CN214506013U - Carbon fiber composite type multi-layer super-wear-resistant carbon brush of condensation fan for automobile - Google Patents
Carbon fiber composite type multi-layer super-wear-resistant carbon brush of condensation fan for automobile Download PDFInfo
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- CN214506013U CN214506013U CN202120948979.0U CN202120948979U CN214506013U CN 214506013 U CN214506013 U CN 214506013U CN 202120948979 U CN202120948979 U CN 202120948979U CN 214506013 U CN214506013 U CN 214506013U
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Abstract
The utility model belongs to the technical field of the carbon brush for the car, concretely relates to super wear-resisting condensation fan carbon brush of compound multilayer of carbon fiber for car, including carbon brush wire, electrically conductive wearing layer and resistance layer, electrically conductive wearing layer locates resistance layer upper portion, electrically conductive wearing layer lower surface is connected with fixed surface on the resistance layer, electrically conductive wearing layer upper portion is equipped with the carbon brush wire, carbon brush wire and electrically conductive wearing layer upper portion fixed connection, electrically conductive wearing layer and resistance layer one end are provided with the cambered surface. The utility model discloses a with high electrically conductive high wearing layer and high lubricated high resistance layer combined material, through suppression, sintering, processing technology, produce low pressure drop, super wear-resisting carbon brush, reach the production that suppresses the electric spark, improve brush life's purpose.
Description
Technical Field
The utility model belongs to the technical field of the carbon brush for the car, concretely relates to compound multilayer super wear-resisting condensation fan carbon brush of carbon fiber for car.
Background
With the increasing living standard of people, automobiles are gradually popularized in every family of modern society, and the requirements of people on each part of the automobiles are higher and higher. The automobile engine heat dissipation condensation fan is an indispensable component unit of most automobiles, and the part heat that will be heated the part absorption in time distributes away, guarantees that the engine works under the most suitable temperature state, is one of the core components of automobile. Therefore, the service life of the automobile condensing fan becomes the key of the quality of an automobile radiating system, the service life of the carbon brush for the automobile condensing fan is the most critical factor for measuring the service life of the condensing fan, and the motor generally adopts a low-voltage direct current brush motor with the service voltage of 9-27V.
At present, automobile condensation is carbon brush for fan generally adopts the electrolytic copper powder, the resin binder, scale graphite powder and pure copper brush line are through the mould pressing, the sintering, grinding treatment forms, general brush body adopts a material to constitute mostly, this type of carbon brush can satisfy automobile condensation fan requirement at present basic quality guarantee period, but from 2013, domestic car is scrapped the year limit and is cancelled, people have provided higher requirement to the life-span of vehicle condensation fan, consequently this type of carbon brush can't solve the problem of restraining the electric spark production and promoting the durability. In view of this, the automobile industry puts higher demands on the composition and the manufacturing process of the carbon brush material.
Chinese patent publication No. CN101540466B discloses a carbon brush assembly for a motor and a motor including a carbon brush including a first end and a second end, the first end being in sliding contact with a commutator of the motor; the carbon brush box is used for installing a carbon brush in the carbon brush box and guiding the carbon brush to move, and comprises a first end part and a second end part, wherein the first end part of the carbon brush box is close to the first tail end of the carbon brush, and the second end part of the carbon brush box is far away from the first tail end of the carbon brush; the constant force spring comprises two curling parts and a connecting part for connecting the two curling parts, the connecting part is abutted against the second tail end of the carbon brush, the tail ends of the curling parts form a reel structure, hooks are respectively arranged on two sides of the first end part of the carbon brush box, the reel structure is respectively hung on the corresponding hooks, and the part, located between the tail end and the connecting part, of the curling part is straightened.
However, the following problems still exist:
1. the problem that electric sparks cannot be solved still exists in the traditional carbon brush material for the condensing fan, when a finished product is used, electric sparks occur on a contact surface of the finished product, so that the temperature of the contact surface is increased, the carbon brush cannot work for a long time, the single use time and the service life of the carbon brush are greatly limited, and the use requirement of the condensing fan on the electric brush cannot be completely met;
2. the prior art is not high enough in durability when using, can't reach the requirement of condensation fan to the durability.
SUMMERY OF THE UTILITY MODEL
The above-mentioned weak point that exists among the prior art, the utility model provides a car is with compound multilayer super wear-resisting condensation fan carbon brush of carbon fiber for solve traditional carbon brush material for the condensation fan and exist in the manufacturing process and can't solve the production that restraines the electric spark and promote the problem of durability, the utility model discloses a with high electrically conductive high wearing layer and high lubricated high resistance layer combined material, through suppression, sintering, processing technology, produce low pressure drop, super wear-resisting carbon brush, reach the production that restraines the electric spark, improve brush life's purpose.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the carbon fiber composite multilayer super-wear-resistant condensation fan carbon brush for the automobile comprises a carbon brush wire, a conductive wear-resistant layer and a resistance layer, wherein the conductive wear-resistant layer is arranged on the upper portion of the resistance layer, the lower surface of the conductive wear-resistant layer is fixedly connected with the upper surface of the resistance layer, the upper portion of the conductive wear-resistant layer is provided with the carbon brush wire, the carbon brush wire is fixedly connected with the upper portion of the conductive wear-resistant layer, and one end of the conductive wear-resistant layer and one end of the resistance layer are provided with arc surfaces.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a super wear-resisting condensation fan carbon brush of compound multilayer of carbon fiber for car through with high electrically conductive high wearing layer and high lubricated high resistance layer combined material, through suppression, sintering, processing technology, produces low pressure drop, super wear-resisting carbon brush, reaches the production that restraines the electric spark, improves brush life's purpose.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a carbon fiber composite type multilayer ultra-wear-resistant condensation fan carbon brush for an automobile of the present invention;
FIG. 2 is a flow chart of an embodiment of the carbon fiber composite type multi-layer super wear-resistant condensation fan carbon brush for the automobile of the present invention;
reference numerals referred to in the drawings are:
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the carbon fiber composite multilayer super-wear-resistant condensation fan carbon brush for the automobile comprises a carbon brush wire 1, a conductive wear-resistant layer 2 and a resistance layer 3, wherein the conductive wear-resistant layer 2 is arranged on the upper portion of the resistance layer 3, the lower surface of the conductive wear-resistant layer 2 is fixedly connected with the upper surface of the resistance layer 3, the carbon brush wire 1 is arranged on the upper portion of the conductive wear-resistant layer 2, the carbon brush wire 1 is fixedly connected with the upper portion of the conductive wear-resistant layer 2, and one end of the conductive wear-resistant layer 2 and one end of the resistance layer 3 are provided with arc surfaces.
