Improved motor rear cover

Abstract

The utility model relates to the technical field of motors, in particular to an improved rear cover of a motor, which comprises a cover body internally provided with an assembly space, a carbon brush assembly arranged in the cover body and used for conducting current, an anti-interference inductor and an anti-interference capacitor, the outer bottom surface of the cover body is provided with an assembly groove which is concavely arranged inwards, and the inductor and the capacitor are respectively assembled in the assembly groove. The utility model has the advantages that the capacitor and the inductor are arranged on the outer bottom surface of the cover body, so that the small-sized motor can also use the important electronic elements; and the capacitor and the inductor are arranged outside the motor cover body, so that heat dissipation can be better carried out, the problem that the capacitor bursts and burns the motor and is difficult to maintain is solved, the safety and the stability of the motor are improved, when the capacitor and the inductor break down, replacement and maintenance can be easier, the maintenance difficulty and the maintenance cost are reduced, and the internal design of the motor is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an improved motor rear cover. Background Art

[0002] A motor is an electromagnetic device based on the law of electromagnetic induction, with various classifications and application scenarios. It is an important device indispensable in modern industry and life. A motor is mainly a device that converts electrical energy into mechanical energy. Its working principle is to use a current-carrying coil to generate a rotating magnetic field and act on the rotor to form a magnetoelectric dynamic rotating torque, thereby making the motor rotate.

[0003] Capacitors and inductors are important electronic components in motors. Capacitors and inductors can reduce electromagnetic interference in the motor circuit, thereby protecting other electronic devices from interference and making the electrical equipment around the motor more stable. Commonly seen motors on the market all set the inductors and capacitors inside the motor rear cover. The internal accommodation space of the rear cover of smaller-sized motors is limited, and the capacitors and inductors cannot be assembled inside the motor rear cover, resulting in smaller-sized motors being unable to use capacitors and inductors for anti-interference. Therefore, the prior art needs to be further improved. Summary of the Invention

[0004] The purpose of the utility model is to provide an improved motor rear cover designed to solve at least one technical problem in the background art.

[0005] To achieve the above purpose, the utility model adopts the following scheme: an improved motor rear cover, including a cover body with an assembly space inside, a carbon brush assembly arranged inside the cover body for conducting current, an inductor for anti-interference, and a capacitor for anti-interference. The outer bottom surface of the cover body has an inwardly concave assembly groove, and the inductor and the capacitor are respectively assembled in the assembly groove.

[0006] Among them, the assembly groove includes a first assembly groove and a second assembly groove. The first assembly groove is arranged at one end of the outer bottom surface of the cover body, and the second assembly groove is arranged at the other end of the outer bottom surface of the cover body.

[0007] Among them, the inductor is assembled in the first assembly groove, and the capacitor is assembled in the second assembly groove.

[0008] Among them, a carbon brush capacitor for further anti-interference is arranged inside the cover body, and the carbon brush capacitor is arranged on one side of the carbon brush assembly.

[0009] Among them, a limiting post for preventing the carbon brush capacitor from deviating from the working position is also arranged inside the cover body, and the limiting post is arranged opposite to the carbon brush capacitor.

[0010] Wherein, the cover body has a bearing seat protruding downward from the inner bottom surface of the cover body, and a bearing is assembled in the bearing seat.

[0011] Wherein, there is an insertion plate hole penetrating between the carbon brush assembly and the side wall of the cover body, an insertion plate is inserted into the insertion plate hole and at least part of the insertion plate is exposed outside the bottom surface of the cover body.

[0012] Wherein, a plane portion for fixing the insertion piece by cooperation is arranged on one side of the side wall of the bearing seat facing the insertion plate.

[0013] Wherein, through holes for heat dissipation are further arranged on the cover body.

[0014] Wherein, there are two groups of the through holes, and the two groups of through holes are arranged diagonally.

[0015] The advantages of the present utility model are as follows: It includes a cover body with an assembly space at the top, a carbon brush assembly for conducting current arranged inside the cover body, an inductor for anti-interference, and a capacitor for anti-interference. The outer bottom surface of the cover body has an assembly groove recessed inward, and the inductor and the capacitor are respectively assembled in the assembly groove. Arranging the capacitor and the inductor on the outer bottom surface of the cover body enables small motors to also use these important electronic components. Moreover, since the capacitor and the inductor are arranged outside the motor cover, heat dissipation can be better carried out, avoiding the problem of difficult motor maintenance caused by capacitor explosion and burning. The safety and stability of the motor are improved. When the capacitor and the inductor fail, they can be replaced and repaired more easily, reducing the maintenance difficulty and cost, and making the design inside the motor more concise, which is beneficial to the optimization and layout of the circuit and convenient for production and maintenance. Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the improved motor rear cover Figure 1 ;

[0017] Figure 2 is the structural schematic diagram of the improved motor rear cover Figure 2 ;

[0018] Figure 3 is the structural schematic diagram of the improved motor rear cover Figure 3 ;

[0019] Figure 4 is the structural schematic diagram of the improved motor rear cover Figure 4 . Detailed Embodiments

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, so as to visually and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0021] In the description of the present utility model, if it involves orientation description, such as the orientation or positional relationship indicated by "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model. When a certain feature is referred to as "arranged", "fixed", "connected" to another feature, it can be directly arranged, fixed, connected to another feature, or indirectly arranged, fixed, connected to another feature.

[0022] In the description of the present utility model, if it involves "several", its meaning is one or more; if it involves "multiple", its meaning is more than two; if it involves "greater than", "less than", "exceeding", it should be understood as not including the number itself; if it involves "above", "below", "within", it should be understood as including the number itself. If it involves "first", "second", it should be understood as used to distinguish technical features, rather than indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0023] In addition, unless otherwise defined, the technical terms and scientific terms used in the present utility model have the same meanings as those commonly understood by those skilled in the art to which the present utility model belongs. The terms used in the present utility model are only for describing specific embodiments, rather than limiting the present utility model. It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0024] Embodiment: As Figures 1-4As shown in the figure, the improved motor rear cover includes a cover body 1 with an assembly space inside, a carbon brush assembly 2 arranged inside the cover body for conducting current, an inductor for anti-interference, and a capacitor for anti-interference. The outer bottom surface of the cover body 1 has an assembly groove recessed inward. The inductor and the capacitor are respectively assembled in the assembly groove. Setting the capacitor and the inductor on the outer bottom surface of the cover body enables small motors to also use these important electronic components. And because the capacitor and the inductor are arranged outside the motor cover, better heat dissipation can be achieved, avoiding the problem of difficult motor repair caused by capacitor explosion and burning, improving the safety and stability of the motor. When the capacitor and the inductor fail, they can be replaced and repaired more easily, reducing the maintenance difficulty and cost, and making the design inside the motor more concise, which is beneficial to the optimization and layout of the circuit and convenient for production and maintenance.

[0025] Among them, the assembly groove includes a first assembly groove 15 and a second assembly groove 16. The first assembly groove 15 is arranged at one end of the outer bottom surface of the cover body 1, and the second assembly groove 16 is arranged at the other end of the outer bottom surface of the cover body 1. The inductor is assembled in the first assembly groove 15, and the capacitor is assembled in the second assembly groove 16. Separating the assembly of the capacitor and the inductor can ensure that they can each play their unique roles and provide stable support for the normal operation of the motor.

[0026] Among them, a carbon brush capacitor 3 for further anti-interference is arranged inside the cover body 1, and the carbon brush capacitor 3 is arranged on one side of the carbon brush assembly 2. Setting the carbon brush capacitor 3 can further anti-interference.

[0027] Among them, a limiting column 11 for preventing the carbon brush capacitor 3 from disengaging from the working position is also arranged inside the cover body 1. The limiting column 11 is arranged opposite to the carbon brush capacitor 3. Setting the limiting column for preventing the capacitor from disengaging from the working position can ensure that the capacitor is stably connected to the carbon brush assembly, avoiding additional vibration and friction inside the motor caused by capacitor loosening, reducing the risk of capacitor loosening, thereby reducing the maintenance cost of the motor, increasing the service life of the motor, and improving the performance and efficiency of the motor.

[0028] Among them, the cover body 1 has a bearing seat 12 protruding downward from the top surface of the cover body 1. The first assembly groove 15 is arranged on the cover body 1 and on one side of the bearing seat, and the second assembly groove 16 is arranged on the cover body 1 and on the other side of the bearing seat 12. A bearing is assembled in the bearing seat 12. The mass of the motor rotor is usually relatively large and requires a bearing to bear its weight so that it can roll and operate, thus ensuring the normal operation of the motor. The bearing forms a support between the motor rotor and the motor cover body by rolling or sliding.

[0029] Among them, there is an insertion plate hole 13 penetratingly arranged between the carbon brush assembly 2 and the side wall of the cover body 1. The insertion plate 131 is inserted into the insertion plate hole 13 and at least part of the insertion plate 131 is exposed from the bottom surface of the cover body 1. The arrangement of the insertion plate enables the installation of the insertion plate and the motor body.

[0030] Among them, on one side of the side wall of the bearing seat 12 facing the insertion plate 131, there is a flat portion 121 for cooperating with the insertion piece for fixation. The arrangement of the flat portion abuts against the insertion piece so that the insertion piece is not easily detached.

[0031] Among them, an insertion piece hole 14 for inserting the insertion piece is arranged between the bearing seat 12 and the insertion plate 13. The insertion piece is inserted into the insertion piece hole 14 and one end of the insertion piece abuts against the flat portion 121. The arrangement of the insertion piece hole makes the insertion piece even less likely to fall off.

[0032] Among them, through holes 17 for heat dissipation are further arranged on the cover body 1. There are two groups of the through holes 17, and the two groups of through holes 17 are arranged diagonally. The arrangement of the two groups of through holes can reduce the entry of foreign objects into the through holes and can reduce noise.

[0033] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art in the technical field disclosed by the present utility model can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present utility model, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An improved motor rear cover, comprising a cover body with an assembly space inside, a carbon brush assembly for conducting current arranged inside the cover body, an inductor for anti-interference, and a capacitor for anti-interference, characterized in that: The outer bottom surface of the cover body has an assembly groove which is concave inwards, and the inductor and the capacitor are respectively assembled in the assembly grooves.

2. The improved motor rear cover according to claim 1, characterized in that: The assembly groove comprises a first assembly groove and a second assembly groove. The first assembly groove is arranged at one end of the outer bottom surface of the cover body, and the second assembly groove is arranged at the other end of the outer bottom surface of the cover body.

3. The improved motor rear cover according to claim 2, characterized in that: The inductor is mounted in the first mounting groove, and the capacitor is mounted in the second mounting groove.

4. The improved motor rear cover according to claim 1, characterized in that: A carbon brush capacitor for further anti-interference is arranged inside the cover body, and the carbon brush capacitor is arranged on one side of the carbon brush assembly.

5. The improved motor rear cover according to claim 4, characterized in that: A limiting column for preventing the carbon brush capacitor from leaving the working position is also arranged inside the cover body, and the limiting column is arranged relative to the carbon brush capacitor.

6. The improved motor rear cover according to claim 1, characterized in that: The cover body has a bearing seat which is protruded downward from the inner bottom surface of the cover body, and a bearing is installed in the bearing seat.

7. The improved motor rear cover according to claim 6, characterized in that: A plug-in plate hole is provided between the carbon brush assembly and the side wall of the cover body, and the plug-in plate is inserted into the plug-in plate hole and at least part of the plug-in plate is exposed on the bottom surface of the cover body.

8. The improved motor rear cover according to claim 7, characterized in that: A plane portion for cooperating with the insert piece for fixing is arranged on a side of the side wall of the bearing seat facing the insert plate.

9. The improved motor rear cover according to any one of claims 1 to 8, characterized in that: The cover body is also provided with through holes for heat dissipation.

10. The improved motor rear cover according to claim 9, characterized in that: The through holes are provided in two groups, and the two groups of through holes are arranged diagonally.

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