Automobile steering assist pump with heat dissipation

Abstract

The utility model relates to a car steering pump technical field especially relates to a car steering assist pump with heat dissipation, including pump body, the pulley of rotation setting on pump body and with pump body detachable connection's back cover, the detachable setting of back cover has heat dissipation device, the heat dissipation device includes with back cover detachable connection's exhaust hood, the fan and air intake of setting on exhaust hood, the inboard of exhaust hood is provided with the wind scooper, the middle part of wind scooper is provided with the air inlet, forms the air guide channel between the side of wind scooper and exhaust hood, through the fan on the exhaust hood, can blow the air to the air intake. After the wind enters the exhaust hood through the air intake, a part of wind blows the back cover and radiates heat through the air inlet, and another part of wind blows out through the air guide channel of the wind scooper under the action of the wind scooper to blow the pump body shell and radiate heat, and the overall heat dissipation effect of the pump body is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering pump technology, and in particular to an automotive power steering pump with heat dissipation. Background Technology

[0002] The power steering pump, also widely known as the steering cylinder, is one of the most crucial components in a hydraulic power steering system. Its primary function is to provide the necessary high-pressure hydraulic fluid to the entire steering system, thereby driving the power steering cylinders (including the pistons in rack or recirculating ball mechanisms). This significantly reduces the force required by the driver to turn the steering wheel, making steering easier and more agile.

[0003] For example, Chinese Patent No. CN213598178U discloses an automotive power steering pump, which includes a pump body and an end cover connected to the pump body. The pump body has a rotating shaft, a rotor, blades, a stator, and an oil distribution plate. The end cover has a mating groove, and a bushing is provided in the mating groove. One end of the rotating shaft is fitted onto the bushing, and the other end of the rotating shaft extends out of the pump body. The rotor is fitted onto the rotating shaft, and the stator is sleeved on the rotor. There is an oil passage between the stator and the rotor. A special-shaped limiting sleeve is sleeved on the stator. The oil pan is located on the side of the rotor away from the end cover. The oil distribution pan has an oil outlet. The pump body has a high-pressure chamber, which is located on the side of the oil distribution pan away from the rotor. The pump body has an oil inlet and an oil outlet. The oil outlet is connected to the high-pressure chamber. The oil inlet is located on the outside of the pump body and away from the end cover. The pump body has a first oil inlet channel, and the end cover has a second oil inlet channel. The first oil inlet channel is connected to the oil inlet, and the second oil inlet channel is connected to the first oil inlet channel. The second oil inlet channel leads to the oil passage.

[0004] During the operation of a car power steering pump, friction is generated by its internal mechanical components, resulting in heat and an increase in temperature. However, the aforementioned solutions and most current car power steering pumps on the market lack effective heat dissipation structures, making them prone to overheating during prolonged operation or in high-temperature environments. Overheating not only reduces the lifespan of the power steering pump but may also degrade the performance of the hydraulic fluid, thereby affecting the stability and reliability of the entire steering system. Utility Model Content

[0005] This utility model discloses a power steering pump with heat dissipation, which mainly solves the problem of poor heat dissipation effect of current power steering pumps.

[0006] To achieve the aforementioned objective, this utility model provides a power steering pump with heat dissipation, comprising a pump body, a pulley rotatably mounted on the pump body, and a rear cover detachably connected to the pump body. A heat dissipation device is detachably mounted on the rear cover, comprising an exhaust shroud detachably connected to the rear cover, a fan mounted on the exhaust shroud, and an air inlet. An air guide shroud is provided on the inner side of the exhaust shroud, and an air guide port is provided in the middle of the air guide shroud. An air guide channel is formed between the side of the air guide shroud and the exhaust shroud.

[0007] Furthermore, the fan is detachably connected to the exhaust shroud via a mounting rod.

[0008] Furthermore, an air inlet hood is provided on the side of the exhaust hood near the fan, and a funnel-shaped air diffuser is provided on the air inlet hood.

[0009] Furthermore, the exhaust hood is also equipped with a liquid supply device.

[0010] Furthermore, the liquid supply device includes a water tank located at the bottom of the exhaust hood, a wet curtain located on the side of the exhaust hood near the rear cover, and a water pump located on the exhaust hood. The water pump is connected to the wet curtain and the water tank through pipelines, and the position of the wet curtain corresponds to that of the air guide channel.

[0011] Furthermore, the top of the exhaust hood is equipped with a water box that is connected to the wet curtain, and the water box is connected to a water pump through a pipeline.

