JP3527088B2 - Battery case - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery case which is attached to a device such as a gas stove using a battery as an operating power source. 2. Description of the Related Art It is necessary to attach a battery case for accommodating a battery to an apparatus using a battery as an operation power source. For example, a gas stove is provided with a case body that can move forward and backward with respect to the gas stove while holding a battery. In the case body, a plate-like or linear electrode for connecting an electrode of the battery and an electric wire for guiding electric power to the outside is attached. [0003] In the above-mentioned conventional battery case, the electrodes mounted in the case body are not covered with an insulating material. On the other hand, when the case main body is pulled out due to battery replacement or the like, liquid such as water may enter the case main body. If the liquid has conductivity like water, there is a risk that the positive and negative electrodes mounted in the case main body may leak through the liquid. If such a leakage occurs, the life of the battery is extremely shortened, which is not desirable. [0004] In view of the above problems, an object of the present invention is to provide a battery case in which a leakage of electric current does not occur between electrodes attached to a case main body even when a liquid such as water enters the case main body. [0005] In order to solve the above-mentioned problems, the present invention provides a battery case having a case body which can move forward and backward while holding a battery with respect to a body of an apparatus using a battery as an operation power source. , A front electrode provided at the front of the case body
And an extraction electrode provided at the rear, and electrically connect these two electrodes.
The connecting part to be connected is integrally formed and installed in the case body.
With kicking, characterized by being formed through a drain hole penetrating the bottom portion to the bottom portion of the lower pond <br/> over scan body than the position of the lower edge of each electrode and the connecting portion. Even if a liquid such as water enters the case body , the liquid is discharged from a drain hole penetrating through the bottom of the case body and does not accumulate in the case body. Subordinate
Between the electrodes provided in the case body via the connection part.
There will be no short circuit. Referring to FIG. 1, reference numeral 1 denotes a gas stove, which is a device using a battery as an operating power source. An opening 12 is formed in a front panel 11 of the gas stove 1, and a case main body 2 of a battery case for housing a battery is stored through the opening 12. The gas stove 1 is provided with a temperature sensor 13 for detecting a pan bottom temperature and a thermocouple 14 for detecting ignition and misfire.
And a control device (not shown) for controlling the open / close state of an electromagnetic safety valve (not shown) based on a detection signal from the controller. The control device and the ignition device (not shown) operate using a battery housed in the case body 2 as a power supply. Referring to FIGS. 2 and 3, the battery case is provided with a case plate 3 attached to the main body of the gas stove 1 in addition to the case main body 2, and is engaged with the case plate 3 from above. And a case cover 4 that covers the main body 2 from above and restricts movement of the case main body 2 in the left-right direction and prevents the battery from floating from the case main body 2. The front end of the case body 2 has the opening 1
A cover plate 21 for closing the cover 2 is integrally attached. A window hole 21a is formed in the upper part of the cover plate 21, and the lever piece 22 is moved from the rear to the front through the window hole 21a.
Is protruding. The lever piece 22 is connected to a lock piece 23. The lock piece 23 is formed so as to be capable of elastically swinging up and down around a position spaced a predetermined distance rearward from the lock piece 23. Therefore, when the case body 2 is further pushed in from the state shown in FIG. 3, the lock pieces 23 ride on the front edge of the case plate 3 and then enter the lock holes 31 formed in the case plate 3. Then, the lock piece 23 engages with the front edge of the lock hole 31 so that the case body 2 cannot be pulled out forward. When the lever piece 22 is pulled up in this state, the lock piece 23 connected to the lever piece 22 is simultaneously pulled up and comes out of the lock hole 31.
Then, the lock piece 23 does not engage with the lock hole 31 and the case body 2 can be pulled out forward as it is. On the bottom surface of the case body 2, there is formed a slope 24 which is inclined inward from left and right inward with respect to the insertion and removal direction of the case body 2. And left and right slope 2
4, a plurality of drainage holes 25 penetrating the bottom surface of the case main body 2 are formed in the lowest portion (bottom portion) 24 a of the bottom surface of the case main body 2. The bottom 24a is inclined downward in the longitudinal direction toward the drain hole 25,
Flowing down the center along the left and right slopes 24 water Ru is discharged from the drain hole 25 further divided into the front-rear direction. On the upper surface of the case plate 3, a longitudinal groove 33 is formed in a longitudinal direction so as to be located below each of the drain holes 25. The concave groove 33 is formed so that the depth increases from the rear end side to the front end side, and an opening 32 is formed in the front end portion. Therefore, even if a liquid such as water enters the case main body 2, the liquid does not pass through the drain hole 25 and is discharged from the case main body 2 and does not accumulate in the case main body 2. Further, the liquid discharged from the drain hole 25 flows down into the concave groove 33 and the opening 32
Drained from By the way, the position of the bottom portion 24a is set to a position lower than the position of the lower edge of any of the electrodes 26a and 26b, the extraction electrode 26c, and the connection portion 26d, before the water or the like is discharged from the drain hole 25. However, no electric leakage occurs between the electrodes 26a and 26b via water or the like. A pair of electrodes 26a and 26b facing each other are attached to the case body 2. A metal spring 27 is attached to the rear electrode 26b, and two batteries are stored in the case main body 2 in series.
At this time , the positive electrode of the battery is pressed against the electrode 26a as shown in FIG. An extraction electrode 26c was attached at a predetermined interval beside the rear electrode 26b. Then, the electrode 26a and the extraction electrode 26c were electrically connected via the connection portion 26d. The electrode 26a, the extraction electrode 26c, and the connection portion 26d
And are integrally formed. Referring to FIG. 5, a pair of front and rear engagement hooks 41 project from the bottom left side of case cover 4, and the engagement hooks 41 are positioned above window holes 34 formed in case plate 3. Inserted from. Then, the case cover 4 is in a state where it can rotate clockwise as viewed from the front centering on the engagement portion between the engagement hook 41 and the window hole 34. On the other hand, a pair of front and rear projections 42 is provided on the right bottom of the case cover 4. Similarly, a pair of front and rear claws 43 is formed on the outer side surface of the right bottom side so as to be elastically deformable outward. On the other hand, the case plate 3 has a window hole 35 into which the projection 42 is inserted and a notch 36 into which the claw 43 is inserted. Therefore, the case cover 4 is
When the rotation is made about the engagement portion between the hole and the window hole 34, the projection 42 is first inserted into the window hole 35, and then the claw 43 enters the notch 36, and the claw 43 is a locking portion. Case plate 3
Engages the lower surface of. Then, the case cover 4 is firmly engaged with the case plate 3 and does not come off. However, when the right side wall of the case cover 4 is pushed outward, the claw 43 moves outward because the claw 43 is integrally formed on the right side wall, and the engagement of the claw 43 with the case plate 3 is released. There is a risk. For example, when the case main body 2 is pushed to the right while the case main body 2 is inserted approximately half into the case cover 4, the case main body 2 is pushed rightward to the right wall of the case cover 4 via the case main body 2. Force acts. However, in the present embodiment, since the projection 42 is inserted into the window hole 35, the projection 42 is engaged with the window hole 35 even when a force is applied to push the right side wall toward the right side. The right side wall does not move outward. Therefore, the claw 43 is artificially
The claw 43 does not come off the case plate 3 unless the work is taken off the case plate 3. However, the claw 43 is shown in FIG.
Also, as shown in FIG. 5, the base of the claw 43 is formed by applying a force acting outward from the lower side of the case plate 3 to the tip of the claw 43 since the case cover 4 is formed in a leg shape from the side surface. And the claw 43 can be removed from the case plate 3. [0013] Flanges 28 are formed on both sides of the case body 2. A guide portion 44 is formed on the inner peripheral surface of the case cover 4 so as to face the flange portion 28 from the left and right sides and from above with a small gap. Therefore, when the case body 2 is taken in and out, the case body 2 slides on the case plate 3 in a state where the movement in the left-right direction and the up-down direction is restricted by the guide portion 44. Since the battery in the case body 2 is biased by the spring 27, if the biasing force of the spring 27 acts obliquely on the battery, there is a possibility that the battery will float upwardly, which allows only movement. Therefore, the ceiling surface 48, which is the inner peripheral surface of the case cover 4, is formed into a cylindrical shape in accordance with the shape of the battery so that only a small gap is formed between the battery and the ceiling surface 48, and Even if the battery is going to float, the ceiling surface 48 prevents the battery from rising. On the other hand, it is necessary to connect the electric wire 5 for supplying power to a control device (not shown) to the electrode 26b and the extraction electrode 26c. The electric wire 5
It is necessary to provide a longitudinal slit-shaped opening in the direction of movement of the case body in order to connect the two. However, when the opening is formed on the center line of the case cover 4, when the battery rises from the case main body, the portion immediately above the battery that most effectively prevents the battery from rising is removed because of the slit-shaped opening. Therefore, in the present embodiment, the slit opening 45 is formed at a position deviated rightward from the center line of the case cover 4. Since the slit opening 45 is provided so as to be deflected to the right side in this manner, the extraction electrode 26c is
It was attached to be located on the right side of. However, the slit opening 45 may be provided so as to be deviated to the left, and in this case, the extraction electrode 26c is attached so as to be located on the left of the electrode 26b. A push claw 46 which is elastically deformable in the front-rear direction is formed on the inner wall of the case cover 4. When the case body 2 is pushed into the gas stove 1 and retracted, the lock pieces 23 enter and engage with the lock holes 31 as described above, but the case body 2 rattles as it is. Therefore, the rear end face of the case body 2 is urged toward the front by the push claws 46 so that the lock pieces 23 are pressed against the front edge of the lock holes 31 to prevent rattling. As described above, the cover plate 21 is provided with the window hole 21a through which the lever piece 22 is inserted. It is conceivable that water or the like may splash on the front surface of the gas stove 1. At this time, if water or the like enters the inside of the battery case through the window hole 21a, it may cause a short circuit or the like, which is not desirable. In view of this, a fixing plate 47 covering the entire width in the left-right direction is provided in the upper part of the mouth of the case cover 4 in a hanging manner, and a protection plate 29 covering the entire width in the left-right direction is also provided on the case body 2. When the case body 2 is pushed into the storage position, the fixing plate 4
The protection plate 29 is formed so as to lightly contact the front surface of the nozzle 7 or to face it with a small gap. With this configuration, even if water or the like enters through the window hole 21a, the protection plate 29 prevents the water or the like from entering any further. Further, even if water or the like tries to pass over the protection plate 29, the permeation of water or the like is prevented by the fixing plate 47. The ceiling surface 48 of the case cover 4 is close to the battery and prevents the battery from floating as described above. However, when the case body 2 is pulled out and the case body 2 is returned to the gas stove 1 with the new battery set in the case body 2 and the batteries are already slightly lifted up, the battery is attached to the front end of the ceiling surface 48. The battery case 2 may not be pushed further. Therefore, as shown in FIG. 3, a tapered inclined surface 48a is formed at the front end of the ceiling surface 48. Thus, even if the battery is slightly lifted and the case body 2 is to be returned into the gas stove 1, the battery is not caught by any part of the case cover 4 and is pushed down by the inclined surface 48 a while being pressed down by the inclined surface 48 a. It is possible to proceed to the back of the cover 4. Incidentally, a rib 45a is provided upright on one side edge of the slit opening 45. In the above embodiment, since the ribs 45a are formed to increase the mechanical strength of the case cover 4, the height of the ribs 45a may be several mm. On the other hand, if the connector 51 for connecting the electric wire 5 to the electrode 26a and the extraction electrode 26c projects above the rib 45a, the connector 51
Moves while projecting above the rib 45a,
There is a possibility that the connector 51 may catch other wires and harnesses. Therefore, as shown in FIG. 6, it is desirable that the height of the rib 45a be about 20 mm so that the connector 51 is hidden by the rib 45a. In addition, even if the case main body 2 is put in and out while the electric wire 5 connected to the connector 51 protrudes from the rib 45a, the electric wire 5 is easily bent, so that there is no problem that the electric wire 5 is hooked on another electric wire or harness. By the way, when the case main body 2 is constructed so that it can be completely removed from the gas stove 1 when the case main body 2 is pulled out forward, the electric wire 5 is pulled and the electric wire 5 is disconnected or the contact at the connector 51 is made. Failure may occur. Therefore, a retaining piece 4a is formed on the case cover 4 as shown in FIG.
The case body 2 is brought into contact with the retaining piece 4a.
Can not be pulled out from the front side. In the above-described embodiment, the hook 43 is engaged with the lower surface of the case plate 3. However, an opening through which the hook 43 enters the bent piece around the case plate 3 is provided. You may make it engage. In the above embodiment, the projection 42 is provided so as to project downward, and the projection 42 is inserted into the window hole 35 formed in the case plate 3.
Is inserted to restrict the movement of the claw 43.
The movement of the claw 43 is limited by providing a protrusion that protrudes upward on the case plate and attaching the horizontally projecting protrusion to the protrusion from the inside in the left-right direction with the case cover 4 attached to the case plate 3. Can also. In the above embodiment, the present invention has been described by taking a gas stove as an example. However, the present invention can be applied to all appliances using a battery as a power source, such as other cookers and heaters. As is apparent from the above description, in the present invention, since a drain hole penetrating the bottom of the case body is provided, a liquid such as water should Even if it enters, no electric leakage occurs in the case body, and it is possible to prevent the life of the battery from being shortened due to the electric leakage.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a configuration of an embodiment of the present invention. FIG. 2 is an exploded perspective view of a battery case. FIG. 3 is a longitudinal sectional view of the battery case. FIG. FIG. 5 is a plan view showing the shape of the bottom surface. FIG. 5 is a cross-sectional view of the battery case. FIG. 6 is a view showing another shape of the case cover. [Description of References] 1 Gas stove 2 Case body 3 Case plate 4 Case cover 24a 26a Electrode 26b Electrode 26c Extraction electrode 26d Connection

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-9-180693 (JP, A) JP-A-9-190808 (JP, A) JP-A-8-250088 (JP, A) JP-A-6-208 349464 (JP, A) JP-A-7-223499 (JP, A) JP-A 62-66169 (JP, U) JP-A 62-65344 (JP, U) JP-A 57-98676 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01M 2/10 F23Q 3/00 101

Claims (1)

(57) [Claim 1] A battery case having a case body which can move forward and backward while holding a battery with respect to a body of an apparatus using a battery as an operating power source , provided at a front portion of the case body. Front part
Pole, the extraction electrode provided at the rear, and electrical connection between these electrodes.
The connection part to be connected to the
Provided with, have lower than the position of the lower edge of each electrode and the connecting portion
Battery case, characterized in that it has penetrated a drain hole penetrating the bottom portion to the bottom portion of the to case body.