Hydraulic power unit with heat dissipation mechanism

Abstract

The utility model relates to the field of hydraulic power, in particular to a hydraulic power unit with a heat dissipation mechanism, which comprises a fixed box, a movable cover, a motor and an oil tank, the fixed box is connected with the movable cover through a hinge, the motor and the oil tank are placed in the fixed box, and a first ventilation plate and a second ventilation plate are arranged on one side, located on the motor, of the fixed box. A cooling fan capable of rotating is installed between the first ventilation plate and the second ventilation plate, a fan rotating shaft of the cooling fan is detachably connected with the end of a motor rotating shaft, and the cooling fan is used for being driven by the motor to rotate to dissipate heat. The hydraulic power unit has the advantages of being provided with the heat dissipation mechanism and good in heat dissipation effect, and the problems that an existing hydraulic power unit is poor in heat dissipation effect, and normal operation of the hydraulic power unit is directly affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic power, in particular to a hydraulic power unit with a heat dissipation mechanism. Background Art

[0002] The hydraulic power unit is connected to several hydraulic cylinders through an external piping system to control the movement of multiple groups of valves. The hydraulic power unit is optimized for various application conditions, such as truck operation in harsh environments, long-term use in heavy object handling conditions, and other occasions that require high performance and high quality products. The existing hydraulic power unit will generate heat during operation due to continuous work, but the existing hydraulic power unit has poor heat dissipation effect, which will directly affect the normal operation of the hydraulic power unit. For this reason, we propose a hydraulic power unit with a built-in heat dissipation mechanism. Utility Model Content

[0003] The utility model aims to provide a hydraulic power unit with a self-contained heat dissipation mechanism, which has the advantages of a self-contained heat dissipation mechanism and good heat dissipation effect, and solves the problem that the existing hydraulic power unit has poor heat dissipation effect, which directly affects the normal operation of the hydraulic power unit.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic power unit with a built-in heat dissipation mechanism, comprising a fixed box, a movable cover, a motor and an oil tank, wherein the fixed box and the movable cover are connected by a hinge, and the motor and the oil tank are placed in the fixed box, and the fixed box is provided with a first ventilation plate and a second ventilation plate on one side of the motor, and a rotatable cooling fan is installed between the first ventilation plate and the second ventilation plate, and the fan shaft of the cooling fan is detachably connected to the end of the motor shaft, and the cooling fan is used to rotate and dissipate heat when driven by the motor.

[0005] Preferably, a third ventilation plate is provided on one side of the fixing box located at the oil tank.

[0006] Preferably, a guide plate is fixedly connected to one end of the fan shaft that contacts the motor shaft, and a first spring is provided between the guide plate and the second ventilation plate, and the first spring is used to push the guide plate to connect with the motor shaft.

[0007] Preferably, the guide plate and the motor shaft are connected by a friction plate, a snap-on connection or a suction cup connection.

[0008] Preferably, a limit plate is provided at one end of the fan shaft connected to the first ventilation plate, and the limit plate is used to limit the maximum distance the fan shaft moves under the action of the first spring.

[0009] Preferably, the interior of the fixed box and the movable cover are both provided with a first shock-absorbing heat-conducting plate and a second shock-absorbing heat-conducting plate, one side of the first shock-absorbing heat-conducting plate is in contact with the motor, and the other side is fixed to the inner wall of the fixed box or the movable cover by a second spring;

[0010] One side of the second shock-absorbing and heat-conducting plate is in contact with the oil tank, and the other side is fixed to the inner wall of the fixing box or the movable cover through a third spring.

[0011] Preferably, the first shock-absorbing heat-conducting plate, the second spring, the third shock-absorbing heat-conducting plate and the third spring are all made of metal, and an axial air heat dissipation channel is formed between the first shock-absorbing heat-conducting plate and the second shock-absorbing heat-conducting plate and the inner walls of the fixed box and the movable cover.

[0012] Preferably, a mounting hole is provided on the movable cover, and the mounting hole corresponds to the oil pipe on the oil tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model sets a first ventilation plate and a second ventilation plate, sets a cooling fan between the two ventilation plates, and connects the rotating shaft of the cooling fan to the rotating shaft of the motor. The fan can be driven to rotate and dissipate heat directly by the power of the motor when it is running, and no additional power device is required. The hydraulic power unit can also be protected by setting a movable cover and a fixed box. The setting of the ventilation plate and the cooling fan solves the problem that the existing hydraulic power unit has poor heat dissipation effect and directly affects the normal operation of the hydraulic power unit.

