Servo driver and fixing structure of cooling fan of servo driver

Abstract

The utility model discloses a servo driver and a servo driver heat radiation fan fixing structure, the servo driver heat radiation fan fixing structure comprises a heat radiation pedestal and a housing, the heat radiation pedestal is provided with a heat radiator, the heat radiation pedestal is also provided with an accommodating groove, the accommodating groove is used for accommodating a part of the heat radiation fan, and the housing is provided with a heat radiation groove. The air outlet end of the cooling fan faces the radiator; the shell covers the heat dissipation base, and an air inlet hole is formed in the side, facing the air inlet end of the heat dissipation fan, of the shell. The side, at least facing the notch of the containing groove, of the shell is provided with an abutting part so as to abut against the top of the cooling fan. According to the heat dissipation device, the containing groove and the abutting part jointly form the fixing structure of the heat dissipation fan, only part of the heat dissipation fan needs to be installed in the containing groove, the shell covers the heat dissipation base, and then the heat dissipation fan can be fixed. And when the cooling fan needs to be disassembled, the cooling fan can be easily disassembled only by disassembling the shell and pulling out the cooling fan from the accommodating groove, so that the operation is convenient and simple.

Description

Technical Field

[0001] This application relates to the technical field of servo drivers, and particularly relates to a fixed structure for a servo driver and a heat dissipation fan of the servo driver. Background Art

[0002] A servo driver is a drive control device used to drive and control a servo motor, also known as a "servo controller" or "servo amplifier", which belongs to a part of the servo system and is mainly applied to high-precision positioning systems.

[0003] A large number of electronic devices are integrated inside the servo driver, which will generate a large amount of heat during operation. To prevent the working temperature of the servo driver from being too high and affecting the operation stability and efficiency of the device, a heat dissipation fan is equipped for cooling in related technologies.

[0004] The heat dissipation fan is usually fixed at the position where the servo driver needs to dissipate heat by means of screws, resulting in a relatively complex product assembly process, which is time-consuming and laborious. At the same time, when the heat dissipation fan needs to be repaired or replaced, the disassembly process is cumbersome and the efficiency is low. Utility Model Content

[0005] This application aims to provide a fixed structure for a servo driver and a heat dissipation fan of the servo driver, which fixes the heat dissipation fan in a quick-release manner to facilitate improving the disassembly and assembly efficiency during maintenance or replacement.

[0006] According to the first aspect of this application, this application provides a fixed structure for a heat dissipation fan of a servo driver, including:

[0007] A heat dissipation base, on which a radiator is provided, and a receiving groove is further provided on the heat dissipation base, and the receiving groove is used to accommodate part of the heat dissipation fan and make the air outlet end of the heat dissipation fan face the radiator;

[0008] A housing, which is buckled on the heat dissipation base, and an air inlet hole is provided on one side of the housing facing the air inlet end of the heat dissipation fan; at least one abutting portion is provided on at least one side of the housing facing the notch of the receiving groove to abut against the top of the heat dissipation fan.

[0009] As a further solution of the fixed structure for the heat dissipation fan of the servo driver provided by this application, at least one first blocking portion is further provided on the inner side wall of the receiving groove, and the first blocking portion is used to abut against the side portion of the heat dissipation fan.

[0010] As a further solution of the fixed structure for the heat dissipation fan of the servo driver provided by this application, at least one second blocking portion is further provided on the side wall of the receiving groove on the side of the air outlet end of the heat dissipation fan, and the second blocking portion is used to block the air outlet end of the heat dissipation fan.

[0011] As a further solution of the fixing structure of the servo driver cooling fan provided by the present application, at least one third blocking portion is further provided on a side wall of the accommodating groove facing the air inlet end of the cooling fan, and the third blocking portion is used to block the air inlet end of the cooling fan.

[0012] As a further solution of the fixing structure of the servo driver cooling fan provided by the present application, a holding portion is further provided on a side of the housing facing the air inlet end of the cooling fan to abut against the air inlet end of the cooling fan.

[0013] As a further solution of the fixing structure of the servo driver cooling fan provided by the present application, a notch is provided on a side of the housing facing the notch of the accommodating groove or on a side facing the air inlet end of the cooling fan. The holding portion has an elastic arm and a protruding portion. One end of the elastic arm is connected to the notch, and the protruding portion is provided at the other end of the elastic arm and protrudes toward the inner side of the housing.

[0014] As a further solution of the fixing structure of the servo driver cooling fan provided by the present application, the elastic arm is provided inside the notch, or the elastic arm is inclined and extends obliquely toward the inner side of the housing.

[0015] As a further solution of the fixing structure of the servo driver cooling fan provided by the present application, the protruding portion is a block-shaped protruding portion provided at the other end of the elastic arm, or the protruding portion is two protruding contact portions provided at the other end of the elastic arm.

[0016] As a further solution of the fixing structure of the servo driver cooling fan provided by the present application, the housing is detachably connected to the heat dissipation base.

[0017] According to the second aspect of the present application, the present application provides a servo driver, including the fixing structure of the servo driver cooling fan, and further including a cooling fan, and a part of the cooling fan is accommodated in the accommodating groove.

[0018] According to the fixed structure of the servo driver and the servo driver cooling fan in the above embodiments, the accommodation groove and the abutting portion jointly constitute the fixed structure of the cooling fan. Only part of the cooling fan needs to be installed in the accommodation groove, and the housing is buckled on the heat dissipation base, and the cooling fan can be fixed under the action of the accommodation groove and the abutting portion. When it is necessary to remove the cooling fan, the cooling fan can be easily removed by removing the housing and then pulling out the cooling fan from the accommodation groove. The operation is convenient and simple, and the structural design is simple. Only a slight improvement is needed for the existing heat dissipation base and housing, without designing other installation structural parts, and the cost is lower. The cooling fan can be directly fixed, reducing the components of the cooling fan fixed structure and the occupied space of the cooling fan installation structure, reducing the requirement for the size of the installation space, saving the use of materials, and thus saving the material cost, thereby reducing the production and use cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a perspective view of the servo driver provided by the present application;

[0020] Figure 2 FIG. 7 is an exploded view of the servo driver provided by the present application;

[0021] Figure 3 FIG. 8 is a perspective view of the heat dissipation base in the fixed structure of the servo driver cooling fan provided by the present application;

[0022] Figure 4 FIG. 9 is a schematic diagram showing the installation of the cooling fan in the accommodation groove in the servo driver provided by the present application Figure 1 ;

[0023] Figure 5 FIG. 10 is a schematic diagram showing the installation of the cooling fan in the accommodation groove in the servo driver provided by the present application Figure 2 ;

[0024] Figure 6 FIG. 11 is a schematic diagram of the housing in the fixed structure of the servo driver cooling fan provided by the present application Figure 1 ;

[0025] Figure 7 FIG. 12 is a schematic diagram of the housing in the fixed structure of the servo driver cooling fan provided by the present application Figure 2 ;

[0026] Figure 8 FIG. 13 Figure 7 is a partial enlarged schematic view of part A in FIG. 12.

[0027] Reference numerals:

[0028] Heat dissipation base 10, radiator 11, heat dissipation fins 111, accommodation groove 12, first blocking portion 121, second blocking portion 122, third blocking portion 123, mounting post 13, internal threaded hole 131, buckle 14, housing 20, air inlet hole 21, abutting portion 22, first elastic arm 221, first protruding portion 222, second elastic arm 223, second protruding portion 224, heat dissipation hole 23, notch 24, buckling position 25, bottom case 30, side frame body 40, servo drive unit 50;

[0029] Heat dissipation fan 100, top 101, air inlet end 102, air outlet end 103, side portion 104. Specific embodiments

[0030] The present application will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many details are described to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid the core part of the present application being overwhelmed by excessive description. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0031] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be adjusted or reordered in an obvious manner by those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment, and do not mean to be the necessary composition and / or sequence.

[0032] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connections (couplings).

[0033] In the related art, to cool down the servo driver, the heat dissipation fan is fixed to the part of the servo driver that needs heat dissipation, for example, fixed with screws. In this way, the assembly and disassembly process of the heat dissipation fan is complex and cumbersome, time-consuming and laborious. In some devices, other mounting structural parts are used to fix the heat dissipation fan. Although the assembly and disassembly process can be simplified, additional mounting structural parts need to be added, resulting in an increase in the product design and manufacturing costs and a complex product structure.

[0034] In view of the above problems, the present application provides a fixing structure for a servo driver and a servo driver cooling fan, which sets a receiving groove on a heat dissipation base to accommodate the cooling fan, and holds the top of the cooling fan through a holding portion on the housing, thereby fixing the cooling fan.

[0035] See Figures 1 - 5 As shown, the fixing structure of the servo driver cooling fan provided in this embodiment includes a heat dissipation base 10 and a housing 20.

[0036] A radiator 11 is provided on the heat dissipation base 10. Specifically, the radiator 11 can be located above, below or on the side of the part of the servo driver that needs to be cooled, and can cool the part of the radiator 11 that needs to be cooled. In a specific embodiment, when the servo driver is working, a large amount of heat is generated by the internal electronic components, and the radiator 11 is arranged above, below or on the side of the electronic components to cool the electronic components.

[0037] As Figure 3 shown, generally, the radiator 11 is composed of a plurality of heat dissipation fins 111. The heat dissipation fins 111 are made of a material with high thermal conductivity such as metal. The plurality of heat dissipation fins 111 are arranged side by side, which can increase the contact area with air. Usually, the heat generated by the internal electronic components of the servo driver is small, and the cooling can be achieved by the natural cooling method of contacting the heat dissipation fins 111 with air.

[0038] For a servo driver with high power consumption, the temperature of the heat generated by its electronic components during operation is higher. Therefore, it is necessary to rely on the cooling fan 100 to ensure air flow, increase the heat exchange efficiency with the heat dissipation fins 111, and thus improve the cooling efficiency.

[0039] In this embodiment, a receiving groove 12 is further provided on the heat dissipation base 10. The receiving groove 12 is used to accommodate part of the cooling fan 100 and make the air outlet end 103 of the cooling fan 100 face the radiator 11.

[0040] As Figure 4 and Figure 5 shown, the cooling fan 100 has an air inlet end 102 and an air outlet end 103. During the operation of the cooling fan 100, the air flow can flow from the air inlet end 102 to the air outlet end 103. Then the air flow blows towards the radiator 11, increasing the contact between the radiator 11 and the air, so that the radiator 11 can always be in contact with the air at a lower temperature, thereby improving the heat exchange efficiency and further improving the heat dissipation efficiency of the radiator 11.

[0041] The housing 20 is buckled on the heat dissipation base 10 and buckles the cooling fan 100 inside the housing 20. As Figure 1 and Figure 2As shown, on one side of the housing 20 facing the air inlet end 102 of the cooling fan 100, there is an air inlet hole 21, which allows external air to enter through the air inlet hole 21 during the operation of the cooling fan 100.

[0042] In this embodiment, the radiator 11 composed of a plurality of heat dissipation fins 111 is arranged along the length direction of the heat dissipation fins 111, and the cooling fan 100 is arranged at one end of the radiator 11 along the length direction of the heat dissipation fins 111. As Figure 7 shown, there is also a heat dissipation hole 23 provided on the housing 20. Among them, when the housing 20 is buckled on the heat dissipation base 10, the heat dissipation hole 23 is located at the other end of the radiator 11 along the length direction of the heat dissipation fins 111. Thus, the air passing through the radiator 11 can flow out to the outside of the housing 20, and further, the air passing through the radiator 11 can be kept circulating.

[0043] During the process of installing the cooling fan 100 in the accommodation groove 12, the cooling fan 100 can be inserted into the accommodation groove 12. Since it is necessary to ensure that the air inlet end 102 and the air outlet end 103 of the cooling fan 100 are not blocked by the accommodation groove 12, only a part of the cooling fan 100 needs to be installed in the accommodation groove 12, that is, only the bottom of the cooling fan 100 needs to be installed in the accommodation groove 12.

[0044] When the cooling fan 100 is installed in the accommodation groove 12 and the housing 20 is buckled on the heat dissipation base 10, the side of the housing 20 facing the notch of the accommodation groove 12 can limit the cooling fan 100 to prevent it from shifting. In order to further improve the fixing effect on the cooling fan 100. In this embodiment, the housing 20 is provided with a supporting portion 22 at least on the side facing the notch of the accommodation groove 12. Combining Figure 5 as shown, the supporting portion 22 provided on the side of the housing 20 facing the notch of the accommodation groove 12 can be used to abut against the top 101 of the cooling fan 100 installed in the accommodation groove 12, which can prevent the cooling fan 100 from moving up and down along its height direction, so that the cooling fan 100 can be limited in the accommodation groove 12.

[0045] In this embodiment, the receiving groove 12 and the abutting portion 22 together constitute the fixing structure of the cooling fan 100. Only part of the cooling fan 100 needs to be installed in the receiving groove 12, and the housing 20 is buckled on the cooling base 10. The fixing of the cooling fan 100 can be achieved under the action of the receiving groove 12 and the abutting portion 22. When the cooling fan 100 needs to be removed, the cooling fan 100 can be easily removed by simply removing the housing 20 and then pulling the cooling fan 100 out of the receiving groove 12. The operation is convenient and simple, and the structural design is simple. Only by slightly modifying the existing cooling base 10 and housing 20, without designing other installation structural parts, the cost is lower, and the cooling fan 100 can be directly fixed. This reduces the components of the fixing structure of the cooling fan 100 and the occupied space of the installation structure of the cooling fan 100, can reduce the requirement for the size of the installation space, save the use of materials, and thus save the material cost, thereby reducing the production and use cost of the product.

[0046] The fixing structure of the servo driver cooling fan provided by this application is used to fix the cooling fan 100 for cooling the internal radiator 11 of the servo driver. Among them, the servo driver further includes a cooling fan 100, a bottom shell 30, a side frame 40, and a servo drive unit 50. Among them, the cooling fan 100 is installed in the receiving groove 12, the bottom shell 30 is installed at the bottom of the cooling base 10, the housing 20 is installed at the top of the cooling base 10, the side frame 40 is connected to one side of the cooling base 10 and connects the housing 20 and the bottom shell 30. The housing 20, the bottom shell 30, and the side frame 40 enclose an installation space, and the servo drive unit 50 is arranged in this installation space.

[0047] In this embodiment, the servo drive unit 50 generates a large amount of heat during operation, and the radiator 11 is located at the side of the servo drive unit 50. Of course, in other embodiments, the radiator 11 can also be arranged above or below the servo drive unit 50, and the servo drive unit 50 can also be cooled.

[0048] As Figure 3 shown, in a specific embodiment, a plurality of mounting posts 13 are further provided on the cooling base 10, internal screw holes 131 are provided on each mounting post 13, and a plurality of through holes are provided on the servo drive unit 50. The servo drive unit 50 is fixed on the mounting posts 13 by bolts passing through the through holes and being screwed into the internal screw holes 131.

[0049] As Figures 2 - 5 shown, at least one first blocking portion 121 is further provided on the inner side wall of the receiving groove 12. The first blocking portion 121 is used to abut against the side portion 104 of the cooling fan 100. Among them, the side portion 104 is the side surface in the length direction of the cooling fan 100, so that the cooling fan 100 can be prevented from moving and shifting along its length direction.

[0050] At least one second blocking portion 122 is further provided on the side wall of the accommodating groove 12 located at the air outlet end 103 of the cooling fan 100. The second blocking portion 122 is used to block the air outlet end 103 of the cooling fan 100. The air outlet end 103 is located on one side of the cooling fan 100 along its width direction, which can prevent the cooling fan 100 from moving along its width direction.

[0051] Continue to see Figures 2 - 5 As shown, the side wall of the accommodating groove 12 facing the air inlet end 102 of the cooling fan 100 is further provided with at least one third blocking portion 123, and the third blocking portion 123 is used to block the air inlet end 102 of the cooling fan 100, wherein the air inlet end 102 is also located on the other side of the cooling fan 100 along its width direction, thereby preventing the cooling fan 100 from moving along its width direction.

[0052] After the shell 20 is buckled onto the heat dissipation base 10, a supporting portion 22 can be further provided on the side of the shell 20 facing the air inlet end 102 of the heat dissipation fan 100. The supporting portion 22 can be pressed against the air inlet end 102 of the heat dissipation fan 100, thereby fixing the air inlet end 102 of the heat dissipation fan 100 by cooperating with the accommodating groove 12.

[0053] See also Figures 6 - 8 As shown, a notch 24 is provided on the side of the shell 20 facing the notch of the accommodating groove 12 or the side facing the air inlet end 102 of the cooling fan 100, and the supporting portion 22 has an elastic arm and a protrusion, one end of the elastic arm is connected to the notch 24, and the protrusion is provided at the other end of the elastic arm and protrudes toward the inner side of the shell 20, wherein the inner side of the shell 20 is the side of the shell 20 facing the heat dissipation base 10.

[0054] like Figure 8 As shown, the supporting portion 22 is formed on the shell 20 in two structural forms, that is, the structural forms of the elastic arm and the protrusion are different on the two supporting portions 22. For the convenience of distinction, the elastic arm and the protrusion on the supporting portion 22 of the first structural form are respectively defined as the first elastic arm 221 and the first protrusion 222, and the elastic arm and the protrusion on the supporting portion 22 of the second structural form are respectively defined as the second elastic arm 223 and the second protrusion 224.

[0055] See also Figure 8 As shown, the first elastic arm 221 is arranged inside the notch 24, the first protrusion 222 is a block-shaped protrusion arranged at the other end of the first elastic arm 221, the second elastic arm 223 is arranged at an angle and extends obliquely toward the inner side of the shell 20, and the second protrusion 224 is two protruding contact portions arranged at the other end of the second elastic arm 223.

[0056] Of course, in other embodiments, the structure of the abutting portion 22 may also be in the form of a combination of the first elastic arm 221 and the second protruding portion 224, or may be in the form of a combination of the second elastic arm 223 and the first protruding portion 222. The specific structural form of the abutting portion 22 is not limited herein.

[0057] After the housing 20 is buckled on the heat dissipation base 10, for the convenience of disassembly and assembly of the heat dissipation fan 100, the housing 20 and the heat dissipation base 10 are detachably connected. As Figure 2 、 Figure 3 、 Figure 6 and Figure 7 shown, a buckling position 25 is provided on the housing 20, and a buckle 14 is provided on the heat dissipation base 10. The housing 20 buckled on the heat dissipation base 10 and the heat dissipation base 10 can be connected by snapping the buckle 14 into the buckling position 25.

[0058] This application also provides a servo driver, which includes the fixed structure of the servo driver heat dissipation fan in the above embodiments, and further includes a heat dissipation fan 100. Among them, part of the heat dissipation fan 100 is accommodated in the accommodation groove 12. The housing 20 is buckled on the heat dissipation base 10, so that the abutting portion 22 can abut against the top 101 of the heat dissipation fan 100, so that the accommodation groove 12 and the abutting portion 22 together constitute the fixed structure of the heat dissipation fan 100.

[0059] The servo driver provided in this embodiment further includes a bottom case 30, a side frame 40, and a servo drive unit 50. Among them, the heat dissipation fan 100 is installed in the accommodation groove 12, the bottom case 30 is installed at the bottom of the heat dissipation base 10, the housing 20 is installed at the top of the heat dissipation base 10, the side frame 40 is connected to one side of the heat dissipation base 10, and connects the housing 20 and the bottom case 30. The housing 20, the bottom case 30, and the side frame 40 enclose an installation space, and the servo drive unit 50 is arranged in this installation space.

[0060] In summary, in the servo driver and the fixed structure of the servo driver heat dissipation fan provided in this application, the accommodation groove and the abutting portion together constitute the fixed structure of the heat dissipation fan. Only by installing part of the heat dissipation fan in the accommodation groove and buckling the housing on the heat dissipation base, the heat dissipation fan can be fixed under the action of the accommodation groove and the abutting portion. When the heat dissipation fan needs to be removed, the heat dissipation fan can be easily removed by removing the housing and then pulling the heat dissipation fan out of the accommodation groove. The operation is convenient and simple, and the structural design is simple. Only a slight improvement is needed for the existing heat dissipation base and housing, without designing other installation structural parts, the cost is lower, the heat dissipation fan can be directly fixed, the components of the heat dissipation fan fixed structure and the occupied space of the heat dissipation fan installation structure are reduced, the requirement for the size of the installation space can be reduced, the use of materials is saved, and thus the material cost is saved, thereby reducing the production and use cost of the product.

[0061] The above uses specific examples to elaborate on the present utility model, which is only used to help understand the present utility model and is not intended to limit the present utility model. For those skilled in the technical field to which the present utility model pertains, based on the idea of the present utility model, several simple deductions, deformations or substitutions can also be made.

Claims

1. A fixing structure for a servo drive cooling fan, characterized in that: include: A heat dissipation base, wherein a radiator is provided on the heat dissipation base, and a receiving groove is further provided on the heat dissipation base, wherein the receiving groove is used to accommodate part of the heat dissipation fan and the air outlet end of the heat dissipation fan is directed toward the radiator; The shell is buckled on the heat dissipation base, and an air inlet hole is provided on the side of the shell facing the air inlet end of the heat dissipation fan; the shell is provided with a supporting portion on at least one side facing the notch of the accommodating groove to support the top of the heat dissipation fan.

2. The fixing structure of the servo drive cooling fan according to claim 1, characterized in that: The inner side wall of the accommodating groove is further provided with at least one first blocking portion, and the first blocking portion is used to abut against the side of the heat dissipation fan.

3. The fixing structure of the servo driver cooling fan according to claim 1, characterized in that, The side wall of the accommodating groove located at one side of the air outlet end of the heat dissipation fan is further provided with at least one second blocking portion, and the second blocking portion is used to block the air outlet end of the heat dissipation fan.

4. The fixing structure of the servo drive cooling fan according to claim 1, characterized in that, At least one third blocking portion is further provided on a side wall of the accommodating groove facing the air inlet end of the heat dissipation fan, and the third blocking portion is used to block the air inlet end of the heat dissipation fan.

5. The fixing structure of the servo driver cooling fan according to claim 1, characterized in that, The supporting portion is further provided on one side of the shell facing the air inlet end of the heat dissipation fan to resist the air inlet end of the heat dissipation fan.

6. The fixing structure of the servo driver cooling fan as described in claim 5, characterized in that, The shell is provided with a notch on one side of the notch facing the accommodating groove or on the side facing the air inlet end of the cooling fan, and the supporting portion has an elastic arm and a protruding portion, one end of the elastic arm is connected to the notch, and the protruding portion is provided at the other end of the elastic arm and protrudes toward the inner side of the shell.

7. The fixing structure of the servo drive cooling fan according to claim 6, characterized in that: The elastic arm is arranged inside the notch, or the elastic arm is arranged obliquely and extends obliquely toward the inner side of the shell.

8. The fixed structure of the servo drive cooling fan according to claim 7, characterized in that, The protrusion is a block-shaped protrusion provided at the other end of the elastic arm, or the protrusion is two protruding contact portions provided at the other end of the elastic arm.

9. The fixing structure of the servo drive cooling fan according to claim 1, wherein: The shell is detachably connected to the heat dissipation base.

10. A servo driver, characterized in that, It comprises the fixing structure of the servo drive cooling fan according to any one of claims 1 to 9, and also comprises a cooling fan, wherein part of the cooling fan is accommodated in the accommodating groove.

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