CN205740856U - A kind of electronic vacuum pump rubber diaphragm - Google Patents
A kind of electronic vacuum pump rubber diaphragm Download PDFInfo
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- CN205740856U CN205740856U CN201620105045.XU CN201620105045U CN205740856U CN 205740856 U CN205740856 U CN 205740856U CN 201620105045 U CN201620105045 U CN 201620105045U CN 205740856 U CN205740856 U CN 205740856U
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Abstract
This utility model relates to a kind of electronic vacuum pump rubber diaphragm, formed by rubber bodies is bonding with high temperature resistant resistance to compression polyurethane skeleton, described rubber bodies includes diaphragm outer face, the diaphragm inwall with arc-shaped transition connecting portion, diaphragm cylindrical, described diaphragm outer face is flat shape structure, and top, described diaphragm outer face is 3.3mm with the exterior dome surface vertical dimension of diaphragm cylindrical.The rubber diaphragm that this utility model provides, its diaphragm outer face uses flat shape structure, and its top, diaphragm outer face is improved to 3.3mm to exterior dome surface vertical dimension by traditional 7.2mm.It is so designed that the tension force making product in reciprocating motion obtains maximum performance, solves the problem that noise that tradition diaphragm causes due to stifling is big, also make startup sensitivity reach optimum efficiency, thus reduce braking time.
Description
Technical field
This utility model relates to rubber diaphragm technical field, is specifically related to a kind of electronic vacuum pump rubber diaphragm.
Background technology
The existing rubber diaphragm for vacuum electronic pump, its structure is as shown in Figure 1, formed by rubber bodies 1 ' is bonding with high temperature resistant resistance to compression polyurethane skeleton 2 ', its diaphragm outer face 3 ' is arc bowl structure, and its top, diaphragm outer face 3 ' is 7.2mm with the exterior dome surface 8 ' vertical dimension of diaphragm cylindrical 4 '；The radius of corner of the arc-shaped transition connecting portion 6 ' of its diaphragm inwall 5 ' is 8.5mm；Its diaphragm thickness i.e. exterior dome surface 8 ' is 1.75mm to the vertical dimension of diaphragm inwall Yu diaphragm cylindrical junction 7 '.
Owing to the vacuum diaphragm of domestic production exists, volume is big, take up room big problem, causes weight gain, is unfavorable on new forms of energy car using；Again because its diaphragm outer face 3 ' uses the bowl-shape design of arc, cause its multiple quality not enough, such as high-low temperature resistant weak effect, aging speed is fast, service life is short, start the problems such as poor sensitivity, the diaphragm used on the most domestic new forms of energy car is typically all import, it is expensive, it is about domestic 2 times, and the market demand can not be met.How to improve the service life of electronic vacuum pump diaphragm, reduce use cost, meet the market demand, be one of the important tackling key problem of the art.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of electronic vacuum pump rubber diaphragm, to overcome above-mentioned deficiency.
For solving above-mentioned technical problem, this utility model offer techniques below scheme: a kind of electronic vacuum pump rubber diaphragm, formed by rubber bodies is bonding with high temperature resistant resistance to compression polyurethane skeleton, described rubber bodies includes diaphragm outer face, the diaphragm inwall with arc-shaped transition connecting portion, diaphragm cylindrical, described diaphragm outer face is flat shape structure, and top, described diaphragm outer face is 3.3mm with the exterior dome surface vertical dimension of diaphragm cylindrical.
On the basis of such scheme preferentially, described exterior dome surface to diaphragm inwall is 1.7mm with the vertical dimension of diaphragm cylindrical junction.
On the basis of such scheme preferentially, the radius of corner of the arc-shaped transition connecting portion of described diaphragm inwall is 9mm.
This utility model compared with prior art has the beneficial effect that the rubber diaphragm that this utility model provides, and its diaphragm outer face uses flat shape structure, and its top, diaphragm outer face is improved to 3.3mm to exterior dome surface vertical dimension by traditional 7.2mm.It is so designed that the tension force making product in reciprocating motion obtains maximum performance, solves the problem that noise that tradition diaphragm causes due to stifling is big, also make startup sensitivity reach optimum efficiency, thus reduce braking time.
Accompanying drawing explanation
Fig. 1 is the structural representation of tradition rubber diaphragm；
Fig. 2 provides the structural representation of rubber diaphragm for this utility model.
Figure is numbered:
1 ', 1-rubber bodies；2 ', 2-are high temperature resistant resistance to compression polyurethane skeleton；3 ', 3-diaphragm outer face；
4 ', 4-diaphragm cylindrical；5 ', 5-diaphragm inwall；6 ', 6-arc-shaped transition connecting portion；7 ', 7-diaphragm inwall and diaphragm cylindrical junction；8 ', 8-exterior dome surface.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
In description of the present utility model, it will be appreciated that, term " longitudinally ", " laterally ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model, rather than instruction or the device of hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Understand with reference to Fig. 2, a kind of electronic vacuum pump rubber diaphragm that this utility model provides, formed by rubber bodies 1 is bonding with high temperature resistant resistance to compression polyurethane skeleton 2, described rubber bodies 1 includes diaphragm outer face 3, the diaphragm inwall 5 with arc-shaped transition connecting portion 6, diaphragm cylindrical 4, described diaphragm outer face 3 is flat shape structure, and top, described diaphragm outer face 3 is 3.3mm with exterior dome surface 8 vertical dimension of diaphragm cylindrical 4.
The rubber diaphragm that this utility model provides, its diaphragm outer face 3 uses flat shape structure, and its top, diaphragm outer face 3 is improved to 3.3mm to exterior dome surface 8 vertical dimension by traditional 7.2mm.It is so designed that the tension force making product in reciprocating motion obtains maximum performance, solves the problem that noise that tradition diaphragm causes due to stifling is big, also make startup sensitivity reach optimum efficiency, thus reduce braking time.
Therein, rubber bodies 1 is the structure that composite is mixing with ethylene propylene diene rubber, has the high-low temperature resistant of uniqueness, durable effect, and wear-resistant measuring body ability is greatly increased.Concrete, rubber bodies by ethylene propylene diene rubber 150 parts, stearic acid 15 parts, white carbon black 60 parts, accelerator 7 parts is mixing in banbury forms.
Therein, diaphragm thickness i.e. exterior dome surface 8 to diaphragm inwall is 1.7mm with the vertical dimension of diaphragm cylindrical junction 7.Diaphragm thickness is improved to the 1.7mm of the application by traditional 1.75mm, thickness 0.05mm thinner than traditional diaphragm.
Therein, the radius of corner of the arc-shaped transition connecting portion 6 of diaphragm inwall 5 is 9mm；Its radius of corner is improved to the 9mm of the application by the 8.5mm of tradition diaphragm, makes diaphragm resistance of motion when moving back and forth be preferably minimized, reduces starting current, thus reached energy-conservation purpose.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (3)
1. an electronic vacuum pump rubber diaphragm, formed by rubber bodies is bonding with high temperature resistant resistance to compression polyurethane skeleton, described rubber bodies includes diaphragm outer face, the diaphragm inwall with arc-shaped transition connecting portion, diaphragm cylindrical, it is characterized in that: described diaphragm outer face is flat shape structure, top, described diaphragm outer face is 3.3mm with the exterior dome surface vertical dimension of diaphragm cylindrical.
Electronic vacuum pump rubber diaphragm the most according to claim 1, it is characterised in that: described exterior dome surface to diaphragm inwall is 1.7mm with the vertical dimension of diaphragm cylindrical junction.
Electronic vacuum pump rubber diaphragm the most according to claim 1, it is characterised in that: the radius of corner of the arc-shaped transition connecting portion of described diaphragm inwall is 9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105045.XU CN205740856U (en) | 2016-01-29 | 2016-01-29 | A kind of electronic vacuum pump rubber diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105045.XU CN205740856U (en) | 2016-01-29 | 2016-01-29 | A kind of electronic vacuum pump rubber diaphragm |
Publications (1)
| Publication Number | Publication Date |
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| CN205740856U true CN205740856U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620105045.XU Active CN205740856U (en) | 2016-01-29 | 2016-01-29 | A kind of electronic vacuum pump rubber diaphragm |
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| CN (1) | CN205740856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283395A (en) * | 2020-10-16 | 2021-01-29 | 中国航发北京航空材料研究院 | Valve diaphragm with high fatigue performance |
-
2016
- 2016-01-29 CN CN201620105045.XU patent/CN205740856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283395A (en) * | 2020-10-16 | 2021-01-29 | 中国航发北京航空材料研究院 | Valve diaphragm with high fatigue performance |
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