Electric motor based on PCBA control board

Abstract

The utility model discloses an electric motor based on a PCBA control board, and relates to the technical field of motors. The carbon brush replacing device comprises the pushing mechanism, the clamping mechanism and the outer shell, the pushing mechanism comprises the square shell, the third sliding groove is formed in the back of the square shell, through the arrangement of the clamping mechanism, rapid replacement of a carbon brush is achieved, the problem that the carbon brush of an electric motor is difficult to replace is solved, a user can easily push out an old carbon brush through simple operation, and the carbon brush replacing efficiency is improved. A new carbon brush is rapidly installed in place, the replacement efficiency is improved, the maintenance cost is reduced, stable connection between the square shell and the outer shell is achieved, the overall structural strength and stability of the electric motor are improved, the pushing mechanism smears lubricating oil on the surface of the commutator, friction between the carbon brush and the commutator is effectively reduced, and the service life of the commutator is prolonged. Along with continuous grinding of the carbon brush, the sponge block can correspondingly move leftwards, and the wiping effect on the carbon powder on the surface of the commutator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an electric motor based on a PCBA control board. Background Art

[0002] An electric motor is a type of electric motor. It is a device that converts electrical energy into mechanical energy. It usually achieves rotation by generating torque in a magnetic field through electric current. In order to accurately control and adjust parameters such as the speed, direction, and torque of the electric motor to meet specific application requirements, some electric motors are also equipped with a PCBA control board. The PCBA control board is a printed circuit board with integrated electronic components that can be used to control the electric motor. However, when the rotor rotates at high speed, the friction between the commutator and the carbon brushes will also increase, causing the lubricant originally applied to the commutator surface to be quickly lost, and the friction between the commutator and the carbon brushes will become more intense, which will produce larger sparks and carbon dust, and the carbon brushes will also be worn away faster. The contact between sparks, carbon dust and the rotor can easily affect the performance of the brushed electric motor, and the carbon brushes will need to be replaced more frequently. At this time, a patent number "202410642006.2" is provided, which is based on a PCBA control board. The current patent number is "202410642006.2". An electric motor based on a PCBA control board includes a front cover, a rear cover detachably mounted on one end of the front cover, a magnet fixedly connected to the inner wall of the front cover, a rotor body rotatably mounted inside the front cover and the rear cover, a shaft connected to one end of the rotor body and a commutator mounted outside the rotor body. The inner wall of the rear cover is symmetrically provided with a conductive mechanism, and the surface of the commutator is intermittently coated with lubricating oil to reduce the friction between the carbon brush and the commutator, reduce the sparks generated between the carbon brush and the commutator, reduce the contact between the sparks and the rotor body, and less likely to affect the performance of the electric motor. The replacement cycle of the carbon brush will be extended, and the sponge block and the replacement The carbon brush maintains full contact with the commutator, fully wipes the carbon powder on the surface of the commutator, the carbon brush is continuously worn shorter, the sponge block will move to the left, and the uncontaminated part of the sponge block will contact the commutator, thereby improving the sponge block's wiping effect on the carbon powder on the commutator surface. However, the patent number "202410642006.2" is an electric motor based on a PCBA control board. There are still defects. Among them, since the square shell needs to be fixedly connected to the outer shell, when the carbon brush inside the square shell needs to be replaced, the distance between the outer shell and the commutator is small, and the new carbon brush is long and difficult to put into the square shell. During installation, the new carbon brush is easily squeezed and rubbed with the commutator, causing damage to the new carbon brush or the commutator, and the old carbon brush is pressed tightly against the commutator surface by the spring and is difficult to remove. Utility Model Content

[0003] Based on this, the purpose of the present invention is to provide an electric motor based on a PCBA control board to solve the technical problems of difficulty in replacing carbon brushes and easy damage to new carbon brushes or commutator during replacement, while the old carbon brushes are difficult to remove.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: an electric motor based on a PCBA control board, comprising a pushing mechanism, a clamping mechanism, and a housing, wherein the pushing mechanism comprises a square housing, a third slide groove is provided on the back of the square housing, the third slide groove is engaged and slidably engaged with a side plate, and a first clamping groove is provided on one side of the side plate;

[0005] The clamping mechanism includes a second sliding groove, a spring sleeve rod is provided inside the second sliding groove, a slider is provided at one end of the spring sleeve rod, a first clamping block is provided on one side of the slider, and the first clamping block is adapted to the first clamping groove;

[0006] A second clamping block is provided on one side of the square shell, a fixing block is provided on the inner wall of the outer shell, a second clamping groove is provided on the outer surface of the fixing block, and the second clamping block is adapted to the second clamping groove.

