Heat dissipation device for electric actuator body

Abstract

The present invention discloses a heat dissipation device for an electric actuator body in the technical field of electric actuators, comprising an electric actuator, a base and a pipeline; the electric actuator comprises an outer shell, and a heat exchange groove is provided on the side wall of the outer shell; the base comprises a bottom plate and an arc-shaped support plate, and a liquid collecting groove is provided on the side wall of the arc-shaped support plate, and the interior of the liquid collecting groove is filled with low-boiling-point liquid; the pipeline is respectively connected to the outer shell and the arc-shaped support plate and is respectively connected to the inner cavity of the heat exchange groove and the liquid collecting groove, and the low-boiling-point liquid in the liquid collecting groove is guided to the inner cavity of the heat exchange groove through the pipeline to exchange heat with the outer shell for evaporation and cooling. This heat dissipation device for the electric actuator body guides the low-boiling-point liquid into the heat exchange groove through the pipeline to exchange heat with the outer shell, and the low-boiling-point liquid evaporates after being heated, and the heat on the outer shell is taken away by the evaporation of the liquid, so that the outer shell can be effectively cooled and the working life of the electric actuator is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric actuators, and in particular to a heat dissipation device for an electric actuator body. Background Art

[0002] Electric actuators are electromagnetic components that convert electrical energy into mechanical energy to achieve reciprocating or rotary motion. Commonly used ones include DC servo motors, AC servo motors, stepper motors, electromagnetic brakes, relays, etc. Electric actuators have the performance of wide speed regulation range, high sensitivity, fast response speed, no self-rotation phenomenon, and can work continuously and reliably for a long time. Under special environmental conditions, they can also meet special requirements such as explosion-proof, corrosion-resistant, and high temperature resistance. With the development of automatic control technology, the varieties of electric actuators are constantly updated and the performance is continuously improved. Brushless motors, low inertia motors, slow motors, linear motors, planar motors, etc. are all new electric actuators with great development prospects.

[0003] When the electric actuator is working, a large amount of heat will be generated inside. A large amount of heat accumulation will cause damage to the electric actuator. Therefore, when the electric actuator is working, its body will be cooled. The existing cooling methods are air cooling and liquid cooling. Air cooling drives the fan blades to rotate through its own rotational power, and the rotation of the fan blades drives the air flow to take away the high temperature inside the electric actuator. However, air cooling requires the inside and outside of the electric actuator to be interconnected to facilitate the entry of external air into the inside of the electric actuator. Since the inside and outside of the electric actuator are interconnected, impurities in the external air will enter the inside of the electric actuator and cause the circulation of the electric actuator. Water cooling requires complex water channels to be reserved on the outer shell of the electric actuator to facilitate the flow of liquid. The electric actuator is cooled by the flow of liquid. However, the arrangement of the water channels makes the processing of the outer shell of the electric actuator difficult and increases the cost. At the same time, the water channels require excellent sealing measures to prevent liquid from entering the inside of the electric actuator and causing damage to the electric actuator. Therefore, how to effectively cool the electric actuator while avoiding dust, impurities and liquid from damaging the electric actuator is a problem that needs to be solved by technicians in this technical field. Summary of the invention

[0004] The object of the present invention is to provide a heat dissipation device for an electric actuator body, so as to solve the problem proposed in the above background technology that the electric actuator can be effectively cooled while avoiding damage to the electric actuator by dust, impurities and liquid.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat dissipation device for an electric actuator body, comprising an electric actuator, a base and a pipeline;

[0006] The electric actuator comprises a shell, and a heat exchange groove is provided on a side wall of the shell;

[0007] The base comprises a bottom plate and an arc-shaped support plate, wherein the arc-shaped support plate is arranged at the upper end of the bottom plate and is detachably connected to the shell, and a liquid collecting groove is provided on the side wall of the arc-shaped support plate, and the interior of the liquid collecting groove is filled with a low-boiling-point liquid;

[0008] The pipeline is connected to the shell and the arc-shaped support plate respectively and is connected to the inner cavity of the heat exchange tank and the liquid collecting tank respectively, and the low-boiling point liquid in the liquid collecting tank is guided to the inner cavity of the heat exchange tank through the pipeline to exchange heat with the shell for evaporation and cooling;

[0009] A control system is arranged on the circumferential outer side wall of the housing.

[0010] Preferably, the electric actuator further includes:

[0011] A front end cover, the front end cover is detachably mounted on the end of the housing;

[0012] An inner end cover, the inner end cover being detachably mounted on an end of the outer shell away from the front end cover;

[0013] A rear end cover, the rear end cover is detachably mounted on an end of the housing away from the front end cover, and the rear end cover is arranged on the outside of the inner end cover;

[0014] A stator core, wherein the stator core is arranged in the inner cavity of the shell;

[0015] The rotor is arranged in the inner cavity of the shell and on the inner side of the stator core, and the rotor is movably connected to the front end cover and the inner end cover respectively.

[0016] Preferably, the rotor comprises:

[0017] Rotor core;

[0018] Gaskets, the gaskets are arranged at both ends of the rotor core and rotate with the rotor core, and the ends of the gaskets are provided with first blades, and the first blades rotate with the gaskets to drive the internal gas flow of the housing;

[0019] A rotating shaft, the rotating shaft is connected to the rotor core and the gasket respectively and rotates with the rotor core, and two ends of the rotating shaft pass through the gasket and are movably connected to the front end cover and the inner end cover respectively and pass through the side walls of the front end cover and the inner end cover respectively;

[0020] The mounting plate is arranged at the end of the rotating shaft and rotates with the rotating shaft. The mounting plate is arranged in the inner cavity of the rear end cover. The side wall of the mounting plate is provided with a second fan blade.

