JP6522887B2 - Case structure of electronic device - Google Patents

Description

  The present invention relates to a housing structure of an electronic device, and more particularly to a housing structure useful for a battery-driven electronic device.

  Miniaturization is an important issue for electronic devices, particularly portable electronic devices. Portable electronic devices are often battery-powered, but their size has not progressed compared to circuit miniaturization, and it is easy to miniaturize electronic devices while securing battery storage space. Not In particular, in an electronic device that needs to use a battery whose size is standardized, such as a dry battery, miniaturization is more difficult than an electronic device that uses a dedicated rechargeable battery.

  Furthermore, when making a battery drive type electronic device into a waterproof structure, it is necessary to make a battery cover that can be opened and closed into a waterproof structure in order to replace the battery. Conventionally, when the battery cover of an electronic device using a dry cell is made waterproof, the metal electrode material required for the battery cover and the waterproof packing made of rubber are configured as separate parts (Non-Patent Documents 1 and 2) ).

"Pentax, waterproof compact digital camera" Optio 43WR ", [online], April 22, 2004, PC Watch, [search April 15, 2014], Internet <URL: http: //pc.watch.impress .co.jp / docs / 2004/0422 / pentax.htm> “Digital Camera Optio 43WR Instruction Manual”, [online], page 12 “Full Screen”, PENTAX Corporation, [April 15, 2014 search], Internet <URL: http: //www.ricoh-imaging. co.jp/japan/support/man-pdf/optio-43wr.pdf>

  When the waterproof packing and the electrode material are formed as separate parts, there is a problem in that the number of parts increases, the number of assembly steps and the cost increase as well as the size reduction is disadvantageous.

  The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a housing structure in which a waterproof function and a reduction in size are compatible in an electronic device using a battery as a power supply.

The above-described object is a housing structure of an electronic device using a plurality of batteries as a power supply, and is provided openably and closably with respect to a housing body having a battery accommodating portion for housing a plurality of batteries, and in an open state The battery cover includes a battery cover that enables replacement of a battery stored in the storage unit, and the battery cover includes a base plate and a packing made of an elastic resin material provided to cover the base plate, and the packing is a battery The battery has a plurality of electrode portions functioning as contacts of a plurality of batteries loaded in the housing portion, and the battery has a shape in which the positive electrode and the negative electrode are different, and each of the plurality of electrode portions has the battery oriented in the battery housing portion in when housed, it has a region in which electrical conductor portion electrically connected to the conductive member of the base plate is exposed so that only one of the positive electrode and the negative electrode is in contact with the battery, a positive Acts as a contact for the contact or the negative electrode of the use, the elastic resin material, when the battery is housed in the correct orientation in the battery accommodating portion is in contact with the region where the positive electrode and the negative electrode conductive member is exposed with the battery, when the battery is housed in a wrong direction in the battery accommodating portion, as electrodes of the battery are in contact with the elastic resin material, the electronic device characterized by chromatic and a portion not covered with the portion covering the base plate This is achieved by the housing structure of

  With such a configuration, according to the present invention, in an electronic device using a battery as a power supply, it is possible to provide a housing structure in which a waterproof function and a reduction in size are compatible.

It is an appearance perspective view showing the case structure of the telemetry transmitter as an example of the electronic device which can apply the present invention. It is a disassembled perspective view which shows the structure of the battery cover which concerns on embodiment. The battery cover which concerns on embodiment WHEREIN: It is the perspective view which showed the part in which the coating layer is provided, and the part which is not provided. It is a vertical sectional view of a battery lid concerning an embodiment.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. Although an embodiment in which the casing structure according to the present invention is applied to a telemeter transmitter that can use a plurality of batteries as a power supply will be described below, the casing structure according to the present invention uses a plurality of batteries as a power supply. It is applicable to any usable electronic device.

  FIG. 1 is a perspective view showing a housing structure of a telemeter transmitter as an example of an electronic apparatus to which the present invention can be applied. Here, a state in which a part of the case is removed is shown so that the case structure related to the battery cover characteristic of the present embodiment can be understood. A telemeter transmitter 100 according to the present embodiment is a battery represented by a cylindrical battery, in which positive and negative electrodes of different shapes exist on two parallel surfaces such as both end surfaces in the height direction (hereinafter simply referred to as a battery). Driven by). Therefore, the telemeter transmitter 100 has a battery cover 110 which is an open / close unit for loading or replacing the battery 101. In the present embodiment, two batteries 101 are accommodated in the battery accommodating portion 181 in the casing and connected in series. The battery 101 may be a primary battery or a secondary battery.

  The battery cover 110 is rotatably attached at one end thereof to a shaft of the casing body by a bearing portion 140 and can be opened and closed as indicated by an arrow A. An opening / closing lever 135 and a lock lever 130 are provided on the surface of the battery lid 110 (the surface that constitutes the outer surface of the housing). The open / close lever 135 is movable between the lock position (FIG. 1) and the lock release position on the lock lever 130 side, and is biased by a spring in the lock position direction when the battery cover 110 is closed.

  At the end of the battery cover 110, a claw portion 115 which moves along with the opening / closing lever 135 is provided. The claw portion 115 is biased outward by a spring, and is exposed as shown in FIG. 1 when the open / close lever 135 is in the lock position. When the battery cover 110 is closed in this state, the spring is compressed when the battery cover 110 is pushed into the housing body, and the claws 115 are retracted into the battery cover 110 and then enter the grooves 105 provided on the inner surface of the housing body. The battery cover 110 is kept closed. When the opening / closing lever 135 moves to the unlocking position, the claw portion 115 is retracted into the inside of the battery cover 110 and disengaged from the groove 105 and biased upward by a torsion spring built in the bearing portion 140 to open the battery cover 110.

  When the battery cover 110 is in the open state, access to the battery storage unit 181 becomes possible, and the user can load the battery 101 into the battery storage unit 181 or replace the stored battery 101. The battery housing portion 181 has a case 183 for housing the individual batteries 101 and a main body side electrode 182 in the form of a coil spring. In this embodiment, since the batteries 101 are connected in series, the two batteries 101 are loaded in opposite directions.

  A waterproof packing 120 is attached to the back surface of the battery cover 110 (the surface facing the electrode of the battery 101) by screws 127 and 128. As described later, the waterproof packing 120 is formed with electrode portions 122 and 124 having a reverse charge preventing structure of the battery.

  FIG. 2 is an exploded perspective view showing the structure of the battery cover 110 of the present embodiment, in particular, the mounting structure of the waterproof packing 120. As shown in FIG. The battery lid 110 is composed of a lid body 111 and a waterproof packing 120, and the waterproof packing 120 is a screw 127, 128 attached to screw receptacles 113, 114 provided on the lid body 111 through the screw holes 125, 126. Is fixed to the lid body 111.

  The lid main body 111 has a metal plate 112, and in the space formed by the plate 112 and the lid main body 111, mechanical components such as the opening / closing lever 135, the lock lever 130, and the claw portion 115 described above are accommodated.

  The waterproof packing 120 is provided to give the battery cover 110 a function (collectively referred to as waterproofness) to prevent liquid and dust from entering from the outside through the periphery of the battery cover 110. In the waterproof packing 120 of the present embodiment, a metal base plate (see FIG. 4) in which the electrode portions 122 and 124 of the battery 101 and the screw holes 125 and 126 are formed is provided with a covering layer 121 made of an elastic material such as silicon resin. Have the following configuration. Such a waterproof packing 120 can be manufactured using an insert molding technique.

  FIG. 3 is a perspective view of the waterproof packing 120, and the portion where the covering layer 121 is provided and the portion where the covering layer 121 is not provided are shown in different colors. The cover layer 121 is provided in the gray part, and the cover layer 121 is not provided in the white part. The base plate is exposed at a portion where the covering layer 121 is not provided, and functions as an electrode and a wire between the electrodes. Specifically, a portion 1221 of the electrode portion 122 without the covering layer 121 functions as a contact for the positive electrode, and a portion 1241 of the electrode portion 124 without the covering layer 121 functions as a contact for the negative electrode. The screws 127 and 128 have no electrical connection with other members in the lid body 111.

