CN203797899U - Air door positioning structure - Google Patents
Air door positioning structure Download PDFInfo
- Publication number
- CN203797899U CN203797899U CN201420211331.5U CN201420211331U CN203797899U CN 203797899 U CN203797899 U CN 203797899U CN 201420211331 U CN201420211331 U CN 201420211331U CN 203797899 U CN203797899 U CN 203797899U
- Authority
- CN
- China
- Prior art keywords
- air door
- axle
- conical bore
- air
- location structure
- 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
Links
- 230000008676 import Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses an air door positioning structure which comprises a cylindrical air door shaft and a support hole formed in an air conditioner shell and used for supporting the air door shaft. The support hole comprises a cylindrical hole section and a conical hole section. The matching gap between the air door shaft and the conical hole section decreases gradually, and the air door shaft is in interference fit with the conical hole section at the small end of the conical hole section. By the arrangement, the air leakage problem of the air door positioning structure is solved, the problems of axial endplay and radial shake of the air door shaft due to the fact that an existing air door positioning structure is large in matching gap are solved, and the small section of interference fit relation of the conical hole section and the air door shaft does not evidently affect the free rotation of the air door shaft.
Description
Technical field
The utility model relates to a kind of air conditioning for automobiles parts, particularly a kind of axle of the air door location structure of air conditioning for automobiles.
Background technology
Existing air conditioning for automobiles, between axis hole on its axle of the air door and air-conditioner housing, be to adopt gap fiting mode, but gap value is wayward in Design and manufacture process, if fit clearance is less than normal, can cause air door to rotate difficulty, the fit clearance axle of the air door that can allow again bigger than normal produces axial float and radially rocks in rotating, and causes Air Leakage; Therefore the more difficult control air door of existing air door structure axial float, radially rock and Air Leakage.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of air door location structure, with the problem that solves air door axial float, radially slides and leak out.
The utility model air door location structure, comprise cylindrical axle of the air door and be arranged on the support holes that supports axle of the air door on air-conditioner housing, described support holes is made up of one section of cylindrical hole and one section of conical bore, fit clearance between described axle of the air door and conical bore is by reducing greatly gradually, and in conical bore small end axle of the air door and conical bore interference fit.
Further, the end of described conical bore is evenly arranged the otch that You Si road runs through hole wall.
Further, the bus of described conical bore and the angle of axis are 1 °～2 °.
Further, the diameter A of described cylindrical hole, the diameter of described axle of the air door is B, and the diameter of conical bore small end is E, and the width of otch is C, wherein B=A+0.15mm, E=A-0.1mm, C=2～2.5mm.
Further, the end of described cylindrical hole is provided with the chamfering that imports axle of the air door.
The beneficial effects of the utility model: the utility model air door location structure, it is by being arranged to conical bore by one section of support holes, make the cooperation matching relationship between axle of the air door and conical bore be decreased to gradually interference fit by matched in clearance, solve air door location structure Air Leakage by the fit clearance structure and a bit of over-surplus fit structure that reduce gradually, also eliminated the axle of the air door axial float that existing air door location structure fit clearance causes greatly and radially rocked problem, and this bit of interference fit relation between conical bore and axle of the air door also can not cause obvious impact to freely rotating of axle of the air door, fit clearance size in this location structure is more easily controlled during fabrication simultaneously, and manufacture difficulty is lower.
Brief description of the drawings
Fig. 1 is the sectional structure chart of the utility model air door location structure;
Fig. 2 is the assembly structure schematic diagram of the utility model air door location structure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment air door location structure, comprise cylindrical axle of the air door 1 and be arranged on the support holes that supports axle of the air door 1 on air-conditioner housing, described support holes is made up of one section of cylindrical hole 2 and one section of conical bore 3, fit clearance between described axle of the air door 1 and conical bore 3 is by reducing greatly gradually, and in conical bore 3 small end axle of the air door 1 and conical bore 3 interference fit.
The present embodiment air door location structure, it is by being arranged to conical bore by one section of support holes, make the cooperation matching relationship between axle of the air door 1 and conical bore 3 be decreased to gradually interference fit by matched in clearance, can solve air door location structure Air Leakage by a bit of interference fit, also can eliminate the axle of the air door axial float that existing air door location structure fit clearance causes greatly and radially rock problem, and this bit of interference fit relation between conical bore and axle of the air door also can not cause obvious impact to freely rotating of axle of the air door.
As the improvement to the present embodiment, the end of described conical bore 3 is evenly arranged the otch 4 that You Si road runs through hole wall.By otch is set, can avoid conical bore because the reason of expanding with heat and contract with cold produces distortion, can extend air door service life.
As the improvement to the present embodiment, the bus of described conical bore 3 and the angle theta of axis are 1 °, and in different embodiment, angle theta also can be other value within the scope of 1 °～2 ° certainly.In this range of taper, can control preferably that air door radially rocks, axial float and Air Leakage.
Further, the diameter A of described cylindrical hole 2, the diameter of described axle of the air door 1 is B, the diameter of conical bore 3 small ends is E, the width of otch 4 is C, wherein B=A+0.15mm, E=A-0.1mm, C=2mm (kerf width also can be other value within the scope of 2～2.5mm), axle of the air door location structure in this improvement, the fit clearance of its cylindrical hole 2 and axle of the air door 1 is reasonable, can ensure axle of the air door 1 flexible rotating, the small end of conical bore 3 and the value of interference fit of axle of the air door 1 are reasonable simultaneously, neither can cause too much impact to the rotation of axle of the air door 1, can well control again the device for elimination of axial-and radial-play amount of axle of the air door 1, and Air Leakage, and the width of otch 4 also can ensure that conical bore 3 can not produce excessive deformation amount because of the reason of expanding with heat and contract with cold.
As the improvement to the present embodiment, the end of described cylindrical hole 2 is provided with the chamfering 5 that imports axle of the air door 1, and chamfering 5 can make the assembling of axle of the air door easier.
Finally explanation, above embodiment is only unrestricted in order to the technical solution of the utility model to be described,
Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. an air door location structure, it is characterized in that: comprise cylindrical axle of the air door and be arranged on the support holes that supports axle of the air door on air-conditioner housing, described support holes is made up of one section of cylindrical hole and one section of conical bore, fit clearance between described axle of the air door and conical bore is by reducing greatly gradually, and in conical bore small end axle of the air door and conical bore interference fit.
2. air door location structure according to claim 1, is characterized in that: the end of described conical bore is evenly arranged the otch that You Si road runs through hole wall.
3. air door location structure according to claim 1, is characterized in that: the bus of described conical bore and the angle of axis are 1 °～2 °.
4. air door location structure according to claim 3, is characterized in that: the diameter A of described cylindrical hole, and the diameter of described axle of the air door is B, and the diameter of conical bore small end is E, and the width of otch is C, wherein B=A+0.15mm, E=A-0.1mm, C=2～2.5mm.
5. air door location structure according to claim 1, is characterized in that: the end of described cylindrical hole is provided with the chamfering that imports axle of the air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211331.5U CN203797899U (en) | 2014-04-28 | 2014-04-28 | Air door positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211331.5U CN203797899U (en) | 2014-04-28 | 2014-04-28 | Air door positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797899U true CN203797899U (en) | 2014-08-27 |
Family
ID=51380104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420211331.5U Expired - Fee Related CN203797899U (en) | 2014-04-28 | 2014-04-28 | Air door positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386992A (en) * | 2018-03-30 | 2018-08-10 | 珠海格力电器股份有限公司 | A kind of air-conditioning and its water receiving bowl |
-
2014
- 2014-04-28 CN CN201420211331.5U patent/CN203797899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386992A (en) * | 2018-03-30 | 2018-08-10 | 珠海格力电器股份有限公司 | A kind of air-conditioning and its water receiving bowl |
| CN108386992B (en) * | 2018-03-30 | 2019-10-22 | 珠海格力电器股份有限公司 | A kind of air-conditioning and its water receiving bowl |
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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: 20140827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |