Heat dissipation self-protection type electronic water pump

Abstract

The utility model discloses a heat dissipation self-protection type electronic water pump, which belongs to the technical field of electronic water pumps, and comprises a pump shell, an impeller and a motor, the outer end of the motor is provided with a heat dissipation assembly for heat dissipation, and the outer end of the pump shell is respectively provided with a water inlet and a water outlet which are communicated with the inside. When the water pipe is connected with a water pump, the water pipe is firstly arranged on the connecting pipe in a sleeving mode, then the first hoop and the second hoop are rotationally combined together and then locked through the bolt, and at the moment, the water pipe can be extruded and attached to the connecting pipe through the extrusion block and the air ring; due to the fact that the working temperature of the cooling liquid is high, air in the air ring is heated to expand, the size of the air ring is increased, the air ring is heated through the temperature of the cooling liquid in the working process, the water pipe can be fixed more tightly, and the water pipe can be prevented from loosening or leaking.

Description

Technical Field

[0001] This utility model relates to the field of electronic water pump technology, and more specifically, to a heat dissipation self-protection type electronic water pump. Background Technology

[0002] An electric water pump for automobiles is an electrically driven water pump device used in the cooling system of a car engine to accelerate the circulation of coolant. Compared with traditional mechanical water pumps, electric water pumps do not need to be driven by the engine; instead, they are operated by an electric motor. This allows for more precise control and more efficient energy utilization. The pump's speed and flow rate can be adjusted according to the engine's operating status and cooling needs, helping to improve the engine's fuel efficiency and providing sufficient cooling capacity when needed.

[0003] Chinese Patent Announcement No. CN219622892U provides an electronic water pump. This solution uses an isolation sleeve assembly including a plastic sleeve base and a metal sleeve embedded in the plastic sleeve base. The metal sleeve covers the outer periphery of the rotor. The pump cover, plastic sleeve base, stator pump body, and rear cover are sequentially joined and fixed to form the outer shell of the electronic water pump. By setting the isolation sleeve assembly to have a metal sleeve embedded in the plastic sleeve base, the structural strength of the entire electronic water pump body is strengthened. With this setting, a hollow cavity is retained between the metal sleeve and the rear cover, which facilitates the disassembly and maintenance of the printed circuit board and the stator.

[0004] The water pipes in the vehicle's cooling system need to be connected to the water outlet and inlet of the electric water pump. The above-mentioned solution and the traditional connection method of automotive electric water pumps usually use cable ties or metal rings to fix them. However, when the car is driving, it will generate severe vibrations. The connection between the electric water pump and the water pipes will not only be affected by the vehicle vibrations, but also by the impact of the coolant, which will easily cause loosening or leakage, resulting in damage to the cooling system.

[0005] Therefore, a heat dissipation self-protection type electronic water pump is proposed to address the above problems. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] This invention provides a heat dissipation self-protection type electronic water pump, which can improve the problems existing in related technologies: when a car is driving, it will generate severe vibration. The connection between the electronic water pump and the water pipe will not only be affected by the vehicle vibration, but also by the impact of the coolant, which will easily cause loosening or leakage, resulting in damage to the cooling system.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] This application provides a heat dissipation self-protection electronic water pump, including a pump housing, an impeller, and a motor. The impeller is fixedly installed at the output end of the motor, and the pump housing is fixedly installed at the outer end of the motor. The impeller is located inside the pump housing. A heat dissipation component is provided at the outer end of the motor for heat dissipation. An inlet and an outlet connected to the interior are respectively provided at the outer end of the pump housing. A connecting component is provided at the outer end of both the inlet and outlet. A fixing component is provided at the outer end of the connecting component. The fixing component includes a connecting pipe, a second ring, and a first ring. Grooves are provided on the inner sides of both the first and second rings. An air ring is installed inside the groove. The air ring is hollow and filled with gas. When the air ring is heated, it expands in volume and presses the water pipe against the connecting pipe.

[0011] The technical solutions described in this application embodiment have at least the following technical effects:

[0012] When connecting the water pipe to the water pump, first, the water pipe is fitted onto the connecting pipe. Then, the first and second ring clamps are rotated together and tightened with bolts. At this time, the compression block and the air ring will squeeze the water pipe to adhere to the connecting pipe. Because the working temperature of the coolant is high, the air inside the air ring will be heated and expand, making the air ring larger. This allows the air ring to be heated by the temperature of the coolant during operation, which can more tightly fix the water pipe, thus preventing the water pipe from loosening or leaking.

[0013] In some embodiments, an electronic control device is installed at the outer end of the motor, the electronic control device being used to control the power and start / stop of the motor, and a fixing bracket is fixedly installed at the outer end of the motor.

[0014] In some embodiments, the heat dissipation assembly includes a cover plate, with air guides fixedly installed on both sides of the cover plate, and a plurality of heat dissipation fins fixedly installed on the inner side of the cover plate, the heat dissipation fins being fixedly connected to the outer end of the motor.

[0015] In some embodiments, an abutment ring II and a retaining ring are fixedly installed at the outer end of the connecting pipe, the air ring is located between the abutment ring II and the retaining ring, and a sealing device is installed at one end of the connecting pipe.

[0016] In some embodiments, one end of the first ring hoop and the second ring hoop are rotatably connected, and the other end of the first ring hoop and the second ring hoop are connected. An extrusion block is fixedly installed on the inner side of both the first ring hoop and the second ring hoop.

[0017] In some embodiments, the connecting assembly includes a fixing pipe, which is fixedly connected to the water inlet, and the connecting pipe is threadedly connected to the fixing pipe. An abutment ring is fixedly connected to the outer end of the fixing pipe, and the abutment ring abuts against the abutment ring. An abutment groove matching the sealing device is provided on the inner side of the fixing pipe.

[0018] In some embodiments, the sealing device includes a bottom ring and a sealing ring. The bottom ring is fixedly installed on the outer end of the connecting pipe. An annular groove is formed on the inner side of the bottom ring. A spring piece 1 is installed inside the annular groove. A spring piece 2 is fixedly connected to the outer end of the spring piece 1. The spring piece 1 and the spring piece 2 are combined to form a V-shape in cross section. The bottom of the sealing ring abuts against the spring piece 2. The sealing ring is pressed against the abutment groove by the force of the spring piece 2 to form a seal. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the heat dissipation component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixing component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the gas cylinder structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection component structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the sealing device structure of this utility model;

[0026] Figure 8 For the present utility model Figure 7 Schematic diagram of the structure at point A in the middle.

[0027] Explanation of the labels in the diagram:

[0028] 1. Pump casing;

[0029] 2. Impeller;

[0030] 3. Electric motor;

[0031] 4. Heat dissipation components; 41. Cover plate; 42. Air guide shroud; 43. Heat dissipation fins;

[0032] 5. Water outlet;

[0033] 6. Water inlet;

[0034] 7. Connecting components; 71. Fixing pipe; 72. Abutment ring one; 73. Abutment groove;

[0035] 8. Fixing component; 81. Connecting pipe; 82. Abutment ring two; 83. Snap ring; 84. Ring clamp one; 85. Ring clamp two; 86. Extrusion block; 87. Air ring; 88. Sealing device; 881. Bottom ring; 882. Spring one; 883. Sealing ring; 884. Spring two; 885. Annular groove;

[0036] 9. Fixture;

[0037] 10. Electronic control device. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] Please see Figures 1-8 A heat dissipation self-protection electronic water pump includes a pump housing 1, an impeller 2, and a motor 3. The impeller 2 is fixedly installed at the output end of the motor 3, and the pump housing 1 is fixedly installed at the outer end of the motor 3. The impeller 2 is located inside the pump housing 1. A heat dissipation component 4 is provided at the outer end of the motor 3 for heat dissipation. An inlet 6 and an outlet 5 connected to the interior are respectively provided at the outer end of the pump housing 1. A connecting component 7 is provided at the outer end of both the outlet 5 and the inlet 6. A fixing component 8 is provided at the outer end of the connecting component 7. The fixing component 8 includes a connecting pipe 81, a second ring 85, and a first ring 84. Grooves are opened on the inner side of the first ring 84 and the second ring 85. An air ring 87 is installed inside the groove. The air ring 87 is hollow and filled with gas. After the air ring 87 is heated and expands, its volume increases and it presses the water pipe against the connecting pipe 81.

[0040] An electronic control device 10 is installed at the outer end of the motor 3. The electronic control device 10 is used to control the power and start / stop of the motor 3. A fixing bracket 9 is fixedly installed at the outer end of the motor 3.

