JP3653358B2 - Charger - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a charger for charging a battery, and more particularly to a charger capable of smoothly draining inflowing water.
[0002]
[Prior art]
The charger is provided with a mounting pocket in the case in order to easily attach and detach a battery or a device to be charged such as an electric device on which the battery is mounted to a fixed position. A device to be charged such as a battery is inserted into the mounting pocket and set in a fixed position. The reason for setting the device to be charged at a fixed position is to make sure that a charging terminal such as a battery is brought into contact with the contact of the charger. A device to be charged such as a battery set in the mounting pocket is charged by connecting a charging terminal to a contact. The charger having this structure can be used conveniently by inserting a device to be charged such as a battery into the mounting pocket and charging it, and pulling out the device to be charged such as a fully charged battery.
[0003]
[Problems to be solved by the invention]
However, a battery charger that is charged by inserting a device to be charged such as a battery into a mounting pocket provided in the case and mounting it at a fixed position has a drawback that it cannot quickly drain water that has entered the mounting pocket. Water that enters the mounting pocket enters the charger case through the contact hole. The water that has entered the case causes electric leakage and the like, causing a short circuit of the electronic parts or corrosion of the electric parts and causing a failure. In particular, the invading water collects inside the case, and is evaporated by the heat of the electronic parts. Further, if this state is repeated many times, the electronic parts become extremely short-circuited. This is because when water is evaporated, the impurity concentration increases and the conductivity of the water increases. This adverse effect can be reduced by narrowing the gap between the contact hole and the contact. However, the contact is elastically deformed and connected to the charging terminal such as a battery set in the mounting pocket, so that the contact can be elastically moved between the contact and the contact hole. It is necessary to provide a gap that can be created. When the contact contacts and slides on the contact hole, the movement becomes unsmooth and causes a contact failure between the charging terminal and the contact. For this reason, it is necessary to prevent the contact from coming into contact with the contact hole so as to be surely elastically pressed against a charging terminal such as a battery. For this reason, the contact hole cannot be made small so that water does not enter from here.
[0004]
The present invention has been developed to prevent the harmful effects of water entering the case. An important object of the present invention is to effectively prevent water from penetrating into the case from the contact hole, and to attach a charged device such as a battery to a fixed position of the mounting pocket easily and easily. It is to provide a charger that can be reliably charged.
[0005]
[Means for Solving the Problems]
Charger of the present invention has a battery 1 or mounting pockets 2 freely mounted desorb the charging device of an electric equipment wearing the battery 1,. The charger also has a built-in charging circuit for charging an object to be charged such as the battery 1 set in the mounting pocket 2.
Furthermore, the charger according to claim 1 of the present invention is configured such that at least one side surface of the mounting pocket 2 is opened and formed into a groove shape having a drainage channel 2A so that water flowing into the mounting pocket 2 can be drained. . In order to mount a device to be charged such as the battery 1 in a fixed position of the groove-shaped mounting pocket 2, the mounting pocket 2 is provided with a positioning guide 3 for mounting the device to be charged in a fixed position. That is, in the charger of the present invention, instead of mounting the charging target device at the fixed position by the mounting pocket 2, the charging target device is mounted at the fixed position by the positioning guide 3.
[0006]
Furthermore, a contact hole 5 is provided in the rising surface 2B of the mounting pocket 2 so as to expose the contact 4 connected to the charging terminal 9 of the device to be charged, located above the bottom surface of the mounting pocket 2. Yes. In the contact hole 5, a contact 4 connected to a charging terminal 9 of a device to be charged set in the mounting pocket 2 is provided.
[0007]
In the charger having this structure, when the device to be charged is mounted in the mounting pocket 2, the contact 4 is connected to the charging terminal 9 of the device to be charged to charge the device to be charged. The water flowing into the mounting pocket 2 is prevented from flowing out of the drainage channel 2A and entering the inside of the case 7 from the contact hole 5.
[0008]
Further, the charger of the present invention, the periphery of the contact hole 5, provided with a protrusion 6 protruding from the rising surface 2B, the convex portion 6 is provided with contact holes 5 away from the leading edge surface 2B. In the charger having this structure, the charged device such as the battery 1 is prevented from directly colliding with the contact 4 when the charged device such as the battery 1 is inserted into the mounting pocket 2. For this reason, it can prevent that the contact 4 hits to-be-charged objects, such as the battery 1, and is damaged.
[0009]
Further, the charger of the present invention, the convex portion 6 is provided with the contact hole 5, it is used in combination to positioning guide 3 for mounting an object to be charged tool 1 such as a battery in place.
[0010]
[Action]
The charger attaches a device to be charged such as the battery 1 to the attachment pocket 2 along the positioning guide 3. The mounting pocket 2 has a groove shape that opens the drainage channel 2A on at least one side surface. The groove-shaped mounting pocket 2 cannot mount the battery 1 or the like at an accurate position. This is because the battery 1 and the like are shifted laterally. In order to prevent lateral displacement of the battery 1 or the like, a positioning guide 3 is provided in the mounting pocket 2. That is, the battery charger according to the present invention is configured so that the mounting pocket 2 has a groove shape and the lateral displacement is prevented by the positioning guide 3 instead of being inserted into the mounting pocket 2 and setting the battery 1 or the like at a fixed position. The mounting pocket 2 that opens the drainage channel 2A smoothly drains the water flowing in here.
[0011]
Furthermore, the charger according to the present invention is provided with a contact hole 5 for exposing the contact 4 to the mounting pocket 2 above the bottom surface of the mounting pocket 2. For this reason, it is possible to reliably prevent water flowing into the mounting pocket 2 from entering the inside of the case 7 from the contact hole 5. In particular, the charger of the present invention does not collect water in the mounting pocket 2 and the contact hole 5 is disposed above the bottom of the mounting pocket 2, so that water can be reliably prevented from entering from the contact hole 5. There is a feature that can be.
[0012]
Further, the groove-shaped mounting pocket 2 that opens the drainage channel 2A can easily remove dust and the like entering the inside. For this reason, it is possible to reduce the contact failure between the charging terminal and the contact 4 by using the mounting pocket 2 as a clean environment.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below exemplifies a charger for embodying the technical idea of the present invention, and the present invention does not specify the charger as described below.
[0014]
Further, in this specification, in order to facilitate understanding of the scope of claims, the numbers corresponding to the members shown in the embodiments are designated by “claims column”, “action column”, and “solve the problem”. It is added to the members shown in the column of “Means for doing”. However, the members shown in the claims are not limited to the members in the embodiments.
[0015]
The charger shown in FIGS. 1 and 2 is provided with a mounting pocket 2 in which a battery 1 is mounted in a plastic upper case 7A. The upper case 7A is formed into a shape having an opening at the bottom, and a plastic bottom plate 7B is connected to the opening at the bottom to close the bottom.
[0016]
The mounting pocket 2 is formed in a groove shape by opening drainage channels 2A on both sides. The drainage channels 2 </ b> A on both sides are opened in the same plane as the bottom surface of the mounting pocket 2. This is because the inflowing water smoothly flows out to both sides. However, although not shown in the drawings, the mounting pockets can be slightly drained toward the drainage channels on both sides to drain water more smoothly. Further, the drainage channel 2A is not necessarily provided on both sides of the mounting pocket 2, and may be provided on at least one side surface.
[0017]
The mounting pocket 2 shown in the figure is formed in a groove shape having an opening on the upper side and both sides so that the battery 1 can be attached and detached in the vertical direction. The groove-shaped mounting pocket can be provided with a slight inclination from the vertical direction so that the battery is mounted in a slightly inclined posture. The inner width of the mounting pocket 2 is approximately equal to the thickness of the battery 1 to be mounted, and is precisely manufactured somewhat wider than this. This is for smoothly inserting the battery 1.
[0018]
The mounting pocket 2 formed into a groove shape is provided with a positioning guide 3 on the rising surface 2B in order to prevent the battery 1 from shifting sideways. The charger shown in the figure is formed by extending five rows of positioning guides 3 above and below the rising surface 2B. The positioning guide 3 is a convex portion protruding from the rising surface 2B, and the battery 1 is provided with a guide groove 8 for sliding the positioning guide 3 of the convex portion. A convex portion which is a positioning guide 3 is inserted into the guide groove 8 of the battery 1, and the battery 1 is detachably mounted at a fixed position of the mounting pocket 2.
[0019]
Contact holes 5 are opened in the three rows of positioning guides 3 arranged on both sides and the center. The contact hole 5 is a through hole that projects the contact 4 from the inside of the case 7 into the mounting pocket 2. The contact hole 5 is opened in the form of a slit extending vertically so that the contact 4, which is a metal wire that is elastically deformed, protrudes into the mounting pocket 2. The contact hole 5 is provided in the upper part of the convex part 6 used together with the positioning guide 3. This is to prevent water flowing into the mounting pocket 2 from flowing into the case 7 from the contact hole 5.
[0020]
The positioning guide 3 without the contact hole 5 is formed higher than the positioning guide 3 with the contact hole 5. Further, the positioning guide 3 without the contact hole 5 is provided extending upward from the positioning guide 3 provided with the contact hole 5. Further, the positioning guide 3 without the contact 4 has a shape that can smoothly guide the battery 1 to the mounting pocket 2 with the upper surface as an inclined surface. Further, the positioning guide 3 provided with the contacts 4 also has a shape that smoothly guides the guide groove 8 of the battery 1 with the upper surface as an inclined surface.
[0021]
When the battery 1 is inserted into the mounting pocket 2, the charger having this shape is guided to the positioning guide 3 without the contact 4 before the positioning guide 3 having the contact 4 built-in. For this reason, when the battery 1 is not inserted into an accurate position of the mounting pocket 2, it is possible to effectively prevent the positioning guide 3 with the contact 4 from colliding with the battery and being damaged. This is because the battery 1 collides with the positioning guide 3 without the contact 4 and cannot be inserted into the mounting pocket 2 any more. For this reason, there exists the feature which can protect the positioning guide 3 which provided the contact 4 with the positioning guide 3 without the contact 4. FIG.
[0022]
Furthermore, as shown in the figure, in the charger in which the contact hole 5 is provided on the convex portion 6 such as the positioning guide 3, the contact 4 is protected by the convex portion 6. When the battery 1 is inserted into the mounting pocket 2, the guide groove 8 of the battery 1 is first guided by the convex portion 6 that is the positioning guide 3, and the contact 4 is brought into contact with the charging terminal 9 of the battery 1 that is accurately inserted. This is because that. That is, the contact 4 does not directly collide with the bottom surface of the battery 1, and the contact 4 is brought into contact with the charging terminal 9 of the battery 1 inserted at an accurate position of the mounting pocket 2.
[0023]
Furthermore, since the positioning guide 3 incorporating the contact 4 and the positioning guide 3 without the contact 4 have different widths, the battery 1 cannot be inserted into the wrong positioning guide. The mounting pocket having this structure does not mount the battery in the wrong position, and can reliably prevent damage or failure due to a mistake. Furthermore, although not shown in the drawing, the charger can prevent misplacement by not changing the interval between the adjacent positioning guides, but by slightly changing the distance.
[0024]
The contact 4 protruding from the contact hole 5 to the mounting pocket 2 is a metal wire that can be elastically deformed, and is fixed to the printed circuit board 10 via the contact support plate 11 as shown in the sectional view of FIG. The metal contact 4 has a tip bent into a chevron, and a portion bent into the chevron is projected from the contact hole 5 into the mounting pocket 2. The tip of the contact 4 is bent, and the bent portion is brought into contact with the inner surface of the contact hole 5 to determine the protruding amount of the contact 4. Furthermore, the contact 4 is U-shaped in the middle so that the chevron can be elastically pressed against the charging terminal of the battery. The contact 4 is connected to the protrusion 11 </ b> A of the contact support plate 11 and the sandwiching portion 11 </ b> B, and the lower end is connected to the printed circuit board 10 by soldering. The contact support plate 11 also connects the lower end to the printed circuit board 10.
[0025]
The printed circuit board 10 fixes electronic parts (not shown) constituting the charging circuit. The charging circuit converts the commercial power input from the power cord 13 into a direct current of a voltage for charging the battery 1 and outputs it from the contact 4. A heat radiating plate 12 for cooling electronic parts that generate heat is also fixed to the printed circuit board 10. The printed circuit board 10 is fixed to the upper case 7 </ b> A or the bottom plate 7 </ b> B and disposed at a fixed position in the case 7. The contact 4 is disposed at a fixed position of the case 7 through the printed board 10.
[0026]
In the charger of the above embodiment, the battery 1 is mounted in the mounting pocket 2. In the charger of the present invention, it is not always necessary to install the battery taken out from the electric device in the mounting pocket. Although not shown, it is also possible to charge an electric device equipped with a battery and charge the battery attached to the electric device. The charger for mounting the electric device for mounting the battery has a shape of the mounting pocket so that the electric device can be mounted. A charger that is equipped with an electric device and charges the battery of the electric device can also charge the battery with the electric device in an operating state.
