JP2001057195A - Battery holder of electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery holder having superior reliability for vibration resistance and shock resistance by restraining vibration in the circumferential and the axial directions of a primary battery due to the vibration and shock and by restraining abrasion occurring at the contact part between the primary battery and electrodes. SOLUTION: This battery holder is composed by adding a mechanism in a box 5 provided with a tapered female screw part 5c on its inside wall, such that a primary battery 4 is caught by a collar upper part 11 and a lower part 12, each having a male screw part capable of being screwed to the female screw part 5c and inserted into the box 5 so that the distance between the collar upper part 11 and lower part 12 is reduced, the primary battery 4 is pressed and its vibration in the circumferential direction is restrained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery holder for holding a memory backup primary battery housed in a housing of an electronic device.

[0002]

2. Description of the Related Art Conventionally, an electronic device containing an electronic circuit module having a memory function, especially a non-volatile memory function, is used when the power supply of the electronic device itself is cut off or momentarily interrupted in addition to the electronic circuit module, power supply and connectors. In order to maintain the memory function, a primary battery or the like is added in the housing as a memory backup power supply.

FIG. 6 shows the appearance of an electronic device, and FIG.
2 is a cross-sectional view showing a battery holder of a conventional electronic device showing a cross section DD in FIG. In the figure, 1 is a chassis, 2 is an outer cover, 3 is an electronic circuit module, 4 is a primary battery,
5 is a box that is attached to the chassis 1 and houses the primary battery, 6 is a cover that houses the primary battery together with the box 5,
Reference numeral 7 denotes a + electrode of a nickel-plated copper leaf spring held in the box 5, 8 denotes a − electrode of a nickel-plated copper spiral spring, and 9 denotes a + electrode 7 which is tightly fixed to the box 5 and holds the + electrode 7. Is an insulating plate.

To accommodate the primary battery 4 of the electronic device configured as described above, the primary battery 4 is inserted into a box 5 having a positive electrode 7 and a cover 6 having a negative electrode 8 is placed in the box 5. By attaching and connecting with screws not shown, 1
The secondary battery 4 is held only by the spring force generated by the amount of compressive displacement of the positive electrode 7 and the negative electrode 8.

[0005]

The electronic equipment provided with the above-mentioned battery holder, particularly an electronic equipment mounted on an aircraft, is subjected to an environment in which the conditions of vibration and shock are extremely severe. However, the retention of the primary battery 4 depends on only the spring force of the + electrode 7 and the −electrode 8 as in general electronic equipment, and the above-mentioned spring force is mainly in a direction parallel to the insertion direction of the primary battery 4. , And the suppression of the primary battery 4 in the circumferential direction was almost equal. Therefore, for example, a conventional battery holder is mounted on an aircraft and vibration conditions of about 5.3 Grms or about 30
When used under severe environmental conditions such as G impact conditions,
Vibration occurs in the gap between the outer shape of the primary battery 4 and the inner walls of the box 5 and the cover 6, and the primary battery 4 and the + electrode 7 and the -electrode 8
Abrasion occurs at the contact area. Due to this abrasion, the nickel plating of each electrode was peeled off, and the peeled plating powder was oxidized and adhered to the electrode, resulting in a problem of poor electrical conduction.

In addition, under such severe vibration and shock conditions, there is a possibility that the primary battery 4 collides against the inner wall of the box 5 and damages the primary battery 4 and leaks the electrolyte contained therein. was there.

The present invention has been made in order to solve the above-mentioned problems, and suppresses the circumferential deflection of the primary battery 4 and at the same time, contacts the primary battery 4 with the positive electrode 7 and the negative electrode 8. It is an object of the present invention to obtain a battery holder for an electronic device which suppresses abrasion generated in the electronic device and has excellent reliability and safety against vibration, impact and the like.

[0008]

A battery holder for an electronic device according to a first aspect of the present invention is fixed to the electronic device, has a cylindrical internal thread having a tapered female screw on an inner wall, and has a flange disposed on an end face in an axial longitudinal direction. A box having a partition wall at an end face facing the flange, a semi-cylindrical shape having a cushioning material on an inner wall, and an outer wall having upper and lower collars having external threads screwed with female threads of the box; and a flange side of the box. A primary battery inserted into the box from above and gripped by the upper and lower portions of the collar and housed in the box, a + electrode provided on the partition wall of the box and pressing the positive electrode of the primary battery, and coupled to a flange of the box And a cover provided on the cover and pressing the negative electrode side of the primary battery.
An electrode and an insulating plate provided on the partition wall of the box and holding the positive electrode.

A battery holder for an electronic device according to a second aspect of the present invention is fixed to the electronic device, has a cylindrical shape, has a plurality of round holes in an inner wall in a circumferential direction, and has a flange disposed on an end face in an axial longitudinal direction. A box having a partition wall at an end face facing the flange, a collar having a semi-cylindrical shape having a cushioning material on an inner wall, and having a plurality of ball plungers on an outer wall having the same diameter as the diameter of a round hole of the box. And a lower part, a primary battery inserted from the flange side of the box, held by the upper and lower parts of the collar and housed in the box, and provided on the partition of the box to press the positive electrode side of the primary battery. An electrode, a cover coupled to the flange of the box, a negative electrode provided on the cover for pressing the negative electrode side of the primary battery, and a positive electrode provided on the partition of the box. It is obtained by an insulating plate for lifting.

A battery holder for an electronic device according to a third aspect of the present invention is fixed to the electronic device, has a cushion member on a circular inner wall side in a semicircular shape, and has a flange disposed on an end face in the axial longitudinal direction. A box having a partition wall on an end face facing the box, a primary battery inserted from the flange side of the box and housed in the box, and a through hole at both ends which is fixed to the box and is perpendicular to the box longitudinal direction. A retainer body, disposed parallel to the primary battery, having through holes at both ends similarly to the retainer body, a plate provided with a cushioning material on the surface on the primary battery side, and a through hole at the center. Prismatic stopper,
Arranged on the flange side of the box, the upper part of the arm supported by the through hole of the retainer body and the plate and the stopper, and a slider having a through screw hole in the center,
The retainer body and the through-hole of the retainer body and the plate, the lower portion of the arm supported by the slider, and the through-hole of the stopper and the through-screw of the slider are disposed on the end face side facing the flange, and A fixing screw for connecting the plates, a positive electrode provided on the partition wall of the box for pressing the positive electrode side of the primary battery, a cover connected to a flange of the box, and a negative electrode for the primary battery provided on the cover It is provided with a negative electrode for pressing the side, and an insulating plate provided on the partition wall of the box and holding the positive electrode.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a view showing a first embodiment of the present invention, and FIG. 2 is a sectional view D in FIG.
FIG. 2 shows a cross-sectional view of the battery holder showing D. 1, 2,
3, 4, 6, 7, 8, and 9 are the same as the battery holder in the conventional electronic device.

A female screw portion 5c having a cylindrical shape and a tapered inner wall.
A box 5 having a partition wall 5b on the end face facing the flange, and a silicon sponge 10
A collar upper portion 11 and a lower portion 12 having external threads which are screwed into the female screw portion 5c of the box 5 on the outer wall, and are inserted between the collar upper portions 11 and the lower portion 12 and inserted into the box 5 from the flange side of the box 5. Primary battery 4 to be stored
And a cover 6 arranged on the flange of the box 5. The primary battery 4 is sandwiched between the collar upper part 11 and the lower part 12, and the male screw part of the collar upper part 11 and the lower part 12 is screwed into the tapered female screw part 5 c of the box 5, and tightened. The interval is narrowed,
Eventually, the mechanism is to press the silicon sponge 10 on the upper and lower collars 11 and 12 against the primary battery 4. 1
The secondary battery 4 is brought into close contact with the upper and lower collars 11 and 12, and the male screw portions of the upper and lower collars 11 and 12 are screwed into the tapered female screw portion 5 c of the box 5 and tightened in the circumferential and axial directions. Of the primary battery 4 and +
Vibration and impact that can simultaneously suppress wear of the contact portions with the electrodes 7 and the -electrode 8, prevent peeling of the nickel plating of the + electrode 7 and the -electrode 8, and prevent poor conduction and breakage of the primary battery 4. Thus, an electronic device having excellent reliability with respect to, for example, can be obtained. The cover 6 has a structure in which a tapered male screw is provided on the outer surface of the upper and lower collars 12 and a tapered female screw is provided on the inner surface of the box 5.
The primary battery 4 is completely fixed to the box 5 before the battery is attached to the box 5. For this reason, the primary battery 4 is not biased by the spring force of the negative electrode 8 when the primary battery 4 is attached to the cover 6, and the attachment of the primary battery 4 and the attachment and detachment of the cover 6 are facilitated.

Embodiment 2 FIG. 2 and 3 are views showing Embodiment 2 of the present invention. FIG. 2 is a sectional view of the battery holder, and FIG. 3 is a view showing a cross section BB in FIG. 4,
6, 7, 8, and 9 are the same as the conventional battery holder.

A box 5 having a cylindrical shape, having round holes at four locations in the circumferential direction of the inner wall, and having a partition wall 5b on the end face facing the flange, a semi-cylindrical shape having a silicon sponge 10 on the inner wall, and a box on the outer wall. The upper part 11 and the lower part 12 each of which has four ball plungers 13 having the same diameter as the diameter of the round hole of No. 5, and the primary part inserted between the upper part 11 and the lower part 12 of the collar and inserted and stored from the flange side of the box 5 Battery 4
And a cover 6 arranged on the flange of the box 5. The primary battery 4 is sandwiched between the upper part 11 and the lower part 12 of the collar, and inserted into the box 5 so that the upper part 11 of the collar is inserted.
And the ball plunger 13 in the lower part 12 is
1 and the lower part 12 are pressed toward the central axis of the box 5,
The primary battery 4 and the silicon sponge 10 provided on the upper and lower collars 11 and 12 are brought into close contact with each other.
The ball plungers 13 of the upper part 11 and the lower part 12 of the collar enter into the round holes arranged in the box 5, and a mechanism for fixing the upper part 11 and the lower part 12 of the collar in the box 5 is provided. The primary battery 4 is brought into close contact with the upper and lower collars 11 and 12 and is fixed by the ball plunger 13, so that the primary battery 4 swings in the circumferential direction and the axial direction, and the primary battery 4 contacts the positive electrode 7 and the negative electrode 8. Parts can be suppressed at the same time, and peeling of nickel plating of the + electrode 7 and the − electrode 8 can be prevented.
An electronic device having excellent reliability with respect to vibration, impact, and the like that can prevent poor current conduction and breakage of the electronic device can be obtained. In addition, since the ball plunger 13 is provided on the outer periphery of the upper and lower collars 11 and 12, the ball plunger 13 can be mounted more easily than when the ball plunger 13 is mounted on the inner cylinder of the box 5. Processing and assembly becomes easier.

Embodiment 3 4 and 5 are views showing Embodiment 3 of the present invention. FIG. 4 is a sectional view of the battery holder, and FIG. 5 is a view showing an arrow C in FIG. 4,
6, 7, 8, and 9 are the same as the conventional battery holder.

