Servo driver

Abstract

The servo driver provided by the embodiment of the utility model comprises a shell and a radiator, the radiator comprises a substrate and a side plate arranged at the side edge of the substrate, the shell covers the substrate and is connected with the side plate in a buckling manner, the substrate and the shell are enclosed to form an accommodating cavity of an electronic element, and the accommodating cavity is provided with a plurality of through holes. The substrate abuts against the edge of the shell, and the projection area of the substrate coincides with the projection area of the shell on the horizontal plane. According to the embodiment of the invention, the side plates are arranged on the side edges of the substrate of the radiator, and the size of the substrate is set to be the same as that of the shell, so that the radiating area of the radiator is effectively increased, the radiating effect of the radiator is improved, and the performance of the servo driver is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial automation equipment, in particular to a servo driver. Background Art

[0002] A servo drive, also known as a servo controller or servo amplifier, is a controller used to control a servo motor. It controls the servo motor in three ways: position, speed, and torque. It is mainly used in high-precision positioning systems.

[0003] In order to improve the flexibility of industrial equipment or servo systems, it is necessary to use multiple servo drives to drive multiple motors respectively, thereby realizing the movement of industrial equipment or servo systems in multiple directions. However, using multiple servo drives to drive multiple motors respectively will cause the servo drives required to drive multiple motors to occupy a large amount of space. In order to reduce the size of the servo drive, a multi-axis servo drive is proposed, which can control the movement of multiple servo motors with one multi-axis servo drive. Since the multi-axis servo drive needs to control multiple servo motors, a large number of electronic components need to be set up, including power components with large heat generation. At this time, a radiator needs to be installed inside the drive to dissipate heat for the servo drive to ensure the normal operation of the multi-axis servo drive. However, after reducing the size of the servo drive, the volume of the radiator installed inside the drive will also be reduced accordingly, which reduces the heat dissipation area of ​​the radiator, resulting in poor heat dissipation effect, and thus reduces the performance of the multi-axis servo drive. Utility Model Content

[0004] The utility model provides a servo driver, aiming to solve the problems of small heat dissipation area and poor heat dissipation effect of the radiator in the existing servo driver.

[0005] An embodiment of the present utility model provides a servo driver, including a shell and a radiator, wherein the radiator includes a substrate and side panels arranged on the sides of the substrate, the shell cover is arranged on the substrate and is snap-connected to the side panels, the substrate and the shell are enclosed to form a accommodating cavity for electronic components, the edges of the substrate and the shell abut against each other, and the projection areas of the substrate and the shell on the horizontal plane overlap.

[0006] Specifically, the housing includes a cover shell and a bottom shell. The cover shell and the substrate form a first accommodating cavity, and the bottom shell and the substrate form a second accommodating cavity.

[0007] Specifically, the cover shell includes a panel and a first wall panel arranged on the side of the panel, one end of the first wall panel is connected to the panel, and the other end is abutted against the substrate; the bottom shell includes a bottom plate and a second wall panel arranged on the side of the bottom plate, the bottom plate is abutted against one end of the side plate away from the substrate, one end of the second wall panel is connected to the bottom plate, and the other end is abutted against the substrate.

[0008] Specifically, the side panels are respectively provided on two opposite sides of the base plate, and the second wall panels are respectively provided on two opposite sides of the bottom plate. The side panels and the second wall panels are side walls adjacent to the servo driver.

[0009] Specifically, at least one of the side panel, the first wall panel, and the second wall panel is provided with a plurality of heat dissipation windows.

[0010] Specifically, the side panels are provided with snap-fit ​​structures respectively connected and fixed to the first wall panel and the second wall panel.

[0011] Specifically, the electronic components include a power module, a circuit board and a control board. The substrate includes a first surface and a second surface relative to each other. The first surface is provided with a mounting column for mounting the circuit board, and the circuit board is installed in the first accommodating cavity; the second surface is provided with a heat dissipation fin, and the heat dissipation fin is located in the second accommodating cavity. The side of the substrate close to the heat dissipation fin is provided with an avoidance hole, and the heating element arranged on the circuit board extends into the second accommodating cavity through the avoidance hole.

