Vacuum motor heat conductorTechnical Field
The invention relates to the technical field of motor heat dissipation, in particular to a vacuum motor heat conductor.
Background
The heat transfer is mainly divided into three modes of heat conduction, heat convection and heat radiation, and the motor can only conduct heat transfer by heat conduction and heat radiation under the vacuum condition due to no gas convection. If heat generated by the motor in the operation process of the vacuum environment cannot be timely dissipated, the temperature of the motor can be rapidly increased, the service life and stability of the motor are affected, and meanwhile, the position stability and the precision of other structures are affected. The temperature of the motor itself must be controlled within a certain temperature range, otherwise, the motor cannot work normally and even causes faults, so that heat generated in the running process of the motor needs to be dissipated timely.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the vacuum motor heat conductor, which realizes heat conduction between opposite operation parts by utilizing the high heat conduction performance of the copper braided wire, meets the conduction and release of heat generated in the operation process of the motor in a vacuum environment, realizes the working requirement of heat dissipation of the motor in the vacuum environment, and has higher engineering application value.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a vacuum motor heat conductor, includes heat conductor seat, braided wire and heat dissipation hoof, the heat conductor seat is installed on the motor body, the one end of braided wire is connected with the heat conductor seat through first mounting, and the other end passes through the second mounting and is connected with the heat dissipation hoof.
Further, the braided wires are arranged in a plurality, and each braided wire is arranged along the circumference of the heat conductor seat.
Further, the natural length of the braided wire is greater than the distance between the heat dissipation shoe and the heat conductor seat.
Further, the braided wire is made of copper.
Further, the heat dissipation shoe comprises a ball head shaft, a half gland and an elastic piece, wherein the ball head shaft, the half gland and the heat dissipation shoe form a ball hinge pair, the heat dissipation shoe swings freely relative to the ball head shaft, one end of the elastic piece is connected with the motor body, the other end of the elastic piece is connected with the ball head shaft, one end of the ball head shaft mounting elastic piece is inserted into a shaft hole of a heat conducting device seat matched with the ball head shaft, and the ball head shaft slides in the shaft hole of the heat conducting device seat.
Further, one end of the ball head shaft is provided with a groove, and the elastic piece is located in the groove.
Further, the elastic piece is a spring.
Further, the vacuum motor heat conductor is positioned in the vacuum cavity shell, and under the action of the elastic piece and the ball head shaft, the heat dissipation shoe is contacted with the vacuum cavity shell, and heat generated by the motor is transferred to the vacuum cavity shell.
The beneficial effects of the invention are as follows:
(1) All parts of the motor heat conductor are processed and manufactured by adopting materials with high heat conductivity, and heat conduction between opposite operation parts is realized by utilizing the high heat conductivity of the copper braided wire, so that the motor heat conductor meets the heat conduction and release generated in the motor operation process in a vacuum environment, realizes the working requirement of motor heat dissipation in the vacuum environment, and has higher engineering application value.
(2) The ball head shaft can axially slide along the shaft hole of the heat conductor seat under the action of the elastic piece, so that the length of the heat conductor can be automatically adjusted according to the distance between the motor body and the vacuum cavity shell.
(3) The ball joint pair is formed by the ball head shaft, the heat dissipation shoe and the half gland, so that the heat dissipation shoe can swing freely relative to the ball head shaft, the heat dissipation shoe is ensured to be in close contact with the vacuum cavity shell, and the heat conduction effect is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of A-A of the present invention;
in the figure: the heat conducting device comprises a heat conducting device seat, an elastic piece, a ball head shaft, a half gland, a knitting wire, a second fixing piece, a heat radiating foot, a vacuum cavity shell, a motor body and a first fixing piece, wherein the heat conducting foot is arranged on the heat conducting device seat, the elastic piece is arranged on the ball head shaft, the half gland is arranged on the ball head shaft, the knitting wire is arranged on the ball head shaft, the second fixing piece is arranged on the knitting wire, the heat conducting foot is arranged on the heat conducting foot, the vacuum cavity shell is arranged on the vacuum cavity shell, and the motor body is arranged on the motor body.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without making creative efforts should fall within the scope of protection of the present application.
Embodiment one:
as shown in fig. 1 and 2, a vacuum motor heat conductor comprises a heat conductor seat 1, a braided wire 5 and a heat dissipation shoe 7, wherein the heat conductor seat 1 is arranged on a motor body 9, one end of the braided wire 5 is connected with the heat conductor seat 1 through a first fixing piece 10, the other end of the braided wire is connected with the heat dissipation shoe 7 through a second fixing piece 6, the first fixing piece 10 and the second fixing piece 6 are hoops, the braided wire 5 is provided with a plurality of braided wires, the number of the braided wires 5 in the embodiment can be more than eight, each braided wire 5 is distributed along the circumference of the heat conductor seat 1, the natural length of the braided wire 5 is larger than the distance between the heat dissipation shoe 7 and the heat conductor seat 1, the braided wire 5 is free from tensile force when the distance between the heat dissipation shoe 7 and the heat conductor seat 1 is the largest, the braided wire 5 is made of copper, the copper braided wire has high heat conductivity and good flexibility.
All parts of the heat conductor are made of materials with high heat conductivity, during operation, the motor generates heat due to working current, the heat generated by the motor is conducted to the heat conductor seat 1 through the contact surface, the heat of the heat conductor seat 1 is conducted to the heat dissipation shoe 7 through the plurality of copper braided wires 5, the heat dissipation shoe 7 conducts the heat to the vacuum cavity shell 8 in close contact with the heat dissipation shoe, and the heat is diffused to the outside air environment through the outer surface of the vacuum cavity shell 8.
Embodiment two:
the components and connection relation of this embodiment are not described in detail in the same place as the first embodiment, and the difference is that the device further comprises a ball head shaft 3, a half gland 4 and an elastic piece 2, the ball head shaft 3, the half gland 4 and the heat dissipation shoe 7 form a ball hinge pair, the heat dissipation shoe 7 swings freely relative to the ball head shaft 3, the vacuum motor heat conductor is located in the vacuum cavity shell 8, under the action of the elastic piece 2 and the ball head shaft 3, the heat dissipation shoe 7 contacts with the vacuum cavity shell 8 to transfer heat generated by a motor to the vacuum cavity shell 8, one end of the elastic piece 2 is connected with a motor body 9, the other end of the elastic piece is connected with the ball head shaft 3, one end of the ball head shaft 3 is provided with a groove, the elastic piece 2 is located in the groove, the elastic piece 2 is a spring, one end of the ball head shaft 3 is installed in a shaft hole of a heat conductor seat 1 matched with the elastic piece, the ball head shaft 3 slides in the shaft hole of the heat conductor seat 1, the ball head shaft 3 and the heat conductor seat 1 can slide in the shaft hole of the heat conductor seat 1, under the action of the elastic piece 2, the heat conductor and the heat conductor seat 1 can slide along a certain axial direction along the motor body, and the vacuum cavity shell 8 can automatically adjust the length between the heat conductor and the vacuum cavity shell 8 according to the automatic length.
In the working process, the heat conductor is arranged on the motor body 9 through the heat conductor seat 1, after the heat conductor seat is firmly arranged, the vacuum cavity shell 8 is arranged, the ball head shaft 3 moves relative to the heat conductor seat 1 in the axial direction because the distance between the vacuum cavity shell 8 and the motor body 9 is smaller than the maximum length of the heat conductor, the spring is compressed, the heat dissipation shoe 7 is tightly contacted with the vacuum cavity shell 8 under the action of spring elastic force, and the copper braided wire has good flexibility to generate bending as shown in figure 1.
The heat generated in the operation process of the motor is conducted to the heat conductor seat 1 closely contacted with the motor, most of the heat is transferred to the heat radiation shoe 7 by the heat conductor seat 1 through the copper braided wires closely contacted with the heat conductor seat, the heat radiation shoe 7 conducts the heat to the vacuum cavity shell 8 closely contacted with the heat radiation shoe, the vacuum cavity shell 8 has a large heat radiation area, and meanwhile, the outer surface of the vacuum cavity shell is exposed to the atmosphere, so that the conducted heat can be released rapidly, and the purpose of heat radiation of the motor in a vacuum environment is achieved.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.