Submersible electric pump

Abstract

This application relates to a submersible pump, belonging to the field of submersible pumps. Addressing the problem of inadequate motor heat dissipation due to unreasonable structural design in existing submersible pumps, this application provides a submersible pump comprising a barrel with a built-in motor and a pump body connected to the barrel. One end of the barrel has an integral cavity containing hydraulic oil. The cavity is located close to the pump body, and a heat dissipation jacket is provided on the outer side of the cavity. The heat dissipation jacket has multiple first through holes. When the front end of the submersible pump barrel is fully or partially submerged in water, the cavity is partially or fully in contact with water. Water enters the space between the heat dissipation jacket and the cavity through the first through holes. Due to the barrier provided by the heat dissipation jacket, the water can collide multiple times between the jacket and the cavity, achieving multiple heat exchanges. When only the front end of the barrel is partially submerged in water, part of the cavity is in contact with air. The first through holes increase the heat dissipation area of ​​the cavity, thus ensuring better heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the field of submersible electric pumps, and specifically relates to a submersible electric pump. Background Technology

[0002] In existing water pump structures, the top cover is connected to the casing, which houses the controller. The motor is located inside the casing, and its operation is controlled by the controller. The motor's output shaft extends from the casing and connects to the pump body to drive its rotation. To ensure proper motor operation, a chamber filled with hydraulic oil is typically included for heat dissipation. However, existing heat dissipation chambers suffer from poor design; specifically, their outer surfaces are smooth, resulting in a small effective heat dissipation area. Consequently, the heat generated by the motor cannot be effectively dissipated, leading to inadequate heat dissipation and impacting motor performance. Utility Model Content

[0003] To address the problem of inadequate motor heat dissipation caused by unreasonable structural design in existing submersible pumps, this utility model provides a submersible pump with a heat dissipation cover, which increases the contact area between the cavity and water or air, ensuring better heat dissipation.

[0004] The technical solution adopted by this utility model is as follows: a submersible electric pump includes a barrel with a built-in motor and a pump body connected to the barrel. One end of the barrel is provided with an integral cavity, the cavity is filled with hydraulic oil, the cavity is located close to the pump body, and a heat dissipation jacket is provided on the outside of the cavity. The heat dissipation jacket is provided with a plurality of first through holes.

[0005] In actual use, when the front end of the submersible pump barrel is fully or partially submerged in water, the cavity is partially or fully in contact with water. Water enters the space between the heat dissipation jacket and the cavity through the first through hole. Due to the barrier of the heat dissipation jacket, the water can collide multiple times between the heat dissipation jacket and the cavity, achieving multiple heat exchanges. When only the front end of the barrel is partially submerged in water, part of the cavity is in contact with air. The heat dissipation jacket is set on the outside of the cavity, and the setting of the first through hole can increase the heat dissipation area of ​​the cavity, thus ensuring a better heat dissipation effect.

[0006] Furthermore, a heat-conducting plate is provided on the inner side of the heat-dissipating jacket, and the heat-conducting plate is in close contact with the cavity. The heat-conducting plate has multiple second through holes, which are staggered with the first through holes. The heat-conducting plate is directly in contact with the cavity, and the heat on the cavity can be transferred to the heat-conducting plate. The staggered arrangement of the first and second through holes increases the surface area on the outside of the cavity that comes into contact with water or air, thus effectively increasing the contact area between water flow and / or air and the cavity, further ensuring the heat dissipation effect.

[0007] Furthermore, the heat-conducting plate and the heat-dissipating jacket are connected by a snap-fit ​​and a slot. Specifically, the heat-conducting plate may have a slot and the heat-dissipating jacket may have a snap-fit, or the heat-conducting plate may have a snap-fit ​​and the heat-dissipating jacket may have a slot. This can be adjusted according to specific needs. The preferred solution is that the heat-conducting plate has a snap-fit ​​at the top and the heat-dissipating jacket has a slot at the top. When assembling the two, the heat-conducting plate is directly inserted into the top slot of the heat-dissipating jacket from bottom to top, making it difficult for the two to come loose or separate.

[0008] Furthermore, the heat-conducting plate has a protruding edge that contacts the pump body. The protruding edge is located at the bottom of the heat-conducting plate and is supported by the surface of the pump body to ensure structural stability.

[0009] Furthermore, multiple first through holes are grouped and distributed circumferentially along the heat dissipation jacket to form a first heat dissipation grid. Each group of first through holes is distributed circumferentially along the heat dissipation jacket and arranged side by side to form a first heat dissipation grid. Adjacent first heat dissipation grids are separated by baffles to ensure the strength of the heat dissipation jacket.

[0010] Furthermore, multiple second through holes are arranged side by side to form a second heat dissipation grille. The heat-conducting plate is an arc-shaped plate, and the top of the heat-conducting plate is also provided with a flange. The flange is arranged side by side with the buckle, which can ensure that the buckle can be quickly installed in place during installation, and at the same time, it can also protect the buckle.

[0011] Furthermore, the outer side of the cavity is provided with a connecting post for the connecting member to pass through, and the heat dissipation jacket is provided with a clearance hole, with the connecting post positioned at the clearance hole. The pump body and the cavity are connected by a connecting member provided on the connecting post, ensuring a stable and reliable connection structure between the two.

[0012] Furthermore, reinforcing ribs are provided on both sides of the relief hole. The relief hole weakens the strength of the heat dissipation jacket, while the reinforcing ribs on both sides compensate for the strength loss due to the relief hole, ensuring structural stability and reliability.

[0013] Furthermore, an inner baffle is provided on the inner wall of the cavity, and the inner baffle is perpendicular to the bottom wall of the cavity. The inner baffle can effectively prevent the hydraulic oil in the cavity from centrifugal rotation.

[0014] The beneficial effects of this utility model are as follows: This application relates to a submersible electric pump, in which a heat dissipation jacket is provided on the outer side of the cavity containing the hydraulic oil. The heat dissipation area is increased through a first through hole on the heat dissipation jacket, ensuring good heat dissipation. In addition, a heat-conducting plate with a second through hole is provided on the inner side of the heat dissipation jacket, and the first and second through holes are staggered to further ensure the heat dissipation effect. Attached Figure Description

[0015] Figure 1 A schematic diagram of the connection structure of the barrel, pump body and heat dissipation jacket of a submersible electric pump;

[0016] Figure 2 This is a schematic diagram of the internal structure of a submersible electric pump (some parts are not shown).

[0017] Figure 3 A schematic diagram of the assembly structure of the casing and heat dissipation jacket;

[0018] Figure 4 This is a schematic diagram of the cavity structure of the barrel;

[0019] Figure 5 This is a schematic diagram of the structure after the heat dissipation jacket and heat conduction plate are assembled.

[0020] Figure 6 This is a schematic diagram of the internal structure after the heat dissipation jacket and heat conduction plate are assembled.

[0021] Figure 7 This is a schematic diagram of the structure of the heat dissipation jacket;

[0022] Figure 8 This is a schematic diagram of the heat-conducting plate.

[0023] Wherein: 1-Cylinder; 11-Cavity; 111-Inner baffle; 12-Connecting column; 2-Motor; 3-Pump body; 4-Heat dissipation jacket; 41-First through hole; 42-Slot; 43-First heat dissipation grille; 44-Leaning hole; 45-Reinforcing rib; 46-Side flange; 5-Heat conduction plate; 51-Second through hole; 52-Snap fastener; 53-Protruding edge; 54-Second heat dissipation grille; 55-Boss; 56-Limiting fold; 57-Flange. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0025] This embodiment is a submersible electric pump, such as Figures 1 to 8As shown, the device includes a barrel 1 with a built-in motor 2 and a pump body 3 connected to the barrel 1. One end of the barrel 1 has an integral cavity 11, which is located close to the pump body 3. Hydraulic oil is disposed within the area enclosed by the cavity 11. A heat dissipation jacket 4 is provided on the outer side of the cavity 11, and the heat dissipation jacket 4 has multiple first through holes 41. In this embodiment, the first through holes 41 extend to the top of the heat dissipation jacket 4. The multiple first through holes 41 are grouped and distributed along the circumference of the heat dissipation jacket 4 to form a first heat dissipation grid 43. Each group of first through holes 41 is distributed along the circumference of the heat dissipation jacket 4 and arranged side by side to form a first heat dissipation grid 43. Adjacent first heat dissipation grids 43 are separated by baffles to ensure the strength of the heat dissipation jacket 4. In addition, the grid-like structure is more aesthetically pleasing and convenient for handheld installation.

[0026] In actual use, when the front end of the submersible pump barrel 1 is fully or partially submerged in water, the cavity 11 is partially or fully in contact with water. Water enters the space between the heat dissipation jacket 4 and the cavity 11 through the first through hole 41. Due to the barrier of the heat dissipation jacket 4, the water can collide multiple times between the heat dissipation jacket 4 and the cavity 11, achieving multiple heat exchanges. When only the front end of the barrel 1 is partially submerged in water, part of the cavity 11 is in contact with air. The heat dissipation jacket 4 is set on the outside of the cavity 11. The setting of the first through hole 41 can increase the heat dissipation area of ​​the cavity 11, thus ensuring a better heat dissipation effect.

[0027] The outer side of the cavity 11 is provided with a connecting post 12 for the connecting member to pass through. The heat dissipation jacket 4 is provided with a relief hole 44, and the connecting post 12 is located at the relief hole 44. The connecting post 12 has internal threads, and the pump body 3 and the cavity 11 are connected by a connecting member (usually a long bolt) provided on the connecting post 12, ensuring that the connection structure between the two is stable and reliable.

[0028] The relief hole 44 is provided with reinforcing ribs 45 on both sides. The relief hole 44 can weaken the strength of the heat dissipation jacket 4. The reinforcing ribs 45 on both sides of the relief hole 44 make up for the strength lost due to the relief hole 44, and ensure the stability and reliability of the structure.