[0021] Preferably, a ventilation slot is provided through the end of the shell;

[0022] A mounting boss which is in communication with the heat exchange groove is arranged on the circumferential outer wall of the shell, a sealing block is detachably mounted on the inner top of the mounting boss, a connecting port which is connected with the pipeline is penetrated through the top of the sealing block, and the connecting port is in communication with the heat exchange groove;

[0023] A refrigerator communicating with the interior of the ventilation slot is arranged on the circumferential outer wall of the shell.

[0024] Preferably, the base further comprises a mounting shaft;

[0025] The installation shaft is vertically arranged at the top edge of the bottom plate, and a connecting hole is opened at the end of the installation shaft.

[0026] Preferably, an air inlet interface communicating with the inner cavity of the liquid collecting tank is provided at the top of the inner arc surface of the arc-shaped support plate;

[0027] A liquid discharge interface communicating with the inner cavity of the liquid collecting tank is disposed at the bottom of the outer arc surface of the arc-shaped support plate, and the liquid discharge interface is connected to the pipeline.

[0028] Preferably, it further comprises a driving assembly, wherein the driving assembly is connected to the electric actuator and the base respectively, and the driving assembly comprises:

[0029] A worm, the worm being installed in the inner cavity of the electric actuator and driven to rotate by the electric actuator;

[0030] A transmission mechanism, the transmission mechanism is connected to the worm and is used to transmit the power generated by the worm;

[0031] The working piece is connected with the transmission mechanism, and the power is transmitted to the working piece through the transmission mechanism. The working piece generates pressure to reduce the boiling point of the liquid and pumps it into the inner cavity of the pipeline.

[0032] Preferably, the transmission mechanism comprises:

[0033] a driving gear meshing with the worm;

[0034] A transmission rod connected to the driving gear;

[0035] A transmission gear connected to an end of the transmission rod away from the driving gear;

[0036] A driven gear is meshed with the transmission gear.

[0037] Preferably, the workpiece includes:

[0038] A crank, wherein a first connecting shaft is disposed on the top of the crank, a second connecting shaft is disposed on the bottom of the crank, the second connecting shaft and the first connecting shaft are disposed coaxially, and a first connecting plate and a second connecting plate are movably connected to the inner side of the crank;

[0039] A driving rod sleeve, wherein a first connecting block is disposed at an end of a circumferential outer wall of the driving rod sleeve, the first connecting block is movably connected to an end of the second connecting piece away from the crank, and a first piston is disposed at an end of the driving rod sleeve away from the first connecting block;

[0040] A driving rod, the driving rod is movably connected to the driving rod sleeve, a second connecting block is provided at the end of the circumferential outer wall of the driving rod, the second connecting block is movably connected to an end of the first connecting plate away from the crank, and a second piston is provided at an end of the driving rod away from the second connecting block.

[0041] Preferably, the control system comprises:

[0042] A collection module, wherein the collection module is used to collect liquid level data and temperature data;

[0043] A storage module, wherein the storage module stores comparison data to be compared with the liquid level data and the temperature data;

[0044] A timer, wherein the timer is used to collect execution time data;

[0045] A processing module, the processing module is electrically connected to the acquisition module, the storage module and the timer, and is used to compare the acquired data with the comparison data, perform data analysis based on the time data, and output the comparison data;

[0046] A control module is electrically connected to the processing module and is used to receive the comparison data output by the processing module and output different control signals according to the comparison data.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] The low-boiling-point liquid in the inner cavity of the liquid collecting tank enters the inner cavity of the heat exchange tank through the main pipe and the branch pipe to exchange heat with the heat in the inner cavity of the heat exchange tank. Due to the low boiling point of the liquid, it evaporates quickly during the heat exchange in the inner cavity of the heat exchange tank, and the outer shell is cooled by the phenomenon of evaporation and heat absorption, thereby effectively dissipating heat and cooling the inner cavity of the outer shell;

[0049] Since the device cools the shell by evaporative heat dissipation, there is no need to design complex water channels to achieve the purpose of liquid circulation, and the manufacturing cost is low. At the same time, the liquid only flows inside the heat exchange tank and will not enter the inner cavity of the shell to cause damage to the electric actuator.

[0050] The rotor core can rotate inside the stator core, the gasket rotates with the rotor core, and the first blade rotates with the gasket. The first blade disturbs the air flow in the inner cavity of the shell, so that the air in the inner cavity of the shell can be in flow contact with the inner cavity side wall of the shell and the stator core and the rotor core, so that the air in the inner cavity of the shell can quickly exchange heat with the inner cavity of the heat exchange slot, thereby effectively cooling the inner cavity of the shell;

[0051] The mounting plate rotates with the rotating shaft, and a first fan blade is integrally formed on a side of the mounting plate away from the rotating shaft. The first fan blade is driven to rotate by the mounting plate, and the air in the inner cavity of the rear end cover is driven to be discharged by the rotation of the first fan blade, forming a low pressure in the inner cavity of the rear end cover, and the external air enters the inner cavity of the rear end cover through the ventilation slot, dissipating heat from the bottom space of the inner cavity of the shell, further reducing the temperature of the inner cavity of the shell;

[0052] The arc-shaped support plate is cooled by the cold end of the refrigerator, so as to achieve the purpose of cooling the inner cavity of the liquid collecting tank. The steam enters the inner cavity of the liquid collecting tank through the air inlet interface to be condensed and liquefied into liquid again. The liquefied liquid flows back to the inner cavity of the heat exchange tank through the pipeline to cool the outer shell. This cycle can effectively achieve the purpose of heat dissipation of the electric actuator and ensure the service life of the electric actuator.

[0053] Through the two sets of pistons, the liquid can be quickly pumped into the inner cavity of the heat exchange tank with a small stroke to cool the outer shell. At the same time, the two sets of pistons can pump out liquid and draw in gas regardless of whether they are moving towards each other or in opposite directions. There is no pause in the process, which improves the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the structure of the present invention;

[0055] Figure 2 It is a partial cross-sectional schematic diagram of the electric actuator of the present invention;

[0056] Figure 3 It is a schematic cross-sectional view of the housing portion of the present invention;

[0057] Figure 4 This is a schematic diagram of the rotor structure of the present invention;

[0058] Figure 5 It is a schematic cross-sectional view of the base portion of the present invention;

[0059] Figure 6 This is a schematic diagram of the pipeline structure of the present invention;

[0060] Figure 7 This is a schematic diagram of the connection between the drive assembly of the present invention and the electric actuator and the base;

[0061] Figure 8 This is a schematic diagram of the drive assembly structure of the present invention;

[0062] Fig. 9 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0063] Fig.10 It is a schematic diagram of the working piece structure of the present invention;

[0064] Fig.11 The present invention is Fig.10 Figure A is an enlarged schematic diagram.

[0065] In the figure: 100 electric actuator, 110 housing, 111 heat exchange groove, 1111 exhaust interface, 112 ventilation groove, 113 mounting boss, 114 sealing block, 1141 connection port, 115 refrigerator, 120 front end cover, 130 inner end cover, 140 rear end cover, 150 stator core, 160 rotor, 161 rotor core, 162 gasket, 1621 first fan blade, 163 rotating shaft, 164 mounting plate, 1641 second fan blade, 200 base, 210 bottom plate, 220 arc support plate, 221 liquid collecting tank, 222 air inlet interface, 223 Drain interface, 230 mounting shaft, 300 pipeline, 310 main pipeline, 320 branch pipeline, 400 drive assembly, 410 worm, 420 transmission mechanism, 421 driving gear, 422 transmission rod, 423 transmission gear, 424 driven gear, 430 working part, 431 crank, 4311 first connecting shaft, 4312 second connecting shaft, 4313 first connecting plate, 4314 second connecting plate, 432 drive rod sleeve, 4321 first connecting block, 4322 first piston, 433 drive rod, 4331 second connecting block, 4332 second piston. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] The present invention provides a heat dissipation device for the electric actuator body, which guides the low-boiling point liquid into the heat exchange groove through the pipeline to exchange heat with the shell. The low-boiling point liquid evaporates after being heated, and the heat on the shell is taken away by the evaporation of the liquid, which can effectively dissipate the heat of the shell and ensure the working life of the electric actuator. Please refer to Figure 1 , including: an electric actuator 100, a base 200, a pipeline 300 and a driving assembly 400.

[0068] Example 1: Please refer to Figure 1-Figure 3 and Figure 5-Figure 6 , including an electric actuator 100, a base 200 and a pipe 300, the electric actuator 100 and the base 200 are detachably connected, and the pipe 300 is connected to the electric actuator 100 and the base 200 respectively;

[0069] The electric actuator 100 includes a housing 110 , which is a hollow cylindrical structure;

[0070] The circumferential side wall of the housing 110 is provided with a heat exchange groove 111, which occupies three quarters of the entire circumference. When the electric actuator 100 is working, the high temperature generated inside it is transferred to the inner side of the heat exchange groove 111 through the housing 110;

[0071] The base 200 includes a bottom plate 210 and an arc-shaped support plate 220;

[0072] The arc-shaped support plate 220 is integrally formed on the top of the bottom plate 210. The arc of the arc-shaped support plate 220 is the same as the arc of the outer circumferential wall of the housing 110. The arc-shaped support plate 220 is detachably connected to the housing 110. The housing 110 can be fixed on the ground or other work surfaces through the arc-shaped support plate 220 and the bottom plate 210.

[0073] A liquid collecting groove 221 is provided on the curved side wall of the arc-shaped support plate 220, and the liquid collecting groove 221 occupies nine tenths of the entire arc surface. The inner cavity of the arc-shaped support plate 220 is connected with the inner cavity of the heat exchange groove 111. The interior of the liquid collecting groove 221 is filled with a liquid with a low boiling point. The boiling point of the selected liquid is between 50-60°C, and the freezing point is between -50--70°C, which can effectively dissipate heat and prevent ice from forming when the ambient temperature is low.

[0074] The pipeline 300 includes a main pipeline 310 and a branch pipeline 320;

[0075] The branch pipe 320 is integrally formed at the end of the main pipe 310, and the branch pipe 320 is connected to the inner cavity of the main pipe 310;

[0076] One end of the main pipe 310 away from the branch pipe 320 is detachably connected to the arc-shaped support plate 220 and is connected to the inner cavity of the liquid collecting tank 221;

[0077] One end of the branch pipe 320 away from the main pipe 310 is detachably connected to the housing 110 and is in communication with the inner cavity of the heat exchange tank 111. The branch pipe 320 has a plurality of liquid outlets for discharging liquid, which can evenly spray the liquid on the inner cavity of the heat exchange tank 111 to perform heat exchange with the heat transferred to the inner cavity of the heat exchange tank 111.

