KR101661885B1

KR101661885B1 - A brake level sensor for the oil reserver

Info

Publication number: KR101661885B1
Application number: KR1020150037588A
Authority: KR
Inventors: 김태환
Original assignee: 주식회사 현대포리텍
Priority date: 2015-03-18
Filing date: 2015-03-18
Publication date: 2016-10-04
Also published as: KR20160112254A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake level sensor for an oil reservoir, and its main object is to simplify the manufacture of a brake level sensor, thereby improving productivity and reducing manufacturing costs as much as possible.
In order to achieve the above object,
A sensor unit including first and second terminals each having one end coupled to the end and a reed switch having both ends connected to the respective ends of the first and second terminals;
And a case having one end opened to receive the first and second terminals of the sensor unit and the reed switch therein,
Both ends of the reed switch contacting each end of the first and second terminals are welded by spot welding;
The level sensor comprises:
Wherein the first and second terminals and the first and second terminals are connected to each other so that the reed switch does not flow inside the case and the first end and the second end of the reed switch cover the sensor portion, A flow preventing cover formed with openings for facilitating spot welding on both sides of the two terminals and a cutout portion formed in the longitudinal direction of the reed switch so that the reed switch can be easily seated;
The cut-
At least one holder is symmetrically provided for seating the reed switch in the longitudinal direction of the guide portion;
The brake level sensor comprises:
And a shock absorbing damping sponge provided between the case and the anti-flow cover.
Thus, according to the present invention, there is an advantage that the manufacture of the brake level sensor is simplified, the productivity is improved, and the manufacturing cost is reduced as much as possible.

Description

Technical Field [0001] The present invention relates to a brake lever sensor for an oil reservoir,

The present invention relates to a level sensor, and more particularly, to a brake level sensor for an oil reservoir that improves productivity and reduces manufacturing cost by welding both ends of a reed switch to first and second terminals.

Generally, the vehicle is provided with an oil reservoir for storing the oil to supply the vehicle to cool the vehicle or operate the cylinder.

A representative example of such an oil reservoir is a brake oil reservoir that stores brake oil for operating a cylinder of a brake.

The brake oil reservoir is connected to the master cylinder to supply the brake oil to the brake at a high pressure. When the brake is operated, a booster is operated to supply the brake oil to the master cylinder. So that the brake oil can be recovered to the oil reservoir.

On the other hand, if brake oil is leaked or exhausted, the brake will not operate and it can cause a serious accident. Therefore, it is necessary to check the amount of brake oil in the brake oil reservoir, Respectively.

1, a level sensor 1 is roughly divided into a sensor unit 10 and a case 20. The level sensor 1 is a sensor unit.

The sensor unit 10 is provided with first and second terminals 13 and 15 each having one end connected to the tail end 11 and the other end.

The ends of the first terminals 13 are formed in a right angle direction, and are disposed side by side with a predetermined distance from the second terminals 15.

Both ends of the reed switch 17 are brought into contact with the respective ends of the first and second terminals 13 and 15, respectively.

In this state, each end of the reed switch 17 is brought into contact with and fixed to the first and second terminals 13 and 15 described above.

The first and second terminals 13 and 15 to which the both ends of the lead screw 17 are connected are inserted into the case 20 from one side of the case 20, Epoxy is filled into the case 20 to prevent corrosion inside the jointed portion and to prevent corrosion inside the case 20.

However, as described above, there has been a problem that productivity is lowered due to the addition of a process in the process of filling epoxy into the case.

In addition, a long manufacturing time is required due to the curing time of the epoxy, resulting in a costly production cost.

(Patent Document 1) US5827962 us

SUMMARY OF THE INVENTION The present invention has been made in order to solve the conventional problems as described above, and it is an object of the present invention to improve the productivity of a brake level sensor.

Another object of the present invention is to simplify the manufacturing of the brake level sensor, thereby improving the productivity, and at the same time, to reduce the manufacturing cost as much as possible.

In order to achieve the above object,

A sensor unit including first and second terminals each having one end coupled to the end and a reed switch having both ends connected to the respective ends of the first and second terminals;

And a case having one end opened to receive the first and second terminals of the sensor unit and the reed switch therein,

Both ends of the reed switch contacting each end of the first and second terminals are welded by spot welding;
The level sensor comprises:
Wherein the first and second terminals and the first and second terminals are connected to each other so that the reed switch does not flow inside the case and the first end and the second end of the reed switch cover the sensor portion, A flow preventing cover formed with openings for facilitating spot welding on both sides of the two terminals and a cutout portion formed in the longitudinal direction of the reed switch so that the reed switch can be easily seated;
The cut-
At least one holder is symmetrically provided for seating the reed switch in the longitudinal direction of the guide portion;
The brake level sensor comprises:
And a shock absorbing damping sponge provided between the case and the anti-flow cover.

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Thus, according to the present invention, the productivity of the brake level sensor is improved.

Further, the manufacturing of the brake level sensor is simplified, and the productivity is improved, and at the same time, the manufacturing cost is minimized.

1 is a perspective view showing a brake level sensor for a conventional oil reservoir,
2 is a view showing another embodiment of a brake level sensor for an oil reservoir according to the present invention,
3 is a view showing still another embodiment of a brake level sensor for an oil reservoir according to the present invention,
4 is a view showing still another embodiment of a brake level sensor for an oil reservoir according to the present invention,
5 is a perspective view showing the outline of a brake level sensor for an oil reservoir according to the present invention.

Referring to FIG. 2, a brake level sensor 1 (hereinafter referred to as a "level sensor") for an oil reservoir according to the present invention includes a wheel 11, first and second terminals 13 and 15, And a case 20 having one end opened to accommodate therein the first and second terminals of the sensor unit 10 and the reed switch 17. Hereinafter, The configuration of the sensor unit 10 including the first and second terminals 13 and 15 and the reed switch 17 is substantially the same as that of the conventional configuration,

Both ends (see the "A" display portion) of the reed switch 17 contacting the respective ends of the first and second terminals 13 and 15 are welded by spot welding.

That is, a current is generated in the electrodes provided symmetrically with respect to the vertical direction of the first and second terminals 13 and 15 and the reed switch 17 so that the first and second terminals 13 and 15, (17) is melted and bonded.

By the spot welding, the joining work of the reed switch 17 is made easier, and the productivity is improved.

3 and 4, the level sensor 1 according to the present invention further includes a flow preventive cover 100. As shown in Fig.

The flow preventive cover 100 includes the first and second terminals 13 and 15 and the reed switch 20 having both ends connected to the first and second terminals 13 and 15, 17 do not flow. The synthetic resin material is injected and formed.

The method of providing the flow prevention cover 100 to the sensor unit 10 of the level sensor 1 includes providing the first and second terminals 13 and 15 of the sensor unit 10 in the injection mold, It is possible to perform insert molding which is integrally formed by injection and injection molding only the flow preventive cover 100 and then the outer circumference of the sensor part 10 is wrapped. Of course it is.

The flow preventive cover 100 covers the outside of the first and second terminals 13 and 15 in the longitudinal direction of one side of the barb 11 and covers both ends of the reed switch 17 Openings 110 are formed on both sides of the first and second terminals 13 and 15 so as not to be covered with the injection molding so as to facilitate spot welding.

The openings 110 formed as described above facilitate the spoke welding in the vertical direction of the first and second terminals 13 and 15 and the reed switch 17.

The flow preventive cover 100 is provided with a cutout 130 in the longitudinal direction in which the reed switch 17 is provided and a guide portion 131 protruding in both longitudinal direction of the cutout 130 So that the longitudinal direction side of the reed switch 17 is stably fixed.

The cutout portion 130 is provided symmetrically with at least one holder 133 in the longitudinal direction of the guide portion 131 so that the reed switch 17 can be firmly fixed.

The brake level sensor 1 is provided with a damping sponge 200 for damping shock between the case 20 and the flow preventive cover 100 to alleviate the shock applied to the sensor unit 10 .

As described in detail above, the level sensor 1 according to the present invention is a technique in which the first and second terminals 13 and 15 of the sensor unit 10 and the both ends of the reed switch 17 are joined by spot welding, The productivity of the level sensor is improved and the manufacture of the brake level sensor 1 is simplified, thereby improving the productivity and reducing the manufacturing cost as much as possible.

It is to be understood that the present invention is not limited to the specific exemplary embodiments described above and that various modifications may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. And such modified embodiments are within the scope of the claims of the present invention.

1: Brake level sensor 11:
13, 15: First and second terminals 17: Reed switch
20: Case 100: Flow preventive cover
110: opening 130:
131: guide portion 133: holder
200: Damping sponge

Claims

A sensor unit including first and second terminals each having one end coupled to the end and a reed switch having both ends connected to the respective ends of the first and second terminals;
A brake level sensor comprising first and second terminals of the sensor unit and a case having one end opened to receive the reed switch therein,
Both ends of the reed switch contacting each end of the first and second terminals are welded by spot welding;
The level sensor comprises:
Wherein the first and second terminals and the first and second terminals are connected to each other so that the reed switch does not flow inside the case and the first end and the second end of the reed switch cover the sensor portion, A flow preventing cover formed with openings for facilitating spot welding on both sides of the two terminals and a cutout portion formed in the longitudinal direction of the reed switch so that the reed switch can be easily seated;
The cut-
At least one holder is symmetrically provided for seating the reed switch in the longitudinal direction of the guide portion;
The brake level sensor comprises:
And a shock absorbing damping sponge provided between the case and the anti-flow cover.

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