JP3598797B2 - Electronics - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic device having a built-in motor and vibrating when the motor is driven, and more particularly to an electronic device in which vibration generated by driving a motor is efficiently transmitted to a case of the electronic device.
[0002]
[Prior art]
2. Description of the Related Art Mobile phones and pagers are known as electronic devices that incorporate a motor and vibrate when the motor is driven. A mobile phone or a pager informs a person who has an electronic device of an incoming radio wave state by generating vibration by driving a built-in motor.
[0003]
The structure in which these electronic devices incorporate a motor for generating vibration is described in Utility Model Registration No. 2531124. FIG. 5 shows a motor mounting structure described in this publication.
[0004]
The motor mounting structure shown in FIG. 5 includes a receiver case 51, a circuit board 56 installed inside the receiver case 51, and a battery housing case 53 attached to the circuit board 56 with screws. The motor housing 54 is provided on the circuit board 56.
[0005]
The motor accommodating portion 54 has a concave portion 54b, and a tongue-shaped bent portion 54a is formed at the upper end of both sides of the concave portion 54b. Further, a slit 54c is provided in the bent portion 54a, so that the bent portion 54a is easily bent.
[0006]
According to the motor mounting structure shown in FIG. 5, the motor 55 can be mounted in the concave portion 54b by bending the bent portion 54a of the motor accommodating portion 54 outward and inserting the motor 55 into the concave portion 54b. At this time, the elastic return force of the bent portion 54a acts to fix the motor 55 to the concave portion 54b.
[0007]
The motor mounting structure shown in FIG. 5 has been proposed to simplify the motor mounting operation, compared to the conventional motor mounting technique of fixing the motor to the circuit board by soldering the motor mounting bracket to the circuit board. It is a thing.
[0008]
[Problems to be solved by the invention]
Although the motor mounting structure shown in FIG. 5 certainly simplifies the motor mounting operation as compared with the motor mounting technology that requires soldering operation, the motor 55 is inserted into the concave portion 54b by bending the bent portion 54a. In order to make the operation of inserting a sufficiently simplified operation, it is necessary to make the bent portion 54a easily bendable. However, in this case, the fixing force of the motor 55 due to the elastic restoring force of the bent portion 54a is also reduced, and as a result, the mechanical strength of the entire device obtained by the motor mounting structure of FIG. 5 is limited. .
[0009]
Further, providing the motor housing portion 54 having the concave portion 54b and the bent portion 54a on the circuit board 56 requires a processing step and an attaching step of the motor housing portion 54.
[0010]
Further, the motor mounting structure shown in FIG. 5 fixes the motor 55 on the circuit board 56, so that the vibration of the motor 55 is transmitted to the receiver case 51 via the motor housing 54 and the circuit board 56. Therefore, a loss of vibration energy is likely to occur before the vibration of the motor 55 is transmitted to the receiver case 51.
[0011]
The present invention has been made in view of such a point, and can easily perform a motor mounting operation, and reduce the number of auxiliary members for motor mounting and the degree of processing. Another object of the present invention is to provide an electronic device that can have sufficient mechanical strength and that can efficiently transmit vibration generated by driving a motor to a case.
[0012]
[Means for Solving the Problems]
The present invention includes a main body case, a motor unit and a power supply unit disposed in the main body case, and a substrate interposed between the main body case and the motor unit and electrically connecting the motor unit and the power supply unit. The electronic device is characterized in that a holding projection for holding the motor is provided integrally with the main body case, and the motor portion is housed and held in the holding projection.
[0013]
According to the present invention, the holding projection for holding the motor is provided integrally with the main body case, and the motor portion is housed and held in the holding projection. Therefore, the number of the auxiliary members for mounting the motor and the degree of processing are reduced. It is reduced and the mounting work of the motor is extremely easy, and the vibration generated by driving the motor is efficiently transmitted to the main body case of the electronic device.
[0014]
According to another aspect of the present invention, there is provided a motor unit used in the electronic device described above, wherein the motor unit includes a notch for engaging with a holding protrusion of a main body case.
[0015]
ADVANTAGE OF THE INVENTION According to this invention, a motor part can be more easily and stably mounted | worn with the holding | maintenance protrusion for motor holding provided integrally with the main body case. The notch in the motor section can also be used as a reference for various alignments during the assembly process.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 and 2 are diagrams showing a first embodiment of an electronic device according to the present invention. 1 is a schematic diagram of main components of the electronic device before assembly, and FIG. 2 is a schematic diagram of the electronic device after assembly.
[0017]
As shown in FIGS. 1 and 2, the electronic device 1 of the present embodiment includes a first case 30 that forms a lower part of a main body case, and a holding protrusion for holding a motor is provided in the first case 30. 35 and 36 are provided integrally with the first case 30. The holding projections 35 and 36 of the first case 30 house and hold the substrate 20 and the motor unit 10, and a power supply unit 45 is provided in the first case 30.
[0018]
As shown in FIG. 1, the motor unit 10 generates vibration and has a substantially cylindrical motor body 13 and a weight 14 having a substantially semicircular cross section provided on an output shaft of the motor body 13. ing. A notch 16 for engaging with the holding projection 36 of the first case is formed at an end of the motor body 13 on the output shaft side, and a notch 16 is formed at an end of the motor body 13 opposite to the output shaft. A notch 15 for engaging with the holding projection 35 of the case is formed. The notch 16 is formed on the left and right sides of the motor body 13, and the notch 15 is formed such that only the upper part of the motor body 13 remains.
[0019]
A plus terminal 11 for driving the motor is formed on the lower surface of the notch 15 side of the motor body 13, and the entire side surface of the motor body 13 except the plus terminal 11 is configured as a minus terminal 12.
[0020]
Further, as shown in FIG. 1, the substrate 20 has conduction members 21 and 22 for supplying electric power from the power supply unit 45 to the motor unit 10. The conductive member 21 is electrically connected to the positive terminal of the power supply unit 45 and is arranged to contact the positive terminal 11 of the motor unit 10. The conductive member 22 is arranged so as to be electrically connected to the negative pole of the power supply unit 45 and to contact the negative terminal 12 of the motor unit 10. In this case, it is desirable that the conductive members 21 and 22 be made of an elastic member so as to reliably contact the motor unit 10. For example, the conductive members 21 and 22 may be configured by a leaf spring. Further, the substrate 20 has notches 25 and 26 for engaging with the holding projections 35 and 36.
[0021]
Next, a method of assembling the electronic device 1 of the present embodiment shown in FIG. 2 using the main members shown in FIG. 1 will be described. First, the notches 25 and 26 of the board 20 are engaged with the holding projections 35 and 36 of the first case 30, and the board 20 is stored in the holding projections 35 and 36 of the first case.
[0022]
Next, the notches 15 and 16 of the motor unit 10 are engaged with the holding projections 35 and 36 of the first case 30, and the motor unit 10 is housed in the holding projections 35 and 36 of the first case. The notches 15, 16 allow the motor unit 10 to be more easily mounted on the holding projections 35, 36. The notch 15 formed so that only the upper part of the motor main body 13 remains engages with the holding projection 35, thereby preventing "reverse insertion" when mounting the motor unit 10.
[0023]
After that, the second case 40 constituting the upper part of the main body case is connected and fixed to the upper part of the first case 30, and the upper surface of the motor unit 10 is pressed down by the bottom wall of the second case 40. As a result, the motor unit 10 is extremely firmly housed and held in the holding projections 35 and 36, and the positive terminal 11 and the negative terminal 12 of the motor unit 10 and the conductive members 21 and 22 of the substrate 20 are reliably electrically connected to each other. Can be connected. In particular, when the conductive members 21 and 22 are formed of leaf springs and have elasticity, the contact area between the conductive members 21 and 22 and the electrodes 11 and 12 of the motor unit 10 is increased, so that conductivity is secured. It is more preferable from both points of view and holding performance of the motor.
[0024]
In order to press the motor unit 10 against the substrate 20, a unique lid member may be provided in the first case 30 instead of using the bottom wall of the second case 40. Further, a hook mechanism may be provided at an engagement portion between the notches 15 and 16 and the holding projections 35 and 36, and the hook mechanism may be operated during assembly. In addition, it is preferable that wiring (printing) is performed so that the electrical connection between the substrate 20 and the power supply unit 45 is automatically made by the above-described assembly process.
[0025]
Next, the operation of the present embodiment having such a configuration will be described. In the electronic device 10 of the present embodiment, when the motor unit 10 is driven by receiving the supply of power from the power supply unit 45, the weight 14 provided on the output shaft rotates. Since the weight 14 has a substantially semicircular cross section and an imbalanced weight, vibration occurs in the entire motor unit 10. Since the motor unit 10 is directly fixed to the main body cases 30 and 40 of the electronic device by the holding projections 35 and 36 and the bottom wall of the second case 40, vibrations generated in the motor unit 10 can be efficiently transmitted to the main body case 30. , 40.
[0026]
Since the notch 16 on the side of the motor body 13 is engaged with the holding protrusion 36, the motor body 13 itself is prevented from rotating due to the reaction force of the rotational drive of the motor unit 10.
[0027]
As described above, according to the present embodiment, the number of auxiliary members for mounting the motor and the degree of processing are reduced, and the processing of the auxiliary members and the attachment of the auxiliary members are easy.
[0028]
Further, according to the present embodiment, the mounting operation of the motor can be performed extremely easily and in a short time by integrating the members in order in the entire assembling process. Further, according to the present embodiment, since the motor unit 10 and the substrate 20 are housed and held in the holding projections 35 and 36, the electronic device 1 can have sufficient mechanical strength.
[0029]
Further, according to the present embodiment, since the vibration generated by driving the motor unit 10 is directly transmitted to the main body cases 30 and 40 of the electronic device 11, the vibration energy of the motor can be efficiently used with very little loss. Used for 40 vibrations.
[0030]
The notch 15 has an effect of preventing “reverse insertion” when the motor unit 10 is mounted, and the notch 16 has an effect of preventing the motor body 13 from rotating due to the reaction force of the rotation drive. Have. Note that the notches 15, 16, 25, 26 can also be used as references for various alignments in the assembly process of the electronic device 1.
[0031]
Next, a second embodiment of an electronic apparatus according to the present invention will be described with reference to FIGS. In FIGS. 3 and 4, in the electronic device 2 of the second embodiment, the board 20 has the conductive wire patterns 23 and 24 instead of the conductive members 21 and 22, and the conductive between the board 20 and the motor unit 10. It differs only in that it has a rubber connector 28 as a member, and the other configuration is substantially the same as the electronic device 1 of the first embodiment shown in FIGS. 1 and 2. In the second embodiment, the same parts as those in the first embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description is omitted.
[0032]
The rubber connector 28 is an elastic body having a large number of parallel conducting wires 29 built therein. In the present embodiment, as shown in FIG. 3, the parallel conducting wires 29 are arranged vertically and pressed vertically. This allows the pressing portion to conduct vertically. However, the type of the rubber connector as the conductive member is not limited to this.
[0033]
According to the present embodiment, by providing the conductor patterns 23 and 24 on the board 20 and interposing the rubber connector 28 between the board 20 and the motor unit 10, the conductive members 21 and 22 in the first embodiment are provided. Can be obtained the same effect as the case where is constituted by an elastic body. Since the process of manufacturing the substrate 20 of the present embodiment is easier than the process of manufacturing the substrate 20 having the conductive members 21 and 22 made of an elastic body, the electronic device 2 can be manufactured more easily. .
[0034]
The electronic devices to which the present invention is applied, that is, the electronic devices 1 and 2 that transmit information to the holder by generating vibrations include watches, portable computers, and entertainment electronic devices in addition to mobile phones and pagers. Is also applicable.
[0035]
【The invention's effect】
As described above, according to the present invention, the number of auxiliary members for mounting the motor unit and the degree of processing are reduced, the steps for processing the auxiliary members and attaching the auxiliary members are easy, and In the above assembly process, the mounting operation of the motor can be performed extremely easily and in a short time.
[0036]
Further, according to the present invention, since the vibration generated by driving the motor unit is directly transmitted to the main body case of the electronic device, the vibration energy of the motor efficiently becomes the vibration energy of the main body case with extremely small loss.
[0037]
Further, according to the present invention, the electronic device can obtain sufficient mechanical strength.
[0038]
Further, according to the present invention, the motor portion can be more easily and stably mounted on the holding projection of the main body case by the notch of the motor portion.
[Brief description of the drawings]
FIG. 1 is a schematic view showing main members of an electronic apparatus according to a first embodiment of the present invention before assembly.
FIG. 2 is an exemplary diagram showing the electronic apparatus according to the first embodiment of the present invention after assembly;
FIG. 3 is an exemplary diagram showing main members of an electronic apparatus according to a second embodiment of the present invention before assembly.
FIG. 4 is an exemplary diagram showing an electronic device according to a second embodiment of the present invention after assembly;
FIG. 5 is a schematic view showing a conventional motor mounting structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electronic device 2 Electronic device 10 Motor part 11 Positive terminal 12 Negative terminal 13 Motor body 14 Weight 15 Notch 16 Notch 20 Substrate 21 Conductive member 22 Conductive member 23 Conductive pattern 24 Conductive pattern 25 Notch 26 Notch 28 Rubber connector 30 First case 35 Holding projection 36 Holding projection 40 Second case 45 Power supply unit 51 Receiver case 53 Battery storage case 54 Motor storage 54a Bent 54b Recess 54c Slit 55 Motor 56 Circuit board

Claims (6)

Body case,
A motor unit and a power supply unit arranged in the main body case,
A substrate disposed in the main body case and electrically connecting the motor unit and the power supply unit,
With
In the main body case, a holding protrusion for holding the motor unit is provided integrally with the main body case,
The motor portion is stored and held in the holding protrusion,
One side of the motor unit is in contact with the other side of the substrate,
An electronic device, wherein one side surface of the substrate is supported in contact with the main body case. The electronic device according to claim 1, wherein the motor unit has a notch for engaging with the holding protrusion. Body case,
A motor unit and a power supply unit arranged in the main body case,
A substrate disposed in the main body case and electrically connected to the power supply unit;
A conductive member for making an electrical connection between the substrate and the motor unit,
With
In the main body case, a holding protrusion for holding the motor unit is provided integrally with the main body case,
The motor portion is stored and held in the holding protrusion,
One side of the motor unit is in contact with the other side of the conductive member,
One side surface of the conductive member is in contact with the other side surface of the substrate,
An electronic device, wherein one side surface of the substrate is supported in contact with the main body case. The electronic device according to claim 3, wherein the conductive member is formed of a leaf spring. The electronic device according to claim 3, wherein the conductive member is formed of a rubber connector. The electronic device according to claim 1, wherein the substrate has a notch for engaging with the holding protrusion.

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