CN104167873B - Motor cooling plate - Google Patents

Abstract

The invention discloses a motor cooling plate which comprises a panel and folded edges, wherein a plurality of circular concave recesses are uniformly distributed on the inner sides of two long edges of the upper surface of the panel along the long edges, a plurality of geometric concave recesses are uniformly distributed on the panel between two rows of circular concave recesses in a staggered manner, folded edges are vertically connected downwards on two sides of the panel, a U-shaped groove is arranged in the middle of the folded edge and the long edge in parallel, a shell is arranged on the outer side of the panel, a cavity is formed between the shell and the panel, a plurality of medium through holes are formed in two ends of the shell, one surface of the shell, which is opposite to the panel, is a soft sealing layer, and a plurality of air bag columns are arranged between the soft sealing layer and the panel. The cooling plate can improve the heat exchange efficiency, and the cooling plate has small volume and is convenient to transport when not used at normal temperature.

Description

A motor cooling plate

technical field

The invention belongs to the technical field of heat dissipation components of power components, in particular to a motor cooling plate, which is used to improve the heat dissipation efficiency of the motor.

Background technique

An electric motor is a commonly used rotating electric machine that converts electrical energy into mechanical energy. Machine tools and water pumps need electric motors; electric locomotives and elevators need electric motors for traction. Electric fans, refrigerators, washing machines, and even various electric motor toys in family life are inseparable from electric motors. Electric motors have been used in all aspects of modern social life. During the use of the motor, due to the existence of various losses, the temperature continues to rise. For normal use, cooling is especially important. If it is not cooled well, it will affect the service life of the motor. If the heat dissipation capacity of the motor is poor, the temperature of the motor will be too high, which will affect the service life of the motor, cause problems such as crash, and even threaten the life safety of the operator in severe cases.

Traditional motors generally achieve heat dissipation by installing a cooling plate on the surface of the motor. A cavity is provided inside the cooling plate on the surface of the motor with a large amount of heat dissipation, and cooling fluid is circulated in the cavity to increase heat dissipation efficiency. The size of the cavity inside the existing cooling plate is generally fixed, and the heat dissipation can only be accelerated by accelerating the passage of the cooling liquid in the cavity. However, due to the limitation of the heat exchange speed between the cooling liquid and the cooling plate, the cooling liquid The flow still has certain limitations, so the cavity of the cooling plate can only be made larger to achieve better heat dissipation, and the large volume of the cooling plate will bring great difficulties in transportation and handling, and the motor is not always High power operation, so an oversized cooling plate is wasted most of the time.

Contents of the invention

The invention aims at the deficiencies of the prior art and provides a motor cooling plate which is convenient for transportation and the size of the cavity can be adjusted according to the temperature.

In order to solve the above-mentioned technical problems, the present invention is solved by the following technical solutions: a motor cooling plate, including a panel and a folded edge, and several There are several circular indentations, and several geometric indentations are evenly staggered on the panel between the two rows of circular indentations. Both sides of the panel are connected vertically downward with folded edges, and the folded edges A U-shaped groove is arranged in the center parallel to the long side on the side, and a casing is arranged on the outside of the panel, and the casing forms a cavity with the panel, and several medium through holes are arranged at both ends of the casing, and the casing and The opposite side of the panel is a soft sealing layer, and several airbag pillars are arranged against the panel between the soft sealing layer and the panel.

Preferably, the circular concave bottom is flat and diverges from the bottom to the opening. Fit the circular indentation with the motor, and set it in a divergent shape so that the heat of the motor can be quickly transferred to the panel, and quickly dissipate heat in the divergent circular indentation.

Preferably, the geometric concave shape is ellipse, water drop or rhombus.

Preferably, the size of the panel and the number of geometric indentations match the volume of the motor.

Preferably, the end of the panel is provided with a connection plate, and the connection plate is provided with a through hole for matching with the motor. A connecting plate is provided for installing and fixing the panel and the motor.

Preferably, the soft sealing layer is a rubber layer.

Preferably, the soft sealing layer is a nylon lining rubber layer.

Compared with the prior art, the present invention has the following beneficial effects: when the motor is working, the air supply device sends air into the gap between the panel and the motor to cool the body, and the axially flowing air is flowing During the process, because there are many geometric concaves on the inner wall of the panel, the air flow generates a certain degree of disturbance to form an irregular vortex area, and the turbulent flow or vortex of the cooling air will increase the residence time of the cooling air in the heat dissipation gap, and the panel and the shell form a The working medium such as cooling water is passed into the cavity through the medium through hole. The working medium flows in the cavity, and the panel dissipates heat to the working medium. When the temperature of the panel rises, the gas in the airbag column expands and lifts the soft seal. Layer, so that the volume of the cavity is increased to store more cooling liquid, so that the heat exchange between the cooling liquid and the panel is more sufficient, so that the heat exchange efficiency is improved, and the cooling plate is smaller when it is not used at room temperature Easy to transport.

Description of drawings

Fig. 1 is a perspective view of the structure of the present invention.

Fig. 2 is a structural schematic diagram of the panel.

Fig. 3 is a schematic diagram of installation of the present invention.

Fig. 4 is a half-sectional structural view of the present invention at room temperature.

Fig. 5 is a half-sectional structural view of the present invention at high temperature.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: Referring to FIGS. Several circular indentations 4 are evenly arranged along the long sides, and several geometric indentations 3 are evenly and staggeredly arranged on the panel 1 between the two rows of circular indentations 4. The two sides of the panel 1 A folded edge 5 is connected vertically downward on the side, and a U-shaped groove 2 is arranged in the center of the folded edge 5 parallel to the long side. A shell 8 is arranged on the outside of the panel 1, and the shell 8 is connected to the panel. 1 to form a cavity 9, the two ends of the housing 8 are provided with a number of medium through holes 10, the side of the housing 8 opposite to the panel 1 is a soft sealing layer 81, the soft sealing layer 81 and the panel Several airbag pillars 11 are arranged against each other. In this embodiment, the soft sealing layer 81 is a rubber layer or a nylon-lined rubber layer. The bottom of the circular concave 4 is flat and diverges from the bottom to the opening. The shape of the geometric indentation 3 is ellipse, water drop or rhombus. The size of the panel 1 and the number of geometric recesses 3 match the volume of the motor. The end of the panel 1 is provided with a connecting plate 6, and the connecting plate 6 is provided with a through hole 7 for matching with the motor.

The heat dissipation and cooling device is installed around the casing of the motor. When the motor is working, the air supply device sends air into the gap between the panel and the motor to cool the body. There are many geometric concaves 3 on the inner wall of the panel 1, and the air flow generates a certain degree of disturbance to form an irregular vortex area, and the turbulence or vortex of the cooling air will increase the residence time of the cooling air in the heat dissipation gap, the panel 1 and the shell 8 Working medium such as hydraulic oil or cooling water is passed into the formed cavity 9 through the medium through hole 10 , the working medium flows in the cavity 9 , and the shell 8 dissipates heat to the working medium. Since the working medium is always in a flowing state during the working process of the system, and the heat exchange effect is the best when the flow directions of the two cooling mediums are opposite, the heat dissipation performance of the motor will be greatly improved. When the temperature of the motor continues to rise, the gas in the airbag column 11 will be heated, so that the gas expands and the airbag column 11 elongates and lifts the soft sealing layer 81, so that the volume of the cavity 9 becomes larger, so that the heat exchange between the cooling liquid and the panel 1 It is more sufficient, so that the heat exchange efficiency is improved, and the air bag is not fully extended when the cooling plate is not used at normal temperature, and the volume is small and convenient for transportation.

Claims (7)

1. A motor cooling plate, comprising a panel (1) and a folded edge (5), characterized in that, on the inside of the two long sides of the upper surface of the panel (1), several Circular concaves (4), the panels (1) between the two rows of circular concaves (4) are evenly arranged in a staggered manner with several geometric concaves (3), the two sides of the panels (1) There is a folded edge (5) connected vertically downward on the side, and a U-shaped groove (2) is arranged in the center of the folded edge (5) parallel to the long side, and a shell (8) is arranged on the outer side of the panel (1) ), the shell (8) and the panel (1) form a cavity (9), the two ends of the shell (8) are provided with a number of medium through holes (10), the shell (8) and the panel (1) The opposite side is a soft sealing layer (81), and a number of airbag pillars (11) are arranged against each other between the soft sealing layer (81) and the panel (1). 2. A motor cooling plate according to claim 1, characterized in that: the bottom of the circular concave (4) is flat and diverges from the bottom to the opening. 3. A motor cooling plate according to claim 1, characterized in that, the shape of the geometric indentation (3) is ellipse, water drop or rhombus. 4. A motor cooling plate according to claim 1, characterized in that the size of the panel (1) and the number of geometric indentations (3) match the volume of the motor. 5. A motor cooling plate according to claim 1, characterized in that: the end of the panel (1) is provided with a connecting plate (6), and the connecting plate (6) is provided with a through holes (7). 6. A motor cooling plate according to claim 1, characterized in that: the soft sealing layer (81) is a rubber layer. 7. A motor cooling plate according to claim 1, characterized in that: the soft sealing layer (81) is a nylon-lined rubber layer.