JP3496493B2 - Mounting structure of waterproof battery lid - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery lid mounting structure which is provided in a waterproof device and is attached / detached to / from the case of the device when the battery is replaced. The present invention relates to a battery lid mounting structure.

[0002]

2. Description of the Related Art Some portable devices used outdoors are required to operate without being affected by temperature changes and rain due to environmental changes. Such equipment is
The case is waterproof and has a waterproof structure. And if this device is battery operated and the frequency of battery replacement is high,
A detachable battery lid is provided in the battery housing portion, and this battery lid also has a structure for preventing thermal deformation and waterproofing.

FIG. 6 is a plan view showing a conventional waterproof battery lid portion, and FIG. 7 is a side sectional view of FIG. The battery lid 40 is formed in a plate shape, and a metal reinforcing plate 41 is insert-molded inside in order to prevent thermal deformation at high temperature. An engagement protrusion 41a is formed on one end of the battery lid 40 so as to project therefrom.
The case 45 can be engaged with the engaging groove 45a. The engaging protrusion 41a is formed by exposing the end portion of the reinforcing plate 41. Further, the other end of the battery lid 40 has an E
A mounting screw 46, which is retained by a ring 46a, is rotatably provided.

Further, a groove 42 is formed on the battery lid 40 along the entire circumference in contact with the joint surface 45b of the case 45, and an O-ring 43 is formed.
Is attached. The attachment state of the battery lid 40 having the above-described configuration will be described. The engagement protrusion 41a at one end of the battery lid 40 is obliquely inserted into the engagement groove 45a portion of the case 45 and hooked to the attachment protrusion 41a at the other end. The screw 46 is screwed in and fixed. When fixed, the O-ring 43 of the battery lid 40 is pressed against the joint surface 45b of the case 45 to waterproof the inside of the battery.

[0005]

However, the battery lid 4 described above is used.
The structure of 0 has the following problems. 1. Battery lid 40
The number of parts of itself is large and the number of assembling steps is high, which is expensive. 2. A tool (usually replaced with a coin or the like) is required to operate the attachment screw 46 when the battery lid 40 is attached or detached. 3. Since the metal reinforcing plate 41 is used, the battery lid 40 and the entire device become heavy.

The present invention has been made in order to solve the above problems, and relates to a mounting structure of a waterproof battery lid which can waterproof the inside with a simple structure.

[0007]

In order to solve the above-mentioned problems, the mounting structure of the waterproof battery lid of the present invention is, as described in claim 1, a waterproof battery which is detachable from a device and waterproofs the inside. In the lid mounting structure, a case 1 of the device has a battery housing portion 1a for housing a battery for operating the device, and a peripheral wall portion 3 having a predetermined height continuous to the outer periphery of the battery housing portion 1a.
The battery lid 2 is formed in a substantially box shape in which one surface facing the peripheral wall portion 3 is opened and a frame body 7 is erected on the outer peripheral edge. The case 1 facing the portion is provided with an engaging groove 10 or an engaging piece 8 that engages with each other, and the other end of the battery lid 2 and the case 1 facing the other end are On one side, an engaging piece 11 is provided, and on the other side, an engaging claw 9 that is engageable with the engaging piece 11 and bends by a predetermined amount when the battery cover 2 is attached or detached is provided. The case 1 is provided on the inner surface of the battery cover 2. The outer peripheral surface 3a of the peripheral wall 3 is provided with a side wall surface 13a having a predetermined height, which is elastically in contact with the outer peripheral surface 3a.

Further, as described in claim 2, a peripheral wall portion 3 provided on the case 1 side and an outer edge surface 3a of the peripheral wall portion 3 are provided.
The side wall surface 13a of the waterproof elastic member 13 that comes into contact with is also provided with a tapered surface having a predetermined inclination in the height direction on one side and a joining projection 13c closely contacting the taper on the other side. Good.

Further, as described in claim 3, a locking groove 2 d penetrating therethrough is formed in the battery lid 2, and the waterproof elastic member 13 has a protrusion having a shape corresponding to the locking groove 2 d. 13a may be formed so as to project, and the projecting portion 13a may be provided so as to be locked in the locking groove 2d and project outward by a predetermined amount. Moreover, as described in claim 4,
The waterproof elastic member is provided on the top of the peripheral wall of the case.
It is also possible to have a configuration in which a stepped portion that makes surface contact with the entire circumference is formed.
Yes.

The battery lid 2 has an engaging piece 8 at one end, and a case 1
When the other end side is pushed while being engaged with the engaging groove 10 of, the engaging claw 9 provided at the other end is engaged and held by the engaging piece 11 of the case 1. In this engaged state, the side wall surface 13a of the waterproof elastic member 13 provided inside the battery lid 2
Makes elastic contact with the outer edge surface 3a of the peripheral wall portion 3 of the case 1 to cover the battery housing portion 1a and waterproof the inside. Further, the battery cover 2 is removed from the case 1 by operating the engagement claw 9 of the battery cover 2 to release the engagement with the engagement piece 11.

[0011]

1 is a plan view showing an embodiment of a waterproof battery lid mounting structure according to the present invention, and FIG. 2 is a line A- of FIG.
It is an A line sectional view. Both the case 1 and the battery lid 2 described below are formed by plastic molding. As shown in the figure, a battery housing portion 1a for housing a battery for operating the device is provided on the lower portion of the back surface of the case 1 of the portable device. A battery lid 2 is detachably provided in the battery housing portion 1a. The inside of the case 1 has a waterproof structure in advance, except for the battery housing portion 1a which is opened with the battery lid 2 removed.

The battery accommodating portion 1a of the case 1 has a peripheral wall portion 3 projectingly formed at a predetermined height. This height is about the width of the battery housed inside, and is formed in a substantially square shape that is continuous with the entire outer circumference of the battery housed in plan view. Inside the peripheral wall portion 3, a contact member 4 that comes into contact with a terminal of the battery is provided and electrically connected to the wiring board 5. The outer edge surface 3a of the peripheral wall portion 3 is formed in a tapered shape in which the base end is slightly wider than the opening end and is inclined at a slight angle. A tapered guide surface 3aa inclined at a slightly larger angle is formed at the opening end of the outer edge surface 3a.

On the other hand, on the battery lid 2, a frame 7 having a predetermined height at four edges so as to cover the battery accommodating portion 1a and continuously extending over the entire circumference at the outer peripheral position of the peripheral wall 3 is formed. ing. The battery lid 2 is formed in a substantially box shape with one surface opened, and the frame body 7 can reduce the weight of the battery lid 2 itself, have a predetermined rigidity, and prevent deformation at high temperatures. The battery lid 2 is provided with an engaging piece 8 at one end and an engaging claw 9 at the other end, and by engaging these with the case 1, the attached state of the battery lid 2 is maintained. To be done.

An engagement piece 8 provided at one end of the battery lid 2.
Is bent at a right angle from the end of the frame body 7 over the entire circumference. Correspondingly, an engaging groove 10 is formed in the case 1 at a position where the engaging piece 8 engages. The engaging claw 9 provided at the other end of the battery lid 2 is bent in a substantially U shape, and the end 9
By pushing a inward, the end 9a is bent around the bent portion in the center. A step-like engagement groove 9b that engages with the engagement piece 11 provided on the case 1 is formed in the end portion 9a. In the state where the battery lid 2 is attached to the case 1 as shown in the drawing, the end portion 9a of the engaging claw 9 is configured to have a height protruding from the surface position of the engaging piece 11 on the case 1 side by a predetermined amount. The end portion 9a can be operated by hooking a finger or the like.

A waterproof elastic member 13 is attached to the entire inner surface of the battery lid 2. The waterproof elastic member 13 is made of a material having a predetermined elastic force such as rubber. The waterproof elastic member 13 has a plurality of protrusions 13a protrudingly formed on a plane facing the battery lid 2, and the protrusions 13a are inserted into a locking groove 2d formed through the battery lid 2 to form a plurality of protrusions 13a. Are projecting from the outer surface of the battery lid 2 by a predetermined amount and are located on the same plane position. Further, a stepped portion 13aa is formed at the end of the protrusion 13a to prevent the protrusion 13a from being pulled out, so that the attachment state of the waterproof elastic member 13 to the battery lid 2 is maintained.

FIG. 3 is a partially enlarged sectional view showing the waterproof structure. In this figure, a joined state of the battery housing portion 1a of the case 1 and the battery lid 2 is shown. The inner peripheral surface of the waterproof elastic member 13 covers the opening portion of the peripheral wall portion 3 forming the battery housing portion 1a of the case 1 so as to cover the opening portion to waterproof the inside of the battery housing portion 1a. The waterproof elastic member 13 has a side wall surface 13b having a predetermined height along the inner circumference of the frame body 7 of the battery lid 2, and the inner surface of the side wall surface 13b is the outer edge surface 3a of the peripheral wall portion 3.
To join.

Around the entire circumference of the side wall surface 13b, there is provided a joining projection 13c which projects a predetermined amount in the direction of the peripheral wall portion 3. The inner diameter of the joining projection 13c is formed smaller than the outer diameter of the outer edge surface 3a of the peripheral wall portion 3, and the outer peripheral surface 3a of the peripheral wall portion 3a is formed.
On the other hand, the joining projection 13c is in close contact with the above.
A wide tapered surface 13d is formed on the side wall surface 13b toward the opening end. Furthermore, the inner surface portion 13e of the waterproof elastic member 13 is provided on the entire circumference of the top portion 3ab of the peripheral wall portion 3.
The stepped portion 13eb provided at the surface contact.

Next, the attaching / detaching operation of the battery lid 2 having the above-mentioned structure and the waterproof function will be described. FIG. 4 is a diagram showing an attachment / detachment operation of the battery lid 2. As shown in the drawing, when attaching the battery lid 2 to the case 1, after the engaging piece 8 at one end of the battery lid 2 is obliquely hooked in the engaging groove 10 portion of the case 1,
It is sufficient to push the other end toward the case 1. At this time, a tapered surface 13d is formed at the opening end of the side wall surface 13b of the waterproof elastic member 13 provided on the battery lid 2, and a tapered guide surface 3aa is formed at the opening end of the peripheral wall portion 3 of the case 1.
Is formed so that the battery lid 2 can be easily attached. Further, since the outer edge surface 3a of the peripheral wall portion 3 itself is formed in a tapered shape, the joining projections 13c of the waterproof elastic member 13 are gradually brought into close contact with each other during mounting.

When the other end of the battery cover 2 is pushed, the engaging claw 9 at the other end of the battery cover 2 flexes and passes through the engaging piece 11 as shown in FIG. With the engagement groove 9b of the engagement claw 9 engaged with the piece 11, the engagement claw 9 returns from the bent state. As a result, the attachment state of the battery lid 2 to the case 1 is maintained by the engagement groove 9b of the engagement claw 9, and the battery lid 2 can be retained.

In this attached state, the waterproof elastic member 13 provided on the battery lid 2 covers the battery housing portion 1a,
The battery mounted in the battery housing portion 1a is waterproofed. That is, the battery accommodating portion 1a has a peripheral wall portion 3 provided upright along the outer periphery of the accommodated battery, and the waterproof elastic member 13 has a side wall surface 13b in contact with the outer edge surface 3a of the peripheral wall portion 3. Therefore, the inside of the battery housing portion 1a is waterproofed by coming into contact with each other in a tubular shape. Further, on the entire circumference of the top portion 3ab of the peripheral wall portion 3, a step portion 13eb provided on the flat surface portion 13e of the waterproof elastic member 13 is provided.
Make surface contact with each other to waterproof the inside of the battery housing portion 1a. further,
The waterproof elastic member 13 is provided with a joining projection 13c at a portion in contact with the outer edge surface 3a of the peripheral wall portion 3, and the joining projection 13c is in close contact with the outer edge surface 3a. .

The battery cover 2 can be removed by performing the reverse operation of the above-mentioned mounting. That is, the operation is performed by holding both sides of the frame body 7 of the battery lid 2 and hooking the end portion 9a of the engaging claw 9 with a finger to bend it. Then, with the engagement groove 9b of the engagement claw 9 disengaged from the engagement piece 11, as shown in FIG.
And incline the other end of the. After that, the engagement piece 8 at one end of the battery lid 2 may be removed from the engagement groove 10 portion. still,
FIG. 5 is a diagram showing a state in which the battery lid 2 is removed from the case 1.

As described above, the battery lid 2 having the above-described structure can be mounted by hooking one end portion to the case 1 and then pushing the other end portion, and can be detached by the reverse operation, so that the structure can be simplified. Like the case 1, the battery lid 2 main body is formed by molding a resin material such as plastic and the like, and is attached with the waterproof elastic member 13. Therefore, maintenance such as manufacturing, assembling and replacement can be facilitated.

By the way, since the protruding portion 13a of the waterproof elastic member 13 is projected on the surface of the battery lid 2 having the above-mentioned structure, the battery lid 2 is attached to the case 1 and is used when the portable device is used. With this, the projection 13a comes into contact with the operator's hand to obtain a non-slip effect, and it is possible to prevent the mobile device from falling during operation. Further, since the battery lid 2 is provided on the back surface of the mobile device, when the mobile device is placed on a desk or the like, the projection 13a of the waterproof elastic member 13 is in contact with the desk on the back surface side of the mobile device. The deviation can be prevented. Further, even when the battery cover 2 is removed from the case 1 and placed on a desk, the protrusion 13a prevents the battery cover 2 itself from slipping. Thus, the waterproof elastic member 13
Has not only a waterproof function but also an anti-slip function when operating a portable device, but since the protrusion 13a protruding from the surface of the battery lid 2 is also integrally formed, the waterproof elastic member 13 Maintenance is possible only by replacing.

Further, in the above structure, the peripheral wall portion 3 on the case 1 side is provided with the tapered outer edge surface 3a, and the waterproof elastic member 1 is provided.
The structure is such that the joining projection 13c that is in contact with the outer edge surface 3a is provided on the 3 side, but conversely, the projection is provided on the case 1 side, and the tapered surface is provided on the waterproof elastic member 13 side to bring them into close contact with each other. Also, even in this configuration, as in the above embodiment, the mounting can be easily performed and the waterproof function can be obtained. Further, in the above configuration, the engagement piece 8 of the battery lid 2 engages with the engagement groove 10 at one end of the case 1, and the engagement piece 11 of the other end of the case 1 engages with the battery lid 2. Although the claws 9 are configured to engage with each other, they may be provided in reverse. That is, an engaging piece is provided on one end of the case 1 so that the engaging groove of the battery lid 2 is engaged, or an engaging claw is provided on the other end of the case 1 to engage the engaging piece on the battery lid 2. May be provided.

[0025]

According to the present invention, the battery lid which is attachable to and detachable from the battery accommodating portion has a simple structure including only the battery lid and the waterproof elastic member. It can be done easily and cost can be reduced. In addition, the battery lid itself is provided with a frame body around the entire circumference along the outer edge, so that it is possible to reduce the weight and prevent deformation at high temperature. When the battery lid is attached to the case, the side wall surface of the waterproof elastic member provided on the battery lid is in contact with the outer edge surface of the peripheral wall portion erected along the outer circumference of the battery housing portion of the case. Since the accommodating portion is covered so as to be covered, the waterproofness of the battery accommodating portion can be enhanced. Also, the battery lid can be easily attached and detached without using a tool. In particular, as in claim 2,
If the outer peripheral surface of the peripheral wall portion of the case is tapered and the joint projection is provided on the side wall surface of the waterproof elastic member, the waterproof property can be further improved. Further, as described in claim 3, if a part of the waterproof elastic member is projected from the surface of the battery lid, it is possible to obtain a non-slip action without increasing the number of parts. . This non-slip function is achieved by placing the battery lid removed from the case, placing the device with the battery lid attached, and when the case is a portable device. Can be obtained in any of the states where the is being held.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a waterproof battery lid mounting structure of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a partially enlarged sectional view of the structure.

FIG. 4 is a cross-sectional view showing an attached state of a battery lid.

FIG. 5 is a partial cross-sectional view showing a detached state of the battery lid.

FIG. 6 is a plan view showing the structure of a conventional waterproof battery lid.

7 is a sectional view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Case, 1a ... Battery accommodating part, 2 ... Battery lid, 3 ... Peripheral wall part, 3a ... Outer edge surface, 7 ... Frame body, 8 ... Engaging piece, 9 ... Engaging claw, 9b ... Engaging groove, 10 ... Engaging groove, 11 ... Engaging piece, 13
... waterproof elastic member, 13a ... projection, 13c ... joining projection, 13d ... tapered surface.

Claims (4)

(57) [Claims] 1. A structure for mounting a waterproof battery lid which is detachable from a device and waterproofs the inside thereof, wherein the case of the device has a battery housing part for housing a battery for operating the device. A peripheral wall portion having a predetermined height is provided continuously on the outer periphery of the battery lid, and the battery lid is formed in a substantially box shape in which one surface facing the peripheral wall portion is opened and a frame body is erected on an outer peripheral edge of the battery lid. One end and the case facing the one end are provided with engaging grooves or engaging pieces that engage with each other, and the other end of the battery lid and the case facing the other end are provided. Is provided with an engagement piece on one side and an engagement claw on the other side that is engageable with the engagement piece and bends by a predetermined amount when the battery lid is attached or detached. A waterproof elastic member for forming a side wall surface of a predetermined height that elastically contacts the outer edge surface to wrap and waterproof the battery accommodating portion is provided. Mounting structure of the waterproof type battery lid, characterized in that eclipse the. 2. A peripheral wall portion provided on the case side and a side wall surface of the waterproof elastic member that comes into contact with an outer edge surface of the peripheral wall portion have one tapered surface having a predetermined inclination in a height direction. The waterproof battery lid mounting structure according to claim 1, wherein the other side is provided with a joining projection that is in close contact with the taper. 3. An engaging groove penetrating through the battery lid is formed, and a protrusion having a shape corresponding to the engaging groove is formed on the waterproof elastic member so that the protruding portion has the engaging groove. The waterproof battery lid mounting structure according to claim 1, wherein the waterproof battery lid mounting structure is provided so as to be locked to the outside and to project to a predetermined amount outside. 4. The waterproof elastic member is made of the case.
A step portion is formed in surface contact with the entire circumference of the top of the peripheral wall portion.
The mounting structure for the waterproof battery lid according to claim 1, wherein
Structure.