[0012] Furthermore, the exhaust hood is provided with a mesh plate for supporting the wet curtain.

[0013] Furthermore, the pump body is equipped with an oil inlet pipe and an oil outlet.

[0014] Furthermore, a gasket and a sealing ring are provided between the rear cover and the pump body.

[0015] The technical solution provided by this utility model has at least the following technical effects: The automotive power steering pump with cooling system disclosed in this application uses a fan on the exhaust shroud to blow air into the air inlet. After the air enters the exhaust shroud through the air inlet, part of the air is blown through the air guide vents to cool the rear cover, while the other part is blown out through the air guide channel of the air guide shroud to cool the pump body casing. This improves the overall cooling effect of the pump body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the automotive power steering pump according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the pump body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the heat dissipation device according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the exhaust hood and air guide hood in an embodiment of this utility model.

[0018] Key reference numerals in the attached drawings: 1. Pump body; 2. Pulley; 3. Rear cover; 4. Heat dissipation device; 41. Exhaust hood; 42. Fan; 43. Air inlet; 44. Air guide hood; 441. Air guide port; 5. Air guide channel; 6. Mounting rod; 7. Expansion hood; 8. Liquid supply device; 81. Water tank; 82. Wet curtain; 83. Water pump; 84. Water box; 9. Oil inlet pipe; 10. Oil outlet; 11. Gasket; 12. Mesh plate; 13. Air inlet hood. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0020] like Figure 1 , Figure 2As shown, this embodiment discloses a power steering pump with heat dissipation, including a pump body 1, a pulley 2 mounted on the pump body 1, and a rear cover 3 detachably connected to the pump body 1. The outer shell of the pump body 1 is made of a high thermal conductivity and corrosion-resistant metal material. The pump body 1 is provided with an oil inlet pipe 9 and an oil outlet 10. The rear cover 3 is detachably connected to the pump body 1 by bolts. A gasket 11 and a sealing ring are arranged between the rear cover 3 and the pump body 1 to ensure the stability and airtightness of the connection. A heat dissipation device 4 is detachably provided on the rear cover 3. The heat dissipation device 4 includes an exhaust shroud 41 detachably connected to the rear cover 3, a fan 42 mounted on the exhaust shroud 41, and an air inlet 43. The exhaust shroud 41 is detachably connected to the rear cover 3 by bolts. The fan 42 is detachably connected to the exhaust shroud 41 by an L-shaped mounting rod 6. One end is fixed to the exhaust shroud 41 by bolts, and the other end is connected to the motor of the fan 42, which drives the fan 42 to operate.

[0021] like Figure 3 , Figure 4 As shown, an air guide shroud 44 is provided inside the exhaust shroud 41. An air guide port 441 is located in the center of the air guide shroud 44. The diameter of the air guide port 441 is smaller than that of the air inlet 43 and the fan blade diameter of the fan 43. An air guide channel 5 is formed between the side of the air guide shroud 44 and the exhaust shroud 41. To effectively dissipate heat from the pump body 1's casing, the air guide channels 5 are distributed on all four sides of the exhaust shroud 41 under the action of the air guide shroud 44. This allows the air to be concentrated and directly blown onto the four sides of the casing through the air guide channels 5. Specifically, after the air enters the exhaust shroud 41 through the air inlet 43, part of the air blows heat from the rear cover 3 through the air guide port 441, while the other part of the air enters the air guide shroud 44 under the action of the air guide shroud 44 and blows directly onto the sides of the casing through the air guide channels 5 of the air guide shroud 44, thereby significantly improving the heat dissipation effect.

[0022] To improve the air intake efficiency of the exhaust hood 41, an air intake hood 13 is provided on the side of the exhaust hood 41 near the fan 42. This air intake hood 13 has a funnel-shaped air diffuser 7, which effectively increases the air intake area of ​​the exhaust hood 41.

[0023] like Figure 3As shown, to further improve the heat dissipation effect of the heat dissipation device 4, a liquid supply device 8 is added to the exhaust hood 41. This liquid supply device 8 is responsible for supplying coolant to the air outlet of the air guide channel 5, thereby allowing the exhaust air from the air guide channel 5 to carry water vapor. In this embodiment, the liquid supply device 8 includes the following components: a water tank 81 located at the bottom of the exhaust hood 41, a wet curtain 82 located on the side of the exhaust hood 41 near the rear cover 3 (the wet curtain 82 has a porous structure, the specific structure of which is well known to those skilled in the art, and therefore will not be described in detail in this embodiment), and a water pump 83 installed on the exhaust hood 41. In this embodiment, the wet curtain 82 includes left, right, and bottom sides, and the top of the water tank 81 is also provided with a liquid inlet to facilitate the return of excess coolant to the water tank 81 for recycling.

[0024] The exhaust hood 41 is also equipped with a mesh plate 12 for supporting the evaporative cooling pad 82. This mesh plate 12 is also porous, effectively improving the stability of the evaporative cooling pad 82. The water tank 81 has a liquid inlet for replenishment via an inlet pipe. The water pump 83 is connected to the evaporative cooling pad 82 and the water tank 81 via pipes. The position of the evaporative cooling pad 82 corresponds to the air outlet of the air guide channel 5. The water pump 83 delivers coolant from the water tank 81 to the evaporative cooling pad 82 via pipes, where the coolant flows slowly. To slow the flow rate of coolant into the evaporative cooling pad 82, a water box 84 connected to the evaporative cooling pad 82 is installed at the top of the exhaust hood 41. This water box 84 is connected to the water pump 83 via pipes, and has a liquid outlet at its bottom. The water box 84 effectively slows the flow rate of water onto the evaporative cooling pad 82, thus facilitating the coordination between the coolant and the airflow.

[0025] Working Principle: Pump 1 pumps coolant (water) from water tank 81 through a piping system to water box 84. The coolant then slowly flows into the wet curtain 82. Simultaneously, fan 42 is activated, expelling air through air inlet 43 into the exhaust shroud. After entering the exhaust shroud 41, guided by air guide shroud 44, some air flows through air guide vents 441 to cool the rear cover 3, while the rest flows out through air guide channels 5 under the influence of air guide shroud 44. Under the action of wet curtain 82, the air exhausted from the left, right, and bottom air guide channels 5 carries water vapor, effectively cooling the pump body 1 casing. This process significantly improves the heat dissipation of pump body 1, effectively controlling and reducing the temperature of the entire system.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 power steering pump with heat dissipation, comprising a pump body (1), a pulley (2) rotatably mounted on the pump body (1), and a rear cover (3) detachably connected to the pump body (1), characterized in that, A heat dissipation device (4) is detachably mounted on the rear cover (3). The heat dissipation device (4) includes an exhaust hood (41) detachably connected to the rear cover (3), a fan (42) mounted on the exhaust hood (41), and an air inlet (43). An air guide hood (44) is provided on the inner side of the exhaust hood (41). An air guide port (441) is provided in the middle of the air guide hood (44). An air guide channel (5) is formed between the side of the air guide hood (44) and the exhaust hood (41).

2. The automotive power steering pump with heat dissipation according to claim 1, characterized in that, The fan (42) is detachably connected to the exhaust shroud (41) via a mounting rod (6).

3. The automotive power steering pump with heat dissipation according to claim 1, characterized in that, The exhaust hood (41) is provided with an air inlet hood (13) on the side near the fan (42), and the air inlet hood (13) is provided with a funnel-shaped air diffuser hood (7).

4. The automotive power steering pump with heat dissipation according to claim 1, characterized in that, The exhaust hood (41) is also equipped with a liquid supply device (8).

5. The automotive power steering pump with heat dissipation according to claim 4, characterized in that, The liquid supply device (8) includes a water tank (81) at the bottom of the exhaust hood (41), a wet curtain (82) on the side of the exhaust hood (41) near the rear cover (3), and a water pump (83) on the exhaust hood (41). The water pump (83) is connected to the wet curtain (82) and the water tank (81) through a pipeline. The position of the wet curtain (82) corresponds to that of the air guide channel (5).

6. The automotive power steering pump with heat dissipation according to claim 5, characterized in that, The top of the exhaust hood (41) is provided with a water box (84) connected to the wet curtain (82), and the water box (84) is connected to the water pump (83) through a pipe.

7. The automotive power steering pump with heat dissipation according to claim 5, characterized in that, The exhaust hood (41) is provided with a grid plate (12) for supporting the wet curtain (82).

8. The automotive power steering pump with heat dissipation according to any one of claims 1-7, characterized in that, The pump body (1) is provided with an oil inlet pipe (9) and an oil outlet (10).

9. The automotive power steering pump with heat dissipation according to any one of claims 1-7, characterized in that, A gasket (11) and a sealing ring are provided between the rear cover (3) and the pump body (1).

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