Paint spraying and quick-drying device for brushless motor shell

By designing a fast-drying device for the brushless motor housing with a support mechanism and drying components, and utilizing heated airflow and a guide shroud structure, the problems of slow and uneven paint drying speed on the brushless motor housing are solved, achieving a fast and uniform paint drying effect.

CN224114457UActive Publication Date: 2026-04-14CHANGZHOU ZEMING AUTO EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the current process of painting and drying the casing of brushless motors, natural air drying takes a long time, while high-speed airflow drying can easily lead to uneven paint surface and tear marks, affecting aesthetics and efficiency.

Method used

Design a quick-drying device that includes a support mechanism and a drying component. The device uses a heating wire to heat the airflow and guides it through a guide shroud, so that it gently acts on the inside and outside surface of the motor housing. The motor housing is fixed by a support rod to achieve rapid drying.

Benefits of technology

It speeds up the paint drying process, avoids uneven paint finish and streaks, and improves paint quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor production, in particular to a brushless motor shell paint spraying quick-drying device which comprises a placing frame, a supporting mechanism and a drying assembly, the supporting mechanism is fixedly arranged on the inner side of the placing frame, the drying assembly is installed at the bottom of the supporting mechanism, and the supporting mechanism comprises a layer plate, a supporting rod, a baffle ring and a flow guide cover. The shelf board is fixedly arranged on the inner side of the placement frame, the supporting rod is fixedly arranged at the top of the shelf board, the baffle ring is fixed to the top of the shelf board, and the flow guide cover is fixedly arranged at the bottom of the shelf board. The heated airflow acts on the interior of the shell to enable the temperature of the shell to rise, so that the drying speed of paint on the surface of the shell is increased, the airflow is guided after being reflected in the motor shell, warm air acts on the outer surface of the shell mildly after being guided, and the drying speed is further increased.
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Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a quick-drying device for spray painting on brushless motor housings. Background Technology

[0002] A brushless motor is a type of DC motor that uses electronic commutation technology to replace traditional mechanical commutators and carbon brushes. This type of motor uses an electronic controller to commutate the current, thereby driving the motor, without the need for traditional brushes and commutators.

[0003] The exterior of the brushless motor housing needs to be painted, mainly for anti-oxidation, anti-rust, and aesthetic purposes. After painting, it needs to be dried. Existing drying methods include natural air drying and using high-speed airflow to act on the motor paint surface to increase the evaporation rate and speed up the drying of the paint on the motor surface. However, high-speed airflow acting on the motor surface can easily cause tear marks or runs on the paint surface, and it can also affect the uniformity, smoothness, and gloss of the paint surface. Air drying takes a lot of time, so a quick-drying device is needed to effectively and gently improve the drying speed of the paint surface. Utility Model Content

[0004] This utility model addresses the deficiencies in the prior art by providing a quick-drying paint spraying device for brushless motor housings.

[0005] This utility model is achieved through the following technical solution:

[0006] A brushless motor housing spray painting quick-drying device includes a placement rack, a support mechanism, and a drying assembly. The support mechanism is fixedly disposed inside the placement rack, and the drying assembly is installed at the bottom of the support mechanism. The support mechanism includes a shelf, a support rod, a retaining ring, and a flow guide. The shelf is fixedly disposed inside the placement rack, the support rod is fixedly disposed at the top of the shelf, the retaining ring is fixed to the top of the shelf, and the flow guide is fixedly disposed at the bottom of the shelf. The drying assembly includes a mounting plate, an air outlet pipe, a connecting pipe, an air inlet pipe, and a heating wire. The mounting plate is fixed to the inside of the placement rack, the air outlet pipe is fixed to the mounting plate, the connecting pipe is fixed to the bottom of the air outlet pipe, the air inlet pipe is fixed to the end of the connecting pipe, and the heating wire is installed at the top of the mounting plate.

[0007] In a preferred embodiment of the present invention, ventilation holes are provided on the surface of the shelf, a retaining ring is fixedly disposed on the top outer side of the ventilation holes on the surface of the shelf, and a flow guide is located on the bottom outer side of the ventilation holes.

[0008] The ventilation holes facilitate airflow into the motor housing, the retaining ring prevents dripping paint from flowing into the ventilation holes, and the air guide shroud guides the airflow inside the motor housing. After the airflow speed is reduced, it acts more gently on the surface of the motor housing, thereby achieving a drying effect.

[0009] In a preferred embodiment of this utility model, the air outlet pipe and the heating wire are installed in the ventilation holes on the surface of the shelf, the surface of the air outlet pipe has an air outlet hole that is inclined downward, and the heating wire is sleeved on the outside of the air outlet pipe.

[0010] The gas ejected from the surface of the air outlet is heated by the heating wire and then acts on the inside of the motor housing, thereby raising the temperature of the motor housing.

[0011] In a preferred embodiment of this utility model, the support rod is disposed outside the ventilation hole on the surface of the shelf, and the top of the support rod has a tapered structure;

[0012] The tapered support rod at the top facilitates the fixed support of the motor housing.

[0013] In a preferred embodiment of the present invention, a flow guide groove is provided on the surface of the layer plate, and one end of the flow guide groove at the top of the layer plate extends to the edge of the layer plate.

[0014] The beneficial effects of this utility model are:

[0015] The brushless motor housing paint drying device supports the painted motor housing, heats the inside of the housing, and introduces airflow. The heated airflow acts on the inside of the housing, raising the housing temperature and thus accelerating the drying speed of the paint on the housing surface. After the airflow is reflected inside the motor housing, it is guided so that the warm air is guided and acts on the outer surface of the housing more gently, further accelerating the drying speed. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the brushless motor housing paint quick-drying device of this utility model.

[0017] Figure 2 This is a schematic diagram of the main structure of the brushless motor housing paint quick-drying device of this utility model.

[0018] Figure 3 This is a schematic diagram of the support mechanism structure of the brushless motor housing paint quick-drying device of this utility model.

[0019] Figure 4 This is a schematic diagram of the drying component structure of the brushless motor housing paint quick-drying device of this utility model.

[0020] In the diagram: 1. Placement rack; 2. Support mechanism; 21. Shelf; 22. Support rod; 23. Baffle ring; 24. Air guide hood; 3. Drying assembly; 31. Mounting plate; 32. Air outlet duct; 33. Connecting pipe; 34. Air inlet duct; 35. Heating wire. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0022] like Figure 1-4 The brushless motor housing spray painting quick-drying device shown includes a placement rack 1, a support mechanism 2, and a drying component 3. The support mechanism 2 is fixedly installed inside the placement rack 1, and the drying component 3 is installed at the bottom of the support mechanism 2. The support mechanism 2 includes a shelf 21, a support rod 22, a retaining ring 23, and a guide shroud 24. The shelf 21 is fixedly installed inside the placement rack 1, the support rod 22 is fixedly installed at the top of the shelf 21, the retaining ring 23 is fixed to the top of the shelf 21, and the guide shroud 24 is fixedly installed at the bottom of the shelf 21. The drying component 3 includes a mounting plate 31, an air outlet pipe 32, a connecting pipe 33, an air inlet pipe 34, and a heating wire 35. The mounting plate 31 is fixed to the inside of the placement rack 1, the air outlet pipe 32 is fixed to the mounting plate 31, the connecting pipe 33 is fixed to the bottom of the air outlet pipe 32, the air inlet pipe 34 is fixed to the end of the connecting pipe 33, and the heating wire 35 is installed at the top of the mounting plate 31.

[0023] Specifically, ventilation holes are provided on the surface of the shelf 21, the baffle ring 23 is fixedly installed on the top outer side of the ventilation holes on the surface of the shelf 21, the air guide hood 24 is located on the bottom outer side of the ventilation holes, the air outlet pipe 32 and the heating wire 35 are installed in the ventilation holes on the surface of the shelf 21, the air outlet pipe 32 has an inclined downward air outlet hole on its surface, the heating wire 35 is sleeved on the outside of the air outlet pipe 32, the support rod 22 is installed outside the ventilation holes on the surface of the shelf 21, the top of the support rod 22 has a conical structure, the shelf 21 has a guide groove on its surface, and one end of the guide groove at the top of the shelf 21 extends to the edge of the shelf 21.