[0015] 2. The utility model can put both ends of the hydraulic power unit in a ventilated state by setting a third ventilation plate, so that air can circulate directly, which is convenient for the cooling fan to dissipate heat. By setting a shock-absorbing heat-conducting plate and a spring, on the one hand, it can play a role in shock absorption and protect the hydraulic power unit. On the other hand, the shock-absorbing heat-conducting plate and the spring are made of metal materials with good thermal conductivity, so that they can act as heat dissipation fins, and form a heat dissipation duct with the inner wall of the fixed box and the movable cover, thereby forming a better integrated heat dissipation mode. The cooling fan uses the power of the motor to transfer the heat of the hydraulic power unit transmitted by the shock-absorbing heat-conducting plate and the spring to the outside of the fixed box, thereby achieving efficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the utility model showing the movable cover in an open state;

[0018] Figure 3 This is a schematic diagram of the heat dissipation fan of the utility model;

[0019] Figure 4 This is a schematic diagram of the fan shaft of the utility model.

[0020] In the figure: 1. fixed box; 2. movable cover; 3. first ventilation plate; 4. second ventilation plate; 5. cooling fan; 6. motor; 7. oil tank; 8. oil pipe; 9. third ventilation plate; 10. fan shaft; 11. motor shaft; 12. first spring; 13. guide plate; 14. friction plate; 15. hinge; 16. first shock-absorbing heat-conducting plate; 17. second spring; 18. second shock-absorbing heat-conducting plate; 19. third spring; 20. limit plate; 21. mounting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A hydraulic power unit with a heat dissipation mechanism includes a fixed box 1, a movable cover 2, a motor 6 and an oil tank 7. The fixed box 1 is connected to the movable cover 2 by a hinge 15. The motor 6 and the oil tank 7 are placed in the fixed box 1. The fixed box 1 is provided with a first ventilation plate 3 and a second ventilation plate 4 on one side of the motor 6. A rotatable heat dissipation fan 5 is installed between the first ventilation plate 3 and the second ventilation plate 4. The fan shaft 10 of the heat dissipation fan 5 is detachably connected to the end of the motor shaft 11. The heat dissipation fan 5 is used to rotate and dissipate heat under the drive of the motor 6. By providing the first ventilation plate 3 and the second ventilation plate 4, and providing the heat dissipation fan 5 between the two ventilation plates, and connecting the shaft of the heat dissipation fan 5 with the shaft of the motor 6, the fan can be directly driven to rotate and dissipate heat by the power of the motor 6 when it is running, without the need to provide a power device separately. The movable cover 2 and the fixed box 1 can also play a protective role on the hydraulic power unit. By providing the ventilation plate and the heat dissipation fan 5, the problem that the existing hydraulic power unit has poor heat dissipation effect and directly affects the normal operation of the hydraulic power unit is solved.

[0023] The fixing box 1 is provided with a third ventilation plate 9 on one side of the oil tank 7. By providing the third ventilation plate 9, both ends of the hydraulic power unit can be in a ventilated state, so that air can flow directly, and the cooling fan 5 is convenient for heat dissipation.

[0024] A guide plate 13 is fixedly connected to one end of the fan shaft 10 that contacts the motor shaft 11. A first spring 12 is arranged between the guide plate 13 and the second ventilation plate 4. The first spring 12 is used to push the guide plate 13 to connect with the motor shaft 11. The spring is arranged to facilitate the installation of the motor 6 while increasing the friction between the fan shaft 10 and the motor shaft 11, so that the click drives the heat dissipation fan 5 to rotate. By setting the guide plate 13 and using a slope at the edge of the guide plate 13, it is convenient to align the motor shaft 11 with the fan shaft 10, and it is convenient to disassemble and maintain the motor 6. The guide plate 13 and the motor shaft 11 are connected by a friction plate 14, a snap-on connection or a suction cup connection. The snap-on or suction cup connection can realize that the motor 6 drives the heat dissipation fan 5 to rotate, and even if there is intermittent relative rotation between the motor shaft 11 and the fan shaft 10, it does not affect the overall heat dissipation effect, as long as the heat dissipation fan 5 can rotate to a certain extent.

[0025] A limit plate 20 is provided at one end of the fan shaft 10 connected to the first ventilation plate 3, and the limit plate 20 is used to limit the maximum distance that the fan shaft 10 moves under the action of the first spring 12. The limit plate 20 can effectively prevent the fan shaft 10 from falling off between the first ventilation plate 3 and the second ventilation plate 4.

[0026] The fixed box 1 and the movable cover 2 are both provided with a first shock-absorbing heat-conducting plate 16 and a second shock-absorbing heat-conducting plate 18. One side of the first shock-absorbing heat-conducting plate 16 is in contact with the motor 6, and the other side is fixed to the inner wall of the fixed box 1 or the movable cover 2 through a second spring 17; one side of the second shock-absorbing heat-conducting plate 18 is in contact with the oil tank 7, and the other side is fixed to the inner wall of the fixed box 1 or the movable cover 2 through a third spring 19. The first shock-absorbing heat-conducting plate 16, the second spring 17, the second shock-absorbing heat-conducting plate 18, and the third spring 19 are all made of metal, and an axial air heat dissipation channel is formed between the first shock-absorbing heat-conducting plate 16 and the second shock-absorbing heat-conducting plate 18 and the inner wall of the fixed box 1 and the movable cover 2. By providing the shock-absorbing heat-conducting plate and the spring, on the one hand, it can play a role in shock absorption, and on the other hand, it can protect the hydraulic power unit. On the other hand, the shock-absorbing heat-conducting plate and the spring are made of metal materials with good thermal conductivity, so that they can act as heat dissipation fins and form a heat dissipation duct with the inner walls of the fixed box 1 and the movable cover 2, thereby forming a better integrated heat dissipation mode. The heat dissipation fan 5 uses the power of the motor 6 to transfer the heat of the hydraulic power unit transmitted by the shock-absorbing heat-conducting plate and the spring to the outside of the fixed box 1, thereby achieving efficient heat dissipation.

[0027] The movable cover 2 is provided with a mounting hole 21, and the mounting hole 21 is arranged corresponding to the oil pipe 8 on the oil tank 7. It is convenient to connect the hydraulic power unit with other components or equipment.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic power unit with a heat dissipation mechanism, comprising a fixed box (1), a movable cover (2), a motor (6) and an oil tank (7), wherein the fixed box (1) and the movable cover (2) are connected via a hinge (15), and the motor (6) and the oil tank (7) are placed in the fixed box (1), characterized in that: The fixing box (1) is provided with a first ventilation plate (3) and a second ventilation plate (4) on one side of the motor (6); a rotatable cooling fan (5) is installed between the first ventilation plate (3) and the second ventilation plate (4); a fan shaft (10) of the cooling fan (5) is detachably connected to the end of the motor shaft (11); and the cooling fan (5) is used to rotate and dissipate heat when driven by the motor (6).

2. A hydraulic power unit with a heat dissipation mechanism according to claim 1, characterized in that: The fixing box (1) is provided with a third ventilation plate (9) on one side of the oil tank (7).

3. The hydraulic power unit with a heat dissipation mechanism according to claim 1, characterized in that: One end of the fan shaft (10) that contacts the motor shaft (11) is fixedly connected with a guide plate (13), and a first spring (12) is provided between the guide plate (13) and the second ventilation plate (4), and the first spring (12) is used to push the guide plate (13) to connect with the motor shaft (11).

4. A hydraulic power unit with a heat dissipation mechanism according to claim 3, characterized in that: The guide plate (13) and the motor shaft (11) are connected by a friction plate (14), a snap-fit ​​connection or a suction cup connection.

5. The hydraulic power unit with a heat dissipation mechanism according to claim 3, characterized in that: A limit plate (20) is provided at one end of the fan shaft (10) connected to the first ventilation plate (3), and the limit plate (20) is used to limit the maximum distance that the fan shaft (10) moves under the action of the first spring (12).

6. The hydraulic power unit with a heat dissipation mechanism according to claim 1, characterized in that: A first shock-absorbing heat-conducting plate (16) and a second shock-absorbing heat-conducting plate (18) are provided inside the fixed box (1) and the movable cover (2); one side of the first shock-absorbing heat-conducting plate (16) is in contact with the motor (6), and the other side is fixed to the inner wall of the fixed box (1) or the movable cover (2) via a second spring (17); One side of the second shock-absorbing heat-conducting plate (18) is in contact with the oil tank (7), and the other side is fixed to the inner wall of the fixing box (1) or the movable cover (2) via a third spring (19).

7. A hydraulic power unit with a heat dissipation mechanism according to claim 6, characterized in that: The first shock-absorbing heat-conducting plate (16), the second spring (17), the third shock-absorbing heat-conducting plate (18), and the third spring (19) are all made of metal, and an axial air heat dissipation channel is formed between the first shock-absorbing heat-conducting plate (16) and the second shock-absorbing heat-conducting plate (18) and the inner walls of the fixed box (1) and the movable cover (2).

8. The hydraulic power unit with a heat dissipation mechanism according to claim 1, characterized in that: The movable cover (2) is provided with a mounting hole (21), and the mounting hole (21) is arranged corresponding to the oil pipe (8) on the oil tank (7).

Images