeline 901 , and its outer peripheral surface is concavely provided with a plurality of positioning slots 412 arranged and distributed in the locking space 410 along its peripheral edge. The outer peripheral surface of the limiting ring portion 413 adjacent to the locking ring cover 42 is recessed with two radially spaced dismounting notches 414 communicating with the engaging space 410 front and rear.

The electrostatic cover ring body 61 also has two radially spaced protrusions 616 protruding from the inner peripheral surface of the collar portion 611, and the collar portion 611 is radially pierced with two radially spaced protrusions 616 respectively Alignment holes 617 between opposite sides of the protrusions 616 .

When the electrostatic cover ring body 61 is assembled with the shower head body 41, the protrusions 616 of the electrostatic cover ring body 61 are aligned backwards with the disassembly notches 414 of the shower head body 41. The electrostatic cover ring body 61 is sleeved on the outside of the shower head body 41 backwards, so that the protrusions 616 respectively pass through the disassembly gaps 414 and move into the clamping space 410 . Then, relatively rotate the electrostatic cover ring body 61 and the shower head body 41, so that the protrusions 616 are displaced in the clamping space 410 to stagger the dismounting gaps 414, and the electrostatic cover ring body 61 and the shower head are completed. Assembly of body 41. At this time, the electrostatic cover ring body 61 can be freely turned relative to the shower head body 41, so as to adjust the positions of the power input connector 64 and the power output connector 65 of the electrostatic cover module 6 relative to the shower head body 41, so as to facilitate the power supply. line 82 and/or the assembly of the power transmission line 902. In addition, the alignment holes 617 of the static shield ring body 61 are respectively inwardly corresponding to the two positioning slots 412 .

The positioning clip 3 is detachably clamped on the outside of the electrostatic cover ring body 61 , and buckled on the shower head body 41 so that the electrostatic cover ring body 61 and the shower head body 41 cannot rotate relative to each other. The positioning clip 3 has an operating portion 31, two elastic arm portions 32 that bend and extend downward from the operating portion 31 at left and right intervals and can elastically swing left and right, and two elastic arm portions 32 that protrude from the elastic arm portions 32 respectively. The buckle portion 33 on the left and right facing sides of the extension end.

When the positioning clip 3 is installed on the electrostatic cover ring body 61, the buckle parts 33 are respectively inserted into the alignment holes 617, and the left and right elastic arm parts 32 are elastically clamped against the electrostatic cover ring. 61 in vitro. The buckle parts 33 embedded in the alignment holes 617 are respectively embedded in the corresponding two positioning slots 412 of the nozzle body 41, so that the electrostatic cover ring body 61 and the nozzle body 41 rotate relatively position.

When the electrostatic cover module 6 is to be disassembled and the nozzle module 4 is disassembled forward, the positioning clip 3 is detached from the electrostatic cover ring body 61, and the protrusions 616 of the electrostatic cover ring body 61 Rotate to align with the disassembly notches 414 of the shower head body 41 , and then the electrostatic cover module 6 can be detached from the shower head module 4 forward.

With the structural design of the positioning clip 3, the electrostatic cover ring body 61 and the shower head body 41 can not be rotated relative to each other, and it is convenient for the user to connect the power input connector 64 of the electrostatic cover module 6 with the power supply. After the output connector 65 is rotated to a convenient position for the power line 82 and/or the power transmission line 902 to be assembled, the positioning clip 3 is used to position the electrostatic cover ring body 61 against rotation on the shower head body 41 .

Referring to Figures 1, 12, and 13, it must be noted that, in the above-mentioned embodiments, the new electrostatic spray device 100 only includes one electrostatic sprayer 2 connected to the infusion pipeline 901, but during implementation, In other embodiments of the present invention, the electrostatic spray device 100 can be designed to include a plurality of electrostatic sprayers 2, and a plurality of power transmission lines 902 are electrically connected to the power input connectors 64 of the electrostatic sprayers 2 and the Between the power output connector 65, these electrostatic sprayers 2 are all electrically connected to the power supply drive mechanism 8, so as to span a large spraying range.

