CN210406013U

CN210406013U - Liquid cooling radiator for motor controller

Info

Publication number: CN210406013U
Application number: CN201920978649.9U
Authority: CN
Inventors: 周阳; 康国良; 杨大成; 徐光照; 丁晓帆; 姜耀伟
Original assignee: CRRC Zhuzhou Institute Co Ltd
Current assignee: CRRC Zhuzhou Institute Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-04-24
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a liquid cooling radiator for machine controller, cover the apron on the base plate including base plate and sealed, be provided with the import on the base plate and converge groove, export and converge groove and branch road channel, the both ends of branch road channel converge groove and export with the import respectively and converge the groove intercommunication, are provided with the fin in the branch road channel, the upside and the apron laminating of fin, downside and the laminating of branch road channel bottom, this fin includes the fin unit of a plurality of horizontal unsmooth settings, fin unit along the flow direction staggered arrangement of branch road channel. The utility model, through the staggered fin units and the branch channels, on one hand, improves the heat dissipation capacity and reduces the flow resistance, and on the other hand, each branch channel flows uniformly, thereby ensuring the uniform heat dissipation of the substrate; further, the utility model discloses an adopt conventional processing to accomplish, manufacturing cost is lower relatively, facilitate promotion.

Description

Liquid cooling radiator for motor controller

Technical Field

The utility model belongs to the technical field of the motor heat dissipation, specifically be a liquid cooling radiator for machine controller.

Background

In the field of new energy vehicles, batteries, motors and motor controllers are generally recognized as three major core technologies of electric vehicles, which are referred to as "three-electricity" technologies for short. One of the common goals of the development of "three-power" technology is the constant pursuit of higher power densities. To achieve higher power densities, the main approaches include: higher bus voltage, higher switching frequency, and higher heat dissipation capability, among other things.

At present, liquid cooling heat dissipation is the most widely applied heat dissipation mode of a motor controller in an electric automobile, namely, coolant flows through a heat radiator in the motor controller to take away heat. The heat dissipation capacity of the radiator is determined by the channel design of the radiator to a great extent, the channel of the existing radiator is generally processed by a machine tool and is limited by a processing mode, the channel of the radiator is mostly arranged in parallel long strips, and the heat dissipation capacity is weak. In order to further improve the heat dissipation capability, researchers have proposed irregular channel cross sections, micro-channeling and other approaches, and although good effects are obtained on the heat dissipation capability, the problem that the flow resistance of the coolant is too large is also existed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid cooling radiator for machine controller to solve above-mentioned problem.

In order to achieve the purpose, the utility model discloses a liquid cooling radiator for machine controller, cover in including base plate and sealed cover in apron on the base plate, be provided with import tank, export tank and the branch road channel of converging on the base plate, the both ends of branch road channel respectively with import tank and export tank intercommunication of converging, be provided with the fin in the branch road channel, the upside and the apron laminating of fin, the downside with laminating of branch road channel bottom, this fin include the fin unit of a plurality of horizontal unsmooth settings, the fin unit along the flow direction staggered arrangement of branch road channel.

Further, the fin unit includes a plurality of laterally arranged saw tooth units.

Furthermore, the sawtooth unit is in a rectangular tooth-shaped structure.

Furthermore, import converges groove and export and converges groove parallel arrangement, just branch road channel with import converges groove perpendicular setting.

Furthermore, the branch channels are distributed along the length direction of the inlet confluence groove.

Furthermore, transition grooves are formed in two ends of the branch channel, two ends of the fins are flush with two ends of the branch channel, and the number of the transition grooves is gradually reduced from the input end of the inlet confluence groove to the other end of the inlet confluence groove.

Furthermore, the cover plate covers the two sides of the base plate in a sealing mode, the branch channel is arranged on the two sides of the base plate, and the two ends of the branch channel are communicated with the inlet confluence groove and the outlet confluence groove.

