JP2002117925A - Vibrator with connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive vibrator with a connector simplifying connection work of electrodes and allowing connection by comparatively low load. SOLUTION: The connector 20 conducting an electrode 3 of the vibrator 1 with an electrode 5 of an electronic circuit board 4 is installed in a holder for housing the vibrator composing a cellphone. The connector 20 is composed of a housing 21 installed in an opening 12 of a bottom part of the holder 10, conductive spring elements 27 respectively fit in a plurality of through-holes 22 of the housing 21 and supported by them, conductive contactors 28 with substantially U-shaped cross sections attached on diametrally expanded lower end parts of each spring element 27 and contacting the electrode 5 of the electronic circuit board 4, and pin like conductive contactors 29 fit and supported on upper end parts of each spring element 27 and contacting the electrode 3 of the vibrator 1. Since the opposing electrode 3 of the vibrator 1 and electrode 5 of the electronic circuit board 4 are not connected by a lead wire or solder, delaying, complicating or the like of the connection work can be suppressed and prevented and cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrator with a connector used for electric and electronic equipment such as a portable telephone and a pager (registered trademark).

[0002]

2. Description of the Related Art A small communication device such as a cellular phone or a pager rings when an incoming call is received. When the ringing sound suddenly starts in a movie theater, a meeting, or on a train,
May cause discomfort or inconvenience to others. Therefore,
2. Description of the Related Art In recent years, a communication device with a built-in vibrator that notifies an owner of an incoming call by vibration has been proposed. This type of vibrator is not shown, but its electrodes are electrically connected to the electrodes of the electronic circuit board by thin leads and soldering, or the electrodes are attached to the electrodes of the electronic circuit board by leaf spring type connectors. Electrically connected via the

[0003]

A recent communication device is configured as described above, and when the electrode of the vibrator and the electrode of the electronic circuit board are simply connected by a lead wire and solder,
There is a problem that the connection work is delayed and complicated, and the cost is increased. Further, when connecting the electrode of the vibrator and the electrode of the electronic circuit board with a leaf spring type connector, a high load is required for reliable connection, and the elasticity of the leaf spring is lost when used for a long time. There is also a problem.

[0004] The present invention has been made in view of the above, and has as its object to provide an inexpensive vibrator with a connector that can simplify connection work and can be connected with a relatively low load.

[0005]

According to the present invention, in order to achieve the above object, a holder for storing a vibrator is provided with a connector for conducting electrodes facing each other. A through hole is provided at the bottom of the spring element, and a conductive spring element is fitted into the through hole. At least one end of both ends of the spring element has a diameter different from the diameter of the center part, and the spring element is inserted into the through hole. And a conductive contact is attached to at least one end of the spring element so that the other end of the spring element projects inward of the holder.

An opening can be formed in the bottom of the holder, a housing can be provided integrally with the opening, and the through hole can be provided in the thickness direction of the housing.
Further, the conductive contact body may be formed to have a substantially U-shaped cross section, and the bottom may be protruded outwardly from the bottom of the holder, and the other end of the spring element may support the substantially pin-shaped conductive contact body. . Also, the diameter of both ends of the spring element is formed to be smaller than the diameter of the central part, and substantially pin-shaped conductive contacts are respectively supported on both ends of the spring element, and one end of the spring element is attached to the holder. It can also be made to protrude to the bottom outside.

