JP2012221585A - Electronic apparatus case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy-to-manufacture and -assemble electronic apparatus case with excellent waterproofness and robustness.SOLUTION: An electronic apparatus case comprises a case body 1 that houses a circuit board of an electronic apparatus, and that is provided with a battery insertion port, in which a battery for supplying power to the electronic apparatus is inserted, on one end; and a battery cover 3 pressing the battery inserted in the battery insertion port in a direction of a circuit board 10 to block the battery insertion port. The circuit board 10 is provided with substrate electrodes 16, 17 contacting electrodes of the battery pressed by the battery cover 3. A member for bridging outer walls of the case body 1 opposed to each other in parallel to an insertion direction of the battery from the battery insertion port is inserted and assembled from a slit 21 provided on one of the opposed outer walls, as a battery receiving member 20 receiving the battery pressed by the battery cover 3 in front of the circuit board 10.

Description

  The present invention relates to an electronic device case in which an electronic device and a battery are accommodated.

  The case of an electronic device that uses a dry battery as a power source inevitably requires a structure for replacing the battery. In general, an operation unit for operating an electronic device or a surface provided with a display unit for visual display to a user (hereinafter referred to as “front surface”) and a back surface (hereinafter referred to as this surface). Are often formed separately, and when the battery is replaced, the back surface is removed. This structure is hereinafter referred to as “half-divided structure”.

  As a modification of the halved structure, there is also known a structure in which a front surface and a back surface are connected on one side, and a battery is mounted by opening the front surface and the back surface in a hinge shape (see, for example, Patent Document 1). A structure in which a part of the back surface is removed is also known. Furthermore, like a flashlight, it has a structure in which the front and back surfaces are formed integrally and both ends are open, and one opening side (if it is a flashlight, the side of the bulb, the surface on the opening side is referred to as the “top surface” below) There is also known an electronic device case in which an electronic device is inserted and covered, and a battery is inserted and covered from the other opening side (hereinafter referred to as “bottom surface”) (for example, a patent) Reference 2).

JP 2005-135769 A Japanese Utility Model Publication No. 63-75949

  An electronic device case having a half-split structure or an electronic device case having a structure in which the front surface and the back surface are opened in a hinge shape has a large portion where the front surface and the back surface are combined, and is difficult as a case for an electronic device that requires waterproofing. Moreover, there is a possibility that the front and back surfaces may come off or open due to impact. This is a problem in terms of robustness.

  An electronic device case having an opening on the top surface or bottom surface has a small waterproof portion and is excellent in robustness. However, when the battery is inserted from the bottom and covered, the battery is pressed against the circuit board of the electronic device by a spring. At this time, if a large stress is applied to the circuit board, there is a possibility that problems such as solder removal may occur. In order to prevent a large stress from being applied to the circuit board, a room in which the circuit board is provided (hereinafter referred to as “board room”) and a room in which the battery is inserted (hereinafter referred to as “battery room”) It is necessary to partition.

  The structure for partitioning the substrate room and the battery room is necessary even in the case of a half-structure. However, in the case of a halved structure, a partition wall is integrally formed on one of the front surface and the back surface, and wiring that connects the circuit board electrode and the battery electrode is formed along the partition wall. Can do. On the other hand, in the structure in which the opening is on the top surface or the bottom surface, if the housing and the partition wall are molded integrally, it is difficult to form a wiring for connecting the circuit board and the battery.

  An object of the present invention is to solve such problems and to provide an electronic device case that is excellent in waterproofness and robustness and that is easy to manufacture and assemble.

  An electronic device case according to the present invention accommodates a circuit board of an electronic device and is inserted into a battery case and a case main body provided at one end with a battery insertion port into which a battery for supplying power to the electronic device is inserted. A battery cover that presses the battery in the direction of the circuit board to close the battery insertion port, and the circuit board is provided with a substrate electrode that contacts the battery electrode pressed by the battery cover, and is pressed by the battery cover As a battery receiving member that receives the battery in front of the circuit board, a member that bridges the outer walls of the case body that are parallel to the insertion direction of the battery from the battery insertion port is provided on one of the outer walls facing each other. It is characterized in that it is inserted through a hole formed therein and incorporated.

  It is desirable that the battery receiving member has a shape that does not energize the substrate electrode when a battery having a positive electrode and a negative electrode are inserted through the battery insertion port. Specifically, when the positive electrode of the battery inserted from the battery insertion port is in contact with the positive electrode of the substrate electrode, the battery shoulder does not contact the battery receiving member, and the negative electrode of the battery inserted from the battery insertion port. In contrast, it is desirable that a step is provided that prevents the substrate electrode from contacting the positive electrode. The battery receiving member is preferably provided with a prevention wall for preventing the positive electrode of the substrate electrode from floating.

  The battery receiving member is a plate-like member, and one or more protrusions protruding outside the surface of the plate-like member are provided on one side of the plate-like member, and one of the outer walls facing each other is As the hole, a slit into which the plate-like member is inserted is provided, and the other of the opposing outer walls is provided with an insertion hole into which one or more convex portions of the plate-like member are fitted, and the battery receiving member is It can be set as the structure which bridges between a slit and a fitting hole.

  The battery receiving member can be configured to be inserted through a hole provided in one of the outer walls facing each other through between the substrate electrode and the circuit board. In addition, the battery receiving member may be configured to be in contact with the surface of the substrate electrode on the circuit board side and to be inserted through a hole provided in one of the opposing outer walls.

  ADVANTAGE OF THE INVENTION According to this invention, there exists an effect which can provide the electronic device case which is excellent in waterproofness and robustness, and is easy to manufacture and assemble.

It is a perspective view which shows the external appearance of the electronic device case which concerns on embodiment of this invention. FIG. 2 is a perspective view showing a part of the electronic device case shown in FIG. It is a perspective view explaining insertion of the electronic device to an electronic device case. It is a perspective view explaining insertion of the battery to an electronic device case. It is a figure explaining the example of the assembly of the battery receiving member to an electronic device case, and is a perspective view which shows insertion of the battery receiving member from the back wall of an electronic device case. It is a figure explaining the example of the assembly of the battery receiving member to an electronic device case, and is a perspective view explaining the state of the battery receiving member in the front wall of an electronic device. It is a perspective view explaining the detailed structural example of a battery receiving member. It is a perspective view which shows another structural example of a battery receiving member.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an external appearance of an electronic device case according to an embodiment of the present invention. The electronic device case includes a case body 1, a top cover 2, and a battery cover 3.

  The case main body 1 has a cylindrical shape with a substantially rectangular cross section, and has a structure in which the front surface and the back surface are integrally formed and both the top surface side and the bottom surface side are open. On the front surface of the case body 1, an operation for operating a display window 4 for viewing the display unit of the electronic device housed in the case body 1 from the outside of the electronic device case and a switch provided in the electronic device. Part 5 is provided. The display window 4 and the operation unit 5 are covered with a waterproof label 6. As for the waterproof label 6, at least the part of the display window 4 is transparent.

  An electronic device is attached to the top cover 2, and the circuit board of the electronic device is accommodated in the case body 1 by attaching the top cover 2 to the case body 1. In addition, components such as light emitting elements and sensors of the electronic device are mounted inside the top cover 2 and can come into contact with the outside through a window provided on the top surface. In the figure, the top cover 2 is shown as one member for simplicity, but there are two members, a part in which an element that contacts the outside such as a light emitting element or a sensor is incorporated, and a part that covers the element in contact with the outside. Can also be configured.

  The electronic lid 3 presses a battery inserted in a battery insertion slot (see FIG. 4) provided on the bottom side of the case body 1 in the direction of the circuit board (the direction of the top cover 2). It has a structure to block. The battery lid 3 is attached to the case body 1 with screws 7. In the drawing, the bottom surface of the battery cover 3 is shown as a flat shape for simplicity, but it is desirable to have a structure that allows the head portion of the screw 7 to be operated without using a tool such as a screwdriver. For example, the screw 7 having a large head portion can be used, the head portion of the screw 7 can be pinched with fingers from the front side and the back side, and the head of the screw 7 can protrude from the bottom surface of the battery lid 3. As a result, the periphery of the head of the screw 7 of the battery cover 3 can be recessed.

  FIG. 2 is a perspective view showing a part of the electronic device case shown in FIG. The front half of the case body 1 is cut away. A circuit board 10 of an electronic device is accommodated in the case body 1.

  The circuit board 10 is attached to the top cover 2, and the circuit board 10 is accommodated in the case body 1 by attaching the top cover 2 to the case body 1. In this example, the circuit board 10 is provided with a sensor unit 11, an LCD (liquid crystal display) driving unit 12, an LCD unit 13, and a switch 14. The switch 14 can be turned on / off from the operation unit 5 via the button 15. The circuit board 10 is also provided with board electrodes 16 and 17 that contact the battery electrodes pressed by the battery lid 3. As the substrate electrodes 16 and 17, a spring formed of a metal wire such as a coil spring is used, and is directly soldered and fixed to the circuit substrate 10. In addition, a support member 18 is provided on the top cover 2 to support the circuit board 10.

  Further, the battery case member 20 that receives the battery pressed by the battery cover 3 on the front side of the circuit board 10 is provided on the case body 1 on the outer wall of the case body 1 and parallel to the battery insertion direction from the battery insertion port. A member that bridges the outer walls facing each other (in this example, the front wall and the back wall) is inserted through a slit 21 provided in one of the opposing outer walls (in this example, the back wall). The battery receiving member 20 is inserted through the gap between the substrate electrodes 16 and 17 and the circuit board 10.

  FIG. 3 is a perspective view for explaining the insertion of the electronic device into the electronic device case. Components such as light emitting elements and sensors of the electronic device are provided in the top cover 2, and a circuit board 10 for driving these components is supported by the support member 18 and attached to the top cover 2. . The circuit board 10 is accommodated in the case main body 1 by attaching the top cover 2 to the case main body 1.

  FIG. 4 is a perspective view for explaining insertion of the battery into the electronic device case. A battery insertion port 31 is provided on the bottom surface side of the case body 1. A battery 32 for supplying power to the electronic device accommodated in the case body 1 is inserted into the battery insertion port 31. The battery 32 inserted into the battery insertion port 31 is pressed by the battery lid 3 toward the top surface, that is, toward the circuit board 10. By providing the battery receiving member 20 shown in FIG. 2, it is possible to prevent a large stress from being applied to the circuit board 10 by the battery 32 pressed by the battery lid 3.

  5 and 6 are diagrams for explaining an example of assembling the battery receiving member 20 into the electronic device case. FIG. 5 is a perspective view showing insertion of the battery receiving member 20 from the back wall of the electronic device case. FIG. 6 is a perspective view illustrating a state of the battery receiving member 20 on the front wall of the electronic device.

  The battery receiving member 20 is made of a plate-like member, and one or more convex portions 22 that protrude outside the surface of the plate-like member are provided on one side of the plate-like member. A slit 21 into which a battery receiving member 20 that is a plate-like member is inserted is provided on one of the outer walls of the case body 1 facing each other, in this example, the back wall. The other of the opposing outer walls of the case body 1, in this example, the front wall, is provided with a fitting hole 23 into which one or more convex portions 22 of the battery receiving member 20 are fitted. The battery receiving member 20 passes between the substrate electrodes 16 and 17 (see FIGS. 2 and 3) and the circuit board 10 or abuts against the surface of the substrate electrodes 16 and 17 on the side of the circuit board 10 to face each other. Is inserted through a slit 21 which is a hole provided in one of the two. The battery receiving member 20 incorporated in this way bridges between the slit 21 and the insertion hole 23 to partition the inside of the case body 1 into a substrate room and a battery room. The gap between the battery receiving member 20 and the insertion hole 23 is small and can be easily waterproofed by the waterproof label 6 (FIG. 1). Further, the gap between the battery receiving member 20 and the slit 21 can be easily waterproofed by the waterproof label.

  FIG. 7 is a perspective view for explaining a detailed structural example of the battery receiving member 20.

  The battery receiving member 20 has a shape such that the circuit board 10 is not energized when a battery having a positive electrode and a negative electrode are inserted from the battery insertion port 31 (see FIG. 4). That is, the battery receiving member 20 is provided with a step between the first surface 24 and the second surface 25 on the surface on the battery receiving side. The first surface 24 is a surface with which the electrode of the battery inserted from the battery insertion port 31 comes into contact, and the battery receiving member 20 is inserted into the case body 1 to partition the inside of the case body 1 into a substrate room and a battery room. Sometimes, the substrate electrodes 16 and 17 come out to the battery room side. The second surface 25 does not contact the shoulder portion of the battery when the positive electrode of the battery inserted from the battery insertion port 31 is in contact with the positive substrate electrode 16, but is connected to the negative electrode of the battery inserted from the battery insertion port 31. On the other hand, when the negative electrode is in contact with the second surface 25, the negative electrode is prevented from contacting the substrate electrode 16.

  The battery receiving member 20 is also provided with a prevention wall 26 for preventing the positive substrate electrode 16 from floating. The prevention wall 26 prevents the positive side substrate electrode 16 from falling to the front of the drawing, that is, the battery lid 3 side. Without the prevention wall 26, the positive substrate electrode 16 may fall to the battery lid 3 side, and the step between the first surface 24 and the second surface 25 when the negative electrode side of the battery is accidentally inserted. Although the negative electrode of the battery can be received, the tilted positive-side substrate electrode 16 comes into contact with the negative electrode of the battery and does not serve to prevent erroneous insertion. By providing the prevention wall 26, such a situation can be avoided.

  FIG. 8 is a perspective view showing another structural example of the battery receiving member. In the example shown in FIGS. 2, 5, 6, and 7, the battery receiving member 20 is described as an example of a structure that is inserted from the back wall to the front wall of the case body 1 and bridges between both walls. . On the other hand, the battery receiving member 40 shown in FIG. 8 has a structure inserted from one side wall of the case body 1 toward the other side wall.

  The battery receiving member 40 is provided with a step between the first surface 41 and the second surface 42 on the surface on the battery receiving side. The first surface 41 is a surface with which the electrode of the battery inserted from the battery insertion port 31 comes into contact, and the battery receiving member 40 is inserted into the case body 1 to partition the inside of the case body 1 into a substrate room and a battery room. Sometimes, the substrate electrodes 16 and 17 come out to the battery room side. The second surface 42 does not contact the shoulder portion of the battery when the positive electrode of the battery inserted from the battery insertion port 31 is in contact with the positive substrate electrode 16, but does not contact the negative electrode of the battery inserted from the battery insertion port 31. On the other hand, when the negative electrode is in contact with the second surface 25, the negative electrode is prevented from contacting the substrate electrode 16. Further, the battery receiving member 20 is provided with a prevention wall 43 for preventing the positive substrate electrode 16 from being lifted.

  In the example shown in FIGS. 2, 5, 6, and 7, the battery receiving member 20 is inserted from the back wall of the case body 1 and bridged to the front wall of the case body 1. The battery receiving member 20 may be inserted from the front wall of the case body 1 and bridged to the back wall of the case body 1 by modifying this. Further, the battery receiving member 40 shown in FIG. 8 may be inserted from the left side instead of being inserted from the right side as viewed from the front side of the case body 1.

  In the above description, it is assumed that the case body 1, the top cover 2, and the battery cover 3 are made of plastic. When such a structural member is molded from plastic, the manufacturing cost of the mold increases if the shape becomes complicated. In addition, it is not practical to integrally form a structure such as the battery receiving member 20 or 40 inside the shape like the case body 1 because it is difficult to remove the structure from the mold. According to the embodiment of the present invention, an electronic device case excellent in waterproofness and robustness can be realized by combining members having a simple structure. Since the structure is simple, the manufacturing is easy and the mold cost can be reduced. Also, assembly is easy.

  It is also conceivable to extend the support member 18 shown in FIGS. 2 and 3 to form an L-shaped battery receiving member. However, the strength of the structure in which the support member 18 is extended along the circuit board 10 is slightly difficult, and stress is applied to the top cover 2 through the support member 18 when a battery is inserted. In contrast, a member (battery receiving member 20 or 40) that bridges the outer walls of the case main body 1 that are parallel to the battery insertion direction from the battery insertion port 31 and that faces each other is one of the outer walls facing each other. By adopting a structure that is inserted through a hole provided in and assembled, it is possible to ensure the strength and to substantially prevent the influence of the battery insertion on the substrate room.

  The electronic device housed in the case body 1 is not limited to the one provided with the light emitting element, the sensor, and the display unit, and any type of electronic device as long as it is driven by a battery. But you can. The top cover 2 may have a structure that allows the electronic device and its circuit board 10 to be taken out from the case body 1 as necessary, or a structure that cannot be removed after being attached to the case body 1. Considering the maintenance of the electronic device, the electronic device and its circuit board 10 cannot be easily taken out from the case body 1, but a structure that can be taken out using a special tool is desirable. Alternatively, the top cover 2 may be formed integrally with the case body 1 and the electronic device and its circuit board 10 may be inserted from the bottom side before the electron receiving member 20 or 40 is inserted.

  The battery used is not limited to a cylindrical battery in which the positive electrode and the negative electrode are arranged on opposite sides. A prismatic shape having both poles on the same side or other shapes can be used in the same manner by designing the shapes of the battery lid 3 and the battery insertion port 31 correspondingly.

  The shape of the case body 1 is not limited to a substantially quadrangular prism shape with rounded corners as shown in the figure, and the cylinder, the cross-sectional area or the cross-sectional shape is the top surface side and the low surface side. Various shapes are possible, such as those that change with.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Top cover 3 Battery cover 4 Display window 5 Operation part 6 Label 7 Screw 10 Circuit board 11 Sensor part 12 LCD drive part 13 LCD part 14 Switch 15 Button 16, 17 Board electrode 18 Support member 20, 40 Battery holder Member 21 Slit 22 Protruding portion 23 Insertion hole 24, 41 First surface 25, 42 Second surface 26, 42 Prevention wall 31 Battery insertion port 32 Battery

Claims (7)

A case main body that accommodates a circuit board of an electronic device and is provided with a battery insertion port at one end into which a battery for supplying power to the electronic device is inserted;
A battery lid for closing the battery insertion slot by pressing the battery inserted into the battery insertion slot in the direction of the circuit board;
With
The circuit board is provided with a substrate electrode that contacts the electrode of the battery pressed by the battery lid,
As a member that receives the battery pressed by the battery lid in front of the circuit board, a member that bridges the outer walls of the case body that are opposed to each other and parallel to the battery insertion direction from the battery insertion port, An electronic device case, wherein the electronic device case is assembled by being inserted through a hole provided in one of the opposing outer walls. The electronic device case according to claim 1,
The electronic device case, wherein the battery receiving member has a shape such that current is not supplied to the substrate electrode when a battery having a positive electrode and a negative electrode are inserted through the battery insertion port. The electronic device case according to claim 2,
When the positive electrode of the battery inserted from the battery insertion port is in contact with the positive electrode of the substrate electrode, the shoulder portion of the battery does not contact the battery receiving member, and the negative electrode of the battery inserted from the battery insertion port In contrast, the electronic device case is characterized in that a step is provided to prevent the substrate electrode from contacting the positive electrode. In the electronic device case according to claim 2 or 3,
An electronic device case, wherein the battery receiving member is provided with a prevention wall for preventing the positive electrode of the substrate electrode from being lifted. In the electronic device case according to any one of claims 1 to 4,
The battery receiving member is made of a plate-like member, and one or more protrusions protruding outside the surface of the plate-like member are provided on one side of the plate-like member,
The one of the outer walls facing each other is provided with a slit into which the plate-like member is inserted as the hole,
The other of the outer walls facing each other is provided with a fitting hole into which the one or more convex portions are fitted, respectively.
The battery receiving member bridges between the slit and the insertion hole.   6. The electronic device case according to claim 1, wherein the battery receiving member is inserted through a hole provided in one of the outer walls facing each other through between the substrate electrode and the circuit board. Electronic device case characterized by being incorporated.   6. The electronic device case according to claim 1, wherein the battery receiving member is in contact with a surface of the substrate electrode on the circuit board side and is provided in one of the outer walls facing each other. An electronic device case, wherein the electronic device case is inserted and assembled.

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