CN203339853U - DC motor with limit switch in brush box - Google Patents
DC motor with limit switch in brush box Download PDFInfo
- Publication number
- CN203339853U CN203339853U CN2013204379910U CN201320437991U CN203339853U CN 203339853 U CN203339853 U CN 203339853U CN 2013204379910 U CN2013204379910 U CN 2013204379910U CN 201320437991 U CN201320437991 U CN 201320437991U CN 203339853 U CN203339853 U CN 203339853U
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- CN
- China
- Prior art keywords
- brush
- limit switch
- motor
- brush box
- box
- 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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- Dc Machiner (AREA)
Abstract
The utility model provides a dc motor with a limit switch in a brush box, relating to the technical field of dc motors. The dc motor comprises a casing, a stator and a rotor, wherein the stator is fixed in the casing and connected with the casing, the rotor is arranged in the stator, the brush box is arranged over a commutator of the rotor, and a brush is arranged in the brush box. The dc motor also comprises an alarm device which comprises the limit switch, wherein the limit switch is connected with the brush box, and the other end of the limit switch contacts with the brush. According to the utility module, the limit switch is mounted on the inner wall of the brush box, so that when the brush is installed into the brush box, the brush presses a button of the limit switch due to that a new brush is relatively long; and after the brush of the motor is used for a period, the brush and the surface of the commutator wear, and the button of the limit switch in the brush box pops up due to lack of pressure of the brush; and thus, alarming sounds are emitted to prompt a user to replace the brush of the dc motor in time, thereby avoiding faults, reducing economical loss, improving operational reliability of the motor and prolonging the service life of the motor.
Description
Technical field
The utility model relates to the technical field of direct current machine.
Background technology
Existing direct current machine mainly comprises casing, stator and rotor, stator is fixedly connected in casing, rotor is arranged in stator, and the commutator top of rotor arranges brush box, and brush is set in brush box, due to after brush used a period of time, brush and commutator face wearing and tearing, shorten the original length, and the disconnected pigtail of brush easily occurs, stage clip touches hinders commutator face, and pressure is little and the phenomenon such as sparking occurs.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and the direct current machine with limit switch device is provided in a kind of brush box, has warning function when brush and commutator face wear and tear to a certain degree, thereby extends the useful life of motor.
The purpose of this utility model is achieved in that in brush box the direct current machine with limit switch device, comprise casing, stator and rotor, stator is fixedly connected in casing, rotor is arranged in stator, and the commutator top of rotor arranges brush box, and brush is set in brush box, described direct current machine also comprises warning device, warning device comprises limit switch, and limit switch is connected with brush box, and the other end of limit switch contacts setting with brush.
The utility model is by above installing a limit switch at brush box inwall (one side contacted with brush), in brush is put into brush box, now, because newly brush is longer, brush has compressed the button of this limit switch, after the brush of motor has been used a period of time, brush and commutator face wearing and tearing, make the original length at remaining original 1/3 o'clock, spacing button in brush box has not had the compacting of brush and has ejected, thereby opened chimes of doom, reminding user need be changed this direct current motor brush in time, the pigtail thereby the brush of avoiding direct current machine to occur because brush is short breaks, stage clip touches hinders commutator face, pressure is little and the phenomenon such as sparking occurs.Effectively avoid the generation of above fault, reduced economic loss, the useful life of having improved motor reliability of operation and motor.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is I section enlarged drawing in Fig. 1.
Fig. 3 be in Fig. 2 K to view.
Embodiment
As Figure 1-3, the utility model mainly comprises casing 1, stator 2, rotor 3 and warning device 6, and stator 2 is fixedly connected in casing 1, and rotor 3 is arranged in stator 2, and the commutator 3-1 top of rotor 3 arranges brush box 4, the interior brush 5 that arranges of brush box 4.Warning device 6 comprises limit switch 6-1 and alarm circuit, and limit switch 6-1 is connected with brush box 4, and the other end of limit switch 6-1 contacts setting with brush 5.
Claims (1)
- In brush box with the direct current machine of limit switch device, comprise casing, stator and rotor, stator is fixedly connected in casing, rotor is arranged in stator, and the commutator top of rotor arranges brush box, and brush is set in brush box, it is characterized in that: described direct current machine also comprises warning device, warning device comprises limit switch, and limit switch is connected with brush box, and the other end of limit switch contacts setting with brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204379910U CN203339853U (en) | 2013-07-23 | 2013-07-23 | DC motor with limit switch in brush box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204379910U CN203339853U (en) | 2013-07-23 | 2013-07-23 | DC motor with limit switch in brush box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339853U true CN203339853U (en) | 2013-12-11 |
Family
ID=49708508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204379910U Expired - Fee Related CN203339853U (en) | 2013-07-23 | 2013-07-23 | DC motor with limit switch in brush box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203339853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368313A (en) * | 2013-07-23 | 2013-10-23 | 江苏王牌直流电机制造有限公司 | Direct current motor with limit switch device in brush box |
-
2013
- 2013-07-23 CN CN2013204379910U patent/CN203339853U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368313A (en) * | 2013-07-23 | 2013-10-23 | 江苏王牌直流电机制造有限公司 | Direct current motor with limit switch device in brush box |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20180723 |