[0041] Compared to traditional pumps, the water pump in this design allows for a more secure connection to the water pipes in the automotive cooling system, preventing loosening. An impeller 2 is fixedly mounted at the output end of the motor 3. The pump housing 1 is fixed to the outside of the motor 3, enclosing the impeller 2 inside. An inlet 6 and an outlet 5 are located on the outside of the pump housing 1. When coolant enters the pump housing 1 through the inlet 6, the motor 3 drives the impeller 2 to rotate, accelerating the coolant before it is output through the outlet 5, allowing for rapid circulation of the coolant within the cooling system. An electronic control device 10 is installed on the outside of the motor 3. This device primarily controls the power and on / off state of the motor 3. The motor 3 can remain off when the car is first started, but can be activated once the engine temperature rises to accelerate coolant circulation. A mounting bracket 9 is fixed to the outside of the motor 3, allowing the water pump to be bolted to the vehicle frame.

[0042] A heat dissipation component 4 is installed at the outer end of the motor 3. The heat dissipation component 4 is mainly used to dissipate heat from the motor 3 to prevent it from overheating and burning out. A connecting component 7 is installed at the water outlet 5 and the water inlet 6. A fixing component 8 is installed on the connecting component 7. The fixing component 8 is mainly used to connect with the water pipe. The connecting component 7 connects with the fixing component 8 to connect the water pipe to the inside of the pump housing 1. When connecting the water pipe to the water pump, the water pipe is first put on the connecting pipe 81. Then, the ring 84 and the ring 85 are rotated together and locked with bolts. At this time, the squeezing block 86 and the air ring 87 will squeeze the water pipe to adhere to the connecting pipe 81. Since the working temperature of the coolant is high, the air inside the air ring 87 will be heated and expand, making the air ring 87 larger. This allows the air ring 87 to be heated by the temperature of the coolant during operation, so that it can fix the water pipe more tightly, thereby preventing loosening or leakage.

[0043] Please see Figures 1-3 The heat dissipation component 4 includes a cover plate 41, with air guide covers 42 fixedly installed on both sides of the cover plate 41, and multiple heat dissipation fins 43 fixedly installed on the inner side of the cover plate 41. The heat dissipation fins 43 are fixedly connected to the outer end of the motor 3.

[0044] In this design, air guide shrouds 42 are fixed on both sides of the cover plate 41. The air guide shrouds 42 are trumpet-shaped, which can gather the air around the motor 3 between the cover plate 41 and the motor 3, thereby increasing the frontal area. Multiple heat dissipation fins 43 are fixed on the inner side of the cover plate 41 and fixed to the outer end of the motor 3. The heat dissipation fins 43 can dissipate the heat generated by the motor 3 during operation into the air. The air guide shrouds 42 are fixed on both sides of the cover plate 41, which can increase the frontal area when the water pump is installed in either direction, and can accelerate the heat dissipation of the heat dissipation fins 43, thereby preventing the motor 3 from overheating due to long-term operation.

[0045] Please see Figures 4-8 The outer end of the connecting pipe 81 is fixedly installed with a second abutment ring 82 and a retaining ring 83, and the air ring 87 is located between the second abutment ring 82 and the retaining ring 83. A sealing device 88 is installed at one end of the connecting pipe 81.

[0046] One end of ring hoop 84 and ring hoop 2 85 are rotatably connected, and the other end of ring hoop 84 and ring hoop 2 85 are connected. An extrusion block 86 is fixedly installed on the inner side of both ring hoop 84 and ring hoop 2 85.

