阅读说明：本技术 一种手持式清洗机 (Hand-held type cleaning machine ) 是由 陈浩 余刚 于 2019-09-04 设计创作，主要内容包括：本发明公开了一种手持式清洗机,包括清洗机外壳、设置在清洗机外壳上的喷嘴、安装在清洗机外壳内的电机和泵,电机通过电连接单元与电源连接；所述电机为密封结构,电连接单元与电机的连接为密封连接,电源与电连接单元的连接处设有防水结构,所述电源为密封结构。相比于现有技术,本发明具有如下技术效果：清洗机外壳的老化和破损,不影响其内部电机、电连接单元的防水性能,以及电源的防水性能；清洗机外壳的拆卸与复位,不影响其内电机、电连接单元、电源的防水性能；由于电机、电连接单元、电源本身具有防水性能,因此,该类零部件的更换不影响清洗机防水性能的保持。(The invention discloses a handheld cleaning machine which comprises a cleaning machine shell, a nozzle arranged on the cleaning machine shell, a motor and a pump, wherein the motor and the pump are arranged in the cleaning machine shell; the motor is of a sealing structure, the electric connection unit is connected with the motor in a sealing mode, a waterproof structure is arranged at the joint of the power supply and the electric connection unit, and the power supply is of a sealing structure. Compared with the prior art, the invention has the following technical effects: the aging and damage of the shell of the cleaning machine do not affect the waterproof performance of the motor and the electric connection unit inside the cleaning machine and the waterproof performance of the power supply; the shell of the cleaning machine is disassembled and reset, so that the waterproof performance of the motor, the electric connection unit and the power supply in the shell is not influenced; because the motor, the electric connection unit and the power supply have waterproof performance, the replacement of the parts does not influence the maintenance of the waterproof performance of the cleaning machine.)

1. A hand-held cleaning machine comprises a cleaning machine shell (10), a nozzle (20) arranged on the cleaning machine shell, a motor (30) and a pump (40) which are arranged in the cleaning machine shell, wherein the motor is connected with a power supply (60) through an electric connection unit (50); the method is characterized in that: the motor is of a sealing structure, the electric connection unit is connected with the motor in a sealing mode, a waterproof structure is arranged at the joint of the power supply and the electric connection unit, and the power supply is of a sealing structure.

2. The cleaning machine of claim 1, wherein: water flowing from outside the washer to the pump (40) passes through the motor (30).

3. The cleaning machine of claim 2, wherein: the motor (30) comprises a motor outer shell (31), a motor inner shell (32), a front end cover (33), a rear end cover, a stator (35) and a rotor (36), wherein the motor outer shell and the motor inner shell are cylindrical, the stator and the rotor are arranged in the motor inner shell, the front end cover seals the front end faces of the motor outer shell and the motor inner shell, and the rear end cover seals the rear end faces of the motor outer shell and the motor inner shell; an annular cavity between the motor outer shell and the motor inner shell is provided with a water inlet (37) and a water outlet (38), and water flowing to a pump (40) from the outside of the cleaning machine enters the annular cavity through the water inlet and then exits the water outlet.

4. The cleaning machine of claim 1, wherein: the motor is provided with a wire hole position, a wire of the electric connection unit extends into the wire hole position, and a first sealing ring is arranged between the wire hole position and the wire to realize the sealing connection of the electric connection unit and the motor.

5. The cleaning machine of claim 1, wherein: the electric connection unit (50) is provided with a switch device (51) which is a waterproof switch.

6. The cleaning machine of claim 5, wherein: the switch device (51) is a Hall switch.

7. The cleaning machine of claim 1, wherein: the electric connection unit (50) is provided with a male head (52) leading out of the shell (10) of the cleaning machine, the male head is in sealing fit with the shell of the cleaning machine, a power supply (60) is clamped on the shell of the cleaning machine and provided with a female head (61) matched with the male head, and a second sealing ring (62) is arranged on the periphery of the male head.

8. The cleaning machine of claim 7 wherein: the power supply (60) comprises a power supply shell (63), a battery (64) and a clamping piece (65), wherein the power supply shell seals the battery, the clamping piece is arranged outside the power supply shell, the clamping piece is matched with a clamping structure, and the clamping structure is arranged on the cleaning machine shell (10); the female head (61) comprises a female head shell (611) and a female head conductor (612), the female head conductor is connected with the battery, an insulator (613) is arranged on the periphery of the female head conductor, sealant is filled between the insulator and the female head conductor, and a third sealing ring (66) is arranged between the insulator and the power supply shell.

Technical Field

The present invention relates to a liquid ejecting apparatus.

Background

A hand-held cleaning machine mainly comprises a shell, a nozzle, a motor, a pump and a battery or an external power line. When the cleaning machine works, the motor needs to radiate heat, and in order to achieve the effects of radiating heat and preventing water, a patent document with application publication number of CN 110052342A discloses a waterproof rechargeable amphibious high-pressure cleaning machine, wherein a motor shell of the cleaning machine is provided with a cooling channel communicated with a water inlet and a water outlet, the water inlet is connected with a water source, and the water outlet is connected with a pump of the cleaning machine, so that the water cooling of the motor is realized; meanwhile, the sealing waterproof grade of the shell of the cleaning machine is not lower than IPX7, namely the cleaning machine adopts the shell to be waterproof.

In the actual use process, the cleaning machine breaks down and needs to be disassembled for maintenance, the disassembly of the shell belongs to the first step of disassembling the machine, the shell is installed again, and the waterproof effect of the shell is possibly unsatisfactory. Moreover, the hand-held cleaning machine is difficult to avoid collision or fall in the actual use process, the shell of the hand-held cleaning machine is easy to damage, and the waterproof performance is reduced.

Disclosure of Invention

The technical problems solved by the invention are as follows: how to maintain the waterproof performance of the hand-held washer.

In order to solve the technical problems, the invention provides the following technical scheme: a hand-held cleaning machine comprises a cleaning machine shell, a nozzle arranged on the cleaning machine shell, a motor and a pump which are arranged in the cleaning machine shell, wherein the motor is connected with a power supply through an electric connection unit; the motor is of a sealing structure, the electric connection unit is connected with the motor in a sealing mode, a waterproof structure is arranged at the joint of the power supply and the electric connection unit, and the power supply is of a sealing structure.

The hand-held version of the invention may be any shape that is convenient for a user to hold the cleaning machine, such as a pistol shape. The shape of the washer determines the shape of the washer housing. The components of the cleaning machine of the invention have waterproof function, so that the cleaning machine shell has no special requirement on the sealing performance of the cleaning machine shell, and the cleaning machine shell can have waterproof function, for example, a waterproof rechargeable amphibious high-pressure cleaning machine disclosed in the patent document with the publication number of CN 110052342A, and the cleaning machine shell can also be a cleaning machine shell without waterproof function in the prior art.

The nozzle is arranged at the water outlet end of the cleaning machine, namely the front end of the cleaning machine. A pipeline structure for water circulation is arranged between the nozzle and the pump, the pump pressurizes water, the pump can be any type of pump in the prior art, such as a plunger pump and a piston pump, the kinetic energy of the pump comes from a motor, the kinetic energy of the motor comes from electric energy, and therefore the motor needs to be waterproof. According to the prior art, the waterproofing of the motor, the wires connecting the motor and the power supply and the switches arranged on the wires is aided by the sealing of the washer housing, which, as described in the background above, is difficult and difficult to maintain. Therefore, firstly, the motor is designed into a sealing structure, the motor is an independent waterproof body, the electric connection unit for connecting the motor and the power supply is also an independent waterproof body, and the power supply is also an independent waterproof body; secondly, the connection part of the motor and the electric connection unit is designed to be in sealing connection, and the connection part of the electric connection unit and the power supply is designed to be of a waterproof structure. So, the power of power supply is waterproof, and it is waterproof to obtain the motor of electricity, and the electric connection unit of transmission electricity is waterproof, and the junction between the three is waterproof, and the cleaning machine needs waterproof spare part all to obtain waterproof, and whole cleaning machine just has waterproof performance, and no matter whether the cleaning machine shell is waterproof.

Compared with the prior art, the waterproof design scheme of the cleaning machine has the following technical effects:

firstly, the shell of the cleaning machine has a protection function on the internal parts, and the ageing and damage of the shell of the cleaning machine do not influence the waterproof performance of the internal motor and the electric connection unit and the waterproof performance of the power supply;

secondly, the shell of the cleaning machine is disassembled and reset, so that the waterproof performance of the motor, the electric connection unit and the power supply in the shell is not influenced;

thirdly, the replacement of the motor, the electric connection unit and the power supply, since these parts have waterproof performance, the waterproof performance of the washing machine can be maintained.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a hand-held washer;

FIG. 2 is a schematic view of the washer housing 10 of FIG. 1 shown hidden;

FIG. 3 is a schematic diagram of the power supply 60 of FIG. 1 or FIG. 2;

FIG. 4 is an exploded view of FIG. 3;

fig. 5 is a schematic view of the exploded view of fig. 4 viewed from the right side;

FIG. 6 is a schematic view of the motor 30 of FIG. 1 or 2;

fig. 7 is an exploded view of fig. 6.

The symbols in the drawings illustrate that:

10. cleaning machine shell; 11. a connector connected to an external water source;

20. a nozzle;

30. a motor; 31. a motor housing; 32. a motor inner casing; 33. a front end cover; 35. a stator; 36. a rotor; 37. a water inlet; 38. a water outlet; 39. the sealing ring is arranged between the motor outer shell and the motor inner shell;

40. a pump;

50. an electrical connection unit; 51. a switching device; 52. a male head; 53. a handle switch member;

60. a power source; 61. a female head; 611. a female housing; 612. a female conductor; 613. an insulator; 62. a second seal ring; 63. a power supply housing; 631. an upper cover; 632. a lower case; 64. a battery; 65. a clamping piece; 66. a third seal ring; 67. a clamping part; 671. clamping the groove; 672. and (4) inserting the jack.

Detailed Description

Referring to fig. 1 and 2, the hand-held washing machine comprises a washing machine shell 10, a nozzle 20 arranged on the washing machine shell, a motor 30 arranged in the washing machine shell and a pump 40.

As shown in fig. 1, the motor 30 is connected to a power source 60 through an electrical connection unit 50. The motor is of a sealing structure, the electric connection unit is connected with the motor in a sealing mode, a waterproof structure is arranged at the joint of the power supply and the electric connection unit, and the power supply is of a sealing structure.

Referring to fig. 6 and 7, the motor 30 includes a motor outer housing 31, a motor inner housing 32, a front cover 33, a rear cover, a stator 35, and a rotor 36. The motor outer shell and the motor inner shell are cylindrical and independent from each other, can be formed by adopting stamping and stretching processes, and are convenient to process, low in cost and convenient to mount and dismount. The stator and rotor are mounted in the motor inner housing, wherein the stator contacts the motor inner housing 32, facilitating heat dissipation. The front end cover seals the front end surfaces of the motor outer shell and the motor inner shell, and the rear end cover seals the rear end surfaces of the motor outer shell and the motor inner shell; the annular cavity between the motor outer shell and the motor inner shell is provided with a water inlet 37 and a water outlet 38, and water flowing to a pump 40 from the outside of the cleaning machine enters the annular cavity through the water inlet and exits the water outlet to dissipate heat of the motor. Preferably, the motor is a brushless motor, three-phase wires led out from the stator winding are led out of the motor through a front end cover or a rear end cover, a wire hole position is formed in the front end cover or the rear end cover, a first sealing ring is arranged between the wire hole position and the wires, and the wires are components of the electric connection unit. Therefore, the motor adopts a sealing structure, the heat dissipation of the motor adopts a water cooling mode, and the electric connection unit is hermetically connected with the motor through the sealing ring.

As shown in fig. 1, the electrical connection unit 50 is provided with a switching device 51, which is a waterproof switch. Preferably, the switch device 51 is a hall switch. The Hall switch is an active magnetoelectric conversion device, is manufactured by utilizing integrated packaging and assembling processes on the basis of the Hall effect principle, has good waterproof performance, and can conveniently convert a magnetic input signal into an electric signal. The input end of the Hall switch is characterized by magnetic induction intensity, specifically, the magnetic induction intensity of the input end of the Hall switch is controlled by a handle type switch piece 53, the handle type switch piece is provided with a magnet, the handle type switch piece is hinged on the cleaning machine shell 10, and a user actuates the handle type switch piece, so that the distance between the magnet and the Hall switch is changed. When the magnetic induction intensity reaches a certain degree, the trigger inside the Hall switch is turned over, and the output level state of the Hall switch is also turned over accordingly. The output end of the hall switch generally adopts a transistor to control the on-off of the power supply 60 and the motor 30.

As shown in fig. 1, the electrical connection unit 50 is provided with a male head 52 leading out of the washer housing 10, and the male head and the washer housing are in sealing fit, can be in sealing ring fit, and can also be integrally formed on the washer housing. The power supply 60 is clamped on the shell of the cleaning machine and is provided with a female head 61 matched with the male head, and as shown in fig. 4, the periphery of the male head is provided with a second sealing ring 62. The male head is inserted into the female head, the conductor in the male head is contacted with the conductor in the female head, and the second sealing ring seals the gap between the male head and the female head, so that the sealed connection between the electric connection unit 50 and the power supply 60 is realized.

With reference to fig. 3 to 5, the power supply 60 includes a power supply housing 63, a battery 64, and a clamping member 65, wherein the power supply housing includes an upper cover 631 and a lower cover 632, which are sealed by a sealing ring to seal the battery. The shaping has joint portion 67 on the upper cover 631, and the shaping has joint recess 671 on the joint portion, joint spare 65 joint is in the joint recess. Cleaning machine shell 10 is equipped with the joint structure, and when power 60 was connected with cleaning machine shell 10, joint portion 67 was at first along the joint structure translation, made public head 52 closely cooperate with female head 61, wherein, joint piece 65 elastic deformation in the joint structure supports and presses on the inside wall of joint structure, treats that joint portion when the assembly targets in place in the joint structure, the recess counterpoint in joint piece and the joint structure, and the elastic potential energy of joint piece obtains the release, blocks into in the recess, realize being connected of power 60 and cleaning machine shell 10, also realized being connected of power and electric connecting unit 50.

As shown in fig. 5, the female connector 61 includes a female connector shell 611 and a female connector 612, an insulator 613 is disposed on the periphery of the female connector, a female connector hole is disposed on the upper cover 631 of the power supply shell 63, the female connector is mounted in the female connector hole, a third sealing ring 66 is disposed between the insulator and the female connector hole, and a sealant is filled between the insulator and the female connector conductor to ensure the sealing performance of the power supply. The female head conductor that stretches into power supply housing 63 is connected with the battery, and the female head conductor that stretches out power supply housing is located female head housing 611, the one end of joint portion 67 is equipped with jack 672, and female head conductor is located this jack, and the one end of joint portion 67 has been acted as female head housing 611 promptly.

The above-mentioned external joint portion 67 and joint spare 65 of putting outside power supply housing 63, the joint structure of shaping on the cleaning machine shell 10, the public head 52 of setting on the cleaning machine shell, the female head 61 of setting on power supply housing 63 have constituted the waterproof construction of power 60 and electric connection unit 50 in the junction.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.