Integrated centrifugal pump

Abstract

An integrated centrifugal pump comprises a pump body and a pump head assembled on the pump body, a coil is arranged in the pump body, a groove used for embedding a movable core is concavely formed in the middle of the upper end face of the pump body, the pump head covers the upper end of the pump body, an impeller is arranged at the upper end of the movable core, and the pump head is provided with a pump cavity, a water inlet and a water outlet. The impeller comprises an upper blocking face, a hole is formed in the middle of the upper blocking face, and fan blades are convexly arranged on the lower end face of the upper blocking face. According to the utility model, the water inlet part is divided by the upper blocking surface, the impeller blades are separated from the water inlet part at the upper end, and noise caused by impact of disordered water flow is avoided. Inlet water is separated and comprises high-speed water flow flowing through the blades and low-speed water flow flowing through the gaps. The slow-flow-speed water flow and the high-flow-speed water flow are separated, so that the water flow is smoother and The shaft bracket extends into the opening of the upper blocking surface to reduce water flow obstruction at the opening, so that the water flow section is increased and the water flow velocity is reduced.

Description

Technical Field

[0001] The utility model relates to a pump, in particular to an integrated centrifugal pump. Background Art

[0002] Existing pumps are usually composed of impellers and motors. Water flows through the impeller blades and is driven by the blades to generate centrifugal force, which causes the water to be thrown around and flow out from the outlet. However, during the rotation of the traditional impeller, the water flow is thrown out at will and collides with the incoming water flow, which is easy to disturb, thus generating noise. The pump body noise will become the main source of noise in household appliances, so the noise reduction of centrifugal pumps is particularly important. The noise emitted by the pump body will greatly affect the product quality. Utility Model Content

[0003] In order to solve the noise problem of the existing pump body, the utility model provides an integrated centrifugal pump, which can well guide the water flow in the pump head to avoid excessive noise.

[0004] The technical solution adopted by the utility model is: an integrated centrifugal pump, including a pump body and a pump head assembled on the pump body, a coil is arranged in the pump body, a groove for embedding a moving core is concavely arranged in the middle of the upper end surface of the pump body, a pump head cover is arranged at the upper end of the pump body, an impeller is arranged at the upper end of the moving core, the pump head is provided with a pump cavity and a water inlet and a water outlet, and is characterized in that: a water inlet extends from the middle of the pump head, the impeller includes an upper baffle surface, a hole is arranged in the middle of the upper baffle surface, and a fan blade is convexly arranged on the lower end surface of the upper baffle surface.

[0005] As one of the preferred solutions for an integrated centrifugal pump, the opening of the upper baffle surface is folded upward and extends into the water inlet, and a gap is provided between the upper baffle surface and the pump head.

[0006] As one of the preferred solutions of an integrated centrifugal pump, it also includes a lower baffle surface attached to the lower end of the fan blade, and the lower end of the lower baffle surface is connected and fixed to the moving core.

[0007] As one of the preferred solutions of an integrated centrifugal pump, it also includes a shaft seat, a rotating shaft is passed through the middle of the moving core, and a shaft seat for limiting the rotating shaft is provided in the groove.

[0008] As one of the preferred solutions of an integrated centrifugal pump, it also includes a shaft frame, the upper end of the shaft frame is fixed at the water inlet of the pump head, and the lower end of the shaft frame is provided with a shaft sleeve sleeved on the upper end of the rotating shaft. The upper end surface of the shaft sleeve is located between the upper stop surface and the lower stop surface.

[0009] As one of the preferred solutions for an integrated centrifugal pump, the shaft bracket extends into the opening of the upper retaining surface, and the upper end surface of the shaft sleeve is conical.

[0010] As one of the preferred solutions for an integrated centrifugal pump, a flow detection device is also provided at the water inlet. The flow detection device includes a Hall sensor attached to the outside of the water inlet, a magnetic cage embedded in the water inlet, a magnetic impeller provided in the magnetic cage, and a flow guide insert located at the front end of the magnetic cage.

[0011] The beneficial effects of the utility model are as follows: 1. The upper baffle is used to divide the water inlet part, separating the impeller blades from the upper water inlet, avoiding the noise caused by the chaotic impact of the water flow. 2. The water inlet is separated, including the fast water flow flowing through the blades and the slow water flow flowing through the gap; the slow flow rate and the fast flow rate are separated to make the water flow smoother and more organized. 3. The shaft bracket extends into the opening of the upper baffle surface to reduce the water flow obstruction at the opening, thereby increasing the water flow cross section and reducing the water flow velocity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model.

[0013] Figure 2 This is an exploded view of the utility model.

[0014] Figure 3 It is a cross-sectional view of the utility model.

[0015] Among them: 1. pump body; 2. pump head; 3. coil; 4. moving core; 11. groove; 5. impeller; 21. pump chamber; 22. water inlet; 23. water outlet; 51. upper baffle; 52. opening; 53. fan blade; 54. lower baffle; 61. shaft seat; 62. rotating shaft; 63. shaft frame; 64. shaft sleeve; 71. Hall sensor; 72. magnetic cage; 73. magnetic impeller; 74. guide insert. DETAILED DESCRIPTION

[0016] The utility model is further described below with reference to the specific drawings. All technical features are described. It should be known that any third party may cancel some technical features in order to circumvent them. The structures listed in this embodiment can be canceled according to actual conditions. Therefore, the listed technical features are not all necessary technical features. The scope of protection of the utility model shall be based on the claims. Other embodiments of the utility model can be adjusted according to actual needs. Not repeating them here does not mean giving up similar solutions.

