Motor and driver integrated transition heat dissipation base

Abstract

The utility model discloses a motor and driver integrated transition heat dissipation base, comprising a heat dissipation base body, a driver heat conduction installation surface on the upper surface of the heat dissipation base body, the driver heat conduction installation surface and the surface of a heat dissipation plate module of a driver are tightly attached and connected, and the lower surface of the heat dissipation base body is of an arc-shaped structure. Comprising a liquid cooling heat conduction part which is in close fit connection with the surface of a liquid cooling conduction section of a motor main body, a rear fixing part which is fixedly connected with a motor tail end heat dissipation cover, and a front fixing part which is fixedly connected with a motor front end shaft cover, a motor wire outlet penetrating through the rear fixing part is formed in the position, corresponding to the center area of the rear fixing part, of the driver heat conduction installation face, a closed-loop rectangular sealing groove is formed in the periphery of the driver heat conduction installation face, and a rectangular sealing ring tightly attached to the bottom of the driver shell in a waterproof mode is arranged in the rectangular sealing groove. And the motor wire outlet is located in an area enclosed by the rectangular sealing groove. According to the utility model, the motor and the driver are integrated, the cooling structure is compact, the size is small, and the weight is light.

Description

Technical Field

[0001] The utility model relates to the technical field of motor heat dissipation, in particular to an integrated transition heat dissipation base for a motor and a driver. Background Technique

[0002] With the continuous development of the motor industry, motor manufacturing enterprises are constantly pursuing small volume and high power density. In motor design, more and more materials with high electromagnetic load and thermal load are used. The losses generated during motor operation increase, resulting in too high overall temperature rise or local temperature rise of the motor. This will not only reduce the service life of the motor and affect economic and technical indicators such as the efficiency and torque of the motor, but also cause serious deformation of the motor structural components, endangering the safe operation of the motor. To solve the motor heat dissipation problem, existing motors generally also use internal cooling fans to achieve motor heat dissipation and temperature reduction. At the same time, the servo motor driver supporting the servo motor is similar to an inverter. It acts on the servo motor and belongs to a part of the servo system. It is mainly applied to high-precision positioning systems and generally controls the servo motor in three ways: position, speed, and torque to achieve high-precision transmission system positioning. The driver will also dissipate a large amount of heat during operation. Generally, internal heat dissipation or external heat dissipation devices are used to guide the heat inside the servo motor driver to the outside to prevent component damage.

[0003] Currently, for common traditional heat dissipation methods, the motor and the driver respectively use air cooling independently. Although they can dissipate heat and cool down the motor and the driver respectively, there are also some disadvantages: 1. The equipment volume is large, occupying a large space; 2. The air-cooled driver has no waterproof and dustproof functions and cannot be used under working conditions with a lot of dust. The above defects make the existing products unable to meet the application occasions with small space and high waterproof and dustproof requirements.

[0004] Existing drivers generally set a cooling fan inside the driver housing to guide heat to the outside for heat dissipation and introduce new airflows. Heat dissipation is achieved through the exchange and circulation of internal and external airflows. However, when dissipating heat through the cooling fan, during the operation of the cooling fan, due to air flow, dust will adhere to the air inlet of the servo motor driver or enter the internal space. Secondly, when the cooling fan stops working, dust will also adhere to the air inlet, air outlet or internal space of the servo motor driver due to external forces. This will not only block the air inlet and reduce the air flow volume, affecting the heat dissipation effect, but also cause the heat generation of the servo motor driver to increase and even cause damage. Summary of the Utility Model

[0005] In order to solve the defects existing in the above technology, the utility model provides an integrated transition heat dissipation base for a motor and a driver.

[0006] The technical solution adopted by the utility model to achieve the above technical effects is:

[0007] An integrated transitional heat dissipation base for a motor and a driver, comprising an integrally formed heat dissipation base body. The upper surface of the heat dissipation base body is a milled driver heat conduction mounting surface, which is tightly attached and connected to the surface of the heat dissipation plate module of the driver. The lower surface of the heat dissipation base body is an arc-shaped structure, including a liquid-cooled heat conduction part that is tightly attached and connected to the surface of the liquid-cooled conduction section of the motor main body, a rear fixing part that is fixedly connected to the heat dissipation cover at the tail end of the motor, and a front fixing part that is fixedly connected to the front shaft cover of the motor. The motor wire outlet that penetrates the rear fixing part is provided in the central area of the driver heat conduction mounting surface corresponding to the rear fixing part. A closed-loop rectangular sealing groove is provided along the periphery of the driver heat conduction mounting surface. A rectangular sealing ring that is waterproof and closely attached to the bottom of the driver housing is provided in the rectangular sealing groove. The motor wire outlet is located inside the area enclosed by the rectangular sealing groove.

[0008] Preferably, in the above-mentioned integrated transitional heat dissipation base for a motor and a driver, on both sides of the front fixing part, fixing strengthening arms extend forward, and fixing feet that are fixed to the front shaft cover of the motor are formed at the ends of the fixing strengthening arms.

[0009] Preferably, in the above-mentioned integrated transitional heat dissipation base for a motor and a driver, the liquid-cooled heat conduction part is formed with a first arc surface adapted to the surface of the liquid-cooled conduction section of the motor main body, the rear fixing part is formed with a second arc surface adapted to the circumferential side surface of the heat dissipation cover at the tail end of the motor, and the lower surface of the fixing foot is formed with a third arc surface adapted to the circumferential side surface of the front shaft cover of the motor.

[0010] Preferably, in the above-mentioned integrated transitional heat dissipation base for a motor and a driver, a rear inclined surface step for transitional connection is formed between the first arc surface and the second arc surface, and a front inclined surface step for transitional connection is formed between the first arc surface and the third arc surface.

[0011] Preferably, in the above-mentioned integrated transitional heat dissipation base for a motor and a driver, a through first driver mounting hole is provided inside the area enclosed by the rectangular sealing groove on the driver heat conduction mounting surface. One end orifice of the first driver mounting hole on the driver heat conduction mounting surface has a counterbore step.

[0012] Preferably, in the above-mentioned integrated transitional heat dissipation base for a motor and a driver, a row of second driver mounting holes for fixing the driver housing are respectively provided along the front and rear sides of the driver heat conduction mounting surface. The second driver mounting holes are located on the inner edge of the area enclosed by the rectangular sealing groove.

[0013] Preferably, in the above integrated transition heat dissipation base of the motor and the driver, the heat dissipation base body is fixed to the motor through a screw mounting structure. The screw mounting structure includes rear motor fixed mounting holes that are distributed at four corners at the position corresponding to the rear fixing part on the heat conduction mounting surface of the driver, and front motor fixed mounting holes provided on the fixing feet. Among them, the rear motor fixed mounting holes are through holes.

[0014] Preferably, in the above integrated transition heat dissipation base of the motor and the driver, the heat dissipation base body is fixed to the motor by direct welding.

[0015] Preferably, in the above integrated transition heat dissipation base of the motor and the driver, the width of the rectangular sealing groove is 2 mm and the depth is 1.5 mm.

[0016] The beneficial effects of the present utility model are as follows: The heat dissipation base of the present utility model can connect the motor and the driver together and provide heat dissipation function for the driver through the liquid cooling heat dissipation of the motor itself. There is no need to separately arrange a separate active heat dissipation device in the driver, which can reduce the volume of the entire driver, simplify the internal structure of the driver, make the cooling structure compact, facilitate installation, and further reduce the installation space of the motor and driver equipment. At the same time, it can also provide waterproof and dustproof functions for the driver. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the present utility model;

[0018] Figure 2 is a three-dimensional view of the lower surface side perspective of the present utility model;

[0019] Figure 3 is a front view of the present utility model at the front end;

[0020] Figure 4 is a front view of the present utility model at the rear end;

[0021] Figure 5 is an installation state diagram of the heat dissipation base of the present utility model and the driver;

[0022] Figure 6 is a state diagram of the heat dissipation base of the present utility model applied to the integrated installation of the driver and the motor. Detailed Embodiments

[0023] To further understand the present utility model, the present utility model will be further described below with reference to the accompanying drawings of the specification and specific embodiments:

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first", "second", "third", "fourth" are only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be a direct connection, or a connection through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Please refer to Figure 1 and Figure 2 , as shown in the figure, an embodiment of the present utility model provides an integrated transition heat dissipation base for a motor and a driver. The heat dissipation base includes an integrally formed heat dissipation base body 1, which is used to connect the motor 200 and the driver 100 to make them an integral body, and the specific state is as Figure 6 shown. Among them, the inside of the motor 200 adopts a liquid cooling method. The heat dissipation base body 1 is installed and attached to the surface of the motor 200, and the driver 100 is installed on the heat dissipation base body 1. The heat generated by the driver 100 generates heat transfer through direct contact between the two, and directly transfers the generated heat to the heat dissipation base body 1. Then, through the direct contact between the heat dissipation base body 1 and the motor 200, the heat transferred to the heat dissipation base body 1 is transferred to the motor 200, and then the heat transferred by the driver is dissipated through the liquid cooling structure inside the motor 200. That is, the driver 100 builds a heat dissipation bridge by means of the heat dissipation base body 1, and uses the liquid cooling structure inside the motor 200 to provide heat dissipation and cooling functions for the driver 100 at the same time. As Figure 5 shown, it is a state diagram of the driver 100 installed on the heat dissipation base body 1. As Figure 6As shown in the figure, it is a state diagram of the heat dissipation base of the present utility model applied to the integrated installation of the driver 100 and the motor 200. It should be noted that in the embodiment of the present utility model, the driver 100 does not need to be provided with a heat dissipation structure, that is, there is no independently provided heat dissipation structure such as a heat dissipation fan or heat dissipation fins in the prior art inside and outside it. Its heat dissipation channel is constructed through the heat dissipation seat body 1 and realizes the heat dissipation and temperature reduction of the driver 100 through the liquid cooling heat dissipation structure inside the motor 200.

[0027] Specifically, as Figure 1 shown, the upper surface of the heat dissipation seat body 1 is a milled flat driver heat conduction installation surface 11, and the driver heat conduction installation surface 11 is used to achieve a tight fit connection with the surface of the heat dissipation plate module of the driver 100, facilitating the rapid and direct heat transfer from the driver 100 to the heat dissipation seat body 1 and improving the heat dissipation efficiency of the driver 100. As Figure 1 and Figure 2 shown, the lower surface of the heat dissipation seat body 1 is an arc-shaped structure, specifically including a liquid cooling heat conduction part 12 that is tightly attached to the surface of the liquid cooling conduction section of the motor main body, a rear fixing part 13 fixedly connected to the motor tail end heat dissipation cover, and a front fixing part 14 fixedly connected to the motor front end shaft cover. Among them, a motor wire outlet 15 that penetrates the rear fixing part 13 is provided in the central area of the driver heat conduction installation surface 11 corresponding to the rear fixing part 13, and the motor wire outlet 15 is used for the circuit wire between the driver 100 and the motor 200 to pass through, enabling the closed installation of the circuit wire between the two. To achieve the sealed installation of the driver 100 on the heat dissipation base, as Figure 1 shown, a closed-loop rectangular sealing groove 16 is provided on the periphery of the driver heat conduction installation surface 11, and a rectangular sealing ring that is waterproof and closely attached to the bottom of the driver housing is provided in the rectangular sealing groove 16. The motor wire outlet 15 is located inside the enclosed area of the rectangular sealing groove 16. Through the rectangular sealing ring, the installation surface between the driver 100 and the heat dissipation seat body 1 can be kept in a sealed state, preventing water from entering the bottom opening of the driver 100 through the gap between the two installation joint surfaces. As a preferred implementation manner of the present utility model, the width of the rectangular sealing groove 16 is set to 2 mm, and the depth is set to 1.5 mm.

[0028] Furthermore, in the preferred embodiment of the present utility model, as Figure 1 and Figure 2 shown, both sides of the front fixing part 14 extend forward to form fixed strengthening arms 141, and the ends of the fixed strengthening arms 141 are formed with fixing feet 142 that are fixed to the motor front end shaft cover. The front fixing part 14 cooperates with the rear fixing part 13 to firmly fix the driver 100 on the motor 200, preventing the driver 100 from being shaken off due to the vibration generated during the operation of the motor 200. As Figure 2As shown, the liquid-cooled heat conduction part 12 is formed with a first arc surface 121 adapted to the surface of the liquid-cooled conduction section of the motor body, the rear fixing part 13 is formed with a second arc surface 131 adapted to the circumferential side surface of the motor tail-end heat dissipation cover, and the lower surface of the fixing foot 142 is formed with a third arc surface 1421 adapted to the circumferential side surface of the motor front-end shaft cover. Through the first arc surface 121, the second arc surface 131 and the third arc surface 1421, the driver 100 can be closely attached and installed on the motor 200, so that the installation joint surface between the motor and the heat dissipation base is completely attached, improving the heat transfer efficiency.

[0029] Furthermore, in the preferred embodiment of the present invention, as Figure 2 shown, to adapt to the surface structure form of the motor 200, a rear inclined surface step 122 for transitional connection is formed between the first arc surface 121 and the second arc surface 131, and a front inclined surface step 123 for transitional connection is formed between the first arc surface 121 and the third arc surface 1421. As Figure 3 and Figure 4 shown, they are respectively the front and rear end front views of the heat dissipation base body 1, wherein, as Figure 2 shown, the slopes of the rear inclined surface step 122 and the front inclined surface step 123 face each other, which can provide an anti-detachment limiting effect on the heat dissipation base, and further strengthen the installation stability between the heat dissipation base body 1 and the motor 200. As Figure 1 and Figure 2 shown, a through first driver installation hole 17 is opened inside the enclosed area of the rectangular sealing groove 16 on the driver heat conduction installation surface 11, and the end hole of the first driver installation hole 17 on the driver heat conduction installation surface 11 has a counterbore step. The nut of the installation screw is sunk in the counterbore step of the first driver installation hole 17, and the driver 100 is firmly fixed on the heat dissipation base body 1 through the installation screw arranged in the first driver installation hole 17. As Figure 1 and Figure 2 shown, a row of second driver installation holes 18 for fixing the driver housing are respectively opened along the front and rear sides of the driver heat conduction installation surface 11. Among them, the second driver installation holes 18 are located at the inner edge of the enclosed area of the rectangular sealing groove 16. The circumferential edge of the driver 100 can be firmly fixed on the driver heat conduction installation surface 11 through the installation screws arranged in the two groups of second driver installation holes 18 along the front and rear edges, avoiding a relatively wide unclosed gap between the circumferential edge of the driver 100 and the driver heat conduction installation surface 11, and improving the sealing performance between the two installation joint surfaces.

