JPH09129326A - Bipolar connector - Google Patents

Abstract

(57) An object of the present invention is to provide a bipolar connector which has a small number of parts, is excellent in assembling property, and does not cause a crack or the like in a soldered portion with a circuit pattern. SOLUTION: A PCB is provided on a side surface of a housing 2 at predetermined intervals.
5a and 5b are arranged to face each other, and PCBs 5a and 5b are arranged.
The jumper terminal 4 for connecting the circuit patterns 13a and 13b formed in 1 is inserted and fixed. Spring portions 22a and 22b are provided at positions close to the PCBs 5a and 5b of the jumper terminal 4, and a fixing portion 24 that is fixed to the housing 2 is provided at an intermediate portion of the jumper terminal 4. Therefore, displacement of the jumper terminal 4 with respect to the housing 2 is prevented, and external forces such as vibrations acting on the PCBs 5a and 5b are absorbed by the spring portions 22a and 22b, so that the PCBs are
It is possible to prevent cracks or the like from being generated in the soldered portions 14a, 14b of the circuit patterns 13a, 13b on 5a, 5b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bipolar connector which is mounted on a plurality of PCBs (printed wiring boards) for power supply and signal transfer, and more particularly between circuit patterns formed on a plurality of PCBs by mounting the PCBs. A bipolar connector configured to be connected by a jumper terminal.

[0002]

2. Description of the Related Art Today's automobiles are equipped with various electronic devices including a CPU, and as a matter of course, many PCBs are used in the electronic devices. The wiring between the PCB and the wire harness is detachably connected by a connector in consideration of workability during assembly and maintenance.

An example of a conventional bipolar connector will be described with reference to FIGS. The bipolar connector 31 includes a box-shaped housing 32 and an L-shaped connector fixed to the housing 32.
It is provided with a letter-shaped connector terminal 33 and a jumper wire 35 for connecting a circuit pattern (not shown) of PCBs 34a and 34b fixed on the opposite side surfaces of the housing 32. When assembling the PCBs 34a and 34b into the housing 2, the end portions of the connector terminals 33 are inserted through the insertion holes provided in the PCBs 34a and 34b, and the fixing portions 36a and 36b provided on both side surfaces of the housing 2 are fixed with screws 37a and 37b. Secure with screws. The jumper wire 35 is connected to the PCB 34a,
The circuit patterns formed on 34b are connected to each other, and for example, the signal on the specific circuit pattern formed on the PCB 34a is transmitted to the specific circuit pattern formed on the PCB 34b.

The jumper wire 35 shown in FIG. 6 is a separate component from the housing 2, and the connection position differs depending on the preset circuit pattern formation position. For example, the position connected by the jumper wire 35 is
8 corresponds to the connection position between the connector terminal 33 and the circuit pattern, and when signals are exchanged with the mating connector.
A jumper terminal 38 having one end fixed to the housing 32 is used as shown in FIG. The mating connector (not shown) is fitted into the concave fitting portion 39 shown in FIG. 6, and the female connector terminal 40 provided on the mating connector is projected into the fitting portion 39. Connected to.

[0005]

However, the bipolar connector 31 having the above-mentioned configuration is a separate component for connecting the circuit patterns of the PCBs 34a and 34b, and is a jumper wire 35.
is required. Moreover, the housing 32 and the PCB 34
In addition to the work of fixing a and 34b, the work of connecting the jumper wire 35 is necessary, which causes a problem of increasing the number of work steps.
Further, since the PCBs 34a and 34b are plate-shaped, there is a problem that the end portion not fixed to the housing 32 is easily vibrated or flexibly deformed. That is, when vibration or flexural deformation occurs, cracks may occur in the connector terminal 33 or the soldered portion of the jumper wire 35 and the circuit pattern, or stress may occur in the connector terminal 33. It is an object of the present invention to provide a bipolar connector which has a small number of parts, is excellent in assembling, and does not cause cracks or the like in a soldered portion with a circuit pattern.

[0006]

The above object of the present invention is achieved by a bipolar connector constructed as shown in the following items 1) to 3). 1) A plurality of printed wiring boards are fixed to opposite side surfaces of a housing to which connector terminals are fixed, and one end of the connector terminals is connected to a circuit pattern formed on the printed wiring board to enable signal transfer. ,
In a bipolar connector that enables signal transmission between the printed wiring boards by connecting a jumper terminal between the circuit patterns formed on the printed wiring board,
A spring portion is provided at a position of the jumper terminal close to the printed wiring board. 2) In the bipolar connector described in 1) above, a fixing portion for fixing the jumper terminal to the housing is provided at an intermediate portion of the jumper terminal. 3) In the bipolar connector according to 2), the fixing portion constitutes a part of a connector having a jumper function.

According to the bipolar connector having the above structure, the jumper terminal is inserted into the printed wiring board (PCB) and soldered to the circuit pattern formed on the PCB. Further, since the jumper terminal is provided with the spring portion, even if an external force such as vibration is applied to the PCB, it can be absorbed by the spring portion, so that a crack or the like does not occur in the soldered portion of the circuit pattern. Further, since the fixing portion for fixing the jumper terminal to the housing is provided at the intermediate portion of the jumper terminal, the jumper terminal is not displaced with respect to the PCB, and the connecting work between the jumper terminal and the PCB is performed. It can be done easily. Further, when the fixing portion constitutes a part of the connector having a jumper function, the circuit pattern is connected all at once together with the work of assembling the PCB and the housing, and the work of assembling is significantly improved.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a bipolar connector to which the present invention is applied will be described below in detail with reference to FIGS. FIG. 1 is an enlarged cross-sectional view showing a main part structure of a bipolar connector, FIG. 2 is a front view showing a configuration of the bipolar connector, FIG. 3 is a sectional view showing a configuration of the bipolar connector, and FIG. 4 is a side view showing a configuration of the bipolar connector. 5 is a perspective view showing the fitting of the bipolar connector and the mating connector.

As shown in FIG. 1, a bipolar connector (hereinafter simply referred to as a connector) 1 according to the present embodiment has a housing 2 in which a synthetic resin is integrally molded in a box shape, and an L fixed to the housing 2. Character-shaped connector terminal 3,
Jumper terminal 4 with a T-shaped three-pole structure
Etc. are provided. This connector 1 electrically connects a connector terminal 3 to a circuit pattern formed on printed wiring boards (hereinafter abbreviated as PCB) 5a and 5b attached to the upper and lower side surfaces of a housing 2, and a PCB 5a by a jumper terminal 4. , 5b, the circuit patterns 13a and 13b can be connected so that signals can be transmitted.

As shown in FIGS. 2 to 5, the housing 2 is integrally molded of synthetic resin and is formed in a box shape as a whole. A connector terminal 3 and a jumper terminal 4 are fixed to the housing 2, and one end of the connector terminal 3 projects into the fitting portion 11 so that it can be connected to the mating connector 6 shown in FIG. It should be noted that the fitting portion 11 is formed in a concave shape as is clear from FIG. 3 and FIG.
The mating connector 6 is inserted into the connector 1.
The other end of the connector terminal 3 protrudes from the rear surface side of the housing 2 and is branched in the vertical direction in the figure to form PCBs 5a and 5b.
Is electrically connected to the circuit pattern so that signals can be transmitted and received. As shown in FIG. 2, a protruding fixing portion 12a for fixing the PCB 5a with the screw 7a is formed on one side of both side surfaces of the housing 2, and the PCB 5b is fixed with the screw 7b on the other side. The protruding fixing portion 12b is formed.

As shown in FIG. 1, the jumper terminal 4
Is a T-shaped material made of a conductive material such as a metal rod. The jumper terminal 4 includes a rod-shaped jumper portion 21, spring portions 22a and 22b provided on the jumper portion 21, terminal portions 23a and 23b provided at the tips from the spring portions 22a and 22b, and a housing 2. The fixed portion 24 is fixed in a state of being thrust into the back surface portion 15 which is configured. Spring portions 22a, 22b
The dimension of the outer edge of is the distance L between the inner surfaces of the PCBs 5a and 5b.
The lengths of the terminal portions 23a and 23b are set so that the PCBs 5a and 5b and the circuit patterns 13a and 13b can be inserted and soldering 14a and 14b can be performed. The fixed portion 24 is the jumper terminal 4
It is for holding the whole in a desired position, and the end portion does not project into the fitting portion 11 as shown in FIGS. 1 and 2.

Next, the state of fixing the connector terminal 3 and the jumper terminal 4 to the housing 2 will be described.
As shown in FIG. 2, the connector terminals 3 are collectively fixed as one group, and the jumper terminals 4 are collectively fixed at the left side. Since the connector terminal 3 is fixed so that one end thereof projects into the fitting portion 11, the fitting portion 1
The terminal projects in a state in which the terminal is biased to one side.
Further, as shown in FIG. 1, the jumper terminal 4 is fixed so that the fixing portion 24 does not project into the fitting portion 11, so that the terminal does not project in the case of the present embodiment as shown in FIG. The part appears.

Next, the assembling of the housing 2 and the PCBs 5a and 5b will be described. First, the end portion of the connector terminal 3 is inserted into the insertion hole (not shown) for the connector terminal 3 formed in the PCBs 5a and 5b, and the jumper terminal 4 is inserted.
The terminal portions 23a and 23b of the jumper terminal 4 are inserted into the circuit pattern 13a for use. Then PCB5
a and 5b are fixed to the fixing portions 12a and 12b by screws 7a and 7b. As a result, as shown in FIGS. 2 to 5, the PCB is held with the housing 2 sandwiched in the vertical direction in the drawings.
5a and 5b are fixed, the connector terminal 3 and the circuit pattern, the jumper terminal 4 and the circuit pattern 13
a and 13b are soldered.

Thus, the housing 2 and the PCBs 5a, 5
In the state where the connector terminals 3b and 3b are assembled, the connector terminals 3 appear in two rows on the PCBs 5a and 5b on the back side of the position where the connector terminals 3 are fixed, as shown in FIGS.
Further, on the back side of the position where the jumper terminals 4 are fixed, the jumper terminals 4 appear in a row on the PCBs 5a and 5b.

What should be noted in this assembled state is that since the zipper terminal 4 is provided with the spring portions 22a and 22b, the connector terminal 3 and the jumper terminal 4 are provided.
When the PCB is inserted into the PCBs 5a, 5b, the PCBs 5a, 5b
Positioning is performed in a state where b is hooked on the spring portions 22a and 22b. As a result, the distance between the PCBs 5a and 5b is set to the interval L and fixed. That is, the jumper terminal 4 acts as a spacer, and the jumper terminal 4 penetrates and solders 14a, 1
The inconvenience that cracks and the like occur at the portion 4b is eliminated, and stress is not applied to the jumper terminal 4.

Also, the jumper terminal 4 is fixed to the fixed portion 2.
Since it is fixed to the housing 2 by means of 4, the jumper terminal 4 will not be displaced, and the PCB 5
Along with the assembling work of the a and 5b and the housing 2, the connecting work of the jumper terminal 4 with the PCBs 5a and 5b can be easily performed. Further, when the fixing portion constitutes a part of the connector having the jumper function, the circuit pattern 13a, by assembling the housing and the PCB,
13b is connected all at once, and the assembling work is significantly improved compared to the case where the jumper wires of different parts are used for connection.

The relation with the mating connector 6 will be described. Since the terminal does not project into the fitting portion 11 at the position where the jumper terminal 4 is fixed, the mating connector 6 is provided with a connection terminal to the connector terminal 3. What can be fitted to only a part may be used. That is, assuming that the width at which one end of the connector terminal 3 is exposed as shown in FIG. 5 is W, the width of the mating connector 6 may be adapted to W. Therefore, if the width of the conventional connector is W and the width of the mating connector 6 is also W, the conventional mating connector 6 can be applied to the connector 1 of the present embodiment. That is, although the connector 1 of the present embodiment is provided with the jumper terminal 4, since the mating connector 6 is not connected to the jumper terminal 4, it is necessary to prepare a mating connector 6 of a size matching the illustrated connector 1. Instead, a connector with excellent versatility can be obtained.

[0018]

As described above, in the bipolar connector according to the present invention, the spring portion is provided at the position near the printed wiring board of the jumper terminal. Therefore, when the PCB is assembled to the housing, the jumper terminal acts as a spacer, so that the soldering portion with the circuit pattern formed on the PCB does not have a crack or the like, and is a highly reliable bipolar connector that is resistant to vibration and the like. Can be obtained.

Further, since the fixing portion for fixing the jumper terminal to the housing is provided in the middle portion, the jumper terminal is not displaced with respect to the PCB, and the jumper terminal and the PCB are connected. Work can be performed easily. Further, when the fixing portion constitutes a part of the connector having the jumper function, the circuit pattern is connected all at once together with the work of assembling the PCB and the housing, and the work of assembling is significantly improved. Therefore, it is possible to reduce the number of work steps, and it is not necessary to prepare a jumper wire as a separate component.
The number of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing an embodiment of a bipolar connector of the present invention.

FIG. 2 is a side view showing the configuration of the bipolar connector in FIG.

FIG. 3 is a cross-sectional view of a main part showing the configuration of the bipolar connector in FIG.

FIG. 4 is another side view showing the configuration of the bipolar corta in FIG.

5 is a perspective view showing the relationship between the bipolar connector and the mating connector in FIG. 1. FIG.

FIG. 6 is a cross-sectional view showing a configuration of a conventional bipolar connector.

7 is a front view showing the configuration of the bipolar connector in FIG.

8 is a side view showing the configuration of the bipolar connector in FIG.

9 is a bottom view showing the configuration of the bipolar connector in FIG.

[Explanation of symbols]

 1 Bipolar Connector 2 Housing 3 Connector Terminal 4 Jumper Terminal 5a, 5b PCB 6 Mating Connector 11 Fitting Part 13a, 13b Circuit Pattern 21a, 21b Jumper Part 22a, 22b Spring Part 23a, 23b Terminal Part 24a, 24b Fixed Part

Claims (3)

[Claims] 1. A plurality of printed wiring boards are fixed to opposite side surfaces of a housing to which connector terminals are fixed, and one end of the connector terminals is connected to a circuit pattern formed on the printed wiring board to enable signal exchange. And a jumper terminal connected between the circuit patterns formed on the printed wiring board to enable signal transmission between the printed wiring boards, the jumper terminal being close to the printed wiring board. A bipolar connector characterized in that a spring portion is provided at a position. 2. The bipolar connector according to claim 1, wherein a fixing portion for fixing the jumper terminal to the housing is provided at an intermediate portion of the jumper terminal. 3. The fixing part constitutes a part of a connector having a jumper function.
Bipolar connector described.