As shown in fig. 2, the preparation method of the carbon fiber composite type multilayer super wear-resistant condensation fan carbon brush for the automobile comprises the following steps:
s1, preparing colloid powder A, mixing and stirring natural crystalline flake graphite, synthetic phenolic resin, molybdenum disulfide and industrial alcohol uniformly in a kneading pot, evaporating dry alcohol, taking out of the pot at a certain material temperature, and then prepressing, crushing and screening the obtained powder to obtain colloid powder A;
s2, preparing material powder B, and uniformly mixing the colloid powder A, the carbon fiber powder and the high-proportion electrolytic copper powder to obtain material powder B;
s3, preparing material powder C, and uniformly mixing the colloid powder A and the low-proportion copper powder to obtain the material powder C with low copper content and high resistance;
s4, preparing a green carbon brush D, adding the powder C into a powder forming pressing die, then adding the powder B with high copper content into the pressing die, and then carrying out pressing treatment, wherein a carbon brush wire is directly pressed and formed in the pressing and forming process to obtain the green carbon brush D.
S5, preparing a coarse carbon brush E, and sintering the green carbon brush D in equipment to obtain the coarse carbon brush E;
s6, manufacturing a finished carbon brush F, firstly carrying out bottom grinding treatment on the sintered carbon brush with the coarse size to ensure that the installation size of the carbon brush is within the design tolerance, and secondly carrying out arc grinding processing on the top end of the carbon brush to ensure that the carbon brush can be perfectly attached and contacted with a commutator when in use, thereby obtaining the finished carbon brush F with the qualified size;
s7, detecting the performance and the durability of the finished carbon brush: the finished carbon brush product has the connecting resistance of 0.5-30m omega, the resistivity of 50-1200 mu omega cm and the Shore hardness of 10-35 Hs. And then the carbon brush is arranged in a 12V automobile condensing fan, and the durability life test is carried out under the test condition of continuous operation at the rated voltage of 12V, wherein the wear rate is 0.15mm/100 hours.
The temperature of the discharged materials is 80 ℃; the sintering equipment of the green carbon brush D is a tunnel type continuous sintering furnace; the natural crystalline flake graphite accounts for 60-90%, the synthetic phenolic resin accounts for 6-20%, the molybdenum disulfide accounts for 1-5% and the industrial alcohol accounts for 15-40%; the material powder B comprises 50-80% of colloid powder A, 0.5-5% of carbon fiber powder and 15-50% of copper powder; the material powder C comprises 80-100% of colloid powder A and 0-20% of copper powder; the thickness ratio of C to B in the green carbon brush D is 1:5-1:3, a press used for press forming is a mechanical powder forming machine, the pressure is 3-20 tons, and the carbon brush wire 1 is a special copper braided wire for an oxygen-free carbon brush; the sintering temperature of the green carbon brush D is 400-800 ℃, and the sintering furnace adopts H2And N2The mixed gas of (A) and (B) is used for carrying out anti-oxidation protection on the product, wherein H is2And N2In a ratio of 1: 4.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (1)
1. Carbon fiber composite multilayer super wear-resisting condensation fan carbon brush for car, its characterized in that: including carbon brush wire (1), electrically conductive wearing layer (2) and resistance layer (3), resistance layer (3) upper portion is located in electrically conductive wearing layer (2), electrically conductive wearing layer (2) lower surface and resistance layer (3) upper surface fixed connection, electrically conductive wearing layer (2) upper portion is equipped with carbon brush wire (1), carbon brush wire (1) and electrically conductive wearing layer (2) upper portion fixed connection, electrically conductive wearing layer (2) and resistance layer (3) one end are provided with the cambered surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120948979.0U CN214506013U (en) | 2021-05-06 | 2021-05-06 | Carbon fiber composite type multi-layer super-wear-resistant carbon brush of condensation fan for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120948979.0U CN214506013U (en) | 2021-05-06 | 2021-05-06 | Carbon fiber composite type multi-layer super-wear-resistant carbon brush of condensation fan for automobile |
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| CN214506013U true CN214506013U (en) | 2021-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039256A (en) * | 2021-12-23 | 2022-02-11 | 捷和电机制品(深圳)有限公司 | Asphalt-based carbon fiber reinforced copper-based graphite motor carbon brush and preparation method thereof |
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2021
- 2021-05-06 CN CN202120948979.0U patent/CN214506013U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039256A (en) * | 2021-12-23 | 2022-02-11 | 捷和电机制品(深圳)有限公司 | Asphalt-based carbon fiber reinforced copper-based graphite motor carbon brush and preparation method thereof |
| CN114039256B (en) * | 2021-12-23 | 2024-01-09 | 捷和电机制品(深圳)有限公司 | Asphalt-based carbon fiber reinforced copper-based graphite motor carbon brush and preparation method thereof |
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