CN110758329A

CN110758329A - Washer for vehicle

Info

Publication number: CN110758329A
Application number: CN201911373029.3A
Authority: CN
Inventors: 吴会文
Original assignee: Ningbo Junsheng Qunying Automobile System Co Ltd
Current assignee: Ningbo Junsheng Qunying Automobile System Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-02-07
Anticipated expiration: 2039-12-27
Also published as: CN110758329B

Abstract

The invention provides a vehicle washer, which comprises a washing tank for storing washing liquid, a washing pump and a liquid driving system. The washing pump is communicated with the washing tank and is used for pumping out the washing liquid in the washing tank; and a liquid drive system for driving the wash pump with liquid. The liquid driving system for the vehicle washer replaces the vehicle washer with the electromagnetic winding in the prior art, and is safe and noiseless.

Description

Washer for vehicle

Technical Field

The invention relates to the technical field of washers, in particular to a washer for a vehicle.

Background

Cleaning of the window is required because dust and dirt can accumulate on the window, thereby affecting the driver's view. At present, the vehicle window is generally cleaned by a vehicle washer, which has a function of spraying water, and cleaning water or washing liquid is sprayed onto the window, so that dust and dirt on the window are removed.

The existing vehicle washer mainly comprises a washing motor, a washing pump, a liquid storage tank, a nozzle, a water pipe and the like. The liquid storage tank is provided with a washing pump, the washing pump is provided with an electromagnetic winding and is started after being electrified with the storage battery, and finally washing liquid in the liquid storage tank is pumped out to the front windshield, the rear windshield, the headlamp lampshade or the camera outer cover of the automobile to finish the cleaning work.

As shown in fig. 1, a washing pump in the conventional washer has an electromagnetic winding 1, which generates a large inrush current at the time of starting, thereby generating conductive and radiative EMC, requiring some additional electronic components, or generating noise by interfering with a car radio, a speaker, etc. Meanwhile, the motor generates sharp noise during operation, and the comfort of the vehicle is reduced. In addition, the washing pump is stuck due to foreign matters or freezing, so that the safety hazard of short circuit is great.

Disclosure of Invention

The invention aims to provide a vehicle washer which does not generate interference noise.

In order to solve the technical problem, the invention provides a vehicle washer which is used for washing a vehicle, wherein the vehicle comprises a power source, and the vehicle washer comprises a washing tank for storing washing liquid, a washing pump and a liquid driving system. The washing pump is communicated with the washing tank and is used for pumping out the washing liquid in the washing tank; and a liquid driving system for driving the liquid by means of the power source to drive the washing pump.

Optionally, the power source includes a liquid delivery pump, and two ports of the liquid delivery pump are respectively communicated with two ports of the washing pump through pipelines.

Optionally, the vehicle further includes a heat dissipation device, the liquid driving system includes the heat dissipation device of the vehicle, the liquid delivery pump is further communicated with the heat dissipation device, two ports of the washing pump are respectively a first inlet of the washing pump and a first outlet of the washing pump, two ports of the liquid delivery pump are respectively an inlet of the liquid delivery pump and an outlet of the liquid delivery pump, the first outlet of the washing pump is communicated with the heat dissipation device, the heat dissipation device is further communicated with the inlet of the liquid delivery pump, and the outlet of the liquid delivery pump is communicated with the first inlet of the washing pump.

Optionally, the vehicle further includes an overflow tank, the liquid driving system further includes an overflow tank of the vehicle, the overflow tank is disposed between the washing pump and the heat dissipation device, and the overflow tank is respectively communicated with the washing pump and the heat dissipation device.

Optionally, the liquid driving system further includes a pressure stabilizing switch valve, and the pressure stabilizing switch valve is disposed on a pipeline of the first inlet of the washing pump and the outlet of the liquid delivery pump.

Optionally, the washing pump has a second washing pump inlet and a second washing pump outlet, the second washing pump inlet is communicated with the washing tank, the second washing pump inlet is communicated with the second washing pump outlet, and the second washing pump outlet is used for passing through the pumped washing liquid.

Optionally, the wash tank has a cavity for receiving a wash pump, the second inlet of the wash pump being in communication with the bottom of the wash tank.

Optionally, the washing tank comprises a side wall and a bottom, and the cavity is formed by an upper recess of the side wall or the cavity is formed by a bottom recess.

Optionally, the washing pump includes water wheels, transmission shaft and impeller, and water wheels and impeller pass through the transmission shaft intercommunication, and the liquid that liquid delivery pump export flow out promotes water wheels and rotates the back and flow out through the first export of washing pump.

