KR200231127Y1 - Cigarette lighter assembly for vehicle - Google Patents

Abstract

The present invention relates to a cigarette lighter assembly for a vehicle, the configuration of the cylindrical socket housing for inserting and receiving the cigarette lighter plug, the inner end of the cylindrical end by a high information bolt and a fixing nut fastened through the cylindrical end of the socket housing, In a cigarette lighter assembly for a vehicle including a bimetal plate, a ceramic insulator, a negative electrode terminal, an insulation washer, and a positive electrode terminal, each of which is disposed and fixed to the outside sequentially, interposed between the bimetal plate and the ceramic insulator to conduct a positive current to the cigarette lighter plug. When overcurrent is applied, the battery itself is overheated to a temperature higher than a specified value and tilts downward to come into contact with the inner surface of the socket housing to generate a short, thereby melting the cigarette lighter-dedicated fuse of the vehicle main fuse box. Make the supply cut off It is characterized in that the bimetal blanking short-circuit element is provided. Therefore, since only the cigarette lighter-only fuse of the main fuse box can be replaced, it can be easily and easily maintained, can be quickly coped, and the cost can be reduced by a single assembly process.

Description

Cigarette lighter assembly for vehicle

The present invention relates to a cigarette lighter assembly for a vehicle, and more particularly, when there is a risk of fire due to overheating inside the cigarette lighter, the bimetal blanking short circuit element in the cigarette lighter assembly is shorted due to thermal deformation. Accordingly, the fuse of the cigarette lighter of the main fuse box is blown off and the power supply is cut off, so that it can be easily maintained without disassembling the socket housing, and the vehicle can be saved by the single assembly process. A cigarette lighter assembly.

In general, a cigarette lighter assembly is one of the accessories attached to a vehicle for the convenience of a smoker, and serves as a safety device that shuts off a current exceeding a specified value when the cigar lighter plug is overheated in a socket housing. There is a built-in fuse.

As is well known, a fuse is a fusible alloy that is heated when a current exceeding a specified value flows in a closed circuit and is finally blown to automatically shut off an electric circuit. The fuse is a plate, a seal, a plug, or a tubular shape. It is manufactured and used in various ways, such as, the main vehicle cigar lighter assembly is a predominantly equipped with a lead (Pad) fuse of the form of a thread.

1 and 2 show a cigarette lighter assembly for a vehicle according to the prior art, FIG. 1 is a plan view of a socket housing 20, and FIG. 2 shows a connection structure to a main part of the cigarette lighter assembly for a vehicle according to FIG. One III-III line joining cross section.

As shown in the figure, a cylindrical socket housing 20 for receiving and receiving a cigar lighter plug (not shown) corresponding to the heating load, and a high information bolt fastened through the cylindrical end of the socket housing 20 ( 31) and a bimetal plate 32 and a ceramic insulator, which are arranged and fixed to the inside and the outside of the cylindrical end part sequentially by a fixing nut 38, respectively.

(33), negative terminal (34), insulating washer (36), positive terminal (35), insulating washer (103), fuse terminal

And a lead fuse 101 connecting the anode terminal 35 and the fuse terminal 102.

Both ends of the lead fuse 101 are compressed and connected to the positive terminal 35 and the fuse terminal 102, respectively, and each terminal portion 34a of the negative terminal 34 and the positive terminal 35 is connected to each other.

35a is connected to a power source (not shown), and the cigarette lighter plug is inserted into the socket housing 20 to form a closed circuit.

In the drawing, reference numeral 21 denotes an open side part that is open so as not to interfere during thermal deformation of the bimetal plate 32, and 34b and 35b denote respective terminal portions of the negative electrode terminal 34 and the positive electrode terminal 35, and 35a respectively. The body plate of the positive electrode terminal 35 is shown.

The high information bolt 31 and the socket housing 20 are fused by the ceramic insulator 33, the body plate 35a of the negative electrode terminal 34 and the positive electrode terminal 35, the positive terminal 35 and the fuse. The terminals 102 are insulated from each other by the insulating washers 36 and 103, and the high information bolt 31 and the fuse terminal 102, which are in contact with a heating tube (not shown) of the cigarette lighter plug, are connected to each other. While being in close contact with each other, the anode terminal 35 and the fuse terminal 102 are lead fuses.

Connected by a 101 and when a cigarette lighter plug is inserted into the socket housing 20, the terminal portion 35a, the lead fuse 101, the fuse terminal 102 and the high information bolt of the positive electrode terminal 35

When the cigar lighter plug is inserted into the socket housing 20 by the outer side of the cylindrical housing and the negative electrode terminal 34 are in close contact with each other. Terminal portion 34a and the socket housing of the negative terminal 34

The closed circuit is constituted by energizing the cigar lighter plug through the outside of the cigar lighter plug, thereby heating the heat generating tube of the cigar lighter plug.

In the configuration of such a closed circuit, if the cigar lighter plug generates more heat than the specified value, the lead fuse 101 is melted to cut off the electric circuit.

However, the conventional cigarette lighter assembly for a vehicle has a problem that its assembly process is complicated and difficult, and the price of a single product increases.

In addition, the lead fuse melted when the lead fuse 101 is melted in the socket housing 20 and the terminal portion

(30) Since it is fixed to the periphery, if you want to replace the molten lead fuse 101, loosen the high information bolt 31 inside the socket housing 20 and separate each part to remove the socket housing 20 and the terminal portion The entire cigarette lighter assembly including the 30 must be replaced with a new one, thus causing a problem incurring time and cost for such maintenance.

The present invention was devised to solve the above-mentioned problems. When there is a risk of fire due to overheating in the cigar lighter, the fuse of the cigar lighter for the main fuse box is melted by a short circuit in the cigar lighter assembly. In order to provide a vehicle cigarette lighter assembly that can be easily maintained without disassembling the socket housing to replace the internal fuse, quick response, and cost reduction by the single assembly process. Its purpose is.

1 is a plan view showing a cigarette lighter assembly for a vehicle according to the prior art.

FIG. 2 is a cross-sectional view taken along line III-III illustrating a connection structure to a main part of the cigarette lighter assembly for a vehicle according to FIG. 1.

3 is an exploded perspective view of a cigarette lighter assembly for a vehicle according to the present invention.

4 is a cross-sectional view of the coupling of the cigarette lighter assembly for a vehicle according to the present invention.

※ Explanation of codes for main parts of drawing

10; Cigarette lighter plug 11; handle

12; Outer ring 13; Heating tube

20; Socket housing 21; Side opening

22, 32a, 33a, 34c, 35c, 36b, 37a; Through hole

31; High information 32; Bimetal Plate

33; Ceramic insulators 33b; Engaging protrusion

34; Cathode terminals 34a, 35a; Body plate

34b, 35b; Terminal section 35; Anode Terminal

36, 103; Insulating washers 36a; Body

36c; Engaging projection insert 36d; Home

36e; Terminal insert groove 37; Bimetal Blanking Short Circuit Element

38; Fixing nut 101; Lead fuse

102; Fuse Terminal

Cigarette lighter assembly for a vehicle according to the present invention for achieving the above object is the cylindrical end of the cylindrical housing by inserting and receiving the cigar lighter plug, the cylindrical end of the high information bolt and the fastening nut fastened through the cylindrical end of the socket housing In a cigarette lighter assembly for a vehicle including a bimetal plate, a ceramic insulator, a cathode terminal, an insulation washer, and an anode terminal, each of which is disposed and fixed to the inside and the outside, respectively, interposed between the bimetal plate and the ceramic insulator and positive current to the cigarette lighter plug. When the over current is applied, it overheats itself to a temperature higher than the specified value and tilts downward to come into contact with the inner surface of the socket housing to generate a short, thereby melting the cigarette lighter-only fuse of the vehicle main fuse box. To cut off the power supply So that is characterized in that the short-circuit device provided with a bimetal blanking.

In addition, in the vehicle cigarette lighter assembly according to the present invention, the bimetal blanking short-circuit element is preferably formed in the center through-holes to be fixed by a high information bolt between the bimetal plate and the ceramic insulator.

In addition, in the cigarette lighter assembly for a vehicle according to the present invention, the bimetal blanking short-circuit element is overheated when an overcurrent is applied, and both ends thereof are inclined downward to be in contact with the inner surface of the socket housing, and both ends thereof at both sides. It is preferably formed into an extended plate shape.

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

3 and 4 show the structure of the cigarette lighter assembly for a vehicle according to the present invention, Figure 3 is an exploded perspective view according to the present invention, Figure 4 shows a combined cross-sectional view according to the present invention, respectively.

As shown in the figure, the vehicle cigar lighter assembly according to the present invention is a cylindrical socket housing (Socket housing) 20 for receiving and inserting a cigarette lighter plug (10) corresponding to the heating load, The bimetal plate 32 is fixedly arranged in and out of the cylindrical end by the high information nut 31 and the fixing nut 38 fastened through the cylindrical end of the socket housing 20, respectively. And a bimetal blanking short-circuit element 37, a ceramic insulator 33, a cathode terminal 34, an insulation washer 36 and an anode terminal 35. It is made up of.

The cylindrical end of the socket housing 20, the bimetal plate 32, the bimetal blanking short circuit element 37, the ceramic insulator 33, the negative terminal 34, the insulating washer 36 and the positive terminal 35 A through hole (22) (32a) that can penetrate the high information wool 31 in the central portion

(37a) (33a) 34c (36b) 35c are formed respectively, and the bimetal plate 32, the bimetal blanking short circuit element 37, and the ceramic insulator 33 are cylinders of the socket housing 20. Inside the end portion, the negative terminal 34, the insulating washer 36 and the positive terminal 35 are respectively provided outside the cylindrical end of the socket housing 20.

The cigar lighter plug 10 is provided with a heating tube 13 of the electrical connection to the positive terminal 35 and arranged in a concentric manner, the handle 11 that can be held by the user at one end of the hand 11 Is formed, the outer ring 12 is formed on the outer circumference of the heat pipe 13 is in contact with the inlet circumference of the socket housing 20 and electrically connected to the negative electrode terminal 34.

The bimetal plate 32 is formed by bending a bimetal plate having a predetermined width into a predetermined shape, and both ends thereof are elastically hung in grooves formed in the outer circumference of the heating tube 13 to hold the cigar lighter plug 10. When the cigarette lighter plug 10 is heated to a predetermined temperature, the cigarette lighter plug 10 is taken out while being thermally deformed and opened.

The bimetal blanking short circuit element 37 is interposed between the bimetal plate 32 and the ceramic insulator 33 so as to be fixed by the high information bolt 31 in the center thereof.

(37a) is provided and is formed in the English letter V-shape, the both ends are open to both sides, when the overcurrent is supplied and overheated to a temperature higher than the specified value, both ends are inclined downward due to thermal deformation and then of the socket housing (20) By generating a short in contact with the inner surface, the cigarette lighter-only fuse (not shown) of the vehicle main fuse box (not shown) is melted, and thus the power supply can be cut off.

The ceramic insulator 33 has coupling protrusions 33b protruding from both sides of the through hole 33a, so that the ceramic insulator 33 is formed through the through holes 22 and 34c formed in the socket housing 20 and the negative electrode terminal 34, respectively. The coupling protrusion insertion hole 36c of the insulating washer 36 is to be inserted and coupled.

In addition, the socket housing 20 is formed on both sides of the cylindrical portion open side 21 is opened so as not to interfere with the thermal deformation of the bimetal plate (32).

The negative electrode terminal 34 has a through hole 34c formed on a disc-shaped body plate 34a, and a terminal portion 34b is formed in a structure bent at 90 ° on one side thereof.

The anode terminal 35 also has a terminal portion 35b formed on one side of the body plate 35a in the same manner as the cathode terminal 34, and each of the cathode and anode terminals 34 and 35 is formed. Terminal portions 34b and 35b are disposed adjacent to both surfaces of the insulating washer 36 so as to maintain an angle of 90 degrees.

In addition, the insulating washer 36 forms a disc-shaped body, and is disposed adjacent to one side of the body 36a from the rear thereof so that the terminal portion 34b of the negative electrode terminal 34 bent is drawn out. 36e is formed, and a seating groove 36d is formed on the surface of the body 36a so that the body plate 35a of the positive electrode terminal 35 can be disposed adjacent thereto, and a ceramic is formed in the center of the body 36a. Insertion hole for inserting the engaging projection 33b of the insulator 33

A through hole 36b through which the 36c and the high information bolt 31 pass is formed.

Referring to the operation of the vehicle cigarette lighter assembly according to the present invention having the configuration as described above are as follows.

