Motor shell with heat dissipation and waterproof functions

Abstract

The utility model relates to a motor housing with heat radiation and waterproof functions. The motor housing comprises a housing; the inner shell is arranged in the outer shell in a sleeved mode, and a cooling cavity filled with cooling liquid is formed between the outer wall of the inner shell and the inner wall of the outer shell; the outer wall of the inner shell extends outwards in the radial direction to be provided with the multiple heat dissipation fins, and the heat dissipation fins penetrate through the outer shell and extend to the exterior of the outer shell; the inner shell and the outer shell are used in cooperation to form the shell of a double-layer structure, the cooling cavity between the inner shell and the outer shell is filled with the cooling liquid, and therefore the cooling liquid and the cooling fins can be used in cooperation conveniently, the interior of the inner shell is rapidly cooled, and the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to motor housings with heat dissipation and waterproofing functions. Background Technology

[0002] Motors generate heat during operation. If this heat is not dissipated in time, the increased internal temperature will affect the magnetism of the internal magnets, thus impacting the motor's performance and lifespan. Furthermore, in humid or splashing environments, motors are susceptible to water intrusion and damage. Existing motor housings often fail to simultaneously provide adequate heat dissipation and waterproofing, making it difficult to maintain stable operation for extended periods.

[0003] In summary, how to meet the waterproof and heat dissipation requirements of motor housings has become an urgent problem for researchers in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to satisfy the waterproof and heat dissipation requirements of the motor housing;

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model is a motor housing with heat dissipation and waterproof function, comprising: an outer shell; an inner shell, which is fitted inside the outer shell, and a cooling cavity filled with coolant is formed between the outer wall of the inner shell and the inner wall of the outer shell; and heat dissipation fins, wherein a plurality of heat dissipation fins are provided radially outwardly on the outer wall of the inner shell, the heat dissipation fins passing through the outer shell and extending to the outside of the outer shell.

[0007] Furthermore, an installation groove is provided on the inner wall of the inner shell near the opening, and a metal heat-conducting plate is provided in the installation groove. A sealing groove is provided on the side of the metal heat-conducting plate away from the opening, and a sealing ring is installed in the sealing groove. The flange at the opening of the outer shell is connected to the metal heat-conducting plate by bolts, thereby connecting the outer shell and the inner shell.

[0008] Furthermore, the top two sides of the heat dissipation fins are rounded, and a through groove is provided on the peripheral wall of the outer shell for the heat dissipation fins to pass through, and the through groove is matched with the corresponding heat dissipation seal.

[0009] Furthermore, the top of the outer casing has a liquid outlet communicating with the cooling cavity, and a liquid outlet plug covering the liquid outlet; the bottom of the outer casing has a liquid inlet communicating with the cooling cavity, and a liquid inlet plug covering the liquid inlet.

[0010] Furthermore, a gap is left between the tail end face of the outer shell and the tail end face of the inner shell to form a tail heat dissipation cavity, which is connected to the cooling cavity.

[0011] Furthermore, both the tail end face of the outer shell and the tail end face of the inner shell are provided with wire lead-out holes, and the two wire lead-out holes are connected by a connecting sleeve.

[0012] The beneficial effects of this utility model are as follows: This utility model is a motor housing with heat dissipation and waterproof function. By setting an inner shell and an outer shell to work together, a double-layer structure is formed. Coolant is added to the cooling cavity between the inner shell and the outer shell, so that the coolant and heat dissipation fins can work together to quickly dissipate heat from the inside of the inner shell and improve the heat dissipation efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure where the outer shell and inner shell are fitted together.

[0015] Figure 2 This is a rear view after the outer shell and inner shell are fitted together.

[0016] Figure 3 It is an exploded view of the outer and inner shells together;

[0017] Figure 4 This is a diagram showing the fit between the inner shell and the sealing ring;

[0018] Figure 5 This is a schematic diagram of the structure at the tail of the outer shell;

[0019] Figure 6 It is a partial sectional view showing the fit between the outer shell and the rear of the inner shell. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] This embodiment features a motor housing with heat dissipation and waterproofing functions. See [link / reference] Figure 1 , Figure 1 This is a schematic diagram of the structure of the outer shell and inner shell fitting together. In the figure, a metal heat-conducting plate 12 is provided at one end of the opening of the inner shell 1 through the mounting groove 11. The metal heat-conducting plate 12 serves as a connecting flange. The metal heat-conducting plate 12 is connected to the flange 21 at the end of the outer shell 2 by bolts 3, fitting the outer shell 2 and the inner shell 1 together. When the outer shell 2 and the inner shell 1 are fitted together, a cooling cavity 4 is formed between them. The heat dissipation fins 5 pass through the outer shell 2 and are connected to the inner shell 1 through the through groove 22. The length of the heat dissipation fins 5 is less than the axial length of the outer shell 2, so that the heat dissipation fins 5 do not block the flow of coolant in the cooling cavity 4.