[0017] like Figures 1 to 3As shown: an integrated centrifugal pump, including a pump body 1 and a pump head 2 assembled on the pump body 1, a coil 3 is arranged inside the pump body 1, a groove 11 for embedding a moving core 4 is arranged in the middle of the upper end surface of the pump body 1, the pump head 2 cover is arranged on the upper end of the pump body 1, an impeller 5 is arranged on the upper end of the moving core 4, the pump head 2 is provided with a pump cavity 21 and a water inlet 22 and a water outlet 23, and is characterized in that: a water inlet 22 extends from the middle of the pump head 2, the impeller 5 includes an upper baffle 51, a hole 52 is arranged in the middle of the upper baffle 51, and a fan blade 53 is convexly arranged on the lower end surface of the upper baffle 51. The upper baffle 51 is used to divide the water inlet part, and the fan blade 53 of the impeller 5 is separated from the upper water inlet to avoid the noise caused by the chaotic impact of the water flow.

[0018] In this embodiment, the opening 52 of the upper retaining surface 51 is folded upward and extends into the water inlet 22, and a gap is provided between the upper retaining surface and the pump head 2. The water inlet 22 in the middle of the impeller 5, i.e., the opening 52, is folded upward and connected to the water inlet 22 of the pump head 2, and the incoming water is separated, including the water flowing through the lower end of the impeller 5 and the water flowing through the gap. The slow flow rate and the fast flow rate water flow are separated to make the water flow smoother and more orderly.

[0019] In this embodiment, a lower stop surface 54 is also provided at the lower end of the fan blade 53, and the lower end of the lower stop surface 54 is connected and fixed to the dynamic core 4. The lower stop surface 54 is provided to further prevent water from overflowing from the lower end when the blade is swung, and further regulate the water flow.

[0020] In this embodiment, the lower end of the moving core 4 is fixedly arranged, and also includes a shaft seat 61. A rotating shaft 62 is passed through the middle of the moving core 4, and a shaft seat 61 for limiting the rotating shaft 62 is arranged in the groove 11. The upper end of the moving core 4 is fixedly arranged, and also includes a shaft frame 63. The upper end of the shaft frame 63 is fixed at the water inlet 22 of the pump head 2, and the lower end of the shaft frame 63 is provided with a shaft sleeve 64 sleeved on the upper end of the rotating shaft 62.

[0021] In this embodiment, the water flow obstruction at the opening 52 is further reduced, thereby increasing the water flow cross section and reducing the water flow velocity. The shaft frame 63 extends into the opening 52 of the upper blocking surface 51, and the upper end surface of the shaft sleeve 64 is conical. The conical slope is located in the middle of the fan blade 53 to guide the water flow to the surrounding of the blade.

[0022] In this embodiment, a flow detection device is also provided on the centrifuge, and a flow detection device is also provided at the water inlet 22. The flow detection device includes a Hall sensor 71 attached to the outside of the water inlet 22, a magnetic cage 72 embedded in the water inlet 22, a magnetic impeller 735 is provided in the magnetic cage 72, and also includes a guide insert 74 located at the front end of the magnetic cage 72.

[0023] It should be noted that, in this application, relational terms such as "first" and "second", "upper" and "lower", etc. are only used to separate one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprises", or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or device.

Claims

1. An integrated centrifugal pump, comprising a pump body (1) and a pump head (2) mounted on the pump body (1), wherein a coil (3) is arranged inside the pump body (1), a groove (11) for embedding a moving core (4) is concavely arranged in the middle of the upper end surface of the pump body (1), the pump head (2) is covered on the upper end of the pump body (1), an impeller (5) is arranged on the upper end of the moving core (4), the pump head (2) is provided with a pump chamber (21) and a water inlet (22) and a water outlet (23), and is characterized in that: A water inlet (22) extends from the middle of the pump head (2), and the impeller (5) comprises an upper baffle surface (51). An opening (52) is provided in the middle of the upper baffle surface (51), and a fan blade (53) is protruding from the lower end surface of the upper baffle surface (51).

2. The integrated centrifugal pump according to claim 1, characterized in that: The upper baffle surface (51) is folded upward at the opening (52) and extends into the water inlet (22), and a gap is provided between the upper baffle surface and the pump head (2).

3. The integrated centrifugal pump according to claim 1, characterized in that: It also includes a lower blocking surface (54) attached to the lower end of the fan blade (53), and the lower end of the lower blocking surface (54) is connected and fixed to the moving core (4).

4. The integrated centrifugal pump according to any one of claims 1 to 3, characterized in that: It also comprises a shaft seat (61), a rotating shaft (62) is passed through the middle of the moving core (4), and a shaft seat (61) for limiting the rotating shaft (62) is provided in the groove (11).

5. The integrated centrifugal pump according to claim 4, characterized in that: It also comprises a shaft frame (63), the upper end of which is fixed at the water inlet (22) of the pump head (2), and the lower end of which is provided with a shaft sleeve (64) sleeved on the upper end of the rotating shaft (62).

6. The integrated centrifugal pump according to claim 5, characterized in that: The shaft bracket (63) extends into the opening (52) of the upper stop surface (51), and the upper end surface of the shaft sleeve (64) is conical.

7. The integrated centrifugal pump according to claim 6, characterized in that: The upper end surface of the shaft sleeve is located between the upper stop surface and the lower stop surface.

8. The integrated centrifugal pump according to claim 1, characterized in that: A flow detection device is also provided at the water inlet (22), the flow detection device comprising a Hall sensor (71) attached to the outside of the water inlet (22), a magnetic cage (72) embedded in the water inlet (22), a magnetic impeller (73) (5) provided in the magnetic cage (72), and a flow guide insert (74) located at the front end of the magnetic cage (72).

Images