[0078] The low boiling point liquid in the inner cavity of the liquid collecting tank 221 enters the inner cavity of the heat exchange tank 111 through the main pipe 310 and the branch pipe 320 to perform heat exchange with the heat in the inner cavity of the heat exchange tank 111. Since the boiling point of the liquid is low, it evaporates quickly when performing heat exchange in the inner cavity of the heat exchange tank 111, and the outer shell 110 is cooled by the phenomenon of evaporation and heat absorption, thereby effectively dissipating heat and cooling the inner cavity of the outer shell 110.

[0079] Since the device cools the housing 110 by evaporative heat dissipation, there is no need to design complex water channels to achieve liquid circulation, and the manufacturing cost is low. At the same time, the liquid only flows inside the heat exchange groove 111 and will not enter the inner cavity of the housing 110 to cause damage to the electric actuator.

[0080] Example 2: Please refer to Figure 1-Figure 4 A ventilation slot 112 is provided at the end of the housing 110. The ventilation slot 112 vertically penetrates the other end of the housing 110. The ventilation slot 112 occupies three fifths of the remaining one fourth of the entire circumference of the housing 110. The ventilation slot 112 is adjacent to the heat exchange slot 111 but is not connected thereto.

[0081] The electric actuator 100 further includes a front end cover 120 , an inner end cover 130 , a rear end cover 140 , a stator core 150 and a rotor 160 ;

[0082] The front end cover 120 is detachably mounted on the end of the housing 110. The outer diameter of the front end cover 120 matches the inner diameter of the housing 110. A sealing treatment is performed between the front end cover 120 and the housing 110.

[0083] The inner end cover 130 is detachably mounted on the end of the outer shell 110 away from the front end cover 120. The outer diameter of the inner end cover 130 matches the inner diameter of the outer shell 110. The inner end cover 130 and the front end cover 120 are symmetrically arranged. The inner end cover 130 and the outer shell 110 are sealed. The front end cover 120 and the inner end cover 130 can prevent dust and impurities in the external environment from entering the inner cavity of the outer shell 110.

[0084] The rear end cover 140 is detachably mounted on the end of the housing 110 away from the front end cover 120. The inner diameter of the rear end cover 140 matches the outer diameter of the housing 110. The inner end cover 130 is disposed in the inner cavity of the rear end cover 140. The ventilation slot 112 is connected to the rear end cover 140.

[0085] The stator core 150 is coaxially mounted in the inner cavity of the housing 110 , and the rotor 160 is coaxially mounted in the inner cavity of the housing 110 and disposed on the inner side of the stator core 150 ;

[0086] The rotor 160 includes a rotor core 161, a gasket 162, a rotating shaft 163 and a mounting plate 164;

[0087] The rotor core 161 is coaxially suspended inside the stator core 150;

[0088] The gasket 162 is detachably mounted on both ends of the rotor core 161. A first blade 1621 is integrally formed on one side of the gasket 162 away from the rotor core 161. The rotor core 161 can rotate inside the stator core 150. The gasket 162 rotates with the rotor core 161. The first blade 1621 rotates with the gasket 162. The air flow in the inner cavity of the housing 110 is disturbed by the first blade 1621, so that the air in the inner cavity of the housing 110 can flow-contact with the inner cavity side wall of the housing 110, the stator core 150 and the rotor core 161, so that the air in the inner cavity of the housing 110 can quickly exchange heat with the inner cavity of the heat exchange slot 111, thereby effectively cooling the inner cavity of the housing 110.

[0089] The rotating shaft 163 is connected to the rotor core 161. The rotating shaft 163 and the rotor core 161 are interference fit. The rotation of the rotor core 161 drives the rotating shaft 163 to rotate. The two ends of the rotating shaft 163 respectively penetrate the front end cover 120 and the inner end cover 130, and are arranged on the outside of the front end cover 120 and the inner end cover 130. The rotating shaft 163 is respectively connected to the front end cover 120 and the inner end cover 130 through bearings.

[0090] The mounting plate 164 is detachably mounted on the end of the rotating shaft 163. The mounting plate 164 is arranged on the outer side of the inner end cover 130 and in the inner cavity of the rear end cover 140. The mounting plate 164 rotates with the rotating shaft 163. A first fan blade 1621 is integrally formed on the side of the mounting plate 164 away from the rotating shaft 163. The first fan blade 1621 is driven to rotate by the mounting plate 164. The rotation of the first fan blade 1621 drives the air in the inner cavity of the rear end cover 140 to be discharged, forming a low pressure in the inner cavity of the rear end cover 140. External air enters the inner cavity of the rear end cover 140 through the ventilation groove 112, dissipates heat to the bottom space of the inner cavity of the outer shell 110, and further reduces the temperature of the inner cavity of the outer shell 110.

[0091] Example 3: Please refer to Figure 1-Figure 6 The outer circumferential wall of the housing 110 is provided with exhaust ports 1111 on both the front and rear sides. The exhaust ports 1111 are connected to the inner cavity of the heat exchange tank 111. The steam formed after the liquid evaporates is discharged through the exhaust ports 1111.

[0092] A mounting boss 113 is integrally formed on the top of the circumferential outer wall of the housing 110, and the mounting boss 113 is connected to the inner cavity of the heat exchange groove 111;

[0093] A sealing block 114 is detachably mounted on the inner top of the mounting boss 113, and a sealing treatment is performed between the sealing block 114 and the mounting boss 113;

[0094] A connection port 1141 is provided on the top of the sealing block 114. The connection port 1141 penetrates the sealing block 114 and is connected to the inner cavity of the heat exchange tank 111. The connection port 1141 is connected to the end of the branch pipe 320 away from the main pipe 310. The connection port 1141 and the branch pipe 320 are sealed. The branch pipe 320 is connected to the inner cavity of the heat exchange tank 111 through the connection port 1141.

