Commutator KCC dovetail structure for automobile blower motor

Abstract

The utility model relates to the technical field of commutators, in particular to a commutator KCC dovetail structure for an automobile blower motor, which comprises a copper shell, an upper dovetail, a lower dovetail and a middle dovetail. According to the utility model, the bonding degree between the commutator segments and the bakelite powder is enhanced, and the tension of the commutator segments is increased; when the commutator operates in the motor, the roundness is more excellent, and the noise is reduced; on the other hand, the roundness performance is good, the consistency of the abrasion condition of the surfaces of the carbon brush and the copper bar is higher, the noise is lower under the long-term operation condition, and the problems that although a commutator structure in the prior art is widely applied to an automobile blower motor, certain noise can be generated in the actual working process, and the service life of the commutator is influenced are solved. And the riding experience of the driver is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a commutator technical field especially relates to a commutator KCC dovetail structure for automobile blower motor. BACKGROUND

[0002] In the field of automobile manufacturing, the blower motor is an important part of the automobile air conditioning system, which is a device for converting electrical energy into mechanical energy, and its performance directly affects the comfort of the driver and the overall quality of the automobile. Among the components of the automobile blower motor, the commutator is one of the important components. The commutator is a key component on the armature of a DC motor and an AC commutator motor. The structure design and performance optimization of the commutator are of great significance to improving the performance of the motor.

[0003] Although the traditional commutator structure is widely used in automobile blower motors, it will produce certain noise in the actual working process, affecting the riding experience of the driver. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a commutator KCC dovetail structure for automobile blower motor, which aims to solve the technical problem that the commutator structure in the prior art is widely used in automobile blower motors, but it will produce certain noise in the actual working process, affecting the riding experience of the driver.

[0005] To achieve the above-mentioned purpose, the utility model adopts a commutator KCC dovetail structure for automobile blower motor, which comprises a copper shell, an upper dovetail, a lower dovetail and a middle dovetail. The copper shell comprises a plurality of commutator segments, each of which is provided with a hook-shaped part. The upper dovetail, the lower dovetail and the middle dovetail are also respectively arranged on the corresponding commutator segments and located on the inner side of the commutator segments. The middle dovetail is located between the corresponding upper dovetail and the corresponding lower dovetail. The upper dovetail, the lower dovetail and the middle dovetail are all connected with the bakelite block.

[0006] Among them, the upper dovetail and the lower dovetail are both C-shaped.

[0007] Among them, the middle dovetail is K-shaped.

[0008] Among them, the upper dovetail and the lower dovetail are both provided with a first rounded corner structure.

[0009] Among them, the middle dovetail is provided with two second rounded corner structures.

[0010] Among them, the middle dovetail is processed into a preliminary K-shaped dovetail through a plow hook process, and then the copper material thickness of the upper plow is split open through a split hook process to form the middle dovetail.

[0011] The utility model discloses a commutator KCC dovetail structure for automobile blower motor, through setting up the upper part dovetail of C type and the lower part dovetail of C type, and setting up the middle part dovetail of K type between the upper part dovetail and the corresponding lower part dovetail, make the utility model discloses structure increase C type dovetail on the basis of original K+C type commutator frame, guarantee production process quality, and show in experimental data, strengthen the strength of piece tension (tension between dovetail and bakelite powder), reduce the noise of product, increase the stability and quietness of motor.

[0012] The utility model discloses the beneficial effect:

[0013] Strengthen the adhesion degree between commutator segment and bakelite powder, increase piece tension. When the commutator runs in the motor, the true roundness is more excellent, and the noise is reduced. On the other hand, the true roundness is good, and the abrasion consistency of the carbon brush and the copper row surface is higher. In the long-term operation, the noise is lower. The technical problem of the prior art commutator structure is solved. Although the commutator structure is widely used in the automobile blower motor, it produces certain noise in the actual working process, which affects the riding experience of the driver. DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model. For those skilled in the art, other drawings can also be obtained without creative labor.

[0015] Fig. 1 It is the structure schematic view of the utility model and the bakelite block assembly.

[0016] Fig. 2 It is the structure schematic view of the utility model's commutator KCC dovetail structure for automobile blower motor.

[0017] Fig. 3 It is the perspective view of the utility model's commutator KCC dovetail structure for automobile blower motor.

[0018] 101-copper shell, 102-upper part dovetail, 103-lower part dovetail, 104-middle part dovetail, 105-commutator segment, 106-hook part, 107-first fillet structure, 108-second fillet structure. CONCRETE IMPLEMENTING METHOD

[0019] The embodiments of the utility model are described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, but cannot be understood as the limitation of the utility model.

