JP3488065B2 - Battery case - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery case attached to a device such as a table 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, in a device such as a table stove where the left and right side surfaces and the back surface of the device face close to a wall or the like, it is necessary to exchange batteries from the front of the device. On the other hand, in many cases, the battery cannot be set in the horizontal direction due to an operation knob or the like on the front of the device or because the appearance is impaired. Therefore, it is desired to set the battery so that the longitudinal direction of the battery matches the longitudinal direction of the device. Therefore, after installing a battery case with a case body that can be freely inserted into and removed from the device, set the battery in the case body with the case body pulled out from the device, or replace the old battery in the case body with a new battery There is known a case in which a case body is pushed into a device. When the case body is stored in the device, the cover plate is attached to the front of the case body so that the case body and other parts of the battery case cannot be seen from the outside. The opening is closed by a plate. In such a conventional battery case, a biasing means such as a spring is provided in the case body to press the positive electrode or the negative electrode of the battery against an electrode attached to the case body. Therefore, when vibration is applied to the battery case or the battery is set obliquely in the case main body, the battery may be lifted from the case main body by the urging force of the urging means. Therefore, a case cover that covers the case body is provided, so that only a slight gap is created between the battery and the case cover in a state where the case body is stored in the device, and the battery tends to rise from the case body. The battery also prevents the battery from hitting the case cover. [0004] In the above-mentioned conventional battery case, the case body moves forward and backward within the case cover. On the other hand, it is necessary to connect an electric wire for supplying power to the device to the electrode provided on the case body. The electric wire is guided from the case body to the rear of the case cover through the inside of the case cover. Each time the case body moves in and out of the case cover, the wires are pulled inside the case cover when the case body is pulled out, and loosen inside the case cover when the case body is returned into the device. Then, the electric wire may be disconnected by being pulled, and may be wound around the case body by being loosened. [0005] In order to solve such a problem,
For example, according to Japanese Patent Application Laid-Open No. 8-2500088, a battery case in which a leaf spring-like electrode that contacts an electrode of a case main body is attached to the inside of a case cover in a state where the case main body is stored, so that an electric wire is not directly connected to the case main body. It has been known. However, in the battery case known from the publication, there is a possibility that the position of the case main body shifts or changes over time cause a problem that contact between the electrode of the case main body and the electrode of the case cover becomes poor. [0006] In view of the above problems, an object of the present invention is to provide a battery case in which an electric wire connected to a case main body is not broken and there is no possibility of winding around the case main body. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a device which uses a battery as an operating power source and which can be moved back and forth with respect to the main body through an opening provided on the surface of the main body. A case body provided with biasing means for pressing the battery pole to electrodes provided at the front end and the rear end in the forward and backward directions, and the case body is mounted inside the body of the device and is freely movably mounted. A battery case comprising a case plate and a case cover that engages the case plate from above, covers the case body, and regulates the movement of the case body in the left-right direction and the lifting of the battery from the case body. The extraction electrodes are arranged side by side with an interval between the electrodes, and the electrode at the front end is connected to the extraction electrode, and a slit-shaped opening that is long in the forward and backward directions of the case body is formed in the horizontal direction from the center line of the case cover. Shift to one side And an electrode provided at the rear end and an extraction electrode provided at the rear end and an electric wire for supplying power to the device are connected via an opening provided in the case cover. By arranging the extraction electrode in parallel with the electrode at the rear end, the two electric wires connected to the anode and the cathode of the battery are both connected to the rear end of the case body. Unless the case body is completely removed from the device, the rear end of the case body remains located in the device. On the other hand, when an electric wire is connected through a slit-shaped opening provided in the case cover, the electric wire moves as the case body advances and retreats because the opening is formed in a slit shape elongated in the direction of movement of the case body. But
It will not be pulled or slack in the case cover. By the way, if the opening is provided so as to coincide with the center line of the case cover, the battery rises upward from the case main body, and the portion that originally holds the battery is not provided by providing the opening, and the battery cannot be held down. However,
When the opening is formed so as to be deviated to one side in the left-right direction from the center line of the case cover as in the present invention, when the battery is about to rise, the electric wire is connected while leaving a portion where the battery hits and regulates the rise. Can be. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a table 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 table stove 1, and a case main body 2 of a battery case for storing a battery is stored through the opening 12. The table stove 1 is provided with a temperature sensor 13 for detecting a pot 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 thermocouple 14. The control device operates using a battery housed in the case body 2 as a power supply. Referring to FIG. 2 and FIG. 3, the battery case includes a case plate 3 attached to the main body of the table stove 1 in addition to the case main body 2, and engages 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. At the front end of the case body 2, 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. As shown in FIG. 4, the lock piece 23 is formed so as to be able to elastically swing up and down around a position away from the lock piece 23 by a predetermined distance. Therefore, when the case body 2 is further pushed in from the state shown in FIG. 3, the lock piece 23 rides on the front edge of the case plate 3,
It enters into the lock hole 31 opened 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 off the lock window 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. At the rear of the lower surface of the case body 2, a retaining piece 24 is provided in a protruding manner. The retaining piece 24 is located in the concave groove 33 formed in the case plate 3 and does not contact the case main body 3 when the case main body 2 is taken in and out. However, the locking portion 32 is formed at the front end of the concave groove 33, and when the case main body 2 is pulled out to a position where the retaining piece 24 comes into contact with the locking piece 32, the retaining piece 24 is locked. And the case main body 2 cannot be pulled out any more. Therefore, the case body 2 can be pulled out from the front of the table stove 1 to a position where the battery can be replaced, but the case body 2 cannot be further pulled out and removed from the table stove 1. As shown in FIG. 4, the retaining portion 24 is formed so as to be able to resiliently swing up and down around a position away from the retaining portion 24 by a predetermined distance. Therefore, when a serviceman or the like removes the case body 2, the top plate 15 of the table stove 1 is removed, and the tip 25 of the stopper piece 24 is pulled up from inside the table stove 1 so that the stopper piece 24 engages. Do not engage with the stop 32. A pair of electrodes 26a and 26b facing each other are attached to the case body 2. Further, a metal spring 27 is attached to the rear electrode 26b. When two batteries are stored in the case body 2 in series, the positive electrode of the battery is pushed onto the electrode 26a as shown in FIG. Contact 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 left bottom 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 in which the case cover 4 can rotate around 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, when the case cover 4 rotates about the engagement portion between the engagement hook 41 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 claws 4
3 engages with the lower surface of the case plate 3. 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,
Unless the claw 43 is artificially removed from the case plate 3, the claw 43 does not come off the case plate 3. A flange 28 is 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 urged by the spring 27, if the urging force of the spring 27 acts obliquely on the battery, there is a possibility that the battery will only float upwardly where movement is permitted. Therefore, the inner peripheral surface 48 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 inner peripheral surface 48, so that the battery can be raised. Even if it is attempted, the inner peripheral 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. In order to connect the electric wire 5, it is necessary to provide a longitudinal slit-shaped opening in the direction of movement of the case body. 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 opened at a position shifted rightward from the center line of the case cover 4. Note that the slit opening 45 is shifted to the right side in this manner.
Therefore, the extraction electrode 26c was attached so as to be located on the right side of the electrode 26b. However, the slit opening 45 may be provided so as to be shifted leftward.
