KR20060114642A - Short-circuit connector - Google Patents

Abstract

A short-circuit connector is provided to enhance connection reliability for an inverter substrate by using an existing female connector connected to end parts of two wires and improving a male connector to which the female connector is fitted and connected. A 2-pole pin contact(31) contained in an insulating housing(21) has two contact pin parts(32) and two lead parts(34). The two contact pin parts(32) are horizontally protruded toward an opening part(23) of the insulating housing(21). The two lead parts(34) are formed to correspond to the contact pin parts(32), and are extended from the insulating housing(21) to be soldered to a PCB(Printed Circuit Board). A female connector has a contact(22) of a short-circuit structure in which an intermediate part(33) between the contact pin parts(32) and the lead parts(34) is connected by a connection member(36) by one body. A female connector contains a pair of socket contacts connected to end parts of two wires in the insulating housing(21). The female connector is inserted into the opening part(23), and a pair of the socket contacts and the contact pin parts(32) are fitted and connected.

Description

Short circuit connector {SHORT-CIRCUIT CONNECTOR}

1 is a plan view of a male connector (short connector) having a short circuit structure according to the present invention;

2 is a front view of the male connector;

3 is a side view of the male connector;

4 is a cross-sectional view taken along line 4-4 of FIG.

5 is a cross-sectional view taken along line 5-5 of FIG.

6 is a cross-sectional view taken along line 6-6 of FIG.

7 is a perspective view of a contact of the male connector;

Fig. 8 shows a female connector (socket connector) to which electric wires are connected, (a) is a plan view, and (b) is a side view.

Fig. 9 shows the fitted connection state of the female connector and the male connector, (a) is a longitudinal side view, and (b) is a plan view.

10 is an explanatory diagram showing a circuit configuration of a backlight using an external electrode tube fluorescent lamp (EEFL tube).

Fig. 11 is an explanatory diagram showing a circuit configuration of a backlight using a cold cathode tube fluorescent lamp (CCFL tube).

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

1: cold cathode fluorescent lamp (CCFL tube)

2: electrode

3: inverter board

5: wire

6: female connector

10: external electrode tube fluorescent lamp (EEFL tube)

11: external electrode

12: relay board

13: conductive pattern

14: terminal bracket

15: wires

20: male connector (short connector)

21: insulated housing

22: short circuit contact

23: opening

24: rear side wall

28: shovel hole

29: fit groove

31: pin contact

32: contact pin

33: middle part

34: lead portion

35: soldering part

36: connection member

41: insulated housing

43: socket contacts

46: elastic lock arm

[Document 1] Japanese Patent No. 3254188

[Document 2] Japanese Patent No. 3262726

TECHNICAL FIELD This invention relates to the short circuit connector suitable for mounting in the inverter board which comprises the power supply circuit of the backlight used as a light source of liquid crystal screens, such as a personal computer, for example.

As a backlight used as a light source of a liquid crystal screen such as a personal computer, a plurality of cold cathode fluorescent lamps (CCFL tubes) 1 are arranged as shown in FIG. The CCFL tube 1 has pin-shaped electrodes 2 and 2 at both ends, and is individually connected to one inverter substrate (printed wiring board) 3 constituting a power supply circuit. As an electric connector which electrically connects each CCFL pipe 1 to each inverter board | substrate 3, the connector disclosed by patent document 1, patent document 2, etc. is used, for example. Although the detailed description is abbreviate | omitted, the male connector 4 and two electric wires 5 which the two pin contacts are accommodated in parallel in the insulating housing, the two lead parts are soldered to the inverter board | substrate 3, and are surface-mounted. 5) a female connector 6 in which a pair of socket contacts connected to an end are received in parallel with an insulating housing, and the other ends of the two wires 5 and 5 are pin-shaped electrodes of the CCFL tube 1; Solder (7, 7) to 2, 2, and connect the female connector (6) to the male connector (4) to connect and each CCFL tube (1) is individually connected to one inverter board (3) Is connected.

However, in the above circuit configuration, since one inverter board 3 is used for one CCFL tube 1 and a pair of male connectors 4 and female connectors 6, many inverter boards as a whole are used. (3) and a large number of male connectors 4 and female connectors 6 are required, resulting in high cost. In addition, since the wires 5 and 5 are often soldered to the pin-shaped electrodes 2 and 2 of each CCFL tube 1, there is a problem that time is required for the soldering operation.

Recently, as this kind of backlight, an external electrode fluorescent lamp (EEFL tube) 10 as shown in FIG. 10 has been used instead of the conventional CCFL tube 1. The EEFL tube 10 has a structure in which cap-shaped external electrodes 11 and 11 are coated at both ends of an elongated glass tube encapsulated with Ne gas and Ar gas, and FIG. 10 uses the EEFL tube 10. The example which comprised the backlight power supply circuit is shown.

In the circuit configuration using the EEFL tube 10, the connection between each EEFL tube 10 becomes a parallel circuit, and even when the backlight is a plurality of EEFL tubes 10 arranged, only two inverter substrates 3 are provided. This reduces cost. The external electrodes 11 and 11 of each EEFL tube 10 are detachably fitted to the terminal fittings 14 and 14 electrically connected in parallel with the conductive patterns 13 and 13 of the relay boards 12 and 12. It is connected and put. In addition, two electric wires 15 and 15 are electrically connected to the conductive patterns 13 and 13 through soldering or terminals. Such a circuit configuration has many advantages, such as increased assembly workability and cost reduction, and facilitates replacement of the EEFL tube 10.

In the above circuit configuration, the two electric wires 15 and 15 connected in parallel to the electrodes 11 and 11 of the respective EEFL pipes 10 are individually connected to the inverter boards 3 and 3, respectively. Substantially, one electric wire 15 may be connected to the inverter board | substrate 3 using an electrical connector of one pole. However, when one electric wire 15 is connected to the inverter board 3 by using an electrical connector of one pole, when a contact failure or a wire breakage occurs in the connector, the backlight suddenly causes a malfunction, which is problematic in terms of reliability. There is. Therefore, as shown in Fig. 10, the above-described operation is performed by connecting two electric wires 15 and 15 connected in parallel to the electrodes 11 and 11 of each EEFL tube 10 to each inverter substrate 3, respectively. Reliability can be improved by preventing defects.

[Patent Document 1] Japanese Patent No. 3254188

[Patent Document 2] Japanese Patent No. 3262726

An object of the present invention is to provide a connector suitable for connecting two electric wires 15 and 15 in the circuit configuration shown in FIG. 10 to the inverter board 3. Specifically, the female connector connected to the ends of the two electric wires 15 and 15 has two electric wires 5 in the circuit configuration using the conventional cold cathode fluorescent lamp (CCFL tube) 1 shown in FIG. 5) A short circuit having improved connection reliability to the inverter board 3 by using the existing female connector 6 connected to the end as it is, and improving the male connector 4 to which the female connector 6 is fitted. Provide a connector.

In order to achieve the above object, the present invention provides a two-pole pin contact accommodated in an insulating housing, provided with two contact pin portions protruding substantially parallel toward the opening of the housing, and corresponding to the both contact pin portions, the housing A male connector having two lead portions extending from and soldered to a printed wiring board and having a short-circuit contact in which an intermediate portion of the contact pin portion and the lead portion is integrally connected by a connecting member, wherein the two wires The female connector which accommodated the pair of socket contacts connected to the edge part in the insulated housing is inserted into the said opening part, and the said pair of socket contacts and the said both contact pin part fit-connect, It is a short circuit connector characterized by the above-mentioned.

The both lead portions are bent laterally outward from each other, and the soldered portions are disposed at both corners of the rear end portion of the bottom of the housing.

It is preferable that the reinforcing tabs are provided at both corners of the front end of the bottom of the housing.

In addition, the rear side wall of the housing is provided with an insertion hole through which the two contact pins penetrate, and a fitting groove in which the connecting member is fitted and held, and a short circuit structure in which two pin contacts are integrally formed through the connecting member. The contact is assembled to the housing in a stable posture.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

1 to 3 show a male connector (short connector) 20 having a short circuit structure according to the present invention. The male connector 20 is composed of an insulating housing 21 having a flat rectangular tube shape and a contact 22 having a short-circuit structure arranged to be accommodated in the insulating housing 21.

The insulating housing 21 has an opening 23 at its front end as shown in FIGS. 4 and 6, and the partition 25 protrudes from the central portion of the rear side wall 24 toward the opening 23. The partition wall 25 is disposed in the middle of the contact pin portions 32 and 32 of the two pin contacts 31 and 31 which will be described later, and extends longer than the tip portions of both the contact pins 32 and 32. have. In addition, locking grooves 27 and 27 are provided on the inner surfaces of both side walls 26 and 26 adjacent to the rear side wall 24 to engage the locking projection members 45 and 45 of the female connector 6 described later. . The rear side wall 24 also has a fitting groove in which the insertion holes 28 and 28 through which both the contact pins 32 and 32 pass, and the connection member 36 of the contact 22 to be described later are fitted and held. 29 is provided, and both the insertion holes 28 and 28 communicate with both end portions of the fitting groove 29. In addition, locking projections 30 and 30 are provided on both sides of the upper surface of the front end of the housing 21 to latch and secure the insulating housing 41 of the female connector 6 described later.

The contact 22 is made by punching and bending a conductive metal thin plate such as a brass plate, and has a structure in which two-pole pin contacts 31 and 31 are integrally formed as shown in FIG. Each pin contact 31 includes a contact pin 32, an intermediate portion 33 continuously provided at the proximal end of the contact pin 32, a lead portion 34 extending rearward from the intermediate portion 33; And a soldered portion 35 formed at an end of the lead portion 34, and the intermediate portions 33 of both pin contacts 31 and 31 are integrally connected by the connecting member 36 to form a short circuit structure. The contact 22 was used. The lead part 34 is bent and extended laterally and is formed in the form which the soldering part 35 protruded back at the edge part.

The contact 22 of this structure is assembled and attached from the rear part of the insulating housing 21, and inserts both contact pins 32 and 32 into the insertion holes 28 and 28 of the rear side wall 24, and the housing 21 The middle portions 33 and 33 and the connecting member 36 are fitted into the fitting groove 29 to be held in parallel with each other. By inserting the projections 37 and 37 protruding to the outer side of the housing 21 into the housing 21, the contact 22 is fixed to the housing 21 to complete the male connector (short connector) 20 having a short circuit structure. The leads 34, 34 of the male connector 20 extend from the rear of the housing 21, and the soldered portions 35, 35 of the housing 21 are located near both corners of the rear end of the bottom of the housing 21. It is located on the same plane as the bottom surface. Further, reinforcing tabs (reinforcement brackets) 38 and 38 are inserted into both side walls of the front end portion of the housing 21, and are arranged on substantially the same plane as the bottom surface of the housing.

The male connector 20 having the above-described short circuit structure has both solder portions 35 and 35 and both reinforcement of both pin contacts 31 and 31 on two inverter boards 3 and 3 as shown in FIG. The tabs 38 and 38 are soldered and surface mounted.

On the other hand, the female connector 6 fitted to the male connector 20 is the same as the conventional one as described above, and detailed description thereof is omitted, but as shown in FIG. A pair of tubular bodies 42 and 42 is formed in a bifurcated shape in the first half, and is connected to the ends of the electric wire 5 and the auxiliary electric wire 9 shown in FIG. A pair of socket contacts 43 and 43 are individually isolated and accommodated, and an opening through which the contact pin 32 of the pin contact 31 is inserted into the front end of each cylindrical body 42 and 42 ( 44 and 44 are provided. In addition, locking projection members 45 and 45 engaged with the locking grooves 27 and 27 provided inside the housing 21 of the male connector 20 are provided on the outer surfaces of the front ends of both cylindrical bodies 42 and 42. It is. An elastic lock arm 46 extending from the rear end toward the front end is provided on the upper surface of the insulating housing 41. The lock arm 46 is fixedly attached to the mounting base portion 47 having the rear end protruding from the upper surface of the rear end of the housing 41, and has a constant gap between the upper surface of the housing 41 (the housing of the male connector 20 ( A gap much larger than the thickness of the upper wall 21) is provided and extends to the front end side. The lock arm 46 is configured to be elastically deformable in the lateral direction by providing two cutout holes 48 and 48 extending in the longitudinal direction, and the male connector 20 is provided on both outer surfaces of the lock arm 46. Engagement hooks 49 and 49 are engaged to engage the engagement protrusions 30 and 30 protruding from both ends of the front end of the housing 21 of the c).