  FIG. 4 is a vertical sectional view of the waterproof packing 120. In the base plate 123, a central portion 1242 of the electrode portion 124 and screw holes 125 and 126 are punched out. Further, the portions forming the electrode portions 122 and 124 are processed to be higher than the other portions. More specifically, the electrode portions 122 and 124 can be in contact with the base plate 123 by only one of the positive electrode and the negative electrode of the battery 101 by the combination of the shape of the base plate 123 and the region where the covering layer 121 is not provided. Do. As a result, the waterproof packing 120 is formed with a structure for preventing reverse battery loading (malfunction). In the present embodiment, since the two batteries 101 are connected in series, only the positive electrode of the battery 101 and the electrode portion 124 having the exposed portion 1241 of the base plate 123 so that only the negative electrode of the battery 101 can be in contact. An electrode portion 122 having a portion 1221 in which the base plate 123 is exposed is disposed adjacent to the base plate 123 so as to be in contact therewith, and the base plate 123 is configured to electrically connect the positive electrode and the negative electrode of the battery 101.

  The electrode portion 124 to be in contact with the negative electrode of the battery 101 has a base plate in a part of the area excluding the orthographic drawing of the top face of the positive electrode cap from the orthographic drawing of the negative terminal of the battery 101 mounted in the corresponding housing It is configured to be exposed. More specifically, an annular portion 1241 in contact with the negative electrode of the battery 101 but not in contact with the positive electrode is raised, and the annular portion 1241 is for the negative electrode by not providing the covering layer 121. Act as the contact point of In addition, since the base portion 123 is punched out of the central portion 1242 of the electrode portion 124 inside the portion 1241 and filled with the covering layer 121, the positive electrode is in contact with the insulator when the battery 101 is reversely loaded. The covering layer 121 can be used to prevent a malfunction or failure during reverse loading. Although the case where the entire annular portion 1241 is in contact with the negative electrode is shown here, a part of the annular portion 1241 may be in contact with the negative electrode.

  Further, a convex portion of the positive electrode cap of the battery 101 can be in contact with the electrode portion 122 to be in contact with the positive electrode of the battery, and a portion 1221 where the base plate 123 is exposed is provided at a position where the negative electrode can not be in contact. Specifically, the cover layer 121 (1222) is provided on the top surface portion of the truncated cone-shaped electrode portion 122, and the negative electrode is in contact with the cover layer 121 of the insulator when the battery 101 is reversely loaded. Do. In the center of the top surface portion of the electrode portion 122, a concave portion of a shape that can be in contact with the convex portion of the positive electrode cap of the battery 101 is formed in a caldera shape (as recessed from the top surface portion). A portion 1221 in which 123 is exposed is provided.

  With such a configuration, the base plate 123 is also used as a wire for electrically connecting the portions 1221 (positive electrode contact) and 1241 (negative electrode contact) provided in the recess and the annular portion and not provided with the covering layer 121. Function. In addition, although the structure which comprised the base plate 123 with the metal plate was demonstrated, you may form with another electroconductive material. In addition, it is not necessary for the entire base plate 123 to have conductivity, as long as the portions exposed as the positive electrode contact and the negative electrode contact and the portions connecting the portions have conductivity.

  In addition, at least one of the positive electrode contact and the negative electrode contact functioning as the contacts of the battery 101 does not have to have the base plate 123 exposed directly. For example, another conductive member electrically connected to the base plate 123 or the conductor portion of the base plate 123 may be configured to be exposed from the covering layer 121.

  As described above, in the battery lid 110 of the present embodiment, the waterproof packing attached to the battery lid is covered with the elastic resin material of the insulator while exposing the region electrically connected to the conductor portion of the core material. It was composition. As a result, the electrode material and the waterproof packing, which were conventionally separate parts, can be made into one part, and in addition to the reduction of the number of parts, a configuration advantageous for downsizing can be realized. Furthermore, by using a conductive material as a core material of the waterproof packing, it can function as a wire between the electrode terminals, and a space for wiring and wiring becomes unnecessary, which is advantageous for further downsizing.

  In addition, the elastic resin material for waterproof packing is used as an insulator, and the shape of the exposed portion of the conductive material is made to be a shape that allows only a specific electrode of the battery to be in contact, in the wrong direction of the battery. Even when loaded, the circuit of the electronic device can be prevented from malfunctioning or failing.

  Furthermore, by using a relatively hard material such as a metal plate as the core material and covering it with the material of the waterproof packing, it is possible to form the waterproof packing thinner than when forming the waterproof packing with an elastic material alone. Therefore, it is advantageous to miniaturize the housing also in that respect.

  Although the above-mentioned embodiment explained the case where two batteries were connected in series and used, the present invention is applicable also to the composition which uses three or more. However, in the case of series connection, the base plates are divided as necessary so that the same poles are not electrically connected, and the base plates are insulated.

Claims (11)

An enclosure structure of an electronic device using a plurality of batteries as a power supply,
It has a battery cover which is provided so as to be able to open and close with respect to a casing main body having a battery storage unit for storing the plurality of batteries, and it is possible to replace the battery stored in the battery storage unit in an open state. ,
The battery cover includes a base plate and a packing made of an elastic resin material provided to cover the base plate,
The packing includes a plurality of electrode portions functioning as contacts of the plurality of batteries loaded in the battery storage portion,
The battery has different shapes of positive and negative electrodes,
Each of the plurality of electrode parts is electrically connected to the conductive part of the base plate so that only one of the positive electrode and the negative electrode of the battery can be in contact when the battery is housed in the battery housing in the correct direction. It has an exposed area of the electrically connected conductive member, and functions as a positive electrode contact or a negative electrode contact ,
The elastic resin material is
When the battery is housed in the battery housing in the correct direction, the positive electrode and the negative electrode of the battery are in contact with the exposed area of the conductive member,
When the said battery in the battery housing portion is accommodated in the wrong orientation, so that the electrode in which the battery has contacts with the elastic resin material, to have a the portion not covered with the portion that covers the base plate The housing structure of the electronic device to be characterized. The battery has a positive electrode having a convex portion and a negative electrode having no convex portion,
Among the plurality of electrode portions, the electrode portion functioning as a negative electrode contact can not be in contact with the convex portion, and a part of the region where the negative electrode can be in contact electrically with the conductor portion of the base plate The housing structure of the electronic device according to claim 1, further comprising an exposed area of the conductive member connected to the second housing. The battery has a positive electrode having a convex portion and a negative electrode having no convex portion,
Among the plurality of electrode parts, the electrode part functioning as a contact for the positive electrode exposes the conductive member electrically connected to the conductor part of the base plate in the concave part formed in the central part, The case structure of the electronic device according to claim 1 or 2, having a configuration in which a periphery is covered with the elastic resin material.   The said several electrode part is arrange | positioned so that the electrode part which functions as a contact for positive electrodes, and the electrode part which functions as a contact for negative electrodes may adjoin, The housing structure of the electronic device as described in a paragraph.   The housing structure of an electronic device according to any one of claims 1 to 4, wherein the conductor portion of the base plate functions as a wire connecting adjacent electrode portions.   The housing structure of an electronic device according to any one of claims 1 to 5, wherein the packing provides waterproofness to the battery lid.   The housing structure of the electronic device according to any one of claims 1 to 6, wherein the conductive member electrically connected to the conductor portion of the base plate is a part of the base plate.   The conductive member electrically connected to the conductive portion of the base plate is a conductive member other than the base plate, which is connected to the conductive portion of the base plate. The housing structure of the electronic device according to any one of the above.   The housing structure of an electronic device according to any one of claims 1 to 8, wherein the base plate is made of a conductive material.   The housing structure of an electronic device according to any one of claims 1 to 8, wherein the base plate is configured of a conductor and an insulator. An electronic device comprising the housing structure of the electronic device according to any one of claims 1 to 10 .

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