JPH0594948U - Battery power case - Google Patents

Abstract

(57) [Abstract] [Purpose] A device for closing and fastening a bottom cover in a battery power supply case in which a bottom cover that overlaps with the lower surface of the substrate is pivotally attached to a substrate of a case main body having a battery housing, and an upright position. Take care not to attach the terminals that make contact with the positive electrode on the top of the battery and the negative electrode on the bottom of the inverted battery. [Structure] A coupling device (14, 24) for rotatably integrally coupling the bottom lid to the substrate is provided between the substrate 11 and the bottom lid 20, and a terminal 40 is inserted and attached to each battery accommodating portion 12. The insertion mounting portion 15 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This device generates a spark that electrically ignites the gas burner of a water heater with a dry battery, so that it can be used as a power source case for batteries that can be incorporated into a water heater and for other purposes. Regarding the power supply case.

[0002]

[Prior Art]

 A case body, in which a cylindrical battery housing with an open bottom surface stands adjacently on the board, a bottom lid that can be fixed by stacking underneath the board of the case body, and a case lid mounted on the top surface of the bottom lid A battery power supply case that includes a contact piece that electrically connects two downward electrodes of two batteries housed in adjacent cylindrical battery housing parts is conventionally known. The main body and the bottom lid are made of plastic, and the contact piece is attached to the bottom lid by press fitting.

[0003]

[Problems to be solved by the device]

 In the conventional power supply case described above, since the bottom cover is fixed by stacking it on the lower surface of the board of the case body, a rotary knob is attached to the bottom cover, and the knob is turned in one direction so that the bottom cover overlaps with the bottom of the board. It is necessary to assemble such a knob on the bottom cover because it is designed to be closed and opened in the opposite direction to open the bottom cover to replace the battery inside the battery compartment. Also, the top wall of each battery accommodating part comes into contact with the upwardly facing electrode of the battery housed inside, and the terminal for connecting the external lead wire is caulked and attached, which is also very troublesome.

[0004]

[Means for Solving the Problems]

 In view of this, the present invention provides a case main body in which a cylindrical battery accommodating portion with an open lower surface stands adjacently on a substrate, a bottom cover that can be stacked and fixed under the base plate of the case main body, and the above-mentioned bottom cover. A battery power supply case, which is mounted on the upper surface of the battery and electrically connects two downward electrodes of two batteries housed in the adjacent cylindrical battery housing, And a connecting device for rotatably connecting the bottom lid to the substrate, and each of the battery accommodating parts is provided with a plug-in mounting part for inserting a terminal in contact with the upward electrode of the electrode and mounting it. This eliminates the labor required for assembling the conventional power supply case.

[0005]

【Example】

 In each of the illustrated embodiments, 10 is a case body integrally provided with a substrate 11 and two cylindrical battery accommodating portions 12, 12 which are adjacent to each other and have an open lower surface, and 20 is the substrate 11 It shows a bottom lid that can be stacked and fixed underneath, all of which are molded from plastic. The case main body has L-shaped bearing pieces 13 and 13 facing downward at one end of the substrate 11, and the bottom lid has a protruding portion 21 at one end into which the bearing pieces face each other, and left and right sides of the protruding portion. It has a short shaft 22 protruding into a hole formed in the bearing pieces 13 and 13. The case body and the bottom lid are pivotally attached by the shaft 22 and the hole of the bearing piece 13, and the bottom lid overlaps under the substrate 11. The bottom of the battery housing can be closed, or the lower ends of the battery housings 12, 12 can be opened apart from the bottom of the substrate. Then, low claws 23, 23 stand at both ends of the upper surface of the bottom lid which overlaps with the bottom of the substrate 11, and electrically connect the cathode and the anode of the two batteries B, B housed in the battery housing parts 12, 12. The holes 31, 31 at both ends of the metal contact piece 30 to be connected to are pressed into the claws 23, 23, and the contact piece 30 is attached to the bottom cover 20. The contact piece 30 has two raised portions 32, 32 that are bent and raised in a trapezoidal shape, and one of the raised portions 32 is used as a cathode on the bottom of a battery which is erected in one battery housing and the other. The ridge of the contacts the anode on the top of the inverted battery in the other battery compartment. The substrate 11 of the case body has a box shape having a shallow recess 11 'on the lower surface, and the claws 23 do not come into contact with the substrate even if the bottom cover 20 is placed under the substrate. Of course, the lower surface of the substrate may be flattened, and the upper surface of the bottom lid 20 having the claws 23 may be shallowly recessed.

In the power supply case of the embodiment shown in FIGS. 1 to 3, the bottom cover is openably and closably held under the board. Therefore, the locking portion 14 protruding from the other end of the board 11 and the other end of the bottom cover 20 are provided. Has a T-shaped locking piece 24 protruding from the bottom lid 20, and when the bottom lid 20 is placed under the base plate, the projection 25 provided at one end 24a of the T-shaped locking piece 24 snaps onto the locking portion 14. Engage and hold bottom lid 20 underneath the substrate. Therefore, when the other end 24b of the T-shaped locking piece is pushed in, the locking piece is elastically deformed, the protrusion 25 is disengaged from the locking portion 14, and the bottom lid is opened, so that the battery can be replaced. In this embodiment, the locking portion 14 and the locking piece 24 having the projection 25 constitute a snap-engagement type coupling device for rotatably coupling the bottom lid and the substrate.

Each battery accommodating portion 12 has a cylindrical shape whose upper part is closed by an upper wall, and has a through passage 16 penetrating in a diametrical direction under the upper wall 12 ′ as a terminal insertion mounting part 15. Guide grooves 16 ', 16' facing each other are provided in this through passage. A terminal 40 formed by press-molding a metal plate is composed of a base piece 41, a lead wire connecting portion 42 that stands up from one end of the base piece 41, and a contact portion 43 that is bent downward from the other end of the base piece and bent in a V shape. The width of the contact portion 43 is narrower than that of the contact portion 43, while the base piece 41 has a width that allows the base piece 41 to be slid and inserted into the guide grooves 16 ', 16' of the through passage 16 facing each other. The cylindrical battery accommodating portion 12 is projected from between the guide grooves 16 'and 16'. Therefore, each terminal 40 is attached to each battery accommodating portion 12 by slidably inserting the terminal base piece 41 into the guide groove 16 ', 16' from one end of the through-passage 16, and the upright in one accommodating portion. The positive electrode at the top of the cell and the cathode at the bottom of the cell inverted in the other compartment can be contacted.

In the power supply cases of the embodiments of FIGS. 4 to 6, the bottom lid is openably and closably held under the substrate. Therefore, when the bottom lid is placed on the surface on which the contact piece 30 is attached and the bottom lid is placed on the lower surface of the substrate, The substrate has a pair of upstanding check claw pieces 26, 26 that are in sliding contact with the inner surfaces of both sides of the recess 11 ′ of the substrate. The pawl portion 26a of the pawl piece 26 has an engaging hole 17 into which the pawl portion 26a snaps. Therefore, when the bottom cover is placed on the lower surface of the substrate, the claw portion 26a of the check claw piece 26 snap-engages with the engagement hole 17 so that the bottom lid remains closed and the claw portion exposed from the engagement hole 17 is retained. When is pushed inward, each check piece 26 bends inward and is disengaged from the engagement hole 17, whereby the bottom lid is opened and the batteries in the battery storage portions 12, 12 can be replaced. In this embodiment, the check claw piece 26 having the claw portion 26a and the engagement hole 17 constitute a snap engagement type coupling device for rotatably coupling the bottom lid and the substrate.

The battery accommodating portions 12 and 12 standing on the substrate 11 of this embodiment are configured as back-to-back C-shaped cylinders having a lower height than the batteries to be accommodated. A T-shaped strut 18 stands from the back-to-back portion of both C-shaped cylinders, and the tips of two horizontal arms 19 and 19 extending from the upper end of the strut slightly above the center of each C-shaped cylinder. The portion is the insertion mounting portion 15 of the terminal 40. A terminal 40 formed by press-molding a metal plate has a base piece 41 and a lead wire connecting portion 42 standing up from one end of the base piece, as in the first embodiment. At the other end of the base piece 41, a pinching piece 44 for elastically pinching the tip of the horizontal arm 19 is provided in a folded back shape. The tip of the pinching piece 44 is the center of the battery accommodating portion. A contact portion 43 that is bent in a V shape facing toward is provided in a folded shape. Therefore, the terminal 40 can be attached by clipping the tip of each horizontal arm 19 between the base piece 41 and the pressing piece 44 in a clip manner. If necessary, an upward corner 45 is formed at the boundary between the pressing piece 44 and the V-shaped contact portion 44, and a notch 46 with which the corner 45 is engaged is formed on the lower surface of each horizontal arm 19 to form the corner 45. It is advisable to position and attach the terminal to the horizontal arm by engaging the notch, and also to prevent the terminal from easily coming off even when facing the tip of the horizontal arm. In this way, the two terminals 40, 40 are mounted right above the center of the two C-shaped cylinders, which are the battery accommodating parts, so that the positive electrode at the top of the battery housed upright in one C-shaped cylinder and the other And the cathodes at the bottoms of the batteries housed upside down in the C-shaped cylinder.

The base plate 11 of the case body and the bottom cover 20 may be separately molded, and the bearing piece 13 and the shaft 22 of the protrusion 21 may be fitted and pivotally mounted to each other. With the shaft 22 fitted in the bearing piece 13, the case main body 10 and the bottom lid 20 are simultaneously molded, and the mold is slid to form a hole around the shaft 22 that is fitted with the shaft. The number of steps for assembling the bottom lid can be omitted.

In each of the illustrated embodiments, the coupling device for rotatably integrally coupling the bottom lid and the substrate has been shown as a snap-engagement type, but the coupling device is not limited to snap engagement and is integrally molded. It may be a method.

[0012]

[Effect of the device]

 According to the present invention, when the bottom lid is placed on the lower surface of the base plate of the case body, the T-shaped locking piece 24 and the locking portion 14, the check claw piece 26 and the engaging hole 17 are provided for holding the bottom lid in that state. , And the like are integrally provided between the base plate and the bottom lid, the number of steps for rotatably assembling the knob for opening and closing the bottom lid can be saved. Furthermore, the electrodes that contact the positive electrode at the top of the upright battery and the negative electrode at the bottom of the inverted battery above the battery housings may be installed by inserting them into the plug-in mounting parts provided in each battery housing. Therefore, it is possible to save the trouble of caulking and mounting. Therefore, the power supply case can be provided with excellent productivity and low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a battery case according to an embodiment of the present invention with a bottom lid open.

FIG. 2 is a plan view of a part of FIG.

FIG. 3 is a partially enlarged cross-sectional view of the battery case of FIG. 1 with a bottom lid closed.

FIG. 4 is a perspective view of the battery case according to another embodiment of the present invention with the bottom lid open.

5 is a front view of the battery case shown in FIG. 4, with a bottom cover closed, in a partly sectional view.

[Explanation of symbols]

 10 Case Main Body 11 Substrate 12 Battery Housing 13 Bearing Piece 14 Locking Part 15 Terminal Insertion Mounting Part 17 Engagement Hole 20 Bottom Wall 22 Shaft 24 T-shaped Locking Piece 26 Check Claw Piece 30 Contact Piece 40 Terminal

Claims (1)

[Scope of utility model registration request] 1. A case main body in which a cylindrical battery accommodating portion having an open lower surface stands adjacently on a substrate, a bottom cover that can be fixed by being stacked below the substrate of the case main body, and the bottom cover. A battery power supply case that is attached to the upper surface of the battery and that electrically connects two downward electrodes of two batteries housed in adjacent cylindrical battery housings, wherein the substrate and the bottom cover are provided. And a coupling device for rotatably coupling the bottom lid to the substrate, and a plug attachment portion for inserting and attaching a terminal contacting the upward electrode of the electrode to each of the battery housing portions. Power supply case for the battery.