[0012] Specifically, a duct baffle and a fan assembly are respectively provided on one side close to the heat dissipation fins, a heat dissipation duct is formed between the duct baffle and the heat dissipation fins, at least part of the heating element is located in the heat dissipation duct, and the fan assembly is located at one end of the heat dissipation fins.

[0013] Specifically, a battery box mounting structure is provided on the outer side of the cover shell and the radiator, and the battery box mounting structure includes at least two slide grooves, at least two limit baffles and at least one slot, at least two of the slide grooves are arranged on the cover shell along a first direction, at least two of the limit baffles are arranged on the side panel along the first direction, and at least one slot is arranged on the side panel along a second direction, and the slot is located at the end of the two limit baffles along the battery box insertion direction, and the first direction and the second direction are perpendicular.

[0014] Specifically, the servo driver further includes a grounding terminal connected to the side plate and / or the base plate, and mounting portions of the servo driver are respectively provided at both ends of the side plate.

[0015] The present invention provides a servo drive comprising a housing and a heat sink. The heat sink comprises a base plate and side panels disposed on the sides of the base plate. The housing is mounted on the base plate and is snap-connected to the side panels. The base plate and the housing enclose a cavity for accommodating electronic components. The edges of the base plate and the housing abut against each other, and the projections of the base plate and the housing on a horizontal plane overlap. By disposing side panels on the sides of the heat sink's base plate and setting the base plate's dimensions to be the same as the housing's, this embodiment effectively increases the heat dissipation area of ​​the heat sink, improves the heat dissipation effect of the heat sink, and thereby enhances the performance of the servo drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the overall structure of a servo drive provided by an embodiment of the present utility model;

[0018] Figure 2 An exploded view of the overall structure of a servo drive provided by an embodiment of the present utility model;

[0019] Figure 3 A first installation diagram of the first surface of the substrate and each component;

[0020] Figure 4 is a second installation diagram of the first surface of the substrate and each component;

[0021] Figure 5 is a schematic structural diagram of the first surface of the substrate;

[0022] Figure 6 is a schematic structural diagram of the second surface of the substrate;

[0023] Figure 7 This is a schematic diagram of the second side of the substrate and the installation of various components.

[0024] Description of the symbols in the figure:

[0025] 1. Housing; 11. Cover; 111. Panel; 112. First wall; 113. Slide; 12. Bottom housing; 121. Bottom plate; 122. Second wall;

[0026] 2. Radiator; 21. Base plate; 211. First surface; 212. Second surface; 213. Mounting position; 214. Avoidance hole; 215. Mounting column; 22. Side panel; 221. Heat dissipation window; 222. Limit baffle; 223. Slot; 23. Heat dissipation fin; 24. Air duct baffle; 25. Fan assembly; 26. Mounting portion;

[0027] 3. Electronic components; 31. Power module; 32. Circuit board; 321. Output terminal; 33. Control board;

[0028] 4. Buckle structure; 41. First buckle structure; 411. First buckle; 412. First buckle hole; 42. Second buckle structure; 421. Second buckle; 422. Second buckle hole;

[0029] 5. Heating element;

[0030] 6. Encoder battery box;

[0031] 7. Ground terminal. DETAILED DESCRIPTION

[0032] 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 embodiments described are 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 making creative efforts are within the scope of protection of the present invention.

[0033] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0034] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0035] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] See also Figure 1-2An embodiment of the present invention provides a servo driver, including a housing 1 and a radiator 2. The radiator 2 includes a substrate 21 and a side plate 22 arranged on the side of the substrate 21. The housing 1 is covered on the substrate 21 and is snap-connected with the side plate 22. The substrate 21 and the housing 1 are enclosed to form a accommodating cavity for the electronic component 3. The edges of the substrate 21 and the housing 1 abut against each other, and the projection areas of the substrate 21 and the housing 1 on the horizontal plane coincide with each other.

