CN107787160B - Water-cooling heat dissipation structure of motor controller - Google Patents
Water-cooling heat dissipation structure of motor controller Download PDFInfo
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- CN107787160B CN107787160B CN201610772908.3A CN201610772908A CN107787160B CN 107787160 B CN107787160 B CN 107787160B CN 201610772908 A CN201610772908 A CN 201610772908A CN 107787160 B CN107787160 B CN 107787160B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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Abstract
The invention discloses a water-cooling heat dissipation structure of a motor controller, which comprises: the heat dissipation plate comprises a heat dissipation plate main body and cover plates respectively fixed on two end faces of the heat dissipation plate main body. The heat dissipation plate main body is of a polygonal prism plate-shaped structure, the number of edges of the heat dissipation plate main body is at least 3, and the inner surface and the outer surface of the side wall of the heat dissipation plate main body can be used as power device installation areas of the motor controller. At least one cooling liquid flow channel is arranged in the side wall of the heat dissipation plate main body, and a cooling liquid inlet and a cooling liquid outlet which are communicated with the cooling liquid flow channel are arranged on the cover plate. The invention provides a plurality of radiating surfaces for mounting power devices, has compact structure, is beneficial to miniaturization and light weight of a radiating structure, and is internally provided with a cooling liquid flow passage which is fully contacted with a radiating surface. The invention can solve the technical problems that the existing water-cooling heat dissipation structure of the motor controller does not fully utilize the heat dissipation surface and has low heat dissipation efficiency.
Description
Technical Field
The invention relates to the technical field of heat dissipation, in particular to a water cooling heat dissipation structure applied to a polygonal-prism-shaped motor controller.
Background
With the rapid development of power electronic technology, motor controllers are widely used. Nowadays, the power density of the motor controller is continuously improved, and the problem of heat dissipation has become a major bottleneck in the development of miniaturization and light weight of the motor controller. The existing water-cooling heat dissipation method of the motor controller mostly adopts a flat plate type structure, and a common method is that a power device is installed on one surface of a heat sink, and the other surface of the heat sink is not fully utilized. Therefore, the heat dissipation efficiency of the conventional heat dissipation structure of the motor controller is low, which is not favorable for the miniaturization and light weight of the motor controller.
In the prior art, the following technical schemes are mainly related to the invention:
The prior art 2 is a motor controller with a heat dissipation structure, which is disclosed in china patent application No. CN105451521A, published in 2015, 12-month and 22-month, 2016 and 2016, and published in 2016, 03-month and 30-month, by new energy automobile research institute corporation, pubic. The invention discloses a heat dissipation structure, which is characterized in that one end of the heat dissipation structure is provided with a water inlet, the other end of the heat dissipation structure is provided with a water outlet, a heat dissipation water channel communicated with the water inlet and the water outlet is a straight channel, the heat dissipation structure is connected into a water cooling system of a vehicle, cooling water flows through the heat dissipation water channel and is fully contacted with the inner wall of the heat dissipation structure, the heat dissipation water channel is provided with an outer peripheral wall presenting a polygon shape, the outer peripheral wall is provided with more than two heat dissipation surfaces, an installation space is reserved between each heat dissipation surface and the inner wall of a corresponding shell, a capacitor is. Although the water-cooling heat dissipation mode is adopted, the structure is complex, heat dissipation cannot be provided for power devices to the maximum extent, and meanwhile, the temperature uniformity among heat dissipation water channels cannot be effectively guaranteed.
Disclosure of Invention
In view of this, the present invention provides a water-cooling heat dissipation structure for a motor controller, which solves the technical problem of low heat dissipation efficiency due to the insufficient utilization of heat dissipation surface in the water-cooling heat dissipation structure of the conventional motor controller.
In order to achieve the above object, the present invention specifically provides a technical implementation scheme of a water-cooling heat dissipation structure of a motor controller, and the water-cooling heat dissipation structure of the motor controller includes: the heat dissipation plate comprises a heat dissipation plate main body and cover plates fixed on two end faces of the heat dissipation plate main body respectively. The heat dissipation plate main body is of a polygonal prism plate-shaped structure, the number of edges of the heat dissipation plate main body is at least 3, and the inner surface and the outer surface of the side wall of the heat dissipation plate main body can serve as power device installation areas of the motor controller. The side wall of the heat dissipation plate main body is internally provided with at least one cooling liquid flow channel, and the cover plate is provided with a cooling liquid inlet and a cooling liquid outlet which are communicated with the cooling liquid flow channel.