[0095] A refrigerator 115 is embedded at the bottom of the circumferential outer wall of the housing 110. The refrigerator 115 is a thermoelectric cooling sheet with a certain curvature. The curvature of the thermoelectric cooling sheet is the same as the curvature of the circumferential outer wall of the housing 110. The cold end of the refrigerator 115 is arranged toward the outside, and the hot end is arranged toward the inside of the ventilation slot 112.

[0096] The outer arc surface bottom of the arc support plate 220 is integrally formed with a drain interface 223, which is connected to the inner cavity of the liquid collecting tank 221. The drain interface 223 is connected to the end of the main pipeline 310 away from the branch pipeline 320. The inner cavity of the liquid collecting tank 221 is filled with a low-boiling-point liquid. Under the action of external force, the liquid enters the inner cavity of the main pipeline 310 through the drain interface 223 and enters the inner cavity of the liquid collecting tank 221 through the main pipeline 310 and the branch pipeline 320 in turn to be heated and vaporized. The housing 110 is cooled by the heat absorption performance of evaporation, thereby achieving the purpose of cooling the inner cavity of the housing 110.

[0097] An air inlet interface 222 is integrally formed at the top of the front and rear sides of the inner arc surface of the arc-shaped support plate 220. The air inlet interface 222 is connected to the inner cavity of the liquid collecting tank 221. The air inlet interface 222 is plugged into the inner side of the exhaust interface 1111 and is connected to the inner cavity of the heat exchange tank 111. The low-boiling point liquid enters the inner cavity of the liquid collecting tank 221 through the main pipeline 310 and the branch pipeline 320. The low-boiling point liquid evaporates and vaporizes after being heated, taking away the heat of the shell 110, thereby cooling the inner cavity of the shell 110. The vaporized steam enters the inner cavity of the liquid collecting tank 221 through the air inlet interface 222.

[0098] The arc support plate 220 is detachably mounted on the bottom of the circumferential outer wall of the housing 110 and contacts the refrigerator 115. The arc support plate 220 is cooled by the cold end of the refrigerator 115, so as to achieve the purpose of cooling the inner cavity of the liquid collecting tank 221. The steam enters the inner cavity of the liquid collecting tank 221 through the air inlet interface 222 to be condensed and liquefied into liquid again. The liquefied liquid flows back to the inner cavity of the heat exchange tank 111 through the pipeline 300 to cool the housing 110. This cycle can effectively achieve the purpose of heat dissipation of the electric actuator and ensure the service life of the electric actuator.

[0099] The hot end of the refrigerator 115 generates heat, which enters the inner cavity of the ventilation slot 112. The inner cavity of the ventilation slot 112 is evacuated by the rotation of the second fan blade 1641, and the external air enters the inner cavity of the ventilation slot 112. The heat generated by the hot end of the refrigerator 115 when it is working is taken away by the flow of air, thereby ensuring the normal operation of the refrigerator 115.

[0100] Example 4: Please refer to Figure 1-Figure 11 In order to facilitate the pumping out of the liquid and the recovery of the steam, the device is also provided with a driving assembly 400, which includes a worm 410, a transmission mechanism 420 and a working piece 430;

[0101] The worm 410 is installed in the inner cavity of the inner end cover 130 and connected to the rotating shaft 163 through a spline or a flat key. The rotation of the rotating shaft 163 drives the worm 410 to rotate.

[0102] One end of the transmission mechanism 420 is arranged on the inner side of the inner end cover 130, and the other end passes through the inner end cover 130 and the rear end cover 140 and is arranged on the outer side of the rear end cover 140. The transmission mechanism 420 includes a driving gear 421, a transmission rod 422, a transmission gear 423 and a driven gear 424.

[0103] The driving gear 421 is suspended in the inner cavity of the inner end cover 130 and meshes with the worm 410, and the driving gear 421 is driven to rotate by the worm 410;

[0104] One end of the transmission rod 422 is connected to the driving gear 421 through a spline or a flat key, and the other end of the transmission rod 422 vertically penetrates the inner end cover 130 and the rear end cover 140 downward and is arranged at the lower end of the outer side of the rear end cover 140, and drives the transmission rod 422 to rotate through the driving gear 421;

[0105] The transmission gear 423 is installed on the end of the transmission rod 422 away from the driving gear 421 through a spline or a flat key, and the transmission gear 423 is driven to rotate through the transmission rod 422;

[0106] The driven gear 424 is suspended at the outer bottom of the rear end cover 140 , and the driven gear 424 is meshed with the transmission gear 423 , and the transmission gear 423 drives the driven gear 424 to rotate;

[0107] One end of the working piece 430 is connected to the transmission gear 423 and the driven gear 424 respectively, and the other end of the working piece 430 is arranged in the inner cavity of the liquid collecting tank 221 to pump out the liquid in the inner cavity of the liquid collecting tank 221 and extract the steam in the inner cavity of the heat exchange tank 111 to the inner cavity of the liquid collecting tank 221 for liquefaction. The working piece 430 includes a crank 431, a driving rod sleeve 432 and a driving rod 433;

[0108] There are two cranks 431 , which are symmetrically arranged. The top and the bottom of the crank 431 are respectively integrally formed with a first connecting shaft 4311 and a second connecting shaft 4312 ;

[0109] The first connecting shaft 4311 is connected to the transmission rod 422 and the driven gear 424 respectively through a spline or a flat key connection, and one of the first connecting shafts 4311 is driven to make a circular motion through the transmission rod 422, and the other first connecting shaft 4311 is driven to make a circular motion through the driven gear 424;

[0110] The second connecting shaft 4312 is connected to the mounting shaft 230 via a bearing, and supports the crank 431 via the mounting shaft 230, thereby supporting the driven gear 424;

[0111] A first connecting piece 4313 and a second connecting piece 4314 are movably mounted at the bending part of the crank 431 through a bearing, and the first connecting piece 4313 and the second connecting piece 4314 are driven by the crank 431 to swing.

