KR100842375B1 - Assembling and connection device for electronic kit - Google Patents

Abstract

The present invention provides a plurality of terminal pieces in the form of ribs protrude upward and downward in the body of the connection block provided according to a predetermined standard. By mounting a pair of molded connection terminals facing each other, to improve the bonding force with the wire or lead In addition to improving the stability of circuit operation, it is also possible to insert and couple wires in both up and down directions while simultaneously widening the spacing of some of the plurality of terminal pieces in a simple and quick way. The present invention relates to a connection block for a prefabricated electronic circuit which can be implemented to improve the efficiency of the practice.

Connecting block, body, upper / lower coupling hole, connecting terminal, terminal pin, fixing piece, fixing body

Description

Assembling and connection device for electronic kit

1 is a schematic exploded perspective view of the present invention.

2 is a side cross-sectional view of the coupled state in accordance with the present invention.

Figure 3a, 3b is a cross-sectional view showing a state of use in accordance with the present invention.

Figure 4 is an exploded perspective view showing another embodiment according to the present invention.

5 is a side cross-sectional view of the coupled state of FIG. 4.

Figure 6 is an exploded perspective view showing another embodiment according to the present invention.

7 is a side cross-sectional view of the coupled state of FIG. 6.

8 is an exemplary view showing a use state according to the present invention.

      *** Description of the symbols for the main parts of the drawings ***

      10: body 12, 32: upper and lower coupling holes

  14, 34: fixing piece 16: seating groove

      18: incoming hole 20: connection terminal

      22: terminal pin 30: fixture

      36: seating protrusion W: bulkhead

The present invention relates to a connection block for use in a prefabricated electronic circuit, and more particularly, a plurality of wires or integrated circuits respectively coupled by the connection terminal by mounting connection terminals of a predetermined type in the interior of the connection block to face each other. The back of the present invention relates to a connection block for a prefabricated electronic circuit which can be firmly connected to improve the stability of the circuit.

In general, engineering students have mainly used breadboards to acquire basic knowledge of electrical and electronic circuits. The breadboards are mostly imported and used, as is well known, so that the circuit configuration can be completed relatively easily. However, it is very complicated to figure out the characteristics (direction), and in order to check the connection of the correct circuit, it is necessary to connect the circuit connection line separately. Since there is a limit on the number of times, semi-permanent use is not possible, which causes many problems, such as a waste breadboard acting as a major factor of environmental pollution.

As an alternative to solve the above problems, the present inventors have applied for and registered in Utility Model Registration No. 0169744 (the solderless electronic circuit assembly block) and Patent Registration No. 0432150 (element connection block of the electronic circuit assembly block). As shown in Fig. 1, various types of connection blocks having one to three or more contacts are assembled on a circuit component board that can be used semi-permanently, and each electronic device is directly connected or wired through the connection block for a specific purpose. As it is possible to complete the electronic circuits used in the system, it is not only easy accessibility but also various circuits can be configured at low cost (no purchase of multiple boards), and in particular, it can be used as a training textbook for the curriculum. To increase the learning effect.

Here, the electronic device includes a resistor, a capacitor, a transistor, and an IC integrated circuit in which predetermined leads are protruded, respectively, and when such electronic devices are installed, a connection block having coupling holes corresponding to the number of leads is provided. do.

The connection block has a plurality of coupling holes are formed on the upper surface, the lower portion is opened, the body is formed with a block coupling portion, and a plurality of coupling terminals protrude integrally to correspond to the coupling hole inside the body. A wire or a lead of an electronic device is coupled between the coupling terminals of the connection terminal to form an electronic circuit.

That is, the coupling terminal of the connection terminal is bent to the ground by the upper pair of the pair of terminal pieces so that the tension acts on the grounded part to securely fix the lead of the wire or electronic element inserted therebetween The stability of the was to be improved.

However, the conventional connection terminal as described above is frequently inserted and detached from the wire or lead due to the characteristics of the learning tool, the tension force applied to the upper pair of the terminal piece becomes weak during long-term use, inserted between them. Could not be fixed tightly, resulting in an unstable malfunction of the circuit, and the economic burden of replacing the expensive connecting block as well as the entire coupling terminal and purchasing a new expensive connecting block when replacing As well as accompanying, the distance between the conventional terminal pieces is formed to maintain 2.54mm to facilitate the connection with the lead of the main electronic device, such a narrow interval arrangement is due to the nature of the connection block used mainly for education or practice, the wire and lead There was a problem that was not easy to plug in and use.

Accordingly, in order to solve the above problems, the present invention provides a plurality of terminal pieces having a rib shape projecting upward and downward in a body of a connection block provided in a predetermined standard. By mounting a pair of connection terminals formed opposite to each other, By improving the coupling force with the wires or leads to improve the stability of the circuit operation, as well as to widen the intervals of some of the plurality of terminal pieces at the same time, and to insert and couple the wires in both up and down directions. It is an object of the present invention to provide a connection block for a prefabricated electronic circuit which can easily and quickly carry out the intended circuit configuration to improve the efficiency of practice.

In order to achieve the above object, the present invention is connected to the circuit component plate in the connection block for the prefabricated electronic circuit to complete the circuit of a special purpose by connecting a plurality of wires or leads of the electronic device, with the circuit component plate It is injection-molded in the form of a rectangular parallelepiped in which the lower part is open, and a plurality of upper coupling holes are formed at predetermined intervals on the upper surface thereof, and a plurality of fixing pieces are formed downward on the bottom of the upper coupling hole, respectively. A seating groove is formed inwardly at both sides thereof, and a body having an inlet hole integrally formed therein so that an electric wire can be drawn in the lower portion thereof; A connection terminal having a plurality of terminal pins each of which is bent at an upper / lower portion so as to be firmly supported by a pair of two sets facing each other inside the body so as to firmly support an electric wire or a lead inserted through the upper coupling hole; It is tightly inserted into the open lower portion of the body, a plurality of lower coupling holes through the upper surface, the same number of fixing pieces as the plurality of fixing pieces formed on the body is formed to be upward, coupled to the seating grooves on both sides It is characterized in that the connecting terminal is firmly mounted to the inside of the body by a fixing body integral with the mounting projection.

Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

1 is a schematic exploded perspective view of the present invention, Figure 2 is a side cross-sectional view of the combined state according to the present invention, Figures 3a, 3b is a cross-sectional view showing a state of use according to the present invention, Figure 4 Is an exploded perspective view showing another embodiment according to the present invention, Figure 5 is a side cross-sectional view of the combined state of Figure 4, Figure 6 is an exploded perspective view showing another embodiment according to the present invention, Figure 7 is a figure Side cross-sectional view of the combined state of 6 and Figure 8 is an exemplary view showing a state of use in accordance with the present invention.

As shown, the connection block 1 of the present invention is used to configure a specific purpose circuit by being coupled to the upper portion of the circuit board 100, the body 10 and the connection terminal 20 and the fixture 30 It is composed largely.

The body 10 is injection-molded by a transparent or opaque synthetic resin material in the form of a rectangular parallelepiped, the upper surface is formed with a plurality of upper coupling holes 12 at predetermined intervals, the upper coupling hole 12 The fixed piece 14 of a certain length protrudes downwardly toward the center thereof, and the seating grooves 16 are formed on both sides inwardly, respectively, and at the same time, a long through hole is formed so that the wire 40 can be inserted into the lower portion thereof. What is necessary is just to form the ball 18, respectively.

The connection terminal 20 is made of sheet metal, such as nickel silver (Ni-Silver) or various terminal materials for electrical purposes, and the like. The terminal pins 22 having the same number as the upper coupling holes 12 are ribbed. It is formed integrally so as to, the upper and lower ends of the terminal pins 22 are each provided in one set by bending in a predetermined direction, the connection terminal 20 is the bent portion facing each other and grounded therebetween The leads 40 or the leads of the electronic device to be inserted will be closely fixed.

In addition, it is preferable that the connection terminal 20 should be provided with a material and a structure capable of minimizing electrical resistance due to its characteristics. Each of the two sets of connection terminals 20 independently separated may bend the upper and lower ends thereof. By making the bent parts closely contact each other and connecting them together, the bent upper / lower terminal pins 22 complement each other, so that the resistance between the closest terminal pins 22 may be made of nickel silver material. In this case, the average resistance was 0.0081Ω, and the resistance between the furthestly located terminal pins 22 averaged 0.0136 평균, indicating that there is an excellent characteristic that exceeds the limit of 0.1 ~ 0.4Ω as suggested by the breadboard. I could figure it out.

The fixture 30 is injected and molded into a synthetic resin and inserted into the open lower portion of the body 10 to firmly fix the connection terminal 20. A plurality of wires 40 or leads are inserted into the upper surface. To form a plurality of lower coupling holes 32, and to protrude a plurality of fixing pieces 34 to one side or both sides of the lower coupling hole 32 to the center, the mounting groove 16 on both sides Each of the mounting protrusions 36 to be integrally projected so as to be combined with).

At this time, the upper / lower coupling holes 12 and 32 and the terminal pins 22 may maintain 2.54 mm or 5 mm in the center spacing so as to easily connect the electronic device or insert the wire 40. It is preferable to form.

The assembly of the connection block (1) consisting of the respective components as described above, first, the connection terminal 20 on the top of the fixing body 30, that is, a plurality of fixing pieces 34 protruding upward 1 When the ground is set to face each other so that the terminal pins 22 of the connection terminal 20 are positioned to face each other, the lower coupling hole 32 is formed through the center of the terminal pins 22 and the upper surface of the fixture 30. ) Will be coincident.