Furthermore, a water nozzle communicated with the input end of the inlet converging groove and the output end of the outlet converging groove is further arranged on the substrate.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a staggered arrangement's fin unit and branch road channel to the coolant liquid can circuitous tortuous flow in the fin unit, has promoted the heat-sinking capability on the one hand, has also taken into account and reduced the flow resistance, and on the other hand, sets up the transition groove of different quantity through branch road channel both ends, thereby makes the velocity of flow of cooling liquid even in each branch road channel, thereby has guaranteed the even heat dissipation of base plate; further, the utility model discloses an adopt conventional processing to accomplish, manufacturing cost is lower relatively, facilitate promotion.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is an axial view of a liquid cooling radiator for a motor controller according to a first embodiment of the present invention;

fig. 2 is an exploded schematic view of a liquid cooling radiator for a motor controller according to an embodiment of the present invention;

fig. 3 is an axial view of a substrate according to an embodiment of the present invention;

fig. 4 is an axial view of a fin portion structure according to an embodiment of the present invention;

fig. 5 is an exploded schematic view of a liquid cooling radiator for a motor controller according to a second embodiment of the present invention;

fig. 6 is an enlarged schematic view at I of fig. 5.

1. A substrate; 11. an inlet manifold slot; 12. an outlet manifold slot; 13. a branch channel; 14. a transition groove; 15. a coolant inlet; 16. a coolant outlet;

2. a cover plate;

3. a water nozzle;

4. a fin; 41. a fin unit; 42. and a saw tooth unit.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The first embodiment is as follows:

as shown in fig. 1-4, the utility model discloses a liquid cooling radiator for motor controller, including base plate 1 and sealed apron 2 that covers on base plate 1, be provided with import confluence groove 11, export confluence groove 12 and branch road channel 13 on base plate 1, the material of base plate 1 can be but is not restricted to aluminum alloy or copper alloy, the shaping mode can be but not restricted to milling or casting shaping, and the material of apron 2 can be but is not restricted to aluminum alloy or copper alloy, the shaping mode can be but not restricted to milling or casting shaping. The both ends of branch road channel 13 converge groove 11 and export respectively and converge groove 12 intercommunication, and the import converges groove 11 and export and converges the one end of groove 12 and link to each other with coolant liquid import 15 and coolant liquid export 16 respectively again, be provided with fin 4 in the branch road channel 13, fin 4's upside and apron 2 laminating, the downside laminates with branch road channel 13 bottom, this fin 4 includes the fin unit 41 of a plurality of horizontal unsmooth settings, fin unit 41 is along branch road channel 13's flow direction staggered arrangement, thereby can flow the coolant liquid that flows through and flow the boundary layer and produce the disturbance, form complicated torrent, thereby heat transfer capacity has been strengthened. The material of the fin 4 may be, but is not limited to, an aluminum alloy or a copper alloy, and the molding method may be, but is not limited to, press molding.

In the present embodiment, the fin unit 41 includes a plurality of laterally disposed saw-tooth units 42.

In the present embodiment, the saw tooth unit 42 has a rectangular tooth structure in a shape of "pi".

In the present embodiment, the inlet bus duct 11 and the outlet bus duct 12 are arranged in parallel, and the branch channel 13 is arranged perpendicular to the inlet bus duct 11. And the branch channels 13 are six channels arranged along the length direction of the inlet confluence groove 11, and the parallel connection and conduction relationship is formed between the branch channels 13 through the inlet confluence groove 11 and the outlet confluence groove 12, so that the support of the cover plate 2 is ensured, the screw mounting position is provided, and the heat dissipation area is enlarged as much as possible.

In this embodiment, in order to achieve uniform flow of the cooling liquid flowing through each branch channel 13, transition grooves 14 are disposed at two ends of each branch channel 13, and two ends of each fin 4 are disposed at the same level as two ends of each branch channel 13, so that when the liquid flows into the outlet confluence groove 12 from the fins 4, the liquid is prevented by the protruding structures at two sides of the transition grooves 14, thereby reducing the flow rate, the number of the transition grooves 14 is gradually reduced from the input end of the inlet confluence groove 11 to the other end, that is, the transition grooves 14 close to the cooling liquid inlet 15 are dense, while the transition grooves 14 far away from the cooling liquid inlet 15 are sparse, or even not disposed, thereby avoiding the problem that the flow rate of the liquid in each branch channel 13 is reduced due to pressure loss in the branch channels 13 far away from the inlet confluence groove 11, and further causing the inconsistent flow rate of the.

In this embodiment, a water nozzle 3 communicating an input end of the inlet confluence groove 11 and an output end of the outlet confluence groove 12 is further disposed on the substrate 1, the water nozzle 3 is connected with the cooling liquid inlet 15 and the cooling liquid outlet 16, the fixing mode of the water nozzle can be, but is not limited to, welding, screw fastening or direct screw fastening, and the like. The water nozzle 3 may be made of, but not limited to, aluminum alloy or copper alloy, and the forming manner may be, but not limited to, turning or casting.

