Motor with waterproof, dustproof and corrosion-proof structure for circuit board

Abstract

The utility model provides a kind of motor with circuit board waterproof dustproof anticorrosive structure, including circuit board, flat cable, base, stator shell and rotor;Stator shell is fixed in the front side of base, rotor is rotatably connected in the inboard of stator shell, the front end of rotor is protruding from stator shell, the rear end of rotor is rotatably connected with base;Base is injection molded by plastic material, circuit board is annular, circuit board is plastic encapsulated in the inside of base;Socket is provided on the side wall of base, the group of conductive pins on circuit board is inserted in socket, one end of flat cable is matched with the group of conductive pins and is electrically connected by plug-in connection through socket;The utility model can avoid circuit board to be damp, corrosion and other conditions, that is, can effectively avoid the short-circuit burning condition of circuit board, improve the service life of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically, to a motor with a circuit board structure that is waterproof, dustproof, and corrosion resistant. Background Technology

[0002] An electric motor is a drive component used to convert electrical energy into mechanical energy. Currently, electric motors on the market mainly consist of a base, a stator housing, and a rotor. The stator housing is fixed to the front side of the base, and the rotor is rotatably connected to the inside of the stator housing. The front end of the rotor extends out of the stator housing, and the rear end of the rotor is rotatably connected to the base. In addition, a circuit board is fixed to the inside of the base. The stator windings located inside the stator housing are electrically connected to the circuit board, which is in turn electrically connected to the ribbon cable. The circuit board is used to receive electrical signals from the ribbon cable and to control the rotor's speed or rotation angle. However, in the above-mentioned existing motor structure, the circuit board is exposed to the air inside the motor. When dust and moisture from the external environment enter the motor, the circuit board will be covered by dust, and the circuit board may short-circuit and burn out due to moisture and corrosion, which will affect the service life of the motor. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a motor with a waterproof, dustproof and corrosion-resistant circuit board structure, which can prevent the circuit board from getting damp and corroded, thus effectively preventing the circuit board from short-circuiting and burning out, and improving the service life of the motor.

[0004] This utility model provides a motor with a waterproof, dustproof, and corrosion-resistant circuit board structure, including a circuit board, a ribbon cable, a base, a stator housing, and a rotor. The stator housing is fixed to the front side of the base, and the rotor is rotatably connected to the inner side of the stator housing. The front end of the rotor extends out of the stator housing, and the rear end of the rotor is rotatably connected to the base. The base is injection molded from plastic material, and the circuit board is ring-shaped and encapsulated inside the base. A socket is provided on the side wall of the base, and the conductive pin group on the circuit board extends into the socket. One end of the ribbon cable is plugged into and electrically connected to the conductive pin group through the socket.

[0005] This invention, by encapsulating the circuit board inside the base, prevents the circuit board from coming into contact with air, thus preventing dust from covering the circuit board and preventing the circuit board from getting damp or corroded. This effectively prevents the circuit board from short-circuiting and burning out, and improves the service life of the motor.

[0006] In one possible implementation, a bearing is embedded in the middle of the base, and the rear end of the rotor is inserted into the bearing and rotates with the base through the bearing. A cover is connected to the middle of the rear side of the base, which is used to shield the bearing. The outer edge of the cover is in close contact with the base located circumferentially outside the bearing. After the bearing is embedded in the middle of the base, the rear end of the rotor can be reliably rotated with the base through the bearing. The cover shields the bearing, and since the outer edge of the cover is in close contact with the base located circumferentially outside the bearing, it can effectively prevent dust and moisture from entering the bearing. This achieves dustproof, waterproof, and corrosion-proof functions for the bearing, improves the reliability and service life of the bearing, and thus extends the service life of the motor.

[0007] In one possible implementation, the front side of the cover is provided with several circumferentially distributed plugs, and the rear side of the base is provided with plug holes corresponding to the plugs. Each plug is inserted into the corresponding plug hole and fits tightly with the plug hole. With this structure, after each plug is engaged with the corresponding plug hole, the cover can be reliably assembled with the base, which has the advantage of convenient assembly of the cover and the base.

[0008] In one possible implementation, the outer wall of the base is provided with several lugs circumferentially, and each lug has a fixing hole in the middle. With this structure, when the motor needs to be fixed to other components, the bolt shank can be passed through the fixing hole and the lug can be fixed to other components, thereby reliably fixing the motor to other components. Attached Figure Description

[0009] Figure 1 This is the first three-dimensional structural schematic diagram of the present invention;

[0010] Figure 2 This is a second three-dimensional structural schematic diagram of the present invention;

[0011] Figure 3 This is a partially exploded three-dimensional structural diagram of the present invention;

[0012] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover. Detailed Implementation

[0013] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0014] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0015] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0016] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] See Figure 1-4 As shown in the figure, this application discloses a motor with a waterproof, dustproof and corrosion-resistant circuit board structure, including a circuit board, a ribbon cable 1, a base 2, a stator housing 3 and a rotor 4; the stator housing 3 is fixed to the front side of the base 2, the rotor 4 is rotatably connected to the inner side of the stator housing 3, the front end of the rotor 4 extends out of the stator housing 3, and the rear end of the rotor 4 is rotatably connected to the base 2; the base 2 is injection molded from plastic material, the circuit board is ring-shaped, and the circuit board is encapsulated inside the base 2; a socket 21 is provided on the side wall of the base 2, the conductive pin group on the circuit board extends into the socket 21, and one end of the ribbon cable 1 is connected to the conductive pin group through the socket 21.

[0018] A bearing 5 is embedded in the middle of the base 2, and the rear end of the rotor 4 is inserted into the bearing 5 and rotates with the base 2 through the bearing 5. A cover 6 is connected to the middle of the rear side of the base 2. The cover 6 is used to cover the bearing 5, and the outer edge of the cover 6 is in close contact with the base 2 located on the outer side of the bearing 5. After the bearing is embedded in the middle of the base, the rear end of the rotor can be reliably rotated and connected to the base through the bearing. With the cover, the cover can cover the bearing, and since the outer edge of the cover is in close contact with the base located on the outer side of the bearing, it can effectively prevent dust and moisture from entering the bearing. This can achieve the functions of dustproof, waterproof and anti-corrosion of the bearing, improve the reliability and service life of the bearing, and thus improve the service life of the motor.

[0019] The front side of the cover 6 is provided with several circumferentially distributed plug pins 61, and the rear side of the base 2 is provided with plug holes 22 corresponding to the plug pins 61. Each plug pin 61 is inserted into the corresponding plug hole 22 and is tightly fitted with the plug hole 22. With this structure, after each plug pin is engaged with the corresponding plug hole, the cover can be reliably assembled with the base, which has the advantage of convenient assembly of the cover and the base.

[0020] The outer wall of the base 2 is provided with several lugs 23 in the circumferential direction, and each lug 23 is provided with a fixing hole 24 in the middle. With this structure, when the motor needs to be fixed with other components, the screw part of the bolt can be passed through the fixing hole and the lug can be fixed on other components, so as to reliably fix the motor with other components.

[0021] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A motor with a circuit board that is waterproof, dustproof, and corrosion resistant, comprising a circuit board, a ribbon cable (1), a base (2), a stator housing (3), and a rotor (4); wherein the stator housing (3) is fixed to the front side of the base (2), the rotor (4) is rotatably connected to the inner side of the stator housing (3), the front end of the rotor (4) extends out of the stator housing (3), and the rear end of the rotor (4) is rotatably connected to the base (2); characterized in that: The base (2) is injection molded from plastic material. The circuit board is ring-shaped and is encapsulated inside the base (2). A socket (21) is provided on the side wall of the base (2). The conductive pin group on the circuit board extends into the socket (21). One end of the ribbon cable (1) is connected to the conductive pin group through the socket (21) and electrically connected.

2. The motor with a waterproof, dustproof, and corrosion-resistant circuit board structure according to claim 1, characterized in that: The base (2) has a bearing (5) embedded in the middle. The rear end of the rotor (4) is inserted into the bearing (5) and rotates with the base (2) through the bearing (5). A cover (6) is connected to the middle of the rear side of the base (2). The cover (6) is used to cover the bearing (5). The outer edge of the cover (6) is in close contact with the base (2) located on the outer side of the bearing (5).

3. The motor with a circuit board that is waterproof, dustproof, and corrosion-resistant, as described in claim 2, is characterized in that: The front side of the cover (6) is provided with a number of circumferentially distributed plug pins (61), and the rear side of the base (2) is provided with a socket (22) corresponding to the number of plug pins (61). Each plug pin (61) is inserted into the socket (22) at the corresponding position and is tightly fitted with the socket (22).

4. The motor with a circuit board waterproof, dustproof, and corrosion-resistant structure according to any one of claims 1-3, characterized in that: The outer wall of the base (2) is provided with a plurality of lugs (23) in the circumferential direction, and each lug (23) is provided with a fixing hole (24) in the middle.

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