[0030] Furthermore, in the preferred embodiment of the present invention, as Figure 2As shown in the figure, the heat dissipation base body 1 is fixed to the motor 200 through a screw mounting structure. The screw mounting structure includes rear motor fixing mounting holes 19 that are distributed at four corners at the position corresponding to the rear fixing part 13 on the heat conduction mounting surface 11 of the driver, and front motor fixing mounting holes 1422 provided on the fixing feet 142. Among them, the rear motor fixing mounting holes 19 are through holes. In some embodiments, the heat dissipation base body 1 can also be fixed to the motor 200 by direct welding. The heat dissipation base body 1 is generally made of aluminum alloy, and iron materials can also be used. Through the heat dissipation base of the present utility model, the driver and the motor can be integrated, and at the same time, the driver has the functions of dustproof and waterproof, is convenient for installation, can further reduce the installation space, and can establish a heat transfer bridge between the driver and the motor through the heat dissipation base, so as to achieve rapid cooling of the driver. It should be noted that the heat dissipation base of the present utility model is applicable to the combination of a motor with liquid cooling and a driver. Through the heat dissipation bridge established by the heat dissipation base, the driver can be simplified in design, that is, there is no need to separately provide heat dissipation structures such as heat dissipation fans and heat dissipation fins in the prior art inside or outside the driver.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the description in the specification are only the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A motor and driver integrated transition heat dissipation base, comprising an integrally formed heat dissipation base body (1), characterized in that: The upper surface of the heat sink body (1) is a milled driver heat conduction mounting surface (11), and the driver heat conduction mounting surface (11) is tightly fitted and connected to the surface of the heat sink module of the driver. The lower surface of the heat sink body (1) is an arc-shaped structure, comprising a liquid cooling heat conduction portion (12) tightly fitted and connected to the surface of the liquid cooling conduction section of the motor body, a rear fixing portion (13) fixedly connected to the heat dissipation cover at the rear end of the motor, and a front fixing portion (14) fixedly connected to the shaft cover at the front end of the motor. The driver heat conduction mounting surface (11) is provided with a motor outlet (15) passing through the rear fixing portion (13) at a central area corresponding to the rear fixing portion (13). The driver heat conduction mounting surface (11) is provided with a closed-loop rectangular sealing groove (16) at its periphery. The rectangular sealing groove (16) is provided with a rectangular sealing ring that is waterproof and tightly fitted to the bottom of the driver housing. The motor outlet (15) is located inside the enclosed area of ​​the rectangular sealing groove (16).

2. The motor and driver integrated transition heat dissipation base according to claim 1, characterized in that: Both sides of the front fixing portion (14) extend forward and are formed with fixing reinforcement arms (141); the ends of the fixing reinforcement arms (141) are formed with fixing feet (142) fixed to the shaft cover at the front end of the motor.

3. The motor and driver integrated transition heat dissipation base according to claim 2, characterized in that: The liquid-cooled heat-conducting portion (12) is formed with a first arc surface (121) adapted to the surface of the liquid-cooled conduction section of the motor body, the rear fixing portion (13) is formed with a second arc surface (131) adapted to the circumferential side surface of the heat dissipation cover at the rear end of the motor, and the lower surface of the fixing foot (142) is formed with a third arc surface (1421) adapted to the circumferential side surface of the shaft cover at the front end of the motor.

4. The motor and driver integrated transition heat dissipation base according to claim 3, characterized in that: A transitionally connected rear bevel step (122) is formed between the first curved surface (121) and the second curved surface (131), and a transitionally connected front bevel step (123) is formed between the first curved surface (121) and the third curved surface (1421).

5. The motor and driver integrated transition heat dissipation base according to claim 1, characterized in that: The driver heat-conducting mounting surface (11) is provided with a through first driver mounting hole (17) inside the area enclosed by the rectangular sealing groove (16); the first driver mounting hole (17) has a countersunk step at one end of the driver heat-conducting mounting surface (11).

6. The motor and driver integrated transition heat dissipation base according to claim 5, characterized in that: The driver heat-conducting mounting surface (11) is provided with a row of second driver mounting holes (18) for fixing the driver housing at both front and rear edges, and the second driver mounting holes (18) are located at the inner edge of the area enclosed by the rectangular sealing groove (16).

7. The motor and driver integrated transition heat dissipation base according to claim 2, characterized in that: The heat sink body (1) is fixed to the motor via a screw mounting structure, wherein the screw mounting structure comprises rear motor fixing mounting holes (19) arranged on the heat conductive mounting surface (11) of the driver and distributed in four corners at positions corresponding to the rear fixing portion (13), and front motor fixing mounting holes (1422) arranged on the fixing foot (142), wherein the rear motor fixing mounting holes (19) are through holes.

8. The motor and driver integrated transition heat dissipation base according to claim 1, characterized in that: The heat sink body (1) is fixed to the motor by direct welding.

9. The motor and driver integrated transition heat dissipation base according to claim 1, characterized in that: The rectangular sealing groove (16) has a width of 2 mm and a depth of 1.5 mm.

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