CN206132174U - Automobile -used expansion tank level sensor - Google Patents

Automobile -used expansion tank level sensor Download PDF

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Publication number
CN206132174U
CN206132174U CN201621169731.XU CN201621169731U CN206132174U CN 206132174 U CN206132174 U CN 206132174U CN 201621169731 U CN201621169731 U CN 201621169731U CN 206132174 U CN206132174 U CN 206132174U
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CN
China
Prior art keywords
level sensor
tank
expansion tank
liquid level
pedestal
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.)
Active
Application number
CN201621169731.XU
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Chinese (zh)
Inventor
张志华
宋恋
赵雨
郑光聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hengbo Holdings Co Ltd
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Hengbo Holdings Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hengbo Holdings Co Ltd filed Critical Hengbo Holdings Co Ltd
Priority to CN201621169731.XU priority Critical patent/CN206132174U/en
Application granted granted Critical
Publication of CN206132174U publication Critical patent/CN206132174U/en
Active legal-status Critical Current
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Abstract

The utility model provides an automobile -used expansion tank level sensor, including water tank casing, tank lid and level sensor, be provided with connecting terminal draw -in groove, base mounting groove and conducting rod seal groove on the water tank casing, level sensor includes the base of two conducting rods and fixed conducting rod, the base is installed in the base mounting groove, the conducting rod passes in base and the laggard income water tank casing of conducting rod seal groove, conducting rod bottom and expansion tank lowest water level line parallel and level. The utility model discloses simple structure goes up increase voltage response level sensor on traditional expansion tank's basis, through novel structure, satisfy produce property can the time reduce material input, reduce product weight, simplify forming technology, use safe and reliable, product reliability is good, greatly reduced expansion tank 0.

Description

Vehicle expansion tank liquid level sensor
Technical field
The present invention relates to a kind of tank sensor, more particularly, to a kind of vehicle expansion tank liquid level sensor.
Background technology
With the development of auto industry, automobile human oriented design increasingly receives publicity, the function master of car expansion tank If the steam bubble for eliminating cooling system protects engine block and water pump not by air corrosion, in order to ensure systemic-function, in water Highest liquid level and minimum liquid level mark are set with case, water tank is arranged in cabin, is not easy to find during user's use Water level is too low, reports to the police just, it can be seen that the use to electromotor brings great risk typically by water temperature over-high.
Tongue tube ball float inductive transducer device is increased inside expansion tank more than solution at present.Single this solution Scheme it is actually used it is central there are problems that, it includes:1st, tongue tube needs to be installed in the position-limiting tube of a sealing, its Installation site required precision is high;2nd, ball float middle magnetic ring position and floating ball required precision are high;3rd, position-limiting tube and ball float are required for Sealing is welded and ensures, life-time service has failure risk;4th, sensor constituent parts is more and complex process, product price It is high.
The content of the invention
For the problems referred to above, the invention provides a kind of vehicle expansion tank liquid level sensor, its simple structure, in tradition Increase voltage induced liquid level sensor on the basis of expansion tank, safe and reliable, product reliability is good, greatly reduces product Product cost.
The invention provides a kind of vehicle expansion tank liquid level sensor, including tank shell, tank lid and level sensing Device, is provided with connection terminal draw-in groove, pedestal mounting groove and contact rod seal groove, the liquid level sensor bag on the tank shell The pedestal of two contact rods and fixed contact rod is included, the pedestal is arranged in pedestal mounting groove, and the contact rod passes through pedestal Enter in tank shell with after contact rod seal groove, the contact rod bottom is concordant with expansion tank lowest water level line.
Preferably, the contact rod, pedestal and tank shell three junction are provided with O-ring seal.
Preferably, the tank shell includes upper shell and lower house, and the material of the tank shell is transparent or half Transparent plastic.
Preferably, the upper shell and lower house are welded by hot plate Welding.
Present configuration is simple, voltage induced liquid level sensor is increased on the basis of conventional expanded water tank, by new Structure, reduces material input while meeting properties of product, reduce product weight, simplifies moulding process, safe and reliable, produces Product good reliability, greatly reduces product cost.
Description of the drawings
Fig. 1 is top view of the present invention;
Fig. 2 is along the sectional view in A-A directions in Fig. 1;
Fig. 3 is the partial enlarged drawing in Fig. 2 at B;
Wherein:1-tank shell;11-upper shell;12-lower house;2-tank lid;3-liquid level sensor;4-end Subcard groove;5-pedestal mounting groove;6-contact rod seal groove;7-contact rod;8-pedestal;9-O-ring seal.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, the present invention relates to a kind of vehicle expansion tank liquid level sensor, including tank shell 1, water Case lid 2 and liquid level sensor 3, are provided with the sealing of connection terminal draw-in groove 4, pedestal mounting groove 5 and contact rod on the tank shell 1 Groove 6, the liquid level sensor 3 includes the pedestal 8 of two contact rods 7 and fixed contact rod 7, and the pedestal 8 is pacified installed in pedestal In tankage 5, the contact rod 7 is entered in tank shell 1 through after pedestal 8 and contact rod seal groove 6, the bottom of the contact rod 7 It is concordant with expansion tank lowest water level line.Its operation principle is using the principle of liquid conduction, coolant and two contact rods Be considered as equivalent circuit, when liquid level is higher than minimum level, resistance is less between contact rod, SP voltage 5V, MC inputs for 4~ 4.9V;When liquid level is less than minimum level, contact rod resistance is increased, and SP voltages are 5V, and MC inputs are 0.2~0.8V, work as liquid level In 1 boundary's point when, SP voltages be 5V, MC input be 1.7~2.4V, arrange warning model SP voltage 5V, MC input be less than 2V。
Preferably, the contact rod 7, pedestal 8 and the three junction of tank shell 1 are provided with O-ring seal 9, it is ensured that liquid Level sensor installs sealing.
Preferably, the tank shell 1 includes upper shell 11 and lower house 12, the material of tank shell 1 for transparent or Translucent plastic.
Preferably, the upper shell 11 and lower house 12 are welded by hot plate Welding.
The present invention meets properties of product and reduces material input simultaneously by new structure and novel process, reduces product weight Amount, simplifies moulding process.Comparing tongue tube liquid level sensor expansion tank cost reduces by 15%, and production efficiency increases by 30%, weight Mitigate 10%.
The above, is only the better embodiment of the present invention, not makees any pro forma restriction to invention, it is every according to According to the know-why of the present invention to any simple modification made for any of the above embodiments, equivalent variations or modification, the present invention is still fallen within In the range of technical scheme.

Claims (4)

1. a kind of vehicle expansion tank liquid level sensor, including tank shell(1), tank lid(2)And liquid level sensor(3), its It is characterised by:The tank shell(1)On be provided with connection terminal draw-in groove(4), pedestal mounting groove(5)With contact rod seal groove (6), the liquid level sensor(3)Including two contact rods(7)With fixed contact rod(7)Pedestal(8), the pedestal(8)Peace It is mounted in pedestal mounting groove(5)It is interior, the contact rod(7)Through pedestal(8)With contact rod seal groove(6)Tank shell is entered afterwards (1)It is interior, the contact rod(7)Bottom is concordant with expansion tank lowest water level line.
2. vehicle expansion tank liquid level sensor according to claim 1, it is characterised in that:The contact rod(7), pedestal (8)And tank shell(1)Three junction is provided with O-ring seal(9).
3. vehicle expansion tank liquid level sensor according to claim 1, it is characterised in that:The tank shell(1)Bag Include upper shell(11)And lower house(12), tank shell(1)Material be transparent or translucent plastic.
4. vehicle expansion tank liquid level sensor according to claim 3, it is characterised in that:The upper shell(11)With under Housing(12)It is welded by hot plate Welding.
CN201621169731.XU 2016-10-26 2016-10-26 Automobile -used expansion tank level sensor Active CN206132174U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621169731.XU CN206132174U (en) 2016-10-26 2016-10-26 Automobile -used expansion tank level sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621169731.XU CN206132174U (en) 2016-10-26 2016-10-26 Automobile -used expansion tank level sensor

Publications (1)

Publication Number Publication Date
CN206132174U true CN206132174U (en) 2017-04-26

Family

ID=58576734

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621169731.XU Active CN206132174U (en) 2016-10-26 2016-10-26 Automobile -used expansion tank level sensor

Country Status (1)

Country Link
CN (1) CN206132174U (en)

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