JPH0411331Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a battery case that replaceably houses a primary battery used as a power source for a portable electronic device.

<Prior Art> Since primary batteries are disposable, the battery case must have a structure that allows anyone to replace the batteries. However, in portable electronic devices, the battery case strongly holds the battery so that it does not wobble while being carried, so strong force is required to replace the battery. Furthermore, since portable electronic devices use multiple batteries, when replacing batteries, old and new batteries may be mixed together, resulting in confusion.

<Purpose of the invention> The invention facilitates the work of removing batteries from the battery case and the work of storing the batteries, and also prevents old and new batteries from getting mixed up when replacing batteries.

<Embodiment> As shown in FIG. 1, an electric megaphone consists of a horn part 1 containing a horn speaker 1a and an amplifier board 1b, a handle part 2, a battery cover 3, and a battery case part 4.

A notch 6 is formed in the axial direction on the rear lower side of the horn portion 1, and fitting protrusions 7a and 7b are formed on both side edges of this notch. Grooves 8a and 8b are formed on both sides of the handle portion 2, facing the protrusions. Rear edge 9a of horn part 1 and handle part 2
The rear edges 9b are aligned on the same plane, and both rear edges fit into the recesses 38 of the second member 31 and are fixed by screws 40. Partition wall 3 of second member 31
A screw 39 is formed around the outer periphery of 3. The battery cover 3 has a screw 10 that fits into the screw 39.

An electric megaphone having this structure has a handle part 2 with a horn part 1, a groove 8a in protrusions 7a and 7b,
8b and slide together while simultaneously engaging the battery case part 4 and fixing the battery case part 4 and the handle part 2 to the horn part 1 with screws 40. After that, the battery cover 3 is placed over the battery case part 4, and the screws 39 and 10 are tightened to assemble the electric megaphone.

As shown in FIGS. 3 to 5, the above-mentioned battery case portion 4 has a first member 1 in contact with the positive electrode side of the primary battery.
1 and a second member 31 in contact with the negative pole side,
The battery case portion 4 is formed into a substantially cylindrical shape so that eight batteries are arranged on the same circumference.

The first member 11 includes a substantially cylindrical vertical wall 12 that runs in the longitudinal direction of the AA battery, a horizontal wall 13 that contacts the + pole of the battery, and covers about 1/5 of the battery's length near the + pole. , partition wall 1 in which eight batteries are arranged on the same circumference
4. The partition wall 14 exists only between each battery,
The outer periphery of the battery case is open to allow batteries to be inserted and removed. One end of the lead electrode 16 is connected to the side wall 1
3 and fixed therein, passes through the through hole 15 of the member 11, and connects to the negative pole of an adjacent battery, thereby connecting each battery in series.

The second member 31 has partition walls 33 so as to form eight recesses 32 for accommodating the negative pole side of the battery by about 1/4 of the length of the battery. In each recess 32,
The partition wall 33 on the outer circumferential side of the battery case is formed with an inclined surface 34 inclined by about 15 degrees to facilitate the insertion and removal of batteries. In order to fit the member 31 with the member 11, a gap is formed between the partition wall 33 and the protruding wall 35 on the inner peripheral side of the battery case. The tip of the vertical wall 12 of the member 11 is fitted into this gap, and the first member 11 and the second member 3
1 are integrally connected. They are fixed with screws 37 to strengthen the connection between them. Further, in order to form a collision gap between the members 11 and 31 through which the lead electrode 16 passes, a step 17 is formed in the middle of the vertical wall 12 of the member 11, and this step 17 is brought into contact with the partition wall 33 of the member 31. Further, a recess 36 is formed so that the lead electrode 16 can contact the negative pole of the battery and bend. The member 31 has screws 39 on its outer periphery for tightening the battery cover 3.

When storing a battery in the battery case configured as described above, first loosen the screws 39 and remove the battery cover 3, and first insert the negative pole side of the battery 51 into the recess 32 of the second member 31.
Insert it obliquely along the inclined surface 34. At this time, the negative end of the battery 51 hits the inclined surface 34 and the vertical wall 12 and is held so as not to fall. Press the next battery against the vertical wall 12 so that the positive electrode side of the battery contacts the lead electrode 16. To store 8 batteries, insert 8 batteries diagonally into each recess 32, then
The batteries are sequentially placed upright along the vertical wall 12. Alternatively, connect the + terminal side of all batteries to the vertical wall 1 at the same time.
Press to 2. Finally, tighten the battery cover 3 to the screws 39.

Next, when removing the battery, fold down the middle part of the battery in the longitudinal direction and pull it out to remove the positive terminal. The battery is held in an oblique state so that it hits the inclined surface 34 and the vertical wall 12 so as not to fall. Therefore, if you remove all eight batteries at once and then replace them with new ones, there will be no confusion of old and new batteries mixed together.

<Effects of the invention> The battery case of the present invention can hold the battery in an oblique position by placing it against the inclined surface 34 and the vertical wall 12 when replacing the battery, which makes it easier to place the battery in a predetermined position in the battery case. Since the work of inserting the battery between the positive electrode and the negative electrode can be done separately, it does not require very strong work. Further, since the negative electrode side of the battery enters into the recess 32 and is securely held, the positive electrode side can be easily inserted and removed. Moreover, the batteries are held diagonally with the positive side removed, so you can replace old and new batteries without mixing them up.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing an exploded electric megaphone.
2 is a sectional view taken in a direction perpendicular to the axial direction of the electric megaphone shown in FIG. 1, FIG. 3 is a longitudinal sectional view of the battery case of the present invention, and FIG. FIG. 5 shows a sectional view taken along the line CD in FIG. 3. 11...first member, 12...vertical wall, 14...
Partition wall, 31... second member, 32... recess, 34
...Slope surface.

Claims (1)

[Scope of utility model registration request] It consists of a first member in contact with the + pole side of the primary battery, and a second member connected to this first member and in contact with the – pole side of the primary battery, and the second member is the length of the primary battery. A battery characterized in that it has a recess with a depth of about 1/4, and an inclined wall is formed on the outer periphery of the battery case of the recess to abut the negative end of the primary battery and hold it in an inclined state. Case.