CN205029470U - Starter brush yoke protective structure - Google Patents
Starter brush yoke protective structure Download PDFInfo
- Publication number
- CN205029470U CN205029470U CN201520782132.4U CN201520782132U CN205029470U CN 205029470 U CN205029470 U CN 205029470U CN 201520782132 U CN201520782132 U CN 201520782132U CN 205029470 U CN205029470 U CN 205029470U
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- China
- Prior art keywords
- brace
- starter
- brush
- connection piece
- brush holder
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- 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.)
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Abstract
The utility model discloses a starter brush yoke protective structure, including the connection piece, connection piece one end links to each other with the external lead wire of brush yoke, is equipped with on the connection piece to be used for the connecting hole continuous with the switch, be equipped with the notch on the connection piece between connection piece one end and connecting hole. The connection piece is located narrowlyer at the notch, fusing earlier when the short circuit appearing makes the major loop break off automatically, plays the guard action, prevents the naked light phenomenon.
Description
Technical field
The utility model relates to starter technical field, especially relates to a kind of starter brush holder safeguard structure.
Background technology
Along with the raising that people require vehicle safety performance, namely will ensure to allow in no instance to occur automobile dieseling on fire, this also just proposes high requirement to the security performance of automobile starter.Due to the periphery applied environment more complicated of starter in car load, so require to cause starter not power-off in any situation, starter operates continuously until before burning thorough disconnection major loop, starter does not allow to occur naked light phenomenon.
If starter is in not off-position, armature persistent fever being made, causing short circuit when reaching the thawing of uniform temperature armature coil insulating varnish.We must control armature makes motor main circuit disconnect when short circuit produces big current, prevents short circuit from occurring naked light phenomenon.
Utility model content
Not enough for prior art, technical problem to be solved in the utility model is to provide a kind of starter brush holder safeguard structure, with reach there is short circuit time the motor main circuit object that automatically disconnects.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of starter brush holder safeguard structure, comprise brace, described brace one end is connected with brush holder external lead wire, and brace is provided with the connecting hole for being connected with switch, and described brace is provided with notch between brace one end and connecting hole.
Further, described notch is circular or oval or U-shaped.
The material of described brace is fine copper or brass.
Described connecting hole is located at the brace other end.
The width at described brace two ends is greater than the width in the middle part of brace.
The utility model compared with prior art, has the following advantages: the brace of brush holder external lead wire assembly is provided with notch, and brace is narrower at notch place; can first fuse when there is short circuit; automatically make major loop disconnect, play a protective role, prevent naked light phenomenon.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described:
Fig. 1 is the utility model starter brush rocker structure schematic diagram.
Fig. 2 is the utility model brace structural representation.
In figure: 1. brace, 2. notch, 3. positive pole brush box, 4. positive pole carbon brush, 5. negative pole brush box, 6. negative pole carbon brush, 7. carbon brush lead wire, 8. negative plate, 9. brush bridge.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail.
As depicted in figs. 1 and 2, starter brush holder, comprise positive pole brush box 3, positive pole carbon brush 4, negative pole brush box 5, negative pole carbon brush 6, carbon brush lead wire 7, negative plate 8, brush bridge 9, brace 1, wherein, be connected with the electromagnetic switch of outside by brush holder external lead wire and brace 1.
Brush holder external lead wire one end is connected with brush bridge, and the brush holder external lead wire other end is connected with one end of brace, and the other end of brace 1 is provided with the connecting hole for being connected with electromagnetic switch, and brace is provided with notch 2 between brace one end and connecting hole.
Connecting hole is located at brace 1 other end, and the width at brace 1 two ends is greater than the width in the middle part of brace, namely makes this place's width of brace reduce, narrow by arranging notch 2.
The material of brace 1 is fine copper or brass, and notch is circular or oval or U-shaped, and processing is simple, easily controls.
The brace of brush holder external lead wire assembly is connected with electromagnetic switch, the external lead wire assembly other end and brush bridging are connected together, positive pole carbon brush by wire bonds at brush bridge two ends, positive pole carbon brush is placed in positive pole brush box, negative pole carbon brush is by wire bonds on negative pole base plate, and negative pole carbon brush is placed in negative pole brush box.Electric current is just passed to brush holder external lead wire assembly by electromagnetic switch by the electric current of such storage battery, electric current flows into brush bridge by external lead wire, positive pole carbon brush is flowed into again by brush bridge, electric current in positive pole carbon brush flows into negative pole carbon brush by armature commutator, and electric current finally flows into brush holder ground connection base plate and forms a whole loop.
When starter short circuit has big current, on brace, the narrower place of notch can first fuse, and major loop disconnects, and plays a protective role.The internal resistance impact of this scheme on motor is very little, and the size of slotting is easy to calculate according to power of motor and battery capacity.
Protection is realized by the minimizing brush rocker and carbon brush lead-in wire number of turn or the brush holder external lead wire number of turn; there is certain deficiency in this scheme; because the cross-sectional area (number of turn) that we are difficult to control carbon brush lead wire or external lead wire realizes making motor disconnect major loop at starter because which kind of reason causes not power-off to produce big current, prevent starter ablation.Pulling-out force after reduction wire cross-sectional area also can cause lead-in wire and brush bridge welding to connect reduces greatly, affects brush holder quality.Meanwhile, the cross-sectional area reducing carbon brush lead wire or external lead wire can make motor internal resistance increase, and affects the output performance of starter.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that design of the present utility model and technical scheme are carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection range of the present utility model without to improve.
Claims (5)
1. a starter brush holder safeguard structure, comprise brace, described brace one end is connected with brush holder external lead wire, and brace is provided with the connecting hole for being connected with switch, it is characterized in that: described brace is provided with notch between brace one end and connecting hole.
2. starter brush holder safeguard structure as claimed in claim 1, is characterized in that: described notch is circular or oval or U-shaped.
3. starter brush holder safeguard structure as claimed in claim 1, is characterized in that: the material of described brace is fine copper or brass.
4. starter brush holder safeguard structure as claimed in claim 1, is characterized in that: described connecting hole is located at the brace other end.
5. starter brush holder safeguard structure as claimed in claim 4, is characterized in that: the width at described brace two ends is greater than the width in the middle part of brace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520782132.4U CN205029470U (en) | 2015-10-08 | 2015-10-08 | Starter brush yoke protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520782132.4U CN205029470U (en) | 2015-10-08 | 2015-10-08 | Starter brush yoke protective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205029470U true CN205029470U (en) | 2016-02-10 |
Family
ID=55261973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520782132.4U Active CN205029470U (en) | 2015-10-08 | 2015-10-08 | Starter brush yoke protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205029470U (en) |
-
2015
- 2015-10-08 CN CN201520782132.4U patent/CN205029470U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |