A self-cooling brushless motor for an automobile heat dissipation system

Abstract

The utility model relates to a heat dissipation motor technical field, specifically disclose a kind of self-cooled brushless motor for automobile heat dissipation system, including front cover, still include: cover, the cover fixedly connected in the edge lower surface of front cover;Base, the base rotationally connected in the bottom of cover. Front cover and base are set to openwork state, make stator relatively bare, distinguish from the brushless motor of full-closed type, it is favorable to motor whole and carries out heat dissipation, avoid the failure problem caused by overheating when brushless motor high-speed rotation works, the rotation of shaft works synchronous drive its bottom's collar rotates, when the rotation of shaft, the fan blade of collar outer surface starts to rotate with the rotation of shaft, to make through the rotation of fan blade from the base side start and blow into cover inside the wind of outside, and finally export through the side of front cover, realize when motor works, utilize its own rotation effect to the motor body and carry out cooling, substantially reduce the temperature when motor works, protect the work safety and working life of motor.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation motor technology, specifically a self-cooling brushless motor for automotive cooling systems. Background Technology

[0002] Self-cooled brushless motors for automotive cooling systems are specialized drive devices used in automotive cooling systems. Their core feature is that they do not require additional cooling devices and achieve heat dissipation through their own structural design. They can effectively control their own operating temperature while providing power to the automotive cooling system, ensuring stable operation of the motor under complex automotive conditions. They are an important component for the efficient and safe operation of automotive cooling systems.

[0003] Existing brushless motors used in automotive cooling systems have several limitations. Traditional brushless motors often employ a fully enclosed structure, completely enclosing core components such as the stator. This results in poor heat dissipation, leading to overheating during high-speed operation, which can cause motor failure and affect lifespan and operational stability. Cooling relies on external cooling devices, lacking a self-cooling mechanism. This not only increases system complexity but also makes it difficult to respond to the motor's cooling needs in real time, resulting in limited cooling efficiency. Furthermore, in traditional motors, the shaft and stator are often connected via bearings, leaving the stator partially enclosed. This further hinders heat conduction and exacerbates localized overheating. Simultaneously, the connection structure lacks stability, making the motor susceptible to vibration and other factors that affect its operational accuracy. This makes it difficult to adapt to the complex operating conditions during vehicle operation, thus limiting the overall performance of the automotive cooling system. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a self-cooled brushless motor for automotive cooling systems, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a self-cooled brushless motor for an automotive cooling system, including a front cover, and further including: an outer cover, the outer cover being tubular and fixedly connected to the lower edge surface of the front cover; and a base, the base being rotatably connected to the bottom surface of the outer cover.

[0008] According to one embodiment of the present invention, a stator is fixedly connected to the upper surface of the middle part of the base, the stator is disposed inside the outer cover, and an enameled wire is wound on the stator.

[0009] According to one embodiment of the present invention, a magnet is fixedly connected to the inner surface of the outer cover, and multiple magnets are arranged at fixed intervals around the central axis of the outer cover, and the magnets are arranged on the outside of the stator.

[0010] According to one embodiment of the present invention, a rotating shaft is provided inside the stator, the rotating shaft and the stator are set to the same central axis, the top of the rotating shaft is rotatably connected through the middle upper surface of the front cover, and the bottom of the rotating shaft is rotatably connected through the lower surface of the base.

[0011] According to one embodiment of the present invention, the front cover is hollow, the base is also hollow, the base is hollow inside, a collar is fixedly sleeved on the bottom outer surface of the rotating shaft, and a fan blade is fixedly connected to the outer surface of the collar, wherein the collar and the fan blade are arranged inside the base.

[0012] According to one embodiment of the present invention, a sleeve is fixedly sleeved on the outer surface of the rotating shaft, the top of the sleeve is fixedly connected to the lower middle surface of the front cover, the bottom of the sleeve is fixedly connected to the upper middle surface of the base, and mounting rods are symmetrically fixedly connected to the outer surfaces of both ends of the sleeve, with three mounting rods configured as a group.

[0013] According to one embodiment of the present invention, the inner surface of the mounting rod is slidably connected to a sliding rod via a reserved sliding groove. A first roller is rotatably sleeved on the bottom outer surface of the sliding rod, and a second roller is rotatably sleeved on the top outer surface of the sliding rod. The bottom of the first roller is tapered. A first insertion plate is fixedly sleeved on the middle part of the sliding rod. A second insertion plate is elastically slidably inserted into both ends of the first insertion plate, wherein the first insertion plate and the second insertion plate are combined to form a ring.

[0014] Under the influence of magnetic changes, the magnet inside the outer cover begins to rotate along the stator. That is, the outer cover rotates synchronously relative to the stator. When the outer cover rotates, it will drive the front cover to rotate. The rotation of the front cover will then drive the rotating shaft to rotate. The base, as the fixed end, remains stationary with the stator. That is, the final state is that the outer cover, the front cover, and the rotating shaft rotate relative to the base and the stator.

[0015] (III) Beneficial Effects

[0016] This invention provides a self-cooled brushless motor for automotive cooling systems. It offers the following advantages:

[0017] (I) The automotive cooling system uses a self-cooling brushless motor. The front cover and base are designed to be hollow, making the stator relatively exposed. This is different from a fully enclosed brushless motor, which is conducive to the overall heat dissipation of the motor and avoids the problem of overheating caused by the brushless motor when it is working at high speed. When the shaft is working, it will drive the collar at its bottom to rotate synchronously. That is, when the shaft rotates, the fan blades on the outer surface of the collar begin to rotate synchronously with the shaft. This allows the external air to be blown into the outer cover from the base side through the rotation of the fan blades, and finally discharged through the front cover side. This achieves the goal of cooling the motor body by utilizing its own rotation when the motor is working, greatly reducing the temperature of the motor during operation and protecting the motor's working safety and service life.

[0018] (II) The automotive cooling system uses a self-cooled brushless motor. When the shaft rotates, it will synchronously drive the sleeve to rotate, causing the mounting rod on the outer surface of the sleeve to start rotating. At this time, the first and second rollers are pressed against the inner surface of the stator, causing the first and second rollers on the slide rod to start rotating relative to the inner surface of the stator. Unlike the traditional method of connecting the shaft and the stator through bearings, which keeps the middle of the stator in a relatively closed state, this motor makes the middle of the stator open as well. This, combined with the fan blades, greatly improves the heat dissipation efficiency inside the stator and avoids the problem of motor overheating caused by the high temperature at the bearings not being able to be dissipated in time. At the same time, the bottom of the first roller is set to be conical, so that the shaft can use its conical surface to adaptively insert into the stator, reducing the connection difficulty.

[0019] (III) The self-cooled brushless motor used in this automotive cooling system can achieve a diameter greater than the inner diameter of the stator by connecting the slide rod to the No. 1 and No. 2 plug-in plates. Combined with the tapered bottom surface of the No. 1 roller, the connection difficulty is reduced while ensuring that the No. 1 and No. 2 rollers are always in a state of relative compression and rotation after being plugged into the stator, which greatly improves the working stability of the motor. In addition, the No. 1 and No. 2 plug-in plates can also control the three slide rods to always move synchronously along the central axis of the rotating shaft, thereby further improving the stability of the motor during operation. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Fig. 2 This is a structural schematic diagram of the front cover and base of this utility model;

[0022] Fig. 3 This is a schematic diagram of the stator and its connection structure of this utility model;

[0023] Fig. 4This is a schematic diagram of the sleeve and its connection structure of this utility model.

[0024] In the diagram: 1. Front cover; 2. Outer cover; 3. Base; 4. Stator; 5. Enameled wire; 6. Magnet; 7. Shaft; 8. Collar; 9. Fan blade; 10. Sleeve; 11. Mounting rod; 12. Slide rod; 13. Roller No. 1; 14. Roller No. 2; 15. Connector No. 1; 16. Connector No. 2. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figs. 1 to 4 As shown, this utility model provides a technical solution: a self-cooled brushless motor for an automotive cooling system, including a front cover 1, and further comprising:

[0027] Outer cover 2, the outer cover 2 is tubular, and the outer cover 2 is fixedly connected to the lower edge surface of the front cover 1;

[0028] Base 3 is rotatably connected to the bottom surface of outer cover 2.

[0029] A stator 4 is fixedly connected to the upper middle surface of the base 3. The stator 4 is located inside the outer cover 2, and an enameled wire 5 is wound on the stator 4.

[0030] A magnet 6 is fixedly connected to the inner surface of the outer cover 2. Multiple magnets 6 are arranged at fixed intervals around the central axis of the outer cover 2. The magnets 6 are located on the outside of the stator 4.

[0031] The stator 4 has a rotating shaft 7 inside. The rotating shaft 7 and the stator 4 are set on the same central axis. The top of the rotating shaft 7 is rotatably connected to the upper surface of the middle part of the front cover 1, and the bottom of the rotating shaft 7 is rotatably connected to the lower surface of the base 3.

[0032] The front cover 1 is hollow, and the base 3 is also hollow. The base 3 is hollow inside. A collar 8 is fixedly sleeved on the bottom outer surface of the rotating shaft 7. A fan blade 9 is fixedly connected to the outer surface of the collar 8. The collar 8 and the fan blade 9 are located inside the base 3.

[0033] A sleeve 10 is fixedly fitted onto the outer surface of the rotating shaft 7. The top of the sleeve 10 is fixedly connected to the lower middle surface of the front cover 1, and the bottom of the sleeve 10 is fixedly connected to the upper middle surface of the base 3. Mounting rods 11 are symmetrically fixedly connected to the outer surfaces of both ends of the sleeve 10. The three mounting rods 11 are set as a group.

[0034] The inner surface of the mounting rod 11 is slidably connected to the slide rod 12 through a reserved slide groove. The bottom outer surface of the slide rod 12 is rotatably sleeved with a first roller 13, and the top outer surface of the slide rod 12 is rotatably sleeved with a second roller 14. The bottom of the first roller 13 is set to be conical. The middle part of the slide rod 12 is fixedly sleeved with a first plug plate 15. The two ends of the first plug plate 15 are elastically slidably inserted with a second plug plate 16, wherein the first plug plate 15 and the second plug plate 16 are combined to form a ring.

[0035] During operation, the magnet 6 inside the outer casing 2 begins to rotate along the stator 4 under the influence of magnetic changes. That is, the outer casing 2 rotates synchronously relative to the stator 4. The rotation of the outer casing 2 drives the front cover 1 to rotate, which in turn drives the rotating shaft 7 to rotate. The base 3, as the fixed end, remains stationary with respect to the stator 4. In the final state, the outer casing 2, connected to the front cover 1, rotates relative to the base 3 and the stator 4. However, when the motor is operating, the front cover 1 and the base 3 are designed to be open, leaving the stator 4 relatively exposed. This design, unlike fully enclosed brushless motors, facilitates overall motor heat dissipation, preventing overheating and malfunctions during high-speed operation. When the rotating shaft 7 is working, it synchronously drives the collar 8 at its bottom to rotate. That is, when the rotating shaft 7 rotates, the fan blades 9 on the outer surface of the collar 8 begin to rotate synchronously with the rotating shaft 7. This allows the rotation of the fan blades 9 to blow outside air from one side of the base 3 into the outer cover 2, and finally out through one side of the front cover 1. This achieves the goal of cooling the motor body by utilizing its own rotation during motor operation, significantly reducing the temperature of the motor during operation, protecting the motor's working safety and service life. At the same time, when the rotating shaft 7 rotates, it synchronously drives the sleeve 10 to rotate, causing the mounting rod 11 on the outer surface of the sleeve 10 to start rotating. At this time, the first roller 13 and the second roller 1... 4. The rollers 13 and 14 on the slide rod 12 are pressed and adhered to the inner surface of the stator 4, causing the first roller 13 and the second roller 14 on the slide rod 12 to begin rotating relative to each other with the inner surface of the stator 4. Unlike the traditional method of connecting the shaft 7 to the stator 4 through bearings, which leaves the middle of the stator 4 in a relatively closed state, this motor makes the middle of the stator 4 open as well. This, combined with the fan blade 9, greatly improves the heat dissipation efficiency inside the stator 4, avoiding the problem of motor overheating caused by the inability to dissipate the high temperature at the bearing. At the same time, the bottom of the first roller 13 is set to be conical, so that the shaft 7 can use its conical surface to adaptively insert into the stator 4, reducing the connection difficulty. By connecting the No. 1 plug-in plate 15 and the No. 2 plug-in plate 16 to each other, the diameter of the No. 1 roller 13 and the No. 2 roller 14 in the initial state is larger than the inner diameter of the stator 4. Combined with the bottom conical surface of the No. 1 roller 13, the connection difficulty is reduced, and the No. 1 roller 13 and the No. 2 roller 14 are always in a state of relative compression and rotation with the stator 4 after being plugged in, which greatly improves the working stability of the motor. In addition, the No. 1 plug-in plate 15 and the No. 2 plug-in plate 16 can also control the three slide rods 12 to always move synchronously along the central axis of the rotating shaft 7, thereby further improving the stability of the motor during operation.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cooled brushless motor for an automotive cooling system, comprising a front cover (1), characterized in that: Also includes: The outer cover (2) is tubular and is fixedly connected to the lower edge of the front cover (1); The base (3) is rotatably connected to the bottom surface of the outer cover (2).

2. The self-cooled brushless motor for an automotive cooling system according to claim 1, characterized in that: A stator (4) is fixedly connected to the upper surface of the middle part of the base (3). The stator (4) is located inside the outer cover (2). Enamelled wire (5) is wound on the stator (4).

3. A self-cooled brushless motor for an automotive cooling system according to claim 2, characterized in that: A magnet (6) is fixedly connected to the inner surface of the outer cover (2). Multiple magnets (6) are arranged at fixed intervals around the central axis of the outer cover (2). The magnets (6) are arranged on the outside of the stator (4).

4. A self-cooled brushless motor for an automotive cooling system according to claim 3, characterized in that: The stator (4) is provided with a rotating shaft (7) inside. The rotating shaft (7) and the stator (4) are set to the same central axis. The top of the rotating shaft (7) is rotatably connected to the upper surface of the middle part of the front cover (1), and the bottom of the rotating shaft (7) is rotatably connected to the lower surface of the base (3).

5. A self-cooled brushless motor for an automotive cooling system according to claim 4, characterized in that: The front cover (1) is hollow, and the base (3) is also hollow. The base (3) is hollow inside. A collar (8) is fixedly sleeved on the bottom outer surface of the rotating shaft (7). A fan blade (9) is fixedly connected to the outer surface of the collar (8). The collar (8) and the fan blade (9) are located inside the base (3).

6. A self-cooled brushless motor for an automotive cooling system according to claim 5, characterized in that: The outer surface of the rotating shaft (7) is fixedly fitted with a sleeve (10). The top of the sleeve (10) is fixedly connected to the lower middle surface of the front cover (1). The bottom of the sleeve (10) is fixedly connected to the upper middle surface of the base (3). The outer surfaces of both ends of the sleeve (10) are symmetrically fixedly connected with mounting rods (11). The three mounting rods (11) are set as a group.

7. A self-cooled brushless motor for an automotive cooling system according to claim 6, characterized in that: The inner surface of the mounting rod (11) is slidably connected to a slide rod (12) through a reserved slide groove. A first roller (13) is rotatably sleeved on the bottom outer surface of the slide rod (12), and a second roller (14) is rotatably sleeved on the top outer surface of the slide rod (12). The bottom of the first roller (13) is set to be conical. A first plug plate (15) is fixedly sleeved on the middle part of the slide rod (12). A second plug plate (16) is elastically slidably inserted at both ends of the first plug plate (15). The first plug plate (15) and the second plug plate (16) are combined to form a ring.

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