[0037] In this embodiment, the servo drive includes a housing 1 and a radiator 2. The radiator 2 includes a substrate 21 and a side panel 22 arranged on the side of the substrate. When the housing 1 is covered on the substrate 21, the side panel 22 and the edge of the housing 1 are abutted against each other, and then the side panel 22 is snap-connected to the housing 1, that is, a snap-fit ​​structure 4 is provided on the side panel 22 and the housing 1. The snap-fit ​​structure 4 can be used to complete the installation of the radiator 2 and the housing 1. In addition, when the housing 1 is projected on a horizontal plane, the projected area of ​​the housing 1 and the substrate 21 completely overlap, that is, the length and width of the substrate 21 are the same as the length and width of the housing 1, which reduces the problem of the servo drive's increased size due to the radiator 2 occupying additional space, making the servo drive more compact and efficient. By setting the size of the substrate 21 and by providing the side panel 22 on the side of the substrate 21, this embodiment effectively increases the heat dissipation area of ​​the radiator, thereby improving the heat dissipation efficiency.

[0038] Specifically, such as Figure 2 As shown, the housing 1 includes a cover shell 11 and a bottom shell 12 . The cover shell 11 and the base plate 21 form a first accommodating cavity, and the bottom shell 12 and the base plate 21 form a second accommodating cavity.

[0039] In this embodiment, the shell 1 includes a cover shell 11 and a bottom shell 12, the radiator 2 is installed between the cover shell 11 and the bottom shell 12, the accommodating cavity includes a first accommodating cavity and a accommodating cavity, the substrate 21 and the cover shell 11 are enclosed to form a first accommodating cavity, and the substrate 21 and the bottom shell 12 are enclosed to form a second accommodating cavity. A part of the electronic component 3 can extend from the first accommodating cavity into the second accommodating cavity. When the electronic component 3 generates heat during operation, the heat can be quickly conducted from the first accommodating cavity to the second accommodating cavity through the substrate 21, thereby reducing the temperature of the electronic component 3.

[0040] Specifically, such as Figure 2 As shown, the cover shell 11 includes a panel 111 and a first wall panel 112 arranged on the side of the panel 111, one end of the first wall panel 112 is connected to the panel 111, and the other end abuts against the substrate 21; the bottom shell 12 includes a bottom plate 121 and a second wall panel 122 arranged on the side of the bottom plate 121, the bottom plate 121 abuts against one end of the side panel 22 away from the substrate 21, one end of the second wall panel 122 is connected to the bottom plate 121, and the other end abuts against the substrate 21.

[0041] In this embodiment, the first wall panel 112 is disposed on the side of the panel 111. The first wall panel 112, the panel 111, and the base plate 21 enclose a first accommodating cavity. The second wall panel 122 is disposed on the side of the bottom plate 121. The side panels 22 are disposed on the side of the base plate 21. The bottom plate 121, the second wall panel 122, the side panels 22, and the base plate 21 enclose a second accommodating cavity. In this embodiment, the servo drive is enclosed into a cubic structure by the panel 111 and first wall panel 112 of the cover, the side panels 22, and the bottom plate 121 and second wall panel 122 of the bottom case, resulting in a simple overall design.

[0042] Specifically, such as Figure 2 As shown, two opposite sides of the base plate 21 are respectively provided with side panels 22 , and two opposite sides of the bottom plate 121 are respectively provided with second wall panels 122 . The side panels 22 and the second wall panels 122 are side walls adjacent to the servo drive.

[0043] In this embodiment, the second wall panel 122 is arranged on two opposite sides of the bottom plate 121, and the side panel 22 is arranged on two opposite sides of the base plate 21. The side panel 22 and the second wall panel 122 are located on staggered sides, that is, the opposite side of the two side panels 22 is perpendicular to the opposite side of the two second wall panels 122, so that the side panel 22 and the second wall panel 122 are enclosed to form the side wall of the servo drive. Specifically, the enclosing structure of the side wall is: side panel 22-second wall panel 122-side panel 22-second wall panel 122. The side panel 22 is part of the side wall of the servo drive, which effectively increases the heat dissipation area of ​​the radiator 2.

[0044] Specifically, such as Figure 2 As shown, at least one of the side panel 22 , the first wall panel 112 , and the second wall panel 122 is provided with a plurality of heat dissipation windows 221 .

[0045] In this embodiment, the heat dissipation window 221 provides a channel for air circulation, allowing heat generated within the servo drive to be more effectively dissipated through the heat dissipation window 221, thereby reducing the internal temperature and preventing the servo drive from overheating. By effectively dissipating heat from the servo drive, this embodiment maintains the operating temperature of the servo drive components within a safe range, thereby improving the reliability and stability of the servo drive and extending its service life.

[0046] Specifically, such as Figure 1-2 As shown, the side panel 22 is provided with a snap-fit ​​structure 4 which is respectively connected and fixed to the first wall panel 112 and the second wall panel 122 .

[0047] In this embodiment, the snap-fit ​​structure 4 includes a first snap-fit ​​structure 41 and a second snap-fit ​​structure 42. The first snap-fit ​​structure 41 includes a first snap-fit ​​411 provided on the side panel 22 and a first snap-fit ​​hole 412 provided on the first wall panel 112; or the first snap-fit ​​structure 41 includes a first snap-fit ​​hole provided on the side panel 22 and a first snap-fit ​​provided on the first wall panel 112, and the first snap-fit ​​411 can be snapped into the first snap-fit ​​hole 412; the second snap-fit ​​structure 42 includes a second snap-fit ​​421 provided on the second wall panel 122 and a second snap-fit ​​hole 422 provided on the side panel 22; or the second snap-fit ​​structure 42 includes a second snap-fit ​​hole provided on the second wall panel 122 and a second snap-fit ​​provided on the side panel 22, and the second snap-fit ​​421 can be snapped into the second snap-fit ​​hole 422. The first snap-fit ​​structure 41 and the second snap-fit ​​structure 42 facilitate installation and removal of the radiator 2 and the housing 1.

[0048] Specifically, such as Figure 2-6 As shown, the electronic component 3 includes a power module 31, a circuit board 32 and a control board 33. The substrate 21 includes a first surface 211 and a second surface 212 relative to each other. The first surface 211 is provided with a mounting column 215 for mounting the circuit board 32, and the circuit board 32 is located in the first accommodating cavity; the second surface 212 is provided with a heat dissipation fin 23, and the heat dissipation fin 23 is located in the second accommodating cavity. The side of the substrate 21 close to the heat dissipation fin 23 is provided with an avoidance hole 214, and the heating element 5 arranged on the circuit board 32 extends into the second accommodating cavity through the avoidance hole 214.

[0049] In this embodiment, the first surface 211 of the substrate 21 and the cover shell 11 form a first accommodating cavity, and the electronic components 3 are all located in the first accommodating cavity. A mounting position 213 is provided on the first surface 211 of the substrate 21, and the power module 31 is installed on the mounting position 213. A plurality of mounting columns 215 are provided on the first surface 211 for installing the circuit board 32. At this time, the circuit board 32 is located on the power module 31 and the size of the circuit board 32 is adapted to the first surface 211. The control board 33 is installed on the circuit board 32, and the power module 31, the circuit board 32 and the control board 33 are electrically connected, thereby realizing the integration of components with multiple functions into the substrate 21, which not only reduces the complexity of the internal connections, but also improves the structural compactness of the entire servo drive. The second surface 212 of the substrate 21 forms a second accommodating cavity with the bottom shell 12 and the side panel 22. The second surface 212 of the substrate 21 is provided with a heat dissipating fin 23 at the position corresponding to the mounting position 213, that is, the heat dissipating fin 23 is located in the second accommodating cavity. The heat dissipating fin 23 can effectively dissipate the heat generated by the power module 31 to the external environment, thereby reducing the temperature of the electronic component 3, and thereby improving the stability and reliability of the entire servo drive.

[0050] Moreover, a plurality of avoidance holes 214 are provided on one side of the substrate 21 close to the heat dissipation fins 23. The plurality of avoidance holes 214 penetrate the substrate 21 and connect the first accommodating cavity and the second accommodating cavity. A heating element 5 is arranged in the avoidance holes 214. Since the size of the circuit board 32 is adapted to the first surface 211, the heating element 5 will protrude from the first surface 211 when it is located in the avoidance holes 214. If the circuit board is directly installed on the first surface 211, the installation of the heating element 5 will be affected. Therefore, a plurality of mounting posts 215 are required to be provided on the first surface 211 for mounting and supporting the circuit board 32, so that there is a certain gap between the circuit board 32 and the first surface 211. The protruding end of the heating element 5 is located in the gap. After the circuit board 32 is installed, it contacts and connects with the protruding end of the heating element 5. When the circuit board 32 and the heating element 5 are working, heat is generated. The heat can be dispersed from the gap through the avoidance holes 214 to the second accommodating cavity, avoiding the problem of local overheating, thereby improving the overall heat dissipation efficiency. Furthermore, the mounting posts 215 separate the circuit board 32 from the first surface 211, preventing direct contact between the circuit board 32 and the substrate 21, thereby reducing the risk of short circuits. Furthermore, the circuit board 32 includes multiple output terminals 321, which can be connected to a servo motor, a power supply terminal, and an encoder terminal. By placing the electronic components 3 and heat sinks 23 on different surfaces of the substrate 21, this embodiment effectively utilizes the space on the substrate 21 and prevents interference between components.

[0051] Specifically, such as Figure 7 As shown, a duct baffle 24 and a fan assembly 25 are respectively provided on one side close to the heat dissipation fin 23, a heat dissipation duct is formed between the duct baffle 24 and the heat dissipation fin 23, at least part of the heating element 5 is located in the heat dissipation duct, and the fan assembly 25 is located at one end of the heat dissipation fin 23.

[0052] In this embodiment, in order to achieve better heat dissipation inside the servo drive, an air duct baffle 24 and a fan assembly 25 are provided on one side of the second surface 212 near the heat dissipation fins 23. The air duct baffle 24 and the heat dissipation fins 23 form a heat dissipation duct. The fan assembly 25 is provided at one end of the heat dissipation fins 23 and is located at the edge of the heat dissipation duct. When the fan assembly 25 is turned on, a continuous airflow can be generated and transmitted through the heat dissipation duct, and the heat in the second storage space is diffused to the side wall of the servo drive through the heat dissipation duct and the heat dissipation fins 23 and diffused to the outside through a plurality of heat dissipation windows 221, thereby achieving heat dissipation. In addition, the fan assembly 25 can also introduce outside air into the servo drive, thereby accelerating the heat dissipation process. In this embodiment, by placing part of the heating element 5 in the air duct, the heat can be taken away by the fan assembly 25, reducing the accumulation of heat around the heating element 5, helping to maintain the stability of the system, and preventing performance degradation or equipment damage caused by overheating.

[0053] Specifically, such as Figure 2 As shown, a battery box mounting structure is provided on the outer side of the cover shell 11 and the radiator 2, and the battery box mounting structure includes at least two slide grooves 113, at least two limit baffles 222 and at least one slot 223, at least two slide grooves 113 are provided on the cover shell 11 along the first direction, at least two limit baffles 222 are provided on the side panel 22 along the first direction, and at least one slot 223 is provided on the side panel 22 along the second direction, and the slot 223 is located at the end of the two limit baffles 222 along the insertion direction of the encoder battery box 6, and the first direction and the second direction are perpendicular.

[0054] In this embodiment, the servo drive further includes an encoder battery box 6, which is mounted on the outside of the cover 11 and the radiator 2. Since the servo drive contains electronic components 3 and heating elements 5, these components generate heat during operation, causing the temperature inside the servo drive to rise. If the encoder battery box 6 is located inside the servo drive, it is easy to cause the encoder battery box 6 to overheat, thereby affecting the operation of the servo drive. Therefore, it is preferred to locate the encoder battery box 6 on the outside of the cover 11 and the radiator 2, so that the replacement and maintenance of the battery in the encoder battery box 6 becomes more convenient. Moreover, the external position of the encoder battery box 6 can better contact with the ambient air, which helps to dissipate heat and cool the encoder battery box 6, keep the battery at a lower operating temperature, and thus improve the efficiency and reliability of the battery.

[0055] In order to install the encoder battery box 6, a battery box mounting structure is set on the outer side of the cover shell 11 and the radiator 2. The battery box mounting structure includes at least two slide grooves 113, two limit baffles 222 and a slot 223. The two slide grooves 113 are set on the outer side of the cover shell 11 along the first direction. A guide position is formed between the two slide grooves 113 to guide the insertion of the encoder battery box 6. The two limit baffles 222 are set on the outer side of the side plate 22. A limiting position is formed between the two limit baffles 222 to limit the inserted encoder battery box 6 from shifting due to vibration or external force during use. The slot 223 is set on the outer side of the side plate 22 and is located at the end of the insertion direction of the encoder battery box 6, so that the encoder battery box 6 located at the limiting position is inserted into the slot 223 toward one end of the bottom shell 12. After the encoder battery box 6 of this embodiment is installed, it is clamped on both sides by two slide grooves 113 and two limit baffles 222, forming a stable structure that effectively prevents the encoder battery box 6 from shaking during operation. In addition, the slide grooves 113 and limit baffles 222 are arranged along a first direction, and the slots 223 are arranged along a second direction, and the first direction is perpendicular to the second direction. This ensures that the encoder battery box 6 is well fixed in both the horizontal and vertical directions, preventing accidental falling due to external forces. In specific implementations, multiple battery box mounting structures can be provided for installing multiple encoder battery boxes 6.

[0056] In addition, the chute 113 is an L-shaped chute, and the L-shaped openings of the two L-shaped chute are arranged relative to each other. The two L-shaped chute and the two limit baffles 222 are open at both ends along the first direction, and the slot 223 is located at the end of the two limit baffles 222 along the insertion direction of the encoder battery box 6. The L-shaped opening of the L-shaped chute allows the encoder battery box 6 to be more accurately aligned during the insertion process, ensuring that the encoder battery box 6 can be accurately positioned in the predetermined position during installation. During the insertion process, the two L-shaped chute and the two limit baffles 222 cooperate to fix the encoder battery box 6 to prevent it from being displaced or shaking during installation or use. Since the two L-shaped chute and the two limit baffles 222 are open at both ends along the first direction, the encoder battery box 6 can be more easily inserted and removed, thereby realizing the installation and removal of the encoder battery box 6. In addition, in order to make the installation of the encoder battery box 6 more stable, a slot 223 is set at the end of the insertion direction of the encoder battery box 6 to fix the tail of the encoder battery box 6, that is, the L-shaped slide groove and the limit baffle 222 limit the left and right directions of the encoder battery box 6, and the slot 223 limits the front and back directions of the encoder battery box 6, thereby fixing the entire encoder battery box 6.

[0057] Specifically, such as Figure 4-7 As shown, the servo driver further includes a grounding terminal 7 connected to the side plate 22 and / or the base plate 21 , and mounting portions 26 of the servo driver are respectively provided at both ends of the side plate 22 .

[0058] In this embodiment, the grounding terminal 7 can effectively prevent the circuits and other components of the side panel 22 and / or the substrate 21 from being damaged when the current is too high. Therefore, the electrical noise and interference are guided to the ground through the grounding terminal 7, reducing the impact on the circuit, thereby maintaining the normal operation of the circuit and reducing the occurrence of servo drive failures during operation. In a specific implementation, the grounding terminal 7 is set at the corner position of the substrate 21 and / or the side panel 22, and the end of the side panel 22 is provided with a mounting portion 26, which is used to connect the entire servo drive to the external component through the four mounting portions 26 when the radiator 2 is snap-connected to the housing 1, thereby simplifying the installation steps of the servo drive and the external component. After installation, the servo drive can be kept stable in the entire device, reducing vibration and displacement, thereby improving the reliability of the entire device. In this embodiment, by providing multiple mounting portions 26 at the end of the side panel 22, the servo drive is compatible with a variety of external components, so that the servo drive can adapt to different application requirements and equipment configurations.

[0059] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A servo drive, characterized in that: It includes a shell and a radiator, the radiator includes a substrate and a side panel arranged on the side of the substrate, the shell cover is arranged on the substrate and is snap-connected to the side panel, the substrate and the shell are combined to form a accommodating cavity for electronic components, the edges of the substrate and the shell are in contact with each other, and the projection areas of the substrate and the shell on the horizontal plane overlap.

2. The servo driver according to claim 1, wherein: The housing includes a cover shell and a bottom shell. The cover shell and the substrate form a first accommodating cavity, and the bottom shell and the substrate form a second accommodating cavity.

3. The servo driver according to claim 2, characterized in that: The cover shell includes a panel and a first wall panel arranged on the side of the panel, one end of the first wall panel is connected to the panel, and the other end abuts the substrate; the bottom shell includes a bottom plate and a second wall panel arranged on the side of the bottom plate, the bottom plate abuts against one end of the side plate away from the substrate, one end of the second wall panel is connected to the bottom plate, and the other end abuts against the substrate.

4. The servo driver according to claim 3, characterized in that: The side panels are respectively provided on two opposite sides of the base plate, and the second wall panels are respectively provided on two opposite sides of the bottom plate. The side panels and the second wall panels are side walls adjacent to the servo drive.

5. The servo driver according to claim 3, characterized in that: At least one of the side panels, the first wall panels, and the second wall panels is provided with a plurality of heat dissipation windows.

6. The servo driver according to claim 4, characterized in that: The side panels are provided with snap-fit ​​structures respectively connected and fixed to the first wall panel and the second wall panel.

7. The servo driver according to claim 2, characterized in that: The electronic components include a power module, a circuit board and a control board. The substrate includes a first surface and a second surface relative to each other. The first surface is provided with a mounting column for mounting the circuit board, and the circuit board is installed in the first accommodating cavity; the second surface is provided with a heat dissipation fin, and the heat dissipation fin is located in the second accommodating cavity. The side of the substrate close to the heat dissipation fin is provided with an avoidance hole, and the heating element arranged on the circuit board extends into the second accommodating cavity through the avoidance hole.

8. The servo driver according to claim 7, characterized in that: A duct baffle and a fan assembly are respectively provided on one side close to the heat dissipation fins, a heat dissipation duct is formed between the duct baffle and the heat dissipation fins, at least part of the heating element is located in the heat dissipation duct, and the fan assembly is located at one end of the heat dissipation fins.

9. The servo driver according to claim 8, characterized in that: A battery box mounting structure is provided on the outer side of the cover shell and the radiator, and the battery box mounting structure includes at least two slide grooves, at least two limit baffles and at least one slot, at least two of the slide grooves are provided on the cover shell along a first direction, at least two of the limit baffles are provided on the side panel along the first direction, and at least one slot is provided on the side panel along a second direction, and the slot is located at the ends of the two limit baffles along the battery box insertion direction, and the first direction and the second direction are perpendicular.

10. The servo driver according to any one of claims 1 to 9, characterized in that: It also includes a grounding terminal connected to the side plate and / or the base plate, and the two ends of the side plate are respectively provided with mounting parts of the servo drive.

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