[0024] In this embodiment, the painted motor housing is first mounted on top of the support rod 22. The top of the support rod 22 is inserted into the mounting hole at the end of the motor housing. Since the top of the support rod 22 has a conical structure, it can ensure that the motor housing is supported vertically. At this time, the heating wire 35 and the air outlet pipe 32 will be locked inside the motor housing. Then, a high-pressure air source is introduced into the air inlet at the end of the air inlet pipe 34, so that after the orifice passes through the connecting pipe 33, it is sprayed out from the air outlet on the surface of the air outlet pipe 32, and the heating wire 35 is activated. In this way, the airflow is heated by the heating wire 35 and acts on the inside of the housing, thereby increasing the temperature of the housing and making the paint on the surface of the housing dry faster through heating.

[0025] Furthermore, after the airflow acts on the inside of the shell, due to the relatively closed nature of the shell, the airflow will be blocked and ejected from the bottom of the shell. After being guided by the flow guide shroud 24, the warm and slow-moving airflow acts on the lower shell surface, thereby allowing the paint on the shell surface to dry quickly through the warm and fast-moving airflow. There is a possibility that the paint on the shell surface may drip, and the baffle ring 23 prevents the paint from dripping into the ventilation holes on the surface of the shelf 21. The flow guide groove opened on the surface of the shelf 21 guides the dripping paint, which facilitates the collection of waste paint.

[0026] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0027] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A kind of brushless motor casing paint spraying quick drying device, including placing rack (1), support mechanism (2) and drying assembly (3), it is characterized by: The support mechanism (2) is fixedly installed inside the placement rack (1), and the drying component (3) is installed at the bottom of the support mechanism (2); The support mechanism (2) includes a shelf (21), a support rod (22), a retaining ring (23), and a flow guide (24). The shelf (21) is fixedly installed inside the placement frame (1), the support rod (22) is fixedly installed on the top of the shelf (21), the retaining ring (23) is fixed to the top of the shelf (21), and the flow guide (24) is fixedly installed at the bottom of the shelf (21). The drying assembly (3) includes a mounting plate (31), an air outlet pipe (32), a connecting pipe (33), an air inlet pipe (34), and a heating wire (35). The mounting plate (31) is fixed to the inside of the placement rack (1), the air outlet pipe (32) is fixed to the mounting plate (31), the connecting pipe (33) is fixed to the bottom of the air outlet pipe (32), the air inlet pipe (34) is fixed to the end of the connecting pipe (33), and the heating wire (35) is installed on the top of the mounting plate (31).

2. The brushless motor housing paint quick-drying device according to claim 1, characterized in that: Ventilation holes are provided on the surface of the shelf (21), and the baffle ring (23) is fixedly installed on the top outer side of the ventilation holes on the surface of the shelf (21), and the flow guide (24) is located on the bottom outer side of the ventilation holes.

3. The brushless motor housing paint quick-drying device according to claim 2, characterized in that: The air outlet pipe (32) and heating wire (35) are installed in the ventilation holes on the surface of the shelf (21). The air outlet pipe (32) has downwardly inclined air outlet holes on its surface, and the heating wire (35) is sleeved on the outside of the air outlet pipe (32).

4. The brushless motor housing paint quick-drying device according to claim 1, characterized in that: The support rod (22) is located outside the ventilation hole on the surface of the shelf (21), and the top of the support rod (22) is tapered.

5. The brushless motor housing paint quick-drying device according to claim 1, characterized in that: The surface of the layer plate (21) is provided with a flow guide groove, and one end of the flow guide groove at the top of the layer plate (21) extends to the edge of the layer plate (21).