KR200164012Y1 - Terminal block of auto car audio amp's - Google Patents

Abstract

The present invention discloses a terminal block for a car audio amplifier which is connected to a printed circuit board of an automotive amplifier and is used as an input / output terminal for inputting or outputting a voice signal or inputting a stable current even with a change in the intensity of a driving current.

The present invention drills the insertion hole of the input and output line on the front, the rear side has an opening in which the terminal piece is inserted, and the block housing formed with a plurality of storage holes formed with an input line tightening hole on the upper surface, and inserted into the plurality of storage holes, A terminal electrically connecting the printed circuit unit, a cover plate for closing the opening of the block housing and engaging the block housing to fix the terminal to the block housing, and fixing the input / output wire inserted into the terminal through the block housing by screw fastening. The structure of the terminal block is simple, and the structure of the terminal block is easy to manufacture and assemble, and the structure after assembly is stabilized, so that power is stably supplied to the car audio in a car with a lot of shock and shaking.

Description

Terminal block of auto car audio amp's

The present invention relates to a terminal block for a car audio amplifier, and more particularly, to secure an input / output wire for outputting an electric signal or a driving current from a car audio amplifier to a speaker side, and having a structure for transferring sufficient power. A terminal block for a car audio amplifier.

In automobiles, noise and vibration are severe due to road conditions and engine tremors. Therefore, in order to ensure good sound quality against vibrations and shocks generated under the same conditions, it is necessary to construct an audio system that can express good sound quality by using an amplifier having a good output rather than using a general amplifier. It is necessary.

In mounting the amplifier having a good output in a vehicle, an audio signal must be input from the audio main body to the amplifier printed circuit board, and an audio signal amplified from the printed circuit board to the speaker side must be output. The power supply for driving current must be connected to the printed circuit board. The voice signal input / output wires and power supply wires can be connected to the circuit configuration on the printed circuit board by installing them on the printed circuit board for amplifier for input / output to the printed circuit board. The terminal block for the car audio amplifier is used to make the connection.

A terminal block for a car audio amplifier has been proposed in advance. Among them, Patent Application No. 96-27980 has been filed as a technique close to the present invention.

1A to 1C, the present invention has been described with reference to FIGS. 1A to 1C, and each terminal unit 100 includes a case 110, a cuboid terminal 120, and a cover 130. The case 110 is provided with a square groove 111 therein and the coupling protrusion 112 and the coupling groove 113 on the side while the wire insertion hole 114 and the bolt in the front and upper, respectively An insertion hole 115 is provided, and the rectangular parallelepiped terminal 120 is fitted into the square groove 111 of the case 110, and the block fixing bolt 121, the wire insertion hole 122, and the bolt hole ( 123, and a tightening bolt 124 attached to the bolt hole (123).

In the terminal block for a car audio amplifier according to the above-described invention, the rectangular parallelepiped terminal 120 in which the wire fixing bolt 124 is fastened to the bolt hole 123 is inserted into the square groove 111 of the case 110. The terminal unit 100 is formed, and the other side unit 100 is brought into contact with the side of the terminal unit 100 so that the side engaging projection 112 forms a mating state with the coupling groove of the terminal unit at the opposite position. After assembling the required number in parallel, the terminal block for the car audio amplifier was finally formed with the carver 130 coupled to the side of the terminal unit.

In the above-described terminal block of the present invention, the fixing bolt hole 121 of the terminal block is closely attached to the printed circuit board (PCB) for the amplifier as shown in FIG. 1 (c) to insert the bolt 140 from the printed circuit board (PCB). It is fastened to the cuboid terminal 120 to form a circuit connection at the same time and fixed, and insert the wire into the wire insertion hole 122 of the cuboid terminal through the wire insertion hole 114 of the terminal unit 100 By tightening the tightening bolt 124 to fix the wire to the terminal unit (100).

In the above-described invention, the configuration of the case 110 for forming the unit 100 is complicated and the production work is difficult and the manufacturing cost is increased, and the terminal unit 100 is formed laterally to form a plurality of cases ( 110), it is difficult to assemble because the position of the bolt insertion hole formed in the case is not uniform when the contact part is low, and the distance between the terminal unit and the connection part of the printed circuit board does not match. The protrusions formed for molding on the side are scattered during the molding process, which makes it difficult to assemble the terminal block.

The object of the present invention is to provide a terminal block for a car audio amplifier, which is simple and robust in structure, which reduces production cost and lowers the occurrence rate of defects, and which can be firmly installed on the printed circuit board for the amplifier.

As described above, a plurality of storage grooves in which the internal space is divided and separated by a plurality of diaphragms, screw fastening holes drilled on the upper side of each storage groove, and wire insertion holes drilled on the front side of the storage grooves are provided. A formed block case; A rear cover plate which closes the opening so that the terminal pin inserted into the receiving groove of the block case is not separated; A terminal plate formed of a screw hole formed in the wire insertion hole into which the wire is inserted and connected to the copper foil of the printed circuit board to be inserted into the receiving groove; And a terminal block for a car audio amplifier consisting of a fastening screw which prevents the terminal from being detached from the block case at the same time as fixing the electric wire in the screw hole of the terminal.

Figure 1a is an exploded perspective view of a terminal block for a conventional car audio amplifier.

Figure 1b is an exploded perspective view showing a conventional car audio amplifier terminal block upside down.

1C is a perspective view of a terminal block mounted on a conventional car audio amplifier.

2 is an exploded perspective view of a terminal block for a car audio amplifier according to the present invention.

3 is an assembled perspective view of FIG.

Figure 4 is an exploded perspective view of an embodiment of a terminal block for a car audio amplifier according to the present invention.

Figure 5 is an assembled state of Figure 4;

Figure 6 is an exploded perspective view of another embodiment of a terminal block for a car audio amplifier according to the present invention.

Figure 7 (a) and (b) are cross-sectional views taken along line A-A of Figure 6 and line B-B of Figure 7 (a).

8 is another exploded perspective view of a terminal block for a car audio amplifier according to the present invention.

9 is a sectional view of the assembled state of FIG. 8;

Explanation of symbols for main parts of the drawings

150 ... Block case 151 ... Bulk 152 ... Terminal groove

152B ... Opening hole 153Screw fastener 154 ... Cable inserter

155 ... Border 155a ... Support 156A 156B ... Guide

157A ... Ventilation 157B ... Threader 157C ... Entrance

158 ... pin 159B ... guide hole 160 ... cover

161 Slit 162 Pin Hole 163 Positioning Pin

170,170A, 170B ... Terminal 171,171A ... Insert hole 172,172A ... Tightener

173,173A, 173B ... Connection 174.Combination thread 180 ... Thread

Hereinafter, a preferred embodiment of a terminal block for a car audio amplifier to which the present invention is applied will be described in detail with reference to the accompanying drawings.

150 is a block case. The block case 150 has a space in which a plurality of terminals are inserted therein, and a plurality of partition walls 151 are formed in this space to divide the space so that each terminal can be inserted and stored in the terminal hole 152. And a screw fastening hole 153 into which a screw 180 for fixing an electric wire is inserted, and is formed by drilling a wire insertion hole 154 into which an electric wire can be inserted into the front surface of the terminal hole 152. Formed through.

An outer surface of the block case 150 protrudes to form a rim 155 for locking the block case 150 to a fixed position of the amplifier panel, and a screw for fastening to the panel is inserted at an opposite position of the rim 155. The support portion 155a is provided with a through hole to be formed.

An opening of the terminal hole 152 of the block case 150 is formed by protruding a pin 158 for fixing the cover 160.

A slit for inserting the pinhole 162 and the fastening part 173 into which the pin 158 of the opening is inserted into the front surface of the cover 160 which contacts the opening and closes the terminal hole 152 of the block case 150 ( 161 is formed, and the positioning pin 163 is formed at a predetermined interval on the edge of the cover 160 to achieve a stable coupling with the printed circuit board.

The terminal 170 inserted into the terminal hole 152 of the block case 150 to electrically connect the wire and the printed circuit board is formed to be longer than or equal to the length of the terminal hole 152 of the block case 150. The front end of the insertion hole 171 is inserted into the insertion hole 171, the upper surface of the insertion hole 171 is formed with a fastening hole 172 is fastened to the screw 180 for fixing the end of the inserted wire. The rear side forms a connection portion 173 electrically connecting the printed circuit board and the terminal 170 by screwing or soldering.

The present invention having such a configuration inserts the terminal 170 to which the wire fixing screw 180 is fastened into each terminal hole 152 of the block case 150, and a connection part protruding to the rear of the block case 150. The opening of the terminal hole 152 is covered by inserting the slit 161 of the cover 160 into 173. In this case, the cover 160 prevents the terminal 170 from flowing in the terminal hole 152 while the pin 158 protruding around the opening is fitted into the pinhole 162 of the cover 160.

The block case 150 assembled as described above shows the connection portion 173 protruding through the cover 160 when the positioning pin 163 protruding from the upper surface of the cover 160 is coupled with the pin hole drilled into the printed circuit board. It is correctly connected to the copper foil of the printed circuit board which is not. Therefore, the soldering operation of the connecting portion 173 of the terminal 170 and the copper foil of the printed circuit board is easily performed and the block case 150 is fixed to the printed circuit board.

In the state in which the block case 150 is coupled to the printed circuit board, when the block case 150 is inserted into the outside of the through hole 191 formed in the panel 190 of the amplifier as shown in FIG. 3, the edge 155 of the block case 150 passes through the block case 150. Since it is caught on the inner surface of the 191, the terminal block of the present invention is installed in the amplifier of the vehicle by the operation to be fastened to the support 155a of the rim 155 by screwing in the front of the panel 190. Thereafter, the front end of the wire is inserted into the wire insertion hole 154 of the block case 150 exposed to the panel 190 surface of the amplifier, and the screw tightening hole 153 formed on the upper surface of the block case 150 is conventional. When the screw 180 is inserted by inserting a screwdriver, the wire is fixed to the terminal 170 and the printed circuit board and the wire are electrically connected to each other.

In the assembly structure as described above, the structure in which the terminal 170 is inserted into the terminal hole 152 provided in the block case 100 and the cover 160 is coupled to the opening of the terminal hole 152 has the terminal 170 in the block case ( Not only can be easily assembled to 150, but also stably secures the action, and the plurality of terminal holes 152 are formed integrally with the block case 150 in the structure of the cover pin 160, the positioning pin 163 When the combination with the printed circuit board accurately guides the positioning to achieve the effect of significantly reducing the failure rate, and the support portion (b) in close contact with the panel of the amplifier 155 formed on the outer surface of the block case 150 The fastening screw is tightened to the panel through 155a), so the installed state of the amplifier is very firmly fixed.

Example 1

In forming the block case 150 and the terminal 170, for example, the opening of the terminal hole 152 extends in the longitudinal direction as shown in FIG. 4 to form the guide portion 156A.

An upper surface of the guide portion 156A is formed by drilling a through hole 157A for insertion of a screw 174 connecting to the copper foil portion of the printed circuit board.

The terminal 170A is formed into a rectangular shape by forging, and is formed to penetrate the insertion hole 171A on the front surface and the fastening hole 172B on the upper surface, respectively, and to the rear of the terminal 170A on the printed circuit board. A connection hole 173 is formed by drilling a screw hole to fasten the coupling screw 174 connected to the copper foil of the.

Therefore, in the case of the rectangular parallelepiped terminal 170A by the forging process, a slit configuration is not required for the lid 160.

Temporary example having such a configuration, as shown in the cross-sectional view of FIG. 5, inserts the terminal 170A to which the wire fixing screw 180 is fastened into the terminal hole 152 of the block case 150, and of the block case 150. When the cover 160 is brought close to the opening and the pin 158 protruding from the opening is engaged with the pinhole 162 of the cover 160, the opening is closed and the terminal 170A is stable in the terminal hole 152. Is installed.

The block case 150 is moved to the copper foil of the printed circuit board (not shown) to couple the positioning pins 163 protruding from the cover 160 of the block case 150 to the pin holes drilled around the copper foil of the printed circuit board. In this case, the copper foil portion of the printed circuit board and the through hole 157A of the block case 150 coincide with each other. At this time, the coupling screw 174 is inserted into the copper foil portion to connect the connection portion 173A of the terminal 170A in the terminal hole 152. When fastened to the PCB, the printed circuit board and the terminal 170A are electrically connected to each other, and the block case 150 is fixed to the printed circuit board.

In the state in which the block case 150 is coupled to the printed circuit board, as shown in FIG. 5, the inside of the through hole 191 formed in the panel 190 of the amplifier is coupled to the block case 150 coupled to the printed circuit board. When inserted into the rim 155 of the block case 150 is caught on the inner surface of the through-hole 191, by inserting a screw in the front of the panel 190 to be fastened to the support 155a of the rim 155 The terminal block of the present invention is installed in the amplifier.

In this state, the screw 180 is inserted into the screw fastening hole 153 drilled in front of the upper surface of the block case 150, and the screw case 180 is tightened with the fastening hole 172A of the terminal 170A by a conventional screwdriver. When the front end of the wire is inserted into the insertion hole 171A of the terminal 170A through the wire insertion hole 154 of 150, the wire is fixed to the terminal 170A and the wire and the printed circuit board are electrically connected. Therefore, the same effect as the block case shown in FIG. 2 is shown as well as the printed circuit board and the terminal are screwed together so that the assembly configuration is simpler than the configuration of connecting the printed circuit board and the terminal by soldering and the cross-sectional area of the terminal is high. There is a further advantage that can provide an output.

Example 2

In another example of forming the block case 150 and the terminal 170A, the guide portion 156B is formed by extending the opening of the terminal hole 152 shown in FIG. 6 in the longitudinal direction.

The screw hole 157B formed on the upper surface of the guide part 156B is formed to have an inlet 157C by cutting the opening surface of the terminal hole 152. The guide groove 159B is formed from the inlet 157C of the screw hole 157B to the inside of the terminal hole 152 to be stepped, and a screw tightening hole 153B is formed on the upper surface of the block case 150 to guide the guide. Also stepped between the groove 159B and the screw tightening hole 153B.

The screw hole 157B formed on the upper surface of the block case 150 is formed larger than the diameter of the coupling screw 174, and the screw tightening hole 153B is larger than the diameter of the screw 180 fastened to the terminal 170A. It is preferable to form small.

When the terminal 170A is inserted into the terminal hole 152 of the block case 100 while the coupling screw 174 and the screw 180 are fastened to the terminal 170A, the terminal 170A is fastened to the terminal 170A. The screw 180 enters along the guide groove 159 shown in Figs. 7A and 7B, and the coupling screw 174 is inserted into the screw hole 157B through the inlet 157C of the opening.

This embodiment shows the same effect of the block case shown in Figures 2 and 5, as well as the combination of the printed circuit board and the terminal screw, so that the assembly configuration is simpler than the configuration of connecting the printed circuit board and the terminal by soldering The large cross-sectional area of the terminal has the advantage of providing high output. Especially, since the screw and fastening screw are pre-assembled and handled in the terminal, there is no inconvenience of losing a small screw and losing the terminal. When screwing the wire in the state, the screw is caught in the screw fastening hole to secure the terminal to the block case, and the screw is combined with the printed circuit board and the wire in the pre-tightened state, thereby reducing assembly time and productivity. There is further benefit to be improved.

Example 3

In forming the terminal grooves 152A and the terminals 170B of the block case 150, for example, the guide portion 156B is formed by extending the opening of the terminal hole 152 shown in FIG. 8 in the longitudinal direction. The inlet 157C is formed by cutting the guide part 156B, and a hole 180 is inserted from the inlet 157C to the inside of the terminal hole 152 to insert the screw 180 that is fastened to the terminal 170B. The guide groove 159B is formed.

Then, the inlet bottom of the opening of the terminal hole 152 is cut to form the opening hole 152B.

The terminal 170B is formed in a rectangular shape by forging, and is formed to penetrate the insertion hole 171B of the electric wire on the front surface, and to pierce the fastening hole 172B of the screw on the upper surface thereof, and to the rear of the terminal 170B. The fastening portion 173B connected to the copper foil portion of the printed circuit board, which is not formed, is bent to one side with a thin thickness so that its tip can be inserted into the copper foil portion of the printed circuit board.

This embodiment shows the same effect of the block case shown in Figs. 5 and 7 (a) and (b) as well as the printed circuit board and the terminal 170A are screwed together so that the printed circuit board and the terminal are soldered. The assembly configuration is simpler than the connecting structure, and the cross-sectional area of the terminal is large, and thus, there is an advantage of providing a high output. In particular, the terminal hole of the block case 100 in a state in which the screw 180 is fastened to the terminal 170B ( 152 is inserted into the screw 180 is guided along the guide groove 159B to prevent the loss and detachment of the screw in advance, the head of the screw 180 in the wire tightening hole 172B when tightening the wire Hanging stable structure is provided. Since the fastening part 173B protrudes downward through the opening hole 152B, the terminal 170A is easily coupled with the copper foil of the printed circuit board as shown in FIG. In the printed circuit board and the wire is made because the assembly time is shortened and the productivity is further improved.

As described above, the present invention can form a plurality of terminal grooves independently in one block case and fix the terminals with a cover coupled to the opening of the terminal grooves, thereby simplifying the manufacture and assembly of the terminal blocks. Since the assembly dimensions are not changed after the assembly, the occurrence rate of defects during assembly is significantly reduced, and the terminal hole and the screw can be handled stably with the configuration of the terminal hole.

Claims (6)

A plurality of terminal grooves in which internal spaces are divided and separated by a plurality of diaphragms, a screw tightening hole drilled in an upper portion of each terminal groove, and a wire insertion hole formed at a front side of each terminal groove; A cover for closing an opening of the terminal groove so that the terminal inserted into the terminal groove of the block case is not fixed or detached; A terminal having an insertion hole inserted into the terminal groove to be in close contact with the wire insertion hole, a screw hole drilled through the insertion hole, and a fastening portion connected to the copper foil of the printed circuit board; A terminal block for a car audio amplifier comprising a screw for fixing an electric wire in a screw hole of the terminal and fixing the terminal to a block case. According to claim 1, wherein the block case is a guide portion extending the opening in the longitudinal direction to further extend the length of the terminal groove, the guide portion is a through hole formed for the insertion guide of the coupling screw, protruding from the opening to the cover The terminal block for car audio, characterized in that it further comprises a cover for blocking the opening of the terminal groove by having a pin to be inserted, the pin hole is inserted into the opposite position. According to claim 1, wherein the block case is a guide portion extending the opening in the longitudinal direction to further extend the length of the terminal groove, the guide portion is a through hole formed for the insertion guide of the coupling screw, protruding from the opening to the cover The terminal block for car audio, characterized in that it further comprises a cover for blocking the opening of the terminal groove by having a pin to be inserted, the pin hole is inserted into the opposite position. According to claim 1, The terminal groove of the block case is a screw hole for opening and closing the coupling screw inserted into the upper surface through the copper foil of the printed circuit board by cutting at the inlet of the opening, the lower surface perpendicular to the direction of the wire insertion hole And an opening hole for inserting a terminal having a fastening portion in a direction thereof. 2. The terminal of claim 1, wherein the terminal is pressed into a thin metal sheet to bend the front surface to form a screw hole through the upper surface of the wire insertion hole to form a screw hole, and the terminal is extended in the longitudinal direction to the copper foil of the printed circuit board. The terminal block for car audio, characterized in that to form a fastening portion for soldering to a longer length than the terminal groove. According to claim 1, The terminal is a rectangular parallelepiped by the forging process is formed in the same length as the terminal groove of the block case to form a wire insertion hole in the front, through the screw hole through the wire insertion hole to form a screw of the block case The terminal block for car audio, characterized in that the fastening portion for fixing the coupling screw passing through the copper foil of the printed circuit board in the position corresponding to the hole by a screw hole.