Alternating heat conduction device for micro motor

Abstract

The application discloses an alternating heat conduction device of a micro motor, which comprises a motor, a plurality of heat conduction devices and a transmission device, the transmission device is fixedly arranged at the rear end of the motor, the plurality of heat conduction devices are arranged on the outer surface of the motor, the rear end of the motor is further provided with a heat collecting device and a plurality of limiting pieces, the heat collecting device is externally provided with a fixing piece, a fan is installed in the fixing piece and is used for air cooling, and the fixing piece is connected to the top of the corresponding limiting piece; wherein the plurality of heat conduction devices are divided into two groups and are used for alternating heat conduction in cooperation with the transmission device, each heat conduction device is installed on the corresponding limiting piece and is guided by the limiting piece; the alternating movement of the two groups of heat conduction devices is controlled by rotating the rotating part by 45 degrees, and the heat dissipation efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of motor heat dissipation technology, and specifically to an alternating heat conduction device for a micro motor. Background Technology

[0002] A pipe jacking machine is a tunnel excavation device that uses the pipe jacking method. With the acceleration of urbanization in my country, pipe jacking machines and their supporting technologies have been widely used in many fields such as gas, water supply and drainage, and communications. Among them, with the innovation of pipe jacking machines, miniaturization has gradually become the mainstream product. For miniaturized pipe jacking machines, the most important issue is the heat generation problem of the high-torque motor after miniaturization. Therefore, there is an urgent need for an alternating heat conduction device for miniaturized motors to solve the heat generation problem of high-torque motors after miniaturization. Summary of the Invention

[0003] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide an alternating heat conduction device for a micro motor, which improves the overall heat conduction efficiency of the motor by cooperating with multiple heat conduction devices, transmission devices and the motor, so as to solve the problem of heat generation in miniaturized high-torque motors.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] An alternating heat conduction device for a micro motor includes a motor, multiple heat conduction devices, and a transmission device. The transmission device is fixedly installed at the rear end of the motor, and the multiple heat conduction devices are all installed on the outer surface of the motor. The rear end of the motor is also provided with a heat collection device and multiple sets of limiting members. A fixing member is provided on the outside of the heat collection device, and a fan is installed in the fixing member for wind-powered heat dissipation. The fixing member is connected to the top of the corresponding limiting member.

[0006] The multiple heat-conducting devices are divided into two groups, which work in conjunction with the transmission device to conduct heat alternately. Each heat-conducting device is installed on a corresponding limiting member, which provides guidance.

[0007] As a further aspect of the present invention, the number of heat-conducting devices is set to eight, and the eight heat-conducting devices are evenly distributed around the outer surface of the motor.

[0008] As a further aspect of the present invention: the heat-conducting device includes a heat-conducting sheet, a heat-conducting rod connected to the middle of the top surface of the heat-conducting sheet, a limiting rod connected to the rear end of the heat-conducting rod, a contact rod connected to the rear end of the limiting rod, and a limiting plate provided at the front end of the heat-conducting sheet, the limiting plate slidingly contacting the front end surface of the motor.

[0009] As a further aspect of the present invention: the transmission device includes a transmission body and a rotating part. The transmission body is fixedly installed at the rear end of the motor. The transmission body is connected to the rotating part, which is in the shape of a four-pointed star and has four protrusions and four grooves, which are respectively opposite to the corresponding heat conduction devices.

[0010] As a further aspect of the present invention: the limiting member includes a limiting member rod, the end of the limiting member rod is connected to a limiting member fixing part, and a heat-conducting rod limiting part is provided in the middle of the outer side of the limiting member fixing part.

[0011] As a further aspect of the present invention: the interior of the heat-conducting rod limiting part is a hollow structure and is connected to the limiting member fixing part. The limiting rod is sleeved in the middle of the corresponding heat-conducting rod limiting part for stable guidance.

[0012] As a further aspect of the present invention: the heat collection device is provided with eight contact rod slots near the motor end, and the eight contact rod slots are opposite to the corresponding contact rods.

[0013] The beneficial effects of this invention are:

[0014] This invention provides an alternating heat conduction device, which uses a transmission device to divide multiple heat conduction devices into two groups that alternately contact the outer surface of the motor and conduct heat to the heat collection device. A fan then provides airflow cooling to the heat collection device, thereby achieving uniform heat dissipation for both the motor and the heat conduction devices. This method significantly improves the heat dissipation efficiency of micro high-torque motors and addresses the problem of poor heat conduction efficiency due to excessively long heat conduction time. Furthermore, the overall structure of this invention is compact and can be freely disassembled, making operation simple, maintenance convenient, and resource-saving. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall invention;

[0017] Figure 2 This is a schematic diagram showing the position of the transmission device of the present invention;

[0018] Figure 3 This is a schematic diagram of the motor of the present invention;

[0019] Figure 4 This is a schematic diagram of the heat conduction device of the present invention;

[0020] Figure 5 This is a schematic diagram of the transmission device of the present invention;

[0021] Figure 6 This is a schematic diagram of the overall back end of the present invention;

[0022] Figure 7 This is a schematic diagram of the limiting component of the present invention;

[0023] Figure 8 This is a schematic diagram of the fastener of the present invention;

[0024] Figure 9 This is a schematic diagram of the heat collection device of the present invention.

[0025] In the diagram: 1. Motor; 111. Motor housing; 2. Heat-conducting device; 211. Heat-conducting sheet; 212. Heat-conducting rod; 213. Limiting rod; 214. Contact rod; 215. Limiting plate; 3. Fan; 4. Transmission device; 411. Transmission body; 412. Rotating part; 12. Limiting component; 121. Limiting component rod; 122. Limiting component fixing part; 123. Heat-conducting rod limiting part; 13. Transmission device slot; 14. Fixing component; 141. Fixing component rod; 142. Axial fan slot; 143. Fan slot connecting rod; 144. Longitudinal fan slot; 15. Heat collection device; 151. Heat collection device rod; 152. Contact rod slot; 153. Heat collection device opening; 154. Heat collection plate; 155. Central opening. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1-9 As shown, this is an alternating heat conduction device for a micro motor. The alternating heat conduction device includes a motor 1, a heat conduction device 2, and a transmission device 4; wherein the motor 1 is located inside the entire alternating heat conduction device, and as shown... Figure 3 As shown, the motor 1 includes an outer motor housing 111 and an inner motor body. The inner surface of the motor housing 111 is a copper mesh structure and generates heat. The motor housing 111 conducts heat to the rear end through contact with the heat-conducting device 2, and the rear end of the motor housing 111 is made of heat-resistant material. A transmission device groove 13 is provided in the middle of the rear end of the motor housing 111 for installing the transmission device 4, such as... Figure 1 As shown, a plurality of heat-conducting devices 2 are provided on the outer surface of the motor housing 111. The front ends of the plurality of heat-conducting devices 2 are in full contact with the outer surface of the motor housing 111, and as shown... Figure 2 As shown, the transmission device 4 is fixed at the middle of the rear end of the motor 1 and can perform extrusion transmission with multiple heat-conducting devices 2.

[0028] Furthermore, the heat-conducting device 2 is located on the front end face of the motor housing 111. Its material is a heat-conducting magnetic material. The heat-conducting device 2 made of magnetic material can adsorb the outer surface of the motor housing 111. There are eight heat-conducting devices 2. The eight heat-conducting devices 2 are evenly distributed around the outer surface of the motor 1. They can guide the heat generated on the outer surface of the motor 1 to the rear end through the heat-conducting devices 2.

[0029] Further as Figure 4As shown, the aforementioned heat-conducting device 2 includes a heat-conducting sheet 211, a heat-conducting rod 212, a limiting rod 213, a contact rod 214, and a limiting plate 215. The heat-conducting sheet 211 is located at the front end of the heat-conducting device 2. Multiple heat dissipation grooves are formed on the heat-conducting sheet 211, and the heat-conducting sheet 211 is made of magnetic material. Its circumferential dimension occupies one-eighth of the circumference of the motor housing 111. A heat-conducting rod 212 is connected to the center of the top surface of the heat-conducting sheet 211. Eight heat-conducting sheets 211 can make complete contact with the outer surface of the motor housing 111, and heat is conducted to the heat-conducting rod 212 through the multiple heat-conducting sheets 211. Furthermore, the heat-conducting rod 212 is located at the upper end of the heat-conducting sheet 211, and a limiting rod 213 is connected to the rear end of the heat-conducting rod 212, enabling heat to be conducted to the limiting rod 213 through the heat-conducting rod 212. Simultaneously, the limiting plate 215... Positioning rod 213 is located below the rear end of heat-conducting rod 212, and the positioning rod 213 is vertically set. The diameters of heat-conducting rod 212 and positioning rod 213 are set according to the actual equipment. The purpose is to facilitate the transmission device 4 to meet the stable control of multiple front-end heat-conducting plates 211 and prevent jamming and deflection. The rear end of the positioning rod 213 is connected to a contact rod 214, which can conduct heat to the contact rod 214 through the positioning rod 213. The contact rod 214 is located at the rear end of the positioning rod 213. Through the transmission device 4 and the transmission control of multiple positioning rods 213, the rear ends of the eight contact rods 214 are divided into two groups of four, which are intermittently distributed. The two groups of contact rods 214 can intermittently contact the corresponding contact rod groove 152 of the heat collection device 15 for heat conduction.

[0030] Further such as Figure 4 As shown, a limiting plate 215 is provided at the front end of the heat-conducting sheet 211. The limiting plate 215 slides in contact with the front surface of the motor 1 to guide it. The limiting plate 215 is slidably installed in the groove opened at the front end of the motor housing 111. When the transmission device 4 drives the multiple heat-conducting devices 2 to move in all directions, it can ensure that the heat-conducting devices 2 do not deflect.

[0031] like Figure 5 As shown, the aforementioned transmission device 4 includes a transmission body 411 and a rotating part 412, which is composed of... Figure 1 and Figure 2 It is known that the transmission body 411 is fixedly installed in the transmission device slot 13. The transmission body 411 is connected to the rotating part 412. The transmission body 411 can be remotely controlled from the outside and drive the rotating part 412 to rotate. The rotating part 412 is four-pointed star shaped and has four protrusions and four grooves, such as... Figure 1As shown, the four protrusions can contact and press the four limiting rods 213 for transmission, while the grooves do not contact the other four limiting rods 213, thus avoiding contact. Therefore, the eight heat-conducting devices 2 can be divided into two groups of four, arranged at intervals. When the rotating part 412 rotates, the protrusions can control the two groups of heat-conducting devices 2 to alternately contact the outer surface of the motor 1 for heat conduction. The group in contact can dissipate heat at this time, while the group not in contact conducts heat to the motor 1.

[0032] Furthermore, by controlling the transmission body 411 to drive the rotating part 412 to rotate, the protrusion of the rotating part 412 presses against the corresponding four limit rods 213 to support and drive the corresponding four heat-conducting plates 211 to move in all directions, thereby dissipating heat. Meanwhile, the groove of the rotating part 412 does not contact the corresponding four limit rods 213. The four corresponding heat-conducting plates 211 are in contact with the surface of the motor 1 for heat conduction. The heat conduction and heat dissipation are switched by the intermittent control of the transmission body 411, thereby improving the heat dissipation efficiency.

[0033] Further such as Figure 6 As shown, a heat collection device 15 is fixedly connected to the rear end of the motor 1. A fixing member 14 is provided on the outside of the heat collection device 15. A fan 3 is installed in the fixing member 14. Five sets of fans 3 are provided. The five sets of fans 3 are located at the rear end and side of the heat collection device 15, respectively, and can provide wind power cooling for the heat collection device 15 at the rear end of the device.

[0034] Further such as Figure 6 As shown, a limiting component 12 is also provided at the rear end of the motor 1. There are eight sets of the limiting component 12. The eight sets of the limiting component 12 are distributed in a circular array around the transmission device groove 13 and are located on the outermost side. The eight sets of the limiting component 12 are made of heat-resistant material. Furthermore, the eight sets of the limiting component 12 correspond to the limiting rods 213 of the eight heat conduction devices 2. The eight limiting rods 213 are installed in the eight sets of the limiting component 12 to guide the up and down movement of the limiting rods 213 and prevent the movement from deviating.

[0035] The fixing part 14 at the rear end of motor 1 is as follows Figure 6 As shown, the fixing member 14 is connected to the top of the corresponding four limiting members 12. Its material is heat-resistant material, and multiple sets of fans 3 are installed on the side and rear end for further heat dissipation. A heat collection device 15 is provided inside the fixing member 14, which can contact the rear end of the four contact rods 214 of the two sets of heat conduction devices 2 respectively, and conduct heat into the heat collection device 15.

[0036] Further as Figure 7As shown, the aforementioned limiting member 12 includes a limiting member rod 121, a limiting member fixing part 122, and a heat-conducting rod limiting part 123. The limiting member rod 121 is fixedly connected to the rear end face of the motor 1, and eight limiting member rods 121 are evenly arranged circumferentially. The end of each limiting member rod 121 is connected to the limiting member fixing part 122. The middle of the outer side of the limiting member fixing part 122 is provided with a heat-conducting rod limiting part 123 with a hollow internal structure. The heat-conducting rod limiting part 123 is located at the upper end of the limiting member fixing part 122, penetrates the limiting member fixing part 122, contacts the limiting rod 213, and controls the eight heat-conducting devices 2 to move along the movement path of their respective limiting rods 213. The heat-conducting rod limiting part 123 guides the moving limiting rods 213.

[0037] Further such as Figure 8 As shown, the fixing member 14 includes a fixing member rod 141, an axial fan groove 142, a fan groove connecting rod 143, and a longitudinal fan groove 144. The four fixing member rods 141, which are evenly arranged in four circumferential directions, can be connected and fixed to the rear ends of the four corresponding limiting member fixing parts 122. The rear ends of the fixing member rods 141 have axial fan grooves 142. Four fans 3 can be fixed inside the four circumferentially evenly arranged axial fan grooves 142, and the fans 3 are also fixed in the longitudinal fan grooves 144 to dissipate heat from the side of the heat collection device 15. The top of the fixing member 14 is provided with a longitudinal fan groove 144, and a fan 3 is also fixed in the longitudinal fan groove 144 to dissipate heat from the bottom surface. The fan groove connecting rod 143 is located between the four axial fan grooves 142 and the longitudinal fan groove 144. The four fan groove connecting rods 143 connect and fix the four axial fan grooves 142 and the longitudinal fan groove 144.

[0038] Further, such as Figure 9 As shown, the aforementioned heat collection device 15 includes heat collection device rods 151, contact rod grooves 152, heat collection device openings 153, heat collection plates 154, and a central through-hole 155. Eight heat collection device rods 151 are provided, and each rod is fixedly connected to the rear end of the motor 1. The rear ends of the eight rods are connected to the heat collection plates 154. Multiple contact rod grooves 152 are provided at the bottom of the heat collection plates 154 near the ends of the rods 151. These eight grooves are evenly distributed circumferentially on the heat collection plates 154 and are staggered from the rods 151. Each groove corresponds to one of the eight contact rods 214, enabling them to contact and conduct heat with the rear ends of one of the two sets of heat-conducting devices 2.

[0039] Furthermore, the outer surface of the heat collection plate 154 is provided with multiple heat collection device openings 153, which can increase the circumferential heat dissipation efficiency of the heat collection plate 154 of the side fan 3 pair; wherein the heat collection plate 154 is located at the rear end of the heat collection device 15, which can guide the heat generated on the outer surface of the motor housing 111 to this location and dissipate it through the multiple fans 3; furthermore, a central through-hole 155 is provided in the middle of the heat collection plate 154, which can increase the longitudinal heat dissipation efficiency of the heat collection plate 154 of the rear fan 3 pair.

[0040] Working principle of the invention:

[0041] This invention is applicable to efficient heat dissipation of a micro high-torque motor in a specific area, with the initial state as follows: Figure 1As shown, at this time, the protrusion of the rotating part 412 will be pressed and controlled by the limiting rods 213 of four of the eight heat-conducting devices 2. The heat-conducting plates 211 of these four heat-conducting devices 2 will not contact the outer surface of the motor 1 for heat conduction, and the rear ends of the contact rods 214 of these four heat-conducting devices 2 will be offset from the contact rod grooves 152 and will not contact the grooves of the rotating part 412. Meanwhile, the heat-conducting plates 211 of the other four heat-conducting devices 2 that do not contact the grooves will contact the outer surface of the motor 1 for heat conduction, and the rear ends of the contact rods 214 of these four heat-conducting devices 2 will enter the contact rod grooves 152 for contact heat conduction. At this time, through contact with the outer surface of the motor 1, The four heat-conducting devices 2 can generate a large amount of heat on the outer surface of the motor housing 111, which is then guided through the heat-conducting rod 212, the limiting rod 213, and the contact rod 214 to the multiple heat-collecting plates 154 of the heat-collecting device 15. The heat is then dissipated by the fixed fans 3 around and at the ends of the heat-collecting device 15. After a set heat conduction time, the temperature of the four heat-conducting devices 2 in contact with the outer surface of the motor 1 rises, causing a significant decrease in their heat conduction rate. At this point, the transmission body 411 of the transmission device 4 drives the rotating part 412 to rotate 45 degrees and then stops. At this time, the heat previously in contact with the outer surface of the motor body... The limiting rods 213 of the four heat-conducting devices 2 in surface contact will move outwards due to the pressure from the protrusion of the rotating part 412. At this time, the heat-conducting plates 211 of this group of four heat-conducting devices 2 will not contact the outer surface of the motor 1 for heat conduction, and the rear ends of the contact rods 214 of these four heat-conducting devices 2 will be misaligned with the contact rod groove 152 and will not contact the groove of the rotating part 412. They will also begin to automatically dissipate heat through contact with the airflow. Meanwhile, the heat-conducting plates 211 of the other group of four heat-conducting devices 2 will contact the outer surface of the motor 1 for heat conduction, and the rear ends of the contact rods 214 of these four heat-conducting devices 2 will enter the contact rod groove 152 for contact conduction. When the heat is generated, the four heat-conducting devices 2 that are in contact with the outer surface of the motor 1 can guide the large amount of heat generated on the outer surface of the motor 1 to the multiple heat-collecting plates 154 of the heat-collecting device 15 through the heat-conducting rod 212, the limiting rod 213 and the contact rod 214. The multiple heat-collecting plates 154 are then cooled by the wind power of the fixed fans 3 around and at the end of the heat-collecting device 15. The heat conduction efficiency of the four heat-conducting devices 2 is improved again after the alternation. When the heat-conducting plates 211 of the other set of four heat-conducting devices 2 cool down, the two sets of heat-conducting devices 2 can be rotated 45 degrees by rotating part 412 to control the alternating movement of the two sets of heat-conducting devices 2. This method greatly improves the heat dissipation efficiency.

[0042] One embodiment of the present invention has been described in detail, but the description is only a preferred embodiment and should not be considered as limiting the scope of the invention. All equivalent variations and improvements made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. An alternating heat conduction device for a micro motor, comprising a motor (1), characterized in that, It also includes multiple heat-conducting devices (2) and transmission devices (4). The transmission devices (4) are fixedly installed at the rear end of the motor (1), and multiple heat-conducting devices (2) are all installed on the outer surface of the motor (1). The rear end of the motor (1) is also provided with a heat-collecting device (15) and multiple sets of limiting members (12). The heat-collecting device (15) is provided with a fixing member (14) on its outside. A fan (3) is installed in the fixing member (14) for wind-powered heat dissipation. The fixing member (14) is connected to the top of the corresponding limiting member (12). Multiple heat-conducting devices (2) are divided into two groups and work with the transmission device (4) to conduct heat alternately. Each heat-conducting device (2) is installed on a corresponding limiting member (12) and is guided by the limiting member (12). The heat conduction device (2) includes a heat conduction sheet (211), a heat conduction rod (212) is connected to the middle of the top surface of the heat conduction sheet (211), a limit rod (213) is connected to the rear end of the heat conduction rod (212), a contact rod (214) is connected to the rear end of the limit rod (213), and a limit plate (215) is provided at the front end of the heat conduction sheet (211), and the limit plate (215) slides in contact with the front end surface of the motor (1); The transmission device (4) includes a transmission body (411) and a rotating part (412). The transmission body (411) is fixedly installed on the rear end of the motor (1). The transmission body (411) is connected to the rotating part (412). The rotating part (412) is in the shape of a four-pointed star and has four protrusions and four grooves, which are respectively opposite to the corresponding heat conduction device (2). The heat collection device (15) has eight contact rod slots (152) near the motor (1), and the eight contact rod slots (152) are opposite to the corresponding contact rods (214).

2. The alternating heat conduction device for a micro motor according to claim 1, characterized in that, The number of heat-conducting devices (2) is set to eight, and the eight heat-conducting devices (2) are evenly distributed around the outer surface of the motor (1).

3. The alternating heat conduction device for a micro motor according to claim 1, characterized in that, The limiting member (12) includes a limiting member rod (121), the end of the limiting member rod (121) is connected to a limiting member fixing part (122), and a heat-conducting rod limiting part (123) is provided in the middle of the outer side of the limiting member fixing part (122).

4. The alternating heat conduction device for a micro motor according to claim 1, characterized in that, The interior of the heat-conducting rod limiting part (123) is hollow and is connected to the limiting member fixing part (122). The limiting rod (213) is sleeved in the middle of the corresponding heat-conducting rod limiting part (123) for stable guidance.

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