condensate pump

Abstract

The utility model discloses a condensing pump, include: pump body, be equipped with first flow guide portion on the pump body, have the water outlet on the pump body, pump cover, be equipped with second flow guide portion on the pump cover, have the water inlet on the pump cover, install the pump cover on the pump body after form the cavity that will water inlet and water outlet intercommunication, first flow guide portion and second flow guide portion are located both sides of water outlet, the water flow that enters the cavity from water inlet passes first flow guide portion and second flow guide portion and flows to water outlet after flow guide gathering. The utility model discloses condensing pump, set up flow guide portion on the pump body and pump cover, optimize the effect of backflow, improve the working efficiency of pump body.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a condensate pump. Background Technology

[0002] The condensate pump consists of a motor, impeller, pump body, and pump cover. The pump body and pump cover form a cavity to accommodate the rotating impeller. The motor is a permanent magnet synchronous motor. After being energized, the motor rotor drives the impeller to rotate at high speed. The liquid in the cavity is discharged from the radial direction by the guide structure inside the pump cover.

[0003] Existing condensate pumps only have a flow guide structure on the pump cover. However, this single flow guide structure is ineffective in guiding and rectifying water flow, resulting in low motor efficiency. Furthermore, while the pump body and pump cover are rigidly fitted to form a sealed space, variations in the dimensions of plastic parts can lead to gaps between the inner walls of the pump body and cover. This prevents a perfect fit between the inner walls, causing leakage and reducing the pressure difference between the inside and outside of the pump chamber, thus lowering the motor's drainage efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the problem of poor flow guiding effect of the single flow guiding structure of the pump cover in the prior art, this utility model provides a condensate pump, which is provided with flow guiding parts on both the pump body and the pump cover to optimize the backflow effect and improve the working efficiency of the pump body.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a condensate pump, comprising: a pump body, wherein the pump body is provided with a first flow guide and a water outlet; a pump cover, wherein the pump cover is provided with a second flow guide and a water inlet, wherein the pump cover, after being installed on the pump body, forms a cavity connecting the water inlet and the water outlet; the first flow guide and the second flow guide are located on both sides of the water outlet; water flowing into the cavity from the water inlet is guided and gathered by the first flow guide and the second flow guide and flows to the water outlet.

[0006] This utility model of a condensate pump utilizes a first guide section and a second guide section located on both sides of the outlet to guide the water flow, directing the water flow to converge and flow in a specific direction, optimizing the control of the water flow direction, stabilizing the water flow, and achieving efficient operation of the pump body.

[0007] Furthermore, in order to concentrate the water flow, the first guide section extends in an arc shape from the upper end face of the pump body toward the outlet, and the second guide section extends in an arc shape from the lower end face of the pump cover toward the outlet.

[0008] Furthermore, in order to guide the water flow, the first guide part is a first guide groove provided on the upper end face of the pump body, and the first guide groove extends in an arc shape from the upper end face of the pump body toward the outlet.

[0009] Furthermore, in order to reduce kinetic energy loss, the lateral width of the first guide channel gradually decreases from the upper end face of the pump body toward the outlet.

[0010] Furthermore, the longitudinal end of the first guide channel extends to the outlet, and the lateral end of the first guide channel extends to the outside of the impeller.

[0011] Furthermore, in order to guide the water flow, the second guide portion includes a guide wall, the inner side of which forms a second guide groove that extends in an arc shape from the lower end face of the pump cover toward the outlet.

[0012] Furthermore, in order to further improve drainage efficiency, the lateral width of the guide wall gradually decreases from the lower end face of the pump cover toward the outlet, while the longitudinal height of the guide wall gradually increases from the lower end face of the pump cover toward the outlet.

[0013] Furthermore, the lateral end of the guide wall is far from the inlet, and the longitudinal end of the guide wall is far from the outlet.

[0014] Furthermore, there is a gap between the outer side of the guide wall and the inner wall of the pump cover.

[0015] Furthermore, to improve the flow guiding effect, the arc radii of the first and second flow guiding channels are equal.

[0016] Furthermore, in order to ensure effective sealing of the pump body and the pump cover, an annular groove is provided on the outer periphery of the pump body, and a sealing gasket is provided in the annular groove. The sealing surface of the pump cover is inserted into the annular groove and is interference-fitted with the sealing gasket.

[0017] Furthermore, in order to ensure a stable connection between the pump body and the pump cover, the pump cover is provided with a buckle and a screw disc in the circumferential direction, the pump body has a screw post corresponding to the screw disc, the buckle is snapped onto the lower end face of the pump body, and the screw post and the screw disc are fastened together by screws.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. The present invention provides a condensate pump with a dual guiding function formed by a first guide section and a second guide section. The water flow achieves a converging effect through the combined guidance of the first guide section and the second guide section, so that the water flow flows to the outlet in a predetermined direction, thereby optimizing the control of the water flow direction and improving the working efficiency of the pump body.

[0019] 2. In this utility model of condensate pump, the first guide section and the second guide section have the same arc radius, which can further reduce the flow resistance and improve the flow guiding effect, thereby further reducing the impact of water flow on components and increasing service life.

[0020] 3. The present invention relates to a condensate pump, which connects the pump cover and the sealing cavity of the pump body through an axial interference fit, thereby enhancing the sealing effect between the pump body and the pump cover, stabilizing the pressure difference between the inside and outside of the pump cavity, increasing the drainage efficiency of the motor, and solving the problem of motor leakage and reduced efficiency caused by sealing problems in the prior art. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is an exploded view of the condensate pump of this utility model; Figure 2 This is a cross-sectional view of a condensate pump; Figure 3 This is a schematic diagram of the pump cover structure; Figure 4 This is a schematic diagram of the pump body. Figure 5 This is a partial cross-sectional view of the condensate pump.

[0023] In the picture: 1. Pump body; 11. Outlet; 12. Annular groove; 13. Screw post; 2. Pump cover; 21. Inlet; 22. Clip; 23. Screw plate; 3. Electric motor; 4. Impeller; 5. First guide section; 51. First guide channel; 51a. Longitudinal end of the first guide channel; 51b. Lateral end of the first guide channel; 6. Second guide section; 61. Guide wall; 61a. Longitudinal end of guide wall; 61b. Lateral end of guide wall; 62. Second guide groove; 7. Sealing gasket. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 4 As shown, a condensate pump includes a pump body 1 and a pump cover 2. The pump body 1 has an outlet 11, and the pump cover 2 has an inlet 21. After the pump cover 2 is installed on the pump body 1, it forms a cavity connecting the inlet 21 and the outlet 11. A motor 3 is installed inside the pump body 1, and an impeller 4 is connected to the motor 3. The impeller 4 enters the cavity and corresponds to the inlet 21. Water flows in through the inlet 21 and flows along the cavity to the outlet 11 under the action of the impeller 4. Other components of the condensate pump are not directly related to the inventive concept of this application and will not be described in detail here.

[0028] Specifically, the pump body 1 is provided with a first guide section 5, and the pump cover 2 is provided with a second guide section 6. The first guide section 5 and the second guide section 6 are located on both sides of the outlet 11; the water flowing into the cavity from the inlet 21 is guided and gathered by the first guide section 5 and the second guide section 6 before flowing to the outlet 11. When the water flows along the cavity, the first guide section 5 and the second guide section 6 form a double guide for the water flow, which causes the water flow to form a gathering effect and flow in a specific direction to the outlet 11 before being discharged, thus optimizing the water flow direction and improving the working efficiency of the pump body 1.

[0029] Preferably, the first guide section 5 extends in an arc shape from the upper end face of the pump body 1 toward the outlet 11, and the second guide section 6 extends in an arc shape from the lower end face of the pump cover 2 toward the outlet 11. By using the longitudinally arc-shaped guide section, the flow path of the water flow can be lengthened, and the water flow velocity can be optimized.

[0030] Specifically, the first guide section 5 is a first guide groove 51 located on the upper end face of the pump body 1. The first guide groove 51 extends in an arc shape from the upper end face of the pump body 1 toward the outlet 11. Since the width of the first guide groove 51 gradually decreases in the lateral direction, the water flow will be further concentrated under the action of the side wall of the first guide groove 51 when it passes through the first guide groove 51, thus optimizing the flow direction of the water.

[0031] Preferably, the lateral width of the first guide channel 51 gradually decreases from the upper end face of the pump body 1 toward the outlet 11. The longitudinal end 51a of the first guide channel extends to the outlet 11, and the lateral end 51b of the first guide channel extends to the outside of the impeller 4. This can shorten the height difference between the first guide channel 51 and the outlet 11, and prevent the liquid from forming turbulence at the outlet 11.

[0032] Specifically, the second guide section 6 includes a guide wall 61, and the inner side of the guide wall 61 forms a second guide groove 62 that extends in an arc shape from the lower end face of the pump cover 2 toward the outlet 11. The function of the second guide groove 62 is also to extend the flow path of the water flow and optimize the water flow velocity by utilizing the longitudinally arc-shaped guide section.

[0033] Preferably, the lateral width of the guide wall 61 gradually decreases from the lower end face of the pump cover 2 towards the outlet 11, while the longitudinal height of the guide wall 61 gradually increases from the lower end face of the pump cover 2 towards the outlet 11. Similarly, the guide wall 61, which tapers along the water flow direction, concentrates the water flow and optimizes its direction. Combined with the converging effect of the first guide channel 51, the water flow direction can be closer to the axial direction of the outlet 11, ensuring stable water flow.

[0034] Preferably, the lateral end 61b of the guide wall is far from the inlet 21, and the longitudinal end 61a of the guide wall is far from the outlet 11. This also shortens the height difference between the guide wall 61 and the outlet 11, preventing turbulence from forming at the outlet 11. Specifically, there is a gap between the outer side of the guide wall 61 and the inner wall of the pump cover 2.