Preferably, the cover plate comprises a left end cover plate and a right end cover plate, and the cooling liquid inlet and the cooling liquid outlet are arranged on the cover plate on the same end face or are respectively arranged on the cover plates on different end faces.
Preferably, the side wall of the heat dissipation plate main body is internally provided with more than two cooling liquid flow channels, the cross section of each cooling liquid flow channel is circular or polygonal, and the cooling liquid flow channels are communicated with two end faces of the heat dissipation plate main body.
Preferably, two or more of the coolant flow channels are connected in series or in parallel via a first communication groove.
Preferably, the first communication groove is disposed on the heat dissipation plate main body or on the cover plate.
Preferably, the power device of the motor controller comprises a capacitor and a power module, and the power module is mounted on the outer surface of the side wall of the heat dissipation plate main body. The capacitor is arranged in the heat dissipation plate main body, the inner surface of the side wall of the heat dissipation plate main body is tightly attached to the capacitor, and the wiring end of the capacitor extends out of the right end cover plate.
Preferably, the left end cover plate is fixed on the left end face of the heat dissipation plate main body, and a cooling liquid inlet and a cooling liquid outlet are formed in the left end cover plate. The right end cover plate is fixed on the right end face of the heat dissipation plate main body, and the wiring end of the capacitor extends out of the right end cover plate.
Preferably, the left end cover plate further comprises an interface part, a confluence part and a transition part which are sequentially distributed from left to right, the coolant inlet and the coolant outlet are arranged on the interface part, and the transition part is matched with the left end face of the heat dissipation plate main body.
Preferably, a mating surface of the confluence portion and the interface portion is an inlet surface, and a mating surface of the confluence portion and the transition portion is an outlet surface. And a water inlet channel is formed from the inlet surface to the outlet surface, the water inlet channel divides the inflowing cooling liquid into at least three cooling liquids and then flows out of the outlet surface, and the cooling liquid flows through the cooling liquid flow channel for circulation and backflow. And a water outlet channel is formed from the outlet surface to the inlet surface, and the water outlet channel converges the cooling liquid after circulation reflux corresponding to the flow splitting number of the water inlet channel and then flows out of the inlet surface. And the outlet surface is also provided with a second communicating groove which is used for communicating a cooling liquid flow passage connected with the second communicating groove.
Preferably, the transition part is provided with a second cooling liquid flow channel, the second cooling liquid flow channel corresponds to each cooling liquid flow channel of the heat dissipation plate main body one by one, and the water inlet channel and the water outlet channel are respectively communicated with the corresponding second cooling liquid flow channels.
Preferably, the interface part is provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid inlet is communicated with the water inlet channel, and the cooling liquid outlet is communicated with the water outlet channel.
Preferably, a first communication groove is formed in the matching surface of the right end cover plate and the heat dissipation plate main body and used for communicating with a cooling liquid flow passage connected with the first communication groove.
Preferably, when the water-cooling heat dissipation structure works, the cooling liquid flows in from the cooling liquid inlet, is divided by the water inlet channel, flows into the second cooling liquid flow channel corresponding to the transition part of the left end cover plate, and flows into the cooling liquid flow channel inside the side wall of the heat dissipation plate main body. Under the action of the first communication groove and the second communication groove, cooling liquid flows through the cooling liquid flow passages in sequence, and the capacitors tightly attached to the inner surface of the side wall of the heat dissipation plate main body and the power modules on the outer surface of the side wall of the heat dissipation plate main body are dissipated. And the cooling liquid is finally converged from the water outlet channel and flows out from the cooling liquid outlet.
Preferably, 18 cooling liquid flow channels are arranged inside the side wall of the heat dissipation plate main body, and the inlet channel divides the inflowing cooling liquid into three cooling liquid flows out of the outlet surface. The water outlet channel converges the three circulating cooling liquids and then flows out of the inlet surface.
Preferably, a cooling liquid inlet and a cooling liquid outlet are formed in the right end cover plate, a first communication groove is formed between two adjacent cooling liquid flow channels of the left end face and the right end face of the heat dissipation plate main body at intervals, and a first communication groove is formed between the cooling liquid flow channels in the side wall of the heat dissipation plate main body. When the water-cooling heat dissipation structure works, cooling liquid flows in from the cooling liquid inlet, sequentially flows through the cooling liquid flow channels, and finally flows out from the cooling liquid outlet.
Preferably, the heat dissipation plate main body adopts a triangular prism or hexagonal prism plate-shaped structure, and the power modules are mounted on three or six outer surfaces of the side wall of the heat dissipation plate main body.
Through the implementation of the technical scheme of the water-cooling heat dissipation structure of the motor controller provided by the invention, the water-cooling heat dissipation structure has the following beneficial effects:
(1) the water-cooling heat dissipation structure provides a plurality of smooth heat dissipation surfaces for mounting power devices, fully utilizes the heat dissipation surfaces, has a compact structure, and is beneficial to miniaturization and light weight of the heat dissipation structure;
(2) the cooling liquid flow channels are arranged in the water-cooling heat dissipation structure and are fully contacted with the heat dissipation surface, the cooling liquid flow channels can be conducted in series or in parallel, the series conduction operation is simple, the realization is easy, and the parallel conduction temperature uniformity is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other embodiments can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of a water-cooling heat dissipation structure of a motor controller according to embodiment 1 of the present invention;
fig. 2 is an exploded schematic view of a water-cooling heat dissipation structure of a motor controller according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of the heat sink main body of fig. 1;
FIG. 4 is a schematic cross-sectional view of the left end cover plate of FIG. 1;
FIG. 5 is a schematic cross-sectional view of the other side of the junction of the left end cover plate of FIG. 1;
FIG. 6 is a schematic cross-sectional view of the transition portion of the left end cover plate of FIG. 1;
FIG. 7 is a schematic cross-sectional view of the interface portion of the left end cover plate shown in FIG. 1;
FIG. 8 is a schematic cross-sectional view of the right end cover plate of FIG. 1;
FIG. 9 is a schematic side view of the right end cover plate of FIG. 1;
fig. 10 is a schematic structural view of a water-cooling heat dissipation structure of a motor controller according to embodiment 2 of the present invention;
fig. 11 is a schematic structural view of the heat sink main body of fig. 10;
FIG. 12 is a schematic view of the structure of FIG. 11 in the direction C;
FIG. 13 is a schematic view of the structure of FIG. 11 in the A direction;
FIG. 14 is a schematic cross-sectional view taken along line B-B of FIG. 11;
FIG. 15 is a schematic view of the construction of the right end cover plate of FIG. 10;
FIG. 16 is a schematic view of the structure of the left end cover plate of FIG. 10;
fig. 17 is a schematic structural view of a water-cooling heat dissipation structure of a motor controller according to embodiment 3 of the present invention;
in the figure: 1-a heat dissipation plate main body, 2-a left end cover plate, 3-a right end cover plate, 4-a capacitor, 5-a power module, 6-an edge, 11-a cooling liquid flow channel, 12-a mounting hole I, 13-a mounting hole II, 14-a mounting hole III, 15-a mounting hole IV, 16-a mounting hole V, 21-a confluence part, 22-a transition part, 23-an interface part, 31-a communication groove I, 32-a mounting hole VI, 33-a communication groove III, 211-a water inlet channel, 212-a water outlet channel, 213-a communication groove II, 214-a mounting hole VII, 221-a cooling liquid flow channel II, 222-a mounting hole eight, 231-a cooling liquid inlet, 232-a cooling liquid outlet and 233-a mounting hole nine.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 17, a water-cooling heat dissipation structure of a motor controller according to an embodiment of the present invention is shown, and the present invention will be further described with reference to the drawings and the embodiment.
