Water-cooling casing structure for motor

Abstract

The utility model relates to a water-cooling casing structure for a motor, which comprises a casing and a water channel arranged in the casing, and is characterized in that the water channel is a spiral stainless steel coil pipe, the whole stainless steel coil pipe is fixed on the inner side wall of the casing through a fixing piece, the end parts of the two sides of the stainless steel coil pipe are respectively connected with a water inlet elbow pipe and a water outlet elbow pipe, and the water inlet elbow pipe and the water outlet elbow pipe are connected with the casing. Mounting through holes corresponding to the water inlet bent pipe and the water outlet bent pipe are formed in the machine shell, the water inlet bent pipe and the water outlet bent pipe are correspondingly mounted in the two mounting through holes respectively, and the water inlet bent pipe and the water outlet bent pipe are partially exposed out of the machine shell, so that the water inlet bent pipe and the water outlet bent pipe are conveniently connected with an external water source and are regularly cleaned. The air conditioner has the advantages of being simple and reasonable in structure, good in refrigeration effect, long in service life and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of casing cooling, and relates to a water-cooled casing structure for motors. Background Technique

[0002] When developing the motor housing, it is necessary to comprehensively consider the process and production and processing costs. The main forming processes of the motor housing are low-pressure die casting and extrusion forming, followed by constructing a water channel circuit using end face friction welding. Each of the two forming processes has its own advantages and disadvantages. The extruded housing has stable performance and low material cost, but there are many welding and machining parts, and the machining cost and labor cost are relatively high. Moreover, it is only suitable for small-diameter motor housings with single structural functions. By using a low-pressure die-cast housing, it is possible to meet large-diameter motor housings and complex integrated motor housings. The die-cast aluminum water-cooled housing has become the mainstream process form in the market. However, there are also many die-casting defects in the die-cast motor housing, such as casting shrinkage cavities, sand inclusion (the water channels made of sand cores are difficult to clean in the later stage), difficult cleaning of the internal cooling water channels, non-compliance of the water channel cleanliness, and non-smooth water channel wall surfaces, etc. These pain points lead to a high scrap rate and cause serious losses to the manufacturer. After long-term use, scale is likely to condense on the inner wall surface of the water channel, slowly blocking the water channel, and ultimately resulting in a reduction in the heat dissipation effect of the housing and problems such as motor burnout, which also causes great losses to users.

[0003] Therefore, a water-cooled casing structure for motors is designed to overcome the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a water-cooled casing structure for motors with a simple and reasonable structure, good refrigeration effect, and high service life.

[0005] The utility model is realized by the following technical solutions: A water-cooled casing structure for motors includes a casing and a water channel installed inside the casing. The water channel is a spiral-shaped stainless steel coil pipe, and the entire stainless steel coil pipe is fixed on the inner side wall of the casing through a fixing member. An inlet elbow and an outlet elbow are respectively connected to both ends of the stainless steel coil pipe, and installation through holes corresponding to the inlet elbow and the outlet elbow are respectively provided on the casing. The inlet elbow and the outlet elbow are respectively installed in the two installation through holes, and the inlet elbow and the outlet elbow are partially exposed outside the casing for facilitating the external connection of the inlet elbow and the outlet elbow to a water source and regular cleaning.

[0006] Preferably: The fixing member is a long strip-shaped fixing and strengthening plate provided on at least one side of the stainless steel coil pipe. One end of the fixing and strengthening plate is fixed on the outer side wall of the stainless steel coil pipe, and the other end is installed on the inner side wall of the casing through bolts. This fixing and strengthening plate is used to improve the overall strength of the stainless steel coil pipe and ensure the overall stability after the stainless steel coil pipe is fixed.

[0007] Preferably, the water inlet elbow and the water outlet elbow at both ends of the stainless steel coil are corresponding in position, so that the water inlet elbow and the water outlet elbow installed on the mounting through hole of the casing are on the same surface of the casing, which is convenient for regular water addition and replacement of the water in the stainless steel coil.

[0008] Preferably, the water inlet elbow and the water outlet elbow are respectively fixed to both ends of the stainless steel coil by threads or welding.

[0009] Preferably, the number of turns of the stainless steel coil is seven, and the distance between adjacent turns of the stainless steel coil is the same, so that the stainless steel coil is evenly arranged on the inner side wall of the casing. After the water flows through the entire stainless steel coil through the water inlet elbow, it has a good water cooling effect on the casing.

[0010] Preferably, the overall height of the stainless steel coil is 95 mm, the overall diameter is 193 mm, the outer diameter of the tube of the stainless steel coil is 8 mm, and the wall thickness is 1 mm.

[0011] The beneficial effects of the present utility model are as follows: Since the stainless steel water pipe has a smooth surface, compared with other materials, the adhesion of scale on the stainless steel surface is lower. This makes the stainless steel water pipe relatively not easy to form scale and reduces the accumulation of scale. Therefore, the stainless steel water pipe adopted by the present utility model can, to a certain extent, resist the formation of scale and reduce the problem of scale blockage, which can greatly increase the overall service life, and replaces the existing water channel sand core, and also saves a set of molds for manufacturing the sand core, thereby reducing the use cost. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0013] Figure 2 It is a schematic diagram of the structure of the stainless steel coil in the present utility model. Detailed Embodiments

[0014] To make those of ordinary skill in the art more clearly understand the purpose, technical solution and advantages of the present utility model, the following further elaborates the present utility model with reference to the drawings and embodiments.

[0015] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation, so it should not be construed as a limitation to the present utility model.

[0016] The following will introduce the present utility model in detail with reference to the drawings: AsFigure 1 As shown in the figure, a water-cooled housing structure for a motor includes a housing 1 and a water channel installed inside the housing 1. The water channel is a spiral stainless steel coil 2, and the entire stainless steel coil 2 is fixed to the inner side wall of the housing 1 through a fixing member. An inlet elbow 3 and an outlet elbow 4 are respectively connected to both ends of the stainless steel coil 2, and installation through holes corresponding to the inlet elbow 3 and the outlet elbow 4 are respectively provided on the housing 1. The inlet elbow 3 and the outlet elbow 4 are respectively installed in the two installation through holes, and the inlet elbow 3 and the outlet elbow 4 partially protrude from the housing 1 to facilitate the external connection of the inlet elbow 3 and the outlet elbow 4 to a water source and regular cleaning.

[0017] As Figure 2 shown in the figure, the fixing member is a long fixing and strengthening plate 5 provided on at least one side of the stainless steel coil 2. One end of the fixing and strengthening plate 5 is fixed to the outer side wall of the stainless steel coil 2, and the other end is installed on the inner side wall of the housing 1 through bolts. The fixing and strengthening plate 5 is used to improve the overall strength of the stainless steel coil 2 and ensure the overall stability after the stainless steel coil 2 is fixed.

[0018] The positions of the inlet elbow 3 and the outlet elbow 4 at both ends of the stainless steel coil 2 correspond to each other, so that the water elbows 3 and the outlet elbow 4 installed on the installation through holes of the housing 1 are on the same plane of the housing, which is convenient for regular water addition and replacement of the water in the stainless steel coil 2. The inlet elbow 3 and the outlet elbow 4 are respectively fixed to both ends of the stainless steel coil 2 through threads or welding. The number of turns of the stainless steel coil 2 is seven, and the distance between adjacent turns of the stainless steel coil 2 is the same, so that the stainless steel coil 2 is evenly arranged on the inner side wall of the housing 1. After the water flows through the entire stainless steel coil 2 through the inlet elbow 3, it has a good water-cooling effect on the housing 1. The overall height of the stainless steel coil 2 is 95 mm, the overall diameter is 193 mm, the outer diameter of the stainless steel coil is 8 mm, and the wall thickness is 1 mm.

[0019] Aluminum alloy scale is a ubiquitous pollutant formed by the reaction of some elements in water with metals. Its main components are calcium carbonate, hard water, rust, sediment, hydroxides, etc. The formation of scale will affect the corrosion resistance, strength and surface quality of metals.

[0020] The most important issue in the scale formation process is the hardness of water. The so-called hardness of water refers to the amount of minerals in water, and the two elements of calcium and magnesium play a crucial role in the formation of scale. If the content of calcium and magnesium in water is high, it is easy to form scale. In addition, the higher the mineral content of water, the higher the corresponding hardness of water, and the easier it is to form scale. Temperature also has a certain impact on the formation of scale. Generally, the higher the temperature, the easier it is to form scale. Because high temperature will accelerate the precipitation rate of carbonates in water and make it easier to form scale.

[0021] Stainless steel water pipes can, to a certain extent, resist the formation of scale and reduce the problem of scale blockage.

[0022] Smooth surface: Stainless steel water pipes have a smooth surface. Compared with other materials, the adhesion of scale on the stainless steel surface is lower. This makes stainless steel water pipes relatively less likely to form scale and reduces the accumulation of scale.

[0023] Corrosion resistance: Stainless steel water pipes have strong corrosion resistance and are not easily eroded by corrosive substances in water quality. This reduces the risk of scale formation and scale blockage caused by corrosion.

[0024] Scale resistance characteristics: The chemical composition and microstructure of stainless steel materials endow them with certain scale resistance characteristics. Compared with other metal water pipes, the structure of stainless steel is less likely to be blocked by scale.

[0025] The stainless steel water pipes adopted in the present utility model can, to a certain extent, resist the formation of scale and reduce the problem of scale blockage, which can greatly extend the overall service life. Moreover, it replaces the existing water channel sand core and saves a set of molds for manufacturing the sand core, thereby reducing the use cost.

[0026] The installation process of the present utility model is as follows: First, use tools to make a spiral-shaped stainless steel coil pipe, then reinforce the three sides of the stainless steel coil pipe through three fixed reinforcing plates and position it through the fixed reinforcing plates. Then, place the stainless steel coil pipe in the central position of the casing mold. After the die-casting mold is closed, pour aluminum liquid into it. After cooling and forming, cut off the excess gating and machine it to the appropriate size, and the whole process is completed. It should be noted that the diameter and wall thickness of the stainless steel pipe of the present utility model can be determined according to the overall size of the required casing without any limitation.

[0027] The specific embodiments described herein are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those of ordinary skill in the art without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A water-cooled casing structure for a motor, comprising a casing (1) and a water channel installed in the casing (1), characterized in that: The water channel is a spiral stainless steel coil (2), the entire stainless steel coil (2) being fixed to the inner wall of the casing (1) by means of a fixing piece, a water inlet elbow (3) and a water outlet elbow (4) being connected to the two side ends of the stainless steel coil (2), and mounting through holes corresponding to the water inlet elbow (3) and the water outlet elbow (4) are respectively provided on the casing (1), the water inlet elbow (3) and the water outlet elbow (4) being respectively mounted in the two mounting through holes, and the water inlet elbow (3) and the water outlet elbow (4) are partially exposed outside the casing (1), so as to facilitate the water inlet elbow (3) and the water outlet elbow (4) to be connected to an external water source and to be cleaned regularly.

2. The water-cooled housing structure for a motor according to claim 1, characterized in that: The fixing member is a long strip of fixing reinforcement plate (5) arranged on at least one side of the stainless steel coil (2); one end of the fixing reinforcement plate (5) is fixed to the outer wall of the stainless steel coil (2), and the other end is mounted on the inner wall of the casing (1) by means of bolts; the fixing reinforcement plate (5) is used to improve the overall strength of the stainless steel coil (2) and ensure the overall stability of the stainless steel coil (2) after being fixed.

3. The water-cooled housing structure for a motor according to claim 2, characterized in that: The water inlet elbow (3) and the water outlet elbow (4) at the two side ends of the stainless steel coil (2) are positioned correspondingly, so that the water elbow (3) and the water outlet elbow (4) mounted on the mounting through hole of the casing (1) are located on the same surface of the casing, which is convenient for regularly adding water and replacing the water in the stainless steel coil (2).

4. The water-cooled housing structure for a motor according to claim 3, characterized in that: The water inlet elbow (3) and the water outlet elbow (4) are fixed to the two side ends of the stainless steel coil (2) respectively by means of threads or welding.

5. The water-cooled housing structure for a motor according to claim 4, characterized in that: The number of turns of the stainless steel coil (2) is seven, and the spacing between adjacent stainless steel coils (2) in each turn is the same, so that the stainless steel coil (2) is evenly arranged on the inner wall of the casing (1) as a whole. After the water flows through the entire stainless steel coil (2) through the water inlet elbow (3), a good water cooling effect is achieved on the casing (1).

6. The water-cooled housing structure for a motor according to claim 5, characterized in that: The overall height of the stainless steel coil (2) is 95 mm, the overall diameter is 193 mm, the outer diameter of the stainless steel coil is 8 mm, and the wall thickness is 1 mm.

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