[0035] In Example 2, based on Example 1, the arc radii of the first guide channel 51 and the second guide channel 62 are equal. With the first guide channel 51 and the second guide channel 62 having the same arc size, the flow resistance can be further reduced, the impact of water flow on components can be decreased, the guiding effect can be improved, and the service life of the condenser can be increased. In this example, the arc radius of the first guide channel 51 and the second guide channel 62 is 11-13 mm, preferably 12 mm. Of course, the specific values ​​can be adjusted according to the actual size of the condenser pump.

[0036] In Example 3, based on Example 2, an annular groove 12 is provided on the outer periphery of the pump body 1, and a sealing gasket 7 is provided inside the annular groove 12. The sealing surface of the pump cover 2 is inserted into the annular groove 12 and is interference-fitted with the sealing gasket 7. Preferably, the pump cover 2 is provided with a buckle 22 and a screw disc 23 on its circumference, and the pump body 1 has a screw post 13 corresponding to the screw disc 23. The buckle 22 is snapped onto the lower end face of the pump body 1, and the screw post 13 and the screw disc 23 are fastened together by screws.

[0037] In this embodiment, the sealing gasket 7 has an annular structure and a square cross-section. Its thickness H1 is 1.1-1.3 mm, preferably 1.2 mm. In this embodiment, the distance H2 between the sealing surface of the pump cover 2 and the sealing surface of the pump body 1 is 0.8-1 mm, preferably 0.9 mm. The compression of the sealing gasket 7 is (H1-H2) / H1×100%=9%-38%, preferably 25%. Of course, the specific values ​​can be adjusted according to the actual dimensions of the condensate pump.

[0038] The pump cover 2 and the sealing gasket 7 achieve a seal through an interference fit, strengthening the sealing effect between the pump body 1 and the pump cover 2. The two are then secured using both clips 22 and screws, further enhancing the overall sealing effect of the pump body 1, stabilizing the pressure difference between the inside and outside of the pump chamber, and increasing the pump's drainage efficiency.

[0039] In summary, the condensate pump of this invention utilizes the first and second guide sections located on both sides of the outlet to guide the water flow, directing the water flow to converge and flow in a specific direction, optimizing the control of the water flow direction, stabilizing the water flow, and achieving efficient operation of the pump body.

[0040] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A condensate pump, characterized in that, include: Pump body (1), the pump body (1) is provided with a first flow guide (5), and the pump body (1) has a water outlet (11). Pump cover (2), the pump cover (2) is provided with a second flow guide (6), the pump cover (2) has a water inlet (21), and the pump cover (2) is installed on the pump body (1) to form a cavity that connects the water inlet (21) and the water outlet (11); The first guide section (5) and the second guide section (6) are located on both sides of the outlet (11); the water flowing into the cavity from the inlet (21) is guided and gathered by the first guide section (5) and the second guide section (6) and then flows to the outlet (11).

2. The condensate pump according to claim 1, characterized in that, The first guide section (5) extends in an arc shape from the upper end face of the pump body (1) toward the outlet (11), and the second guide section (6) extends in an arc shape from the lower end face of the pump cover (2) toward the outlet (11).

3. The condensate pump according to claim 2, characterized in that, The first guide section (5) is a first guide groove (51) provided on the upper end face of the pump body (1). The first guide groove (51) extends in an arc shape from the upper end face of the pump body (1) toward the outlet (11).

4. The condensate pump according to claim 3, characterized in that, The first guide channel (51) gradually decreases in width in the direction from the upper end of the pump body (1) toward the outlet (11).

5. The condensate pump according to claim 4, characterized in that, The longitudinal end (51a) of the first guide channel extends to the outlet (11), and the transverse end (51b) of the first guide channel extends to the outside of the impeller (4).

6. The condensate pump according to claim 3, characterized in that, The second guide section (6) includes a guide wall (61), and the inner side of the guide wall (61) forms a second guide groove (62) that extends in an arc shape from the lower end face of the pump cover (2) toward the outlet (11).

7. The condensate pump according to claim 6, characterized in that, The guide wall (61) gradually decreases in lateral width from the lower end face of the pump cover (2) toward the outlet (11), and gradually increases in longitudinal height from the lower end face of the pump cover (2) toward the outlet (11).

8. The condensate pump according to claim 7, characterized in that, The transverse end (61a) of the guide wall is away from the inlet (21), and the longitudinal end (61b) of the guide wall is away from the outlet (11).

9. The condensate pump according to claim 8, characterized in that, There is a gap between the outer side of the guide wall (61) and the inner wall of the pump cover (2).

10. The condensate pump according to claim 6, characterized in that, The first guide groove (51) and the second guide groove (62) have the same arc radius.

11. The condensate pump according to any one of claims 1-10, characterized in that, The pump body (1) has an annular groove (12) on its outer periphery, and a sealing gasket (7) is provided in the annular groove (12). The sealing surface of the pump cover (2) is inserted into the annular groove (12) and is press-fitted with the sealing gasket (7).

12. The condensate pump according to claim 11, characterized in that, The pump cover (2) is provided with a buckle (22) and a screw disc (23) in the circumferential direction. The pump body (1) has a screw post (13) corresponding to the screw disc (23). The buckle (22) is snapped onto the lower end face of the pump body (1). The screw post (13) and the screw disc (23) are fastened together by screws.

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