Example 1
As shown in fig. 1, a specific embodiment of a water-cooling heat dissipation structure of a motor controller includes: a heat sink body 1, and cover plates fixed to both end surfaces of the heat sink body 1. The heat dissipation plate main body 1 is of a metal polygonal prism plate-shaped structure, the number of the edges 6 of the heat dissipation plate main body 1 is at least 3, and in the embodiment, the number of the edges 6 is 3. The inner surface and the outer surface of the side wall of the heat radiation plate main body 1 are smooth surfaces and can be used as a power device installation area of a motor controller. At least one cooling liquid channel 11 is provided inside the side wall of the heat radiating plate main body 1, and a cooling liquid inlet 231 and a cooling liquid outlet 232 communicated with the cooling liquid channel 11 are provided on the cover plate.
The cover plate further comprises a left end cover plate 2 and a right end cover plate 3, and the cooling liquid inlet 231 and the cooling liquid outlet 232 are arranged on the cover plate on the same end face or respectively arranged on the cover plates on different end faces. The left end cover plate 2 is fixed to the left end surface of the heat radiating plate body 1, and the left end cover plate 2 is provided with a coolant inlet 231 and a coolant outlet 232. The right end cover plate 3 is fixed on the right end face of the heat radiation plate main body 1, and the wiring end of the capacitor 4 extends out of the right end cover plate 3. The cross section of the coolant flow path 11 may be circular or any polygon, and the coolant flow path 11 communicates with both end surfaces of the heat radiating plate body 1. When two or more coolant flow passages 11 are provided in the side wall of the heat sink main body 1, the two or more coolant flow passages 11 are not directly connected to each other. However, two or more coolant flow channels 11 may be connected in series or in parallel via the first communication groove 31. The first communication groove 31 may be provided on the heat dissipation plate main body 1 or on the cover plate.
The power device of the motor controller includes power modules (IGBT modules, if applicable) 5 mounted on the outer surfaces of the three side walls of the heat sink main body 1, and capacitors 4 mounted inside the heat sink main body 1. The capacitor 4 is closely attached to the inner surface of the side wall of the heat radiating plate body 1, and the terminal of the capacitor 4 extends out of the right end cover plate 3.
As shown in fig. 2, the left end cover plate 2 is composed of three parts, including an interface part 23, a confluence part 21 and a transition part 22 which are distributed from left to right in sequence. The coolant inlet 231 and the coolant outlet 232 are provided in the connecting portion 23, and the transition portion 22 is fitted to the left end surface of the heat sink main body 1.
Fig. 3 is a schematic structural view of the heat sink main body 1. The heat dissipating plate body 1 has a triangular prism-shaped structure, the surface of the side wall thereof is smooth as a heat dissipating surface, and a plurality of coolant flow passages 11 are provided inside the side wall thereof. To facilitate the processing, the cross section of the coolant flow channel 11 is circular, and is directly connected between the two end faces of the heat dissipation plate main body 1, and is not connected with each other. The heat radiation plate main body 1 is provided with a plurality of screw mounting holes (a first mounting hole 12 and a second mounting hole 13) for fixing the left end cover plate 2 and the right end cover plate 3 and mounting the power module 5.
As shown in fig. 4 and 5, the structure of the bus bar 21 of the left end cover plate 2 is schematically illustrated. The mating surfaces of the confluence portions 21 and the connecting portions 23 are inlet surfaces, and the mating surfaces of the confluence portions 21 and the transition portions 22 are outlet surfaces. A water inlet channel 211 is formed from the inlet surface to the outlet surface, the water inlet channel 211 divides the inflowing coolant into three streams of coolant and then flows out of the outlet surface, and the coolant is circulated and refluxed through the coolant flow channel 11. A water outlet channel 212 is formed from the outlet surface to the inlet surface, and the three circulating and reflowing cooling liquids are converged by the water outlet channel 212 and then flow out of the inlet surface. The outlet surface is also provided with a second communication groove 213, and the second communication groove 213 is used for communicating the cooling liquid channel 11 connected with the second communication groove 213. The mounting hole seven 214 is used for fixing.
