CN202631060U - Liquid level sensor and wafer thereof - Google Patents
Liquid level sensor and wafer thereof Download PDFInfo
- Publication number
- CN202631060U CN202631060U CN 201120576785 CN201120576785U CN202631060U CN 202631060 U CN202631060 U CN 202631060U CN 201120576785 CN201120576785 CN 201120576785 CN 201120576785 U CN201120576785 U CN 201120576785U CN 202631060 U CN202631060 U CN 202631060U
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- China
- Prior art keywords
- contact
- liquid level
- level sensor
- layer
- resistance board
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Abstract
The utility model relates to a liquid level sensor (30), which comprises a wafer (36), a resistance board (33) and a floater, wherein when liquid level is changed, the floater drives the wafer (36) to move on the resistance board (33), so the change of the liquid level is reflected by the change of a resistance value. The liquid level sensor is characterized in that the wafer (36) comprises contacts (37), wherein each contact (37) comprises a first layer (371) and a second layer (372); and the first layer (371) and the second layer (372) are welded with each other, welded with the wafer (36) and then electrically connected with the resistance board (33).
Description
Technical field
The utility model relates in general to vehicle, and relates more specifically to be used for the liquid level sensor and the contact thereof of level height in the measuring vehicle fuel tank.
Background technology
Existing liquid level sensor is as shown in Figure 1, and this liquid level sensor 10 comprises a housing 11 and a rotary body 12 that is installed on this housing 11.Wherein, be provided with resistance board 13, signal circuit, input interface and output interface (figure does not show) in this housing 11.This rotary body 12 is provided with central shaft 14 and connects the float spring 15 of (figure does not show), and wherein, this spring 15 is to be fixed on the central shaft 14.This liquid level sensor 10 is placed the container of receiving fluids; When liquid level change; The position of float changes, and further drive fixing moves on the resistance board 13 of the contact on the rotary body 12 16 in housing 11, to realize being converted into changes in resistance by the variation of liquid level; Export liquid level signal to corresponding electronic element by signal circuit in the housing 11 and output interface again, for example vehicular meter.
Show the A-A cutaway view Amplified image of liquid level sensor among Fig. 1 by Fig. 2, wherein this contact 16 comprises two contacts 17.This contact 17 is complete golden contact, and is fixed on the boss of contact 16 front ends through the mode of welding.
Yet the contact causes the electric conductivity of liquid level sensor not high than the major general, thereby correctly exports liquid level signal through resistance variations than difficulty, and the processing technology that the contact is welded on the boss is comparatively complicated, and intensity is also not enough.In addition, in the prior art, if use the composite contact of double-level-metal, double layer of metal presses together, the difficult control of its intensity, processing technology is also comparatively complicated, and if all use gold copper-base alloy, can cause very big cost waste again.
The utility model content
The purpose of the utility model is to provide the liquid level sensor that a kind of cost is low, intensity is good.
Liquid level sensor in the utility model among embodiment comprises a contact, a resistance board and a float, when liquid level change; This float drives this contact and on this resistance board, moves; To realize reacting liquid level change by resistance change, it is characterized in that this contact comprises the contact, this contact comprises double layer of metal; Wherein ground floor and second layer hot weld weld together with contact and are electrically connected with this resistance board together.
The advantage of the utility model is: improved contact and contact and contact two-layer between bond strength, also reduced the complicacy of technology.
The utility model is the liquid level sensor among the embodiment wherein, and the ground floor of its contact is an aldary, and this second layer is a billon.
Its advantage is, provides excellent conductive performance simultaneously, has practiced thrift cost.
Among the another embodiment of the utility model, the ground floor of this contact is by material C uNi
18Zn
20Form, and the second layer of this contact is by materials A uNi
5Composition is to form excellent electric contact with resistance board.
Its advantage is, has practiced thrift cost when excellent conductive performance is provided.
Another purpose of the utility model is the liquid level sensor that provides a kind of conductivity good.
The contact of the liquid level sensor in the utility model is three.
Its advantage is that three contacts provide good conductivity for this liquid level sensor.
Aspect the utility model another, resistance board comprises a plurality of gear lines, works as liquid level change, and float drives this contact and different gear line electrical connections.
The utility model purpose again is to provide a kind of contact of liquid level sensor.
The contact of this liquid level sensor comprises the contact, and this contact comprises two-layer, and wherein the ground floor and the second layer weld together, and welds together with contact again.
Its advantage is, has improved the joint bond strength of contact and contact, has reduced the complicacy of technology
The ground floor of contact is an aldary in the utility model, and this second layer is a billon.
Its advantage is, when excellent conductive performance is provided, has practiced thrift cost.
Contact comprises three contacts in the utility model.
Its advantage is, the excellent contact electric conductivity is provided.
Other exemplary embodiment of the utility model is obvious from the detailed description that hereinafter provides.Should be understood that,, only be used for illustration purpose and be not intended to limit the scope of the utility model though said detailed description and concrete example disclose the exemplary embodiment of the utility model.
Description of drawings
To combine following accompanying drawing to describe at least one embodiment hereinafter, wherein, identical Reference numeral is represented components identical.
Fig. 1 is the synoptic diagram of existing liquid level sensor;
Fig. 2 is the A-A cutaway view Amplified image of liquid level sensor shown in Figure 1;
Fig. 3 is the synoptic diagram of an embodiment of the utility model liquid level sensor;
Fig. 4 is the B-B cutaway view Amplified image of liquid level sensor shown in Figure 3;
Fig. 5 is a contact synoptic diagram in the liquid level sensor shown in Figure 3;
Fig. 6 is the C-C cutaway view Amplified image of contact shown in Figure 5.
Embodiment
Be merely exemplary on the following illustrative in nature and never be intended to limit the utility model, it application or use.
Fig. 3 is a liquid level sensor that embodiment is related according to the utility model, and this liquid level sensor 30 comprises a housing 31 and a rotary body 32 that is installed on this housing 31.Wherein, be provided with resistance board 33, signal circuit, input interface, output interface (figure is mark not) in this housing 31.This rotary body 32 is provided with central shaft 34 and spring 35, and wherein, this spring 35 is concentric with central shaft 34, and two ends are welded on respectively on resistance board and the contact.If this liquid level sensor 30 is placed the container of receiving fluids, when the liquid level change in the container, the position of this float also can change; Thereby driven rotary body 32 moves, and further drive fixing moves on the resistance board 33 of the contact on the rotary body 32 36 at housing 31, causes the variation of resistance value; In order to the variation of reaction liquid level, thereby realize that final output liquid level signal is to corresponding electronic element, for example; Vehicular meter (figure does not show) is so that the driver knows the state of the liquid level in the fuel tank.
Fig. 4 is the B-B cutaway view Amplified image of liquid level sensor shown in Figure 3.Figure can find out that this contact 36 is to contact with resistance board 33 through three contacts 37 thus, reduces the possibility of not conducting of liquid level sensor, to export liquid level signal more exactly, for example, so that the driver knows level value or fluid level condition more accurately.
Fig. 5 is the contact in the liquid level sensor shown in Figure 3.This contact 36 comprises three contacts 37, when float moves with liquid level, drive three contacts 37 and on resistance board 33, move, with resistance board on different gear lines 38 realize being electrically connected, thereby normally export the liquid level change of reacting by resistance variations.
Fig. 6 is the C-C cutaway view Amplified image of contact shown in Figure 5.Wherein this contact 36 is to be fixed together through the mode of welding with contact 37, and this contact 37 comprises the ground floor 371 and the second layer 372 that is welded to each other together.This ground floor 371 is aldarys, for example CuNi
18Zn
20This second layer is a billon, for example AuNi
5, to form excellent electric contact with resistance board 34.The contact structure of this bilayer welding; Not only can realize that with resistance board 33 good electrical is connected through the second layer 372 billons; Can also second layer billon 372 be connected to contact 36 through ground floor 371 aldarys, thereby avoid whole use gold copper-base alloys, practice thrift cost.In addition, the mode through welding with ground floor with the second layer and link together with contact again, increased bond strength.
The utility model has been described some preferred embodiment and modification thereof.Those skilled in the art are reading and are understanding instructions and can expect other modification and variation later.Thereby the utility model is not limited to as the disclosed specific embodiment of optimal mode that is used to implement the utility model, and the utility model will comprise all embodiment that fall in the claim scope.
Claims (10)
1. a liquid level sensor (30) comprises a contact (36), a resistance board (33) and a float, when liquid level change; This float drives this contact (36) and goes up mobile at this resistance board (33); To realize reacting liquid level change by resistance change, it is characterized in that this contact (36) comprises contact (37), this contact (37) comprise two-layer; Wherein ground floor (371) and the second layer (372) weld together, and weld together with contact (36) and are electrically connected with this resistance board (33).
2. liquid level sensor as claimed in claim 1 (30) is characterized in that this contact (37) is three.
3. liquid level sensor as claimed in claim 1 (30) it is characterized in that this ground floor (371) is an aldary, and this second layer (372) is a billon.
4. liquid level sensor as claimed in claim 3 (30) is characterized in that this ground floor (371) is by material C uNi
18Zn
20Form, and this second layer is by materials A uNi
5Composition is to form excellent electric contact with resistance board 33.
5. liquid level sensor as claimed in claim 1 (30) is characterized in that, this resistance board (33) comprises a plurality of gear lines (38), works as liquid level change, and float drives this contact (37) and is electrically connected with different gear lines (38).
6. liquid level sensor as claimed in claim 1 (30); Comprise that further one is used for holding the housing (31) of this resistance board (33), this housing has also held input interface, signal circuit and output interface in (31), in order to the difference input electrical signal; Produce liquid level signal, export liquid level signal then.
7. liquid level sensor as claimed in claim 3 (30) comprises that further one is connected the rotary body (32) on this housing (31), wherein; This contact (36) is fixed on this rotary body (32); This rotary body comprises a central shaft (34) and is fixed in the spring (35) on this central shaft that this spring (35) two ends are connected with resistance board with contact respectively, when liquid level change; This float driven rotary body (32) moves together, thereby uses to such an extent that this contact (36) is gone up mobile at resistance board (33).
8. the contact of a liquid level sensor (36) comprises contact (37), and this contact comprises two-layer, it is characterized in that, ground floor (371) welds together with the second layer (372), and then welds together with contact (36).
9. contact as claimed in claim 8 (36) is characterized in that this ground floor is an aldary, and this second layer (372) is a billon.
10. contact as claimed in claim 8 (36) is characterized in that, this contact comprises three contacts (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120576785 CN202631060U (en) | 2011-12-30 | 2011-12-30 | Liquid level sensor and wafer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120576785 CN202631060U (en) | 2011-12-30 | 2011-12-30 | Liquid level sensor and wafer thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631060U true CN202631060U (en) | 2012-12-26 |
Family
ID=47384253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120576785 Expired - Lifetime CN202631060U (en) | 2011-12-30 | 2011-12-30 | Liquid level sensor and wafer thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631060U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015087146A2 (en) | 2013-12-10 | 2015-06-18 | 大陆汽车有限公司 | Liquid level sensor |
| CN105115568A (en) * | 2015-09-23 | 2015-12-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
| CN105910678A (en) * | 2016-04-07 | 2016-08-31 | 黄山永舟仪器有限公司 | Liquid level sensing device for electronic injection fuel pump assembly |
-
2011
- 2011-12-30 CN CN 201120576785 patent/CN202631060U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015087146A2 (en) | 2013-12-10 | 2015-06-18 | 大陆汽车有限公司 | Liquid level sensor |
| CN105115568A (en) * | 2015-09-23 | 2015-12-02 | 浙江湖州新京昌电子有限公司 | Novel oil level sensor structure |
| CN105910678A (en) * | 2016-04-07 | 2016-08-31 | 黄山永舟仪器有限公司 | Liquid level sensing device for electronic injection fuel pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee after: WeiPai automotive electronics (Wuhu) Co., Ltd Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee before: Continental automotive electronics (Wuhu) Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |