CN206785660U

CN206785660U - Low noise water pump

Info

Publication number: CN206785660U
Application number: CN201720617047.1U
Authority: CN
Inventors: 吴小宇; 薛聪
Original assignee: JIANGSU RIYING ELECTRICAL CO Ltd
Current assignee: JIANGSU RIYING ELECTRICAL CO Ltd
Priority date: 2017-05-27
Filing date: 2017-05-27
Publication date: 2017-12-22
Anticipated expiration: 2027-05-27

Abstract

The utility model provides a kind of low noise water pump, including water pump upper casing, water pump lower casing, water pump bottom, motor and the impeller being sequentially connected, the axle of motor passes through water pump lower casing, extend in wheel chamber and be fixedly connected with impeller, water pump lower casing is provided with inlet and liquid outlet, inlet is connected with the wheel chamber, and the runner of annular, wheel chamber and liquid outlet described in flow passage are provided between wheel chamber and water pump lower casing.Form runner and wheel chamber's two spaces after water pump lower casing and the assembling of water pump bottom, separated between two spaces by seal groove, reduce water pump rotate caused by noise propagated to outside car, significantly reduce noise；Because runner is elongated, make in wheel chamber by impeller disturbance current it is more steady, reduce because cleaning fluid quickly flow caused by noise；Because runner is elongated, not reduce output pressure, the more common blade of water pump blade is wider, it is ensured that output pressure is stable.

Description

Low noise water pump

Technical field

Automobile air window wash mill technical field is the utility model is related to, more particularly to a kind of low noise water pump.

Background technology

Existing automobile front windshield washing pump mainly forms chamber, band of the impeller in motor by water pump lower casing and water pump bottom Under dynamic, high-speed rotation, makes water be sprayed from the passage on water pump lower casing in the chamber.Formed due to water pump lower casing and water pump bottom The passage of plenum chamber and water pump lower casing is direct-connected, and wheel chamber is led directly to outside washing pump so that is made an uproar caused by impeller high speed rotation Sound, it is very easy to outside outflow water pump, causing washing pump, noise is larger at work.

Utility model content

Technical problem to be solved in the utility model is：In order to overcome the shortcomings of that noise is big in the prior art, this practicality A kind of new low noise water pump of offer, prevents interior noise from spreading out of by the way of runner is extended.

The utility model solves its technical problem technical scheme to be taken：A kind of low noise water pump, including successively Water pump upper casing, water pump lower casing and the water pump bottom of connection, motor chamber is formed between the water pump upper casing and water pump lower casing, it is described Motor is provided with motor chamber, wheel chamber is formed between the water pump lower casing and water pump bottom, is provided with the wheel chamber Impeller, the axle of the motor passes through the water pump lower casing, extends in the wheel chamber and be fixedly connected with the impeller, described Water pump lower casing is provided with inlet and liquid outlet, and the inlet connects with the wheel chamber, the wheel chamber with it is described The runner of annular, wheel chamber described in the flow passage and the liquid outlet are provided between water pump lower casing.The runner of annular has Effect extends the path of current process, effectively reduces noise.

Further, the inner flow passage wall and outer flow passage wall set in the water pump lower casing provided with inner and outer ring, the outer flow passage wall are The annular of closing, the inner flow passage wall are the annular provided with opening, and the stream is formed between the inner flow passage wall and outer flow passage wall Road, the runner are connected by opening with the wheel chamber.

Further, the water pump bottom is provided with the seal groove with the inner flow passage wall form fit, the inner flow passage wall In the embedded seal groove.Realize the separation of wheel chamber and runner.

Preferably, the central angle of the runner is more than 180 °.Make the length proper extension of runner.

Preferably, the material of the water pump uses POM, PA66 or PBT.POM, PA66 or PBT etc. are super for that can use The welding water pump material of sonic welding.

The beneficial effects of the utility model are：A kind of low noise water pump provided by the utility model, water pump lower casing and water pump Runner and wheel chamber's two spaces are formed after bottom assembling, are separated between two spaces by seal groove, reduce water pump rotation Caused noise is propagated to outside car, significantly reduces noise, up to 5-6dB；Because runner is elongated, make to pass through in wheel chamber Impeller disturbance current it is more steady, reduce because cleaning fluid quickly flow caused by noise；Because runner is elongated, not reduce Output pressure, the more common blade of water pump blade are wider, it is ensured that output pressure is stable.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the configuration schematic diagram of the best embodiment of the utility model；

Fig. 2 is the structural representation of the best embodiment of the utility model；

Fig. 3 is the profile of the best embodiment of the utility model；

Fig. 4 is the mplifying structure schematic diagram of A in Fig. 3；

Fig. 5 is the structural representation that impeller and motor are saved in Fig. 3；

Fig. 6 is the structural representation of water pump lower casing；

Fig. 7 is the structural representation of water pump bottom.

