A heat dissipation vane pump

Abstract

The heat dissipation fan of the present invention is to be connected with the heat dissipation device of the present invention in an orderly manner so as to avoid the occurrence of heat dissipation in the pump casing and cause the pump casing to be evacuated or the like to be out of service.

Description

Technical Field

[0001] The present application relates to the field of vane pumps, and in particular to a heat dissipation vane pump. Background Art

[0002] The vane pump is a pump in which the vanes in the rotor groove are in contact with the pump housing, and the sucked liquid is pressed from the oil inlet side to the oil discharge side. When the vane pump rotor rotates, the vanes are pressed against the inner surface of the stator by the centrifugal force and the pressure oil. In this way, the working volume formed by the two vanes and the inner surface of the rotor and stator first absorbs oil from small to large and then discharges oil from large to small. When the vanes rotate one circle, they complete two oil suction and oil discharges.

[0003] The vane pump will generate a lot of heat when working, but the current vane pump cannot achieve the effect of self-heating and can only rely on an external heat dissipation mechanism for heat dissipation. The heat dissipation mechanism generally uses fan blade rotation to achieve the effect of cooling the vane pump, and the heat dissipation efficiency is low. Therefore, a heat dissipation vane pump is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present application is to solve the technical problem that the existing vane pump adopts low heat dissipation efficiency of fan blades. Compared with the existing technology, a heat dissipation vane pump is provided, including a pump casing, a transmission shaft is rotatably connected in the pump casing, a rotor is fixed on the transmission shaft, the pump casing is provided with a stator matching the rotor, and a cooling fin is also provided on the side of the pump casing away from the transmission shaft. The cooling fin is a disc-shaped aluminum structure, and the cooling fin is detachably connected to the pump casing through assembly holes. A cooling fan is provided on the side of the cooling fin away from the pump casing, and the cooling fan is driven by the transmission shaft. A plurality of vortex plates evenly arranged at equal angles are provided on one side of the cooling fin, and a rear end cover is fixed on the side of the pump casing away from the transmission shaft, an exhaust port is provided on the side of the rear end cover away from the pump casing, and an air inlet is provided on the circumferential side where the rear end cover is connected to the pump casing.

[0005] Furthermore, a driven shaft is rotatably connected to the side of the pump housing away from the transmission shaft, the cooling fan is fixed at one end of the driven shaft, an outer ring is fixed at the other end of the driven shaft, an inner shaft is provided at one end of the transmission shaft extending into the pump housing, an inner ring corresponding to the outer ring is fixed at one end of the inner shaft, and a time-sharing transmission mechanism for connecting the transmission shaft is provided at the other end of the inner shaft.

[0006] Furthermore, the time-sharing transmission mechanism includes a sliding shaft, which is slidably connected to the end of the transmission shaft, and four groups of limit sliders arranged at equal angles are fixed to the end of the sliding shaft opposite to the transmission shaft. The end of the transmission shaft is provided with a limit slide groove matching the limit slider, and a return spring and a heat expansion bag are clamped between the sliding shaft and the transmission shaft. A second friction plate is fixed to the end of the sliding shaft away from the transmission shaft, and a first friction plate corresponding to the second friction plate is fixed to the end of the inner shaft away from the inner ring.

[0007] Furthermore, the return spring has elastic force to drive the sliding shaft close to the transmission shaft. When the return spring is in a free state, a gap is provided between the first friction plate and the second friction plate. The thermal expansion bag is filled with thermal expansion gas, which is carbon dioxide gas.

[0008] Furthermore, the driven shaft, the inner shaft and the sliding shaft are all coaxially arranged with the transmission shaft, and four groups of permanent magnets are evenly and equidistantly fixed on the opposite sides of the outer ring and the inner ring, and the relative permanent magnets between the outer ring and the inner ring have different magnetic properties.

[0009] Furthermore, an inner groove is provided in the vortex plate of the heat dissipating fin, and the inner groove is arranged opposite to the pump casing. An outer bladder is also provided in the inner groove. A heat-conducting silicon wafer is fixed to the side of the outer bladder away from the inner groove. A group of liquid-cooling components is formed between multiple outer bladders through the heat-conducting silicon wafer. Four groups of liquid-cooling components are provided on the heat dissipating fins. The outer bladders of each group of liquid-cooling components are connected and filled with heat dissipating liquid. A diversion mechanism for driving the heat dissipating liquid in the outer bladder to circulate is also provided in the pump casing.

[0010] Furthermore, the flow guiding mechanism includes a mixing chamber and an inner bladder body arranged in the pump casing, an inner fin matching the inner bladder body is arranged in the pump casing, a connecting pipe is connected between the inner bladder body and the outer bladder body, a first one-way pipe is connected between the mixing chamber and the outer bladder body, a second one-way pipe is connected between the mixing chamber and the inner bladder body, an elastic diaphragm is arranged in the mixing chamber, the elastic diaphragm seals and separates the space in the mixing chamber, and a magnetic plate is also fixed on the elastic diaphragm.

[0011] Furthermore, the magnetic poles on both sides of the magnetic plate are different, and the four groups of permanent magnets on the outer ring and the inner ring are arranged adjacent to each other in the circumferential direction according to different magnetic properties.

[0012] Furthermore, the elastic diaphragm has an elastic force that drives the magnetic plate to overcome the magnetic force of the permanent magnet and reset.

[0013] Furthermore, a one-way valve is provided in the first one-way tube and the second one-way tube. The first one-way tube maintains the one-way connectivity of the heat dissipation liquid flowing into the outer sac through the one-way valve, and the second one-way tube maintains the one-way connectivity of the heat dissipation liquid flowing into the mixing chamber through the one-way valve.

[0014] Compared with the prior art, the advantages of this application are:

[0015] (1) The heat generated by the pump casing during operation can be effectively transferred to the heat dissipation fins through the heat dissipation fins with the vortex plate. At the same time, the rotation of the transmission shaft drives the heat dissipation fan to rotate. The suction force generated by the heat dissipation fan is used to inhale external air from the air inlet side. The inhaled air passes through the gap of the vortex plate, accelerating the flow rate of the air. At the same time, it can fully contact the vortex plate and be discharged from the exhaust port, so as to quickly and effectively exchange the heat generated by the pump casing with the external air, thereby achieving the purpose of reducing the operation stability of the pump casing and quickly dissipating the heat.

[0016] (2) By utilizing the structural design of the outer ring and inner ring with different magnetic properties, the transmission shaft is used inside the pump housing to drive the inner shaft and inner ring to rotate, and the magnetic attraction between the outer ring and the inner ring is used outside the pump housing for non-contact power transmission. As a result, there is no need to open a rotating hole corresponding to the driven shaft in the pump housing, so that the airtightness inside the pump housing is guaranteed and the risk of leakage is reduced.

[0017] (3) The cooling fan 4 can be turned on and off autonomously according to the operating temperature of the vane pump, which can effectively reduce energy consumption. At the same time, the cooling liquid is combined to realize the liquid cooling function, further improving the cooling efficiency. It has market prospects and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front structure of this application;

[0019] Figure 2 This is a schematic diagram of the back structure of this application;

[0020] Figure 3 This is a schematic diagram of the structure when the rear end cover is separated from the pump casing proposed in this application;

[0021] Figure 4 It is a schematic diagram of the heat dissipation fin and the exploded structure of the heat dissipation fin proposed in this application;

[0022] Figure 5 It is a schematic diagram of the internal structure proposed in this application;

[0023] Figure 6 It is a schematic diagram of the exploded structure of the heat dissipation fin and its internal components proposed in this application;

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of this application;

[0025] Figure 8 This is a schematic diagram of the installation positions of the outer ring and the inner ring proposed in this application;

[0026] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of the middle part A;

[0027] Fig.10 It is a structural schematic diagram of the flow diversion mechanism proposed in this application;

[0028] Fig.11 It is a schematic diagram of the structure of the inner fin proposed in this application;

[0029] Fig.12 It is a schematic cross-sectional structure diagram of the flow guiding mechanism proposed in this application;

[0030] Fig.13 Schematic diagram of the magnetic pole distribution of the outer ring, inner ring and magnetic plate proposed in this application.

[0031] Description of the numbers in the figure:

[0032] Pump housing 1, stator 11, rotor 12, inner fin 13, rear end cover 2, exhaust port 21, air inlet 22, transmission shaft 3, cooling fan 4, cooling fin 5, vortex plate 51, inner groove 511, assembly hole 52, thermal conductive silicon sheet 53, outer capsule 54, flow guide mechanism 6, inner capsule 61, connecting pipe 611, mixing chamber 62, first one-way tube 621, second one-way tube 622, elastic diaphragm 623, magnetic plate 624, driven shaft 7, outer ring 71, inner shaft 8, inner ring 81, first friction plate 82, sliding shaft 9, limit slider 91, return spring 92, thermal expansion bag 93, second friction plate 94. DETAILED DESCRIPTION

[0033] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0034] Embodiment 1:

[0035] The present invention provides a heat dissipation vane pump, see Figure 1-5 , including a pump casing 1, a transmission shaft 3 is rotatably connected inside the pump casing 1, a rotor 12 is fixed on the transmission shaft 3, the pump casing 1 is provided with a stator 11 matching the rotor 12, a side of the pump casing 1 away from the transmission shaft 3 is also provided with a heat dissipation fin 5, the heat dissipation fin 5 is a disc-shaped aluminum structure, the heat dissipation fin 5 is detachably connected to the pump casing 1 through an assembly hole 52, a heat dissipation fan 4 is provided on the side of the heat dissipation fin 5 away from the pump casing 1, the heat dissipation fan 4 is driven by the transmission shaft 3, a side of the heat dissipation fin 5 is provided with a plurality of vortex plates 51 evenly arranged at equal angles, a rear end cover 2 is also fixed on the side of the pump casing 1 away from the transmission shaft 3, an exhaust port 21 is provided on the side of the rear end cover 2 away from the pump casing 1, and an air inlet 22 is provided on the circumferential side where the rear end cover 2 is connected to the pump casing 1.

[0036] In this embodiment, the heat generated by the operation of the pump casing 1 can be effectively transferred to the heat dissipation fins 5 through the heat dissipation fins 5 with the vortex plates 51. At the same time, the rotation of the transmission shaft 3 drives the heat dissipation fan 4 to rotate. The suction force generated by the heat dissipation fan 4 is used to inhale external air from the air inlet 22 side. The inhaled air passes through the gap of the vortex plate 51, thereby accelerating the flow rate of the air. At the same time, the air can fully contact the vortex plate 51 and be discharged from the exhaust port 21, so as to quickly and effectively exchange the heat generated by the operation of the pump casing 1 with the external air, thereby achieving the purpose of reducing the operation stability of the pump casing 1 and quickly dissipating the heat.

[0037] Embodiment 2:

[0038] The present invention provides a heat dissipation vane pump, see Figure 1-13 , wherein the components identical or corresponding to those in Embodiment 1 are marked with the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 are described below:

[0039] A driven shaft 7 is also rotatably connected to the side of the pump housing 1 away from the transmission shaft 3, a cooling fan 4 is fixed at one end of the driven shaft 7, an outer ring 71 is fixed to the other end of the driven shaft 7, an inner shaft 8 is provided at one end of the transmission shaft 3 extending into the pump housing 1, an inner ring 81 corresponding to the outer ring 71 is fixed to one end of the inner shaft 8, four groups of permanent magnets are evenly spaced and fixed on the opposite side of the outer ring 71 and the inner ring 81, and the magnetic properties of the permanent magnets relative to each other between the outer ring 71 and the inner ring 81 are different.

