CN204721136U - Sealing device and there is the alternating current generator of sealing device - Google Patents
Sealing device and there is the alternating current generator of sealing device Download PDFInfo
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- CN204721136U CN204721136U CN201520378770.XU CN201520378770U CN204721136U CN 204721136 U CN204721136 U CN 204721136U CN 201520378770 U CN201520378770 U CN 201520378770U CN 204721136 U CN204721136 U CN 204721136U
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- brush
- sealing device
- alternating current
- current generator
- rear end
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Abstract
The utility model discloses a kind of sealing device of alternating current generator, be installed on an alternating current generator, alternating current generator comprises a rear end cap, a brush carriage, two brushes and two slip rings, brush is connected to slip ring accordingly, brush is also fixed on rear end cap by brush carriage, forms a brush room, wherein between rear end cap and brush carriage, sealing device is arranged in brush room and is sheathed on brush carriage, and is connected to rear end cap.The invention also discloses a kind of alternating current generator with above-mentioned sealing device.
Description
Technical field
The utility model relates to a kind of vehicle-mounted dlternator and sealing device, particularly a kind of motor vehicle open and generator operation process in can effectively seal brush room, thus keep the drying of brush room, clean, to improve the life-span of generator brush and bearing, and improve the classification of waterproof of generator further.
Background technology
See the cutaway view that Fig. 1-Fig. 3, Fig. 1 are existing automotive alternator; Fig. 2 is that existing automotive alternator rear end cap installs upward view; Fig. 3 is the cutaway view of Fig. 2.Motor-driven one-tenth alternating current generator of the prior art, wherein the direction of arrow is the direction that extraneous dust and water enter brush room.As Figure 1-3, generally include rear end cap 2, brush carriage 3, brush 4, slip ring 5.Brush carriage 3 is fixed on rear end cap 2 by attachment screw, and partial insertion rear end cap 2, brush 4 is connected to slip ring 5.A gap is there is, i.e. brush room 6 between usual brush carriage 3 and rear end cap 2.Due to the formation of generator negative pressure, while band inlet air enters generator, the extraneous impurity such as dust, muddy water very also enters generator with the wind, and it is inner that water and dust can enter into brush room 6.When brush 4 runs up with slip ring 5, water and dust medium, increase the coefficient of friction between brush 4 and slip ring 5, thus cause the excessive wear of brush, reduces the useful life of brush, thus greatly reduce the life-span of generator.In addition, mix under the effect of the dust that the fricative dust of brush 4 and the external world enter and water, drop between rear bearing Internal and external cycle, thus cause rear bearing to lose efficacy, reduce the useful life of generator.
Patent CN200820082111.1 discloses a kind of carbon brush closed automobile generator, makes bearing, collector ring and carbon brush be closed in this current collection ring set, form and close entirety by increasing by a current collection ring set and arrange a rubber gasket on this collector ring cover.Although this structure can play sealing effectiveness, but what this structure adopted is seal completely, due to the high-speed friction of brush and slip ring, have employed hermetic form in addition, cause brush room high temperature, thus cause the accelerated wear test of slip ring and brush, and can because extraneous water enters closed chamber but cannot discharge in time and causes electric motors function to lose efficacy in high-pressure flush situation, therefore developing a kind of sealing device overcoming above-mentioned defect has become a urgent problem.
Utility model content
Technical problem to be solved in the utility model is after causing brush room high temperature for existing complete seal form, thus accelerate the wear problem of slip ring and brush, provide a kind of sealing device, decrease the setting of slip ring sleeve, and the temperature effectively reducing brush room rises and plays good sealing function, thus improve the useful life of generator.
For achieving the above object, the utility model provides a kind of sealing device of alternating current generator, be installed on an alternating current generator, described alternating current generator comprises a rear end cap, a brush carriage, two brushes and two slip rings, described brush is connected to described slip ring accordingly, described brush is also fixed on described rear end cap by described brush carriage, a brush room is formed between described rear end cap and described brush carriage, wherein, described sealing device is arranged in described brush room and is sheathed on described brush carriage, and is connected to described rear end cap.
The sealing device of above-mentioned alternating current generator, wherein, described sealing device is one in the elastic seal cartridge of wedge structure.
The sealing device of above-mentioned alternating current generator, wherein, described elastic seal cartridge comprises a upper surface, a lower surface, a junction and a through hole, described upper surface is shunk to downward-extension and is formed described lower surface, described connecting portion connects described lower surface and described upper surface, and described through hole is communicated with described lower surface and described upper surface.
The sealing device of above-mentioned alternating current generator, wherein, described brush carriage is also provided with positioning protrusion portion, described positioning cams is against described upper surface.
The sealing device of above-mentioned alternating current generator, wherein, described elastic seal cartridge has a hollow sectional area.
The sealing device of above-mentioned alternating current generator, wherein, described elastic seal cartridge is connected with described rear end cap interference fit.
The sealing device of above-mentioned alternating current generator, wherein, described connecting portion comprises four outer faces, the angle all round that described four outer faces are different with described upper surface angulation respectively.
The sealing device of above-mentioned alternating current generator, wherein, described connecting portion also comprises four inner faces, and described four inner faces are the angle in different four with described upper surface angulation respectively.
The utility model also provides a kind of alternating current generator, comprise a rear end cap, a brush carriage, two brushes and two slip rings, described brush is connected to described slip ring accordingly, described brush is also fixed on described rear end cap by described brush carriage, form a brush room between described rear end cap and described brush carriage, wherein, described alternating current generator also comprise above-mentioned according to any one of sealing device, be arranged in described brush room and be sheathed on described brush carriage, and be connected to described rear end cap.
The utility model is directed to its beneficial functional of prior art and is, this sealing device applicability is strong, structure is simple, can effectively prevent external dust and water from entering, simultaneously due to brush and slip ring place Semi-seal structure, reduce the rising of temperature, thus improve the useful life of the sealing of motor and brush, bearing, improve the useful life of generator further.Wherein, sealing device be interference fit with rear end cap, make sealing device be subject under External Force Acting, strain occur, thus gap, brush room is filled up, avoid entering of water and dust; Solve sealing device by positioning cams location sealing device to move to brush carriage direction, and gap can not be carried out the problem of sealing very well.
Below in conjunction with drawings and Examples, the utility model is described further, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the cutaway view of existing automotive alternator;
Fig. 2 is that existing automotive alternator rear end cap installs upward view;
Fig. 3 is the cutaway view of Fig. 2;
Fig. 4 is the schematic diagram of the utility model sealing device embodiment;
Fig. 5 is the front view of the utility model sealing device embodiment;
Fig. 6 is the E-E cutaway view of Fig. 5;
Fig. 7 is the F-F cutaway view of Fig. 5;
Fig. 8 is the cutaway view of the utility model alternating current generator;
Fig. 9 is that upward view installed by the utility model alternating current generator rear end cap and sealing device;
Figure 10 is the cutaway view of Fig. 9.
Wherein, Reference numeral
1 sealing shroud
11 upper surfaces
12 lower surfaces
13 connecting portions
1311,1312,1313,1314 outer faces
1321,1322,1323,1324 inner faces
14 through holes
2 rear end caps
3 brush carriages
31 positioning cams
4 brushes
5 slip rings
6 brush rooms
The outer angle of a1, a2, a3, a4
Angle in b1, b2, b3, b4
Embodiment
Below in conjunction with accompanying drawing and a preferred embodiment, technical solutions of the utility model are described in detail, further to understand the purpose of this utility model, scheme and effect, but and are not used to limit the utility model.
Because the structure of the composition of automotive alternator, each part, mutual alignment relation and annexation and function etc. thereof are more ripe prior art, therefore do not repeat them here, only the improvement that sealing device part of the present utility model is done is described in detail below.
Refer to Fig. 4-Fig. 7, Fig. 4 is the schematic diagram of the utility model sealing device embodiment; Fig. 5 is the front view of the utility model sealing device embodiment; Fig. 6 is the E-E cutaway view of Fig. 5; Fig. 7 is the F-F cutaway view of Fig. 5.As Figure 4-Figure 7, the utility model sealing device 1 is the elastic seal cartridge of a wedge structure, comprises: the upper surface 11 be arranged in parallel and 12, one, a lower surface connecting portion 13 and a through hole 14; Wherein upper surface 11 retracted downward extends to form lower surface 12, and outer wall 13 connects lower surface 11 and upper surface 12, and through hole 14 is communicated with lower surface 11 and upper surface 12.Wherein, connecting portion 13 comprises 1311,1312,1313,1314 and four, four outer faces inner face 1321,1322,1323,1324 further; Outer angle a1, a2, a3, a4 that outer face 1311,1312,1313,1314 is different with upper surface 11 angulation respectively; Angle b1, b2, b3, b4 in inner face 1321,1322,1323,1324 is different with upper surface 11 angulation respectively; The differential seat angle of a2 and b2 is 2 °.
Refer to Fig. 8-Figure 10, Fig. 8 is the cutaway view of the utility model alternating current generator; Fig. 9 is that upward view installed by alternating current generator rear end cap and sealing device; Figure 10 is the cutaway view of Fig. 9.As Figure 8-Figure 10, the utility model alternating current generator comprises: the elastic seal cartridge 1 of a wedge structure; A rear end cap 2, brush carriage 3, two brushes 4 and two slip rings 5; Two brushes 4 are fixed on rear end cap 2 by brush carriage 3; Two brushes 4 are connected to two slip rings 5 accordingly; Form a brush room 6 between rear end cap 2 and brush carriage 3, sealing shroud 1 is arranged in brush room 6, and through hole 14 is sheathed on brush carriage 3, and sealing shroud 1 is connected to rear end cap 2, to brush 4 and slip ring 5, this carries out seal protection to friction pair.Wherein, sealing shroud 1 has a hollow sectional area.
As shown in Figure 8, brush carriage 3 is also provided with positioning protrusion portion 31, positioning cams against described lower surface 11, thus prevents sealing shroud 1 from moving to the direction of brush carriage 3, avoids gap to be sealed very well.
Further, sealing shroud 1 is connected with rear end cap 2 interference fit, is being subject under External Force Acting, strain occurs, thus to be filled up in gap, brush room 6, avoids entering of water and dust.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (9)
1. the sealing device of an alternating current generator, be installed on an alternating current generator, described alternating current generator comprises a rear end cap, a brush carriage, two brushes and two slip rings, described brush is connected to described slip ring accordingly, described brush is also fixed on described rear end cap by described brush carriage, a brush room is formed between described rear end cap and described brush carriage, it is characterized in that, described sealing device is arranged in described brush room and is sheathed on described brush carriage, and is connected to described rear end cap.
2. the sealing device of alternating current generator as claimed in claim 1, is characterized in that, described sealing device is an elastic seal cartridge in wedge structure.
3. the sealing device of alternating current generator as claimed in claim 2, it is characterized in that, described elastic seal cartridge comprises a upper surface, a lower surface, a junction and a through hole, described upper surface is shunk to downward-extension and is formed described lower surface, described connecting portion connects described lower surface and described upper surface, and described through hole is communicated with described lower surface and described upper surface.
4. the sealing device of alternating current generator as claimed in claim 3, it is characterized in that, described brush carriage is also provided with positioning protrusion portion, and described positioning cams is against described upper surface.
5. the sealing device of alternating current generator as claimed in claim 2, it is characterized in that, described elastic seal cartridge has a hollow sectional area.
6. the sealing device of alternating current generator as claimed in claim 2, it is characterized in that, described elastic seal cartridge is connected with described rear end cap interference fit.
7. the sealing device of alternating current generator as claimed in claim 3, it is characterized in that, described connecting portion comprises four outer faces, and described four outer faces form angle all round with described upper surface respectively, and the angle of described outer angle is different.
8. the sealing device of alternating current generator as claimed in claim 3, it is characterized in that, described connecting portion also comprises four inner faces, and described four inner faces form angle in four with described upper surface respectively, and the angle of described interior angle is different.
9. an alternating current generator, comprise a rear end cap, a brush carriage, two brushes and two slip rings, described brush is connected to described slip ring accordingly, described brush is also fixed on described rear end cap by described brush carriage, form a brush room between described rear end cap and described brush carriage, it is characterized in that, described alternating current generator also comprises the sealing device according to any one of the claims 1-8, be arranged in described brush room and be sheathed on described brush carriage, and be connected to described rear end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378770.XU CN204721136U (en) | 2015-06-03 | 2015-06-03 | Sealing device and there is the alternating current generator of sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378770.XU CN204721136U (en) | 2015-06-03 | 2015-06-03 | Sealing device and there is the alternating current generator of sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN204721136U true CN204721136U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520378770.XU Active CN204721136U (en) | 2015-06-03 | 2015-06-03 | Sealing device and there is the alternating current generator of sealing device |
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| CN (1) | CN204721136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545002A (en) * | 2018-05-28 | 2019-12-06 | 法雷奥电机设备公司 | Sealed motor vehicle starter with angularly wedged brush-holder gasket |
-
2015
- 2015-06-03 CN CN201520378770.XU patent/CN204721136U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545002A (en) * | 2018-05-28 | 2019-12-06 | 法雷奥电机设备公司 | Sealed motor vehicle starter with angularly wedged brush-holder gasket |
| CN110545002B (en) * | 2018-05-28 | 2021-07-23 | 法雷奥电机设备公司 | Sealed motor vehicle starter with angularly wedged brush-holder gasket |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |