Oil level sensor of oil tank

Abstract

The utility model discloses an oil level sensor of an oil tank, which comprises a fixing frame and resistor disc supports, the resistor disc supports are buckled with the fixing frame, the oil level sensor further comprises a floater, a floater rod, a sliding sheet and resistor discs, the floater is connected to one end of the floater rod, a floater support is arranged between the resistor disc supports, a rotatable rotating seat is arranged on the floater support, and the rotating seat is connected with the floater rod. One end of the floater rod is fixed on the rotating seat, the sliding sheet is fixed on the rotating seat, the other end of the floater rod is connected on the rotating seat, the resistor disc and the sliding sheet are respectively and conductively connected on the circuit board, the torsion spring is conductively connected with the circuit board, the middle of the torsion spring is sleeved on a rotating shaft of the rotating seat, and one supporting leg of the torsion spring is soldered on the fixing frame. The other supporting foot of the torsion spring is soldered on the sliding piece, the protruding point on the sliding piece is in contact with the resistor disc, and the end of one supporting foot of the torsion spring extends to the protruding point to be in contact with the resistor disc. The torsion spring can replace a slip sheet to be in conductive contact with the resistance sheet, the breakpoint generation risk is reduced, the slip sheet and the resistance sheet are in conductive contact more reliably, and the reliability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to a component on an automobile oil tank, in particular to an oil level sensor of the oil tank. Background Art

[0002] The oil level sensor of the fuel tank is used to detect the liquid level of the fuel in the fuel tank and feed it back to the driving position in the form of a signal for the driver to know in time. The structure of the traditional oil level sensor is mainly that the slider slides along the resistor and outputs the signal through the resistance change. The slider is connected to the float transmission. Since the slider is made of iron material, some of them may have defects. In addition, since there is no force during the rotation of the slider, it will shake randomly with the floating of the float, causing the rotating position to become loose due to wear, affecting the accuracy of the liquid level detection, and even causing breakpoints to cause the liquid level not to be displayed. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide an oil level sensor for an oil tank in which the sliding piece and the resistor piece have reliable conductive contact, thereby improving the reliability of the structure.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil level sensor for an oil tank, comprising a fixing frame and a resistor bracket, the resistor bracket being buckled with the fixing frame, and also comprising a float, a float rod, a slide and a resistor, the resistor being mounted on the resistor bracket, the float being connected to one end of the float rod, a float bracket being arranged between the resistor brackets, a rotatable rotating seat being arranged on the float bracket, the slide being fixed on the rotating seat, the other end of the float rod being connected to the rotating seat, a circuit board being arranged on the resistor bracket, the resistor and the slide being respectively conductively connected to the circuit board, and also comprising a torsion spring conductively connected to the circuit board, the middle part of the torsion spring being sleeved and mounted on the rotating shaft of the rotating seat, one leg of the torsion spring being soldered to the fixing frame, the other leg of the torsion spring being soldered to the slide, a convex point being arranged at the end of the slide, the convex point being in contact with the resistor, and one leg end of the torsion spring extending to the convex point position in contact with the resistor.

[0005] The fixing frame is provided with snap grooves which are distributed in a matrix and are in the shape of a "mouth", and the resistor bracket is provided with snap blocks which correspond to the snap grooves one by one, and the ends of the snap blocks are bent in the shape of a "7", and a top plate is also provided on the resistor bracket. After the snap blocks pass through the snap grooves and are hooked on the snap grooves, the top plate is supported on the fixing frame.

[0006] The beneficial effect of the utility model is that the rotation of the rotating seat can apply a small torque through the torsion spring, so that the sliding piece on the rotating seat is not easy to shake when the rotating seat rotates, and the torsion spring and the sliding piece are soldered together, and the bracket of the torsion spring and the sliding piece are in contact with the resistor sheet together, so that even if the sliding piece is not in contact with the resistor sheet, the torsion spring can replace the sliding piece to make conductive contact with the resistor sheet, thereby reducing the risk of breakpoint generation, making the conductive contact between the sliding piece and the resistor sheet more reliable, and improving the reliability of the structure.

