JPH0355246Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a battery case for attaching a power supply battery used in a small electronic device such as an electronic thermometer to an assembly casing.

[Technical background of the invention and its problems]

BACKGROUND ART Conventionally, in a small electronic device such as an electronic thermometer, a power supply battery is inserted into a recess provided at one end of a casing constituting the thermometer body, and is mounted by being pressed with a lid. In this battery mounting mechanism, the electrode contact piece disposed in the recess has elasticity to press against the electrode of the battery, and has the effect of pushing the battery out of the recess. remains in an unstable state until it is capped. Therefore, there is a need for a means for easily and stably attaching and detaching the battery without the battery falling out of the recess.

[Purpose of invention]

This invention was made in consideration of the above circumstances,
It is an object of the present invention to provide a battery case in which a battery can be easily attached by attaching and detaching the case holding the battery to a housing.

[Summary of the idea]

In order to achieve the above object, the present invention separates the battery holding part from the main body and provides a removable battery case in the housing. In other words, a battery holding hole is formed in a board that is removably attached to the assembled casing, and a battery holding hole is formed approximately in the center of the board, and a battery holding hole extends to one end surface of the board along the gap that divides the bottom of the holding hole into two. It comprises a grooved line and a notch formed by cutting out the substrate including a part of the holding hole parallel to the grooved line, and is configured to insert an electrode member into the grooved line and the notch. This is a battery case.

[Example of idea]

The details of the present invention will be explained with reference to the embodiments shown in FIGS. 1 to 3.

A substrate 1 made of synthetic resin is detachably provided so as to be inserted and attached to an opening in a housing 2 of an electronic thermometer, and its outer end surface 3 is formed to match the opening end of the housing 2. There is. A circular holding hole 5 for housing the battery 4 is bored approximately in the center of the substrate 1, and a gap 6 divides the bottom of the holding hole 5 into two.
A grooved portion 8 is provided extending along the inner end surface 7 of the substrate 1, and one corner of the substrate 1 including a part of the holding hole 5 is cut out so that the cutout surface is parallel to the grooved portion 8. A notch 9 is provided in the.

The battery 4 is housed in the holding hole 5 of the substrate 1 formed in this way with the electrode facing down, and the substrate 1 is inserted into the opening of the casing 2 with the inner end surface 7 first.
An elastic electrode contact piece 11 and an electrode contact piece 12 are attached to a printed circuit board 10 of an electric circuit already arranged in the housing 2, and their tips are inserted into the concave portion 8 and the notch portion 9 of the board 1, respectively. The electrode contact piece 11 is inserted while sliding on the surface of the grooved portion 8 of the substrate 1, and comes into pressure contact with the electrode of the electrode 4 located in the gap 6, and the electrode contact piece 12 is It is inserted while sliding on the notch surface of the notch 9 of the substrate 1,
It is pressed against the side of the battery 4, that is, the electrode. Board 1
When the battery 4 is inserted into the housing, the electrode contact pieces 11 and 12 do not come into contact with the battery 4 until the battery 4 enters the housing 2, so the battery 4 will not fall out of the holding hole 5. After the board 1 is completely inserted into the housing 2, it is fixed with set screws 13. As a result, the battery 4 is attached to the housing 2 and connected to the printed circuit board 10, and the electronic thermometer is ready for use.

As shown in FIG. 4, by providing an O-ring groove 14 on the periphery of the substrate 1 and using an O-ring 15, the housing 2 can have a liquid-tight structure.

[Effect of idea]

As described above, the present invention is a battery case comprising a board removably provided in an assembled casing, which is provided with a battery holding hole, a recessed part for inserting an electrode member, and a cutout part. It has the advantage that it can be stably held and attached to the housing, and that the battery can be easily replaced.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a sectional view showing an example of the battery case attached to the housing, Fig. 3 is a vertical side view thereof, and Fig. 4 is a liquid-tight structure. It is a sectional view showing an example of attachment. 1... Board, 2... Housing, 4... Battery, 5...
Holding hole, 8...concave section, 9...notch section.

Claims (1)

[Scope of utility model registration request] A board removably provided in the assembled casing has a battery holding hole drilled approximately in the center of the board;
A groove extending to one end surface of the substrate along the gap dividing the bottom of the holding hole into two, and a notch extending from one corner of the substrate including a part of the holding hole parallel to the groove. A battery case comprising: a battery case configured to insert an electrode member into the groove and the notch.