First, when the cigarette lighter plug 10 is inserted through the inlet of the socket housing 20, the heating tube 13 of the cigarette lighter plug 10 is gripped by both ends of the bimetal plate 32 so that the end thereof is a high information bolt. (31) abuts, the outer ring of the cigarette lighter plug (10)

12 is in contact with the inlet side of the socket housing 20 to form a closed circuit.

That is, current is supplied to the heat generating tube 13 of the cigar lighter plug 10 through the terminal portion 35a of the positive electrode terminal 35 and the high information bolt 31, and the terminal portion of the negative electrode terminal 34.

The outer ring 12 of the cigar lighter plug 10 is energized through the 34a and the socket housing 20 to heat the heat generating tube 13 of the cigar lighter plug 10.

When the heat generating tube 13 of the cigar lighter plug 10 is heated to a predetermined temperature by the configuration of such a closed circuit, thermal deformation occurs in the bimetal plate 32 so that the cigar lighter plug 10 is blown out. will be.

On the other hand, when the apparatus operates abnormally and heat of the cigar lighter plug 10 generates a predetermined value or more, the bimetal blanking short circuit 37 causes thermal deformation, and the bimetal blanking short circuit 37 is continuously bent so that the end thereof is a socket. The positive electrode terminal 35 is electrically connected to the negative electrode terminal 34, which is in contact with the socket housing 20, to generate a short (short circuit). The cigarette lighter-only fuse provided in the vehicle's main fuse box is melted to block the electric circuit.

Short-circuit here means that the anode of the power supply is directly connected without load in the middle of the electric circuit. In the present invention, the thermal expansion coefficient is different from each other to form a metal plate facing each other. By using the properties of bimetal that is proportionally deformed according to the change, a deliberate short-circuit state due to thermal deformation is maintained in case of overheating of a specified value, thereby fusing the cigarette lighter-only fuse in the vehicle main fuse box.

Thereafter, when the inside of the socket housing 20 is cooled after a time has elapsed, the bimetal blanking short circuit element 37 is restored to its original shape and spaced apart from the socket housing 20 to maintain a non-contact state. There is no need to disassemble the socket housing 20 and replace it with a new one, but by simply opening the vehicle main fuse box and simply replacing the fuse, all maintenance is completed.

According to the cigarette lighter assembly for a vehicle according to the present invention as described above, there is a risk of fire due to the overheating of the inside of the cigarette lighter by interposing a bimetal blanking short circuit element that causes thermal deformation between the bimetal plate and the ceramic insulator in the cigarette lighter assembly. When the fuse in the cigar lighter assembly is cut off by the short circuit in the cigar lighter assembly, the power supply is cut off and the power supply is cut off. Since only the cigarette lighter of the main fuse box needs to be replaced without disassembling, it can be easily and easily maintained, can be quickly responded, and the cost can be reduced by a single assembly process.

As described above, the present invention has been described for only one preferred embodiment, but it is apparent to those skilled in the art that various changes and modifications can be made within the technical spirit of the present invention based on the above embodiments. It is natural that such modifications and modifications fall within the scope of the appended utility model registration claims.

Claims (3)

A bimetal plate, a ceramic insulator, which is arranged in and out of the cylindrical end by a cylindrical socket housing for inserting and receiving a cigar lighter plug, and a high information bolt and a fixing nut fastened through the cylindrical end of the socket housing, respectively. In the cigarette lighter assembly for a vehicle comprising a negative terminal, an insulating washer and a positive terminal, Interposed between the bimetal plate and the ceramic insulator, a positive current is applied to the cigar lighter plug, and overheated to a temperature higher than a prescribed value when an overcurrent is applied, and tilted downward to contact the inner surface of the socket housing to generate a short. A cigar lighter assembly for a vehicle, characterized in that a bimetal blanking short circuit element is provided to blow off the power supply for the cigarette lighter of the fuse box. The cigarette lighter assembly according to claim 1, wherein the bimetal blanking short circuiting element has a through hole formed at a center thereof so as to be fixedly supported between the bimetal plate and the ceramic insulator by a high information bolt. The plate member according to claim 1 or 2, wherein the bimetal blanking short-circuit element is concave in its center portion and both ends thereof extend in both sides so that both ends thereof are inclined downward and contact the inner surface of the socket housing while being overheated when an overcurrent is applied. The cigarette lighter assembly for a vehicle, characterized in that the shape.