[0027]
A charger to which an electric device is attached can be conveniently used when the electric device is in an operating state while charging a battery, such as a mobile phone.
[0028]
【The invention's effect】
The charger of the present invention has the following excellent features.
(1) It has the feature that it can prevent the intrusion of water and reduce the trouble caused by water. That is, the charger of the present invention opens a drainage channel on at least one side surface of a mounting pocket for mounting a battery or the like to be charged, and forms a groove shape. This is because the contact hole is located and the contact hole is exposed from the contact hole to the mounting pocket. The groove-shaped mounting pocket that opens the drainage channel quickly drains the water flowing into the drainage channel. For this reason, water does not accumulate in the mounting pocket. Furthermore, a contact hole through which water may enter the case is opened above the bottom surface of the groove-shaped mounting pocket. For this reason, the charger of the present invention does not collect water in the mounting pocket, and even if water accumulates in the mounting pocket, the water does not enter the case from the contact hole, and water enters the case. There is a feature that can reliably prevent the intrusion of.
[0029]
{Circle around (2)} Charged devices such as batteries can be easily and easily attached to and removed from the mounting pocket at an accurate position. That is, the charger of the present invention is provided with a positioning guide in the groove-shaped mounting pocket, and the mounting pocket prevents the front / rear position displacement of the device to be charged, and the positioning guide allows the left / right lateral displacement of the device to be charged. This is because the charging target can be inserted into a fixed position of the mounting pocket.
[0030]
(3) The mounting pocket can be easily cleaned, and the contact failure between the battery charging terminal and the contact can be reduced. This is because the charger according to the present invention has a mounting pocket into which a device to be charged such as a battery is detachably inserted in a groove shape provided with a drainage channel on at least one side surface. For example, even if dust or the like enters the groove-shaped mounting pocket, a dust cloth or a brush can be moved sideways, and dust can be easily discharged and cleaned.
[0031]
(4) In addition, the charger of the present invention, since with a contact hole in the convex portion, to protect the contacts at the convex portion, it is possible to effectively prevent damage or deformation of the contact. This is because the contact does not directly collide with a device to be charged such as a battery. The contact provided on the convex portion guides the device to be charged to an accurate position by the convex portion, and comes into contact with a charging terminal such as a battery. For this reason, there is a feature that contact damage can be prevented and contact failure can be reduced.
[0032]
(5) Furthermore, the charger of the present invention, since a combination of protrusions having a contact on positioning the guide, to simplify the entire structure, to be charged device such as a battery in the correct position of the mounting pocket There is a feature that can be removed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a charger according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the charger shown in FIG.
DESCRIPTION OF SYMBOLS 1 ... Battery 2 ... Mounting pocket 2A ... Drainage channel 2B ... Standing surface 3 ... Positioning guide 4 ... Contact 5 ... Contact hole 6 ... Projection part 7 ... Case 7A ... Upper case 7B ... Bottom plate 8 ... Guide groove 9 ... Charging terminal 10 ... Printed circuit board 11 ... Contact support board 11A ... Protrusion 11B ... Clamping part 12 ... Heat sink 13 ... Power cord

Claims (1)

Battery (1), or the battery (1) has a mounting pocket for removably mounted desorb the charging device of an electric equipment wearing (2), to be charged device set in the mounting pocket (2) In the charger that has a built-in charging circuit,
The mounting pocket (2) is formed in a groove shape having a drainage channel (2A) on at least one side surface, and is shaped to drain water flowing into the mounting pocket (2). ) Is provided with a positioning guide (3) for mounting the device to be charged in place,
Furthermore, the rising surface (2B) of the mounting pocket (2 ) is provided with a convex portion (6) protruding from the rising surface (2B) as a positioning guide (3) , and this convex portion (6) In the contact hole (4), which is located above the bottom surface of the mounting pocket (2) and separates from the rising surface (2B) to expose the contact (4) connected to the charging terminal (9) of the device to be charged. 5) is opened, and in this contact hole (5), a contact (4) connected to the charging terminal (9) of the device to be charged set in the mounting pocket (2) is arranged,
When the device to be charged is installed in the mounting pocket (2), the contact (4) is connected to the charging terminal (9) of the device to be charged, the device to be charged is charged, and water flows into the mounting pocket (2). Then, the charger is configured such that the water flows out from the side drainage channel (2A).

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