CN202977943U - Motor in air compressor - Google Patents
Motor in air compressor Download PDFInfo
- Publication number
- CN202977943U CN202977943U CN 201220748944 CN201220748944U CN202977943U CN 202977943 U CN202977943 U CN 202977943U CN 201220748944 CN201220748944 CN 201220748944 CN 201220748944 U CN201220748944 U CN 201220748944U CN 202977943 U CN202977943 U CN 202977943U
- Authority
- CN
- China
- Prior art keywords
- motor
- air compressor
- carbon brush
- compressor machine
- commutator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses a motor in an air compressor. The motor in the air compressor comprises a main shaft mounting frame (1), a carbon brush (2) and a commutator (3), wherein the main shaft mounting frame (1) comprises a through hole, the carbon brush (2) is mounted in the through hole (4) and tightly attached to the commutator (3), and the cross sectional area of the carbon brush (2) is 90.75mm<2>. The motor in the air compressor has low current density, and reduces the heating temperature of the carbon brush, so that the brush is not easy to wear, and the service life of the motor in the air compressor is prolonged.
Description
Technical field
The utility model relates to the air compressor machine field, specifically the motor in a kind of air compressor machine.
Background technology
Include carbon brush in motor in air compressor machine, described carbon brush is the device of transferring energy or signal between the standing part of motor or generator or other rotating machineries and rotating part, and the cross-sectional area of existing carbon brush is generally 80mm
2, the current density that produces is 15A/cm
2. because cross-sectional area is little, cause current density to increase, easily make the carbon brush heating, easily wearing and tearing, thus reduce motor useful life.
The utility model content
The technical problem that (one) will solve
The technical problems to be solved in the utility model improves the useful life of carbon brush in the interior motor of air compressor machine.
(2) technical scheme
For addressing the above problem, the motor in the motor in a kind of air compressor machine of the present utility model, described air compressor machine comprises main shaft installing rack, carbon brush and commutator; Described main shaft installing rack includes through hole, and described carbon brush is arranged in through hole and is close to commutator, and the cross section of described carbon brush is high is that 11mm, the wide 8.25mm of being of a size of and cross-sectional area are 90.75mm
2
As further improvement of the utility model, described commutator brush track diameter is 28mm, the high 21mm of being.
As further improvement of the utility model, the current density of described carbon brush is 12A/cm
2
(3) beneficial effect
Motor in air compressor machine of the present utility model, arranging high by the cross section with carbon brush is that 11mm, the wide 8.25mm of being of a size of and cross-sectional area are 90.75mm
2, be 90.75mm because having increased cross-sectional area
2So, reduce the current density of carbon brush, so reduced the heating temp of carbon brush, make carbon brush not easy to wear, thereby improved the useful life of the motor in air compressor machine.
Description of drawings
Fig. 1 is the structural representation of the motor in air compressor machine of the present utility model;
Fig. 2 is the sectional view of the carbon brush of the motor in air compressor machine of the present utility model;
In figure, 1 is that main shaft installing rack, 2 is that carbon brush, 3 is that commutator, 4 is through hole.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, the motor in a kind of air compressor machine is characterized in that, the motor in described air compressor machine comprises that main shaft installing rack 1, carbon brush 2 and external diameter are that the 28mm height is the commutator 3 of 21mm; Described main shaft 1 installing rack includes through hole 4, and described carbon brush 2 is arranged in through hole 4 and is close to commutator 3, and the cross section of described carbon brush 2 is high is that 11mm, the wide 8.25mm of being of a size of and cross-sectional area are 90.75mm
2, the current density of described carbon brush 2 is 12A/cm
2, because having increased cross-sectional area, the current density of described carbon brush 2 is reduced, and has therefore reduced the heating temp of carbon brush 2, makes carbon brush 2 not easy to wear, thereby has improved the useful life of the motor in air compressor machine.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. the motor that air compressor machine is interior, is characterized in that, the motor in described air compressor machine comprises main shaft installing rack (1), carbon brush (2) and commutator (3); Described main shaft (1) installing rack includes through hole (4), and described carbon brush (2) is arranged in through hole (4) and is close to commutator (3), and the cross-sectional area of described carbon brush (2) is 90.75mm
2
2. the motor in air compressor machine according to claim 1, is characterized in that, described commutator (3) external diameter is 28mm, the high 21mm of being.
3. the motor in air compressor machine according to claim 1, is characterized in that, the current density of described carbon brush (2) is 12A/cm
2
4. the motor in the described air compressor machine of according to claim 1 to 3 any one, is characterized in that, described shape of cross section is rectangle, and described rectangle is high is 11mm, the wide 8.25mm that is of a size of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220748944 CN202977943U (en) | 2012-12-29 | 2012-12-29 | Motor in air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220748944 CN202977943U (en) | 2012-12-29 | 2012-12-29 | Motor in air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977943U true CN202977943U (en) | 2013-06-05 |
Family
ID=48518971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220748944 Expired - Fee Related CN202977943U (en) | 2012-12-29 | 2012-12-29 | Motor in air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977943U (en) |
-
2012
- 2012-12-29 CN CN 201220748944 patent/CN202977943U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |