Water-cooling heat dissipation structure of explosion-proof motor
By incorporating isolation and flow guiding structures in the explosion-proof motor, the problems of air bubbles and eddies caused by stator vibration in water-cooled pipes are solved, thereby improving heat dissipation efficiency and explosion-proof performance.
Patent Information
- Application Number
- CN202511326480.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2025-11-07
AI Technical Summary
In explosion-proof motors, water-cooling pipes can experience air bubbles or eddies in the coolant due to stator vibration, reducing heat dissipation efficiency.
The design of the water-cooled heat dissipation structure for the explosion-proof motor involves setting up an isolation structure and a flow guiding structure between the motor stator and the explosion-proof housing. The coolant flows between the explosion-proof housing and the isolation structure, reducing the flow path of the coolant and allowing small air bubbles to accumulate into large air bubbles in the gaps between the guide plates to eliminate the air bubbles.
It enhances the heat exchange efficiency of the coolant, reduces bubble generation, improves the explosion-proof effect of the explosion-proof housing, and enhances the cooling capacity of the motor stator.
Smart Images
Figure CN120915046A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of water cooling heat dissipation, in particular to a water cooling heat dissipation structure of an explosion-proof motor. BACKGROUND
[0002] The explosion-proof motor is a special motor that can safely operate in a flammable and explosive environment. Its core function is to prevent internal ignition sources from igniting external dangerous media or to limit the spread of internal explosion energy to the outside, thereby avoiding explosion accidents. It is widely used in industries such as petroleum, chemical industry, coal mine, medicine, and food processing that have safety hazards.
[0003] The water cooling pipeline generally arranged in the explosion-proof motor is a continuous pipeline around the stator of the explosion-proof motor. The rotation of the rotor of the explosion-proof motor may cause the stator to vibrate, and the vibration of the stator is then transmitted to the water cooling pipeline, thereby destroying the laminar flow state of the cooling liquid in the pipeline, generating additional vortex and turbulence in the pipeline, increasing the flow resistance, reducing the effective flow, and weakening the heat dissipation efficiency. SUMMARY
[0004] Therefore, the purpose of the present application is to provide a water cooling heat dissipation structure of an explosion-proof motor to solve the problem of bubbles or vortexes in the cooling liquid in the water cooling pipeline of the existing explosion-proof motor caused by the vibration of the stator.
[0005] The present application is achieved by the following technical solutions:
[0006] A water cooling heat dissipation structure of an explosion-proof motor, comprising a shell structure, an isolation structure installed in the shell structure, a circumferential array of flow guide structures installed between the shell structure and the isolation structure, a motor stator installed in the isolation structure, an array of water cooling pipelines installed in the motor stator, and a motor rotor rotatably connected in the motor stator.
[0007] The shell structure comprises an explosion-proof shell, and a water outlet pipe and a water inlet pipe are respectively installed on the explosion-proof shell.
[0008] The flow guide structure comprises a sealing plate installed on the explosion-proof shell, symmetrically distributed outer guide plates installed on the sealing plate, outer middle guide plates installed between the outer guide plates on the sealing plate, symmetrically distributed inner guide plates installed on the sealing plate, and inner middle guide plates installed between the inner guide plates on the sealing plate.
[0009] Its characterized in that: the sealing plate is installed with the connecting rod that is attached with the outside guide plate and the inside guide plate, the other end of the connecting rod is installed with the flow guide bottom plate, the flow guide bottom plate is attached with the outside guide plate, the outside middle guide plate, the inside guide plate and the inside middle guide plate, the flow guide bottom plate is opened with the through slot that the gap of outside guide plate and outside middle guide plate and inside guide plate and inside middle guide plate is same size.
[0010] Preferably, the isolation structure comprises a mounting isolation shell mounted in the explosion-proof shell, a sealing cover is mounted on the mounting isolation shell, a through hole for mounting a water-cooled pipe is formed on the mounting isolation shell, and both ends of the water-cooled pipe are mounted in the mounting isolation shell.
[0011] Preferably, the mounting isolation shell is mounted with symmetrically distributed isolation baffles, the isolation baffles are located on both sides of the through hole on the mounting isolation shell, and the water inlet pipe is located between the isolation baffles.
[0012] Preferably, the explosion-proof shell is respectively opened with a communication hole corresponding to the water outlet pipe and the water inlet pipe, the water outlet pipe is communicated through the communication hole on the explosion-proof shell and the area formed by the isolation baffle, the explosion-proof shell and the mounting isolation shell, and the water inlet pipe is communicated through the communication hole on the explosion-proof shell and the area formed by the outside guide plate, the isolation baffle, the explosion-proof shell and the mounting isolation shell.