[0029] An inner baffle 111 is provided on the inner wall of the cavity 11. The inner baffle 111 is perpendicular to the bottom wall of the cavity 11. Preferably, the inner baffle 111 is 0.4-0.5 times the height of the inner wall of the cavity 11. In this embodiment, the side wall of the cavity 11 is an annular wall, and the bottom wall of the cavity 11 is a disc-shaped wall connected to the annular wall. The inner baffle 111 can effectively prevent the hydraulic oil in the cavity from centrifugally rotating. In this embodiment, a short side is provided at the end of the inner baffle 111, which can act as a reinforcing rib.

[0030] The inner side of the heat dissipation jacket 4 is provided with a heat-conducting plate 5, which is in close contact with the cavity 11. The heat-conducting plate 5 has multiple second through holes 51, which are staggered with the first through holes 41. The heat-conducting plate 5 is directly in contact with the cavity 11, and the heat on the cavity 11 can be transferred to the heat-conducting plate 5. The staggered arrangement of the first through holes 41 and the second through holes 51 increases the surface area on the outside of the cavity 11 that comes into contact with water or air, thus effectively increasing the contact area between the water flow and / or air and the cavity 11, further ensuring the heat dissipation effect. Multiple second through holes 51 are arranged side by side to form a second heat dissipation grille 54. The heat-conducting plate 5 is an arc-shaped plate, and the top of the heat-conducting plate 5 is also provided with a flange 57, which is arranged side by side with a buckle 52. During installation, this ensures that the buckle 52 can be quickly installed in place, and also provides protection for the buckle 52.

[0031] The heat-conducting plate 5 and the heat-dissipating jacket 4 are connected to the slot 42 via a buckle 52. Specifically, the heat-conducting plate 5 may have a slot 42 and the heat-dissipating jacket 4 may have a buckle 52, or the heat-conducting plate 5 may have a buckle 52 and the heat-dissipating jacket 4 may have a slot 42. This can be adjusted according to specific needs. The preferred solution is that the heat-conducting plate 5 has a buckle 52 on its top and the heat-dissipating jacket 4 has a slot 42 on its top. When the two are assembled, the heat-conducting plate 5 is directly inserted into the top slot 42 of the heat-dissipating jacket 4 from bottom to top, and the two are not easy to detach.

[0032] The heat-conducting plate 5 has a protruding edge 53, which contacts the pump body 3. The protruding edge 53 is located at the bottom of the heat-conducting plate 5, forming an inverted T-shaped structure to ensure its own structural stability. The protruding edge 53 is supported by the surface of the pump body 3 to ensure structural stability.

[0033] The heat dissipation jacket 4 is provided with a baffle 46, and the slot 42 is provided on the top of the baffle 46. The heat conduction plate 5 is provided with a boss 55, which is located below the buckle 52. When the heat conduction plate 5 is limited on the heat dissipation jacket 4, the boss 55 is located below the baffle 46, and the buckle 52 and the boss 55 clamp the upper and lower sides of the baffle 46 to form a limiting structure.

[0034] The heat-conducting plate 5 has limiting flanges 56 on both sides. When the heat-conducting plate 5 is assembled with the heat dissipation jacket 4, the limiting flanges 56 cooperate with the reinforcing ribs 45 to form a limiting.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A submersible electric pump comprising a motor cylinder (1) with an inbuilt motor (2) and a pump body (3) connected to the motor cylinder (1), characterized in that, One end of the barrel (1) is provided with an integral cavity (11), the cavity (11) is filled with hydraulic oil, the cavity (11) is located close to the pump body (3), and the outer side of the cavity (11) is provided with a heat dissipation jacket (4), the heat dissipation jacket (4) is provided with a plurality of first through holes (41).

2. The submersible electric pump according to claim 1, characterized in that, The heat dissipation jacket (4) has at least one heat-conducting plate (5) on its inner side. The heat-conducting plate (5) is in close contact with the cavity (11). The heat-conducting plate (5) has multiple second through holes (51), and the second through holes (51) are staggered with the first through holes (41).

3. The submersible electric pump according to claim 2, characterized in that, The heat-conducting plate (5) and the heat-dissipating jacket (4) are connected to the slot (42) by a buckle (52).

4. The submersible electric pump according to claim 2 or 3, characterized in that, The heat-conducting plate (5) is provided with a protruding edge (53), which is in contact with the pump body (3).

5. The submersible electric pump according to claim 1 or 2, characterized in that, Multiple first through holes (41) are grouped and distributed circumferentially along the heat dissipation jacket (4) to form a first heat dissipation grille (43).

6. The submersible electric pump according to claim 2, characterized in that, Multiple second through holes (51) are arranged side by side to form a second heat dissipation grille (54).

7. The submersible electric pump according to claim 1 or 2, characterized in that, The outer side of the cavity (11) is provided with a connecting post (12) for the connecting member to pass through, and the heat dissipation jacket (4) is provided with a relief hole (44), and the connecting post (12) is located at the relief hole (44).

8. The submersible electric pump according to claim 7, characterized in that, The relief hole (44) is provided with reinforcing ribs (45) on both sides.

9. The submersible electric pump according to claim 1, characterized in that, An inner baffle (111) is provided on the inner wall of the cavity (11), and the inner baffle (111) is perpendicular to the bottom wall of the cavity (11).

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