As shown in fig. 6, it is a schematic structural view of the transition portion 22 of the left end cover plate 2. The transition portion 22 is provided with a second cooling liquid channel 221 and an eighth mounting hole 222. The second cooling liquid flow channels 221 correspond to the respective cooling liquid flow channels 11 of the heat dissipation plate main body 1 one by one, and the water inlet channels 211 and the water outlet channels 212 are respectively communicated with the respective corresponding second cooling liquid flow channels 221. The transition portion 22 and the merging portion 21 cooperate with each other to form a flow passage for the coolant in a specific communicating relationship.
As shown in fig. 7, a schematic view of the interface portion 23 of the left end cover plate 2 is shown. The connecting portion 23 is provided with a coolant inlet 231 and a coolant outlet 232, and a mounting hole nine 233. Wherein, the cooling liquid inlet 231 is communicated with the water inlet channel 211, and the cooling liquid outlet 232 is communicated with the water outlet channel 212.
As shown in fig. 8 and 9, the right end cover plate 3 is schematically shown, and fig. 8 is a fitting surface between the right end cover plate 3 itself and the heat radiating plate body 1. A first communication groove 31 is provided on the mating surface of the right end cover plate 3 and the heat radiating plate main body 1, and functions to communicate with the coolant flow passage 11 connected to the first communication groove 31. And the mounting hole six 32 is used for fixing.
In this embodiment, 18 coolant flow channels 11 are further provided inside the side wall of the heat sink main body 1, and the inlet channel 211 divides the inflowing coolant into three streams and then flows out of the outlet surface. The outlet channel 212 collects the three streams of circulated coolant and then flows out of the inlet surface.
When the water-cooling heat dissipation structure works, the cooling liquid flows in from the cooling liquid inlet 231, is divided by the water inlet channel 211, then flows into the corresponding cooling liquid channel two 221 on the transition part 22 of the left end cover plate 2, and then flows into the cooling liquid channel 11 inside the side wall of the heat dissipation plate main body 1. Under the action of the first communication groove 31 and the second communication groove 213, the coolant flows through the coolant flow channels 11 in sequence, and radiates the capacitors 4 tightly attached to the inner surface of the side wall of the heat sink main body 1 and the power modules 5 on the outer surface of the side wall of the heat sink main body 1. The coolant finally converges from the outlet channel 212 and exits through the coolant outlet 232.
In the heat dissipation structure of the triangular prism-shaped motor controller described in embodiment 1, the inner and outer surfaces of the side wall of the heat dissipation plate main body 1 are both used for dissipating heat from power devices (including the capacitor 4 and the power module 5), and the heat dissipation structure is compact in structure and high in space utilization rate. Meanwhile, through the special flow channel structure arranged in the left end cover plate 2, the cooling liquid can be evenly divided into three strands and sequentially flows through each side wall of the heat dissipation plate main body 1, so that the heat dissipation structure is good in temperature uniformity.
Example 2
As shown in fig. 10, this embodiment describes another heat dissipation structure for a triangular prism-shaped motor controller. The power modules 5 are mounted on three outer surfaces of the side walls of the heat sink main body 1. The capacitor 4 is installed inside the heat radiation plate body 1, the surfaces of the two are attached to each other, and the terminal of the capacitor extends from the right end cover plate 2. The right end cover plate 2 is fixed to the right end surface of the heat radiating plate body 1, and is provided with a coolant inlet 231 and a coolant outlet 232 which are communicated with the coolant flow passage 11. The left end cover plate 3 is fixed to the left end surface of the heat radiating plate body 1.