Optionally, the washing liquid flows out from the second outlet of the washing pump through the second inlet of the washing pump under the driving of the impeller.

In summary, the liquid driving system for a vehicle washer according to the present invention replaces the prior art vehicle washer with an electromagnetic winding, and utilizes the prior power source of the vehicle. Therefore, the vehicle washer of the invention does not have electromagnetic winding, and generates no great surge current when starting, thereby generating no conductive EMC and no radiation EMC, and generating no noise to interfere with the vehicle radio and the loudspeaker. Meanwhile, no motor is arranged, so that no motor can generate sharp noise during operation, and the comfort of the vehicle is improved. In addition, the washing pump is driven by liquid and is not provided with a motor, so that short circuit can not occur when the washing pump is blocked due to foreign matters or freezing, and the washing pump is relatively safe.

Drawings

FIG. 1 is a schematic diagram of a scrubber of the prior art;

FIG. 2 is a schematic view of a vehicle washer provided by an embodiment of the present invention;

fig. 3 is a schematic diagram of a wash pump provided in an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The vehicle mentioned in the invention refers to a transportation means in a broad sense, and can be an automobile, a truck, an airplane, a train, a ship, a battery car and a bicycle. The vehicle comprises a power source, a heat dissipation device and a water overflow tank. The power source in this embodiment includes an electric motor and a liquid delivery pump mounted on the electric motor. In other embodiments, the power source may also be any device that can provide power, such as a lithium ion battery, a lead-acid battery, or a pneumatic starting device.

Please refer to fig. 2 and fig. 3. An embodiment of the present invention provides a washer for a vehicle including a wash tank 10 for storing a wash liquid 80, a wash pump 20, and a liquid drive system 90. The washing pump 20 is communicated with the washing tank 10 for pumping out the washing liquid 80 in the washing tank 10; and a fluid drive system 90 for driving fluid using the power source to drive the wash pump 20.

The liquid drive system 90 for a vehicle washer of the present invention replaces the electromagnetic windings in prior art vehicle washers and effectively utilizes the existing power source of the vehicle. Therefore, the vehicle washer of the invention does not have electromagnetic winding, and generates no great surge current when starting, thereby generating no conductive EMC and no radiation EMC, and generating no noise to interfere with the vehicle radio and the loudspeaker. Meanwhile, no motor is arranged, so that no motor can generate sharp noise during operation, and the comfort of the vehicle is improved. Further, since the washing pump 20 is driven by liquid and is not provided with a motor, a short circuit does not occur when the washing pump 20 is stuck due to foreign matter or freezing, and it is relatively safe.

In the present embodiment, the liquid driving system 90 includes a liquid delivery pump 403, and two ports of the liquid delivery pump 403 are respectively communicated with two ports of the washing pump 20 through the pipes 70. The liquid delivery pump 403 in this embodiment is coupled to the vehicle engine 40, so the washer in this embodiment effectively utilizes the vehicle structure, and is economical and convenient by simple modification. Of course, the liquid transfer pump 403 may be a liquid transfer pump of the vehicle itself or may be a liquid transfer pump of the scrubber itself.

The two ports of the wash pump 20 are respectively a wash pump first outlet 201, a wash pump first inlet 202, and the two ports of the liquid transfer pump 403 are respectively a liquid transfer pump inlet 402 and a liquid transfer pump outlet 401. The first outlet 201 of the washing pump is communicated with the inlet 402 of the liquid delivery pump, and the engine 40 is provided with the liquid delivery pump 403. The wash pump first inlet 202 communicates with the liquid transfer pump outlet 401. Thereby, circulation of the flow direction of the liquid for driving of the liquid transfer pump 403 → the liquid transfer pump outlet 401 of the liquid transfer pump 403 → the washing pump first inlet 202 of the washer → the washing pump first outlet 201 of the washer → the liquid transfer pump inlet 402 of the liquid transfer pump 403 → the liquid transfer pump 403 is achieved.

Furthermore, in this embodiment, the liquid driving system 90 further includes a heat dissipating device 50, the liquid delivery pump 403 is further communicated with the heat dissipating device 50, the first outlet 201 of the washing pump and the inlet 402 of the liquid delivery pump are both communicated with the heat dissipating device 50, the heat dissipating device 50 includes an input end and an output end, the first outlet 201 of the washing pump is communicated with the input end of the heat dissipating device 50, the liquid delivery pump 403 is communicated with the output end of the heat dissipating device 50, and the heat dissipating device 50 is configured to cool the hotter liquid from the input end and then flow out from the output end of the heat dissipating device 50. The liquid can be a liquid with a larger specific heat capacity, such as a cooling liquid. The heat dissipation device 50 may be a heat dissipation tank, a heat sink, or any other device capable of dissipating heat. Due to the provision of the heat sink 50, the flowing liquid provides power for pumping the washing liquid 80 out of the washing pump 20.

In this embodiment, the liquid driving system 90 further includes an overflow tank 60, the overflow tank 60 is disposed between the washing pump 20 and the heat sink 50, and the overflow tank 60 is respectively communicated with the washing pump 20 and the heat sink 50. The overflow tank 60 is provided to prevent the liquid level from rising when the liquid temperature rises and the liquid volume expands with heat and contracts with cold, and the excess liquid flows to the overflow tank 60 through the outlet pipe, i.e., a so-called compensation tank.

In this embodiment, the fluid driving system 90 further comprises a pressure stabilizing switching valve 30, and the pressure stabilizing switching valve 30 is disposed on the conduit 70 between the first inlet 202 of the washing pump 20 and the outlet 401 of the fluid delivery pump 403. The pressure stabilizing switching valve 30 is provided to stabilize the pressure of the liquid feed pump 403 to a head required by the washing pump 20. In addition, the voltage-stabilizing switch valve 30 is a switch valve of the washing pump 20, the voltage-stabilizing switch valve 30 is electrically connected with a switch of the cab, and a user in the cab can control the switch of the voltage-stabilizing switch valve 30 through the operation of the switch, so that the work of the washer is controlled. The switch may be a specific handle, touch key, toggle member, etc., and may be actuated by toggling, sliding, rolling, pressing, touching, or other operations to effect the switch.

In the present embodiment, the washing pump 20 has a second washing pump inlet 204, the second washing pump inlet 204 is communicated with the washing tank 10, the washing pump 20 further has a second washing pump outlet 203, the second washing pump outlet 203 is communicated with the second washing pump inlet 204, and the second washing pump outlet 203 is used for passing through the pumped washing liquid 80.

In this embodiment, the wash tank 10 has a cavity for receiving the wash pump 20, and the wash pump second inlet 204 is in communication with the bottom of the wash tank 10. The washing tank 10 includes a sidewall and a bottom, and the cavity is formed by an upper portion of the sidewall being concave, so that the washing tank 10 has a protrusion for mounting the washing pump 20 at a lower portion of the sidewall, which facilitates the mounting of the washing pump 20. In other embodiments, the cavity is formed by a bottom recess. The washing pump 20 is arranged in the cavity, the washing pump 20 is assembled on the washing tank 10 by adopting a sealing ring device, and a support is arranged on the washing tank 10 and used for fixing the washing pump 20. The washing pump 20 is installed on the washing tank 10 to facilitate installation. Especially when the cavity is formed by a bottom recess, the washing pump 20 is rather surrounded by the bottom for protection and installation. The washing pump 20 is arranged in a cavity of a relatively independent space, so that the washing pump 20 and the washing tank 10 can be relatively integrated, and the integral installation of the washer is convenient.

In this embodiment, the washing pump 20 includes a water wheel 208, a transmission shaft 209 and an impeller 211, the water wheel 208 and the impeller 211 are communicated through the transmission shaft 209, the transmission shaft 209 and the water wheel 208 are tightly fitted by using a direct structure, but the transmission shaft 209 and the impeller 211 are loosely fitted to satisfy the assembly condition. The liquid flowing out of the liquid delivery pump outlet 401 of the liquid delivery pump 403 pushes the water wheel 208 to rotate and then flows out through the first outlet 201 of the washing pump. The diameter of the water wheel 208 is 50mm, but in other embodiments, the diameter of the water wheel 208 may be 60mm, or 70mm, or any other data greater than or equal to 50 mm. The diameter of the water wheel 208 is determined according to the pressure of the washing liquid 80 to be drawn out and the size of the washing tank 10. The impeller 211 in this embodiment is of a centrifugal structure, and further, the impeller 211 has a high-efficiency fluid mechanics structure for more efficiently pumping out the washing liquid 80.

The washing pump 20 further includes a volute cover 205, a volute bottom 206 and a base 207, wherein the volute cover 205 and the volute bottom 206 are generally formed by ultrasonic welding and require high sealing performance. The base 207 and the volute bottom 206 are generally formed by ultrasonic welding, and the impeller 211 rapidly rotates in a space enclosed by the base and the volute to spray the washing liquid 80. The washing liquid 80 flows out of the second outlet 203 of the washing pump through the second inlet 204 of the washing pump under the driving of the impeller 211.

Accordingly, and more specifically, a liquid such as a coolant is introduced from the engine-driven liquid delivery pump 403, and the high-pressure, high-flow rate coolant enters the volute cover 205 and the volute bottom 206, thereby applying work to the water wheel 208, and then the impeller 211 is pushed by the drive shaft 209 to rotate rapidly, so that the washing liquid 80 in the washing pump 20 is pumped out of the first washing pump inlet 202. The cooling liquid flowing out of the volute cover 205 and the volute bottom 206 flows into the overflow tank 60 again, then returns to the heat sink 50, and returns to the liquid delivery pump 403 after cooling, thereby forming a circulation.

The water wheel 208 in this embodiment adopts a Francis type, i.e., a transverse axial flow water wheel 208 structure, that is, water flow does work when passing through blades of the water wheel 208 in the radial and axial directions, and the structure is a high-efficiency water wheel 208 structure. The water wheel 208 with such a structure can provide a large output work.

The wash pump 20 further comprises a shaft seal 210, the shaft seal 210 being used to provide a relatively sealed environment. In the prior art, once the shaft seal 210 leaks water after the washing pump 20 is long-term inside, particularly water enters from the heat dissipation holes due to accidental water logging of an automobile, silicon steel sheets of an electromagnetic winding rust and are clamped by permanent magnets, the washing pump does not work suddenly, and great potential safety hazards are brought to driving; the washing pump 20 of the present invention is not provided with an electromagnetic winding, so that the electromagnetic winding is not blocked, thereby reducing the accident rate. Meanwhile, as no electromagnetic winding is arranged, the heating condition is not generated, so that the washer does not need to be provided with heat dissipation holes, has good sealing performance and can reach the IP7X waterproof grade.

It will be understood by those skilled in the art that in the present disclosure, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus the above-described terms should not be construed as limiting the invention.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A vehicle washer for washing a vehicle, the vehicle including a power source, the vehicle washer comprising:

a wash tank for storing a wash liquid;

the washing pump is communicated with the washing tank and used for pumping the washing liquid in the washing tank; and

a liquid drive system for driving liquid by means of the power source to drive the wash pump.

2. The vehicle washer of claim 1, wherein the power source comprises a liquid delivery pump, and wherein two ports of the liquid delivery pump are respectively in communication with two ports of the wash pump via pipes.

3. A vehicle washer according to claim 2, wherein said vehicle further comprises a heat sink, said fluid drive system comprises said heat sink of said vehicle, said fluid transfer pump is further in communication with said heat sink, said two ports of said wash pump are a first inlet of said wash pump and a first outlet of said wash pump, respectively, said two ports of said fluid transfer pump are a first inlet of said fluid transfer pump and a first outlet of said fluid transfer pump, respectively, said first outlet of said wash pump is in communication with said heat sink, said heat sink is further in communication with said inlet of said fluid transfer pump, and said outlet of said fluid transfer pump is in communication with said first inlet of said wash pump.

4. The vehicular washer according to claim 3, wherein said vehicle further comprises a spill tank, said liquid drive system further comprising said spill tank of said vehicle, said spill tank being disposed between said wash pump and said heat sink, said spill tank being in communication with said wash pump and said heat sink, respectively.

5. The vehicular washer according to claim 3, wherein said fluid drive system further comprises a surge valve disposed in a conduit between a first inlet of a wash pump of said wash pump and an outlet of said fluid transfer pump.

6. The vehicle washer of claim 3, wherein the wash pump has a wash pump second inlet in communication with the wash tank, a wash pump second outlet in communication with the wash pump second inlet for passage of the extracted wash liquid.

7. The vehicular washer according to claim 6, wherein said wash tank has a cavity for receiving said wash pump, said wash pump second inlet communicating with a bottom of said wash tank.

8. The vehicle washer of claim 7, wherein said wash tank comprises a sidewall and a bottom, and said cavity is formed by an upper concavity of said sidewall or said cavity is formed by said bottom concavity.

9. The vehicular washer according to claim 6, wherein the washing pump comprises a water wheel, a transmission shaft and an impeller, the water wheel and the impeller are communicated through the transmission shaft, and the liquid flowing out of the outlet of the liquid delivery pump pushes the water wheel to rotate and then flows out through the first outlet of the washing pump.

10. The vehicle washer of claim 9, wherein the wash liquid flows out of the wash pump second outlet through the wash pump second inlet under the urging of the impeller.