[0007] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of a specific implementation method of the utility model;

[0009] Figure 2 It is a side view of a specific embodiment of the utility model;

[0010] Figure 3 for Figure 2 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0011] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0012] like Figure 1 , Figure 2 As shown, this embodiment discloses an oil level sensor for an oil tank, comprising a fixing frame 1 and a resistor bracket 2, the resistor bracket 2 being buckled with the fixing frame 1, and further comprising a float 3, a float rod 4, a slide 5 and a resistor 6, the resistor 6 being mounted on the resistor bracket 2, the float 3 being connected to one end of the float rod 4, a float bracket 7 being arranged between the resistor brackets 2, a rotatable rotating seat 8 being arranged on the float bracket 7, the slide 5 being fixed on the rotating seat 8, the other end of the float rod 4 being connected to the rotating seat 8, the resistor bracket 2 being further provided with a circuit board, the resistor The sheet 6 and the slider 5 are respectively conductively connected to the circuit board, and also include a torsion spring 9 conductively connected to the circuit board. The middle part of the torsion spring 9 is sleeved and installed on the rotating shaft of the rotating seat 8. One leg of the torsion spring 9 is soldered to the fixed frame 1, and the other leg of the torsion spring 9 is soldered to the slider 5. A convex point is set at the end of the slider 5, and the convex point is in contact with the resistor 6. The resistor is arc-shaped. The slider slides on the resistor through the convex point to generate corresponding resistance. Different resistances can display different oil level signals. One leg end of the torsion spring 9 extends to the convex point position and contacts the resistor 6.

[0013] like Figure 2 , Figure 3As shown in the figure, the fixing bracket 1 is provided with buckle slots 10 distributed in a matrix and in a "square" shape. The resistor sheet bracket 2 is provided with buckle blocks 20 corresponding to the buckle slots 10 one by one. The end of the buckle block 20 is bent in a "7" shape. A top plate 30 is also provided on the resistor sheet bracket 2. After the buckle block 20 passes through the buckle slot 10 and hooks on the buckle slot 10, the top plate 30 abuts against the fixing bracket 1. This structure can make the connection between the fixing bracket 1 and the resistor sheet bracket 2 more convenient and reliable.

[0014] With the above technical solution, a small torque can be applied to the rotation of the rotating seat 8 through the torsion spring 9, so that the sliding piece 5 on the rotating seat 8 is not easy to shake when rotating with the rotating seat 8. At the same time, the torsion spring 9 and the sliding piece 5 are soldered together, and the bracket of the torsion spring 9 and the sliding piece 5 are in contact with the resistor sheet 6 together. In this way, even when the sliding piece 5 is not in contact with the resistor sheet 6, the torsion spring 9 can replace the sliding piece 5 to conduct electricity and contact with the resistor sheet 6, reducing the risk of breakpoints, making the electrical contact between the sliding piece 5 and the resistor sheet 6 more reliable, and improving the reliability of the structure.

[0015] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0016] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oil level sensor for an oil tank, comprising a fixing frame and a resistor bracket, the resistor bracket being buckled with the fixing frame, and further comprising a float, a float rod, a slide and a resistor, the resistor being mounted on the resistor bracket, the float being connected to one end of the float rod, a float bracket being arranged between the resistor brackets, a rotatable rotating seat being arranged on the float bracket, the slide being fixed on the rotating seat, the other end of the float rod being connected to the rotating seat, a circuit board being arranged on the resistor bracket, the resistor and the slide being respectively conductively connected to the circuit board, characterized in that: It also includes a torsion spring that is conductively connected to the circuit board, the middle part of the torsion spring is sleeved and installed on the rotating shaft of the rotating seat, one leg of the torsion spring is soldered to the fixed frame, the other leg of the torsion spring is soldered to the sliding piece, a convex point is set at the end of the sliding piece, the convex point contacts the resistor, and the end of one leg of the torsion spring extends to the convex point position to contact the resistor.

2. The oil level sensor for the oil tank according to claim 1, characterized in that: The fixing frame is provided with a matrix-distributed "mouth"-shaped buckle grooves, the resistor bracket is provided with buckle blocks corresponding to the buckle grooves one by one, the ends of the buckle blocks are bent into a "7" shape, and a top plate is also provided on the resistor bracket. After the buckle blocks pass through the buckle grooves and are hooked on the buckle grooves, the top plate is supported on the fixing frame.

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