Shielding electric pump stator end heat dissipation structure device
By designing a quick-installation heat dissipation box structure, combined with cooling pipes and heat sinks, the problems of cumbersome installation and poor heat dissipation effect of shielded pump heat dissipation devices are solved, achieving efficient heat dissipation and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN JINSHI PUMP CO LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-06-09
AI Technical Summary
The existing cooling devices for canned pumps are cumbersome to install, time-consuming, and have poor heat dissipation effects, failing to effectively reduce stator temperature.
A heat dissipation structure for the stator end of a shielded electric pump was designed, including a pump body, a heat sink, cooling pipes, a cooling fan, and a snap-fit assembly. The heat sink can be quickly installed and disassembled through the cooperation of a slider and a support block, and the heat dissipation efficiency is improved by the design of the cooling pipes and heat sinks.
It enables quick installation and disassembly of the heat sink, improves heat dissipation efficiency, and extends the service life of the canned pump.
Smart Images

Figure CN224339218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shielded pump technology, and in particular to a heat dissipation structure device for the stator end of a shielded electric pump. Background Technology
[0002] Water pumps are needed for the transportation of liquids. During operation, water pumps convert the mechanical energy of the motor into the energy of the fluid, enabling the liquid to be transported to higher places. They are widely used in various industries today. As a type of water pump, the canned motor pump is a centrifugal sealless pump. Both the pump and the drive motor are sealed in a pressure vessel filled with the pumped medium. This pressure vessel has only a static seal. This structure eliminates the rotating shaft sealing device of traditional centrifugal pumps, thus achieving complete leak-free operation.
[0003] When a canned motor pump is working, it generates heat. Although the pumping medium inside the pump carries away some of the heat, it is not enough to completely dissipate the heat, so a heat dissipation device is needed. Existing heat dissipation devices are cumbersome to install, time-consuming, and cannot be installed and put into operation quickly. Moreover, their heat dissipation effect is poor and they cannot effectively reduce the temperature of the canned motor pump stator. Therefore, a heat dissipation structure device for the stator end of a canned motor pump is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a shielded electric pump stator end heat dissipation structure device, which aims to improve the problem of the heat dissipation device in the prior art being unable to be installed quickly and taking a long time.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A heat dissipation structure for the stator end of a shielded electric pump includes a pump body, an outlet fixedly connected to one end of the pump body, an inlet fixedly connected to one end of the pump body, a base fixedly connected to the top of the pump body, a heat dissipation box installed on the top of the base, a cooling fan fixedly connected to the top of the heat dissipation box, a cooling pipe fixedly connected to one end of the pump body, the other end of the cooling pipe fixedly connected to the other end of the pump body, a snap-fit assembly installed on one side of the base, and a sliding assembly installed on the other side of the base.
[0007] The snap-fit assembly includes a fixing piece, which is fixedly connected to one side of the heat sink. A pin hole is provided inside the fixing piece. A fixing block is fixedly connected to one end of the base. A housing is fixedly connected inside the fixing block. A pin is slidably connected inside the housing. The pin is inserted into the pin hole.
[0008] As a further description of the above technical solution:
[0009] A heat sink is fixedly connected to the top of the base, the cooling pipe is located inside the heat sink, and the cooling fan is located on top of the heat sink;
[0010] As a further description of the above technical solution:
[0011] Two support blocks are fixedly connected to both sides of the base, and each of the two support blocks has a sliding groove inside. Two sliders are fixedly connected to both sides of the heat sink, and the two sliders are slidably connected inside the sliding groove.
[0012] As a further description of the above technical solution:
[0013] The heat sink has mounting slots at both ends, and the cooling pipe is located inside the two mounting slots.
[0014] As a further description of the above technical solution:
[0015] One end of the pin is fixedly connected to a pull ring, which is located on the side away from the fixing piece;
[0016] As a further description of the above technical solution:
[0017] A baffle is fixedly connected to the middle of the pin, and a spring is sleeved on the outside of the pin. Both the baffle and the spring are located inside the outer shell.
[0018] As a further description of the above technical solution:
[0019] A mounting bracket is fixedly connected to the bottom of the pump body, and a fixing hole is provided at the bottom of the mounting bracket;
[0020] As a further description of the above technical solution:
[0021] Multiple heat dissipation fins are fixedly connected to the outside of the pump body, and multiple heat dissipation holes are opened on both sides of the heat dissipation box.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, sliders are installed on both sides of the heat sink, and support blocks are set on both sides of the base. The heat sink is installed in the groove inside the support block by the sliders, which can fix one side of the heat sink. The other side is connected to a fixing plate, so that the pin hole on the fixing plate can be engaged with the pin on the base to fix the heat sink. This makes the heat sink easier to open and quicker, and facilitates the maintenance and replacement of internal parts.