A box 5 having a silicon sponge 10 on the inner wall side of a circular cylinder and having a partition wall 5b on the end face facing the flange, a primary battery 4 housed in the box 5, and a close contact with the box 5 Retainer body 1 fixed at both ends and having through holes perpendicular to the longitudinal direction of the box
4, a primary battery 4 and a plate 15 provided with a silicon sponge 10 on the side facing the primary battery, and a through hole at the center, similar to the retainer body 14. A stopper 16 in the form of a prism and an upper arm 17 disposed on the flange side of the box 5 and supported by the through hole of the retainer body 14 and the plate 15 and the stopper 16;
A slider 18 having a through-threaded hole in the center, an arm lower portion 19 disposed on the end face side facing the flange and supported by the through-hole of the retainer body 14 and the plate 15 and the slider 18, a through-hole of the stopper 16 and the slider It is composed of a retainer body 14 and a fixing screw 20 for connecting the plate 15 via 18 through screws. Fixing screw 2
By tightening 0, the distance between the stopper 16 and the slider 18 is reduced, and the distance between the retainer body 14 and the plate 15 connected to the stopper 16 and the slider 18 by the arm upper part 17 and the lower part 19 is increased. The plate 15 has a mechanism for pressing the primary battery 4 against the silicon sponge 10 on the semicircular inner wall side of the box. The primary battery 4 is pressed against the silicon sponge 10 in the box 5 by the plate 15 and brought into close contact with the silicon sponge 10, so that the primary battery 4 and the primary battery 4 vibrate in the circumferential and axial directions.
Vibration that can simultaneously suppress the wear of the contact portion between the positive electrode 7 and the negative electrode 7 and the negative electrode 8, prevent peeling of the nickel plating of the positive electrode 7 and the negative electrode 8, and prevent poor conduction and breakage of the primary battery 4. An electronic device having excellent reliability against impacts and the like can be obtained. In addition, the stopper 16 and the slider 1
By rotating the fixing screw 20 with respect to the plate 8, the plate 15 is pressed against the primary battery 4 and the primary battery 4 can be easily held, thereby facilitating the holding operation.

[0017]

Since the battery holder according to the present invention is configured as described above, it has the following effects.

According to the first and second aspects of the present invention, the positive electrode and the negative electrode
In addition to the spring force in the primary battery axial direction by the electrodes, the primary battery is sandwiched between the upper and lower collars and inserted into the box, so that the upper and lower collars push the primary battery from the circumferential direction to the central axis direction. As a result, circumferential and axial vibrations of the primary battery due to vibration, impact, and the like are suppressed, and accordingly, wear of the contact portions between the primary battery and the + and-electrodes is also suppressed. Become. Therefore, it is possible to prevent the + electrode and the-electrode from being worn, and it is possible to prevent a failure in energizing the primary battery due to the oxidized adhesion of the wear powder on the electrode. Also, collision of the primary battery with the inner wall of the box due to vibration, impact, and the like can be prevented at the same time, and damage to the primary battery and electrolyte leakage inside the battery can be prevented, resulting in excellent reliability against vibration, shock, and the like. Electronic devices can be obtained.

Further, according to the first and second aspects of the present invention, the primary battery is sandwiched between the upper and lower portions of the collar, and the primary battery is pressed from the circumferential direction to the center axis direction, whereby the pressing surface of the primary battery is pressed. , A frictional force acts in the axial direction of the primary battery, and the axial run-out can be suppressed at the same time. Therefore, the load acting on the + and-electrodes due to vibration, impact, etc. decreases, and the + The bending stress generated in the member and the torsional stress generated in the negative electrode member are reduced, and the fatigue strength of the positive electrode and the negative electrode can be increased.

According to the third aspect of the present invention, in addition to the spring force in the axial direction of the primary battery by the positive electrode and the negative electrode, the fixing screw provided in the box is tightened, so that the plate is formed into a semicircular shape in the box having a semi-cylindrical shape. Of the primary battery from the opposite surface of the inner wall to the semi-circular inner wall, vibration in the circumferential direction and the axial direction of the primary battery due to vibration, impact, etc. is suppressed, and the primary battery and the + electrode and -Wear of the contact portion with the electrode is also suppressed at the same time. Therefore, it is possible to prevent the + electrode and the-electrode from being worn, and it is possible to prevent a failure in energizing the primary battery due to the oxidized adhesion of the wear powder on the electrode. Also, collision of the primary battery with the inner wall of the box due to vibration, impact, and the like can be prevented at the same time, and damage to the primary battery and electrolyte leakage inside the battery can be prevented, resulting in excellent reliability against vibration, shock, and the like. Electronic devices can be obtained.

According to the third aspect of the present invention, the primary battery is pressed against the inner wall of the box opposite to the retainer body mounting surface of the box by the plate, whereby the frictional force in the primary battery axial direction is applied to the pressing surface of the primary battery. Acts, and the axial vibration can be suppressed at the same time. Therefore, the + electrode and-due to vibration, impact, etc.
Since the load acting on the electrode is reduced, the bending stress generated in the member of the positive electrode and the torsional stress generated in the member of the negative electrode are reduced, and the fatigue strength of the positive electrode and the negative electrode can be increased.