[0112] One end of the driving rod sleeve 432 passes through the arc support plate 220 and is inserted into the inner cavity of the liquid collecting tank 221. A movable seal is formed between the driving rod sleeve 432 and the arc support plate 220. The driving rod sleeve 432 can perform linear motion on the arc support plate 220. The other end of the driving rod sleeve 432 is arranged outside the arc support plate 220 and adjacent to the crank 431.

[0113] The end of the circumferential outer wall of the driving rod sleeve 432 is integrally formed with a first connecting block 4321, and the first connecting block 4321 is movably connected to an end of the second connecting piece 4314 away from the crank 431 through an axle pin;

[0114] A first piston 4322 is detachably mounted on one end of the driving rod sleeve 432 away from the first connecting block 4321. The first piston 4322 is disposed in the inner cavity of the liquid collecting tank 221. The first piston 4322 and the inner cavity side wall of the liquid collecting tank 221 are movably sealed. The first piston 4322 can perform translational motion in the inner cavity of the liquid collecting tank 221 under the drive of the driving rod sleeve 432.

[0115] One end of the driving rod 433 is inserted into the inner cavity of the driving rod sleeve 432 and penetrates the driving rod sleeve 432 and is inserted into the inner cavity of the liquid collecting tank 221 away from the end of the first piston 4322, and the other end of the driving rod 433 is arranged outside the driving rod sleeve 432;

[0116] A second connection block 4331 is integrally formed at one end of the circumferential outer wall of the driving rod 433, and the second connection block 4331 is movably connected to an end of the first connection piece 4313 away from the crank 431 through a shaft pin;

[0117] A second piston 4332 is detachably mounted on one end of the driving rod 433 away from the second connecting block 4331. The second piston 4332 is arranged in the inner cavity of the liquid collecting tank 221. The second piston 4332 and the inner cavity side wall of the liquid collecting tank 221 are movably sealed. The second piston 4332 can perform translational motion in the inner cavity of the liquid collecting tank 221 under the drive of the driving rod 433. The second piston 4332 is symmetrically arranged with the first piston 4322. The inner cavity of the liquid collecting tank 221 is divided into three parts by the first piston 4322 and the second piston 4332. From left to right, they are the first space, the second space, and the third space, which move synchronously toward or in the opposite direction driven by the driving rod sleeve 432 and the driving rod 433. When the first piston 4322 and the second piston 4332 move toward each other, the volume of the second space decreases, and the pressure in the second space increases, forming a high-pressure area to squeeze the liquid in the first space into the pipe 300 and enter the inner cavity of the heat exchange tank 111 through the pipe 300 for heat exchange and evaporation. As the volume of the second space decreases, the first and third spaces increase accordingly, and the pressure in the first and third spaces increases accordingly. The pressure is reduced, forming a low-pressure area, and the steam in the inner cavity of the heat exchange groove 111 enters the inner cavity of the first space and the third space through the air inlet interface 222 to condense. When the first piston 4322 and the second piston 4332 move toward each other to the limit, the first piston 4322 and the second piston 4332 move in the opposite direction, respectively squeezing the first space and the third space, and the volume of the first space and the third space is reduced, and the pressure in the first and third spaces is increased, forming a high-pressure area to squeeze the liquid in the first and third spaces into the pipeline 300 and enter the heat exchange through the pipeline 300. The inner cavity of the groove 111 performs heat exchange evaporation. As the first and third spaces are reduced, the second space increases accordingly, and the pressure in the second space decreases to form a low-pressure area. The steam in the inner cavity of the heat exchange groove 111 enters the inner cavity of the second space through the air inlet interface 222 to condense. Through the two groups of pistons, the liquid can be quickly pumped into the inner cavity of the heat exchange groove 111 with a small stroke to cool the outer shell 110. At the same time, the two groups of pistons can pump out liquid and draw in gas regardless of whether they are moving toward each other or in opposite directions. There is no pause in the process, which improves the heat dissipation efficiency.

[0118] Embodiment 5: In order to ensure the stability of liquid pumping out and gas drawing in, the present device may further be provided with two sets of telescopic devices, including but not limited to air cylinders, hydraulic cylinders and electric push cylinders, the two sets of telescopic devices are respectively arranged at both ends of the arc-shaped support plate 220, and the two pistons are respectively driven to move toward or oppositely through the two sets of telescopic devices. Even if one of the telescopic devices is damaged and fails, the liquid can still be pumped out and the gas can still be drawn in, and the phenomenon of being unable to work due to damage of some components will not occur, thereby ensuring the stability of the work.

[0119] Embodiment 6: The control system includes a collection module, a storage module, a timer, a processing module and a control module;

[0120] The acquisition module is used to acquire liquid level data and temperature data. The storage module stores comparison data to be compared with the liquid level data and the temperature data. The timer is used to acquire time data. The processing module is electrically connected to the acquisition module, the storage module and the timer, respectively, and is used to compare the acquired data with the comparison data and to perform data analysis in accordance with the time data and output the comparison data. The control module is electrically connected to the processing module, and is used to receive the comparison data output by the processing module and output different control signals according to the comparison data.