[0007] By adopting the above technical solution, the square shell serves as the main supporting structure of the pushing mechanism, and the square shell provides a stable internal space to protect the internal components from interference from the external environment.

[0008] Furthermore, two third sliding grooves are provided, and two third sliding grooves are symmetrically provided along the central axis of the square shell.

[0009] By adopting the above technical solution, the symmetrical third slide groove helps to maintain the balance of the component during movement, reduces friction and wear caused by offset or shaking, and thus improves the stability and durability of the entire structure.

[0010] Furthermore, the spring sleeve rods are provided in two groups, and each group has two spring sleeve rods.

[0011] By adopting the above technical solution, each group of two spring sleeve rods are symmetrical to each other, which can provide uniform supporting force and prevent structural instability caused by failure of a single supporting point.

[0012] Furthermore, a first sliding groove is provided on the outer surface of the square shell, a first spring is provided inside the square shell, one end of the first spring is fixedly connected to a push plate, and a carbon brush is provided on one side of the push plate.

[0013] By adopting the above technical solution, the push plate is the core component of the pushing mechanism, which is responsible for converting the elastic force into a pushing force on the carbon brush, thereby achieving close contact or rapid replacement of the carbon brush and the commutator.

[0014] Furthermore, a connecting rod is fixedly connected to one side of the push plate, a push rod is provided at one end of the connecting rod, and an oil filling pipe is provided at one end of the push rod.

[0015] By adopting the above technical solution, the connecting rod transmits the power of the push plate to the push rod, so that the movement of the push rod is indirectly controlled by the push plate, thereby achieving effective transmission and amplification of power.

[0016] Furthermore, a pull rope is provided on one side of the connecting rod, one end of the pull rope is fixedly connected to a fixing plate, and one end of the fixing plate is fixedly connected to the oil filling pipe.

[0017] By adopting the above technical solution, the oil filling pipe can easily inject lubricating oil into the interior of the electric motor, and the lubrication operation can be achieved without removing the motor housing.

[0018] Furthermore, an L-shaped tube is provided on the back of the fixing plate, a second spring is provided at one end of the L-shaped tube, and a sponge block is provided at one end of the second spring.

[0019] By adopting the above technical solution, the L-shaped tube provides a stable guiding path for the sponge block, ensuring that the sponge block can maintain a certain track and direction during use.

[0020] Furthermore, a support frame is fixedly connected to one side of the fixing block, and a mounting groove is provided inside the support frame.

[0021] By adopting the above technical solution, the support frame provides a solid support platform for the key components inside the electric motor. This support helps to maintain a stable position during operation, reduce vibration and noise, and improve the operating efficiency of the electric motor.

[0022] Furthermore, a commutator is provided inside the housing, and the commutator is adapted to the carbon brush.

[0023] By adopting the above technical solution, the commutator is a key component in the electric motor, which is responsible for changing the direction of the current so that the motor can continue to rotate.

[0024] In summary, the present invention has the following beneficial effects:

[0025] 1. This utility model realizes the rapid replacement of carbon brushes by setting a clamping mechanism, which solves the problem of difficult replacement of carbon brushes in electric motors. Users can easily push out the old carbon brushes and quickly install the new carbon brushes in place through simple operations, which greatly improves the replacement efficiency and reduces maintenance costs. It also realizes a stable connection between the square shell and the outer shell, improves the overall structural strength and stability of the electric motor, and ensures that the electric motor will not loosen or shake during operation.

[0026] 2. The utility model provides a pushing mechanism and applies lubricating oil to the commutator surface, thereby effectively reducing the friction between the carbon brush and the commutator. As the carbon brush is continuously worn shorter, the sponge block will move left accordingly, ensuring that the uncontaminated part of the sponge block is always in contact with the commutator, thereby improving the wiping effect of carbon powder on the commutator surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the pushing mechanism of the utility model;

[0028] Figure 2 This is a partial cross-sectional structural diagram of the push mechanism of the utility model;

[0029] Figure 3 This is a partial cross-sectional structural diagram of the electric motor of the present utility model;

[0030] Figure 4 It is a schematic diagram of the planar structure of the pushing mechanism of the utility model.

[0031] In the figure: 1. Pushing mechanism; 101. Square shell; 102. First slide; 103. First spring; 104. Push plate; 105. Connecting rod; 106. Push rod; 107. Oil filling pipe; 108. Pull rope; 109. Fixed plate; 110. L-shaped tube; 111. Second spring; 112. Sponge block; 2. Clamping mechanism; 201. Second slide; 202. Spring sleeve rod; 203. Slider; 204. First clamping block; 205. First clamping groove; 206. Third slide; 207. Side plate; 208. Second clamping block; 3. Shell; 4. Fixed block; 5. Second clamping groove; 6. Mounting groove; 7. Carbon brush; 8. Commutator; 9. Support frame. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] The following describes an embodiment of the present invention based on its overall structure.

[0034] An electric motor based on a PCBA control board, such as Figure 1-Figure 4 As shown, it includes a pushing mechanism 1, a clamping mechanism 2 and a housing 3. The pushing mechanism 1 includes a square housing 101. A third sliding groove 206 is provided on the back of the square housing 101. The third sliding groove 206 is engaged and slidably engaged with a side plate 207. A first clamping groove 205 is provided on one side of the side plate 207.

[0035] The clamping mechanism 2 includes a second chute 201, a spring sleeve rod 202 is provided inside the second chute 201, a slider 203 is provided at one end of the spring sleeve rod 202, and a first clamping block 204 is provided on one side of the slider 203. The first clamping block 204 is adapted to the first clamping groove 205;

[0036] A second clamping block 208 is provided on one side of the square shell 101, and a fixing block 4 is provided on the inner wall of the outer shell 3. A second clamping groove 5 is provided on the outer surface of the fixing block 4. The second clamping block 208 and the second clamping groove 5 are adapted to each other. The square shell 101 serves as the main supporting structure of the pushing mechanism 1. The square shell 101 provides a stable internal space to protect the internal components from interference from the external environment. The side panel 207 realizes the function of disassembling and replacing the carbon brush 7 by sliding in the third slide groove 206, which is simple and efficient to operate.

[0037] See Figure 1 There are two third slide grooves 206, and the two third slide grooves 206 are symmetrically arranged along the central axis of the square shell 101. The symmetrical third slide grooves 206 help to maintain the balance of the components during movement, reduce friction and wear caused by offset or shaking, thereby improving the stability and durability of the entire structure. The third slide grooves 206 are part of the power transmission path. The symmetrically arranged third slide grooves 206 can ensure that the power remains uniform and stable during the transmission process, reduce energy loss, and improve power transmission efficiency.

[0038] See Figure 1 There are two groups of spring rods 202, each group of spring rods 202 is provided with two, and each group of two spring rods 202 is symmetrical to each other, which can provide uniform supporting force and prevent structural instability caused by failure of a single support point. The setting of multiple groups of spring rods 202 makes the internal structure of the entire electric motor more stable.

[0039] See Figure 1 、 Figure 2 A first slide groove 102 is provided on the outer surface of the square shell 101, and a first spring 103 is provided inside the square shell 101. One end of the first spring 103 is fixedly connected to a push plate 104, and a carbon brush 7 is provided on one side of the push plate 104. The push plate 104 is the core component of the pushing mechanism 1, which is responsible for converting the elastic force into a pushing force on the carbon brush 7, thereby achieving close contact or quick replacement of the carbon brush 7 and the commutator 8. As a key conductive component in the electric motor, the carbon brush 7 can transfer current from the stationary part to the rotating part, thereby realizing the conversion and transmission of electrical energy.

[0040] See Figure 1 、 Figure 2One side of the push plate 104 is fixedly connected to a connecting rod 105, one end of the connecting rod 105 is provided with a push rod 106, and one end of the push rod 106 is provided with an oil filling pipe 107. The connecting rod 105 transmits the power of the push plate 104 to the push rod 106, so that the movement of the push rod 106 is indirectly controlled by the push plate 104, thereby realizing effective transmission and amplification of power. One end of the push rod 106 is provided with an oil filling pipe 107, so that the push rod 106 can realize lubrication operation, thereby improving the versatility and practicality of the pushing mechanism 1.

[0041] See Figure 1 A pull rope 108 is provided on one side of the connecting rod 105, and one end of the pull rope 108 is fixedly connected to a fixing plate 109. One end of the fixing plate 109 is fixedly connected to the oil filling pipe 107. The oil filling pipe 107 can easily inject lubricating oil into the interior of the electric motor, and the lubrication operation can be achieved without removing the motor casing. The fixing plate 109 also plays a certain supporting role, providing a stable support platform for other components in the pushing mechanism 1, which helps to maintain its correct working position.

[0042] See Figure 1 An L-shaped tube 110 is provided on the back of the fixed plate 109, one end of the L-shaped tube 110 is provided with a second spring 111, and one end of the second spring 111 is provided with a sponge block 112. The L-shaped tube 110 provides a stable guide path for the sponge block 112 to ensure that the sponge block 112 can maintain a certain trajectory and direction during use. The second spring 111 serves as an elastic element and can provide automatic restoring force when the sponge block 112 is subjected to external force.

[0043] See Figure 3 A support frame 9 is fixedly connected to one side of the fixed block 4, and a mounting groove 6 is provided inside the support frame 9. The support frame 9 provides a solid support platform for the key components inside the electric motor. This support helps to maintain a stable position during operation, reduce vibration and noise, and improve the operating efficiency of the electric motor. The mounting groove 6 enables the square shell 101 to be accurately installed in the specified position, ensuring the relative position and matching accuracy between the components and improving the overall performance of the electric motor.

[0044] See Figure 1 、 Figure 3 A commutator 8 is provided inside the housing 3. The commutator 8 is adapted to the carbon brush 7. The commutator 8 is a key component in the electric motor. It is responsible for changing the direction of the current so that the motor can rotate continuously. The housing 3 serves as a protective layer for the electric motor. It can effectively prevent external dust, moisture and other impurities from entering the motor, protecting the precision components inside the motor from damage, thereby ensuring the stable operation of the electric motor and extending its service life.

[0045] The implementation principle of the present utility model is as follows: first, when the carbon brush 7 needs to be replaced, the square shell 101 can be taken out from the inside of the installation groove 6, and then the slider 203 is moved in the direction of the spring sleeve rod 202 and the side plate 207 is pushed to make the side plate 207 slide out from the third sliding groove 206, and then the old carbon brush 7 can be taken out, and the push plate 104 is pressed down to replace the new carbon brush 7, and then the slider 203 is moved again and the side plate 207 is pushed into the third sliding groove 206, and the side plate 207 is continuously pushed to make the first clamping block 204 clamped with the first clamping groove 205, and then the square shell 101 is placed in the installation groove 6 and the second clamping block 208 is clamped with the second clamping groove 5.

[0046] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An electric motor based on a PCBA control board, characterized by: The invention comprises a pushing mechanism (1), a clamping mechanism (2) and a shell (3), wherein the pushing mechanism (1) comprises a square shell (101), a third sliding groove (206) is provided on the back of the square shell (101), a side plate (207) is slidably engaged with the third sliding groove (206), and a first clamping groove (205) is provided on one side of the side plate (207); The clamping mechanism (2) comprises a second sliding groove (201), a spring sleeve rod (202) is provided inside the second sliding groove (201), a slider (203) is provided at one end of the spring sleeve rod (202), a first clamping block (204) is provided on one side of the slider (203), and the first clamping block (204) is adapted to the first clamping groove (205); A second clamping block (208) is provided on one side of the square shell (101), a fixing block (4) is provided on the inner wall of the outer shell (3), a second clamping groove (5) is provided on the outer surface of the fixing block (4), and the second clamping block (208) and the second clamping groove (5) are adapted to each other.

2. The electric motor based on the PCBA control board according to claim 1, characterized in that: Two third sliding grooves (206) are provided, and the two third sliding grooves (206) are symmetrically provided along the central axis of the square shell (101).

3. The electric motor based on the PCBA control board according to claim 1, characterized in that: The spring sleeve rods (202) are provided in two groups, and each group of the spring sleeve rods (202) is provided with two.

4. The electric motor based on the PCBA control board according to claim 1, characterized in that: A first sliding groove (102) is provided on the outer surface of the square shell (101), a first spring (103) is provided inside the square shell (101), one end of the first spring (103) is fixedly connected to a push plate (104), and a carbon brush (7) is provided on one side of the push plate (104).

5. The electric motor based on the PCBA control board according to claim 4, characterized in that: A connecting rod (105) is fixedly connected to one side of the push plate (104), a push rod (106) is provided at one end of the connecting rod (105), and an oil injection pipe (107) is provided at one end of the push rod (106).

6. The electric motor based on the PCBA control board according to claim 5, characterized in that: A pull rope (108) is provided on one side of the connecting rod (105), one end of the pull rope (108) is fixedly connected to a fixing plate (109), and one end of the fixing plate (109) is fixedly connected to the oil filling pipe (107).

7. The electric motor based on the PCBA control board according to claim 6, characterized in that: An L-shaped tube (110) is provided on the back of the fixing plate (109), a second spring (111) is provided at one end of the L-shaped tube (110), and a sponge block (112) is provided at one end of the second spring (111).

8. The electric motor based on the PCBA control board according to claim 1, characterized in that: A support frame (9) is fixedly connected to one side of the fixed block (4), and a mounting groove (6) is provided inside the support frame (9).

9. The electric motor based on the PCBA control board according to claim 1, characterized in that: A commutator (8) is provided inside the housing (3), and the commutator (8) is adapted to the carbon brush (7).

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