JP4565808B2 - Electronic component connector and connection structure thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component connector used in a keyless entry system transmitter for automobiles and houses, and a connection structure thereof.
[0002]
[Prior art]
Although not shown, a keyless entry system transmitter that opens and closes a door or a trunk of an automobile is configured in a palm size, and a button battery that supplies electric output to a circuit board is detachably incorporated. This button battery is generally of a small coin type and is built into the keyless entry system transmitter directly or indirectly through metal fittings, etc., and contacts a plurality of leaf springs fixed to the circuit board by soldering. By doing so, electrical conduction is ensured (see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-60-131753 [0004]
[Problems to be solved by the invention]
As for the button battery of a conventional keyless entry system transmitter, only power supply to the circuit board is emphasized as described above, and the other portions are not particularly considered. Therefore, there is a big problem that the connection to the circuit board cannot be stabilized and the load necessary for the connection cannot be suppressed.
[0005]
The present invention has been made in view of the above, and an object of the present invention is to provide an electronic component connector and a connection structure thereof that can stabilize connection and suppress connection load.
[0006]
[Means for Solving the Problems]
In the present invention, in order to solve the above-mentioned problem , the first electrode is formed on the surface, and the second electrode is formed on the peripheral surface.
An insulating elastic holder that is formed in a substantially bottomed cylindrical shape and houses an electronic component, a first conductive connection terminal that is provided through the elastic holder and contacts the first electrode of the electronic component, and elastic provided through the bottom of the holder, seen including a second conductive connecting terminals in contact with the second electrode of the electronic component,
An insulating interference body is provided at the bottom of the elastic holder so as to contact the second conductive connection terminal and suppress deterioration of the conduction posture .
[0007]
Further, in the present invention, in order to achieve the above-mentioned problem, the electronic component having the first electrode formed on the surface and the second electrode formed on the peripheral surface is electrically connected to the electrical joint. There,
The electronic component is housed in the electronic component connector according to the first aspect, and the first and second conductive connection terminals of the electronic component connector are brought into contact with the electrical joint.
[0008]
Here, the electronic components in the claims include at least a button battery used in a keyless entry system transmitter for automobiles and houses, information communication devices, terminal devices, watches, cameras, calculators, and the like. The elastic holder is formed in a cylindrical shape, an elliptical cylindrical shape, a polygonal cylindrical shape, a similar shape to these, or a combined cylindrical shape, etc. Can be used in a state. In addition, the interference body is formed in, for example, a block shape or a plate body, and a plurality of interference bodies are provided on a part or all of the opposing surface of the second conductive connection terminal. Examples of the method of superimposing the interference body on the second conductive connection terminal include integral molding and adhesion. The electrical joint includes at least various circuit boards such as a printed board and a flexible board.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, an electronic component connector according to the present embodiment includes an elastic holder 10 for a button battery and a negative electrode 2 of the button battery 1. The elastic first conductive connection terminal 20 in contact, the elastic second conductive connection terminal 30 in contact with the positive electrode 3 of the button battery 1, and the second conductive connection terminal 30 are pressed against the positive electrode 3 of the button battery 1, An insulating / elastic interference body 40 that suppresses deterioration of the conduction posture of the exposed portion of the second conductive connection terminal 30 is provided, and the button battery 1 is conductively connected to the circuit board 50.
[0010]
The button battery 1 is made of, for example, a coin-type manganese dioxide lithium battery or the like, and is formed in a thin and round disk shape. The button battery 1 has a flat circular negative electrode 2 formed on the surface thereof so as to protrude through a step, and a peripheral surface is formed on the positive electrode 3. In this embodiment, the negative electrode 2 is used in a downward direction. Orient.
[0011]
The elastic holder 10 is basically formed into a bottomed cylindrical shape using a predetermined material excellent in insulation, flexibility, and elasticity, and the button battery 1 is detachably fitted and accommodated from the opening. The holder 11 is fitted and covered with a substantially inverted U-shaped holder 11. Examples of the predetermined material of the elastic holder 10 include butadiene rubber, styrene butadiene rubber, urethane rubber, silicone rubber, and the like, and particularly, silicone rubber having excellent temperature dependency and insulation is optimal. The hardness of the elastic holder 10 is set in the range of Shore A hardness 20 to 70 ° A, preferably 40 to 60 ° A, from the viewpoints of buffer function, moldability, handling, and the like.
[0012]
The first conductive connection terminal 20 is formed in a substantially block shape from, for example, a conductive elastomer that exhibits a conductive function and a pair of insulating elastomers that sandwich the conductive elastomer, and is integrated with the center of the bottom of the elastic holder 10. The upper and lower ends protrude from the bottom of the elastic holder 10 and are electrically elastically contacted with the negative electrode 2 of the button battery 1. The conductive elastomer is formed by blending a large number of conductive particles with an insulating elastomer.
[0013]
As the insulating elastomer, various elastomers that have fluidity before curing and form a cross-linked structure by being cured (a general term for those having rubber-like elasticity near normal temperature) are preferable. Specific examples include silicone rubber, fluorine rubber, polyurethane rubber, polybutadiene rubber, polyisopropylene rubber, chloroprene rubber, polyester rubber, styrene / butadiene copolymer rubber, and natural rubber.
Moreover, these independent and open cell foams are also included. Among these, silicone rubbers that are excellent in electrical insulation, heat resistance, compression set, workability, etc. are optimal.
[0014]
Examples of the conductive particles include granular or flaky particles whose surfaces are coated with metal. Specific examples include simple metals such as gold, silver, copper, platinum, palladium, nickel, and aluminum, and granular or flaky particles made of these alloys. In addition, thermosetting resins such as phenol resin, epoxy resin, silicone resin, urethane resin, these baked products, carbon, ceramics, silica, etc. Applicable to those covered with.
[0015]
The second conductive connection terminal 30 is formed into a plate piece that can be bent using, for example, the conductive elastomer, and is integrally penetrated and supported on the outer periphery of the bottom of the elastic holder 10. The upper and lower ends of the second conductive connection terminal 30 protrude from the bottom of the elastic holder 10 and are electrically elastically contacted with the positive electrode 3 of the button battery 1 from the lateral direction.
[0016]
The interference body 40 is integrally penetrated and supported near the center of the bottom of the elastic holder 10 using, for example, an insulating elastomer, and is partially overlapped on the opposing inner surface of the second conductive connection terminal 30. While contacting the negative electrode 2 of the battery 1 from below and pressing the second conductive connection terminal 30 against the positive electrode 3 of the button battery 1, the lower end portion 31 of the second conductive connection terminal 30 exposed from the bottom of the elastic holder 10 It functions to suppress the deterioration of the conduction posture, that is, the inclination. The interference body 40 is formed into a substantially block shape or plate shape using, for example, silicone rubber, and has a Shore A hardness of 20 to 70 ° A, preferably a Shore A hardness of 40 to 60 ° A after curing. It is said.
[0017]
The interference body 40 has a length of 1 to 5 mm from the end and a width of 1 to 10 mm. The interference body 40 is located between the button battery 1 and the second conductive connection terminal 30 and has a second conductivity. The connection terminals 30 are overlapped with the lower end surface. The reason why the size of the interference body 40 is set as the range is that if it is less than the range, a suppression effect cannot be expected, and conversely if it exceeds the range, a large load is generated.
[0018]
In the above configuration, when the button battery 1 is conductively connected to the circuit board 50, first, the button battery 1 is stored in the connector for electronic parts with the button battery 1 facing downward, and the button battery 1 and the first and second conductive connection terminals 20. 30 is brought into contact with each other, and the opening of the electronic component connector is fitted and covered with the holder 11 from above, and the exposed lower ends of the first and second conductive connection terminals 20 and 30 are exposed. The button battery 1 can be conductively connected to the circuit board 50 via the first and second conductive connection terminals 20 and 30 by making contact with the plurality of electrodes 51 of the circuit board 50 and then lowering the holder 11. it can.
[0019]
According to the above configuration, by pressing the button battery 1 in the direction of the circuit board, the elastic interference body 40 in contact with the circuit board 50 is compressed and interferes with the second conductive connection terminal 30 in contact with the circuit board 50, Since the pressure that presses the second conductive connection terminal 30 against the electrode 51 is generated, it is possible to extremely effectively prevent the lower end portion 31 of the second conductive connection terminal 30 from falling or tilting outward. . Therefore, there is no gap between the electrode 51 of the circuit board 50 and the lower end portion 31 of the second conductive connection terminal 30, and the connection to the circuit board 50 can be stabilized. Thereby, even if an impact acts on the connector for electronic components, no instantaneous interruption occurs.
[0020]
In addition, since the elastic holder 10 exhibits a vibration absorbing function, a buffer function, and a damping function, even if the keyless entry system transmitter falls from a high place, it is extremely difficult to transmit vibrations and shocks to the electrodes of the button battery 1. Effective suppression can be prevented.
Therefore, the button battery 1, the first and second conductive connection terminals 20 and 30, and the circuit board 50 are not continuously turned on and off, and the possibility of malfunction of the keyless entry system transmitter due to chattering is extremely effective. Can be resolved. Further, since the elastic holder 10 is deformed or compressed during connection to exhibit a sealing function, dust does not enter between the electrodes or the like from the outside of the keyless entry system transmitter to cause a short circuit.
[0021]
Furthermore, since the button battery 1 and the circuit board 50 can be reliably conducted only by press-contacting the first and second conductive connection terminals 20 and 30 integrated with the elastic holder 10, soldering work is required. do not do. Therefore, improvement of assembly property, remarkable smoothing, speeding up, simplification, and facilitation of processing and manufacturing operations can be expected.
[0022]
Next, FIG. 2 shows a second embodiment of the present invention. In this case, the height (thickness) of the interference body 40 is made low and thinly formed integrally with the bottom of the elastic holder 10. The second conductive connection terminal 30 is partially overlapped with the opposing inner surface. The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.
In the present embodiment, the same effect as that of the above embodiment can be expected. Further, by pressing the button battery 1 in the direction of the circuit board, the interference body 40 that is close to and opposed to the circuit board 50 with a gap is provided on the circuit board 50 side. To generate a pressure that presses the second conductive connection terminal 30 against the electrode 51 of the circuit board 50, so that the lower end portion 31 of the second conductive connection terminal 30 falls or tilts outward. Clearly it can be prevented very effectively.
[0023]
Next, FIG. 3 and FIG. 4 show the third and fourth embodiments of the present invention. In this case, the hardness of the elastic holder 10 is lowered and a part of the peripheral wall is laterally arranged. A projecting rectangular projection 12 is integrally formed, and a clearance 13 is defined between the projection 12 and the peripheral edge of the stored button battery 1. The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.
In this embodiment, the same effect as that of the above embodiment can be expected, and the hardness of the elastic holder 10 is lowered and the clearance 13 is formed inside the elastic holder 10, so that only the connection to the circuit board 50 is stabilized. It is clear that the load required for the connection can be remarkably suppressed.
[0024]
Next, FIGS. 5 and 6A to 6C show a fifth embodiment of the present invention. In this case, the interference body 40A has the same size as the second conductive connection terminal 30. FIG. The interference body 40A is formed integrally with the outer periphery of the bottom of the elastic holder 10 so as to be overlapped with the opposing outer surface of the second conductive connection terminal 30.
[0025]
The second conductive connection terminal 30 and the interference body 40A may be in contact with the peripheral edge of the opening of the elastic holder 10 (see FIG. 6A), and a clearance 13 is formed between the peripheral wall of the elastic holder 10. It may be one (see FIG. 6B), or may be opposed to the peripheral edge of the opening of the elastic holder 10 with a gap (see FIG. 6C). The hardness of the interference body 40A is preferably lower than the hardness of the elastic holder 10. Specifically, it is set in the range of 20-50 ° A, more preferably 20-30 ° A. This is because if the hardness of the interference body 40A is lowered, it easily deforms, so that the followability of the button cell 1 to the positive electrode 3 is improved. The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.
[0026]
Also in this embodiment, the same effect as the above embodiment can be expected, and it is obvious that the interference body 40A effectively regulates the inclination of the second conductive connection terminal 30 with respect to the outer direction.
[0027]
Next, FIGS. 7A to 7C show a sixth embodiment of the present invention. In this case, an interference member that contacts the negative electrode 2 of the button cell 1 on the inner surface of the bottom of the elastic holder 10. 40 is bulged, and another interference body 40A is formed on a plate having the same size as the second conductive connection terminal 30, and this interference body 40A is integrally formed on the outer periphery of the bottom of the elastic holder 10 to form a second The conductive connection terminal 30 is attached to the opposite outer surface.
[0028]
The second conductive connection terminal 30 and the interference body 40A may be located near the opening of the elastic holder 10 (see FIG. 7A), and the clearance 13 is formed between the peripheral wall of the elastic holder 10. It may be a thing (refer FIG.7 (b)), or may be located lower than the opening part of the elastic holder 10 (refer FIG.7 (c)). The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.
Also in this embodiment, the same effect as the above embodiment can be expected, and the second conductive connection terminal 30 is sandwiched between the plurality of interference bodies 40 and 40A, and the swing of the second conductive connection terminal 30 is restricted. Therefore, it is obvious that the second conductive connection terminal 30 can be effectively suppressed and prevented from inclining outward or falling.
[0029]
Next, FIGS. 8A to 8C show a seventh embodiment of the present invention. In this case, an interference body 40 in contact with the negative electrode 2 of the button cell 1 is provided at the bottom of the elastic holder 10. Is formed so as to bulge inward and outward (vertical direction), and its lower end surface is aligned with the lower end surface of the second conductive connection terminal 30, and another interference member 40A is a plate piece having the same size as the second conductive connection terminal 30. The interference body 40 </ b> A is integrally formed on the outer periphery of the bottom of the elastic holder 10 so as to be attached to the opposite outer surface of the second conductive connection terminal 30.
[0030]
The second conductive connection terminal 30 and the interference body 40A may be located near the opening of the elastic holder 10 (see FIG. 8A), and the clearance 13 is formed between the peripheral wall of the elastic holder 10. It may be a thing (refer FIG.8 (b)), or you may make it position lower and thinner than the opening of the elastic holder 10 (refer FIG.8 (c)). The other parts are substantially the same as those in the above embodiment, and thus description thereof is omitted.
In this embodiment, the same effect as the above embodiment can be expected, and the contact area of the interference body 40 is enlarged, so that the second conductive connection terminal 30 is inclined outward or falls down. Furthermore, suppression can be effectively prevented.
[0031]
In the above embodiment, the first conductive connection terminal 20 is formed of a conductive elastomer and a pair of insulating elastomers sandwiching the conductive elastomer. However, the present invention is not limited to this. For example, the conductive connection terminal may be formed of an insulating elastomer and a plurality of conductive thin wires embedded in the insulating elastomer. It is also possible to alternately form a plurality of conductive elastomers and insulating elastomers.
[0032]
【Example】
Examples of electronic component connectors according to the present invention will be described below together with comparative examples.
The electronic component connector of the example and the electronic component connector of the comparative example were each prepared, and these were set together with the circuit board on a testing machine shown in FIG. 9 to perform an impact resistance impact test. As the electronic component connector of the example, the electronic component connector in the first embodiment was used. Although not shown, the electronic component connector of the comparative example is a leaf spring type conventional electronic component connector.
[0033]
As shown in the figure, the testing machine is composed of a pendulum installed on the base, an anvil equipped with a buffer, a control device for controlling the motor of the pendulum, and the like. The pendulum includes a rotating arm that swings based on the rotation of a motor, and a specimen fixing base that is attached to the tip of the rotating arm and fixes an electronic component connector that is a specimen.
In such a testing machine, the rotating arm swings based on the rotation of the motor and is lifted to an arbitrary height and stopped. Colliding and generating impact acceleration in the form of a half sine wave. After the rebound, the pendulum is prevented from colliding again by the brake, and the required acceleration is applied to the electronic component connector only once. It is also possible to apply the required acceleration continuously.
[0034]
When the impact test was conducted, the electronic component connector of the example withstood 1200G impact, and no instantaneous interruption occurred between the button battery housed in the electronic component connector and the circuit board.
On the other hand, the electronic component connector of the comparative example could not endure the impact of 500 G, and an instantaneous interruption occurred between the button battery and the circuit board.
[0035]
【The invention's effect】
As described above, according to the present invention, there is an effect that the connection can be stabilized and the connection load can be suppressed. In addition, since the interference body is provided at the bottom of the elastic holder, it is possible to suppress the deterioration of the conduction posture of the end of the second conductive connection terminal exposed from the bottom of the elastic holder, that is, the inclination.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional explanatory view showing an embodiment of an electronic component connector and its connection structure according to the present invention.
FIG. 2 is a schematic cross-sectional explanatory view showing a second embodiment of a connector for electronic parts and a connection structure thereof according to the present invention.
FIG. 3 is a schematic cross-sectional explanatory view showing third and fourth embodiments of the connector for electronic parts and the connection structure thereof according to the present invention.
FIG. 4 is a schematic cross-sectional explanatory view showing third and fourth embodiments of the connector for electronic parts and the connection structure thereof according to the present invention.
FIG. 5 is an explanatory view showing a fifth embodiment of an electronic component connector and its connection structure according to the present invention.
6 is a cross-sectional view of FIG.
FIG. 7 is an explanatory cross-sectional view showing a sixth embodiment of a connector for electronic parts and a connection structure thereof according to the present invention.
FIG. 8 is an explanatory cross-sectional view showing a seventh embodiment of the connector for electronic parts and the connection structure thereof according to the present invention.
FIG. 9 is an explanatory view showing a testing machine in an embodiment of an electronic component connector according to the present invention.
[Explanation of symbols]
1 Button battery (electronic parts)
2 Negative electrode (first electrode)
3 Positive electrode (second electrode)
DESCRIPTION OF SYMBOLS 10 Elastic holder 12 Convex part 13 Clearance 20 1st conductive connection terminal 30 2nd conductive connection terminal 31 Lower end part (exposed part)
40 Interfering body 40A Interfering body 50 Circuit board (electrical joint)
51 electrodes

Claims (2)

A connector for an electronic component used for electrical connection of an electronic component in which a first electrode is formed on a surface and a second electrode is formed on a peripheral surface,
An insulating elastic holder that is formed in a substantially bottomed cylindrical shape and houses an electronic component, a first conductive connection terminal that is provided through the elastic holder and contacts the first electrode of the electronic component, and elastic provided through the bottom of the holder, seen including a second conductive connecting terminals coming into contact with the second electrode of the electronic component,
The connector for electronic components characterized by providing the insulating interference body which contacts the 2nd conductive connection terminal in the bottom part of an elastic holder, and suppresses the deterioration of the conduction posture . A connection structure for an electronic component connector for electrically connecting an electronic component and an electrical joint, wherein the first electrode is formed on the surface and the second electrode is formed on the peripheral surface,
An electronic component connector according to claim 1, wherein the first and second conductive connection terminals of the electronic component connector are brought into contact with the electrical joint. Connection structure.

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