[0121] The acquisition module is a liquid level sensor and a temperature sensor, both of which are installed in the inner cavity of the liquid collecting tank 221 to respectively collect the liquid level height and liquid temperature in the inner cavity of the liquid collecting tank 221;

[0122] The control module is embedded with a communication module, which can perform remote data transmission and alarm;

[0123] The control system includes the following specific operation steps:

[0124] The liquid level data is set to L0, the temperature data is set to T0, and the time data is set to H0 through the storage module. The liquid level data collected through the acquisition module is set to L1, the temperature data is set to T1, and the time recorded by the timer is set to H1.

[0125] When H1<H0<1.2H1 and L1<L0<1.754L1, it means that the amount of liquid extracted is consistent with the amount of steam reflux, and the heat dissipation and cooling of the inner cavity of the housing 110 can be balanced;

[0126] When H1<H0<1.2H1 and 1.754L1<L0<2.351L1, it means that the amount of liquid discharged is greater than the amount of steam reflux, which means that the liquid is not completely evaporated by heat, and thus the electric actuator body does not generate high temperature and does not perform any operation;

[0127] When H1<H0<1.2H1 and 2.351L1<L0, at this time, it is possible that the amount of liquid discharged is greater than the amount of steam reflux, indicating that the liquid is not completely heated and evaporated, thereby indicating that the electric actuator body does not generate high temperature. It is also possible that there is a blockage at the air inlet interface 222. At this time, the control module sends information to the staff. After receiving the information, the staff conducts temperature detection on the electric actuator on site. If the electric actuator does not generate high temperature, no treatment is performed at this time. If the electric actuator is high temperature, it is shut down for maintenance to avoid the return air failure causing the inability to effectively cool down and affect the use of the electric actuator;

[0128] When H1<H0<1.2H1 and T1<T0<1.739T1, it means that the temperature of the inner cavity of the liquid collecting tank 221 changes within a certain range within the specified time. This is a normal state and no operation is performed;

[0129] When H1<H0<1.2H1 and 1.739T1<T0<2.531T1, it means that within the specified time, the temperature of the inner cavity of the sump 221 is in a relatively high state, which means that a large amount of steam is generated when the shell 110 is cooled down, and a large amount of steam flows back into the inner cavity of the sump 221, which means that a large amount of high temperature is generated when the electric actuator is working, but the temperature is still in a normal state. The control module sends information to the communication device of the staff every half an hour. If the data does not change, no processing is performed. When 2.531T1<T0<2.855T1, the staff needs to test the electric actuator on site;

[0130] When H1<H0<1.2H1 and 2.531T1<T0<2.855T1, it means that within the specified time, the temperature of the inner cavity of the liquid collecting tank 221 is in an extremely high state. The control module sends information to the communication equipment of the staff, and the staff detects the electric actuator on site. If no problem is found, the work continues. The control module sends information to the communication module of the staff every 7-10 minutes. If the data does not change, no processing is done. When 2.855T1<T0<3.024T1, the staff immediately rushes to the site to shut down the electric actuator for inspection and repair.

[0131] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat dissipation device for an electric actuator body, characterized in that: It comprises an electric actuator (100), a base (200) and a pipeline (300); The electric actuator (100) comprises a housing (110), a side wall of the housing (110) being provided with a heat exchange groove (111), the heat exchange groove (111) occupying three quarters of the circumference of the housing (110); A ventilation slot (112) is provided through the end of the shell (110), the ventilation slot (112) vertically penetrates the other end of the shell (110), the ventilation slot (112) occupies three fifths of the remaining one fourth of the entire circumference of the shell (110), and the ventilation slot (112) is adjacent to the heat exchange slot (111) but not connected to the heat exchange slot (111); A refrigerator (115) is arranged on the circumferential outer wall of the housing (110) and is communicated with the interior of the ventilation slot (112); the refrigerator (115) is a thermoelectric cooling sheet having a certain curvature, the curvature of the thermoelectric cooling sheet being the same as the curvature of the circumferential outer wall of the housing (110); the cold end of the refrigerator (115) is arranged toward the outside, and the hot end is arranged toward the inside of the ventilation slot (112); The base (200) comprises a bottom plate (210) and an arc-shaped support plate (220), wherein the arc-shaped support plate (220) is arranged at the upper end of the bottom plate (210) and is detachably connected to the housing (110), a liquid collecting groove (221) is provided on the side wall of the arc-shaped support plate (220), and the interior of the liquid collecting groove (221) is filled with a low-boiling-point liquid, and the arc-shaped support plate (220) is detachably mounted on the bottom of the circumferential outer wall of the housing (110) and is in contact with the refrigerator (115); The pipe (300) is respectively connected to the outer shell (110) and the arc-shaped support plate (220) and is respectively connected to the inner cavities of the heat exchange tank (111) and the liquid collecting tank (221); the low-boiling-point liquid in the liquid collecting tank (221) is guided to the inner cavity of the heat exchange tank (111) through the pipe (300) to exchange heat with the outer shell (110) for evaporation and cooling; A control system is provided on the circumferential outer wall of the housing (110).