[0047] The fixing component 8 in this solution is mainly used for installing water pipes. The outer end of the connecting pipe 81 is fixed with an abutment ring 82 and a retaining ring 83. The abutment ring 82 is mainly used to abut against the abutment ring 72, while the retaining ring 83 is used to cooperate with the air ring 87 to form a step to hold the water pipe in place. One end of the ring clamps 84 and 85 is rotatably connected, while the other end can be connected together by bolts, allowing the ring clamps 84 and 85 to enclose the connecting pipe 81. An arc-shaped groove is formed on the inner side of both ring clamps 84 and 85, and the air ring 87 is installed in the groove. The air ring 87 is made of rubber and is hollow and filled with air. An extrusion block 86 is also fixed inside the ring clamps 84 and 85. The extrusion block 86 and the air ring 87... Similar to the previous method, both are used to fix water pipes. When installing water pipes, the water pipe needs to be fitted onto the retaining ring 83 and then moved forward along the connecting pipe 81. When it is blocked by the second retaining ring 82, the fitting is complete. At this time, the first retaining ring 84 and the second retaining ring 85 can be clamped onto the outer end of the connecting pipe 81 and locked with bolts. At this time, the squeezing block 86 and the air ring 87 will squeeze the water pipe at the same time. When the motor 3 starts working, it means that the coolant temperature has risen. At this time, the coolant will flow through the outlet 5 and the inlet 6. The air ring 87 will expand by absorbing heat, making its volume larger. Since the first retaining ring 84 and the second retaining ring 85 have been fixed, the air ring 87 will squeeze the water pipe, so that it can squeeze the water pipe more firmly during operation, preventing the water pipe from loosening or leaking due to vehicle vibration or coolant impact.

[0048] Please see Figures 4-8The connecting component 7 includes a fixed pipe 71, which is fixedly connected to the water inlet 6. The connecting pipe 81 is threadedly connected to the fixed pipe 71. An abutment ring 72 is fixedly connected to the outer end of the fixed pipe 71. The abutment ring 72 abuts against the abutment ring 82. An abutment groove 73 matching the sealing device 88 is opened on the inner side of the fixed pipe 71.

[0049] The sealing device 88 includes a bottom ring 881 and a sealing ring 883. The bottom ring 881 is fixedly installed on the outer end of the connecting pipe 81. An annular groove 885 is opened on the inner side of the bottom ring 881. A spring piece 882 is installed inside the annular groove 885. A spring piece 884 is fixedly connected to the outer end of the spring piece 882. The spring piece 882 and the spring piece 884 are combined to form a V-shape in cross section. The bottom of the sealing ring 883 abuts against the spring piece 884. The sealing ring 883 abuts against the abutment groove 73 through the force of the spring piece 884 to form a seal.

[0050] The connecting component 7 in this scheme is mainly used to enable the fixing component 8 to be installed on the outlet 5 or the inlet 6. The fixing pipe 71 is fixed on the outlet 5 and the inlet 6, so that the fixing pipe 71 can be connected to the inside of the pump housing 1. An abutment ring 72 is fixed at the outer end of the fixing pipe 71. When the connecting pipe 81 is threadedly connected to the fixing pipe 71, the abutment ring 72 can limit the stroke, so that the abutment ring 72 and the abutment ring 82 abut against each other. An abutment groove 73 is provided on the inner side of the fixing pipe 71, and the abutment groove 73 matches the sealing device 88 installed at the tail end of the connecting pipe 81.

[0051] The bottom ring 881 is fixed to the tail section of the connecting pipe 81. An annular groove 885 is formed inside the bottom ring 881, and a spring piece 882 is installed inside the annular groove 885. A second spring piece 884 is fixed to the outer end of the first spring piece 882. Both the second spring piece 884 and the first spring piece 882 are made of metal. When the first spring piece 882 and the second spring piece 884 are connected, they form a V-shape. A sealing ring 883 is installed on the outer end of the second spring piece 884. The sealing ring 883 is also located inside the annular groove 885 and can slide up and down inside it. When the connecting pipe... When the connecting pipe 81 and the fixed pipe 71 are threaded together and the abutting ring 82 and the abutting ring 72 are abutted, the sealing device 88 at the tail of the connecting pipe 81 will also be inserted into the abutting groove 73. The sealing ring 883 abuts against the inner wall of the abutting groove 73. The sealing ring 883 is pushed outward by the force formed by the spring 884 and the spring 882, so that the sealing ring 883 can always be tightly attached to the inner wall of the abutting groove 73 to form a seal. Compared with the traditional threaded connection, the sealing performance of the connection between the connecting component 7 and the fixed component 8 can be increased to prevent leakage.

[0052] Working principle: When the water pump is installed and connected to the water pipe, the water pipe is first fitted onto the retaining ring 83 and then moved forward along the connecting pipe 81. Then, the first ring clamp 84 and the second ring clamp 85 are clamped onto the outer end of the connecting pipe 81. At this time, the squeezing block 86 and the air ring 87 will squeeze the water pipe simultaneously. When the motor 3 starts working, the air ring 87 will expand by absorbing heat, making its volume larger. Since the first ring clamp 84 and the second ring clamp 85 have been fixed, the air ring 87 will squeeze the water pipe, so that it can squeeze the water pipe more firmly when working. Then, the fixing pipe 71 and the connecting pipe 81 are threaded together. The sealing device 88 at the end of the connecting pipe 81 will be inserted into the abutment groove 73. The sealing ring 883 abuts against the inner wall of the abutment groove 73. The sealing ring 883 is pushed outward by the force formed by the second spring 884 and the first spring 882, so that the sealing ring 883 can always be tightly attached to the inner wall of the abutment groove 73 to increase the sealing performance.

Claims

1. A self-protecting electronic water pump with heat dissipation, comprising a pump shell (1), an impeller (2) and a motor (3), the impeller (2) is fixedly installed at the output end of the motor (3), the pump shell (1) is fixedly installed at the outer end of the motor (3), and the impeller (2) is located inside the pump shell (1), characterized in that The outer end of the motor (3) is provided with a heat dissipation assembly (4) for heat dissipation; The outer end of the pump shell (1) is respectively provided with a water inlet (6) and a water outlet (5) which are connected with the inside, the outer end of the water outlet (5) and the water inlet (6) is provided with a connecting assembly (7), the outer end of the connecting assembly (7) is provided with a fixing assembly (8); The fixing assembly (8) comprises a connecting pipe (81), a ring hoop two (85) and a ring hoop one (84), the inner side of the ring hoop one (84) and the ring hoop two (85) is provided with a groove, the inside of the groove is installed with an air ring (87), the inside of the air ring (87) is hollow and filled with gas, the air ring (87) expands after being heated and the volume becomes larger to resist the water pipe on the connecting pipe (81).

2. The self-protecting electronic water pump with heat dissipation according to claim 1, characterized in that: The outer end of the motor (3) is installed with an electronic control device (10), the electronic control device (10) is used for controlling the power and opening and closing of the motor (3), and the outer end of the motor (3) is fixedly installed with a fixing frame (9).

3. The self-protecting electronic water pump with heat dissipation according to claim 1, characterized in that: The heat dissipation assembly (4) comprises a cover plate (41), the both sides of the cover plate (41) are fixedly installed with a wind deflector (42), the inner side of the cover plate (41) is fixedly installed with a plurality of heat dissipation fins (43), and the heat dissipation fins (43) are fixedly connected with the outer end of the motor (3).

4. The self-protecting electronic water pump with heat dissipation according to claim 1, characterized in that: The outer end of the connecting pipe (81) is respectively fixedly installed with an abutting ring two (82) and a clamping ring (83), the air ring (87) is located between the abutting ring two (82) and the clamping ring (83), and one end of the connecting pipe (81) is installed with a sealing device (88).

5. The self-protecting electronic water pump with heat dissipation according to claim 4, characterized in that: One end of the ring hoop one (84) and the ring hoop two (85) is rotatably connected, the other end of the ring hoop one (84) and the ring hoop two (85) is connected, and the inner side of the ring hoop one (84) and the ring hoop two (85) is fixedly installed with an extrusion block (86).

6. The self-protecting electronic water pump with heat dissipation according to claim 5, characterized in that: The connecting assembly (7) comprises a fixed pipe (71), the fixed pipe (71) is fixedly connected with the water inlet (6), the connecting pipe (81) is threadedly connected with the fixed pipe (71), the outer end of the fixed pipe (71) is fixedly connected with an abutting ring one (72), the abutting ring one (72) abuts against the abutting ring two (82), and the inner side of the fixed pipe (71) is provided with an abutting groove (73) matched with the sealing device (88).

7. The self-protecting electronic water pump with heat dissipation according to claim 6, characterized in that: The sealing device (88) comprises a bottom ring (881) and a sealing ring (883), the bottom ring (881) is fixedly installed at the outer end of the connecting pipe (81), an annular groove (885) is formed in the inner side of the bottom ring (881), a spring piece one (882) is installed inside the annular groove (885), the outer end of the spring piece one (882) is fixedly connected with a spring piece two (884), the spring piece one (882) and the spring piece two (884) are combined together to form a V-shaped cross section, the bottom of the sealing ring (883) abuts against the spring piece two (884), and the sealing ring (883) is forced to the abutting groove (73) by the force of the spring piece two (884) to form a seal.

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