The specific manufacturing method of the liquid cooling radiator comprises the following steps:

1. blanking, namely, according to the technical scheme, selecting a copper plate or an aluminum plate to blank the base plate 1, the cover plate 2 and the fins 4 of the liquid cooling radiator, and selecting a copper ingot, an aluminum ingot or a stainless steel ingot to blank the water nozzle 3;

2. machining or casting the blanks according to a design scheme, namely milling a branch channel 13, an inlet confluence groove 11, an outlet confluence groove 12 and a transition groove 14, which are used for placing the fins 4, on the substrate 1 on a milling machine; punching a flat shape, a zigzag shape, a polygon shape, a wave shape and the like required by the blank of the fin 4 on a punch; processing a water outlet nozzle 3 on a lathe; wherein, under the condition of large batch, the base plate 1, the cover plate 2, the fins 4 and the water nozzle 3 can also be formed by casting;

3. welding and weld seam detection, namely welding the base plate 1, the fins 4 and the cover plate 2 into a whole by adopting a mode which can be but is not limited to vacuum brazing to form a radiator main plate, and detecting the weld seam quality of the radiator main plate;

4. carrying out finish machining such as milling, drilling, grinding and the like on the radiator main board according to a design scheme, and carrying out surface treatment on a formed structural member;

5. the water nozzle 3 is fixed, and the water nozzle 3 can be fixed on the radiator main board structure by adopting a welding mode (such as argon arc welding) or can be fastened on the radiator main board by adopting screws or directly fastened on the radiator main board through threads;

6. and (6) checking and cleaning.

Example two:

in this embodiment, as shown in fig. 5 to 6, the cover plates 2 are symmetrically covered on two sides of the substrate 1, the two sides of the substrate 1 are symmetrically provided with the branch channels 13, and two ends of each branch channel 13 are both communicated with the inlet confluence groove 11 and the outlet confluence groove 12, so that the upper and lower cover plates 2 can be provided with heating devices, and the space utilization rate of the liquid cooling heat sink is further improved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a liquid cooling radiator for machine controller, its characterized in that, cover including base plate (1) and sealed cover in apron (2) on base plate (1), be provided with import on base plate (1) and converge groove (11), export and converge groove (12) and branch road channel (13), the both ends of branch road channel (13) respectively with import converge groove (11) and export and converge groove (12) intercommunication, be provided with fin (4) in branch road channel (13), the upside and apron (2) laminating of fin (4), the downside with laminating of branch road channel (13) bottom, this fin (4) include a plurality of horizontal unsmooth fin units (41) that set up, fin unit (41) along the flow direction staggered arrangement of branch road channel (13).

2. The liquid-cooled heat sink for a motor controller of claim 1, wherein said fin unit (41) comprises a plurality of laterally disposed sawtooth units (42).

3. The liquid-cooled heat sink for a motor controller as recited in claim 2, wherein said saw tooth unit (42) is a rectangular tooth structure.

4. A liquid-cooled radiator for a motor controller according to any one of claims 1 to 3, characterised in that the inlet (11) and outlet (12) manifolds are arranged in parallel and the branch channels (13) are arranged perpendicular to the inlet manifold (11).

5. The liquid-cooled heat sink for a motor controller as claimed in claim 4, characterised in that the branch channels (13) are arranged in a plurality along the length of the inlet manifold slot (11).

6. The liquid-cooled radiator for a motor controller as claimed in claim 5, wherein transition grooves (14) are formed at both ends of the branch channel (13), both ends of the fin (4) are flush with both ends of the branch channel (13), and the number of the transition grooves (14) is gradually reduced from the input end of the inlet confluence groove (11) to the other end.

7. The liquid-cooled radiator for the motor controller according to claim 4, wherein the cover plate (2) is hermetically covered on two sides of the base plate (1), the branch channel (13) is arranged on two sides of the base plate (1), and two ends of the branch channel (13) are communicated with the inlet confluence groove (11) and the outlet confluence groove (12).

8. The liquid-cooled radiator for the motor controller as claimed in claim 4, wherein the base plate (1) is further provided with a water nozzle (3) communicating an input end of the inlet manifold slot (11) and an output end of the outlet manifold slot (12).