JPH10106522A - Battery holding mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce occurrence of momentary break by adopting a leaf spring in a battery holding mechanism, eliminating restriction otherwise imposed on the battery insertion direction, and causing the leaf spring to make follow-up after the battery when an impact is applied. SOLUTION: A leaf spring electrode 3 is installed to press the electrode of a battery, and in the neighborhood of the electrode 3, ribs 7 are mounted to restrict the motions of the battery in the axial direction. The ribs 7 reduce the impact applied to the electrode when the devices drops. The electrode 3 is equipped with a contact 3a to press the electrode and a runoff part 3b to secure the contact 3a for moving in the axial direction. Even when the device drops from a comparatively high place and the load of battery is applied to the electrode 3, the contact 3a is free from risk of deformation and runs off backward into the elastic region, so that it is possible to prevent the electrode from deformation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery holding mechanism, and more particularly to a battery holding mechanism used for holding a battery in a device such as a portable information terminal so as not to cause an instantaneous disconnection or poor contact of the battery. .

[0002]

2. Description of the Related Art In many devices such as portable information terminals, a battery holding structure uses a coil spring on a negative pole side and a flat plate electrode on a positive pole side. However, in such a structure, since the insertion direction of the battery is limited (inserted from the negative electrode side first), it is difficult to insert the side-by-side assembled battery, and since the positive electrode side is a flat plate, the height is low (for example, 10 cm). ), The electrodes do not follow the battery, causing an instantaneous interruption, which may destroy data.

[0003]

Therefore, the first aspect of the present invention
The purpose of is to adopt leaf spring for both + pole and-pole,
There is no limitation on the direction in which the batteries are inserted, and the present invention is intended to facilitate the insertion of battery packs arranged side by side. At the same time, the object is to reduce the occurrence of instantaneous interruption by the leaf spring following the battery at the time of impact.

A leaf spring is relatively high (for example,
There is a problem that the battery is likely to be deformed by the impact of the battery when dropped from a height of about 0 cm. Accordingly, a second object of the present invention is to enable the use of a leaf spring in an apparatus (such as a portable information terminal) in which data should not be destroyed due to an instantaneous interruption of a battery due to an impact or a contact failure.

[0005]

In order to solve the above problems, a battery holding mechanism according to the present invention is provided with a leaf spring electrode for pressing both poles separated in the axial direction of the battery from both sides, and each leaf spring electrode. A restricting portion for restricting the movement of the battery in the axial direction is provided in the vicinity of.

For example, in a portable information terminal capable of selectively storing a battery pack arranged side by side with a dry battery, a leaf spring electrode is used to hold the battery, thereby improving operability when inserting the battery pack and taking measures against instantaneous interruption of the battery. Can be planned. As a countermeasure against deformation of the leaf spring at the time of a drop impact, a regulating portion for preventing movement of the battery is provided to prevent stress applied to the electrode by the battery.

[0007] The restricting portion can be formed in, for example, a ridge shape.

Further, the leaf spring electrode is constituted by a contact portion for pressing both poles of the battery and a relief portion for ensuring the axial movement of the contact portion. Thus, even if the device falls from a relatively high place and the load of the battery is applied to the contact portion of the electrode, the contact portion escapes backward within the elastic region without being deformed, thereby preventing the electrode from being deformed. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of one embodiment, FIG.
1 is an enlarged perspective view of a portion A in FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 1, FIG. 4 is a cross-sectional view taken along line CC of FIG. 1, FIG. FIG. 6 is a perspective view of the second leaf spring electrode, and FIG. 7 is a plan view showing a state where the assembled battery is loaded.

The battery to be loaded is, for example, the assembled battery 1 shown in FIG. 1, and two batteries are bundled with the polarities reversed and inserted into the battery housing 2. At both ends of the battery housing 2, leaf spring electrodes for pressing the battery pole from both sides are attached. There are two types of leaf spring electrodes, two first leaf spring electrodes 3 shown in FIG. 5 are arranged side by side, and one second leaf spring electrode 4 shown in FIG. Connect each other.

The first leaf spring electrode 3 is formed by cutting and bending a metal plate. As shown in FIG. 5, the contact 3a for pressing the battery and the movement of the contact 3a in the battery axial direction are ensured. Escape area (escape part) 3b, attachment part 3c for attaching the electrode to circuit board 5 (FIG. 4), L-shaped bent connection part 3d, and butting for abutting the end face of circuit board 5 Part 3e and a contact 3a extending from the mounting part 3c.
And a contact supporting portion 3f for supporting the above.

When the leaf spring electrode 3 is attached to the battery housing 2, the contact supporting portion 3f of the leaf spring electrode 3 is applied to the end wall 2a (FIG. 5) of the battery housing 2, and the escape area 3b is formed in the opening 2b. To be located at On the other hand, as shown in FIG. 4, the mounting part 3c of the leaf spring electrode 3 is applied to the circuit board 5, and the connection part 3d is passed through a through hole (connection terminal) formed in the circuit board 5 and soldered.

A bent portion 3g for reinforcement is formed below the contact supporting portion 3f.

In the end wall 2a of the battery housing 2, a plurality of ribs 7 are formed in the vicinity of the leaf spring electrode 3 as regulating portions for regulating the movement of the battery in the axial direction. The rib 7 has a ridge shape, whereby the movement of the battery can be reliably restricted in a space-saving manner.

FIG. 6 is a perspective view of the second leaf spring electrode 4. The second leaf spring electrode 4 is formed by cutting and bending a metal plate, and includes a contact 4a for pressing the battery and a contact 4a.
Escape area (escape part) to secure movement of the battery in the axial direction
4b, a support plate 4c, and a contact 4a extending from the support plate 4c.
And a contact supporting portion 4f for supporting the contact. A bent portion 4g for reinforcement is formed below the contact supporting portion 4f.

When the leaf spring electrode 4 is mounted on the battery housing 2, as shown in FIG.
It is only necessary to insert the support plate 4c of the leaf spring electrode 4 between the two plates 2d that rise from.

According to the above, since the plate spring electrode is used, unlike the case where the conventional coil spring is used,
Since the direction in which the batteries are inserted is not limited, the batteries can be easily inserted even when the batteries are arranged side by side. Further, when a shock is applied from a low height (about 10 cm), the leaf spring follows the battery, so that occurrence of data destruction due to instantaneous interruption is reduced.

Further, since the ribs 7 for preventing the movement of the battery are mounted in the battery housing 2, the impact on the electrode when the battery is dropped can be reduced.

In addition, the leaf spring electrodes 3 and 4 have their contacts 3
Since the electrodes a and 4a are shaped to escape backward (to the escape areas 3b and 4b) in the elastic region of the leaf spring, the electrodes are sandwiched between the battery and the wall of the housing as in the related art. It can prevent the situation of being deformed.

In the above description, the battery holding mechanism used in the portable terminal device has been described. However, the present invention is not limited to this, and can be applied to all other devices. In particular, it is needless to say that the present invention is useful for a device such as a portable information terminal that prevents instantaneous interruption of a battery or poor contact.

[0021]

As described above, the first effect of the present invention is that the operability when a battery is inserted is improved. The reason is that the insertion direction of the battery is not restricted because the plate spring electrode is employed. The second effect is that occurrence of instantaneous interruption due to falling is reduced. The reason is that the adoption of the leaf spring electrode allows the electrode to follow the movement of the battery even if the battery moves at the time of impact. A third effect is that the electrodes are hardly deformed even when the device falls. The reason is,
This is because a relief portion for the contact portion of the leaf spring electrode is provided.

[Brief description of the drawings]

FIG. 1 is an external view of an embodiment of a battery holding mechanism of the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view taken along line CC of FIG. 1;

FIG. 5 is a view showing how a first leaf spring electrode is mounted.

FIG. 6 is a perspective view of a second leaf spring electrode.

FIG. 7 is a plan view showing a state where a battery pack is loaded.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 assembled battery 2 battery housing 3 first leaf spring electrode 4 second leaf spring electrode 5 leaf spring electrode 6 circuit board 7 rib

Claims (3)

[Claims] 1. A battery according to claim 1, further comprising a plate spring electrode for pressing both poles separated from each other in the axial direction of the battery from both sides, and a restricting portion for restricting the axial movement of the battery in the vicinity of each of the plate spring electrodes. Characteristic battery holding mechanism. 2. The device according to claim 1, wherein the restricting portion has a ridge shape.
The battery holding mechanism according to item 1. 3. The battery holding mechanism according to claim 1, wherein the leaf spring electrode includes a contact portion for pressing both poles of the battery, and a relief portion for securing the movement of the contact portion in the axial direction. .