JPS6134689Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a battery holder.

(Conventional technology) When replacing a battery that is conventionally housed in a battery holder provided in a frame, it is necessary to open the small battery cover that covers the opening of the battery holder, place your finger directly on the battery, and pull it out. Alternatively, a ribbon is fixed to a part of the battery holder, and this ribbon is laid along the inside of the battery holder, and the battery is placed on top of it. was taking it out.

(Problem that the invention aims to solve) However, even in the case of a type without a ribbon or a type using a ribbon, if the end of the ribbon gets under the battery, the single or double battery If the battery uses a relatively large diameter battery, such as the battery holder,
You can also remove the battery by placing your finger directly on it, but it requires a lot of force and can make your fingertips hurt. Also, if you are using small diameter batteries such as AA or AAA batteries, the battery holder will be that narrow and it will be difficult to put your finger on the battery, making replacing the battery not only a hassle but also a lot of work. Since it requires a lot of force, it also has the disadvantage of causing pain in the fingertips.

SUMMARY OF THE INVENTION An object of the present invention is to provide a battery holder that allows easy removal and replacement of batteries within the battery holder.

(Means for Solving the Problem) In order to achieve the above object, the present invention magnetically attaches the battery to the back of a small battery cover that is detachably attached to the opening of the battery holder into which the battery is inserted. An attracting magnet is provided, and the magnet has a magnetic attracting force stronger than the battery holding force due to the spring force of the battery contact piece in the battery holder.

(Operation) When replacing the battery in the battery holder, pull the closed battery cover upwards.
Since the magnetic attraction force of the magnet is stronger than the retention force of the battery due to the spring force of the battery contact piece in the battery holder, the battery is taken out together with the battery cover while being attracted to the magnet.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, a small battery cover 1 is detachably attached to an opening of a battery holder 3 provided in a frame 2. As shown in FIGS. On the back of the battery cover 1, there is a battery 4.
A magnet 5 is fixedly arranged so as to have north and south poles in the circumferential direction of the battery, and this magnet is magnetically attracted to the battery. The magnet 5 may have yokes 6 and 7 integrally connected as shown in the figure, and the yoke of this configuration is made of a magnetic material with high magnetic permeability, and has a yoke that can almost be brought into contact with both end faces of the magnet. It is formed into a plate-shaped body with a width. The yokes 6 and 7 have end faces 5 of both poles so as to sandwich the magnet 5 between their upper end sides.
a, 5b, the upper end surface is fixed to the back surface of the small battery lid 1, and the lower end is suspended inside the battery holder 3 and is in contact with the surface of the battery 4. Positive electrode 4a of battery 4 inserted in battery holder 3
The negative electrode 4b side is in elastic contact with the battery contact piece 8, and the negative electrode 4b side is in elastic contact with the battery contact piece 9, so that the battery 4 is held by the battery holding force due to the spring force of both battery contact pieces. Therefore, the magnetic adsorption force of the magnet 5 is made stronger than the battery holding force due to the spring force of the battery contacts 8 and 9 in the battery holder 3. Further, the magnet 5 is arranged closer to one battery contact piece 8 side. An engaging part 10 is provided on the back surface of one end of the small battery lid 1 and projects downward, and a claw part 10a is formed on the outer surface of the tip of this engaging part. The claw portion 10a of the engaging portion 10 is elastically engaged with a locking portion 12 formed on the back surface of one end of the opening of the frame body 2. Both sides of the small battery lid 1 are placed and held in holding parts 11, 11 provided at the opening of the battery holder 3 of the frame 2. There is a knob 13 on the surface of the other end of the battery cover 1.
This is used to open the battery cover. 14 is a guideline.

Note that since the surface of the battery 4 is made of iron, which is a magnetic material, the magnetic flux of the magnet 5 passes through the N end face 5a → the yoke 6 → the surface of the battery 4 → the yoke 7 → the S end face 5b, forming a closed magnetic path. Configure. At this time, if the lower ends of the yokes 6, 7 and the surface of the battery 4 are formed in contact with each other over a wide range, the leakage magnetic flux can be made extremely small.

With the above configuration, when replacing the battery 4 in the battery holder 3, hold the knob 13 of the closed battery cover 1 and pull it upward, and the magnet 5 will magnetically attract the battery as described above. Since the force is stronger than the battery holding force due to the spring force of the battery contacts 8 and 9 in the battery holder 3, the battery 4 is attracted to the battery cover 1 by the magnet 5 and is held together with the battery cover 1. It is taken out. Next, a new battery 4 is stored in the battery holder 3, the claw portion 10a of the engaging portion 10 of the battery small lid 1 is engaged with the locking portion 12 of the frame 2, and the battery small lid is held in the holding portions 11, 11. When placed on top, the small battery cover 1 is fixed with the opening of the battery holder 3 closed.

Note that the placement position of the magnet is not limited to the above example, but is
As shown in the figure, a magnet 15 with both poles located along the longitudinal direction of the battery 4 may be used, and plate-shaped yokes 16 and 17 having arc-shaped notches along the outer periphery of the battery 4 may be provided on both end faces of the magnet 15. . Also magnets 5, 15
The length and width of can be set arbitrarily.

(Effects of the invention) As explained above, according to the invention, a magnet that magnetically attracts the battery is disposed on the back side of the small battery cover that covers the opening of the battery holder, and the magnetic attraction force of this magnet is The battery holding force is stronger than the spring force of the battery contacts in the battery holder, so when the battery cover is opened, the battery is attracted by the magnet and taken out together with the battery cover. Not only is it easy to replace the battery regardless of how wide or narrow the inside of the battery holder is, but there is no need to forcefully insert your finger into the battery holder to remove the battery, so your fingertips won't get hurt. In particular, the smaller the battery, the more troublesome it was to replace it in the past, but according to the present invention, since the smaller battery is lighter, the weight on the battery cover is correspondingly lighter, so it does not require much force. This makes it even easier to take out the battery inside the battery holder.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the main part showing one embodiment of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, and Fig. 3
The figure is a partially cutaway front view of main parts showing another embodiment. 1...Battery cover, 3...Battery holder, 4...
Battery, 5, 15... Magnet, 8, 9... Battery contact piece.

Claims (1)

[Claims for Utility Model Registration] On the back side of the battery cover 1 which is detachably attached to the opening of the battery holder 3 into which the battery 4 is inserted,
A magnet 5 or 15 is disposed to magnetically attract the battery, and the magnet is operated by the spring force of battery contacts 8 and 9 provided in the battery holder so as to come into elastic contact with the battery. A battery holder characterized by having a magnetic adsorption force that is stronger than its holding force.