Fig. 11 to 14 are schematic structural views of the heat sink main body 1 in this embodiment. The cooling liquid flow passages 11 are provided inside the side walls of the heat radiating plate main body 1, and the distribution structure of the cooling liquid flow passages 11 can be clearly seen from fig. 14. The two adjacent cooling liquid flow passages 11 on the left end surface of the heat dissipation plate main body 1 are provided with first communication grooves 31 at intervals, the two adjacent cooling liquid flow passages 11 on the right end surface of the heat dissipation plate main body 1 are provided with third communication grooves 33 at intervals, and the first communication grooves 31 and the third communication grooves 33 are arranged in a staggered mode. The coolant flow passages 11 in the side wall of the heat sink main body 1 are in a conductive relationship with each other by the first and third communication grooves 31, 33. As shown in fig. 15, which is a schematic structural diagram of the right end cover plate 3, the right end cover plate 3 is provided with a coolant inlet 231, a coolant outlet 232 and six mounting holes 32. As shown in fig. 16, which is a schematic structural diagram of the left end cover plate 2, the left end cover plate 2 is provided with a mounting hole nine 233 for fixing. The heat dissipation plate main body 1 is further provided with a plurality of screw mounting holes, the second mounting hole 13 is used for mounting the power module 5, the third mounting hole 14 is used for mounting the left end cover plate 2, the fourth mounting hole 15 is used for mounting the right end cover plate 3, and the fifth mounting hole 16 is used for fixing the whole heat dissipation structure.
When the water-cooling heat dissipation structure works, the cooling liquid flows in from the cooling liquid inlet 231, sequentially flows through the cooling liquid flow channels 11, and finally flows out from the cooling liquid outlet 232, so that the power module 5 arranged on the outer surface of the side wall of the heat dissipation plate main body 1 and the capacitor 4 on the inner surface of the side wall can be effectively dissipated.
Compared with the embodiment 1, all the cooling liquid flow channels 11 of the water-cooling heat dissipation structure of the motor controller adopt a series connection relationship, so that the structure is simpler, and the operation is more convenient.
Example 3
As shown in fig. 17, this embodiment describes a hexagonal prism-shaped heat dissipation structure of a motor controller, and power modules 5 are mounted on six outer surfaces of the side wall of the heat dissipation plate body 1. The present embodiment is suitable for the situation where six IGBT modules are used, and other specific structures are similar to those of embodiment 1, and are not described herein again.
By implementing the technical scheme of the water-cooling heat dissipation structure of the motor controller described in the specific embodiment of the invention, the following technical effects can be achieved:
(1) the water-cooling heat dissipation structure of the motor controller described in the specific embodiment of the invention provides a plurality of smooth heat dissipation surfaces for mounting power devices, fully utilizes the heat dissipation surfaces, has a compact structure, and is beneficial to miniaturization and light weight of the heat dissipation structure;
(2) the water-cooling heat dissipation structure of the motor controller described in the specific embodiment of the invention is internally provided with the cooling liquid flow channels which are fully contacted with the heat dissipation surface, the cooling liquid flow channels can be conducted in series or in parallel, the series conduction operation is simple and easy to realize, and the parallel conduction temperature uniformity is good.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (14)
1. The utility model provides a machine controller water-cooling heat radiation structure which characterized in that includes: the heat dissipation plate comprises a heat dissipation plate main body (1) and cover plates fixed on two end faces of the heat dissipation plate main body (1) respectively; the heat dissipation plate main body (1) is of a polygonal prism plate-shaped structure, the number of edges (6) of the heat dissipation plate main body (1) is at least 3, and the inner surface and the outer surface of the side wall of the heat dissipation plate main body (1) can be used as power device installation areas of the motor controller; at least one cooling liquid flow channel (11) is arranged inside the side wall of the heat dissipation plate main body (1), and a cooling liquid inlet (231) and a cooling liquid outlet (232) which are communicated with the cooling liquid flow channel (11) are arranged on the cover plate; the cover plates comprise a left end cover plate (2) and a right end cover plate (3), and the cooling liquid inlet (231) and the cooling liquid outlet (232) are arranged on the cover plate on the same end face or respectively arranged on the cover plates on different end faces; the left end cover plate (2) further comprises a connecting part (23), a converging part (21) and a transition part (22) which are sequentially distributed from left to right, the cooling liquid inlet (231) and the cooling liquid outlet (232) are arranged on the connecting part (23), and the transition part (22) is matched with the left end face of the heat dissipation plate main body (1); the matching surface of the confluence part (21) and the interface part (23) is an inlet surface, and the matching surface of the confluence part (21) and the transition part (22) is an outlet surface; a water inlet channel (211) is formed from the inlet surface to the outlet surface, the water inlet channel (211) divides the inflowing cooling liquid into at least three cooling liquid flows out of the outlet surface, and the cooling liquid flows through the cooling liquid flow channel (11) for circulation and backflow; a water outlet channel (212) is formed from the outlet surface to the inlet surface, and the water outlet channel (212) converges the circulating and reflowing cooling liquid corresponding to the number of the split streams of the water inlet channel (211) and then flows out of the inlet surface; and a second communication groove (213) is also arranged on the outlet surface, and the second communication groove (213) is used for communicating with the cooling liquid flow channel (11) connected with the second communication groove.
2. The water-cooling heat dissipation structure of the motor controller according to claim 1, wherein: the cooling plate is characterized in that more than two cooling liquid flow passages (11) are arranged inside the side wall of the cooling plate main body (1), the cross section of each cooling liquid flow passage (11) is circular or polygonal, and the cooling liquid flow passages (11) are communicated with two end faces of the cooling plate main body (1).
3. The water-cooling heat dissipation structure of the motor controller according to claim 2, wherein: the more than two cooling liquid flow channels (11) form a structure which is mutually communicated in series or in parallel through a first communication groove (31).
4. The water-cooling heat dissipation structure of the motor controller according to claim 3, wherein: the first communication groove (31) is arranged on the heat dissipation plate main body (1) or on the cover plate.
5. The water-cooling heat dissipation structure of a motor controller according to claim 1, 2, 3, or 4, wherein: the power device of the motor controller comprises a capacitor (4) and a power module (5), and the power module (5) is mounted on the outer surface of the side wall of the heat dissipation plate main body (1); the capacitor (4) is installed in the heat dissipation plate main body (1), the inner surface of the side wall of the heat dissipation plate main body (1) is tightly attached to the capacitor (4), and the wiring end of the capacitor (4) extends out of the right end cover plate (3).
6. The water-cooling heat dissipation structure of the motor controller according to claim 5, wherein: the left end cover plate (2) is fixed on the left end face of the heat dissipation plate main body (1), and a cooling liquid inlet (231) and a cooling liquid outlet (232) are formed in the left end cover plate (2); the right end cover plate (3) is fixed on the right end face of the heat dissipation plate main body (1), and a wiring end of the capacitor (4) extends out of the right end cover plate (3).
7. The water-cooling heat dissipation structure for a motor controller according to claim 1, 2, 3, 4, or 6, wherein: the transition part (22) is provided with a second cooling liquid flow channel (221), the second cooling liquid flow channel (221) corresponds to each cooling liquid flow channel (11) of the heat dissipation plate main body (1) in a one-to-one mode, and the water inlet channel (211) and the water outlet channel (212) are communicated with the corresponding second cooling liquid flow channels (221) respectively.
8. The water-cooling heat dissipation structure of the motor controller according to claim 7, wherein: the interface part (23) is provided with a cooling liquid inlet (231) and a cooling liquid outlet (232), the cooling liquid inlet (231) is communicated with the water inlet channel (211), and the cooling liquid outlet (232) is communicated with the water outlet channel (212).
9. The water-cooling heat dissipation structure of the motor controller according to claim 8, wherein: and a first communication groove (31) is formed in the matching surface of the right end cover plate (3) and the heat dissipation plate main body (1) and is used for communicating with a cooling liquid flow passage (11) connected with the first communication groove (31).
10. The water-cooling heat dissipation structure of the motor controller according to claim 9, wherein: when the water-cooling heat dissipation structure works, cooling liquid flows in from the cooling liquid inlet (231), is divided through the water inlet channel (211), then flows into the corresponding cooling liquid flow channel II (221) on the transition part (22) of the left end cover plate (2), and then flows into the cooling liquid flow channel (11) in the side wall of the heat dissipation plate main body (1); under the action of the first communication groove (31) and the second communication groove (213), cooling liquid flows through the cooling liquid flow passages (11) in sequence, and the capacitors (4) tightly attached to the inner surface of the side wall of the heat dissipation plate main body (1) and the power modules (5) on the outer surface of the side wall of the heat dissipation plate main body (1) are dissipated; the cooling liquid finally converges from the water outlet channel (212) and then flows out from the cooling liquid outlet (232).
