CN207763777U - A kind of fuel level sensor - Google Patents
A kind of fuel level sensor Download PDFInfo
- Publication number
- CN207763777U CN207763777U CN201721609137.2U CN201721609137U CN207763777U CN 207763777 U CN207763777 U CN 207763777U CN 201721609137 U CN201721609137 U CN 201721609137U CN 207763777 U CN207763777 U CN 207763777U
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- contact
- oscillating arm
- arm bracket
- fuel level
- conduction band
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Abstract
The utility model discloses a kind of fuel level sensors, including the oscillating arm bracket that is hinged on inner wall of oil tank and are arranged below oscillating arm bracket and are the resistance plate rack being fixedly connected with oil tank wall；Float swing arm and elastic contact blade component, and the hinged axis parallel or conllinear of the swinging center of float swing arm and oscillating arm bracket are fixed on oscillating arm bracket；Elastic contact blade component includes the first sleeve being vertically fixed on the bottom of oscillating arm bracket, the second casing of the cooperation that slides axially in first sleeve and with first sleeve, the end of second casing is fixed with conductive contact blade, and second casing be internally provided with spring, one end of spring and the bottom of oscillating arm bracket are fixed, and the other end of spring is fixedly connected with conductive contact blade.Above-mentioned fuel level sensor, by the way that contact is designed to elastic contact blade so that conduction band corresponding on resistor disc is kept in contact two contacts on conductive contact blade always, avoids the problem of fuel level sensor is susceptible to failure.
Description
Technical field
The utility model is related to sensor technical field more particularly to a kind of fuel level sensors.
Background technology
The oil level information in automotive oil tank can be known in time in order to facilitate user vehicle, to be mended in time to fuel tank
Oil.Fuel level sensor is generally installed in automotive oil tank.Fuel level sensor is to cause sensor housing after entering container using oil
The variation of capacitance between induction electrode, and this change transitions is detected into oil position (height) in container for curent change
Part.
Current fuel level sensor is generally using the principle similar to slide rheostat, by being floated downward on float in mailbox
It is dynamic so that the float swing arm being connect with float deflects, and drives the sliding of slide rheostat to touch by the deflection of float swing arm
Piece slides, so that effective resistance value of slide rheostat changes, it is fixed in on-load voltage, pass through electric current
Variation can show that corresponding oil level information feeds back to the oil level gauge on automobile.But the arrangement of current contact and resistor disc
Generally by the way of simple sliding cooperation, specially resistor disc is arranged in cylinder, the mode that contact is slided in the inner surface of cylinder,
Since resistor disc itself is arranged to cylinder micro-strain, and contact itself are easy tod produce with the sliding of contact and pressure effect
The phenomenon that having abrasion, therefore the fuel level sensor of above structure have been grown with the time and have been susceptible to contact and can not touch resistance
Piece and the phenomenon that lead to fuel level sensor failure.
In conclusion how to solve the problems, such as that fuel level sensor is susceptible to failure, it has also become those skilled in the art are urgently
Technical barrier to be solved.
Utility model content
The purpose of this utility model is to provide a kind of fuel level sensor, and asking for failure is susceptible to avoid fuel level sensor
Topic.
To achieve the goals above, the utility model provides a kind of fuel level sensor, including is hinged on inner wall of oil tank
Oscillating arm bracket and be arranged below the oscillating arm bracket and be the resistance plate rack being fixedly connected with the inner wall of oil tank；
Be fixed with float swing arm and elastic contact blade component on the oscillating arm bracket, and the swinging center of the float swing arm with
The hinged axis parallel of the oscillating arm bracket is conllinear；
The elastic contact blade component includes the first sleeve being vertically fixed on the bottom of the oscillating arm bracket, embedded in described
Slide axially the second casing of cooperation in first sleeve and with the first sleeve, and the end of second casing, which is fixed with, leads
Electric contact point, and second casing is internally provided with spring,
One end of the spring and the bottom of the oscillating arm bracket are fixed, and the other end and the conductive contact blade of the spring are fixed
It connects, the first contact and the second contact is provided on the conductive contact blade；
The second conduction band for being provided with the first conduction band on the resistance plate rack and being arranged in parallel with first conduction band, it is described
First contact is contacted with first conduction band, and second contact is contacted with second conduction band.
Preferably, first contact and second contact are hemispherical.
Preferably, the float swing arm is fixed on the oscillating arm bracket.
Preferably, the longitudinal cross-section of first conduction band and second conduction band is arc-shaped and described arc-shaped
The center of circle is fallen on the swinging center of the oscillating arm bracket.
Preferably, first contact and second contact are silver contact.
Content, a kind of above-mentioned fuel level sensor are introduced compared to background technology, including the swing arm being hinged on inner wall of oil tank
Holder and it is arranged below oscillating arm bracket and is the resistance plate rack being fixedly connected with inner wall of oil tank；It is fixed on oscillating arm bracket floating
Sub- swing arm and elastic contact blade component, and the hinged axis parallel or conllinear of the swinging center of float swing arm and oscillating arm bracket；Elasticity
Contact assemblies include the first sleeve being vertically fixed on the bottom of oscillating arm bracket, in the first sleeve and with first sleeve edge
Second casing of axial sliding fit, the end of the second casing be fixed with conductive contact blade, and the second casing is internally provided with bullet
Spring, one end of spring and the bottom of oscillating arm bracket are fixed, and the other end of spring is fixedly connected with conductive contact blade, is set on conductive contact blade
It is equipped with the first contact and the second contact；Second for being provided with the first conduction band on resistance plate rack and being arranged in parallel with the first conduction band is led
Band, the first contact are contacted with the first conduction band, and the second contact is contacted with the second conduction band.Above-mentioned fuel level sensor, by setting contact
Elastic contact blade is counted into, is slidably matched with respect to first sleeve using the second casing for being internally provided with spring, and conductive contact blade is set
It sets in the end of the second casing, so that two on conductive contact blade contact always protect by conduction band corresponding on resistor disc
Hold contact, and due to the flexible of spring itself so that contact can have certain pressure so that contact with it is right on resistor disc
The contact conduction for the conduction band answered is more secure.To solve the problems, such as that fuel level sensor is susceptible to failure.
Description of the drawings
Fig. 1 is the structural schematic diagram for the fuel level sensor that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram for the resistor disc that the utility model embodiment provides.
In figure 1 above,
Oscillating arm bracket 1, float swing arm 3, elastic contact blade component 4, first sleeve 5, the second casing 6, is led at resistance plate rack 2
Electric contact point 7, spring 8, the first contact 9, the second contact 10, the first conduction band 11, the second conduction band 12, resistor disc 13.
Specific implementation mode
The core of the utility model is to provide a kind of fuel level sensor, and asking for failure is susceptible to avoid fuel level sensor
Topic.
In order to make those skilled in the art more fully understand technical solution provided by the utility model, below in conjunction with attached
The utility model is described in further detail with specific embodiment for figure.
As shown in Figure 1, a kind of fuel level sensor that the utility model embodiment provides, including be hinged on inner wall of oil tank
Oscillating arm bracket 1 and it is arranged below oscillating arm bracket 1 and is the resistance plate rack 2 being fixedly connected with inner wall of oil tank；On oscillating arm bracket 1
It is fixed with float swing arm 3 and elastic contact blade component 4, and the hinged axis parallel of the swinging center of float swing arm 3 and oscillating arm bracket 1
Or it is conllinear；Elastic contact blade component 4 includes the first sleeve 5 being vertically fixed on the bottom of oscillating arm bracket 1, is embedded in first sleeve 5
The end of interior and the cooperation that slides axially with first sleeve 5 the second casing 6, the second casing 6 is fixed with conductive contact blade 7, and
Two casings 6 are internally provided with spring 8, and one end and the bottom of oscillating arm bracket 1 of spring 8 are fixed, the other end and the conduction of spring 8
Contact 7 is fixedly connected, and the first contact 9 and the second contact 10 are provided on conductive contact blade 7；It is provided with first on resistance plate rack 2
Conduction band 11 and the second conduction band 12 being arranged in parallel with the first conduction band 11, the first contact 9 are contacted with the first conduction band 11, the second contact 10
It is contacted with the second conduction band 12.
Above-mentioned a kind of fuel level sensor, by the way that contact is designed to elastic contact blade, using being internally provided with the second of spring
Casing is slidably matched with respect to first sleeve, and conductive contact blade is arranged in the end of the second casing, so that conductive touch
Always conduction band corresponding on resistor disc 13 is kept in contact two contacts of on piece, and since the flexible of spring itself to connect
Certain pressure can be had by touching so that contact and the contact conduction of corresponding conduction band on resistor disc 13 are more secure.To solve
The problem of fuel level sensor of having determined is susceptible to failure.
What needs to be explained here is that as shown in Fig. 2, those skilled in the art will readily appreciate that, resistor disc 13
Upper parallel arrangement has two conduction bands, respectively the first conduction band 11 and the second conduction band 12, passes through between the first conduction band and the second conduction band
Insulating materials separates.
In order to enable contact can be contacted well with resistor disc holding always in sliding process, the first contact 9 and second
Contact 10 is hemispherical.Of course, it should be understood that above-mentioned hemispherical is only the utility model embodiment for contact shape
The citing of shape can also select the structure, such as taper etc. that are designed to other shapes according to actual demand.
Installed in order to facilitate float swing arm it is more convenient to oscillating arm bracket, and replace swing arm float when dismounting it is more square
Just, appeal float swing arm 3 can be fixed on oscillating arm bracket 1.It is appreciated of course that above-mentioned be fixed on swing arm
Only the utility model embodiment can also be ability for the concrete example of the easily disassembled structure of swing arm float on holder
Other common detachable structures of field technique personnel, such as mode that screw is fixedly connected, or be non-removable structure etc..
In order to enable contact, the second contact 10 and second of the first contact 9 and the first conduction band 11 on conductive contact blade
The contact force of conduction band 12 remains stable, by the longitudinal cross-section of 11 and second conduction band 12 of above-mentioned first conduction band be designed to for
The arc-shaped and arc-shaped center of circle is fallen on the swinging center of oscillating arm bracket.In this way so that the first contact is put on the first conduction band
While being swung on the second conduction band, the decrement of spring remains unchanged dynamic and the second contact, so that contact force keeps permanent
Fixed, so that the resistance variations measured are more accurate, i.e. the accuracy of fuel level sensor is more preferable.Of course, it should be understood that
The longitudinal section of above-mentioned first, second conduction band can also be arranged to other shapes, such as V-shaped etc..
In addition, in order to enable the service life of contact is more permanent, 9 and second contact 10 of above-mentioned first contact can be equal
It is designed to silver contact.Of course, it should be understood that above-mentioned silver contact is only the preferred act of the utility model embodiment
Example can also be those skilled in the art common other contacts, such as copper contact etc..And above-mentioned first contact and second
The mode that welding may be used in contact is fixed on conductive contact blade, can also be to be fixed on by the way of riveting or threaded connection
On conductive contact blade, in actual application, selection setting can be carried out to fixed form according to actual conditions.
Fuel level sensor provided by the utility model is described in detail above.It should be noted that this explanation
Each embodiment in book is described in a progressive manner, the highlights of each of the examples are with other embodiment not
Same place, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements include not only those elements, but also
Including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case of more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article for including above-mentioned element
Or there is also other identical elements in equipment.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Explanation be merely used to help understand the core concept of the utility model.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model,
Modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (5)
1. a kind of fuel level sensor, which is characterized in that including the oscillating arm bracket (1) being hinged on inner wall of oil tank and be arranged described
It is the resistance plate rack (2) being fixedly connected below oscillating arm bracket (1) and with the inner wall of oil tank；
Float swing arm (3) and elastic contact blade component (4), and the pendulum of the float swing arm (3) are fixed on the oscillating arm bracket (1)
The hinged axis parallel or conllinear of the moving axis heart and the oscillating arm bracket (1)；
The elastic contact blade component (4) includes being vertically fixed on first sleeve (5) on the bottom of the oscillating arm bracket (1), embedding
Interior in the first sleeve (5) and the cooperation that slides axially with the first sleeve (5) the second casing (6), described second set
The end of pipe (6) is fixed with conductive contact blade (7), and second casing (6) is internally provided with spring (8),
One end and the bottom of the oscillating arm bracket (1) of the spring (8) are fixed, and the other end and the conduction of the spring (8) are touched
Piece (7) is fixedly connected, and the first contact (9) and the second contact (10) are provided on the conductive contact blade (7)；
Second for being provided with the first conduction band (11) on the resistance plate rack (2) and being arranged in parallel with first conduction band (11) is led
Band (12), first contact (9) contact with first conduction band (11), second contact (10) and second conduction band
(12) it contacts.
2. fuel level sensor as described in claim 1, which is characterized in that first contact (9) and second contact
(10) it is hemispherical.
3. fuel level sensor as described in claim 1, which is characterized in that the float swing arm (3) is fixed on the pendulum
On arm support (1).
4. fuel level sensor as described in claim 1, which is characterized in that first conduction band (11) and second conduction band
(12) longitudinal cross-section is arc-shaped, and the arc-shaped center of circle is fallen on the swinging center of the oscillating arm bracket (1).
5. fuel level sensor according to any one of claims 1-4, which is characterized in that first contact (9) and described
Two contacts (10) are silver contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721609137.2U CN207763777U (en) | 2017-11-27 | 2017-11-27 | A kind of fuel level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721609137.2U CN207763777U (en) | 2017-11-27 | 2017-11-27 | A kind of fuel level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207763777U true CN207763777U (en) | 2018-08-24 |
Family
ID=63189276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721609137.2U Active CN207763777U (en) | 2017-11-27 | 2017-11-27 | A kind of fuel level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207763777U (en) |
-
2017
- 2017-11-27 CN CN201721609137.2U patent/CN207763777U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 Second Floor, No. 368 Binhai Five Road, Binhai Park, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee after: Hui run Electric Co., Ltd. Address before: 325011 Second Floor, No. 368 Binhai Five Road, Binhai Park, Wenzhou Economic and Technological Development Zone, Zhejiang Province Patentee before: ZHEJIANG HUIRUN ELECTRIC CO., LTD. |