CN207147592U - Automobile oil level sensor - Google Patents
Automobile oil level sensor Download PDFInfo
- Publication number
- CN207147592U CN207147592U CN201721165795.7U CN201721165795U CN207147592U CN 207147592 U CN207147592 U CN 207147592U CN 201721165795 U CN201721165795 U CN 201721165795U CN 207147592 U CN207147592 U CN 207147592U
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- CN
- China
- Prior art keywords
- magnet
- fluid
- detection pipes
- oil level
- level sensor
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of automobile oil level sensor, it is characterised in that：It is provided with circuit mounting box, fluid detection pipes and fluid signal acquisition pipe have been arranged side by side in the lower end of the circuit mounting box, the upper end of fluid detection pipes is provided with row pressure mouth lower end and is provided with the bottom with filter opening, float and the first magnet are provided with the tube chamber of fluid detection pipes, fluid signal acquisition pipe is seal pipe, the second magnet is provided with the fluid signal acquisition pipe, first magnet and the second magnet attract each other on the dividing plate being fitted between fluid detection pipes and the fluid signal acquisition pipe, under the traction of float, first magnet and the second magnet are in dividing plate both sides scroll-up/down, resistance wire is provided with the binding face of dividing plate and the second magnet.Its effect is：Simple in construction, installation and debugging are convenient, both can guarantee that reliable signal transmission, and have solved the defects of existing sensor serious wear again, and can accomplish good electrical isolation.
Description
Technical field
Automotive electronic technology is the utility model is related to, is a kind of automobile oil level sensor specifically.
Background technology
Fuel level sensor has been widely used as a critical elements in vehicle electronics at present, existing
Fuel level sensor be broadly divided into three kinds of capacitor induction type, resistance induction type and inductance induction type, by by oil level signal turn
Corresponding electric signal is turned to realize the automatic monitoring of automobile oil level.
For resistance induction type fuel level sensor, prior art is mostly using float, bar linkage structure, as in
State's patent application：A kind of fuel level sensor disclosed in 200920312681.X, by setting resistor disc and electric contact point, electric contact point leads to
Cross rotating shaft, link arm and connecting rod to be connected with float mechanism, the height of float changes with the change of liquid level, so as to drive electric contact point
Rotation, make the different position of its contact on resistor disc, the height of oil level just can be obtained by resistance detection.
Such scheme is although simple in construction, easy to control, but it still has some technical problems：
(1) it is higher to the hardness requirement of connecting rod due to using float, bar linkage structure, once because external force reason during use
Cause connecting rod to deform upon, the accuracy of detection is had a great influence；
(2) float is exposed outside by link supports for a long time, when fuel tank refuels or car body rocks, easily directly to float
Impact is produced, causes float to damage, the service life of equipment is shorter；
(3) form that sensor internal generally use contact slides contacts with resistor disc, and sliding friction loss is larger, influences
Equipment life.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of automobile oil level sensor, by floating
Structure of contact terminal on the hitch structure and resistor disc of son improves, and so as to reduce the abrasion of equipment, lifts service life.
To reach above-mentioned purpose, concrete technical scheme is as follows used by the utility model：
A kind of automobile oil level sensor, its key are：Including circuit mounting box (1), the lower end of the circuit mounting box (1)
Fluid detection pipes (2) and fluid signal acquisition pipe (3) are arranged side by side, the upper end of the fluid detection pipes (2) is provided with row pressure
Mouth (4), the lower end of fluid detection pipes (2) is provided with the bottom (5) with filter opening, set in the tube chamber of the fluid detection pipes (2)
Float (6) is equipped with, the first magnet (7) is carried on float (6), the fluid signal acquisition pipe (3) is seal pipe, in the oil
It is provided with the second magnet (8) in liquid signal acquisition pipe (3), first magnet (7) and second magnet (8) attract each other patch
Close on the dividing plate (9) between the fluid detection pipes (2) and the fluid signal acquisition pipe (3), in leading for the float (6)
Under drawing, first magnet (7) and second magnet (8) are in the dividing plate (9) both sides scroll-up/down, in the dividing plate (9)
With being provided with resistance wire (10) on the binding face of second magnet (8).
Based on above-mentioned design it can be found that the oil plant in fuel tank smoothly can enter in fluid detection pipes (2) so that float
(6) height is identical with level height, and under the promotion of float (6), the first magnet (7) can draw the second magnet (8) in institute
State and rolled on dividing plate (9), due to being provided with resistance wire (10) on dividing plate (9), the second magnet (8) is in different positions, its resistance
The resistance value that silk (10) embodies is different, the resistance by the detection circuit in circuit mounting box (1) to resistance wire (10)
Detected, can easily both obtain the oil level information in fuel tank, due to using rolling between the second magnet (8) and resistance wire (10)
Dynamic friction, abrasion is smaller, can effectively strengthen the service life of equipment.
Further, first magnet (7) and second magnet (8) are cylindric, in second magnet (8)
Outer surface is provided with conductive layer.
Yet further, the resistance wire (10) includes two parallel poles in left and right, its upper end and the circuit mounting box
(1) signal processing circuit in is electrically connected with, and the electrode tap for being provided with comb teeth-shaped is alternateed between two parallel poles,
Second magnet (8) rolls on two parallel poles, and by realizing two parallel poles with the electrode tap that it is bonded
Between electrically conduct.
Alternatively, the fluid detection pipes (2) and fluid signal acquisition pipe (3) are rectangular tube, and the dividing plate (9) is one
The surface plate that block is erect, the usual dividing plate (9) is insulation board.
Alternatively, the bottom (5) is fastened at the lower ending opening of the fluid detection pipes (2).In order to prevent fluid from visiting
Enter residue in test tube (2), screen pack is provided with the bottom (5).
Remarkable result of the present utility model is：Simple in construction, installation and debugging are convenient, and being quick on the draw for sensor can
Ensure the transmission of reliable signal, solve the defects of existing sensor serious wear again, and can accomplish well electrically every
From realizing the popularization of various special applications scenes.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the structural representation of resistance wire on dividing plate (9).
Embodiment
Specific embodiment of the present utility model and operation principle are described in further detail below in conjunction with the accompanying drawings.
As Figure 1-Figure 2, a kind of automobile oil level sensor, including circuit mounting box 1, the lower end of the circuit mounting box 1
Fluid detection pipes 2 and fluid signal acquisition pipe 3 are arranged side by side, the upper end of the fluid detection pipes 2 is provided with row pressure mouth 4, oil
The lower end of liquid detection pipes 2 is provided with the bottom 5 with filter opening, and the fluid in such fuel tank can smoothly enter fluid detection pipes 2
In, ensure inside cavity level height with it is highly consistent in fuel tank.
Float 6 is provided with the tube chamber of the fluid detection pipes 2, the first magnet 7, the oil are carried on float 6
Liquid signal acquisition pipe 3 is seal pipe, and the second magnet 8, first magnet 7 and institute are provided with the fluid signal acquisition pipe 3
The second magnet 8 is stated to attract each other on the dividing plate 9 being fitted between the fluid detection pipes 2 and the fluid signal acquisition pipe 3,
Under the traction of the float 6, first magnet 7 and second magnet 8 are in the both sides scroll-up/down of dividing plate 9, described
Dividing plate 9 on the binding face of second magnet 8 with being provided with resistance wire 10.
In the specific implementation, the installation of the first magnet 7 and the second magnet 8 for convenience, at the same reduce magnet and dividing plate it
Between abrasion, the first magnet 7 and the second magnet 8 are set to cylindric, for the ease of the fax between the second magnet 8 and resistance wire 10
Lead, the outer surface of second magnet 8 is provided with conductive layer.
As seen in Figure 2, in order to realize that the second magnet 8 resistance wire 10 in diverse location shows different resistance
Value, in the present embodiment, resistance wire 10 include two parallel poles in left and right, its upper end and the signal in the circuit mounting box 1
Process circuit is electrically connected with, and the electrode tap for being provided with comb teeth-shaped, second magnetic are alternateed between two parallel poles
Body 8 rolls on two parallel poles, and passes through electrically leading between realizing two parallel poles with the electrode tap that it is bonded
It is logical.
In order to facilitate the installation of dividing plate 9, fluid detection pipes 2 and fluid the signal acquisition pipe 3 is rectangular tube, it is described every
Plate 9 is the surface plate of the insulation of one piece of setting, so as to ensure that the first magnet 7 and the second magnet 8 can be close in the both sides of dividing plate 9
Fitting.
In order to facilitate the maintenance of equipment, the bottom 5 is fastened at the lower ending opening of the fluid detection pipes 2, in order to anti-
Only enter residue in fluid detection pipes 2, screen pack is additionally provided with the bottom 5.
Operation principle of the present utility model is：
By setting special fluid detection pipes 2 to obtain the Height of oil in fuel tank, so as to avoid float 6 and
Directly by external force is impacted when refueling or when vehicle rocks, the height of float 6 becomes first magnet 7 with the change of oil level
Change, when oil level rises, float 6 can promote the first magnet 7 to move up, and when oil level declines, the magnet 7 of float 6 and first can be
Decline automatically in the presence of self gravitation, the motion of the first magnet 7 can draw the second magnet 8 in fluid signal acquisition pipe 3
It is synchronized with the movement so that fluid detection pipes 2 and fluid signal acquisition pipe 3 can realize good electrical isolation, ensure that electrically
The stability of element manipulation.Resistance wire 10 shown in Fig. 2 is set on dividing plate 9, and during the height difference of the second magnet 8, two flat
The link position of row electrode is different, and the resistance for showing it is different, passes through the signal processing circuit pair in circuit mounting box 1
The resistance of resistance wire 10 is detected, and both can recognize that the situation of oil level in fuel tank, is controlled very convenient.Due to due to the second magnetic
Rolling friction is used between body 8 and resistance wire 10, abrasion is smaller, can effectively strengthen the service life of equipment.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, either to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment
The scope of technical scheme, it all should cover among claim of the present utility model and the scope of specification.
Claims (7)
- A kind of 1. automobile oil level sensor, it is characterised in that：Including circuit mounting box (1), the lower end of the circuit mounting box (1) is simultaneously Row is provided with fluid detection pipes (2) and fluid signal acquisition pipe (3), and the upper end of the fluid detection pipes (2) is provided with row pressure mouth (4), the lower end of fluid detection pipes (2) is provided with the bottom (5) with filter opening, is set in the tube chamber of the fluid detection pipes (2) There is float (6), the first magnet (7) is carried on float (6), the fluid signal acquisition pipe (3) is seal pipe, in the fluid The second magnet (8) is provided with signal acquisition pipe (3), first magnet (7) attracts each other with second magnet (8) and is bonded On dividing plate (9) between the fluid detection pipes (2) and the fluid signal acquisition pipe (3), the traction in the float (6) Under, first magnet (7) and second magnet (8) in the dividing plate (9) both sides scroll-up/down, the dividing plate (9) with Resistance wire (10) is provided with the binding face of second magnet (8).
- 2. automobile oil level sensor according to claim 1, it is characterised in that：First magnet (7) and described second Magnet (8) is cylindric, and the outer surface of second magnet (8) is provided with conductive layer.
- 3. automobile oil level sensor according to claim 1 or 2, it is characterised in that：The resistance wire (10) includes left and right Two parallel poles, its upper end is electrically connected with the signal processing circuit in the circuit mounting box (1), in two parallel poles Between alternate the electrode tap for being provided with comb teeth-shaped, second magnet (8) rolls on two parallel poles, and passes through Electrically conducting between realizing two parallel poles with the electrode tap that it is bonded.
- 4. automobile oil level sensor according to claim 3, it is characterised in that：The fluid detection pipes (2) and fluid letter Number collection tube (3) is rectangular tube, and the dividing plate (9) is the surface plate of one piece of setting.
- 5. automobile oil level sensor according to claim 4, it is characterised in that：The dividing plate (9) is insulation board.
- 6. automobile oil level sensor according to claim 1, it is characterised in that：The bottom (5) is fastened on the fluid At the lower ending opening of detection pipes (2).
- 7. the automobile oil level sensor according to claim 1 or 6, it is characterised in that：It was provided with the bottom (5) Filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165795.7U CN207147592U (en) | 2017-09-12 | 2017-09-12 | Automobile oil level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165795.7U CN207147592U (en) | 2017-09-12 | 2017-09-12 | Automobile oil level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207147592U true CN207147592U (en) | 2018-03-27 |
Family
ID=61678717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721165795.7U Expired - Fee Related CN207147592U (en) | 2017-09-12 | 2017-09-12 | Automobile oil level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207147592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798954A (en) * | 2019-02-25 | 2019-05-24 | 浙江众泰汽车制造有限公司 | A kind of automobile liquid level sensor |
| CN111272260A (en) * | 2020-03-10 | 2020-06-12 | 潘景阳 | Be used for geotechnical engineering exploration groundwater monitoring detector |
-
2017
- 2017-09-12 CN CN201721165795.7U patent/CN207147592U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798954A (en) * | 2019-02-25 | 2019-05-24 | 浙江众泰汽车制造有限公司 | A kind of automobile liquid level sensor |
| CN111272260A (en) * | 2020-03-10 | 2020-06-12 | 潘景阳 | Be used for geotechnical engineering exploration groundwater monitoring detector |
| CN111272260B (en) * | 2020-03-10 | 2021-05-18 | 浙江中材工程勘测设计有限公司 | Be used for geotechnical engineering exploration groundwater monitoring detector |
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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 |
Granted publication date: 20180327 Termination date: 20190912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |