KR100987337B1 - Sealed Fuel level sender - Google Patents

Abstract

The present invention relates to a fuel sender provided in a fuel tank and detecting a fuel remaining amount of a vehicle by a float whose position is changed according to the amount of fuel. More specifically, the electrical configuration is airtightly configured inside the case and The amount of fuel changes by the outside of the case, and the internal and external configuration of the case uses magnets and internal gears to secure airtightness of the fuel sender and improve the durability of the product through stable operation of the fuel sender. It relates to a built-in gear type fuel sender using.

Fuel Sender, Automobile, Instrument Panel, Fuel Tank, Resistance

Description

Built-in gear type fuel sender using magnet {Sealed Fuel level sender}

The present invention relates to a fuel sender provided in a fuel tank to detect a fuel remaining amount of a vehicle by a float whose position is changed according to the amount of fuel. More specifically, one side includes a power connection part connected to an input tube and an output tube, and A body formed by communicating with the power connection part and having a vertical two-stage projection at the center thereof, and having a fixed portion separated from the accommodation portion at a position adjacent to the accommodation portion, the center of the two-stage protrusion of the accommodation portion; Is inserted into the ceramic printed resistor substrate having a resistor terminal portion arranged in an arc shape by dividing each of a plurality of resistor terminals having different resistance values, and a bisecting contact with a divided resistor terminal of any one of the plurality of resistor terminals. Connected to the resistance terminal and the center of the contact portion is inserted into the upper side of the second projection, the contact It is attached to one side of the contact portion to be rotated along the resistance terminals arranged in an arc shape, and inserted into the upper side of the two-stage protrusion, interlocked with one gear so that the first gear and the first gear interlocked with the contact portion are rotated forward or reverse. A built-in gear part consisting of two gears having two magnets, a ceramic printed resistance board, a contact part, and a built-in gear part inherent in the receiving part, covering the body to protect the airtight, and forming a horizontal guide on one side horizontally. A plurality of magnets provided on one side of the rotating part and the rotating part which is inserted into the fixing part of the body and is inserted into the fixing part of the body to rotate the fixing part, and is in close contact with the outer side of the cover and corresponds to the magnet of two gears. It is formed on the lower side of the fixing piece and the fixing piece inherently formed with a rotating piece which is interlocked with the rotating part and provided on the outside of the rotating piece Float arm holder including an interference fit that is configured to be guided to the horizontal guide, one side is fixed to the fixing hole and the one side is fixed to the interference fit, the other side floating position according to the fuel level in the fuel tank The present invention relates to a built-in gear type fuel sender using a magnet, comprising a float arm connected to a floating float and rotating about a rotation unit according to a change in position of the float.

In general, a fuel tank installed in a vehicle is an essential device for driving a vehicle regardless of an LPG vehicle, a gasoline vehicle, or a diesel vehicle. It is a device to supply to the system.

The fuel tank has a proper volume so that the vehicle can be driven over a certain distance after refueling, and is generally formed of a thin steel plate to withstand impacts. In addition, the fuel tank is equipped with a gas inlet for filling fuel, a drain plug, and a fuel sender for indicating the amount of fuel.The fuel tank prevents fuel from squeaking while driving and increases the strength of the tank. Several barriers have been welded.

Such a fuel tank is provided with a fuel sender for checking the fuel amount either integrally or separately from the fuel tank. The fuel sender has a float that floats according to the amount of fuel and a float arm that rotates around the hinge according to the height movement of the float. And a resistance pin formed at an upper end of the arm, and a ceramic printed resistor substrate for converting the amount of fuel according to the east and west of the float into a resistance value and transmitting the resistance to a fuel gauge substrate provided in the driver's seat.

That is, the height of the float changes as the amount of fuel in the fuel tank changes, and a resistance pin connected to the end of the float arm rotated according to the height of the float contacts the surface of the ceramic printed resistive substrate. Here, since the ceramic printed resistive substrate has different resistances set for each position, the amount of fuel in the fuel tank can be known depending on which position the resistance pin is in contact with. This changed resistance value is transmitted to the fuel gauge provided in the driver's seat so that the guideline indicates the current fuel level.

On the other hand, the fuel sender is a component that is deposited and used in the fuel, which may cause oxidation and resistance ohms caused by the fuel. Therefore, in order to prevent such a problem, sealing type fuel senders have been developed. There was a safety issue.

The present invention has been made to solve the above problems, the object of the present invention is to solve the field frame, the most frequently generated in the fuel sender and to solve the complexity and instability of the existing sealing type fuel sender, while having excellent reproducibility To provide a built-in gear type fuel sender using a magnet according to the present invention.

An object of the present invention as described above is a fuel sender provided in the fuel tank to detect the fuel remaining amount of the vehicle by a float whose position is changed according to the fuel amount, one side is provided with a power connection connected to the input tube and the output tube A body formed by communicating with the power connection part and having a vertical two-stage projection at the center thereof, and having a fixed portion separated from the accommodation portion at a position adjacent to the accommodation portion, the center of the two-stage protrusion of the accommodation portion; Is inserted into the ceramic printed resistor substrate having a resistor terminal portion arranged in an arc shape by dividing each of a plurality of resistor terminals having different resistance values, and a bisecting contact with a divided resistor terminal of any one of the plurality of resistor terminals. Connected to the resistance terminal and the center of the contact portion is inserted into the upper side of the two protruding portion, the contact portion Is attached to one side of the contact portion so as to rotate along the resistance terminals arranged in an arc shape, and is inserted into the upper side of the two-stage protrusion, interlocked with one gear such that the first gear and the first gear interlock with the contact portion, and the first gear is rotated forward or reverse. A built-in gear part consisting of two gears with two magnets embedded therein, a ceramic printed resistance board, a contact part, and a built-in gear part embedded in the receiving part to cover the body to protect the airtight, and to form a horizontal guide on one side horizontally. A cover, a rotating part inserted into a fixing part of the body to form an insertion hole rotating around the fixing part, and a plurality of magnets provided on one side of the rotating part to be in close contact with the outside of the cover and corresponding to a magnet of two gears. It is formed on the lower side of the fixing piece and the fixing piece inherently formed with a rotating piece which is interlocked with the rotating part and provided on the outside of the rotating piece. Is a float arm holder including an interference fitting portion, guided to the horizontal guide, one side is fixed to the fixing hole and one side is fixed to the interference fitting portion, the other side is floating position according to the fuel level in the fuel tank It is achieved by a built-in gear type fuel sender using a magnet, characterized in that it comprises a float arm that is connected to the floating float and rotates around the rotating part in accordance with the position change of the float.

According to the internal gear type fuel sender using a magnet according to the present invention, the electrical configuration (ceramic printed resistive substrate, the contact portion, etc.) is airtightly configured by the case and the cover, but the fuel level measurement using the float and the float arm is configured outside the case. Float arm holder with magnet that is interlocked with float arm and internal structure of magnet and interlocked with the arm to interlock electrical configuration to ensure the airtightness of electrical configuration due to fuel Is blocked in principle, thereby improving the reliability of the fuel sender.

In addition, since the internal gear is completely sealed from the fuel, reliability can be maintained even during long-term operation.

In addition, by using the ratio of the gears of the internal gear portion, it is possible to freely adjust the arrangement length of the resistance terminals arranged in an arc shape.

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention will be described in detail.

The present invention relates to a fuel sender provided in a fuel tank so as to sense a fuel remaining amount of a vehicle by a float whose position changes according to the fuel amount.

The present invention is largely the body 10, the ceramic printed resistance substrate 30, the cover 20, the contact portion 40, the built-in gear portion 50, the float arm holder 60, float arm It consists of 70.

As shown in FIG. 2, the body 10 includes a power connection part 12 to which an input pipe 12a and an output pipe 12b are connected, an accommodation part 11 communicating with the power connection part 12, and the accommodation part ( 11) and a fixed portion ("U" shaped groove 13, insert 14) is isolated from.

The power connection part 12 communicates with the receiving part 11, but when the covering part 11 is covered with the cover 20, the power connection part 12 is sealed together with the receiving part 11, and the receiving part 11 has one side open. It communicates with the power connection 12 and is isolated from the fixed part. In addition, the accommodating part 11 is spaced to accommodate the ceramic printed resistive substrate 30 having the resistance terminal part 31 in which a plurality of divided resistance terminals having different resistance values are arranged in an arc shape. The two-stage protrusion 15 is formed at the center so that the resistor plate 30 is fixed. Here, the two-stage projection part 15 has a diameter different from each other in the upper side and the lower side, but the portion 15a formed on the lower side is larger in diameter than the portion 15b formed on the upper side.

The ceramic printed resistive substrate 30 has a configuration in which the resistor terminal portions 31 are arranged in an arc shape having a plurality of divided resistor terminals. That is, the divided resistance terminals are divided into two as shown in FIG. 5 so that one resistance terminal 31a is connected to the positive electrode, and the other resistance terminal 31b is connected to the negative electrode. To this end, two lead wires (not shown) are connected to one side of the ceramic printed resistive substrate 30, and the lead wires are protected by the input pipe 12a and the output pipe 12b of the power connection part 12 and connected to an external power source. do. Meanwhile, in the present invention, the power connector 12 may be connected to the ceramic printed resistive substrate 30 in the form of a connector so as to be connected to the resistor terminal 31. Such a configuration is conventional.

Meanwhile, referring to FIG. 2, the ceramic printed resistive substrate 30 is closer to the receiving portion 11 than the contact portion 40 and the internal gear portion 50, so that the ceramic printed resistive substrate 30 is lower than the two-stage protrusion 15. You can see that it is inserted in.

The contact portion 40 contacts the divided resistance terminal of any one of the plurality of resistance terminals and connects the divided resistance terminal, and a center thereof is inserted into the upper side of the two protruding portion to rotate about the two protruding portion.

As shown in FIGS. 2 to 4, the contact portion 40 has a first gap between the first U-shaped plate 42 and the inner circumferential surface of the first U-shaped plate 42. The second "U" shaped plate 43 provided on the inner circumferential surface side of the "shaped plate 42" and the contact points 44 provided on one side of the first and second "U" shaped plates 42 and 43, respectively, 45) and the first and second " U " shaped plates 42 and 43, which are attached to the upper side of the two-stage projection 15. Here, the curved portions of the first and second “U” shaped plates 42 and 43 may protrude outward from one side of the plate 41 and be spaced apart from one surface of the plate 41. This is to prevent the points 44 and 45 from being separated from the resistance terminals of the resistance terminal portion 31. Here, the contact points 44 and 45 are provided as conductors on the bends of the first " U " plate 42 and the second " U " plate 43, respectively, to contact the resistor terminals and to be conductors. ) Through the resistance terminal divided into two through the power did not go through.

The internal gear part 50 is attached to one side of the contact part 40 so that the contact part 40 rotates along the resistance terminal part 31 arranged in an arc shape, and is inserted into the upper side of the two-stage protrusion part 15 so as to contact the contact part 40. 1 gear 51 that is interlocked with the first gear 51 and the second gear 52 in which a plurality of magnets (81, 82) are embedded therein so as to mesh with the first gear (51) such that the first gear (51) rotates forward or reverse. It is composed.

The first gear 51 is composed of a circular plate 51a attached to the plate 41 and a gear portion 51b provided at one side of the circular plate, and the second gear 52 has a gear portion 51b at the lower side. ) Is formed and a plurality of magnets 81 and 82 are embedded therein.

As shown in FIGS. 1 to 3, the lid 20 includes a ceramic printed resistive substrate 30, a contact portion 40, and a built-in gear portion 50, which are embedded in the accommodating portion 11. Covering the body 10 so as to be protected from airtight and is configured to form a horizontal guide 22 to guide horizontally on one side.

The float arm holder 60 is inserted into a fixed part of the body 10 and includes a rotating part 61 having an insertion hole 61a rotating around the fixed part, and provided on one side of the rotating part 61. Rotating piece 62 in close contact with the outer side of the 20 and interlocked with the rotating part 61 by embedding a plurality of magnets 83 and 84 corresponding to the magnets 81 and 82 of the two gears 52 and the rotation. It consists of the fixing piece 63 in which the fixing hole 63a provided in the outer side of the piece 62, and the interference fitting part 64 formed in the lower side of the said fixing piece 63 is comprised.

The float arm 70 is guided to the horizontal guide 22 as shown in FIGS. 1 to 3, one side of which is fixed to the fixing hole 63a, and one side of the float arm 70 is fixed to the interference fitting portion 64. The other side is connected to a float whose floating position changes in accordance with the fuel level in the fuel tank, and is configured to rotate about the rotating part 61 in accordance with the position change of the float.

Hereinafter, an operation relationship of the internal gear type fuel sender using the magnet configured as described above will be described.

First, the power supply is connected to the resistance terminal 31 of the ceramic printed resistive substrate 30 to complete the preparation for implementation.

When the fuel amount of the fuel tank is full, the float will be positioned at the top of the inside of the fuel tank, and the float arm 70 having the float on one side may be rotated in FIG. 1 according to the position of the float. Rotation is based on the guide is guided to the horizontal guide 22 is located on the left side of the cover (20). Therefore, the float arm holder 60 which fixes the float arm 70 is rotated in conjunction with the float arm 70, and the two gears 52 of the built-in gear unit 50 are also magnets of the float arm holder 60. 83,84). The first gear 51 of the built-in gear unit 50 rotates according to the second gear 52 of the built-in gear unit 50, and the plate 41 attached to the first gear 51 also rotates. The 1,2 " U " shaped plates 42,43 are rotated so that the contact points 44,45 are the smallest, or the largest, of the two or more divided resistance terminals of the ceramic printed resistor substrate 30. The resistance value located in the resistance terminal and measured through this is transmitted to a controller (not shown), and the fuel gauge substrate is driven by the controller so that the fuel gauge substrate indicates a full amount of fuel.

On the other hand, when the vehicle is driven and the fuel amount is exhausted, the float is gradually lowered at the position of the top of the inside of the fuel tank, and the float arm 70, the float arm holder 60, and the built-in gear unit 50 interlocked therewith. The contact points 44 and 45 of the contact portion 40 are positioned at the resistance terminals having the largest or smallest resistance value among the divided resistance terminals of the ceramic printed resistance substrate 30, and the measured resistance values are The fuel gauge substrate is transferred to the controller, and the fuel gauge substrate is driven by the controller so that the fuel gauge substrate indicates an empty state of the fuel amount.

In this case, when the fuel amount is full, when the resistance value of the divided resistance terminal where the contact points 44 and 45 are located is the largest, the empty value will be the smallest resistance value of the divided resistance terminal. On the other hand, this can also be interpreted inversely, such a process is a conventional description of the brief description.

Although the present invention has been described in connection with the preferred embodiment, those skilled in the art will be able to easily make various changes and modifications without departing from the essential characteristics of the present invention. Therefore, it should be understood that the disclosed embodiments are to be considered in an illustrative rather than a restrictive sense, and that the true scope of the invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof, .

1 is a perspective view showing an example of a fuel sender according to the present invention;

2 is an exploded perspective view of FIG. 1;

3 is a perspective view of another angle of FIG.

Figure 4 is a side view showing only the ceramic printed resistive substrate and the contact portion of the configuration of the fuel sender according to the present invention,

5 is a view showing in detail a ceramic print resistor substrate of the fuel sender according to the present invention.

Description of the Related Art

10: body 20: cover

30: ceramic printed resistor substrate 40: contact portion

50: internal gear 60: float arm fixing

70: float arm 11: receiving portion

12: power connection 12a: input tube

12b: Output Tube 13: "U" Groove

14: inserting portion 15: two-stage protrusion

22: horizontal guide 31: resistance terminal

31a, 31b: Resistance terminal 41: Plate

42: first "U" shaped plate 43: second "U" shaped plate

44,45: contact point 51: 1 gear

52: 2 gear 61: rotating part

61a: insertion hole 62: rotating piece

63: fixing piece 63a: fixing hole

64: interference fitting 81,82,83,84: magnet

Claims (3)

A fuel sender provided in a fuel tank and detecting a fuel remaining amount of a vehicle by a float whose position is changed according to fuel amount, One side has a power connection 12 connected to the input tube 12a and the output tube 12b, the interior of the receiving portion 11 is in communication with the power connection 12 and having a vertical two-stage projection 15 in the center A body (10) formed at a position adjacent to the receiving part (11) and forming a fixing part isolated from the receiving part (11); A ceramic printed resistive substrate 30 having a resistor terminal 31 arranged in an arc shape by dividing a plurality of resistor terminals each having a different resistance value and having a center inserted at a lower side of the second protrusion of the accommodation part 11. and; A contact portion 40 contacting a two-divided resistance terminal of the plurality of resistance terminals and connecting a two-divided resistance terminal with a center inserted into an upper side of the two-stage protrusion; One gear 51 attached to one side of the contact portion 40 and inserted into the upper side of the two-stage protrusion 15 so as to rotate along the resistance terminals 31 arranged in an arc shape and interlocked with the contact portion 40. ) And a built-in gear unit 50 which is composed of two gears 52 meshed with the first gear 51 so that the first gear 51 is rotated forward or reversely, and a plurality of magnets 81 and 82 are embedded therein. )Wow; The ceramic printed resistive substrate 30, the contact portion 40, and the internal gear part 50, which are inherent in the accommodating part 11, cover the body 10 to protect the airtight and horizontally guide one side horizontally. A cover 20 having a guide 22 formed thereon; A rotating part 61 inserted into the fixing part of the body 10 to form an insertion hole 61a rotating around the fixing part, and provided on one side of the rotating part 61 to be in close contact with the outside of the cover 20. And a plurality of magnets 83 and 84 corresponding to the magnets 81 and 82 of the two gears 52, the rotating piece 62 interlocking with the rotating part 61, and an outer side of the rotating piece 62. A float arm holder (60) comprising a fixing piece (63) having a fixing hole (63a) provided thereon and an interference fitting portion (64) formed below the fixing piece (63); Guided to the horizontal guide 22, one side is fixed to the fixing hole (63a), the vicinity of the one side is fixed to the interference fitting portion 64, the other side is a float that changes the floating position in accordance with the fuel level in the fuel tank A float arm 70 which is connected to the rotating arm about the rotating part 61 according to a change in the position of the float; Built-in gear type fuel sender using a magnet, characterized in that comprising a. The method of claim 1, The fixing portion is a "U" shaped groove 13 to receive the outer circumferential surface of the rotating portion 61, and the "U" shaped groove so that the insertion hole (61a) of the rotating portion 61 of the float arm holder 60 is inserted ( Built-in gear type fuel sender using a magnet, characterized in that the insertion portion 14 is provided on one side of the 13). The method of claim 1, The contact portion is provided on the inner circumferential surface side of the first "U" shaped plate 42 with a predetermined gap from the inner circumferential surface of the first "U" shaped plate 42. 2 " U " plate 43, contact points 44 and 45 provided on one side of the first and second " U " shaped plates 42 and 43, and the first and second " U " Attached to the plate (42,43) consists of a plate 41 is inserted into the upper side of the two-protrusion (15), The curved portions of the first and second "U" shaped plates 42 and 43 are projected outward from one side of the plate 41 and spaced apart from one surface of the plate 41. Built-in gear type fuel sender.

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