In the circuit configuration shown in Fig. 10, the housing 41 of the female connector (socket connector) 6 whose ends of the two electric wires 15 and 15 are connected to the socket contacts 43 and 43 is connected to the inverter board ( If the lock arm 46 is inserted along the upper surface of the housing 21 while being inserted from the opening 23 of the housing 21 of the male connector 20 surface-mounted in 3), FIG. As shown in Fig. 2), the contact pin portions 32 and 32 of the pin contacts 31 and 31 are electrically connected to each other by being fitted to the socket contacts 43 and 43, and each of the EEFL tubes 10 has two wires 15, 15 is electrically connected to the inverter board 3 via the female connector 6 and the male connector 20. On the other hand, when both locking hooks 49 and 49 of the lock arm 46 contact both locking protrusions 30 and 30 of the housing 21 at the time of the fitting connection, the elastic lock arm 46 moves inward in the lateral direction. Elastically deformed so that both locking hooks 49 and 49 ride over the locking protrusions 30 and 30. Then, the female connector 49 and 49 having passed over the locking protrusions 30 and 30 are held by both locking protrusions 30 and 30 by the elastic restoring force of the lock arm 46 so that the female connector has a click feeling. It can be seen that (6) and the male connector 20 are connected in a fitted state correctly (see Fig. 9B).

In the above fitting connection, the two wires 15 and 15 connected to the external electrodes 11 and 11 of each EEFL tube 10 are contacted with the male connector 20 mounted on the inverter board 3. Since it is short-circuited to 22, even if there exists a possibility that the one wire 15 may contact with a connector, a wire break may occur, etc., it will be supplemented by the other wire 15, and a malfunction will be prevented. Can be.

As described above, since the short-circuit connector of the present invention has a short-circuit structure in which two-pole pin contacts are integrally connected by a connecting member, poor contact with a socket contact that is fitted and connected to one pin contact, Even if the electric wire connected to the said socket contact cuts, operation | movement defect can be prevented by the socket contact and electric wire which fit and connected to the other pin contact. Furthermore, compared with the case where the lead part of each said pin contact is short-circuited with a printed wiring board, there are no problems, such as a load to a pattern, a pattern break, etc., and it is excellent also in the point of reliability.

In addition, since the contacts themselves having two-pole pin contacts are integrally structured, the soldered portions of the respective pin contact lead portions can be easily disposed on the same surface, so that stable soldering is possible, and the workability is excellent and the assembly to the insulating housing is performed in one stroke only. Therefore, the cost can be reduced.

In addition, the short circuit connector of the present invention and the existing female connector 6 are formed by arranging an external electrode fluorescent lamp (EEFL tube) 10 as described above, and a connection between the inverter board constituting the power supply circuit. In this case, the number of uses of the inverter board and the connector can be reduced, and the use of the existing female connector 6 can reduce the cost, and significantly increase the assembly workability and the cost.

Claims (6)

Two-pole pin contacts housed in an insulated housing are provided with two contact pin portions projecting substantially in parallel toward the opening of the housing, and two contact pin portions corresponding to both contact pin portions and extending from the housing and soldered to the printed wiring board. It is a male connector which has a lead part and has the contact of the short circuit structure in which the intermediate part of the said contact pin part and the said lead part is integrally connected by the connection member, The female connector which accommodated the pair of socket contacts connected to the two wire ends in the insulated housing is inserted into the said opening, and the said pair of socket contacts and the said both contact pin part fit-fit and connect, The short-circuit connector characterized by the above-mentioned. . The short-circuit connector according to claim 1, wherein the both lead portions are bent laterally outward from each other, and the soldered portions thereof are disposed at both corners of the rear end portion of the bottom of the housing. The shorting connector according to claim 1 or 2, wherein reinforcing tabs are provided at both corners of the front end of the bottom of the housing. The short-circuit connector according to claim 1, wherein an insertion hole through which both contact pins penetrate, and a fitting groove into which the connecting member is fitted are held in the rear side wall of the housing. The short circuit connector of Claim 2 provided with the insertion hole which the said both contact pin part penetrates in the rear side wall of the said housing, and the fitting groove which the connection member fits and is hold | maintained. The short circuit connector of Claim 3 provided with the insertion hole which the said both contact pin part penetrates in the back side wall of the said housing, and the fitting groove which the said connection member fits and is hold | maintained.

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