[0013] Preferably, the motor stator is mounted in the mounting isolation shell, and a heat exchange hole for mounting the water-cooled pipe is formed on the motor stator.
[0014] Preferably, one side of the outside guide plate close to the outside middle guide plate is wavy, the wavy side of the outside guide plate gradually moves away from the outside middle guide plate from the side close to the mounting isolation shell to the side close to the explosion-proof shell, both sides of the outside middle guide plate close to the outside guide plate are wavy, and the two wavy sides of the outside middle guide plate gradually move away from the outside guide plate from the side close to the mounting isolation shell to the side close to the explosion-proof shell.
[0015] Preferably, one side of the inside guide plate close to the inside middle guide plate is wavy, the wavy side of the inside guide plate gradually moves away from the inside middle guide plate from the side close to the mounting isolation shell to the side close to the explosion-proof shell, both sides of the inside middle guide plate close to the inside guide plate are wavy, and the two wavy sides of the inside middle guide plate gradually move away from the inside guide plate from the side close to the mounting isolation shell to the side close to the explosion-proof shell.
[0016] The beneficial effects of the present application are:
[0017] The water-cooling heat dissipation structure of the explosion-proof motor is connected with the space between the explosion-proof shell and the installation isolation shell through a separate water-cooling pipeline, avoids the continuous condition of the water-cooling pipeline in the water-cooling pipeline, shortens the flow path of the cooling liquid in the water-cooling pipeline, and thus enhances the heat exchange efficiency of the cooling liquid, reduces the probability of bubbles generated in the water-cooling pipeline due to the vibration of the motor stator, on the other hand, the cooling liquid between the explosion-proof shell and the installation isolation shell flows in and out of the space between the explosion-proof shell and the installation isolation shell, so that the cooling liquid between the explosion-proof shell and the installation isolation shell cools the motor stator and the explosion-proof shell at the same time, and the cooling liquid is buffered and isolated between the explosion-proof shell and the motor stator, thus enhancing the explosion-proof effect of the explosion-proof shell, on the other hand, the outer side guide plate, the outer middle guide plate, the inner side guide plate and the inner middle guide plate are arranged between the explosion-proof shell and the installation isolation shell, for the bubbles still existing in the cooling liquid flowing out of the water-cooling pipeline, the bubbles flow through the outer side guide plate and the outer middle guide plate or the inner side guide plate and the inner middle guide plate, and through the wave-shaped design, the space for the cooling liquid to flow changes through the wave crest and the wave trough, so that the small bubbles in the cooling liquid gather into large bubbles, and since the stability of the large bubbles decreases, the large bubbles break, so as to achieve the elimination effect of the bubbles.
[0018] Other advantages, objects, and features of the present application will be better understood from the following specification taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a schematic diagram of the limb structure of the present application;
[0020] Figure 2 It is a schematic diagram of the shell structure connection of the present application;
[0021] Figure 3 It is a schematic diagram of the internal structure installation of the present application;
[0022] Figure 4 It is a schematic diagram of the flow guide structure connection of the present application;
[0023] Figure 5 It is a schematic diagram of the flow guide bottom plate of the present application;
[0024] Figure 6 It is a schematic diagram of the flow guide plate installation of the present application;
[0025] Figure 7 It is a schematic diagram of the isolation structure installation of the present application;
[0026] Figure 8The installation schematic diagram of the water-cooled pipeline of the present application.
[0027] In the figure: 1, housing structure; 11, explosion-proof housing; 12, water outlet pipe; 13, water inlet pipe;
[0028] 2, flow guide structure; 21, sealing plate; 22, connecting rod; 23, flow guide bottom plate; 24, outer side guide plate; 25, outer middle guide plate; 26, inner side guide plate; 27, inner middle guide plate; 28, isolation baffle;
[0029] 3, isolation structure; 31, sealing cover; 32, installation isolation housing; 4, motor stator; 5, water-cooled pipeline; 6, motor rotor. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0032] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0033] In the above description of the present application, it should be noted that the terms "one side", "the other side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0034] In addition, the terms "same" and the like do not mean that the components must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the components is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.
