Heat dissipation type motor barrel of oil cooling motor
By setting up an internal cooling runner and an S-type rotary heat dissipation runner in the motor barrel, combining the partitioning block and oil-filling bump, the problems of low heat dissipation efficiency and noise of the small-power motor are solved, and efficient and uniform heat dissipation effect is achieved, suitable for small and medium-sized Use of motor.
Patent Information
- Application Number
- CN202420957527.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing heat dissipation methods cannot be effectively adapted to low-power and small-volume motors, especially when the noise sensitivity is high and external cooling equipment cannot be equipped, the heat dissipation efficiency is low and the use flexibility is poor.
An oil-cooled motor cooling type motor barrel is designed. By setting an internal cooling runner in the cylinder of the motor barrel, the cooling runner is circulated to dissipate heat. The heat dissipation runner adopts an S-type rotary structure, combining the partitioning block and the oil-injecting bump. Ensure that the flow path of the coolant is single and stable, and achieves efficient and uniform heat dissipation.
It achieves efficient heat dissipation effect, reduces noise, enhances the flexibility of the motor, does not rely on external cooling equipment, and is suitable for use scenarios of small and medium-sized motors.
Smart Images
Figure CN222283002U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motors, and in particular relates to an oil-cooled motor heat dissipation type motor barrel. Background Art
[0002] There are three main ways to dissipate heat for motors: natural heat dissipation, forced air cooling, and liquid cooling. Natural heat dissipation uses the motor's own radiator or the surface area of the shell to dissipate heat. For example, a heat sink is set on the surface of the motor. This method has low heat dissipation efficiency and is only suitable for occasions where the operating environment temperature is not high. Forced air cooling uses a fan or other tool to force air to circulate and generate cold air flow on the surface of the motor to effectively expand the heat dissipation area and enhance the heat exchange intensity. This method is noisy and suitable for high-power motors. Liquid cooling uses a built-in oil cooler or an external cooling device to dissipate heat through the circulation of water or oil. Although this method has good heat dissipation effect, it must be equipped with external oil cooling equipment, and has high requirements for the site and environment. It is suitable for motors with high speed and high ambient temperature. Small-power and small-volume motors can be used in many scenarios. These scenarios are highly sensitive to noise and cannot be equipped with corresponding cooling equipment. The flexibility of the motor is also required. Therefore, the existing heat dissipation methods cannot be adapted to small-power motors. Utility Model Content
[0003] In view of the above problems and technical requirements, the utility model provides an oil-cooled motor heat dissipation type motor barrel, in which an internal cooling channel is arranged in the barrel body of the motor barrel, and the motor barrel is directly cooled by circulating coolant, which has high heat dissipation efficiency and low noise, and does not affect the flexibility of motor use.
[0004] The technical scheme of the utility model is as follows: an oil-cooled motor heat dissipation type motor barrel, including a barrel, a heat dissipation channel and an oil injection lug. The barrel is provided with an inner layer, a cooling layer and an outer layer in sequence from the inside to the outside in the radial direction. The heat dissipation channel is arranged in the cooling layer, and an oil injection lug is arranged on the surface of the outer layer. The coolant can be injected into the heat dissipation channel through the oil injection lug. After the coolant circulates around the heat dissipation channel for a circle, it is discharged outward through the oil injection lug. The outer side of the heat dissipation channel is welded to the outer layer, and the inner side is welded to the inner layer. A sealing ring is arranged between the inner layer and the outer layer at both end surfaces of the barrel. The inner layer, the outer layer and the sealing ring seal the heat dissipation channel. The heat dissipation channel is curved, and the flow path of the coolant in the heat dissipation channel is single, and there is no intersection between the coolant injected inward and the coolant flowing outward. In this scheme, the external coolant and the heat dissipation channel inside the barrel can be thermally circulated through the oil injection lug. The coolant takes away the heat of the barrel and the barrel, and directly dissipates the heat of the motor barrel. The heat dissipation efficiency is high and the heat dissipation noise is low.
[0005] Furthermore, the heat dissipation channel is an S-shaped rotary structure, and the heat dissipation channel includes a plurality of sealing baffles, which are arranged at equal intervals around the circumference, and the sealing baffles are parallel to each other, and a direct flow channel is formed between adjacent sealing baffles, and the bottoms of adjacent sealing baffles are staggered and connected to the sealing rings on both sides, and a liquid flow gap is provided between the top of the sealing baffle and the sealing ring on the other side, and the direct flow channel between the liquid flow gap and the sealing baffle constitutes an S-shaped channel for liquid flow. The S-shaped channel is wrapped in the cylinder, and the direct flow channel of the S-shaped channel also covers the entire length of the cylinder, so the heat dissipation of the cylinder through the heat dissipation channel can act on the entire cylinder, there is no heat dissipation dead angle, and the heat dissipation is more uniform.
[0006] Furthermore, a partition block is welded in one of the direct current channels of the heat dissipation channel, the partition block is intercepted horizontally in the middle of the direct current channel, and the two ends of the partition block are respectively welded to the sealing baffles on both sides of the direct current channel, and the partition block is at the same height as the sealing baffle, and the partition block divides the direct current channel into an oil inlet cavity and an oil outlet cavity. The partition block separates the oil inlet cavity as the starting point of the coolant flow and the oil outlet cavity as the end point, so that the flow direction of the heat dissipation channel is single, and the coolant entering at different times will not intersect, causing the liquid flow temperature to be turbulent. The stable liquid flow temperature can achieve a better cooling effect.
[0007] Furthermore, the oil injection protrusion is a strip block with the same length as the cylinder body, the oil injection protrusion is axially connected to the outer side surface of the outer layer, the oil injection protrusion is correspondingly arranged on the outside of the oil inlet cavity and the oil outlet cavity, and the oil injection protrusion is provided with an oil inlet hole and an oil outlet hole, the oil inlet hole leads to the oil inlet cavity, and the oil outlet hole leads to the oil outlet cavity.
[0008] Furthermore, a positioning groove is provided on the peripheral surface of the outer layer of the cylinder, and the positioning groove is flush with the end surface of the cylinder.
[0009] Furthermore, a plurality of connection holes are provided on the end surfaces at both ends of the cylinder.
[0010] Compared with the prior art, the utility model has the following beneficial effects: 1) the utility model sets a heat dissipation channel in the cylinder, and dissipates the heat of the cylinder by circulating and injecting coolant into the heat dissipation channel. Since the cylinder can dissipate the heat directly from the inside, the heat dissipation efficiency is higher than cooling from the outside; 2) the heat dissipation channel is an S-shaped rotary channel, which not only covers the entire circumference of the cylinder, but also covers the entire length of the cylinder, so the cooling effect is more uniform, and there will be no local overheating; 3) the oil inlet chamber and the oil outlet chamber are separated by a partitioning block, so that the coolant will not intersect when injected and outflowed, and no heat convection will occur. The coolant circulates along the fixed S-shaped channel to surround the entire circumference, the temperature of the coolant changes steadily, and the cooling effect on the cylinder is more stable; 4) the heat dissipation structure of the cylinder does not generate noise, only needs to provide circulating coolant, does not rely on an external liquid cooling mechanism, has a wider range of usage scenarios, and is suitable for use with small and medium-sized motors. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is the overall structural diagram of the oil-cooled motor heat dissipation type motor barrel of the utility model;
[0012] Figure 2 This is a schematic diagram of the flow direction of the heat dissipation channel in the motor barrel;
[0013] Figure 3 This is the structural diagram of the heat dissipation channel in the motor barrel;
[0014] Figure 4 is a radial cross-sectional view of the motor barrel;
[0015] Figure 5 A partial cross-sectional view of the motor barrel oil filling bump;
[0016] Marked in the figure are: cylinder 1, sealing ring 11, connecting hole 12, inner layer 2, cooling layer 3, heat dissipation channel 31, sealing baffle 32, straight flow channel 33, liquid flow gap 34, partition insert 35, oil inlet cavity 36, oil outlet cavity 37, outer layer 4, positioning groove 41, oil filling protrusion 5, oil inlet hole 51, oil outlet hole 52. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0018] like Figure 1-5 The utility model is shown as an oil-cooled motor heat dissipation type motor barrel, including a barrel 1, a heat dissipation channel 31 and an oil injection protrusion 5. The barrel 1 is provided with an inner layer 2, a cooling layer 3 and an outer layer 4 in sequence from the inside to the outside in the radial direction. The heat dissipation channel 31 is arranged in the cooling layer 3, and the surface of the outer layer 4 is provided with an oil injection protrusion 5. A positioning groove 41 is provided on the circumferential surface of the outer layer 4 of the barrel, and the positioning groove 41 is flush with the end face of the barrel 1. A plurality of connecting holes 12 are also provided on the end faces at both ends of the barrel.
[0019] The heat dissipation channel 31 is welded to the outer layer 4 on the outside and to the inner layer 2 on the inside. A sealing ring 11 is provided between the inner layer 2 and the outer layer 4 on both end surfaces of the cylinder 1. The inner layer 2, the outer layer 4 and the sealing ring 11 enclose the heat dissipation channel 31 inside. The heat dissipation channel 31 is curved. Specifically, the heat dissipation channel 31 is an S-shaped rotating structure. The heat dissipation channel 31 includes a plurality of sealing baffles 32. The plurality of sealing baffles 32 are arranged at equal intervals around the circumference. The sealing baffles 32 are parallel to each other. A direct current channel 33 is formed between adjacent sealing baffles 32. The bottoms of adjacent sealing baffles 32 are staggeredly connected to the sealing rings 11 on both sides. A liquid flow gap 34 is provided between the top of the sealing baffle 32 and the sealing ring 11 on the other side. The liquid flow gap 34 and the direct current channel 33 between the sealing baffles 32 constitute an S-shaped channel for liquid flow.
[0020] The coolant can be injected into the heat dissipation channel 31 through the oil injection protrusion 5. After the coolant circulates around the heat dissipation channel 31 for one circle, it is discharged outward through the oil injection protrusion 5. Specifically, a partition insert 35 is welded in one of the direct current channels 33 of the heat dissipation channel 31. The partition insert 35 is horizontally intercepted in the middle of the direct current channel 33. The two ends of the partition insert 35 are respectively welded to the sealing baffles 32 on both sides of the direct current channel 33. The partition insert 35 is at the same height as the sealing baffle 32. The partition insert 35 divides the direct current channel 33 into an oil inlet chamber 36 and an oil outlet chamber 37. The flow path of the coolant in the heat dissipation channel 31 is single, and the coolant injected inward and the coolant flowing outward do not intersect. The partition insert 35 separates the oil inlet chamber 36 as the starting point of the coolant flow and the oil outlet chamber 37 as the terminal point, so that the flow direction of the heat dissipation channel is single, and the coolant entering at different times will not intersect, so that the liquid flow temperature is turbulent. The stable liquid flow temperature can achieve a better cooling effect.
[0021] The oil injection protrusion 5 is a strip block with the same length as the cylinder 1. The oil injection protrusion 5 is axially connected to the outer surface of the outer layer 4. The oil injection protrusion 5 is correspondingly arranged on the outside of the oil inlet cavity 36 and the oil outlet cavity 37. The oil injection protrusion 5 is provided with an oil inlet hole 51 and an oil outlet hole 52. The oil inlet hole 51 leads to the oil inlet cavity 36, and the oil outlet hole 52 leads to the oil outlet cavity 37.
[0022] The working principle of the utility model is as follows: the coolant is injected into the oil inlet cavity 36 through the oil inlet hole 51, the coolant starts from the oil inlet cavity 36, passes through the liquid flow gap 34 and enters the direct current channel 33, and then enters the next direct current channel 33 from the liquid flow gap 34 at the other end of the direct current channel 33. The coolant diffuses and flows in the cooling layer according to an S-shaped route, and the cylinder 1 and the motor structure inside the cylinder are liquid-cooled. The coolant that flows around the cooling layer 3 of the cylinder eventually returns to the oil outlet cavity 37 and flows out of the cylinder through the oil outlet hole 52, completing a cooling cycle.
[0023] The above are only several preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes and substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. Oil-cooled motor heat dissipation type motor barrel, characterized by: It includes a cylinder, a heat dissipation channel and an oil injection lug. The cylinder is provided with an inner layer, a cooling layer and an outer layer in sequence from the inside to the outside in the radial direction. The heat dissipation channel is arranged in the cooling layer. The outer layer surface is provided with an oil injection lug. The coolant can be injected into the heat dissipation channel through the oil injection lug. After the coolant circulates around the heat dissipation channel for one circle, it is discharged outward through the oil injection lug. The outer side of the heat dissipation channel is welded to the outer layer, and the inner side is welded to the inner layer. A sealing ring is provided between the inner layer and the outer layer on both end surfaces of the cylinder, and the inner layer, the outer layer and the sealing ring close the heat dissipation channel inside. The heat dissipation channel is curved, the flow path of the coolant in the heat dissipation channel is single, and there is no intersection between the coolant injected inward and the coolant flowing outward.
2. The oil-cooled motor heat dissipation type motor barrel according to claim 1, characterized in that: The heat dissipation flow channel is an S-shaped rotating structure, and the heat dissipation flow channel includes a plurality of sealing baffles, which are arranged at equal intervals around the circumference, and the sealing baffles are parallel to each other, and a direct flow channel is formed between adjacent sealing baffles. The bottoms of adjacent sealing baffles are staggered and connected to the sealing rings on both sides, and a liquid flow gap is provided between the top of the sealing baffle and the sealing ring on the other side. The liquid flow gap and the direct flow channel between the sealing baffles constitute an S-shaped flow channel for liquid flow.
3. The oil-cooled motor heat dissipation type motor barrel according to claim 2 is characterized in that: A partition block is welded in one of the direct current channels of the heat dissipation flow channel. The partition block is intercepted horizontally in the middle of the direct current channel. The two ends of the partition block are respectively welded to the sealing baffles on both sides of the direct current channel. The partition block is at the same height as the sealing baffle. The partition block divides the direct current channel into an oil inlet chamber and an oil outlet chamber.
4. The oil-cooled motor heat dissipation type motor barrel according to claim 3, characterized in that: The oil injection protrusion is a strip block with the same length as the cylinder body. The oil injection protrusion is axially connected to the outer side of the outer layer. The oil injection protrusion is correspondingly arranged on the outside of the oil inlet cavity and the oil outlet cavity. The oil injection protrusion is provided with an oil inlet hole and an oil outlet hole. The oil inlet hole leads to the oil inlet cavity, and the oil outlet hole leads to the oil outlet cavity.
5. The oil-cooled motor heat dissipation type motor barrel according to claim 4, characterized in that: A positioning groove is provided on the peripheral surface of the outer layer of the cylinder, and the positioning groove is flush with the end surface of the cylinder.
6. The oil-cooled motor heat dissipation type motor barrel according to claim 5, characterized in that: A plurality of connection holes are also provided on the end surfaces at both ends of the cylinder.