KR100537999B1 - A idc type terminal protector - Google Patents

Abstract

The present invention discloses an IDC (Interconnect Displacement Connection) type terminal protector.

The present invention is a case; A pair of trunk line terminal pieces including a terminal connection portion and a discharge tube connection portion to be coupled to the trunk line side terminal insertion portion and the discharge tube insertion groove of the case; A pair of internal terminal pieces including a terminal connection portion and a first PTC element connection portion so as to be coupled to the internal terminal insertion portion and the PTC element coupling portion of the case; A pair of connecting pieces including a second PTC element connecting portion so as to be electrically connected to one end of the pair of trunk line terminal pieces so as to face the first PTC element connecting portion; A grounding piece having an electrode connection part electrically connected to any other electrode of the discharge tube, the ground piece having a ground part to be inserted into the ground piece coupling part of the case; Discharge tube; A PTC element; A cover for protecting them.

According to the present invention, not only can the overall volume of the protector be reduced by changing the coupling structure between the components inside the IDC terminal protector, but the assembly structure can be simplified to improve the assembly and production efficiency of the protector and to improve safety. Can be.

Description

IDC type terminal protector {A IDC TYPE TERMINAL PROTECTOR}

The present invention relates to an IDC (Interconnect Displacement Connection) type of terminal protection base, and more particularly, to minimize the space between the terminals can be designed inside the protector, IDC type terminal protector that can be cut test.

The terminal protection device is installed in front of the terminal box to prevent overvoltage or overcurrent from entering the terminal box in case of overvoltage or overcurrent caused by lightning or the like on the track.

Such terminal protection device is usually composed of terminal protection base and protector. Currently, the protection base installed on the line is mainly using a plurality of screw coupling or lapping methods, and copper wire cable is also used for connection between internal contacts. have.

Such a method has problems such as connection loss, noise, performance degradation, etc., and considering the upcoming high speed multimedia service, it is not satisfactory due to aging of wiring.

In this environment, terminal protection device of IDP type 4P (Pin) unit or 10P (Pin) unit has been developed for multimedia service.

Figure 1 shows an example of a unit module developed with a conventional modular IDC terminal protection device, Figure 2 is a cross-sectional view showing the internal structure of a conventional IDC terminal protector.

As shown, the conventional IDC type terminal protection device is composed of a protection base 1 and a protector 2.

In the conventional modular IDC terminal protection base, terminals 3a connected to the internal side and terminals 3b connected to the trunk line are arranged on both sides, and each terminal has a tip line T and a ring line R therein, respectively. IDC pins Tt and Tr for electrically connecting the circuit boards. Inserting a cord (hereinafter referred to as a pair wire) having a tip (T) and a ring (R) wire between the IDC pins (Tt, Tr) causes the inner cover of the pair wire to protect the tip wire and the ring wire Stripped by the pins Tt and Tr, the tip wire T and the ring wire R in the pair wire are electrically connected to the IDC pins Tt and Tr of the terminal.

Meanwhile, the conventional modular IDC terminal protection base has four terminal holes 4a and 4b per pin for inserting the terminal 7 of the protector 2 between the extension and the trunk line side terminals 3. It is formed, and one ground terminal hole 5 for inserting the ground terminal 8 of the protector 2 separately is formed per pin.

Each terminal hole 4 has a metal connecting pin 6 electrically connected to the IDC pins of the internal and trunk lines, and a metal connecting pin electrically connected to the ground plate in the ground terminal hole 5. (6) is provided.

Meanwhile, as shown in FIG. 2, the conventional IDC type terminal protector 2 has a pair of trunk line terminals 7a and 7b, internal terminals 7c and 7d, and one ground terminal 8 under the base 10. Is installed. The discharge tube 11 element is provided between the trunk line side connecting pieces 12a and 12b and the station side connecting pieces 12c and 12d connected to a set of trunk line terminals 7a and 7b and the extension terminals 7c and 7d on the base 10. Installed in pairs.

In addition, a PTC element 13 is provided between each extension side connecting piece 12c, 12d. The PTC element 13 is provided with one electrode 14a, 14b on both sides thereof, and is electrically connected to a pair of inner side connection pieces 12c, 12d. The other electrode 15 is provided at the center of the PTC element 13. have. The other electrode 15 is electrically connected to the folded terminal 8 by the ground connecting piece 16.

Reference numeral 17 is a cover of the protector 2.

However, such a conventional IDC terminal protector should have five terminals separately assembled under the base 2, i.e., trunk line side terminals 7a and 7b, internal side terminals 7c and 7d, and ground terminal 8. Therefore, there is a disadvantage in that the volume of the protector is large, and the connection structure between the terminal and the connecting piece is complicated, which has an inefficient disadvantage in production assembly.

In addition, the conventional IDC terminal protector has a disadvantage that the fixing structure of the discharge tube 11 and the PTC element may be unstable and may be separated between the connecting pieces, and the fixing structure is complicated.

In addition, the conventional IDC type terminal protector has a disadvantage that the cut test is impossible.

The present invention is to solve this problem, the object of the present invention is to change the coupling structure between the components inside the IDC terminal protector to reduce the overall volume of the protector as well as simplify the assembly structure and production and assembly of the protector It is to provide an IDC type terminal protector that can improve efficiency and improve safety.

In order to achieve the above object, the present invention provides an IDC (Interconnect Displacement Connection) type protector, comprising: a case having a terminal insertion portion, a discharge tube insertion groove, a PTC element coupling portion, and a ground piece coupling portion;

A pair of trunk line terminal pieces including a terminal connection portion and a discharge tube connection portion to be coupled to the trunk line side terminal insertion portion and the discharge tube insertion groove of the case; A pair of internal terminal pieces including a terminal connection portion and a first PTC element connection portion so as to be coupled to the internal terminal insertion portion and the PTC element coupling portion of the case; A pair of connecting pieces including a second PTC element connecting portion so as to be electrically connected to one end of the pair of trunk line terminal pieces so as to face the first PTC element connecting portion; A grounding piece having an electrode connection part electrically connected to any other electrode of the discharge tube, the ground piece having a ground part to be inserted into the ground piece coupling part of the case; A discharge tube electrically connected to the discharge tube connection portion of the pair of trunk line terminal pieces and the electrode connection portion of the ground piece; A PTC element electrically connected to the first PTC element connection portion of the pair of extension terminal pieces and the second PTC element connection portion of the pair of connection pieces; An IDC type terminal protector including a cover for protecting them is provided.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

3 is a front view showing an IDC terminal protector according to the present invention, Figure 4 is an assembly diagram showing a coupling structure of the IDC terminal protector according to the present invention.

As shown, the IDC (Interconnect Displacement Connection) terminal protector of the present invention is largely a case 20, a pair of trunk line terminal pieces 30, a pair of extension terminal pieces 40, a pair of connecting pieces 50, ground It consists of a piece 60, a discharge tube 70, a PTC element 71 and a cover 72.

First, the case 20 has a structure in which both sides are symmetrical with each other, and the terminal inserting portion 22 capable of coupling the trunk line terminal piece 30, the internal terminal piece 40, and the connecting piece 50 to each surface thereof. And a PTC element coupling part 24 and the like, and a discharge tube inserting groove 23 is provided to penetrate both sides of the case 20 so that the discharge tube 70 can be inserted. In addition, the ground piece coupling portion 25 is provided to penetrate both sides of the case 20 so as to insert the ground piece 60 between the terminal insertion portions 22, and the ground piece coupling portion 25 is It is in communication with the discharge tube insert 23 mentioned above.

According to the present invention, the terminal insertion part 22 has a structure in which the terminal connection part 31 of the pair of trunk line terminal pieces 30 and the terminal connection part 41 of the pair of internal terminal pieces 40 are exposed on both sides. . To this end, the groove portion 22a is concave in the portion where the terminal connecting portions 31 and 41 are in close contact with each other, and a fixing groove 22b in which the ends of the terminal connecting portions 31 and 41 are inserted and fixed is formed.

Further, the discharge tube connecting portion 32 of the trunk line terminal piece 30 and the first PTC element connecting portion 42 of the internal terminal piece 40 are connected to the discharge tube inserting groove 23 and the PTC coupling portion 24 of the case 20. The through groove 22c is provided to be able to enter and position. The through groove 22c extends to the guide groove 22d so that the trunk line terminal piece 30 coupled to the case 20 can be firmly supported without employing a separate fixing means. This allows a simple operation when assembling the protector can increase the efficiency of the assembly work.

Meanwhile, the discharge tube insertion groove 23 is formed to have a structure in which both side surfaces of the case 20 are opened on the trunk line side terminal inserting portion 22 so that the discharge tube 70 is inserted. One electrode of the discharge tube 70 inserted into the discharge tube insertion groove 23 is electrically connected while being elastically connected to the discharge tube connecting portion 32 of the trunk line terminal piece 30, and the other electrode is connected to the ground piece 60. It is electrically connected to the electrode connecting portion 61. That is, the discharge tube connecting portion 32 and the electrode connecting portion 61 face each other on the inner wall surface of the discharge tube inserting groove 23, and the discharge tube 70 is elastically inserted therebetween.

In addition, in order to prevent the discharge tube 70 from being separated from the discharge tube insertion groove 23, the locking projection 23a is formed to protrude from the upper and lower sides of the discharge tube insertion groove.

On the other hand, the PTC element coupling portion 24 is located on the inner side terminal insertion portion 22 and formed on both sides of the case 20, respectively. The first PTC element connecting portion 42 of the pair of extension terminal pieces 40 is positioned in the PTC element coupling portion 24 to be electrically connected to one electrode of the PTC element 71.

On the other hand, the ground piece coupling portion 25 is formed in the terminal insertion portion 22 so that the ground piece 60 can be located inside the terminal insertion portion 22, and the terminal from the ground piece coupling portion 25 A through groove 25a penetrating into the lower portion of the insertion part 22 is formed to allow the protection-based ground plate to enter through the through groove 25a.

In addition, the separation prevention wall 25b is formed on one side of the ground piece engaging portion 25 so that the ground piece 60 is not detached from the opposite side when the ground piece 60 is pushed in any one direction.

In addition, the vertical flow prevention jaw 25c which is unevenly coupled with the vertical flow preventing protrusion 63 protruding at one end of the ground piece 60 is formed to prevent the ground piece 60 from flowing in the vertical direction. do.

On the other hand, the upper part of the case 20 is formed with a cutting test insert for the cutting test, a guide 26 is formed in the vertical direction between the groove portion 22a of the terminal insertion portion 22. That is, when the protector is inserted into the protection base, the trunk line side and the extension side are prevented from being interchanged. In addition, one end of the case 20 in contact with the upper surface of the protection base is provided with a flow preventing projection 27 in the horizontal direction. The flow preventing protrusion 27 is unevenly coupled with the groove formed in the protection base to serve to prevent the protector from swinging from side to side in the state coupled to the protection base.

5 is a perspective view illustrating a trunk line terminal piece according to an exemplary embodiment of the present invention, wherein the terminal connection portion 31 and the discharge tube connection portion (ie, the terminal line portion 31 and the discharge tube insertion groove 23) of the case 20 may be coupled to each other. 32) is integrally formed.

As mentioned above, the terminal portion 31 of the trunk line terminal piece 30 is provided with a fixing portion 31a that is bent to fit into the fixing groove 22b.

In addition, the upper part of the discharge line connecting portion 32 of the trunk line terminal piece 30 is provided with a cutting test connecting portion 33 for the cutting test.

6 is a perspective view illustrating the extension terminal piece and the connection piece according to the present invention, and the terminal connection part 41 and the terminal connection part 41 so as to be coupled to the extension terminal insertion part 22 and the PTC element coupling part 24 of the case 20. The 1st PTC element connection part 42 is comprised integrally.

The first PTC element connecting portion 42 is provided with a plurality of protrusions 42a to make electrical contact with one electrode of the PTC element 71, and a plurality of fixings to hold the outer circumference of the PTC element 71. The jaw 42b is provided.

As mentioned above, the terminal portion 41 end of the internal terminal piece 40 is provided with a fixing portion 41a bent to fit in the fixing groove 22b.

On the other hand, the connecting piece 50 faces the internal terminal piece 40 side chipping test connecting part 52 which is electrically connected to the chipping test connecting part 33 of the trunk line terminal piece 30, and the first PTC element connecting part 42. The 2nd PTC element connection part 51 is provided integrally so that it may be carried out. As described above, the PCT element 71 inserted between the first PTC element connecting portion 42 and the second PTC element connecting portion 51 generates a resistance when the PTC element 71 generates heat when an overcurrent flows from the trunk line side, thereby increasing the flow of current. By controlling, overcurrent is prevented from flowing to the inner side.

In order to fix the connecting piece 50 to one end of the case 20, fixing parts 53 are formed at the front and end of the connecting piece 50, respectively, and the fixing part is the connecting piece fixing groove formed at one end of the case 20. It is inserted into and fixed to 53a.

Here, the cutting test connection part 33 of the trunk line terminal piece 30 and the cutting test connection part 52 of the connection piece 50 are kept in close contact with each other in the lower part of the cutting test insertion hole 21 of the case 20. When the cutting tool is inserted through the insertion hole 21 for the cutting test, the cutting test connection part 33 of the trunk line terminal piece 30 and the cutting test connection part 52 of the connecting piece 50 are separated from each other.

7 is a perspective view illustrating a ground piece and a discharge tube according to the present invention, wherein the ground piece 60 includes an electrode connecting portion 61 electrically connected to any other electrode of the discharge tube 70, and a ground piece of the case 20. The ground portion 62 inserted into the coupling portion 25 is integrally formed.

The grounding portion 62 is formed with a bent portion 62a in the middle of the grounding portion 62 so as to be smoothly grounded with a protective grounding plate inserted into the through groove 25a. After being biased to one side, the end of the ground portion 62 is bent in the opposite direction. Therefore, the ground plate is inserted through the through groove 25a and is elastically grounded while moving away from each other without colliding with the ground portion 62.

As mentioned above, the discharge tube 70 has one electrode electrically connected to the discharge tube connection portion 32 of the trunk line terminal piece 30, and the other electrode is electrically connected to the electrode connection portion 61 of the ground piece 60. Is connected to perform the discharge function through the ground piece 70 when the overvoltage occurs.

On the other hand, it is preferable that a separate coupling piece 64 is added for smooth connection and assembly of the discharge tube 70 and the ground piece 60. The coupling piece 64 is provided on the elastic coupling part 64a for elastically holding the electrode connection part 61 of the discharge tube 70 and the ground piece 60 and the locking projection 23a of the case 20. It consists of a support 64b extended to be supported.

IDC type terminal protector according to the present invention constituting such a structure by using the both sides of the case 20 is coupled to the component parts, in particular, can achieve a structure in which all five terminals required for the terminal insertion portion 22 is combined The overall volume can be reduced to about 1/4.

In addition, the IDC terminal protector according to the present invention has a simplified coupling method between the constituent members as compared to the conventional IDC terminal protector, it is possible to improve the assembly and production efficiency because most of the assembly method.

In addition, since the fixing structure of the discharge tube 11 and the PTC element 71 is stable, there is no fear of detachment, and in particular, the ground piece 60 is formed inside the protector, thereby improving safety, such as no electric shock. You can.

In addition, the IDC terminal protector according to the present invention is capable of a chip test that was not possible with the conventional IDC terminal protector.

Thus, by changing the coupling structure between the components inside the IDC terminal protector according to the present invention can not only reduce the overall volume of the protector, but also simplify the assembly structure to improve the assembly and production efficiency of the protector, and improve the safety Can be improved.

1 is an exploded view showing an example of a unit module developed with a conventional IDC terminal protection device,

2 is a front view showing a conventional IDC terminal protector,

3 is an overall perspective view showing an IDC terminal protector according to the present invention;

4 is a front view showing the cover of the IDC type terminal protector according to the present invention in an open state;

5 is a front view showing a case of an IDC terminal protector according to the present invention;

6 is a perspective view illustrating a trunk line terminal piece according to the present invention;

7 is a perspective view showing an extension terminal piece and a connection piece according to the present invention;

8 is a perspective view showing a ground piece and a discharge tube according to the present invention;

<Description of the symbols for the main parts of the drawings>

20; Case, 21; Insert for insert test

22; Terminal insertion section 23; Discharge tube insertion groove,

24; PTC element coupling part, 25; Ground piece coupling,

26; Guide 30; A pair of CO line terminals,

31; Terminal connection part 32; Discharge tube connection,

33; Cut test connection 40; A pair of extension terminal pieces,

41; Terminal connections 42; First PTC element connection

50; A pair of connecting pieces, 51; Second PTC device connection,

52; Powder test connection 60; Ground piece

70; Discharge tube 71; PTC device

72; cover

Claims (31)

In the IDC (Interconnect Displacement Connection) type protector, A case including a terminal insertion portion, a discharge tube insertion groove, a PTC element coupling portion, and a ground piece coupling portion; A pair of trunk line terminal pieces having a terminal connection portion and a discharge tube connection portion to be coupled to the trunk line side terminal insertion portion and the discharge tube insertion groove of the case; A pair of extension terminal pieces including a terminal connection portion and a first PTC element connection portion to be coupled to the extension side terminal insertion portion and the PTC element coupling portion of the case; A pair of connecting pieces including a second PTC element connecting portion so as to be electrically connected to one end of the pair of trunk line terminal pieces so as to face the first PTC element connecting portion; A ground piece having an electrode connection part electrically connected to any other electrode of the discharge tube, and a ground piece having a ground part to be inserted into a ground piece coupling part of the case; A discharge tube electrically connected to the discharge tube connection portion of the pair of trunk line terminal pieces and the electrode connection portion of the ground piece; A PTC element electrically connected to the first PTC element connecting portion of the pair of extension terminal pieces and the second PTC element connecting portion of the pair of connecting pieces; An IDC terminal protector comprising a cover for protecting them. The method of claim 1, The case 20 has the terminal inserting portion 22 and the PTC element coupling portion 24 formed on both sides thereof, and the discharge tube inserting groove 23 is formed through the both side surfaces of the case 20. IDC terminal protector. The method of claim 2, IDC type terminal protector, characterized in that the ground piece coupling portion 25 is provided to insert the ground piece (60) between the terminal insertion portion (22). The method of claim 2, IDC terminal protector, characterized in that the terminal insertion portion (22, 41) of the pair of the trunk line and the internal terminal pieces (30, 40) are exposed on both sides of the terminal insertion portion (22). The method of claim 2, IDC terminal protector, characterized in that the groove portion (22a) is formed concave at one end of the terminal insertion portion (22). The method of claim 2, IDC terminal protector, characterized in that the fixing groove (22b) is formed at one end of the terminal inserting portion (22), the end of the terminal connecting portion (31, 41) is inserted and fixed. The method of claim 1, The discharge tube connecting portion 32 of the trunk line terminal piece 30 and the first PTC element connecting portion 42 of the internal terminal piece 40 form the discharge tube inserting groove 23 and the PTC coupling portion 24 of the case 20. IDC type terminal protector, characterized in that the through groove (22c) is provided so as to be located in the position. The method of claim 7, wherein The through groove (22c) is IDC terminal protector, characterized in that extending to the guide groove (22d) to support the trunk line and the internal terminal pieces (30, 40). The method of claim 2, The discharge tube insertion groove (23) is IDC terminal protector, characterized in that formed on the trunk line-side terminal insertion portion 22 has a structure in which both sides of the case 20 is open. The method of claim 9, One electrode of the discharge tube 70 inserted into the discharge tube insertion groove 23 is electrically connected to the discharge tube connecting portion 32 of the trunk line terminal piece 30 while being electrically connected thereto, and the other electrode is connected to the ground piece ( IDC terminal protector, characterized in that it is electrically connected to the electrode connecting portion (61) of (60). The method of claim 10, IDC terminal protector, characterized in that the engaging projection (23a) is formed to protrude from the discharge tube insertion groove 23, respectively, to prevent the discharge tube 70 is separated from the discharge tube insertion groove (23). The method of claim 1, IDC type terminal protector, characterized in that the through groove 25a penetrating from the ground piece coupling portion 25 to the lower portion of the terminal insertion portion 22. The method of claim 1, IDC type terminal protector, characterized in that the separation prevention wall (25b) is additionally formed on one side of the ground piece coupling portion 25 so that the ground piece (60) is pushed in any one direction so as not to be separated to the opposite side. . The method of claim 1, IDC type terminal protector, characterized in that the upper and lower flow preventing jaw (25c) is formed at one end of the ground piece (60) to prevent the ground piece (60) flow in the vertical direction. The method of claim 1, IDC type terminal protector, characterized in that the upper part of the case 20 is additionally formed for the cutting test insertion port 21 for the cutting test. The method of claim 1, IDC terminal protector, characterized in that the guide (26) is formed in the vertical direction between the groove portion (22a) of the terminal insertion portion 22 to prevent the main line side and the inner line side of the protector is inserted into the interchange. The method of claim 1, The trunk line terminal piece (30) is an IDC terminal protector, characterized in that the terminal connecting portion (31) and the discharge tube connecting portion (32) are integrally formed. The method of claim 17, Terminal terminal 31 of the trunk line terminal piece 30 is an IDC terminal protector, characterized in that the fixing portion (31a) is bent to be fitted into the fixing groove (22b). The method of claim 1, IDC type terminal protector, characterized in that the upper part of the discharge line connecting portion (32) of the trunk line terminal piece (30) is provided with a cutting test connecting portion (33) for the cutting test. The method of claim 1, The internal terminal piece (40) is an IDC terminal protector, characterized in that the terminal connecting portion (41) and the first PTC element connecting portion (42) are integrally formed. The method of claim 20, The first PTC element connecting portion (42) is IDC terminal protector, characterized in that a plurality of projections (42a) are provided for making electrical contact with one electrode of the PTC element (71). The method of claim 20, The first PTC element connecting portion (42) is IDC terminal protector, characterized in that a plurality of fixing jaw (42b) is provided to hold the outer periphery of the PTC element (71). The method of claim 20, IDC terminal protector, characterized in that the end of the terminal connecting portion (41) of the internal terminal piece (40) is formed by bending the fixing portion (41a) to be fitted into the fixing groove (22b). The method of claim 1, The connecting piece 50 is formed to face the first terminal element connecting part 42 and the internal terminal piece side cutting test connecting part 52 electrically connected to the cutting test connecting part 33 of the trunk line terminal piece 30. And the second PTC element connecting portion (51) is formed integrally. The method of claim 24, IDC terminal protector, characterized in that the fixing portion 53 is formed at each of the front end and the end of the connecting piece 50 is inserted and fixed in the connecting piece fixing groove (53a) formed at one end of the case (20). The method of claim 15 or 24, The cutting test connection part 33 of the trunk line terminal piece 30 and the cutting test connection part 52 of the connection piece 50 are elastically closely connected to the lower part of the cutting test insertion hole 21 of the case 20. Type IDC terminal protector. The method of claim 1, The ground piece 60 includes an electrode connection portion 61 electrically connected to any other electrode of the discharge tube 70, and a ground portion 62 inserted into the ground piece coupling portion 25 of the case 20. IDC type terminal protector, characterized in that formed integrally. The method of claim 27, The ground part 62 is formed with a bent part 62a in the middle of the ground part 62 so that the ground part 62 can be smoothly grounded with a protective ground plate inserted into the through hole 25a. 62) The end of the IDC terminal protector, characterized in that formed by bending in the opposite direction. The method of claim 1, IDC type terminal protector, characterized in that a separate coupling piece (64) is added for smooth connection and assembly of the discharge tube (70) and the ground piece (60). The method of claim 29, The coupling piece 64 is supported by an elastic coupling portion 64a for elastically holding the electrode connecting portion 61 of the discharge tube 70 and the ground piece 60, and a locking step 23a of the case 20. IDC type terminal protector, characterized in that consisting of an extended support (64b). The method of claim 1, IDC type terminal protector, characterized in that the flow preventing projections 27 are provided at one end of the case 20 in contact with the upper surface of the protection base.