[0035] Please refer to Figures 1 to 8 The application provides a technical scheme: a water-cooling heat dissipation structure of an explosion-proof motor. The water-cooling heat dissipation structure comprises a shell structure 1, an isolation structure 3 is installed in the shell structure 1, a circumferential array distribution of flow guide structures 2 is installed between the shell structure 1 and the isolation structure 3, a motor stator 4 is installed in the isolation structure 3, an array distribution of water-cooling pipelines 5 is installed in the motor stator 4, and a motor rotor 6 is rotationally connected in the motor stator 4.
[0036] Among them, the shell structure 1 comprises an explosion-proof shell 11, and a water outlet pipe 12 and a water inlet pipe 13 are respectively installed on the explosion-proof shell 11.
[0037] The flow guide structure 2 comprises a sealing plate 21 installed on the explosion-proof shell 11, symmetrically distributed outer guide plates 24 are installed on the sealing plate 21, outer middle guide plates 25 located between the outer guide plates 24 are installed on the sealing plate 21, symmetrically distributed inner guide plates 26 are installed on the sealing plate 21, and inner middle guide plates 27 located between the inner guide plates 26 are installed on the sealing plate 21.
[0038] In the above manner: by arranging the isolation structure 3 and the flow guide structure 2 between the motor stator 4 and the explosion-proof shell 11, and by separately connecting the space between the explosion-proof shell 11 and the isolation structure 3 with the water-cooling pipelines 5, the cooling liquid flowing in the space between the explosion-proof shell 11 and the isolation structure 3 can flow into the single water-cooling pipeline 5, and then the heat exchange between the motor stator 4 and the water-cooling pipeline 5 is used to cool the motor stator 4, so as to avoid the cooling liquid flowing through the continuously connected water-cooling pipelines 5 to exchange heat with the motor stator 4, improve the heat exchange efficiency between the motor stator 4 and the water-cooling pipeline 5, and at the same time, since the motor rotor 6 may vibrate during rotation, the vibration of the motor stator 4 is transmitted to the water-cooling pipeline 5, so that the cooling liquid flowing in the water-cooling pipeline 5 is affected by the vibration, and bubbles or vortexes occur in the water-cooling pipeline 5, by designing the water-cooling pipeline 5 as a separate individual and connecting it with the space between the explosion-proof shell 11 and the isolation structure 3, the flow path of the cooling liquid is shortened, the probability of bubbles or vortexes is reduced, the bubbles or vortexes in the cooling liquid do not affect the heat exchange effect of the cooling liquid, and the cooling effect on the motor stator 4 is reduced.
[0039] By flowing the cooling liquid in the space between the explosion-proof shell 11 and the isolation structure 3, the explosion-proof shell 11 is cooled to a certain extent on the basis of cooling the motor stator 4 by the cooling liquid flowing in the water-cooling pipeline 5, and the cooling liquid in the space between the explosion-proof shell 11 and the isolation structure 3 provides an additional layer of protection for possible explosions, thereby assisting the explosion-proof shell 11 to enhance the explosion-proof effect.
[0040] To further eliminate the possibility of bubbles in the cooling liquid in the water cooling pipe 5 due to the vibration of the motor stator 4, by setting the outer guide plate 24, the outer middle guide plate 25, the inner guide plate 26 and the inner middle guide plate 27 between the explosion-proof shell 11 and the isolation structure 3 at the outlet position of the water cooling pipe 5, when the cooling liquid containing bubbles flows through the gap between the outer guide plate 24 and the outer middle guide plate 25 or the inner guide plate 26 and the inner middle guide plate 27, the gap between the outer guide plate 24 and the outer middle guide plate 25 or the inner guide plate 26 and the inner middle guide plate 27 is composed of a wave shape, and then the cooling liquid flows through the gap between the outer guide plate 24 and the outer middle guide plate 25 or the inner guide plate 26 and the inner middle guide plate 27, the bubbles in the cooling liquid are affected by the shape of the gap, and then the small bubbles in the cooling liquid are gathered into large bubbles, and then the large bubbles are broken, and then the effect of eliminating the bubbles in the cooling liquid is achieved, avoiding the bubbles entering the cooling liquid into the cooling liquid circulation system.
[0041] Please refer to Figures 4 to 6 The sealing plate 21 is provided with a connecting rod 22 fitted with the outer guide plate 24 and the inner guide plate 26, and the other end of the connecting rod 22 is provided with a flow guide bottom plate 23, which is fitted with the outer guide plate 24, the outer middle guide plate 25, the inner guide plate 26 and the inner middle guide plate 27. The flow guide bottom plate 23 is provided with a through slot with the same size as the gap between the outer guide plate 24 and the outer middle guide plate 25 and the inner guide plate 26 and the inner middle guide plate 27.