In figure：1st, water pump upper casing, 2, water pump lower casing, 3, water pump bottom, 4, motor chamber, 5, motor, 6, wheel chamber, 7, Impeller, 8, inlet, 9, liquid outlet, 10, runner, 11, opening, 12, seal groove, 13, inner flow passage wall, 14, outer flow passage wall, 15, Simmer ring.

Embodiment

The utility model is described in detail presently in connection with accompanying drawing.This figure is simplified schematic diagram, only in a schematic way Illustrate basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.

As shown in figs. 1-7, a kind of low noise water pump of the present utility model, including be sequentially connected water pump upper casing 1, under water pump Shell 2 and water pump bottom 3, motor chamber 4 is formed between the water pump upper casing 1 and water pump lower casing 2, is provided with the motor chamber 4 Motor 5, wheel chamber 6 is formed between the water pump lower casing 2 and water pump bottom 3, impeller 7 is provided with the wheel chamber 6, it is described The axle of motor 5 passes through the water pump lower casing 2, extends in the wheel chamber 6 and is fixedly connected with the impeller 7, the motor 5 Axle be tightly connected by Simmer ring 15 and the water pump lower casing 2, the water pump lower casing 2 is provided with inlet 8 and liquid outlet 9, described one end of inlet 8 is connected with the wheel chamber 6, and the other end is connected with vehicle-mounted kettle, the wheel chamber 6 with it is described The runner 10 of annular is provided between water pump lower casing 2, the runner 10 connects the wheel chamber 6 and the liquid outlet 9, liquid outlet 9 other ends are connected with washer jet.The runner 10 of annular effectively extends the path of current process, effectively reduces noise.

The inner flow passage wall 13 and outer flow passage wall 14 set in the water pump lower casing 2 provided with inner and outer ring, the outer flow passage wall 14 are The annular of closing, the inner flow passage wall 13 are the annular provided with opening 11, shape between the inner flow passage wall 13 and outer flow passage wall 14 Into the runner 10, the runner 10 is connected by opening 11 with the wheel chamber 6.

The water pump bottom 3 is provided with the seal groove 12 with the form fit of inner flow passage wall 13, the inner flow passage wall 13 In the embedded seal groove 12.Realize the separation of wheel chamber 6 and runner 10.

Preferably, the central angle of the runner 10 is more than 180 °.Make the length proper extension of runner 10.In the present embodiment Because angle is 90 ° between inlet 8 and liquid outlet 9, therefore, the angle of runner 10 is 270 °.

Its operation principle is, after motor 5 is connect into electricity, the impeller 7 on the axle of drive motor 5 rotates, in water pump lower casing 2 and water pump Negative pressure is formed in the wheel chamber 6 that bottom 3 forms, so as to drive cleaning fluid to flow to washer jet from vehicle-mounted kettle.

Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model Technical scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.

Claims

1. a kind of low noise water pump, including water pump upper casing (1), water pump lower casing (2) and the water pump bottom (3) being sequentially connected, described Motor chamber (4) is formed between water pump upper casing (1) and water pump lower casing (2), motor (5) is provided with the motor chamber (4), it is described Wheel chamber (6) are formed between water pump lower casing (2) and water pump bottom (3), impeller (7) is provided with the wheel chamber (6), it is described The axle of motor (5) passes through the water pump lower casing (2), extends in the wheel chamber (6) and is fixedly connected with the impeller (7), It is characterized in that：The water pump lower casing (2) is provided with inlet (8) and liquid outlet (9), the inlet (8) and the impeller Chamber (6) is connected, and the runner (10) of annular, the runner are provided between the wheel chamber (6) and the water pump lower casing (2) (10) wheel chamber (6) and the liquid outlet (9) are connected.

2. low noise water pump as claimed in claim 1, it is characterised in that：Set in the water pump lower casing (2) provided with inner and outer ring Inner flow passage wall (13) and outer flow passage wall (14), the outer flow passage wall (14) are the annular of closing, and the inner flow passage wall (13) is to set There is the annular of opening (11), the runner (10), the runner are formed between the inner flow passage wall (13) and outer flow passage wall (14) (10) connected by opening (11) with the wheel chamber (6).

3. low noise water pump as claimed in claim 2, it is characterised in that：The water pump bottom (3) is provided with and the interior stream The seal groove (12) of road wall (13) form fit, the embedded seal groove (12) of the inner flow passage wall (13) are interior.

4. the low noise water pump as described in claim any one of 1-3, it is characterised in that：The central angle of the runner (10) is more than 180°。

5. low noise water pump as claimed in claim 1, it is characterised in that：The material of the water pump uses POM, PA66 or PBT.