[0040] By utilizing the structural design of the outer ring 71 and the inner ring 81 with different magnetic properties, the transmission shaft 3 is used to drive the inner shaft 8 and the inner ring 81 to rotate inside the pump casing 1, and the magnetic attraction between the outer ring 71 and the inner ring 81 is used outside the pump casing 1 for non-contact power transmission. As a result, there is no need to open a rotating hole corresponding to the driven shaft 7 in the pump casing 1, so that the airtightness inside the pump casing 1 is guaranteed and the risk of leakage is reduced.

[0041] See also Figure 7-9 In order to prevent the transmission shaft 3 from performing ineffective follow-up rotation and consuming the power of the transmission shaft 3 when the cooling fan 4 is running at low power, a time-sharing transmission mechanism for connecting the transmission shaft 3 is provided at the other end of the inner shaft 8. The time-sharing transmission mechanism includes a sliding shaft 9. The driven shaft 7, the inner shaft 8 and the sliding shaft 9 are all coaxially arranged with the transmission shaft 3. The sliding shaft 9 is slidably connected to the end of the transmission shaft 3. Four groups of limit sliders 91 arranged at equal angles are fixed to the end of the sliding shaft 9 opposite to the transmission shaft 3. A limit slide groove matching the limit slider 91 is provided at the end of the transmission shaft 3. A reset spring 92 and a thermal expansion bag 93 are clamped between the sliding shaft 9 and the transmission shaft 3. A second friction plate 94 is fixed to the end of the sliding shaft 9 away from the transmission shaft 3, and a first friction plate 82 corresponding to the second friction plate 94 is fixed to the end of the inner shaft 8 away from the inner ring 81.

[0042] It should be noted that the return spring 92 has an elastic force that drives the sliding shaft 9 to approach the transmission shaft 3. When the return spring 92 is in a free state, a gap is provided between the first friction plate 82 and the second friction plate 94. The thermal expansion bag 93 is filled with thermal expansion gas, which is carbon dioxide gas.

[0043] When the transmission shaft 3 is running at low power and the temperature generated by the operation of the pump housing 1 is lower than the safe temperature, the volume of the heat-expanding gas in the heat-expanding bag 93 is reduced due to the heat expansion. Under the elastic force of the return spring 92, the sliding shaft 9 approaches the transmission shaft 3, so that the second friction plate 94 is separated from the first friction plate 82, and the power transmission between the inner shaft 8 and the sliding shaft 9 is cut off. Under the premise of not occupying the transmission shaft 3, the heat dissipation fins 5 are used alone for heat dissipation;

[0044] When the transmission shaft 3 is running at high power and the temperature generated by the operation of the pump housing 1 is higher than the safe temperature, the volume of the thermal expansion gas in the thermal expansion bag 93 increases due to the heat expansion, so that the sliding shaft 9 overcomes the elastic force of the return spring 92 and approaches the transmission shaft 3, so that the second friction plate 94 conflicts with the first friction plate 82, and the friction force between the second friction plate 94 and the first friction plate 82 is used to transmit power between the inner shaft 8 and the sliding shaft 9, and then the magnetic attraction between the outer ring 71 and the inner ring 81 is used for non-contact power transmission, and the rotation of the cooling fan 4 is used to cooperate with the cooling fins 5 for efficient heat dissipation, so that the function of autonomously starting the cooling fan 4 can be realized.

[0045] Embodiment 3:

[0046] The present invention provides a heat dissipation vane pump, see Figure 1-13 , wherein the components identical or corresponding to those in Embodiment 2 are marked with the corresponding reference numerals in Embodiment 2. For the sake of simplicity, only the differences from Embodiment 1 are described below:

[0047] In this embodiment, an inner groove 511 is provided in the vortex plate 51 of the heat dissipating fin 5, and the inner groove 511 is arranged opposite to the pump casing 1. An outer bladder 54 is also provided in the inner groove 511. A heat-conducting silicon sheet 53 is fixed to the side of the outer bladder 54 away from the inner groove 511. A group of liquid-cooling components is formed between multiple outer bladders 54 through the heat-conducting silicon sheets 53. Four groups of liquid-cooling components are provided on the heat dissipating fin 5. The outer bladders 54 of each group of liquid-cooling components are connected and filled with heat dissipating liquid. A guide mechanism 6 for driving the heat dissipating liquid in the outer bladder 54 to circulate is also provided in the pump casing 1.

[0048] See also Figure 10-13 The flow guiding mechanism 6 includes a mixing chamber 62 and an inner bladder body 61 arranged in the pump housing 1. The pump housing 1 is provided with an inner fin 13 matching the inner bladder body 61. A connecting pipe 611 is connected between the inner bladder body 61 and the outer bladder body 54. A first one-way tube 621 is connected between the mixing chamber 62 and the outer bladder body 54. A second one-way tube 622 is connected between the mixing chamber 62 and the inner bladder body 61. One-way valves are provided in the first one-way tube 621 and the second one-way tube 622. The first one-way tube 621 maintains the one-way connectivity of the heat dissipation liquid flowing into the outer bladder body 54 through the one-way valve, and the second one-way tube 622 maintains the one-way connectivity of the heat dissipation liquid flowing into the mixing chamber 62 through the one-way valve.

[0049] It should be noted that an elastic diaphragm 623 is provided in the mixing chamber 62, and the elastic diaphragm 623 seals and separates the space in the mixing chamber 62. A magnetic plate 624 is also fixed on the elastic diaphragm 623. Furthermore, the magnetic poles on both sides of the magnetic plate 624 are different, and the four groups of permanent magnets on the outer ring 71 and the inner ring 81 are arranged adjacent to each other in the circumferential direction according to different magnetic properties. The elastic diaphragm 623 has an elastic force to drive the magnetic plate 624 to overcome the magnetic force of the permanent magnet for reset.

[0050] In this embodiment, when the transmission shaft 3 is running at low power, the outer ring 71 and the inner ring 81 do not rotate due to the restriction of the time-sharing transmission mechanism, and the cooling liquid circulates and heat exchanges between the outer capsule 54 and the inner capsule 61 through the connecting pipe 611. When the transmission shaft 3 is running at high power, the time-sharing transmission mechanism links the inner shaft 8 and the sliding shaft 9 to transmit power, and the outer ring 71 and the inner ring 81 rotate. The permanent magnets on the outer ring 71 and the inner ring 81 are used to intermittently adsorb and repel the two sides of the driving magnetic plate 624. Combined with the elastic force of the elastic diaphragm 623, the magnetic plate 624 swings back and forth, thereby accelerating the suction of the cooling liquid in the inner capsule 61 into the mixing chamber 62, and then expelling the cooling liquid in the mixing chamber 62 into the outer capsule 54, and cooperating with the connecting pipe 611 to form a circulation loop, thereby achieving the purpose of accelerating the flow of the cooling liquid and further improving the heat dissipation efficiency.