[0042] In the above manner: the outer guide plate 24, the outer middle guide plate 25, the inner guide plate 26 and the inner middle guide plate 27 installed between the sealing plate 21 and the flow guide bottom plate 23 guide the cooling liquid flowing out of the water cooling pipe 5, and then the cooling liquid flows through the through slot of the flow guide bottom plate 23 to the area between the flow guide bottom plate 23 and the isolation baffle 28, and then the cooling liquid enters the water outlet pipe 12. The sealing plate 21 and the flow guide bottom plate 23 fix the outer guide plate 24, the outer middle guide plate 25, the inner guide plate 26 and the inner middle guide plate 27 from both ends, and cooperate with the explosion-proof shell 11 and the isolation structure 3 to limit the distance of the cooling liquid flowing out of the water cooling pipe 5.
[0043] Please refer to Figure 3 and 7 The isolation structure 3 includes an installation isolation shell 32 installed in the explosion-proof shell 11, and the installation isolation shell 32 is provided with a sealing cover 31. The installation isolation shell 32 is provided with a through hole for installing the water cooling pipe 5, and the two ends of the water cooling pipe 5 are installed in the installation isolation shell 32.
[0044] The installation isolation shell 32 is provided with symmetrically distributed isolation baffles 28, which are located on both sides of the through hole on the installation isolation shell 32, and the water inlet pipe 13 is located between the isolation baffles 28.
[0045] The explosion-proof shell 11 is provided with a communication hole corresponding to the water outlet pipe 12 and the water inlet pipe 13, respectively. The water outlet pipe 12 is connected to the area formed by the explosion-proof shell 11, the isolation baffle 28 and the installation isolation shell 32 through the communication hole on the explosion-proof shell 11. The water inlet pipe 13 is connected to the area formed by the explosion-proof shell 11, the outer guide plate 24, the isolation baffle 28 and the installation isolation shell 32 through the communication hole on the explosion-proof shell 11.
[0046] In the above manner, the isolation baffle 28 is symmetrically arranged on the installation isolation shell 32 at the liquid inlet of the water cooling pipe 5, thereby isolating the liquid inlet of the water cooling pipe 5, isolating the liquid inlet and the liquid outlet at both ends of the water cooling pipe 5, limiting the flow path of the cooling liquid, and eliminating the air bubbles generated by the vibration of the motor stator 4 through the gap between the outer guide plate 24 and the outer middle guide plate 25 or the inner guide plate 26 and the inner middle guide plate 27.
[0047] Please refer to Figures 6 to 8 The motor stator 4 is installed in the installation isolation shell 32, and the heat exchange hole is arranged on the motor stator 4 for installing the water cooling pipe 5.
[0048] The wave-shaped surface of the outer guide plate 24 gradually moves away from the outer middle guide plate 25 from the side close to the installation isolation shell 32 to the side close to the explosion-proof shell 11. The two wave-shaped surfaces of the outer middle guide plate 25 gradually move away from the outer guide plate 24 from the side close to the installation isolation shell 32 to the side close to the explosion-proof shell 11.
[0049] The wave-shaped surface of the inner guide plate 26 gradually moves away from the inner middle guide plate 27 from the side close to the installation isolation shell 32 to the side close to the explosion-proof shell 11. The two wave-shaped surfaces of the inner middle guide plate 27 gradually move away from the inner guide plate 26 from the side close to the installation isolation shell 32 to the side close to the explosion-proof shell 11.
[0050] In the above manner: through the wave-shaped design of the outer side guide plate 24, the outer middle guide plate 25, the inner side guide plate 26 and the inner middle guide plate 27, the cooling liquid flow space flowing out from the water cooling pipe 5 is transformed between the wave crest and the wave trough, and then the small bubbles generated in the cooling liquid due to the vibration of the motor stator 4 are gathered into large bubbles, and then the large bubbles are broken due to the instability of the large bubbles, and then after the cooling liquid flows between the outer side guide plate 24 and the outer middle guide plate 25 or between the inner side guide plate 26 and the inner middle guide plate 27, the bubbles in the cooling liquid are eliminated through the transformation of the wave crest and the wave trough, and at the same time, due to the fact that the relative surfaces of the outer side guide plate 24, the outer middle guide plate 25, the inner side guide plate 26 and the inner middle guide plate 27 gradually move away from each other from inside to outside, and then during the flowing of the cooling liquid, the space size in which the cooling liquid is located is also increased during the time when the cooling liquid fills the gap between the outer side guide plate 24 and the outer middle guide plate 25 or between the inner side guide plate 26 and the inner middle guide plate 27, and the space for the breaking of the large bubbles is further enhanced.
[0051] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.
Claims
1. A water-cooling heat dissipation structure of an explosion-proof motor, comprising a shell structure (1), an isolation structure (3) is installed in the shell structure (1), a circumferential array distributed flow guide structure (2) is installed between the shell structure (1) and the isolation structure (3), a motor stator (4) is installed in the isolation structure (3), an array distributed water-cooling pipe (5) is installed in the motor stator (4), and a motor rotor (6) is rotatably connected in the motor stator (4), characterized in that: wherein the shell structure (1) comprises an explosion-proof shell (11), and a water outlet pipe (12) and a water inlet pipe (13) are respectively installed on the explosion-proof shell (11); the flow guide structure (2) comprises a sealing plate (21) installed on the explosion-proof shell (11), symmetrically distributed outer side guide plates (24) are installed on the sealing plate (21), an outer middle guide plate (25) is installed on the sealing plate (21) between the outer side guide plates (24), symmetrically distributed inner side guide plates (26) are installed on the sealing plate (21), and an inner middle guide plate (27) is installed on the sealing plate (21) between the inner side guide plates (26).
2. The water cooling heat dissipation structure of the explosion-proof motor according to claim 1, characterized in that: the sealing plate (21) is provided with a connecting rod (22) fitted with the outer side guide plates (24) and the inner side guide plates (26), the other end of the connecting rod (22) is provided with a flow guide bottom plate (23), the flow guide bottom plate (23) is fitted with the outer side guide plates (24), the outer middle guide plate (25), the inner side guide plates (26) and the inner middle guide plate (27), and the flow guide bottom plate (23) is provided with a through groove with the same size as the gaps between the outer side guide plates (24) and the outer middle guide plate (25) and between the inner side guide plates (26) and the inner middle guide plate (27).
3. The water cooling structure of the explosion-proof motor according to claim 1, characterized in that: the isolation structure (3) comprises an installation isolation shell (32) installed in the explosion-proof shell (11), a sealing cover (31) is installed on the installation isolation shell (32), the installation isolation shell (32) is provided with a through hole for installing the water-cooling pipe (5), and both ends of the water-cooling pipe (5) are installed in the installation isolation shell (32).
4. The water cooling structure of the explosion-proof motor according to claim 3, characterized in that: symmetrically distributed isolation baffles (28) are installed on the installation isolation shell (32), the isolation baffles (28) are located on both sides of the through hole on the installation isolation shell (32), and the water inlet pipe (13) is located between the isolation baffles (28).
5. The water cooling structure of the explosion-proof motor according to claim 4, characterized in that: the explosion-proof shell (11) is respectively provided with a communication hole corresponding to the water outlet pipe (12) and the water inlet pipe (13), the water outlet pipe (12) is communicated through the communication hole on the explosion-proof shell (11) and the region formed by the isolation baffles (28), the explosion-proof shell (11) and the installation isolation shell (32), and the water inlet pipe (13) is communicated through the communication hole on the explosion-proof shell (11) and the region formed by the outer side guide plates (24), the isolation baffles (28), the explosion-proof shell (11) and the installation isolation shell (32).
6. The water cooling structure of the explosion-proof motor according to claim 4, characterized in that: the motor stator (4) is installed in the installation isolation shell (32), and the motor stator (4) is provided with a heat exchange hole for installing the water-cooling pipe (5).
7. The water cooling structure of the explosion-proof motor according to claim 1, characterized in that: The wave-shaped surface of the outer side guide plate (24) gradually moves away from the outer middle guide plate (25) from the side close to the installation isolation shell (32) to the side close to the explosion-proof shell (11). The two wave-shaped surfaces of the outer middle guide plate (25) close to the outer side guide plate (24) gradually move away from the outer side guide plate (24) from the side close to the installation isolation shell (32) to the side close to the explosion-proof shell (11).
8. The water cooling heat dissipation structure of the explosion-proof motor according to claim 1, characterized in that: The wave-shaped surface of the inner side guide plate (26) gradually moves away from the inner middle guide plate (27) from the side close to the installation isolation shell (32) to the side close to the explosion-proof shell (11). The two wave-shaped surfaces of the inner middle guide plate (27) close to the inner side guide plate (26) gradually move away from the inner side guide plate (26) from the side close to the installation isolation shell (32) to the side close to the explosion-proof shell (11).