2. The heat dissipation device for an electric actuator body according to claim 1, characterized in that: The electric actuator (100) further comprises: A front end cover (120), the front end cover (120) being detachably mounted on an end portion of the housing (110); An inner end cover (130), the inner end cover (130) being detachably mounted on an end of the outer shell (110) away from the front end cover (120); a rear end cover (140), the rear end cover (140) being detachably mounted on an end of the housing (110) away from the front end cover (120), the rear end cover (140) being arranged on the outside of the inner end cover (130); a stator core (150), the stator core (150) being arranged in the inner cavity of the housing (110); A rotor (160), the rotor (160) being arranged in the inner cavity of the housing (110) and on the inner side of the stator core (150), the rotor (160) being movably connected to the front end cover (120) and the inner end cover (130) respectively.

3. The heat dissipation device for an electric actuator body according to claim 2, characterized in that: The rotor (160) comprises: Rotor core (161); A gasket (162), the gasket (162) being arranged at both ends of the rotor core (161) and rotating along with the rotor core (161), a first blade (1621) being arranged at an end of the gasket (162), the first blade (1621) rotating along with the gasket (162) to drive the flow of gas inside the housing (110); A rotating shaft (163), the rotating shaft (163) being connected to the rotor core (161) and the gasket (162) respectively and rotating along with the rotor core (161), two ends of the rotating shaft (163) passing through the gasket (162) and being movably connected to the front end cover (120) and the inner end cover (130) respectively and passing through the side walls of the front end cover (120) and the inner end cover (130) respectively; A mounting plate (164) is arranged at the end of the rotating shaft (163) and rotates with the rotating shaft (163); the mounting plate (164) is arranged in the inner cavity of the rear end cover (140); and a second fan blade (1641) is arranged on a side wall of the mounting plate (164).

4. The heat dissipation device for an electric actuator body according to claim 1, characterized in that: A mounting boss (113) intersecting the heat exchange groove (111) is provided on the circumferential outer wall of the housing (110); a sealing block (114) is detachably mounted on the inner top of the mounting boss (113); a connecting port (1141) connected to the pipeline (300) is provided through the top of the sealing block (114); the connecting port (1141) is intersecting the heat exchange groove (111).

5. The heat dissipation device for an electric actuator body according to claim 1, characterized in that: The base (200) further comprises a mounting shaft (230); The installation shaft (230) is vertically arranged at the top edge of the bottom plate (210), and a connection hole is provided at the end of the installation shaft (230).

6. The heat dissipation device for an electric actuator body according to claim 1, characterized in that: The top of the inner arc surface of the arc-shaped support plate (220) is provided with an air inlet interface (222) which is in communication with the inner cavity of the liquid collecting tank (221); A liquid discharge interface (223) which is in communication with the inner cavity of the liquid collecting tank (221) is provided at the bottom of the outer arc surface of the arc-shaped support plate (220), and the liquid discharge interface (223) is connected to the pipeline (300).

7. The heat dissipation device for an electric actuator body according to claim 1, characterized in that: The device further comprises a driving assembly (400), wherein the driving assembly (400) is connected to the electric actuator (100) and the base (200) respectively, and the driving assembly (400) comprises: A worm (410), wherein the worm (410) is mounted in the inner cavity of the electric actuator (100) and the worm (410) is driven to rotate by the electric actuator (100); a transmission mechanism (420), the transmission mechanism (420) being connected to the worm (410) and being used to transmit power generated by the worm (410); A working piece (430) is connected to the transmission mechanism (420), and power is transmitted to the working piece (430) through the transmission mechanism (420). The working piece (430) generates pressure to reduce the boiling point of the liquid and pumps it into the inner cavity of the pipeline (300).

8. The heat dissipation device for an electric actuator body according to claim 7, characterized in that: The transmission mechanism (420) comprises: A driving gear (421), the driving gear (421) meshing with the worm (410); A transmission rod (422), the transmission rod (422) being connected to the driving gear (421); A transmission gear (423), the transmission gear (423) being connected to an end of the transmission rod (422) away from the driving gear (421); A driven gear (424), wherein the driven gear (424) is meshed with the transmission gear (423).

9. The heat dissipation device for an electric actuator body according to claim 7, characterized in that: The working piece (430) comprises: A crank (431), wherein a first connecting shaft (4311) is arranged at the top of the crank (431), a second connecting shaft (4312) is arranged at the bottom of the crank (431), the second connecting shaft (4312) and the first connecting shaft (4311) are arranged coaxially, and a first connecting plate (4313) and a second connecting plate (4314) are movably connected inside the crank (431); A driving rod sleeve (432), wherein a first connecting block (4321) is provided at an end of a circumferential outer side wall of the driving rod sleeve (432), the first connecting block (4321) is movably connected to an end of the second connecting piece (4314) away from the crank (431), and a first piston (4322) is provided at an end of the driving rod sleeve (432) away from the first connecting block (4321); A driving rod (433), the driving rod (433) being movably connected to the driving rod sleeve (432), a second connecting block (4331) being provided at the end of the circumferential outer side wall of the driving rod (433), the second connecting block (4331) being movably connected to an end of the first connecting piece (4313) away from the crank (431), and a second piston (4332) being provided at an end of the driving rod (433) away from the second connecting block (4331).

10. The heat dissipation device for an electric actuator body according to claim 1, characterized in that: The control system comprises: A collection module, wherein the collection module is used to collect liquid level data and temperature data; A storage module, wherein the storage module stores comparison data to be compared with the liquid level data and the temperature data; A timer, wherein the timer is used to collect execution time data; A processing module, the processing module is electrically connected to the acquisition module, the storage module and the timer, and is used to compare the acquired data with the comparison data, perform data analysis based on the time data, and output the comparison data; A control module is electrically connected to the processing module and is used to receive the comparison data output by the processing module and output different control signals according to the comparison data.

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