Here, when the through hole is provided in the holder in the claims, an opening may be formed in the bottom of the holder, and the through hole may be indirectly provided in this opening via the housing. Alternatively, the housing may be omitted, and a through hole may be directly formed in the bottom of the holder. The housing is rectangular,
It can be formed in a square, polygon, ellipse, circle, oval, or the like. This housing can be fixed to the opening at the bottom of the holder or can be provided detachably. The number of spring elements is two to four in parallel, preferably one to four in one row, preferably one to two in two rows in parallel.
Although this is good in terms of cost, it can be increased or decreased as necessary. The diameter of at least one end of the spring element may be larger or smaller than the diameter of the central part as long as it is difficult to come out of the through hole. The end of the substantially pin-shaped conductive contact body may be curved or may have a substantially rectangular cross section.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. Holder 10 for
A connector 20 for electrically connecting the electrode 3 on the lower lower surface of the vibrator 1 that vibrates by rotating the eccentric body 2 and the electrode 5 on the electronic circuit board 4 is installed on the holder 1.
0, a conductive spring element 27 fitted and supported in each of the plurality of through holes 22 of the housing 21,
A conductive contact body 28 attached to a lower end portion which is one end portion of
Each of the spring elements 27 is constituted by a conductive contact body 29 fitted and supported on an upper end portion which is the other end portion.

As shown in FIG. 1, the holder 10 is formed by using a predetermined insulating elastomer or the like.
The vibrator 1 is mounted on the electronic circuit board 4 in a state covered with the
To absorb the mounting error and attenuate the vibration from the vibrator 1 to the case 11. Holder 1 having this elasticity
Specific examples of 0 include natural rubber, polyisoprene, polybutadiene, chloroprene rubber, polyurethane-based rubber, and silicone rubber. Among these, silicone rubber is most suitable in consideration of weather resistance, compression strain characteristics, workability, and the like.

The bottom portion of the holder 10 does not have to be formed entirely of the above-mentioned insulating elastomer, but may be separately formed of a predetermined plastic resin, for example. Specific materials in this case include ABS resin, polycarbonate, polypropylene, polyvinyl chloride, polyethylene, and the like, which will be described later.
Resin is best.

The holder 10 is basically formed in a substantially U-shaped cross section or a horizontally long cylindrical shape using the above-mentioned insulating elastomer or plastic resin, and has a cylindrical inside and a prismatic outside. Is formed. An opening 12 is formed at the bottom of the peripheral wall of the holder 10, and the housing 21 of the connector 20 is integrally provided in the opening 12.

As shown in FIG. 2, the housing 21 of the connector 20 is formed of a predetermined material into a thin single-layer or multiple-layer planar rectangle, and a small-diameter through hole 22 is formed in a row direction and between rows. Pitch (for example, 0.5 mm to 1.27
mm) and perforated in the vertical thickness direction.
The elongated plate-shaped housing 21 has heat resistance, dimensional stability,
General-purpose engineering plastics with excellent moldability, etc.
(For example, ABS resin, polycarbonate, polypropylene, PVC, polyethylene, etc.). As shown in FIG. 3, each through-hole 22 has a tapered diameter-enlarged hole 23, a diameter-reduced hole 24, a tapered hole 25 located on the electronic circuit board 4 side, and a diameter-reduced hole 26 located on the vibrator 1 side. The conductive contact member 28 is formed integrally and continuously to facilitate insertion of the conductive contact member 28 and prevent the conductive contact member 28 from coming off.

As shown in FIG. 3, each spring element 27 has a diameter of, for example, 30 to 100 μm, preferably 30 to 7 μm.
A fine metal wire of 0 μm is wound at an equal pitch (for example, 50 μm) to form an elastic coil having a substantially truncated cone, so that it does not easily fall out of the through hole 22. Examples of the thin metal wires forming the spring element 27 include metal wires such as phosphor bronze, copper, stainless steel, beryllium copper, and piano wires, or thin metal wires obtained by plating these metal wires with gold. 30-70μ diameter of thin metal wire
The reason why m is selected is that if this value range is selected, low cost and low load connection can be easily realized.

Each of the spring elements 27 is, for example, 1.0 to 1.0.
The length is preferably 3.0 mm, preferably 1.0 to 1.8 mm, and about half the length from the housing 21 to the inside of the holder 10.
That is, it is desirable to project upward in FIG. Within such a range, adverse effects due to external noise can be avoided and elastic characteristics can be maintained. The diameter of the upper end of each spring element 27 is smaller than the diameter of the center from the lower end. Specifically, the diameter of the lower end portion or the central portion is about 0.5 to 0.8 times, about 0.6 to 0.8 times, more specifically 0.2 to 0.4 mm, preferably 0.3 to 0.8 mm. ~ 0.4m
m.

Each conductive contact 28 is, as shown in FIG.
For example, a bottom portion is formed to have a substantially U-shaped cross section using a gold-plated conductive material, and slightly protrudes downward from the bottom of the housing 21 (the protrusion amount is 0.1 to 0.3 mm, preferably 0.1 to 0.3 mm). The bottom surface contacts the electrode 5 of the electronic circuit board 4 or is appropriately fixed to the electrode 5 of the electronic circuit board 4 via a solder layer made of cream solder or the like to ensure conduction.

Each conductive contact 29, as shown in FIG.
For example, it is composed of a pin made of conductive brass or a conductive elastomer plated with gold, and contacts the electrode 3 of the vibrator 1. In the conductive contact body 29, a groove 30 that fits with the upper end of the spring element 27 is formed in an endless recess on the upper peripheral surface of the rod portion, and the upper end surface of the enlarged diameter head 31 is formed in a semicircular arc shape. ing. The enlarged diameter head 31 may be formed in a semicircular arc shape, but is not limited thereto, and may be formed in, for example, a conical shape or a pyramid shape.

According to the above configuration, the electrodes 3 of the vibrator 1 and the electrodes 5 of the electronic circuit board 4 which are opposed to each other are not connected by a lead wire or solder.
It is possible to extremely effectively prevent the complication and the like from being suppressed, and to greatly reduce the cost. The electrode 3 of the vibrator 1
And the electrode 5 of the electronic circuit board 4 are not connected by a leaf spring type connector 20. Therefore, the connection can be securely performed with a low load, and the elasticity is significantly lost even after long-term use. Absent. Further, a spring element 27 is provided between the vibrator 1 and the electronic circuit board 4 in the housing 21.
Therefore, the spring element 27 can be easily incorporated or mounted, and the positioning accuracy and the assemblability can be significantly improved.

Further, the height of the spring element 27 can be reduced without any problem (about 1.50 mm to 1.75 mm), and a low resistance and low load connection (for example, 40 g to 60 g) can be achieved.
g / pin) can be greatly expected. In addition, since the conductive contact body 28 having excellent stability and mountability is fitted and closed in the reduced diameter hole 24 of each through hole 22 and the conductive contact body 29 is brought into surface contact with the vibrator 1, stable conduction is greatly expected. it can. Further, an endless groove 30 is formed in the peripheral surface near the head 31 of the conductive contact body 29, and the upper end of the spring element 27 is fitted into the groove 30, so that the spring element 27 is hardly detached. Furthermore, since the head 31 of the conductive contact body 29 is hemispherical or semi-elliptical, the stability of conduction can be ensured even if the spring element 27 is slightly inclined forward, backward, left and right.

Next, FIG. 4 shows a second embodiment of the present invention. In this embodiment, a housing 21 is interposed between a vibrator 1 and an electronic circuit board 4 and a plurality of through holes are provided. A spring element 27 is fitted into each of the spring elements 22, and the diameter of the center part is made larger than the diameter of the upper and lower ends of each spring element 27, and the upper and lower ends of the spring element 27 project from the surface of the housing 21. The pin-shaped conductive contacts 29 are respectively fitted and supported by the
1 and the lower conductive contact 29 protruding from the electronic circuit board 4
The upper conductive contact 29 protruding from the housing 21 is brought into surface contact with the electrode 5 of the vibrator 1.

As shown in FIG. 1, the housing 21 includes a pair of housing plates 40 for convenience of assembly.
The pair of housing plates 40 are vertically stacked. Each through hole 22 is formed in the tapered hole 2 located on the electronic circuit board 4 side.
5, the tapered hole 24 and the tapered hole 25 are formed integrally and continuously. The other parts are the same as those in the above-described embodiment, and a description thereof will be omitted. In this embodiment, the same operation and effect as the above embodiment can be expected, and
Since the tapered holes 25 located at both ends of each through hole 22 are narrowed, it is possible to extremely effectively prevent the spring element 27 from falling off.

Next, FIG. 5 shows a third embodiment of the present invention. In this case, an insulating housing 21 is interposed between the vibrator 1 and the electronic circuit board 4 and a plurality thereof is provided. A conductive spring element 27 is fitted into each through-hole 22, and the diameter from the lower end to the center of each spring element 27 is formed larger than the diameter of the upper end. The upper end protrudes from the surface of the housing 21 from the part, and each spring element 27
A conductive contact 29 is fitted to the lower end of the
The projecting portion 9 is brought into contact with the electrode 5 of the electronic circuit board 4, and the upper end of each spring element 27 is brought into direct contact with the electrode 3 of the vibrator 1. The other parts are the same as those in the above-described embodiment, and a description thereof will be omitted.

FIG. 6 shows a fourth embodiment of the present invention. In this case, the housing 21 is omitted, and a plurality of through holes 22 are directly formed in the bottom of the holder 10, respectively. The spring element 27 is fitted and supported in the through hole 22. The other parts are the same as those in the above-described embodiment, and a description thereof will be omitted.

[0023]

As described above, according to the present invention, there is an effect that the connection work and the like can be simplified and the cost can be reduced because no lead wire or solder is required for the connection between the electrodes. In addition, it is possible to connect the electrodes with a relatively low load, and it is possible to effectively suppress loss or reduction of elasticity due to long-term use.

[Brief description of the drawings]

FIG. 1 is an overall sectional explanatory view showing an embodiment of a vibrator with a connector according to the present invention.

FIG. 2 is a partial cross-sectional perspective view showing an embodiment of a vibrator with a connector according to the present invention.

FIG. 3 is an explanatory sectional view of a main part showing an embodiment of a vibrator with a connector according to the present invention.

FIG. 4 is a second view of the vibrator with a connector according to the present invention.
It is principal part sectional explanatory drawing which shows embodiment of FIG.

FIG. 5 is a third vibrator with a connector according to the present invention.
It is principal part sectional explanatory drawing which shows embodiment of FIG.

FIG. 6 shows a fourth vibrator with a connector according to the present invention.
It is sectional explanatory drawing which shows embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibrator 3 Electrode 4 Electronic circuit board 5 Electrode 10 Holder 12 Opening 20 Connector 21 Housing 22 Through hole 27 Spring element 28 Conductive contact 29 Conductive contact 31 Head 40 Housing plate

Claims (4)

[Claims] 1. A vibrator with a connector, wherein a connector for conducting opposing electrodes is provided in a holder for storing the vibrator, wherein a through hole is provided in a bottom portion of the holder, and a conductive spring element is provided in the through hole. And the diameter of at least one end of both ends of the spring element is made different from the diameter of the central part to make it difficult for the spring element to come out of the through hole, and a conductive contact member is provided on at least one end of the spring element. A vibrator with a connector, wherein the other end of the spring element is mounted so as to protrude inward of the holder. 2. The vibrator with a connector according to claim 1, wherein an opening is formed in the bottom of the holder, a housing is provided integrally with the opening, and the through hole is provided in a thickness direction of the housing. 3. The conductive contact body is formed to have a substantially U-shaped cross section, the bottom of which is projected outward from the bottom of the holder, and the other end of the spring element supports a substantially pin-shaped conductive contact body. The vibrator with a connector according to claim 1. 4. The spring element according to claim 1, wherein both ends of the spring element are formed to be smaller in diameter than the center part thereof, and both ends of the spring element support substantially pin-shaped conductive contacts, respectively. The vibrator with a connector according to claim 1 or 2, wherein the vibrator is made to protrude outward from the bottom of the holder.