Thin pump
By using a thin motor and impeller sharing a shaft in the pump, eliminating the coupling, the problems of increased pump size and damage risk are solved, achieving a compact pump design and protection against liquid accumulation.
Patent Information
- Application Number
- CN202520630832.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-03
- Filing Date
- 2025-04-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-07
AI Technical Summary
In existing pumps, the motor and impeller are connected by a coupling, which poses a risk of damage and increases the pump's size, making it inconvenient to use.
The pump uses a thin motor and impeller sharing the same shaft, eliminating the coupling. A leak detection device and a drain plug are installed in the bracket, reducing the pump's axial length and volume while providing liquid detection and discharge functions.
This technology reduces the size of the pump, lowers space requirements, and prevents liquid accumulation from damaging the motor through leak detection and drainage functions.
Smart Images

Figure CN223868186U_ABST
Abstract
Description
Technical Field
[0001] This utility model proposes a pump, and more particularly a thin-profile pump. Background Technology
[0002] Pumps typically consist of a motor and an impeller. Since motors are often commercially available and cannot be directly mounted on the impeller, existing pumps typically connect the motor and impeller via a coupling. However, this coupling is susceptible to damage over long-term operation, and its installation increases the pump's size and required space. Furthermore, the use of relatively large motors in existing pumps also necessitates a larger space, leading to inconvenience in operation.
[0003] Therefore, proposing a better improvement plan is an urgent problem that the industry needs to solve. Utility Model Content
[0004] This invention proposes a thin-profile pump to solve the problem that in existing pumps, the motor and impeller are connected by a coupling, which not only poses a risk of coupling damage but also increases the pump's size and required space, causing inconvenience in terms of usage space.
[0005] To achieve the above objectives, this utility model proposes a thin-film pump, which has the following characteristics:
[0006] A shell having:
[0007] One import and one export;
[0008] At least one impeller is disposed within the housing;
[0009] A thin motor is connected to the housing, and the axial length of the thin motor is less than the axial length of the housing;
[0010] A shaft is disposed in the thin motor and protrudes from the thin motor, and passes through the at least one impeller in the housing, so that the at least one impeller can be driven to rotate by the thin motor and the shaft.
[0011] As mentioned above, the thin-profile pump also has the following characteristics:
[0012] A bracket is disposed between the thin motor and the housing, and the shaft passes through the bracket so that the housing and the thin motor can be located on the same axis.
[0013] As described above, in the thin-profile pump, the bracket surrounds the shaft and has:
[0014] A row of drain plugs is detachably mounted on the bottom side of the bracket, and the liquid in the bracket can be drained by opening and closing the drain plugs;
[0015] A leakage detection device is installed on the bottom side of the bracket and is used to detect whether there is accumulated liquid in the bracket.
[0016] As described above, in the thin-profile pump, the bracket surrounds the shaft and has:
[0017] A baffle is disposed in the bracket and fits against the inner wall of the bracket, and the shaft passes through the baffle;
[0018] A sealing ring is provided between the baffle and the shaft core.
[0019] As described above, in the thin-profile pump, the bracket has:
[0020] A tube is disposed between the thin motor and the housing, and surrounds the shaft;
[0021] A motor fitting portion is provided around the outer annular surface of the sleeve near the end of the thin motor, and extends outward from the outer annular surface of the sleeve in a direction parallel to the radial direction of the sleeve; the motor fitting portion can fit around and adhere to the side of the thin motor facing the housing near the outer periphery.
[0022] A housing fitting portion is disposed around the outer circumferential surface of the sleeve near one end of the housing, and extends outward from the outer circumferential surface of the sleeve in a direction parallel to the radial direction of the sleeve; the housing fitting portion can be fitted around the housing near the outer periphery on the side of the housing facing the thin motor.
[0023] As described above, in the thin-profile pump, the bracket has:
[0024] A support member, which is connected to the sleeve;
[0025] A base plate, which is connected to the sleeve by the support member, and is used to mount the thin pump on a plane.
[0026] As described above, in the thin-profile pump, the support member has:
[0027] Two connecting parts are connected to the sleeve, and the drain plug is disposed between the two connecting parts.
[0028] The thin-profile pump described above has the following characteristics:
[0029] An outlet portion is disposed on the housing and communicates with the outlet of the housing and the outside; the outlet portion has:
[0030] An axial outlet wall is parallel to the axial direction of the outlet portion and surrounds the outlet.
[0031] A radial outlet wall is provided around the outer annular surface of the axial outlet wall and extends outward from the outer annular surface of the axial outlet wall in a direction parallel to the radial direction of the outlet portion;
[0032] Several outlet perforations penetrate the radial outlet wall along the axial direction of the outlet portion;
[0033] An inlet portion is disposed on the housing and communicates with the inlet of the housing and the outside; the inlet portion has:
[0034] An axial inlet wall is provided, which is parallel to the axis of the inlet portion and surrounds the inlet.
[0035] A radial inlet wall is disposed around the outer annular surface of the axial inlet wall and extends outward from the outer annular surface of the axial inlet wall in a radial direction parallel to the inlet portion;
[0036] Several inlet perforations penetrate the radial inlet wall along the axial direction of the inlet portion.
[0037] The thin-profile pump described above has the following characteristics:
[0038] A cooling fan is located at the end of the thin motor away from the housing.
[0039] Fluid enters the internal space of the housing through the inlet. The slim motor then drives the impeller via its shaft, guiding the fluid to the outlet of the housing, from which it flows out. The advantages of this invention are that the slim motor and impeller share the same shaft, eliminating the need for a coupling and reducing the axial length of the motor, thereby reducing the overall axial length and volume of the slim pump and the space required for its installation. Furthermore, the invention features a leakage detection device and a drain plug on the bracket. When the leakage detection device detects liquid in the bracket, it notifies the user to perform maintenance. The user can then open the drain plug to drain the accumulated liquid, preventing it from accumulating in the bracket or seeping into the slim motor and causing damage. Attached Figure Description
[0040] Figure 1 This is a perspective view of the first embodiment of the present utility model;
[0041] Figure 2 This is a perspective view of the first embodiment of the present invention from another angle;
[0042] Figure 3 This is a side view of the first embodiment of the present invention;
[0043] Figure 4 This is an exploded view of the first embodiment of the present invention;
[0044] Figure 5 This is an exploded view of the first embodiment of the present invention from another angle;
[0045] Figure 6 This is a cross-sectional view of the first embodiment of the present invention;
[0046] Figure 7 This is a perspective view of the second embodiment of the present invention;
[0047] Figure 8 This is a perspective view of the second embodiment of the present invention from another angle;
[0048] Figure 9 This is a side view of the second embodiment of the present invention;
[0049] Figure 10 This is a perspective view of the third embodiment of the present utility model;
[0050] Figure 11 This is an exploded view of the third embodiment of the present invention;
[0051] Figure 12 This is a cross-sectional view of the third embodiment of the present invention;
[0052] Figure 13 This is a partial cross-sectional view of a bracket according to the third embodiment of the present invention. Detailed Implementation
[0053] Please refer to Figures 1 to 4 This invention provides a thin-profile pump comprising a housing 10, a thin-profile motor 20, a shaft 30, a bracket 40, an outlet 50, and an inlet 60. In other embodiments, the bracket 40 may be omitted.
[0054] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5The housing 10 has an inlet 11, an outlet 12, and at least one impeller 13. The inlet 11 and outlet 12 each penetrate one of the walls of the housing 10 and are interconnected. The impeller 13 is disposed within the housing 10. A thin motor 20 is connected to the housing 10, and the axial length of the thin motor 20 is less than the axial length of the housing 10. A shaft 30 is disposed within the thin motor 20, protrudes from the thin motor 20, and passes through the impeller 13 of the housing 10, allowing the impeller 13 to rotate under the drive of the thin motor 20 and the shaft 30. Therefore, without using a coupling, the thin motor 20 of this invention can directly drive the impeller 13 to rotate, reducing the space required for installing a coupling.