[0051] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A heat dissipation vane pump, comprising a pump housing (1), a transmission shaft (3) rotatably connected to the pump housing (1), a rotor (12) being fixed to the transmission shaft (3), the pump housing (1) being provided with a stator (11) matching the rotor (12), characterized in that: A heat dissipation fin (5) is further provided on the side of the pump housing (1) away from the transmission shaft (3), the heat dissipation fin (5) being a disc-shaped aluminum structure, the heat dissipation fin (5) being detachably connected to the pump housing (1) via an assembly hole (52), a heat dissipation fan (4) is provided on the side of the heat dissipation fin (5) away from the pump housing (1), the heat dissipation fan (4) is driven by the transmission shaft (3), a plurality of vortex plates (51) are provided on one side of the heat dissipation fin (5) and are evenly distributed at equal angles, a rear end cover (2) is further fixed on the side of the pump housing (1) away from the transmission shaft (3), an exhaust port (21) is provided on the side of the rear end cover (2) away from the pump housing (1), and an air inlet (22) is provided on the circumferential side of the rear end cover (2) connected to the pump housing (1); A driven shaft (7) is rotatably connected to a side of the pump housing (1) away from the transmission shaft (3); the cooling fan (4) is fixed to one end of the driven shaft (7); an outer ring (71) is fixed to the other end of the driven shaft (7); an inner shaft (8) is provided at one end of the transmission shaft (3) extending into the pump housing (1); an inner ring (81) corresponding to the outer ring (71) is fixed to one end of the inner shaft (8); and a time-sharing transmission mechanism for connecting to the transmission shaft (3) is provided at the other end of the inner shaft (8); The time-sharing transmission mechanism comprises a sliding shaft (9), the sliding shaft (9) being slidably connected to the end of the transmission shaft (3), four groups of limit sliders (91) being evenly arranged at equal angles being fixed to the end of the sliding shaft (9) opposite to the transmission shaft (3), a limit slide groove matching the limit slider (91) being provided at the end of the transmission shaft (3), a return spring (92) and a thermal expansion bag (93) being clamped between the sliding shaft (9) and the transmission shaft (3), a second friction plate (94) being fixed to the end of the sliding shaft (9) away from the transmission shaft (3), and a first friction plate (82) corresponding to the second friction plate (94) being fixed to the end of the inner shaft (8) away from the inner ring (81); The return spring (92) has an elastic force that drives the sliding shaft (9) to approach the transmission shaft (3); when the return spring (92) is in a free state, a gap is provided between the first friction plate (82) and the second friction plate (94); the thermal expansion bag (93) is filled with thermal expansion gas, and the thermal expansion gas is carbon dioxide gas; The driven shaft (7), the inner shaft (8), and the sliding shaft (9) are all coaxially arranged with the transmission shaft (3); four groups of permanent magnets are evenly and equidistantly fixed on opposite sides of the outer ring (71) and the inner ring (81); and the permanent magnets facing each other between the outer ring (71) and the inner ring (81) have different magnetic properties; An inner groove (511) is provided in the spiral plate (51) of the heat dissipating fin (5), the inner groove (511) being arranged opposite to the pump housing (1), an outer bladder (54) is also provided in the inner groove (511), a heat-conducting silicon sheet (53) is fixed to the side of the outer bladder (54) away from the inner groove (511), a group of liquid cooling components is formed by a plurality of the outer bladders (54) through the heat-conducting silicon sheets (53), four groups of liquid cooling components are provided on the heat dissipating fin (5), the outer bladders (54) of each group of liquid cooling components are arranged in communication, the outer bladders (54) are filled with heat dissipating liquid, and a flow guide mechanism (6) for driving the heat dissipating liquid in the outer bladders (54) to circulate is also provided in the pump housing (1); The flow guide mechanism (6) comprises a mixing chamber (62) and an inner bladder body (61) arranged in a pump housing (1); an inner fin (13) matching the inner bladder body (61) is arranged in the pump housing (1); a connecting pipe (611) is connected between the inner bladder body (61) and the outer bladder body (54); a first one-way pipe (621) is connected between the mixing chamber (62) and the outer bladder body (54); a second one-way pipe (622) is connected between the mixing chamber (62) and the inner bladder body (61); an elastic diaphragm (623) is arranged in the mixing chamber (62); the elastic diaphragm (623) seals and separates the space in the mixing chamber (62); and a magnetic plate (624) is also fixed on the elastic diaphragm (623).

2. A heat dissipation vane pump according to claim 1, characterized in that: The magnetic poles on both sides of the magnetic plate (624) are different, and the four groups of permanent magnets on the outer ring (71) and the inner ring (81) are arranged adjacent to each other in the circumferential direction according to different magnetic properties.

3. A heat dissipation vane pump according to claim 2, characterized in that: The elastic diaphragm (623) has an elastic force that drives the magnetic plate (624) to overcome the magnetic force of the permanent magnet and perform resetting.

4. A heat dissipation vane pump according to claim 1, characterized in that: Both the first one-way tube (621) and the second one-way tube (622) are provided with one-way valves; the first one-way tube (621) maintains one-way connectivity for the heat dissipation liquid to flow into the outer bladder (54) through the one-way valve, and the second one-way tube (622) maintains one-way connectivity for the heat dissipation liquid to flow into the mixing chamber (62) through the one-way valve.

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