Alternating current servo driver heat pipe heat dissipation device

Abstract

The utility model belongs to the technical field of AC servo drivers, and particularly relates to an AC servo driver heat pipe radiating device, which comprises a bottom plate, and a fan frame is arranged on the upper surface of the bottom plate. The screw rod penetrates through the lug plate and is in threaded connection with the mounting hole, so that the driver body is connected with the upper vapor chamber, when the driver body works and emits heat, heat is conducted through the heat pipes internally provided with ethyl alcohol, the upper vapor chamber and the lower vapor chamber connect the multiple heat pipes into a whole plane, and the whole plane is made of copper and has good heat conductivity; the heat generated by the driver body can be conveniently transferred to the heat pipe, the lower groove and the upper groove can be attached to the surface of the heat pipe, heat conduction is facilitated, the contact area between the heat pipe and air is increased through the multiple cooling fins, heat is rapidly dissipated, meanwhile, the cooling fan is started, the flowability of air between the adjacent cooling fins is accelerated, heat accumulation is reduced, and the service life of the driver body is prolonged. The temperature of the driver body is ensured to be within an allowable working range, and the service life of the driver body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of AC servo drivers, in particular to a heat pipe heat dissipation device for an AC servo driver. Background Art

[0002] With the continuous development of power electronics technology, computer technology and AC motor control technology, higher requirements are put forward for AC servo drive technology: reducing the size of AC servo drive and increasing the output power of AC servo drive. In addition, power electronic devices generate a lot of heat during operation, which requires timely heat dissipation to ensure that the temperature inside the AC servo drive cavity is within the allowable working range of the device.

[0003] Some existing AC servo drive heat dissipation solutions mostly adopt the method of opening heat dissipation holes and using natural air cooling technology, which easily leads to heat accumulation and makes it difficult to ensure that the drive temperature is within the allowable working range of the device, thus reducing the service life of the drive. Therefore, a heat pipe heat dissipation device for an AC servo drive is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a heat pipe heat dissipation device for an AC servo driver to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a heat pipe cooling device for an AC servo drive, comprising a base plate, a fan frame is provided on the upper surface of the base plate, a pair of cooling fans are installed on the inner wall of the fan frame, a lower heat spreader is provided on the upper surface of the fan frame, evenly distributed lower grooves are opened on the upper surface of the lower heat spreader, an upper heat spreader is welded to the upper surface of the lower heat spreader, evenly distributed upper grooves are opened on the lower surface of the upper heat spreader, a drive body is provided on the upper side of the upper heat spreader, a heat pipe is fixedly connected between the inner side wall of the lower groove and the inner side wall of the upper groove, and evenly distributed cooling fins are fixedly connected to the outer side wall of the heat pipe.

[0006] As a further preferred embodiment of the present technical solution: the lower surface of the driver body is fixedly connected to evenly distributed ear plates, the inner side walls of the upper heat spreader and the lower heat spreader are provided with evenly distributed mounting holes, and the inner side walls of the mounting holes are threadedly connected with screws.

[0007] As a further preferred embodiment of the present technical solution: the outer side wall of the fan frame is fixedly connected with evenly distributed connecting pieces.

[0008] As a further preferred embodiment of the present technical solution: the upper surface of the bottom plate is provided with evenly distributed connection holes.

[0009] As a further preferred embodiment of the present technical solution: the cross-sections of the lower groove and the upper groove are both semicircular, and the lower groove is matched with the upper groove.

[0010] As a further preferred embodiment of the technical solution: thermal conductive glue is coated between the lower surface of the driver body and the upper surface of the upper heat spreader.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] When the utility model is used, the screw is passed through the ear plate and threadedly connected to the mounting hole, so that the driver body is connected to the upper heat spreader. When the driver body is working and generates heat, the heat is conducted through the heat pipe with ethanol inside. The upper heat spreader and the lower heat spreader connect multiple heat pipes into an integral plane, and both are made of copper, which has good thermal conductivity, and is convenient for transferring the heat generated by the driver body to the heat pipe. The lower groove and the upper groove can fit the surface of the heat pipe, which is convenient for heat conduction. The contact area between the heat pipe and the air is increased through multiple heat dissipation fins, and the heat is quickly dissipated. At the same time, the heat dissipation fan is started to accelerate the fluidity of the air between adjacent heat dissipation fins, reduce heat accumulation, ensure that the temperature of the driver body is within the allowable working range, and increase the service life of the driver body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the heat pipe, heat dissipation fins and thermal conductive adhesive in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the wind machine frame, the cooling fan and the connecting piece of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the upper heat spreader, the lower heat spreader and the mounting holes in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the middle ear plate and the screw rod of the utility model.