[0022] See Figure 2 , Figure 2 This is a rear view of the outer shell 2 and the inner shell 1 after they are fitted together. The tail end face of the outer shell 2 has a wire lead-out hole 23. The lead wires inside the motor pass through the wire lead-out hole 23 on the tail end face of the inner shell 1, the connecting sleeve 6, and the wire lead-out hole 23 on the tail end face of the outer shell 2 in sequence to connect with the external components.

[0023] See Figure 3 , Figure 3 The diagram shows the exploded view of the outer and inner shells. After the flange 21 is connected to the metal heat-conducting plate 12 by bolts 3, the flange 12 and the metal heat-conducting plate 12 are connected by the sealing groove and the sealing ring 7 to prevent the coolant in the cooling chamber from leaking.

[0024] See Figure 4 , Figure 4 This is a diagram showing the fit between the inner shell and the sealing ring. The sealing ring 7 fits into the sealing groove at the metal heat-conducting plate 12. By setting the sealing ring 7, the flange and the metal heat-conducting plate are sealed together, so that the coolant in the cooling chamber will not enter the inner shell, thus avoiding the influence of the coolant on the motor and ensuring the waterproof performance of the device. The tail end face of the inner shell 1 is provided with a wire lead-out hole 23, which is used to lead the motor lead-out to the outside of the outer shell 2.

[0025] See Figure 5 , Figure 5 This is a schematic diagram of the structure at the rear of the outer casing. In the diagram, the upper part of the top of the outer casing 2 is a liquid outlet 81 and a liquid outlet plug 91 that cooperates with the liquid outlet 81; the bottom of the outer casing 2 is a liquid inlet 82 and a liquid inlet plug 92 that cooperates with the liquid inlet 82. In this embodiment, a bottom-in, top-out method is adopted. The cooling chamber is injected through the liquid inlet 82. After the coolant completes the heat exchange of the inner casing 1 and the heat dissipation fins 5, the coolant is discharged from the liquid outlet 81, thereby achieving the cooling effect on the motor inside the inner casing 1.

[0026] See Figure 6 , Figure 6 This is a partial cross-sectional view of the outer shell and inner shell tail assembly. In the figure, a tail heat dissipation cavity 10 is formed between the tail of the outer shell 2 and the inner shell 1. The tail heat dissipation cavity 10 and the cooling cavity 4 are connected by a connecting sleeve 6 through the wire lead-out holes 23 on the inner shell 1 and the outer shell 2. In this way, the motor leads are connected to external components by passing through the connecting sleeve 6.

[0027] The working principle of this utility model is as follows: When used by those skilled in the art, the remaining components of the motor or the entire motor are installed inside the inner shell 1. By opening the liquid inlet plug 92 at the bottom of the liquid inlet 82, the coolant enters the cooling chamber 4 between the inner shell 1 and the outer shell 2 through the liquid inlet 82. Then, the liquid inlet plug 91 at the top of the liquid outlet 81 is opened. When the motor is working, the heat generated by the motor inside the inner shell 1 is transferred to the heat dissipation fins 5 through heat transfer. Then, the heat dissipation fins 5 are cooled by water through the coolant. The part of the heat dissipation fins 5 extending to the outside of the outer shell 2 is cooled by air. Thus, the tail of the motor is cooled by air, thereby improving the efficiency of air and water cooling inside the motor housing.

[0028] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A motor housing with heat dissipation and waterproof function, characterized in that, include: shell; An inner shell is fitted inside the outer shell, and a cooling cavity filled with coolant is formed between the outer wall of the inner shell and the inner wall of the outer shell. The inner shell has multiple heat dissipation fins that extend radially outward from its outer wall. These fins pass through the outer shell and extend to the outside of the outer shell.

2. The motor housing with heat dissipation and waterproof functions according to claim 1, characterized in that, The inner wall of the inner shell is provided with an installation groove near the opening, a metal heat-conducting plate is provided in the installation groove, and a sealing groove is provided on the side of the metal heat-conducting plate away from the opening, and a sealing ring is installed in the sealing groove. The flange at the opening of the outer shell is connected to the metal heat-conducting plate by bolts, thereby connecting the outer shell and the inner shell.

3. The motor housing having a heat radiation waterproof function according to claim 1, wherein The top two sides of the heat dissipation fins are rounded, and a through groove is provided on the peripheral wall of the outer shell for the heat dissipation fins to pass through. The through groove is matched with the corresponding heat dissipation seal.

4. The motor housing having a heat radiation waterproof function according to claim 1, wherein The top of the outer casing is provided with a liquid outlet communicating with the cooling cavity, and a liquid outlet plug covering the liquid outlet; The bottom of the outer casing has a liquid inlet communicating with the cooling cavity, and a liquid inlet plug covering the liquid inlet.

5. The motor housing having a heat radiation waterproof function according to claim 1, wherein A gap is left between the tail end face of the outer shell and the tail end face of the inner shell to form a tail heat dissipation cavity, which is connected to the cooling cavity.

6. The motor housing having a heat radiation waterproof function according to claim 1, wherein Both the tail end face of the outer shell and the tail end face of the inner shell are provided with wire lead-out holes, and the two wire lead-out holes are connected by a connecting sleeve.

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