11. The water-cooling heat dissipation structure for a motor controller according to claim 1, 2, 3, 4, 6, 8, 9, or 10, wherein: the side wall of the heat dissipation plate main body (1) is internally provided with 18 cooling liquid flow channels (11), and the water inlet channel (211) divides the inflowing cooling liquid into three cooling liquid flows out of the outlet surface; the water outlet channel (212) converges the three circulating cooling liquids and then flows out of the inlet surface.
12. The water-cooling heat dissipation structure for a motor controller according to claim 1, 2, 3, 4, 6, 8, 9, or 10, wherein: the heat dissipation plate main body (1) adopts a triangular prism or hexagonal prism plate-shaped structure, and the power modules (5) are installed on three or six outer surfaces of the side wall of the heat dissipation plate main body (1).
13. The utility model provides a machine controller water-cooling heat radiation structure which characterized in that includes: the heat dissipation plate comprises a heat dissipation plate main body (1) and cover plates fixed on two end faces of the heat dissipation plate main body (1) respectively; the heat dissipation plate main body (1) is of a polygonal prism plate-shaped structure, the number of edges (6) of the heat dissipation plate main body (1) is at least 3, and the inner surface and the outer surface of the side wall of the heat dissipation plate main body (1) can be used as power device installation areas of the motor controller; at least one cooling liquid flow channel (11) is arranged inside the side wall of the heat dissipation plate main body (1), and a cooling liquid inlet (231) and a cooling liquid outlet (232) which are communicated with the cooling liquid flow channel (11) are arranged on the cover plate; the cover plates comprise a left end cover plate (2) and a right end cover plate (3), and the cooling liquid inlet (231) and the cooling liquid outlet (232) are arranged on the cover plate on the same end face or respectively arranged on the cover plates on different end faces; a cooling liquid inlet (231) and a cooling liquid outlet (232) are formed in the right end cover plate (3), a first communication groove (31) is formed between two adjacent cooling liquid flow channels (11) on the left end face of the heat dissipation plate main body (1) at intervals, a third communication groove (33) is formed between two adjacent cooling liquid flow channels (11) on the right end face of the heat dissipation plate main body (1) at intervals, and the first communication groove (31) and the third communication groove (33) are arranged in a staggered mode; the cooling liquid flow passages (11) in the side wall of the heat dissipation plate main body (1) are communicated through the first communication groove (31) and the third communication groove (33); when the water-cooling heat dissipation structure works, cooling liquid flows in from the cooling liquid inlet (231), sequentially flows through the cooling liquid flow channels (11), and finally flows out from the cooling liquid outlet (232).
14. The water-cooling heat dissipation structure of a motor controller according to claim 13, wherein: the heat dissipation plate main body (1) adopts a triangular prism or hexagonal prism plate-shaped structure, and the power modules (5) are installed on three or six outer surfaces of the side wall of the heat dissipation plate main body (1).
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| CN108770315A (en) * | 2018-07-26 | 2018-11-06 | 深圳市安众电气有限公司 | A kind of water cooling power supply |
| CN109586511B (en) * | 2018-12-31 | 2024-03-19 | 卧龙电气驱动集团股份有限公司 | Liquid cooling permanent magnet motor with controller cooling function |
| CN109890169B (en) * | 2019-04-30 | 2020-08-14 | 合肥巨一动力***有限公司 | High-density integrated triangular double-sided circulating cooling controller |
| CN110267487A (en) * | 2019-05-29 | 2019-09-20 | 苏州汇川联合动力***有限公司 | Casing and driving device |
| CN110505790A (en) * | 2019-07-30 | 2019-11-26 | 合肥巨一动力***有限公司 | A kind of electric machine controller modular water air-cooled structure |
| BE1028433B1 (en) * | 2020-06-25 | 2022-01-31 | Phoenix Contact Gmbh & Co | Assembly with a heat sink core element forming a support structure |
| CN112654210A (en) * | 2020-11-24 | 2021-04-13 | 合肥巨一动力***有限公司 | Box type controller cooling structure |
| CN116056430A (en) * | 2023-03-06 | 2023-05-02 | 杭州飞仕得科技股份有限公司 | Motor controller assembly and motor equipment |
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