Subsequently, inserting the fixing body 30 on which the connection terminal 20 is seated into the open lower portion of the body 10, the mounting groove 16 formed in the interior of the body 10 and both sides of the fixing body 30 A plurality of fixing pieces 14 protruding downwardly into the body 10 at the same time that the formed seating protrusions 36 are coupled to each other are inserted between the terminal pins 22 of the connection terminal 20 and the connection terminal 20. ) Is firmly mounted inside the body 10 to form a so-called one-terminal connection block (1).

On the other hand, the action of the assembled assembly block 1 is inserted into the wire 40 through the upper coupling hole 12 of the body 10, as shown in Figure 3a, 3b, and continues to the bottom When inserted between the grounded upper end of the positioned connection terminal 20, that is, bent independently and having terminal restoring force 22, the restoring force (elasticity) of the terminal pin 22 is applied to the wire 40 to provide a firm connection state. In this state, the wire 40 is inserted deeper so that its end is inserted between the grounded lower end of the connection terminal 20, that is, the bent lower terminal pin 22, and the wire ( 40) can be fixed in double to maintain a more solid connection.

In addition, the plurality of wires 40 are introduced through the inlet holes 18 formed on both sides of the body 10, and the ends thereof are connected through the lower coupling holes 32 formed on the upper surface of the fixture 30. What is necessary is to insert variously between the terminal pins 22 in the lower part of the terminal 20 so that it can be connected firmly, and can manufacture various types of circuits.

On the other hand, Figures 4 to 7 show a connection block of another embodiment of the present invention, a so called three-terminal connection block (1 ') and IC connection block (1 "), the configuration is the one-terminal connection block At least three to ten sets of two connection terminals 20 mounted inside the body 10 of the upper part (1) further include upper and lower coupling holes 12 corresponding to the number of the connection terminals 20 ( By using a plurality of the body 10 and the fixed body 30 formed with a plurality of 32 is to be firmly mounted to the connection terminal 20 provided in plurality.

At this time, a plurality of connection terminals 20 of the two pairs in the vicinity of the upper coupling hole 12 in proportion to the number of the connection terminal 20 on the bottom surface inside the body 10 so that 3 to 10 sets can be mounted The partition wall W may be formed integrally. That is, when the connection terminals are provided in groups of 3 to 10, the number of the partition walls W is increased in proportion to each other so that each connection terminal 20 is inserted and fixed independently so that the wire 40 or the lead is stable. It is desirable to be able to be connected.

On the other hand, the present invention is not limited to the above embodiments, and various modifications can be made in the art without departing from the scope of the claims.

Therefore, by providing the connection block for the prefabricated electronic circuit of the present invention as described above, to improve the coupling force and the integration degree with the wire or lead to maximize the stability of the circuit operation, using a plurality of wires using the upper / lower coupling holes It can be connected to various circuits, and the distance between some terminal pins can be separated by a certain distance, so that the connection of wires can be easily and quickly performed to improve the efficiency of practice, When a problem occurs, only one connection block can be replaced and used continuously, which is a useful invention that can minimize the waste of resources and the economic burden on the user.

Claims (3)

In the connection block for a prefabricated electronic circuit which is coupled to the circuit board to connect a plurality of wires or leads of the electronic device to complete a special purpose circuit, Injection and molding in the form of a rectangular parallelepiped with the lower portion open to allow the circuit component plate 100 to be coupled, a plurality of upper coupling holes 12 through the upper surface at predetermined intervals, the upper coupling hole 12 A plurality of fixing pieces 14 are formed downward on the bottom surface thereof, and a seating groove 16 is formed on both sides thereof inwardly, and an inlet hole 18 is formed at the lower portion thereof to allow the wires 40 to be drawn. A body 10 through which the body is integrally formed; A plurality of terminal pins each of which the upper and lower portions are bent in order to firmly support the wire 40 or the lead inserted through the upper coupling hole 12 are installed in the body 10 facing each other. A connecting terminal 20 having 22 formed at predetermined intervals; It is tightly inserted into the open lower portion of the body 10, a plurality of lower coupling holes 32 through the upper surface, the same number of fixing pieces as the plurality of fixing pieces 14 formed in the body 10 The connection terminal 20 is firmly formed inside the body 10 by the fixing body 30 in which the 34 is formed upward, and the mounting protrusions 36 coupled to the seating grooves 16 are integrally formed at both sides. Connection block for a prefabricated electronic circuit, characterized in that to be mounted so that. The upper and lower coupling holes 12 and 32 and the terminal pins 22 each have a center spacing of 2.54 mm or 5 so as to facilitate connection to an electronic device or insertion of an electric wire 40. Connection block for prefabricated electronic circuit, characterized in that formed to maintain the mm. According to claim 1, The upper coupling hole 12 in proportion to the number of the connection terminal 20 on the bottom surface of the inside of the body 10 so that the three to 10 pairs of the connection terminal 20 of the two pairs can be mounted Assembling a plurality of partition wall (W) integrally around each connection terminal 20 is inserted and fixed independently so that the electric wire 40 or lead can be connected stably connected to the prefabricated electronic circuit .

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