c is attached so as to be located on the left side 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 table stove 1 and stored, as described above, the lock pieces 23 enter the lock holes 31 and engage with each other, but the case body 2 rattles as it is. Therefore, the pushing claw 46
Then, the rear end face of the case body 2 is urged toward the front, so that the lock piece 23 is pressed against the front edge of the lock hole 31 so as not to rattle. 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 splashes on the front surface of the table 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 fixing plate 47 completely prevents water or the like from entering. The inner peripheral 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 new battery is set in the case body 2 and the case body 2 is returned into the table stove 1, if the battery is already slightly lifted, the front end of the inner peripheral surface 48 may be It is conceivable that the battery collides and the battery case 2 cannot be pushed further. Therefore, as shown in FIG. 3, a tapered portion 48a is formed at the front end of the inner peripheral surface 48. Thus, even if the battery is slightly lifted and the case body 2 is to be returned into the table stove 1, the battery is not caught by any part of the case cover 4, and is pressed down by the tapered portion 48 a while being pressed down. It is possible to proceed to the back of the cover 4. As described above, penetration of water or the like is prevented by the fixing plate 47. The lower end of the fixing plate 47 is extended downward from that shown in FIG. 3 so that the lower end of the fixing plate 47 is substantially the same as the upper end of the inner peripheral surface 48 as shown in FIG. When the lower end of the fixing plate 47 is extended in this manner, the portion overlapping with the defense plate 29 increases, so that intrusion of water or the like can be more effectively prevented. When the lower end of the fixing plate 47 is extended as described above, the battery is hooked on the lower end of the fixing plate 47 when the case body 2 is inserted into the case cover 4 in a state where the battery is raised. The fixing plate 47 is the case cover 4
Is formed at a relatively front portion of the fixing plate 47, even if the battery is caught on the fixing plate 47, the lifting of the battery can be easily corrected. Therefore, in this case, it is not necessary to form a tapered portion 48a as shown in FIG. 3 at the front end of the inner peripheral surface 48. 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. Then, there is a possibility that the connector 51 may catch other wires and harnesses. Therefore, as shown in FIG. 7, 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. When the retaining piece 24 is formed on the bottom surface of the case body 2 as described above, the retaining piece 24 can be seen when the battery is attached or detached. Therefore, as shown in FIG. 7, a retaining piece 4a is formed on the case cover 4, and the rear wall 2a of the case body 2 is brought into contact with the retaining piece 4a so that the case body 2 cannot be pulled out from the front side. May be. In the above-described embodiment, the present invention has been described by taking a table stove as an example. However, the present invention can be applied to all other appliances using a battery as a power source, such as a cooker and a heater. As is apparent from the above description, the present invention provides a slit-shaped electrode formed on a case cover with respect to an electrode and an extraction electrode arranged side by side at the rear end of a case body. Because the wire was connected through the opening of the
In addition, the wires are not loosened or pulled in the case cover. In addition, the slit-shaped opening is shifted from the center line of the case cover to one side in the left and right direction, so the function of the case cover that prevents the battery from floating from the case body when the case body is stored in the device However, it is not damaged by providing the slit-shaped opening.

[Brief description of the drawings] FIG. 1 is a diagram 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 a battery case. FIG. 4 is a plan view showing the shape of the bottom surface of the case body. FIG. 5 is a cross-sectional view of a battery case. FIG. 6 is a view showing another embodiment of the fixing plate 47; FIG. 7 is a view showing another embodiment of the case cover 2; [Explanation of symbols] 1 Table stove 2 Case body 3 Case plate 4 Case cover 21 lid plate 26a electrode 26b electrode 26c extraction electrode

Claims (1)

(57) [Claims 1] A front end portion and a rear end portion of a device using a battery as an operating power source which are movable back and forth with respect to the body through an opening provided on the surface of the body. A case body provided with a biasing means for pressing the electrode of the battery to the electrode provided on each of the cases, a case plate mounted in the main body of the device and on which the case body is mounted to be able to move forward and backward, and And a case cover that covers the case body and restricts the movement of the case body in the left-right direction and the lifting of the battery from the case body. And the electrode at the front end is connected to the extraction electrode, and the slit-shaped opening that is long in the advancing and retreating direction of the case body is shifted to one side in the left and right direction from the center line of the case cover to the case cover. Electrode provided at the rear end And beauty extraction electrodes, battery case, characterized in that the electric wire supplying power to the device and to be connected via the opening provided in the case cover.