JP2605402Y2 - Battery storage structure for electronic equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for accommodating a small battery used in electronic equipment such as an electronic thermometer.

[0002]

Conventionally, in an electronic device eg an electronic thermometer using a small battery, a method of storing or retaining the battery it is variously devised, shown as an example in Japanese Patent actual fairness 3-55246 Have been. The structure is such that the thermometer main body and the battery holder can be attached and detached , and a small battery is held in the battery holder and incorporated into the thermometer main body to connect with the contact spring provided on a part of the thermometer main body. It is supposed to be. Further, as another method, a concave portion is provided in a part of a component constituting the thermometer main body, and a battery is disposed in this concave portion and fixed with a battery holding member or pressed with a hook provided in the concave portion. You are.

[0003]

However, in any of the above structures, the size of the battery to be used is specified, and a battery having a size other than the specified battery size cannot be stored or held. Only one type of battery could be used. In recent years, there has been a strong demand for a battery that does not use mercury, that is, a lithium battery, due to the problem of environmental pollution of batteries that use mercury. The 1.5V lithium battery, which replaces the 1.5V battery that is available, is still limited in type and penetration rate, so it is difficult to obtain a replacement battery when the battery is exhausted. It may have an effect. For this reason, if the battery has a structure capable of storing batteries of two different sizes, it is possible to use a battery which is more easily available at the time of battery replacement, or to select a battery size designated according to a sales area.

The present invention has been made in consideration of the above circumstances, and has a structure in which two types of batteries having different sizes can be selectively stored, so that the battery can be easily obtained at the time of battery replacement or purchase. It is an object of the present invention to provide a battery storage structure for an electronic device that can use any of the above batteries.

[0005]

In order to achieve the above object, the present invention has the following structure, namely, a battery housing capable of selectively housing two types of batteries having different diameters and thicknesses. A battery housing structure of an electronic device including a part, wherein one of the batteries is configured to have a diameter larger than that of the other battery and a thickness smaller than that of the other battery, and the battery housing part stores the one battery. a battery case detachable to the electronic device and the second concave portion is formed for the first recessed portion for holding the other battery for holding, the battery case is mounted to the electronic device either one of the battery or the other battery the Te is in the state of being selectively retained in the first recess or the second recess, the other battery side as a positive electrode of said one battery Any side of the side that is the positive electrode Contacts with the same contact pressure to the same contacts of the positive electrode contact spring disposed in the device, distribution any negative side plane of the negative electrode side plane of the anode side flat and the other battery of the one battery to the electronic device so as to contact with the same contact pressure to the same contacts of the negative electrode contact spring which is set, and placing the first concave portion and the second concave portion.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views of a battery housing of an electronic thermometer according to a first embodiment of the present invention. The battery case 1 is detachably provided so as to be inserted into and attached to the opening of the main body case 2, and the outer end surface 1 a is formed so as to match the opening end of the main body case 2. Further, a first circular recess 1c as a first holding portion for inserting and holding the battery 3a from the inner end surface 1b side of the battery case 1;
A second circular concave portion 1d, which is a second holding portion for inserting and holding, is provided. The battery 3a has a larger diameter than the battery 3b and a smaller thickness than the battery 3b.
The first circular concave portion 1c and the second circular concave portion 1d are
A flat part 1e for arranging the negative contact spring 4 in contact with the negative side surface of the battery of the type and a placement part 5a of a positive contact spring 5 for contacting the side surface which is the positive electrode of the two types of batteries are used as contacts. And the thickness of the first circular concave portion 1c corresponding to the battery 3a is smaller than the thickness of the second circular concave portion 1d corresponding to the battery 3b. It is configured.

When the battery 3a is assembled into the battery case 1 thus formed with the negative electrode facing upward and inserted into the main body case 2 with the inner end face 1b first, the battery 3a is held in the first circular recess 1c and the battery 3b Is inserted into the body case 2 with the inner end face 1b first with the negative electrode facing upward, and is held in the second circular recess 1d. A negative contact spring 4 and a positive contact spring 5 already provided in the main body case 2 are provided.
The connection can be made at the same position and the same contact pressure in any of the types of batteries. That is, when the battery 3a is incorporated and when the battery 3b is incorporated, the contacts can be taken at the same position, and the amount of deflection of the contact springs 4 and 5 does not change, so that the same contact pressure can be obtained. Also, two types of contact springs can be used completely in common.

FIGS. 4 and 5 are views of a battery housing of an electronic thermometer according to a second embodiment of the present invention. A detachable battery cap 6 is provided at the end of the main body case 2 opposite to the sensor section, and when the battery cap 6 is removed, a part of the middle frame 7 constituting a module from the end of the main body case 2 Projecting therefrom, a battery housing recess 7a for housing the battery 3a is formed in that portion. Further, a negative contact spring 4 is provided on the lower side of the battery 3a to take a negative contact, and a positive contact spring 5 is provided so as to contact the side surface of the battery 3a to take a positive contact. A battery pressing plate 8 is provided to suppress the battery from popping out due to elasticity for pressing against the electrode, and is fixed with a set screw 9. When the battery 3b is stored in the battery storage recess 7a of the middle frame 7, the battery 3b has a smaller diameter than the battery 3a, so that the battery 3b rattles. For this reason, the battery holding plate 8 is provided with a battery holding recess 8a for holding the battery 3b.

When the battery 3a is housed with the positive electrode facing upward in the battery housing recess 7a of the middle frame 7 formed as described above and fixed with the battery holding plate 8, the battery housing recess of the middle frame 7 extends in the radial direction. 7a, and the thickness direction is fixed at the mating surface with the middle frame 7 of the battery holding plate 8. On the other hand, when the battery 3 b is stored with the positive electrode facing upward in the battery housing recess 7 a of the middle frame 7 and fixed by the battery holding plate 8, the battery 3 b is fixed by the battery holding recess 8 a of the battery holding plate 8. That is, when the battery 3a and the battery 3b are incorporated, the position of the surface of the negative electrode is the same, so that the deflection amount of the negative electrode contact spring is the same, and the position of connection to the positive electrode is also the same. The deflection amount of the positive electrode contact spring is also the same, and the same contact pressure can be obtained with two types of batteries. In this embodiment, two types of batteries, the battery 3a and the battery 3b, can be stored. However, if a battery having a smaller diameter and a larger thickness than the battery 3b is designated, three types of batteries can be stored. In addition, if the above conditions are satisfied and the connection of the contact spring is possible, it is possible to further increase the designated batteries.

[0010]

As is apparent from the above description, according to the present invention, in an electronic device using a small battery, such as an electronic thermometer, a battery storage section using a battery case detachable from the electronic device body is provided. It is possible to store two or more types of batteries having different sizes, and it is possible to use batteries that are easily available at the time of battery replacement or purchase of batteries. I
All batteries stored in the battery compartment are positive contacts
The same contact of the spring and the negative contact
Contact by touch.

[Brief description of the drawings]

FIG. 1 is a plan view of a battery case of an electronic thermometer according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a battery case of the electronic thermometer according to the first embodiment of the present invention.

FIG. 3 is a plan view of the entire electronic thermometer showing the first embodiment of the present invention.

FIG. 4 is a plan view of a battery storage portion of the electronic thermometer according to the second embodiment of the present invention.

FIG. 5 is a sectional view of a battery storage portion of the electronic thermometer according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery case 2 Body case 3a Battery 3b Battery 4 Negative contact spring 5 Positive contact spring 6 Battery cap 7 Middle frame 7a Battery storage recess 8 Battery holding plate 8a Battery holding recess 9 Set screw

Claims (1)

(57) [Scope of request for utility model registration] 1. A battery storage structure of an electronic device including a battery storage portion capable of selectively storing two types of batteries having different diameters and thicknesses, wherein one of the batteries has a diameter larger than the other battery. And the thickness is configured to be thinner than the other battery,
The battery accommodating portion is a first battery for holding the one battery.
A battery case detachable to the electronic device and the second concave portion is formed for holding the other of the battery and the concave portion,
In a state where the battery case is selectively retained in the first recess or the second recess is one of the electronic devices to be mounted on one of the battery or the other said cell, said one cell Both side surfaces of the positive electrode and the positive electrode of the other battery are in contact with the same contact point of the positive electrode contact spring disposed on the electronic device at the same contact pressure, and the negative electrode side surface of the one battery. and the like also the other one of the anode side plane of the negative electrode side plane of the battery contact with the same contact pressure to the same contacts of the negative electrode contact spring disposed to the electronic device, wherein the first concave portion and the second concave A battery storage structure for an electronic device, wherein a part is arranged.