Further, according to the third aspect of the present invention, even if the outer dimensions of the primary battery in the circumferential direction vary somewhat,
The primary battery can be reliably held by the movement of the retainer. In addition, if the outer dimensions of the primary battery in the circumferential direction are changed within the movable range of the plate and the inner wall dimensions of the box, the box and the cover can be continuously used without remanufacturing. it can.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing Embodiment 1 of a battery holder according to the present invention.

FIG. 2 is a sectional view showing Embodiment 2 of a battery holder according to the present invention.

FIG. 3 is a view showing a cross section BB in FIG. 3;

FIG. 4 is a sectional view showing Embodiment 3 of a battery holder according to the present invention.

FIG. 5 is a view showing an arrow C in FIG. 5;

FIG. 6 is an external view showing a conventional battery holder.

FIG. 7 is a diagram showing a cross section DD in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chassis 2 External cover 3 Electronic circuit module 4 Primary battery 5 Box 6 Cover 7 + electrode 8 -electrode 9 Insulating plate 10 Silicone sponge 11 Upper collar 12 Lower collar 13 Ball plunger 14 Retainer body 15 Plate 16 Stopper 17 Upper arm 18 Slider 19 Arm lower part 20 Fixing screw

Claims (3)

[Claims] 1. A box which is fixed to an electronic device, has a cylindrical shape, has a tapered female screw on an inner wall, has a flange disposed on an end face in an axial longitudinal direction, and has a partition wall on an end face opposed to the flange, and a semi-cylindrical shape. The upper and lower collars having a cushion material on the inner wall and male threads on the outer wall that screw with the female threads of the box, and are inserted from the flange side of the box and gripped by the upper and lower collars and housed in the box Primary battery, a positive electrode provided on the partition wall of the box and pressing the positive electrode side of the primary battery, a cover coupled to a flange of the box, and a negative electrode side of the primary battery provided on the cover A battery holder for an electronic device, comprising: a negative electrode that presses a positive electrode; and an insulating plate that is provided on a partition of the box and holds the positive electrode. 2. An electronic device, comprising: a cylindrical shape having a plurality of round holes in an inner wall in a circumferential direction; a flange disposed on an end face in an axial longitudinal direction; and a partition wall on an end face facing the flange. A box, a semi-cylindrical shape having a cushion material on the inner wall, a collar upper and lower parts having a plurality of ball plungers on the outer wall having the same diameter as the diameter of the round hole of the box, and inserted from the flange side of the box. A primary battery gripped by the upper and lower portions of the collar and housed in a box; a + electrode provided on a partition of the box for pressing a positive electrode side of the primary battery; and a cover coupled to a flange of the box. An electronic device provided with a negative electrode provided on the cover and pressing the negative electrode side of the primary battery, and an insulating plate provided on a partition of the box and holding the positive electrode. Container battery holder. 3. A box which is fixed to an electronic device, has a cushion material on a circular inner wall side in a semicircular shape, has a flange on an end face in an axial longitudinal direction, and has a partition wall on an end face opposed to the flange; A primary battery inserted from the flange side of the box and housed in the box,
A retainer body closely attached to the box and having through holes perpendicular to the longitudinal direction of the box at both ends; and a retainer body disposed in parallel with the primary battery and having through holes at both ends similarly to the retainer body. A plate provided with a cushioning material on the battery side surface, a prismatic stopper having a through hole in the center, and a stopper disposed on the flange side of the box and supported by the retainer body and the through hole of the plate and the stopper. An upper arm, a slider having a through-threaded hole in the center, a through-hole of the retainer body and the plate disposed on the end face side facing the flange, a lower arm supported by the slider, and a through-hole of the stopper A fixing screw for connecting the retainer body and the plate via a through screw of the slider; and a primary screw provided on a partition wall of the box. A + electrode for pressing the positive electrode side of the battery,
A cover coupled to the flange of the box, a negative electrode provided on the cover for pressing the negative electrode side of the primary battery, and an insulating plate provided on the partition of the box and holding the positive electrode. Characteristic battery holder for electronic equipment.