[0055] Please refer to Figure 1 and Figure 2 A bracket 40 is disposed between the thin motor 20 and the housing 10, and a shaft core 30 passes through the bracket 40, enabling the housing 10 and the thin motor 20 to be located on the same axis. Specifically, the bracket 40 has a sleeve 41, a motor fitting portion 42, and a housing fitting portion 43. The sleeve 41 is disposed between the thin motor 20 and the housing 10 and surrounds the shaft core 30. The motor fitting portion 42 is disposed around the outer annular surface of the sleeve 41 near the end of the thin motor 20 and extends outward from the outer annular surface of the sleeve 41 in a direction parallel to the radial direction of the sleeve 41. The motor fitting portion 42 can be fitted around the side of the thin motor 20 facing the housing 10 near its outer periphery. The housing fitting portion 43 is disposed around the outer annular surface of the sleeve 41 near the end of the housing 10 and extends outward from the outer annular surface of the sleeve 41 in a direction parallel to the radial direction of the sleeve 41. The housing fitting portion 43 can be attached around the outer periphery of the side of the housing 10 facing the thin motor 20. In this way, the bracket 40 can separate the thin motor 20 from the housing 10 and lift the housing 10 so that the housing 10 and the thin motor 20 can be located on the same axis.
[0056] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 In the first embodiment, the outlet portion 50 is disposed on the housing 10 and communicates with the outlet 12 of the housing 10 and the outside. The outlet portion 50 has an axial outlet wall surface 51, a radial outlet wall surface 52, and a plurality of outlet through holes 53. The axial outlet wall surface 51 is parallel to the axial direction of the outlet portion 50 and surrounds the outlet 12. The radial outlet wall surface 52 is disposed around the outer annular surface of the axial outlet wall surface 51 and extends outward from the outer annular surface of the axial outlet wall surface 51 in a direction parallel to the radial direction of the outlet portion 50. The outlet through holes 53 penetrate the radial outlet wall surface 52 along the axial direction of the outlet portion 50, thereby allowing the user to use screws or other fasteners inserted through the outlet through holes 53 to lock the interface mating with the outlet portion 50 onto the outlet portion 50.
[0057] An inlet portion 60 is disposed on the housing 10 and communicates with the inlet 11 of the housing 10 and the outside. The inlet portion 60 has an axial inlet wall surface 61, a radial inlet wall surface 62, and a plurality of inlet through holes 63. The axial inlet wall surface 61 is parallel to the axial direction of the inlet portion 60 and surrounds the inlet 11. The radial inlet wall surface 62 is disposed around the outer annular surface of the axial inlet wall surface 61 and extends outward from the outer annular surface of the axial inlet wall surface 61 in a direction parallel to the radial direction of the inlet portion 60. The inlet through holes 63 penetrate the radial inlet wall surface 62 along the axial direction of the inlet portion 60, thereby allowing the user to use screws or other fasteners to pass through the inlet through holes 63 to lock the interface mating with the inlet portion 60 onto the inlet portion 60.
[0058] Please refer to Figures 7 to 9 The technical features of the second embodiment of this utility model are similar to those of the first embodiment, except that in the second embodiment, both the outlet 50 and the inlet 60 are pipes, and the cross-sections of the pipes in both the outlet 50 and the inlet 60 are polygonal. Specifically, the inner walls of both the outlet 50 and the inlet 60 are provided with threads (not shown in the figure). This allows the user to screw the pipe to be installed onto the outlet 50 and the inlet 60, and then use a tool to lock it in place.
[0059] Please refer to Figures 10 to 13 The technical features of the third embodiment of this utility model are similar to those of the first embodiment, except that the bracket 40A also has a support member 44, a base plate 45, a drain plug 46, a leakage detection device 47, a baffle 48, and a sealing ring 49, and the thin pump further includes a cooling fan 70. The support member 44 is connected to the sleeve 41 and has two connecting parts 441. The two connecting parts 441 are spaced apart and connected to the sleeve 41. At the same time, the distance between the end of the sleeve 41 away from the two connecting parts 441 and the shaft core 30 is greater than the distance between the outer surface of the thin motor 20 and the shaft core 30, so that the two connecting parts 441 can support the thin pump of this utility model on a plane. Specifically, even when the sizes of the housing 10 and the thin motor 20 are inconsistent, the support member 44 can support the housing 10 and the thin motor 20 so that the shaft core 30 can be parallel to the plane. The base plate 45 can be connected to the sleeve 41 via the support member 44 and is used to mount the thin pump on a plane.
[0060] A drain plug 46 is detachably disposed on the bottom side of the bracket 40A. Specifically, in this embodiment, the drain plug 46 is detachably inserted through the bottom side of the sleeve 41 and located between the two connecting portions 441. The user can drain the liquid accumulated in the bracket 40A by opening and closing the drain plug 46. A leak detection device 47 is disposed on the bottom side of the bracket 40A. Specifically, in this embodiment, the drain plug 46 is detachably inserted through the bottom side of the sleeve 41. The leak detection device 47 is used to detect whether there is accumulated liquid in the bracket 40A. When the leak detection device 47 detects that there is accumulated liquid in the bracket 40A, it can notify the user to open the drain plug 46 to drain the accumulated liquid in the bracket 40A.
[0061] Please refer to Figure 13 A baffle 48 is disposed within the bracket 40A and conforms to the inner wall surface of the bracket 40A, with the shaft core 30 penetrating through the baffle 48. In this embodiment, a drain plug 46 is disposed between the baffle 48 and the housing 10. Therefore, when liquid seeps from the housing 10 into the bracket 40A, it will be blocked by the baffle 48 and will not directly contact the motor 20. A sealing ring 49 is sealed between the baffle 48 and the shaft core 30, so even if the user does not immediately open the drain plug 46 to drain the accumulated liquid, the liquid will be sealed between the baffle 48 and the housing 10 and will not contact the thin motor 20, thus preventing damage to the thin motor 20.
[0062] The cooling fan 70 is located at the end of the thin motor 20 away from the housing 10 and is used to assist in the heat dissipation of the thin motor 20.
[0063] Fluid enters the internal space of housing 10 from inlet 11 through inlet 60. The slim motor 20 then drives impeller 13 via shaft 30, guiding the fluid to outlet 12 of housing 10 and out through outlet 50. When fluid leaks from impeller 13 near the slim motor 20, it accumulates in bracket 40. A leak detection device 47 located at the bottom of bracket 40 detects the liquid and notifies the user to open drain plug 46 to drain it. If the user does not immediately open drain plug 46 to drain the liquid, the slim motor 20 can also control the liquid between baffle 48 and housing 10, preventing immediate contact and reducing the risk of damage.
[0064] The advantages of this invention are that the slim motor 20 and impeller 13 share the same shaft core 30, eliminating the need for a coupling and reducing the axial length of the slim motor 20. This reduces the overall axial length of the slim pump and its volume, thus lowering the space required for its placement. Furthermore, the bracket 40 is equipped with a leakage detection device 47 and a drain plug 46. When the leakage detection device 47 detects liquid in the bracket 40, it notifies the user to perform maintenance. The user can then open the drain plug 46 to drain the accumulated liquid from the bracket 40, preventing liquid from accumulating in the bracket 40 or seeping into the slim motor 20 and causing damage.
[0065] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.
Claims
1. A thin type pump characterized by, Having: a housing having: an inlet and an outlet; at least one impeller disposed in the housing; a thin motor connected to the housing, and the length of the thin motor in the axial direction is less than the length of the housing in the axial direction; a shaft core disposed in the thin motor and protruding from the thin motor and penetrating the at least one impeller of the housing, so that the at least one impeller can be driven to rotate by the thin motor and the shaft core.
2. The thin type pump according to claim 1, wherein Also having: a bracket disposed between the thin motor and the housing, and the shaft core penetrates the bracket, so that the housing and the thin motor can be located on the same axis.
3. The thin type pump according to claim 2, wherein The bracket surrounds the shaft core, and has: a drain plug detachably disposed on the bottom side of the bracket, and liquid in the bracket can be drained by opening the drain plug; a liquid leakage detection device disposed on the bottom side of the bracket, and used to detect whether there is accumulated liquid in the bracket.
4. The thin-type pump according to claim 2, wherein The bracket has: a sleeve disposed between the thin motor and the housing and surrounding the shaft core; a motor fitting portion disposed around the outer ring surface of the sleeve near the end of the thin motor, and extending outward from the outer ring surface of the sleeve in a direction parallel to the radial direction of the sleeve; the motor fitting portion can be fitted around the thin motor towards the side surface of the housing near the outer periphery; a housing fitting portion disposed around the outer ring surface of the sleeve near the end of the housing, and extending outward from the outer ring surface of the sleeve in a direction parallel to the radial direction of the sleeve; the housing fitting portion can be fitted around the housing towards the side surface of the thin motor near the outer periphery.
5. The thin type pump according to claim 3, wherein The bracket has: a sleeve disposed between the thin motor and the housing and surrounding the shaft core, and the drain plug is detachably penetrated on the sleeve; a motor fitting portion disposed around the outer ring surface of the sleeve near the end of the thin motor, and extending outward from the outer ring surface of the sleeve in a direction parallel to the radial direction of the sleeve; the motor fitting portion can be fitted around the thin motor towards the side surface of the housing near the outer periphery; a housing fitting portion disposed around the outer ring surface of the sleeve near the end of the housing, and extending outward from the outer ring surface of the sleeve in a direction parallel to the radial direction of the sleeve; the housing fitting portion can be fitted around the housing towards the side surface of the thin motor near the outer periphery.
6. The thin-type pump according to claim 5, wherein The bracket has: a support connected to the sleeve; a bottom plate connected to the sleeve by the support, and used to dispose the thin type pump on a plane.
7. The thin-type pump according to claim 6, wherein The support has: two connecting portions connected to the sleeve, and the drain plug is disposed between the two connecting portions.
8. The thin-type pump according to claim 2, wherein The bracket surrounds the shaft core, and has: a baffle disposed in the bracket and fitted to the inner wall surface of the bracket, and the shaft core penetrates the baffle; a sealing ring sealingly disposed between the baffle and the shaft core.
9. The thin type pump according to any one of claims 1 to 8, wherein Having: an outlet portion disposed on the housing and communicating the outlet of the housing with the outside; the outlet portion has: an axial outlet wall surface parallel to the axial direction of the outlet portion, and the axial outlet wall surface surrounds the outlet; a radial outlet wall surface surrounding an outer annular surface of the axial outlet wall surface and extending outwardly from the outer annular surface of the axial outlet wall surface in a direction parallel to a radial direction of the outlet portion; a plurality of outlet perforations penetrating the radial outlet wall surface in an axial direction of the outlet portion; an inlet portion disposed on the housing and communicating the inlet of the housing with the ambient; the inlet portion having: an axial inlet wall surface parallel to an axial direction of the inlet portion and surrounding the inlet; a radial inlet wall surface surrounding an outer annular surface of the axial inlet wall surface and extending outwardly from the outer annular surface of the axial inlet wall surface in a direction parallel to a radial direction of the inlet portion; a plurality of inlet perforations penetrating the radial inlet wall surface in an axial direction of the inlet portion.
10. The thin type pump according to any one of claims 1 to 8, wherein having: a heat dissipation fan disposed on the thin motor away from the housing.