Water pump capable of automatically degassing

Abstract

The utility model discloses a water pump capable of automatically degassing, and belongs to the technical field of water pumps. The problem that in the prior art, when a pure electric vehicle or a hybrid vehicle uses a water pump, the water pump does not rotate due to unsmooth exhaust sometimes is solved. The water pump mainly comprises a pump shell, an impeller cavity is formed in the pump shell, an impeller is installed in the impeller cavity, the pump shell is provided with a water outlet pipe communicated with the impeller cavity, a water outlet is formed in the top of the water outlet pipe, and a one-way breathable film is installed on the outer side wall of the water outlet pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and more particularly, to a water pump capable of automatically removing air. Background Art

[0002] When using a water pump in a pure electric or hybrid vehicle, the water pump sometimes fails to rotate due to poor air exhaust, which affects the heat dissipation of the circuit and causes the vehicle to overheat and be unable to drive. Currently, in order to increase air removal, an air removal pipe is often installed in vehicles. However, due to the large number of circuits in hybrid vehicles, it is difficult to arrange the air removal pipe. Moreover, when the air removal pipe is too long or the routing is not smooth, it sometimes causes poor circuit flow, resulting in the water pump not rotating. Summary of the Invention

[0003] The purpose of the utility model is to provide a water pump capable of automatically removing air, so as to overcome the problem that when using a water pump in a pure electric or hybrid vehicle in the prior art, the water pump sometimes fails to rotate due to poor air exhaust.

[0004] The utility model is realized by the following technical solutions: a water pump capable of automatically removing air, including a pump housing. An impeller chamber is provided inside the pump housing, and an impeller is installed in the impeller chamber. The pump housing is provided with a water outlet pipe communicating with the impeller chamber. The top of the water outlet pipe is provided with a water outlet, and a one-way breathable membrane is installed on the outer side wall of the water outlet pipe.

[0005] Further, a spiral water channel is provided outside the impeller chamber of the pump housing. The water channel includes an inlet and an outlet. The inlet of the water channel communicates with the impeller chamber of the pump housing, and the outlet of the water channel communicates with the water outlet pipe of the pump housing.

[0006] Further, 1 - 3 turns of spiral water channels are provided outside the impeller chamber of the pump housing.

[0007] Further, 2 turns of spiral water channels are provided outside the impeller chamber of the pump housing.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] By installing a one-way breathable membrane on the outer side wall of the water outlet pipe of the pump housing, the utility model can effectively discharge the gas generated during the operation of the water pump, thus solving the problem that when using a water pump in a pure electric or hybrid vehicle in the prior art, the water pump sometimes fails to rotate due to poor air exhaust.

[0010] By providing a spiral water channel outside the impeller chamber, the utility model can increase the centrifugal effect of the coolant in the pump housing and increase the flow path of the coolant in the pump housing, so as to achieve the purpose that the gas in the coolant can be more fully separated from the coolant, and make the air removal effect of the utility model more obvious. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of a water pump in the prior art.

[0013] In the figure: 1. pump casing; 2. impeller chamber; 3. impeller; 4. water outlet pipe; 5. one-way breathable membrane; 6. water channel; 7. inlet; 8. outlet; 9. water outlet; 10. outer wall. DETAILED DESCRIPTION

[0014] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0015] A water pump capable of automatically degassing, as shown in the attached Figure 1 As shown, it includes a pump casing 1, wherein an impeller chamber 2 is provided in the pump casing 1, an impeller 3 is installed in the impeller chamber 2, the pump casing 1 is provided with a water outlet pipe 4 connected to the impeller chamber 2, a water outlet 9 is provided at the top of the water outlet pipe 4, and a one-way breathable membrane 5 is installed on the outer side wall 10 of the water outlet pipe 4.

[0016] The utility model installs a one-way air permeable membrane 5 on the outer side wall 10 of the water outlet pipe 4 on the pump housing 1. The one-way air permeable membrane 5 is a prior art that only allows gas to pass through in one direction, while water and coolant cannot pass through. During the operation of the water pump, the impeller 3 in the impeller chamber 2 rotates at a high speed. Under the action of centrifugal force, the coolant in the impeller 3 in the pump casing 1 is thrown to the outer edge of the impeller 3, and continuously gains energy as the impeller 3 rotates, and is finally thrown out from the water outlet pipe 4 of the pump casing 1. Under the action of centrifugal force, the gas in the coolant will be thrown to the outer side wall 10 of the water outlet pipe 4. The utility model installs a one-way breathable membrane 5 at the outer side wall 10 of the water outlet pipe 4 of the pump casing 1. When the coolant is thrown out from the impeller chamber 2, part of the gas in the coolant will be separated from the coolant and thrown to the outer side wall 10 of the water outlet pipe 4 of the pump casing 1, so that the gas in the pump casing 1 contacts the one-way breathable membrane 5 and escapes from the one-way breathable membrane 5 to the atmosphere outside the pump casing 1, thereby enabling the utility model to achieve the effect of removing the internal gas of the water pump by installing the one-way breathable membrane 5; when the water pump in the utility model is assembled and installed, as shown in the attached Figure 1 As shown, it is recommended that the outlet pipe 4 of the water pump is located at the highest point of the water pump. When the one-way air permeable membrane 5 is installed on the outer side wall 10 of the outlet pipe 4 of the pump housing 1, it should be ensured that the one-way air permeable membrane 5 is at the highest position of the outer side wall 10 of the outlet pipe 4 as much as possible.Figure 1 As shown, the height of the outer wall 10 of the water outlet pipe 4 increases gradually from the outlet 8 to the water discharge port 9. At this time, the installation position of the one-way breathable membrane 5 should be made as close as possible to the water discharge port 9.

[0017] The pump housing 1 is provided with a spiral water channel 6 outside the impeller chamber 2. The water channel 6 includes an inlet 7 and an outlet 8. As shown in the attached Figure 1 figure, Figure 1 In the figure, the inner dotted line of the two dotted lines represents the inlet 7 of the water channel 6, and the outer dotted line of the two dotted lines represents the outlet 8 of the water channel. The inlet 7 of the water channel 6 communicates with the impeller chamber 2 of the pump housing 1, and the outlet 8 of the water channel 6 communicates with the water outlet pipe 4 of the pump housing 1. By setting the spiral water channel 6, the water outlet pipe 4 of the pump housing 1 is communicated with the impeller chamber 2 through the water channel 6, which can increase the centrifugal effect of the coolant in the pump housing 1 and the flow stroke of the coolant in the pump housing 1, so as to achieve the purpose that the gas in the coolant can be more fully separated from the coolant, and make the degassing effect of the present invention more obvious.

[0018] The pump housing 1 is provided with 1 - 3 turns of spiral water channels 6 outside the impeller chamber 2. Preferably, the pump housing 1 is provided with 2 turns of spiral water channels 6 outside the impeller chamber 2. By setting multiple turns of water channels 6, the centrifugal force of the coolant flowing in the pump housing 1 and the separation effect of the gas and the coolant can be further enhanced.

Claims

1. A water pump capable of automatically degassing, characterized in that, It includes a pump casing (1), an impeller chamber (2) is provided inside the pump casing (1), an impeller (3) is installed in the impeller chamber (2), the pump casing (1) is provided with a water outlet pipe (4) communicating with the impeller chamber (2), a water outlet (9) is provided at the top of the water outlet pipe (4), and a one-way breathable membrane (5) is installed on the outer side wall (10) of the water outlet pipe (4).

2. The automatic degassing water pump according to claim 1, characterized in that, The pump casing (1) is provided with a spiral water channel (6) outside the impeller chamber (2), the water channel (6) includes an inlet (7) and an outlet (8), the inlet (7) of the water channel (6) communicates with the impeller chamber (2) of the pump casing (1), and the outlet (8) of the water channel (6) communicates with the water outlet pipe (4) of the pump casing (1).

3. The automatic degassing water pump according to claim 1, wherein The pump casing (1) is provided with 1 - 3 turns of spiral water channels (6) outside the impeller chamber (2).

4. The automatic degassing water pump according to claim 3, characterized in that, The pump casing (1) is provided with 2 turns of spiral water channels (6) outside the impeller chamber (2).

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