CN206471959U - A kind of automotive alternator and its cover assembly - Google Patents
A kind of automotive alternator and its cover assembly Download PDFInfo
- Publication number
- CN206471959U CN206471959U CN201720157811.1U CN201720157811U CN206471959U CN 206471959 U CN206471959 U CN 206471959U CN 201720157811 U CN201720157811 U CN 201720157811U CN 206471959 U CN206471959 U CN 206471959U
- Authority
- CN
- China
- Prior art keywords
- cover assembly
- rear end
- end cap
- motor shaft
- generator
- 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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- 238000009954 braiding Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 6
- 230000004323 axial length Effects 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a kind of automotive alternator and its cover assembly, cover assembly is connected on automotive alternator, generator includes drive end bearing bracket, rear end cap and motor shaft, motor shaft is installed and is supported on drive end bearing bracket and rear end cap, cover assembly is connected to the outside of rear end cap, wherein, cover assembly is radial direction Split type structure, including multiple cover bodies, the combination of multiple cover bodies is to form along the radial direction wall radially extended of motor shaft and along the axially extending of motor shaft and the axial wall that extends on the outside of rear end cap.The utility model not only makes it easy to dismount and safeguard by the way that the split of shield radial direction is designed, and shortens generator axial length, saves space, even if there is a small amount of foreign matter to enter generator, can also be readily available cleaning.
Description
Technical field
The utility model is related to a kind of cover assembly of automotive alternator, specifically, is to be related to a kind of use
The cover assembly of Split type structure.
Background technology
Referring to Fig. 1 to Fig. 2, Fig. 1 is that prior art is used for the sectional view of automotive alternator mounting strap, and Fig. 2 is
Prior art automotive alternator mounting strap front view.Automotive alternator of the prior art, as illustrated,
Belt pulley 1 is generally included, fan 2, drive end bearing bracket 3, fore bearing 4, stator 5, rotor 6, rear end cap 7, rear bearing 8, adjuster 9 is whole
Flow bridge 10 and shield 11.To ensure the ventilation and heat of generator, the shield 11 of generator offers the air vent of lattice-shaped.Hair
Motor is in operation process, and the air vent of wind from shield 11 enters generator, so that generator plays the work of cooling
With.
Due to the formation of generator negative pressure, while band inlet air enters generator, extraneous dust, debris etc.
Generator can be entered with the wind.The air vent of the shield 11 of especially existing generator is larger, in use, planting on agricultural machine
Thing cauline leaf etc. enters membership and causes even more serious consequence.After debris enters, generator rear portion can be attached to, blocking air channel is unimpeded,
Radiating effect when this will substantially reduce generator operation.Above drawback can reduce generator service life.And shield 11 1
As be anchored on by screw or bolt on commutator end bearing support bracket 7, such mounting means causes during generator use also very
Difficulty accomplishes that free-hand dismounting shield 11 carries out the cleaning of foreign matter, is not easy to the maintenance of client.Even if dismantling shield using specific purpose tool
Cleared up after 11, the foreign matter for entering motor internal is also easily accessible inside bearing chamber, cause the reduction of bearing life.
Utility model content
The purpose of this utility model is that there is provided a kind of motor vehicle the problem of solving existing generator shroud cleaning dismounting difficulty
Alternating current generator and its cover assembly, cover assembly use radial direction Split type structure, are easy to generator to disassemble to carry out cleaning.
To achieve these goals, cover assembly of the present utility model is connected on an automotive alternator, described
Generator includes drive end bearing bracket, rear end cap and motor shaft, and the motor shaft is installed and is supported on the drive end bearing bracket and rear end cap, described
Cover assembly is connected to the outside of the rear end cap, wherein, the cover assembly is radial direction Split type structure, including multiple cover bodies,
Multiple cover bodies combine to be formed along the radial direction wall radially extended of the motor shaft and the axial direction along the motor shaft
The axial wall for extending and extending on the outside of the rear end cap.
In one embodiment of above-mentioned cover assembly, each cover body is respectively provided with drift bolt hole, in each cover body group
During conjunction, each drift bolt hole on the axial direction of the parallel motor shaft in being stacked, and a positioning link passes through each drift bolt hole simultaneously
It is connected on the rear end cap.
In one embodiment of above-mentioned cover assembly, the positioning link is wing bolt.
In one embodiment of above-mentioned cover assembly, one of them described cover body includes the circumferentially positioned portion of cover body, described
Rear end cap has the end cap circumferentially positioned portion corresponding with the circumferentially positioned portion of the cover body.
Have in one embodiment of above-mentioned cover assembly, between the axial wall and the rear end cap and form auxiliary
One annular gap in air channel.
In one embodiment of above-mentioned cover assembly, in addition to multiple projections, it is multiple described raised from the radial wall
Extend towards the direction of the rear end cap, and corresponding to setting on the outside of the edge of the rear end cap.
In one embodiment of above-mentioned cover assembly, the radial direction wall is non-ventilating surface, and the axial walls face has
Air inlet.
In one embodiment of above-mentioned cover assembly, the axial wall is inlayed mesh grid by support and formed.
In one embodiment of above-mentioned cover assembly, the air inlet is multiple along the axially arranged of the motor shaft
Strip opening.
The automotive alternator that the utility model is provided, including generator shroud, drive end bearing bracket, rear end cap and motor
Axle, the motor shaft is installed and is supported on the drive end bearing bracket and rear end cap, and the generator shroud is connected to the rear end cap
Outside, wherein, the generator shroud is above-mentioned cover assembly.
Beneficial functional of the present utility model is：
The utility model not only makes it easy to dismount and safeguard, and shorten generating by the way that the split of shield radial direction is designed
Machine axial length, saves space, even if there is a small amount of foreign matter to enter generator, can also be readily available cleaning.
In addition, the radial direction air intake that the cover assembly of alternating current generator of the present utility model is set, can effectively prevent extraneous different
Thing, especially crops foreign matter enters generator, slows down or avoids foreign body obstruction air channel.And the utility model passes through
Set auxiliary air channel to increase draught area, make well-ventilated in generator operation, so as to reduce the rising of temperature, effectively
Improve the service life of generator.
The utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to the utility model
Restriction.
Brief description of the drawings
Fig. 1 is that prior art is used for the sectional view of automotive alternator；
Fig. 2 is Fig. 1 front view；
Fig. 3 is the dimensional structure diagram of the first view directions of the first embodiment of cover assembly of the present utility model；
Fig. 4 is the dimensional structure diagram of the second view directions of the first embodiment of cover assembly of the present utility model；
Fig. 5 is the dimensional structure diagram of the first cover body of the first embodiment of cover assembly of the present utility model；
Fig. 6 is the dimensional structure diagram of the second cover body of the first embodiment of cover assembly of the present utility model；
Fig. 7 is the dimensional structure diagram of the 3rd cover body of the first embodiment of cover assembly of the present utility model；
Fig. 8 is the dimensional structure diagram of the second embodiment of cover assembly of the present utility model；
Fig. 9 is applied to the sectional view of generator for the second embodiment of cover assembly of the present utility model.
Wherein, reference
In the prior art：
1 belt pulley
2 fans
3 drive end bearing brackets
4 fore bearings
5 stators
6 rotors
7 rear end caps
Bearing after 8
9 adjusters
10 rectifier bridges
11 shields
In the utility model：
100 cover assemblies
110 cover bodies
The cover bodies of 110a first
111a drift bolts hole
The cover bodies of 110b second
111b drift bolts hole
The cover bodies of 110c the 3rd
111c drift bolts hole
112c projection limiting sections
120 radial direction walls
130 axial walls
140 wing bolts
150 is raised
P1 main air ducts
P2 aids in air channel
Embodiment
Technical solutions of the utility model are described in detail with specific embodiment below in conjunction with the accompanying drawings, with further
Understand the purpose of this utility model, scheme and effect, but be not intended as the limit of the utility model scope of the appended claims
System.
As depicted in figs. 1 and 2, automotive alternator of the present utility model, including motor shaft 12, belt pulley 1, fan
2nd, drive end bearing bracket 3, fore bearing 4, stator 5, rotor 6, rear end cap 7, rear bearing 8, adjuster 9, rectifier bridge 10 and shield.
Because of the constituting of the automotive alternator, the structure of each part, mutual alignment relation and annexation and
Its function etc. is more ripe prior art, therefore be will not be repeated here, below only to the shield group involved by the utility model
Part is described in detail.
Because engine is compact to design, generator shroud is typically on axial space apart from the only several millis of generator gap
Rice, generator application bad environments in addition, particular for muddy water such as agricultural machinery, dust, the complex environment such as crops chip is for a long time
During operation, blocking for generator shroud can be caused, generator is deteriorated due to radiating, temperature rise, so that cause generator ablation,
Service life reduction.This requires generator to design quick-disassembly structure on the basis of lifting protection, in order to periodically be carried out to generator
Cleaning is safeguarded.But it is due to the conventional electric generators in axially restricted space, such as removes generator shroud except generator is protected
Cover outside axially extending space, in addition it is also necessary to the surplus in demounting tool space.
Cover assembly of the present utility model is the cover assembly of radial direction split, by multiple part groups with middle fixing hole
Into realizing the demand of Quick Release by simple structure.
Specifically, as shown in Figure 3 and Figure 4, cover assembly 100 of the present utility model is radial direction Split type structure, including multiple
Cover body 110, multiple cover bodies 110, which are mutually combined the cover assembly 100 to be formed, to be included：Along the radial wall radially extended of motor shaft 12
Face 120 and along the axially extending of motor shaft 12 and the axial wall 130 that extends on the outside of rear end cap 7 (refer to Fig. 9).Shield group
Part 100 is made up of multiple cover bodies 110, and multiple cover bodies 110 can realize radial separation with combining, during dismounting, can be separated from all directions
With combining to pull down or assemble cover assembly 100, the space required for the axial direction of generator is effectively reduced.
With reference to shown in Fig. 5 to Fig. 7, in the present embodiment, the first cover body 110a of cover assembly 100 including radial direction split, the
Two cover body 110b and the 3rd cover body 110c, the first cover body 110a, the second cover body 110b and the 3rd cover body 110c Radial Combinations
Radial direction wall 120 and axial wall 130 are formed afterwards.Each cover body 110 is respectively provided with drift bolt hole, wherein, the first cover body 110a tools
There are drift bolt hole 111a, the second cover body 110b that there is drift bolt hole 111b, the 3rd cover body 110c to have drift bolt hole 111c, each cover body combination
When, drift bolt hole 111a, 111b and 110c on the axial direction parallel to motor shaft 12 be stacked, a positioning link, for example
Using the wing bolt 140 of convenient use, wing bolt 140 sequentially passes through each drift bolt hole 111a, 111b and 110c and connected
On rear end cap 7.When needing dismounting cover assembly 100, it is only necessary to disassemble wing bolt 140 manually, the first cover body 110a, the
Two cover body 110b and the 3rd cover body 110c from radial separation and can be pulled down.
As shown in Figures 5 to 7, the first cover body 110a, the second cover body 110b and the 3rd cover body 110c be used for fasten
Drift bolt hole 111a, 111b and 110c are arranged at center different height position.During installation, according to drift bolt hole 111a, 111b and
110c order is overlapping, is combined into cover assembly 100, and be fixed on generator rear end by wing bolt 140.
Wing bolt 140 can be depressed in radial direction wall 120, i.e. host machine part from wing bolt 140 to generator be recessed with
Reduce generator shaft to length.Above-mentioned wing bolt 140 can be designed on the basis of guarantee is connected moment of torsion with generator rear end
For minimum length, the length of axial space is saved to try one's best.
Further, the circumferentially positioned portion of cover body can be set on any one cover body 110 wherein, set on rear end cap with
The corresponding circumferentially positioned portion of end cap of the circumferentially positioned portion of cover body 110, to limit the circumferential free degree of cover assembly 100, prevents shield
Shade assembly 100 is circumferentially rotated.For example shown in Fig. 3, raised limiting section 112c is set on the 3rd cover body 110c, it is recessed with rear end cap
Groove position limiting structure is coordinated, to carry out effective positioning to cover assembly 100.
It should be noted that the present embodiment illustrate only a kind of radial direction split of cover assembly 100 into the form of three cover bodies,
But the utility model is not limited, cover assembly 100 forms the number of sector region without specific restriction, can as desired certainly
By distributing.For cross-species transferability, each cover body can structure it is identical, angle is identical, certainly, is also designed to difference, as long as passing through
Radial direction separate form makes cover assembly 100 be easy to the technology contents of assembly and disassembly within protection domain of the present utility model.
Nylon or Other Engineering plastic material system can be used in first cover body 110a, the second cover body 110b, the 3rd cover body 110c
Into.The part for the radial direction wall 120 being formed radially is non-ventilating surface, and the part for the axial wall 130 being axially formed sets ventilation
Hole, as shown in figure 9, the air vent of axial wall 130 is used for the main air duct P1 that radial direction air intake is provided to generator.For increase protection
And draught area, axial wall 130 extends to generator middle part to generator drive end.
Wherein, axial wall 130 can inlay mesh grid by support and be formed, and mesh grid can be fine and closely woven nylon mesh grid or gold
Belong to silk mesh grid, be directly injection-moulded on support.If selected mesh size is excessive, blocking foreign body can not be played a part of；
If aperture is too small, ventilation effect can be poor.Consider factors above, mesh screen aperture selection 1.5-2mm or so is advisable.
In addition, axial wall 130 also can open elongated hole by working of plastics and be formed.
As shown in Figure 8 and Figure 9, in the present embodiment, cover assembly 100 is also set including multiple raised 150, multiple raised 150
It is placed on radial direction wall 120, the plurality of raised 150 can preferably correspond to laying on the outside of the edge of rear end cap 7 in palisade, and many
There is an anti-position gap excessively respectively between individual raised 150 end and rear end cap 7, positioned with preventing from crossing in assembling process.
The plurality of raised 150 mainly influence main air duct P1 ventilation in the length that end cap 7 extends axially backward of motor shaft 12
Area.For the angle for strengthening radiating from available ventilation, the length of the projection 150 is longer, and main air duct P1 available ventilation is strengthened
Area of dissipation is bigger, and ventilation and heat performance is better.But the length receives the limitation that generator is installed on engine space simultaneously,
Therefore the length is designed as maximum in allowed band.
The plurality of raised 150 fine and closely woven arrangement, per gap is left between two neighboring raised 150, in order to divulge information.In generator
In the course of work, even if there is the space that foreign matter is entered between the axial wall 130 of cover assembly 100 and the outer wall of rear end cap 7
In, it can also be blocked in multiple raised 150 outsides, the accommodation space without entering directly into generator.
Multiple raised 150 shapes are not limited to shown cylindrical shape in the utility model, as long as can play ventilation and hinder
The other shapes for keeping off foreign matter effect are raised, belong to the scope of the claims appended by the utility model.
In addition, as shown in figure 9, leave an annular gap between axial wall 130 and the outer wall of commutator end bearing support bracket 7, it is auxiliary to be formed
Help air channel P2.If the annular gap is excessive, foreign matter is easily entered and blocked；If the gap is such as too small, it can not rise
To the effect of secondary ventilation.Therefore size draught area according to needed for generator of the annular gap is designed, between this ring-type
The draught area minimum value of gap formation is the minimum vent area needed for generator.
Under normal ventilation state, air vent of the extraneous air mainly on the axial wall 130 of cover assembly 100 is entered
On the inside of shield, then generator is entered by the gap between the palisade projection 150 of inner side, so as to generator part
Radiated.When shield circumference draught area, i.e. main air duct P1 is by after foreign matters from being blocked, it can be aerated by auxiliary air channel P2,
I.e. the main annular gap between axial wall 130 and rear end cover outer wall of extraneous air enters, then passes through inner side palisade projection 150
Gap enters generator, so as to be radiated to generator part.
The utility model is designed by radial direction split, shield is saved axial space and is easy to assembly and disassembly；It is main by setting
Air intake passage and auxiliary air inlet passage, not only make well-ventilated in generator operation, and effectively increase generator
Service life.
Certainly, the utility model can also have other various embodiments, spiritual and its essence without departing substantially from the utility model
In the case of, those skilled in the art work as can make various corresponding changes and deformation, but these according to the utility model
Corresponding change and deformation should all belong to the scope of the claims appended by the utility model.
Claims (10)
1. a kind of cover assembly, is connected on an automotive alternator, the generator includes drive end bearing bracket, rear end cap and electricity
Arbor, the motor shaft is installed and is supported on the drive end bearing bracket and rear end cap, and the cover assembly is connected to the rear end cap
Outside, it is characterised in that the cover assembly is radial direction Split type structure, including multiple cover bodies, and multiple cover bodies combinations are with shape
Into the radial direction wall radially extended along the motor shaft and along the axially extending of the motor shaft and extend to the rear end
The axial wall of outer side of lid.
2. cover assembly according to claim 1, it is characterised in that each cover body is respectively provided with drift bolt hole, Yu Gesuo
When stating cover body combination, each drift bolt hole on the axial direction of the parallel motor shaft in being stacked, and a positioning link is through respectively
Drift bolt hole is simultaneously connected on the rear end cap.
3. cover assembly according to claim 2, it is characterised in that the positioning link is wing bolt.
4. cover assembly according to claim 1, it is characterised in that it is circumferentially positioned that one of them described cover body includes cover body
Portion, the rear end cap has the end cap circumferentially positioned portion corresponding with the circumferentially positioned portion of the cover body.
5. cover assembly according to claim 1, it is characterised in that have between the axial wall and the rear end cap
Form an annular gap in auxiliary air channel.
6. the cover assembly according to any one of claim 1 to 5, it is characterised in that also including multiple projections, multiple described
Projection extends from the radial wall towards the direction of the rear end cap, and corresponding to setting on the outside of the edge of the rear end cap.
7. the cover assembly according to any one of claim 1 to 5, it is characterised in that the radial direction wall is non-ventilating surface,
The axial walls face has air inlet.
8. cover assembly according to claim 7, it is characterised in that the axial wall inlays braiding net form by support
Into.
9. cover assembly according to claim 7, it is characterised in that the air inlet is multiple axles along the motor shaft
To the strip opening of setting.
10. a kind of automotive alternator, including generator shroud, drive end bearing bracket, rear end cap and motor shaft, the motor shaft peace
Dress is supported on the drive end bearing bracket and rear end cap, and the generator shroud is connected to the outside of the rear end cap, it is characterised in that
The generator shroud is the cover assembly described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157811.1U CN206471959U (en) | 2017-02-21 | 2017-02-21 | A kind of automotive alternator and its cover assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157811.1U CN206471959U (en) | 2017-02-21 | 2017-02-21 | A kind of automotive alternator and its cover assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471959U true CN206471959U (en) | 2017-09-05 |
Family
ID=59707252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720157811.1U Expired - Fee Related CN206471959U (en) | 2017-02-21 | 2017-02-21 | A kind of automotive alternator and its cover assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206471959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182061A (en) * | 2021-04-07 | 2021-07-30 | 南昌矿山机械有限公司 | Multi-cylinder cone crusher protection casing |
-
2017
- 2017-02-21 CN CN201720157811.1U patent/CN206471959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182061A (en) * | 2021-04-07 | 2021-07-30 | 南昌矿山机械有限公司 | Multi-cylinder cone crusher protection casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170905 |