[0018] In the figure: 1. bottom plate; 2. fan frame; 3. cooling fan; 4. lower heat spreader; 5. lower groove; 6. upper heat spreader; 7. upper groove; 8. driver body; 9. heat pipe; 10. cooling fin; 11. ear plate; 12. mounting hole; 13. screw; 14. connecting piece; 15. connecting hole; 16. thermal conductive adhesive. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] See also Figure 1-5 The utility model provides a technical solution: a heat pipe heat dissipation device for an AC servo driver, comprising a bottom plate 1, a fan frame 2 is provided on the upper surface of the bottom plate 1, a pair of heat dissipation fans 3 are installed on the inner side wall of the fan frame 2, a lower heat spreader 4 is provided on the upper surface of the fan frame 2, lower heat spreader 4 is provided with evenly distributed lower grooves 5 on the upper surface, an upper heat spreader 6 is welded on the upper surface of the lower heat spreader 4, upper heat spreader 6 is provided with evenly distributed upper grooves 7 on the lower surface, a driver body 8 is provided on the upper side of the upper heat spreader 6, a heat pipe 9 is fixedly connected between the inner side wall of the lower groove 5 and the inner side wall of the upper groove 7, and evenly distributed heat dissipation fins 10 are fixedly connected to the outer side wall of the heat pipe 9; When in use, the driver body 8 is installed on the upper heat spreader 6. When the driver body 8 generates heat during operation, the heat is conducted through the heat pipe 9 with ethanol inside. The upper heat spreader 6 and the lower heat spreader 4 connect multiple heat pipes 9 into an integral plane, and they are all made of copper, which has good thermal conductivity, so it is convenient to transfer the heat generated by the driver body 8 to the heat pipe 9. The contact area between the heat pipe 9 and the air is increased through multiple heat dissipation fins 10, and the heat is quickly dissipated. At the same time, the heat dissipation fan 3 is started to accelerate the flow of air between adjacent heat dissipation fins 10, reduce heat accumulation, ensure that the temperature of the driver body 8 is within the allowable working range, and improve the service life of the driver body 8.

[0022] In the present embodiment, specifically: the lower surface of the driver body 8 is fixedly connected to the evenly distributed ear plates 11, the inner walls of the upper heat spreader 6 and the lower heat spreader 4 are provided with evenly distributed mounting holes 12, the inner walls of the mounting holes 12 are threadedly connected with screws 13; the screws 13 are passed through the ear plates 11 and threadedly connected to the mounting holes 12, so that the driver body 8 is connected to the upper heat spreader 6.

[0023] In this embodiment, specifically: the outer side wall of the fan frame 2 is fixedly connected with evenly distributed connecting pieces 14; the connecting pieces 14 facilitate the user to connect the fan frame 2 with the lower heat spreader 4 and the bottom plate 1 into a whole by bolts.

[0024] In this embodiment, specifically: evenly distributed connection holes 15 are opened on the upper surface of the bottom plate 1 ; the connection holes 15 facilitate the connection between the bottom plate 1 and the fan frame 2 .

[0025] In this embodiment, specifically: the cross-sections of the lower groove 5 and the upper groove 7 are both semicircular, and the lower groove 5 and the upper groove 7 are matched with each other; the lower groove 5 and the upper groove 7 can fit the surface of the heat pipe 9 to facilitate heat conduction.

[0026] In this embodiment, specifically: a thermal conductive adhesive 16 is coated between the lower surface of the driver body 8 and the upper surface of the upper heat spreader 6 ; the thermal conductive adhesive 16 further improves the connectivity and thermal conductivity between the driver body 8 and the upper heat spreader 6 .

[0027] The working principle of the utility model is as follows: when in use, the screw 13 is passed through the ear plate 11 and threadedly connected with the mounting hole 12 to connect the driver body 8 with the upper heat spreader 6. When the driver body 8 generates heat during operation, the heat is conducted through the heat pipe 9 with ethanol inside. The upper heat spreader 6 and the lower heat spreader 4 connect multiple heat pipes 9 into an integral plane, and are all made of copper with good thermal conductivity, which is convenient for transferring the heat generated by the driver body 8 to the heat pipe 9. The lower groove 5 and the upper groove 7 can fit the surface of the heat pipe 9 to facilitate heat conduction. The contact area between the heat pipe 9 and the air is increased through multiple heat dissipation fins 10 to quickly dissipate heat. At the same time, the heat dissipation fan 3 is started to accelerate the fluidity of the air between adjacent heat dissipation fins 10, reduce heat accumulation, ensure that the temperature of the driver body 8 is within the allowable working range, and increase the service life of the driver body 8.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AC servo drive heat pipe cooling device, comprising a base plate (1), characterized in that: A fan frame (2) is provided on the upper surface of the base plate (1), a pair of cooling fans (3) are installed on the inner side wall of the fan frame (2), a lower heat spreader (4) is provided on the upper surface of the fan frame (2), evenly distributed lower grooves (5) are provided on the upper surface of the lower heat spreader (4), an upper heat spreader (6) is welded to the upper surface of the lower heat spreader (4), evenly distributed upper grooves (7) are provided on the lower surface of the upper heat spreader (6), a driver body (8) is provided on the upper side of the upper heat spreader (6), a heat pipe (9) is fixedly connected between the inner side wall of the lower groove (5) and the inner side wall of the upper groove (7), and evenly distributed cooling fins (10) are fixedly connected to the outer side wall of the heat pipe (9).

2. The heat pipe cooling device for an AC servo driver according to claim 1, characterized in that: The lower surface of the driver body (8) is fixedly connected to evenly distributed ear plates (11), and the inner side walls of the upper heat spreader (6) and the lower heat spreader (4) are provided with evenly distributed mounting holes (12), and the inner side walls of the mounting holes (12) are threadedly connected to screws (13).

3. The heat pipe cooling device for an AC servo driver according to claim 1, characterized in that: The outer side wall of the fan frame (2) is fixedly connected with evenly distributed connecting pieces (14).

4. The heat pipe heat dissipation device for an AC servo driver according to claim 1, characterized in that: The upper surface of the bottom plate (1) is provided with evenly distributed connection holes (15).

5. The heat pipe cooling device for an AC servo driver according to claim 1, characterized in that: The cross-sections of the lower groove (5) and the upper groove (7) are both semicircular, and the lower groove (5) and the upper groove (7) are arranged to match each other.

6. The heat pipe cooling device for an AC servo driver according to claim 1, characterized in that: A heat-conducting adhesive (16) is coated between the lower surface of the driver body (8) and the upper surface of the upper heat spreader (6).

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