To sum up, through the structural design of additionally setting the barriers 7 on the spray head module 4, it can be used to improve the overall electrical impedance of the electrostatic sprayer 2 and increase the creepage distance, in addition to enabling the electrostatic spray device 100 to use In addition to improving the safety of use, it can also effectively improve the leakage current problem between the electrostatic cover module 6 and the nozzle module 4, so that the entire electrostatic spray device 100 can produce more stable Electrostatic spray effect. In addition, through the design of the diversion holes 615 of the electrostatic cover module 6, the forward spraying distance of the water mist can be increased, thereby effectively increasing the spraying distance of agricultural chemicals. Furthermore, the DC power supply 900 provided by agricultural machinery and other equipment can be directly used as electric power through the power supply driving mechanism 8, which makes the use of the new electrostatic spraying device 100 more convenient. Therefore, the electrostatic spraying device 100 of the present invention is indeed a rather innovative, convenient and practical creation, and can indeed achieve the purpose of the present invention.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of implementation of the present invention with this. All simple equivalent changes and modifications made according to the patent scope of the present application and the content of the patent specification are still within the scope of the present invention. Within the scope covered by this patent.

100: Electrostatic spraying device 2: Electrostatic sprayer 3: positioning clip 31: Operation Department 32: spring arm 33: buckle part 4: Nozzle module 41: nozzle body 410: Clipping space 411: tube body 412: positioning card slot 413: limit ring part 414: disassembly gap 42: lock ring cover 5: Atomization module 50: mixed flow space 51: rectifier 510: drainage hole 52: Gasket 53: Spray film 530: spray hole 531: Tapered section 532: Ejection section 6: Electrostatic cover module 60:Sensing space 61: Static cover ring body 611: collar part 612: External expansion ring part 613: Around the Ministry 614: Assembling ring part 615: diversion hole 616: convex card part 617: Alignment hole 62: metal ring 63: locking ring 64: Power input connector 65: Power output connector 7: Obstacle 71: Body Department 72: convex rib 73: half-ring sheet 8: Power supply drive mechanism 81:Power supply module 811: battery holder 812: voltage protection circuit 813: Boost processing circuit 82: Power cord 900: DC power supply 901: Infusion pipeline 902: Power transmission line

Other features and functions of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is an incomplete perspective view, illustrating the situation when a first embodiment of the novel electrostatic spraying device is installed in an infusion pipeline and used; Fig. 2 is an incomplete three-dimensional exploded view illustrating the structure of an electrostatic sprayer of the first embodiment; Fig. 3 is a side sectional view illustrating the structure of the electrostatic sprayer of the first embodiment; Fig. 4 is a functional block diagram illustrating the functional architecture of the first embodiment; Fig. 5 is a three-dimensional exploded view, illustrating this electrostatic sprayer structure of a second embodiment of the novel electrostatic spraying device; Figure 6 is a side sectional view illustrating the structure of the electrostatic sprayer of the second embodiment; Fig. 7 is a perspective view illustrating the structure of the electrostatic sprayer of a third embodiment of the new electrostatic spraying device; Fig. 8 is a perspective view illustrating the structure of an electrostatic shield ring body of an electrostatic shield module of the third embodiment; Fig. 9 is a perspective view illustrating the structure of the electrostatic sprayer of a fourth embodiment of the new electrostatic spraying device; Fig. 10 is a three-dimensional exploded view illustrating the structure of the fourth embodiment; Fig. 11 is a rear sectional view illustrating the structure of the fourth embodiment; Fig. 12 is an incomplete perspective view, illustrating another kind of embodiment of the novel electrostatic spraying device; and FIG. 13 is a fragmentary exploded plan view illustrating the electrical connection of a plurality of electrostatic sprayers in another implementation aspect of the first embodiment.

2: Electrostatic sprayer

4: Nozzle module

41: nozzle body

42: lock ring cover

5: Atomization module

50: mixed flow space

51: rectifier

510: drainage hole

52: Gasket

53: Spray film

530: spray hole

531: Tapered section

532: Ejection section

6: Electrostatic cover module

60:Sensing space

61: Static cover ring body

611: collar part

612: External expansion ring part

613: Around the Ministry

614: Assembling ring part

615: diversion hole

62: metal ring

63: locking ring

64: Power input connector

65: Power output connector

7: Obstacle

Claims (19)

An electrostatic spraying device is suitable for atomizing and spraying water liquid and electrically connecting a DC power supply. The electrostatic spraying device includes: An electrostatic sprayer, including a spray head module for conducting the insulating material of the water liquid, a plurality of barriers of insulating material protruding from the outer surface of the spray head module at intervals, a mist installed on the spray head module An atomization module, and an electrostatic cover module installed on the nozzle module, the atomization module can make the water liquid from the nozzle module spray forward to become water mist, and the electrostatic cover module can be driven by a driving power driven to charge said mist; and A power supply drive mechanism, including a power supply module for electrically connecting the DC power supply, and a power line electrically connected between the power supply module and the electrostatic cover module, the power supply module can connect the DC power supply The driving power is boosted and processed into a predetermined voltage value, and the driving power is transmitted to the electrostatic cover module through the power line. The electrostatic spraying device according to claim 1, wherein the power supply module includes a voltage protection circuit for electrically connecting the DC power supply, and a boost processing circuit, the voltage protection circuit will detect and judge the When the voltage of the DC power supply is lower than 10.8V or higher than 30V, the DC power supply is not electrically connected to the boost processing circuit, and the boost processing circuit can boost the power of the DC power supply from the voltage protection circuit processed to generate the drive power. The electrostatic spray device as described in claim 2 is also suitable for use with a plurality of dry batteries, wherein the power supply module further includes a battery holder electrically connected to the boost processing circuit and used for electrically connecting and installing the dry batteries , the boost processing circuit can boost the output power of the battery holder to generate the driving power. The electrostatic spraying device as described in claim 1, 2 or 3, wherein the electrostatic cover module includes an electrostatic cover ring body sleeved and fixed outside the nozzle module, an electrostatic cover ring body sleeved on the electrostatic cover ring body and electrically The metal ring connected to the power supply module, and a locking ring that installs and fixes the metal ring on the electrostatic cover ring, and the electrostatic cover ring surrounds and defines a water mist sprayed by the atomization module. Before passing through the sensing space, the metal ring can be driven by the driving power, and an electrostatic field is generated in the sensing space to drive the passing water mist to be charged. The electrostatic spraying device according to claim 4, wherein the electrostatic cover ring body has a collar portion which is sleeved and fixed on the outer peripheral surface of the nozzle module, and an outer expansion ring protruding radially outward from the collar portion part, and a surrounding part that protrudes forward from the outer expanding ring part and crosses the front end of the nozzle module. The surrounding part cooperates with the outer expanding ring part to define the induction space, and the metal ring is sleeved on the surrounding part In addition to the front end section, the electrostatic cover ring body also has a plurality of diversion holes that pass through the sensing space and the outside world and are spaced around its axis. The electrostatic spraying device as claimed in item 5, wherein each of the diversion holes extends from rear to front along the axial direction of the outer expansion ring, passes through the outer expansion ring, communicates with the induction space forward, and radially Run through the rear end section of the surrounding portion. The electrostatic spraying device as claimed in item 5, wherein each of the diversion holes is forward from the rear side of the collar part and extends obliquely in a clockwise or counterclockwise direction to the front side of the collar part, And connect the sensing space forward. The electrostatic spray device as described in claim 4 is also suitable for electrically connecting another electrostatic sprayer through a power transmission line, wherein the electrostatic cover module also includes installations exposed outside the electrostatic cover ring, and are used for electrical connection A power input joint and a power output joint of the power line and the power transmission line are electrically connected to the power input joint and the power output joint by the metal ring. The electrostatic spraying device as described in claim 1 is suitable for being connected and connected to an infusion pipeline for outputting the water liquid, wherein the nozzle module includes an infusion pipeline for connecting and connecting to the The spray head body installed with the atomization module, and a locking ring cover installed at the front end of the spray head body to position the atomization module on the spray head body. The electrostatic spraying device according to claim 1, wherein the barriers are in the shape of ring sheets, and the outer diameters of the barriers gradually increase from front to back. The electrostatic spraying device as claimed in claim 1, wherein each barrier has a ring-shaped main body protruding radially outward relative to the nozzle module, and a plurality of protruding ones of the front and rear sides of the main body Convex ribs. The electrostatic spraying device as described in claim 11, wherein, the body part of each barrier is radially outward from the nozzle module and protrudes backward in an arc-shaped arc cover with the opening facing backward, and the convex ribs The first part protrudes backward from the rearward curved inner surface of the main body part. The electrostatic spraying device as claimed in claim 11 or 12, wherein each barrier has two half-ring sheets which are detachably assembled in opposite directions, and are fixed to the spray head module by matching rings. The electrostatic spraying device as claimed in claim 10, 11 or 12, wherein the barriers are integrated with the spray head module. The electrostatic spraying device according to claim 1, wherein the atomization module includes a spray piece, a gasket and a rectifying piece stacked together front and back, and the spray piece, the gasket and the rectifying piece cooperate to surround and define A mixed flow space is formed, and the rectifying sheet has two obliquely extending clockwise or counterclockwise from its rear side to its front side, which can be used to guide the water from the nozzle module into the mixed flow. A drainage hole in the space, the spray sheet has a spray hole that penetrates back and forth and can atomize and spray the water in the mixed flow space forward. The electrostatic spraying device according to claim 15, wherein, the nozzle hole of the nozzle has a conical section with an opening facing back to communicate with the mixed flow space and a diameter gradually narrowing forward, and a conical section from the front end of the conical section, etc. The ejection section that extends radially forward and communicates with the outside world. The electrostatic spraying device as claimed in claim 4, wherein the nozzle module includes a nozzle body for the atomization module to be installed, and a nozzle body installed on the front end of the nozzle body to position the atomization module on the nozzle The locking ring cover of the main body, the electrostatic cover ring body is relatively rotatably sleeved outside the nozzle body, and the electrostatic sprayer also includes a positioning clip detachably clamped outside the static cover ring body, the positioning clip The electrostatic cover ring is embedded in the radial direction, and the static cover ring is locked and positioned on the shower head body so that it cannot rotate relative to the shower head body. The electrostatic spraying device according to claim 17, wherein, the outer peripheral surface of the spray head body is concavely provided with a plurality of positioning slots arranged at intervals along its periphery, and the electrostatic cover ring is radially pierced with two positioning slots respectively corresponding to the positioning slots. The two radially corresponding alignment holes of the card slot, the positioning clip has two elastic arm parts facing each other against the outer peripheral surface of the ring of the electrostatic cover, and two clips respectively protruding from the elastic arm parts Buckle parts, the buckle parts are respectively embedded in the alignment holes, and are detachably embedded and positioned in the corresponding positioning slots. The electrostatic spraying device according to claim 18, wherein the spray head body has a tube body that defines the positioning slots, and two radially protruding from the outer peripheral surface of the tube body and are respectively located at the positioning slots. The limit ring parts on the front and rear sides of the card slot, the limit ring parts cooperate with the pipe body to define an annular clamping space, and the positioning clamping grooves are distributed in the clamping space. The outer peripheral surface of the limiting ring part is concavely provided with two disassembly gaps that penetrate through the clamping space in front and back. The collar part of the alignment hole, and two convex clamping parts that protrude from the collar part into the clamping space and are limited by the limiting ring parts. The convex clamping parts can be locked by the collar The part is driven to rotate and displace in the clamping space, and can be driven by the collar to move through the disassembly gaps to leave the clamping space.

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