[0024] 2. In this utility model, the cooling pipes inside the heat dissipation box are arranged in a disc shape to increase the flow distance. Heat dissipation fins are installed on the outside of the disc-shaped cooling pipes to accelerate heat dissipation. Multiple heat dissipation fins are set on the outer blades of the pump body to improve the heat dissipation effect and extend the service life of the canned pump. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a heat dissipation structure device for the stator end of a shielded electric pump proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the heat dissipation structure of a shielded electric pump stator end heat dissipation device proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the heat dissipation box of a shielded electric pump stator end heat dissipation structure device proposed in this utility model.
[0028] Figure 4 This is a schematic diagram of the snap-fit assembly of a shielded electric pump stator end heat dissipation structure device proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the sliding component of a shielded electric pump stator end heat dissipation structure device proposed in this utility model.
[0030] Legend:
[0031] 1. Pump body; 2. Mounting bracket; 3. Fixing hole; 4. Heat dissipation fins; 5. Heat dissipation box; 6. Cooling fan; 7. Fixing block; 8. Cooling pipe; 9. Heat dissipation hole; 10. Support block; 11. Pin; 12. Heat dissipation fin; 13. Fixing plate; 14. Mounting groove; 15. Pin hole; 16. Slider; 17. Pull ring; 18. Base; 19. Baffle plate; 20. Housing; 21. Spring; 22. Outlet; 23. Inlet; 24. Slide groove. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5An embodiment of this utility model provides a heat dissipation structure device for the stator end of a shielded electric pump, including a pump body 1, an outlet 22 fixedly connected to one end of the pump body 1, an inlet 23 fixedly connected to one end of the pump body 1, through which liquid is transported; a base 18 fixedly connected to the top of the pump body 1, a heat dissipation box 5 installed on the top of the base 18, the heat dissipation box 5 being mounted on the pump body 1 via the base 18; a cooling fan 6 fixedly connected to the top of the heat dissipation box 5 to accelerate heat dissipation; a cooling pipe 8 fixedly connected to one end of the pump body 1, the other end of the cooling pipe 8 fixedly connected to the other end of the pump body 1, for circulating cooling of the liquid inside the pump; a snap-fit assembly installed on one side of the base 18 to fix the heat dissipation box 5, and a sliding assembly installed on the other side of the base 18 to mount the heat dissipation box 5;
[0034] The snap-fit assembly includes a fixing plate 13, which is fixedly connected to one side of the heat sink 5 to secure it. The fixing plate 13 has a pin hole 15 inside, which is used for snap-fit fixing. A fixing block 7 is fixedly connected to one end of the base 18 to support and fix the assembly. A housing 20 is fixedly connected inside the fixing block 7 to protect the internal components. A pin 11 is slidably connected inside the housing 20, supporting the sliding motion. The pin 11 is inserted into the pin hole 15, securing the heat sink 5. Two support blocks 10 are fixedly connected to both sides of the base 18 to support the movement of the heat sink 5. Each support block 10 has a sliding groove 24 inside to limit the position of the heat sink 5. Two sliders 16 are fixedly connected to both sides of the heat sink 5. The heat sink 5 moves, and two sliders 16 are slidably connected inside the slide groove 24. The heat sink 5 is fixed inside the two support blocks 10 by the two sliders 16. One end of the pin 11 is fixedly connected to a pull ring 17, which is located on the side away from the fixing plate 13. Pulling the pull ring 17 can move the pin 11. A baffle 19 is fixedly connected to the middle of the pin 11, which restricts the movement of the pin 11. A spring 21 is sleeved on the outside of the pin 11. The spring 21 squeezes the baffle 19 to move the pin 11 and then resets it. Both the baffle 19 and the spring 21 are located inside the outer shell 20 and are protected by the outer shell 20. The heat sink 5 is installed with a sliding assembly. The sliders 16 and the support blocks 10 fix one side of the heat sink 5 and are fixed with a snap-fit assembly, which allows the heat sink 5 to be opened quickly, saving time and making it more convenient to maintain the internal heat dissipation components.
[0035] Reference Figure 1 , Figure 3 The base 18 is fixedly connected to the top of the heat sink 12, the cooling pipe 8 is located inside the heat sink 12 to accelerate the cooling of the cooling pipe 8, and the cooling fan 6 is located on the top of the heat sink 12 to remove the heat from the heat sink 12 and improve the cooling efficiency.
[0036] Reference Figures 1-3The heat sink 5 has mounting slots 14 at both ends, and the cooling pipes 8 are located inside the two mounting slots 14, making it easier to install the heat sink 5. The bottom of the pump body 1 is fixedly connected to the mounting bracket 2 for installing the shielded pump. The bottom of the mounting bracket 2 has fixing holes 3, and the pump body 1 is fixed through the fixing holes 3 with screws. Multiple heat dissipation fins 4 are fixedly connected to the outside of the pump body 1 to accelerate the heat dissipation of the pump body 1. Multiple heat dissipation holes 9 are opened on both sides of the heat sink 5. Under the action of the cooling fan 6, the air flow inside the heat sink 5 is accelerated. Under the action of multiple heat dissipation structures, the heat dissipation speed of the pump body 1 can be effectively improved, and the cooling is accelerated.
[0037] Working principle: First, when the heat sink 5 needs to be opened, pull the pull ring 17 outward. The pull ring 17 drives the pin 11 to move inside the outer shell 20. One end of the pin 11 disengages from the pin hole 15, allowing the fixing plate 13 to move. The heat sink 5 can then be moved to one side, allowing the sliders 16 fixed on both sides of the heat sink 5 to slide along the slide groove 24. The sliders 16 are disengaged from the support block 10. The heat sink 5 can then be removed for internal parts repair and inspection. During installation, the slider 16 is moved into the support block 10, and the pin 11 on the other side is engaged inside the pin hole 15. The spring 21 presses the baffle 19, which restricts the movement of the pin 11, preventing it from loosening when fixed, thus securing the heat sink 5 firmly.
[0038] Secondly, the cooling pipes 8 inside the heat sink 5 are arranged in a disc shape to increase the contact time with air. The heat sink 12 on the outside of the cooling pipes 8 accelerates cooling and improves heat dissipation efficiency. The cooling fan 6 on the top of the heat sink 5 is started to exhaust hot air. Multiple heat dissipation holes 9 on both sides of the heat sink 5 provide heat dissipation space. Multiple heat dissipation fins 4 are set on the surface of the pump body 1, which can also accelerate cooling. The shielded electric pump accelerates heat dissipation through multiple heat dissipation structures.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for heat dissipation of a shielded electric pump stator end, comprising a pump body (1), characterized in that: One end of the pump body (1) is fixedly connected to a water outlet (22), and one end of the pump body (1) is fixedly connected to a water inlet (23). A base (18) is fixedly connected to the top of the pump body (1). A heat dissipation box (5) is installed on the top of the base (18). A cooling fan (6) is fixedly connected to the top of the heat dissipation box (5). A cooling pipe (8) is fixedly connected to one end of the pump body (1). The other end of the cooling pipe (8) is fixedly connected to the other end of the pump body (1). A snap-fit assembly is installed on one side of the base (18), and a sliding assembly is installed on the other side of the base (18). The snap-fit assembly includes a fixing piece (13), which is fixedly connected to one side of the heat sink (5). The fixing piece (13) has a pin hole (15) inside. One end of the base (18) is fixedly connected to a fixing block (7). The fixing block (7) has a housing (20) fixedly connected inside. The housing (20) has a pin (11) slidably connected inside. The pin (11) is inserted into the pin hole (15).
2. A device for heat dissipation from a stator end of a canned electric pump according to claim 1, characterized in that: The base (18) is fixedly connected to a heat sink (12) on top, the cooling pipe (8) is located inside the heat sink (12), and the cooling fan (6) is located on top of the heat sink (12).
3. A device for heat dissipation from a stator of an electrically shielded pump according to claim 2, characterized in that: The base (18) has two support blocks (10) fixedly connected to both sides. Each of the two support blocks (10) has a sliding groove (24) inside. The heat sink (5) has two sliders (16) fixedly connected to both sides. The two sliders (16) are slidably connected inside the sliding groove (24).
4. A device for heat dissipation from a stator of an electrically shielded pump according to claim 3, characterized in that: The heat sink (5) has mounting slots (14) at both ends, and the cooling pipe (8) is located inside the two mounting slots (14).
5. A device for heat dissipation from a stator end of a canned electric pump according to claim 1, characterized in that: One end of the pin (11) is fixedly connected to a pull ring (17), which is located on the side away from the fixing piece (13).
6. A device for heat dissipation from a stator of an electrically shielded pump according to claim 5, characterized in that: A baffle plate (19) is fixedly connected to the middle of the pin (11), and a spring (21) is sleeved on the outside of the pin (11). Both the baffle plate (19) and the spring (21) are located inside the outer shell (20).
7. A shielded electric pump stator end heat dissipation structure apparatus as defined in claim 1, wherein: The bottom of the pump body (1) is fixedly connected to a mounting bracket (2), and the bottom of the mounting bracket (2) is provided with a fixing hole (3).
8. A shielded electric pump stator end heat dissipation structure apparatus as defined in claim 1, wherein: Multiple heat dissipation fins (4) are fixedly connected to the outside of the pump body (1), and multiple heat dissipation holes (9) are opened on both sides of the heat dissipation box (5).