[0020] Referring to Figs. 1-3 , wherein Fig. 1 is the structure diagram of the utility model and the bakelite block assembly, Fig. 2 is the structure diagram of the commutator KCC dovetail structure for automobile blowing motor of the utility model, Fig. 3 is the perspective view of the commutator KCC dovetail structure for automobile blowing motor of the utility model.

[0021] The utility model provides a kind of commutator KCC dovetail structure for automobile blowing motor, including copper shell 101, upper dovetail 102, lower dovetail 103 and middle dovetail 104, the copper shell 101 includes several commutating sheets 105, several the hook-shaped portion 106 is set to the commutating sheet 105, the upper dovetail 102, the lower dovetail 103 and the middle dovetail 104 are also set on corresponding commutating sheet 105 respectively, and located the inner side of commutating sheet 105, and the middle dovetail 104 is located between corresponding upper dovetail 102 and corresponding lower dovetail 103, and the upper dovetail 102, the lower dovetail 103 and the middle dovetail 104 are connected with bakelite block;

[0022] The upper dovetail 102 and the lower dovetail 103 are all C-shaped;

[0023] The middle dovetail 104 is K-shaped;

[0024] The upper dovetail 102 and the lower dovetail 103 are all provided with first rounded corner structure 107;

[0025] The middle dovetail 104 is provided with two second rounded corner structures 108.

[0026] For this specific embodiment, by setting the upper C-shaped dovetail 102 and the lower C-shaped dovetail 103, and setting the middle K-shaped dovetail 104 between the upper dovetail 102 and the corresponding lower dovetail 103, the utility model structure increases C-shaped dovetail on the basis of original K+C type commutator frame, ensures production process quality, and in experimental data, it is shown that the strength of sheet tension (tension between dovetail and bakelite powder) is strengthened, the noise of product is reduced, and the stability and quietness of motor are increased;

[0027] Among them, the middle dovetail 104 is processed preliminary K-shaped dovetail by plow hook process, and then the copper material thickness of the upper plow is split by splitting hook process, to form the middle dovetail 104.

[0028] The KCC dovetail structure of the commutator for the automobile blowing motor is provided with the upper C-shaped dovetail 102, the lower C-shaped dovetail 103 and the middle K-shaped dovetail 104, so that the structure of the utility model increases the C-shaped dovetail on the basis of the original K+C type commutator frame structure, guarantees the quality in the production process, strengthens the strength of the piece tension (the tension between the dovetail and the bakelite powder), reduces the noise of the product, and increases the stability and quietness of the motor.

[0029] The utility model has the advantages of:

[0030] The adhesion between the commutator segment 105 and the bakelite powder is strengthened, the piece tension is increased, the roundness is more excellent when the commutator runs in the motor, and the noise is reduced; on the other hand, the roundness is good, the abrasion consistency of the carbon brush and the copper row surface is higher, the noise is lower under long-term operation, and the technical problem that the commutator structure in the prior art is widely used in the automobile blowing motor but produces certain noise in the actual working process, affecting the riding experience of the driver, is solved.

[0031] The above only discloses a preferred embodiment of the utility model, and of course cannot limit the right scope of the utility model, and the person skilled in the art can understand that all or part of the processes of the above embodiment are implemented, and equivalent changes are made according to the utility model claim, which still belongs to the range covered by the utility model.

Claims

1. A commutator KCC dovetail structure for an automobile blower motor, characterized in that, comprising a copper shell, an upper dovetail, a lower dovetail and a middle dovetail, the copper shell comprises a plurality of commutator segments, a hook-shaped portion is arranged on each of the plurality of commutator segments, the upper dovetail, the lower dovetail and the middle dovetail are also arranged on the corresponding commutator segments respectively and are located on the inner side of the commutator segments, and the middle dovetail is located between the corresponding upper dovetail and the corresponding lower dovetail, and the upper dovetail, the lower dovetail and the middle dovetail are all connected with a bakelite block.

2. The commutator KCC dovetail structure for an automobile blower motor according to claim 1, characterized in that, the upper dovetail and the lower dovetail are both in a C shape.

3. The commutator KCC dovetail structure for an automobile blower motor according to claim 2, characterized in that, the middle dovetail is in a K shape.

4. The commutator KCC dovetail structure for an automobile blower motor according to claim 3, characterized in that, a first fillet structure is arranged on the upper dovetail and the lower dovetail.

5. The commutator KCC dovetail structure for an automobile blower motor according to claim 4, characterized in that, the middle dovetail is provided with two second fillet structures.

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