JPH0644020Y2 - Battery holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a battery holder for holding a flat battery.

(B) Conventional Technology As a battery holder for holding a flat battery such as a button battery, a battery holder as disclosed in JP-A-60-131753 is known. In this battery holder, a first connecting terminal is mounted on the bottom surface of a dish-shaped case having a peripheral wall that presses the side peripheral surface of the battery, and an elastic second connecting terminal having one end fixed to the peripheral wall is provided. It is configured to extend above the bottom, and holds the battery in such a manner that the battery is sandwiched between the second connection terminal and the bottom surface of the case.

The battery holder disclosed in Japanese Utility Model Laid-Open No. 62-62764 includes a case for accommodating a battery and a lid connected to the case through a hinge, and the first and second surfaces are provided on the bottom surface and the peripheral surface of the case. And a second connection terminal is attached, and by closing the opening of the case with a lid,
It is designed to hold batteries.

(C) Problem to be Solved by the Invention However, in the former battery holder, it is necessary to largely lift and displace the second connection terminal extending upward on the bottom surface of the case when mounting the battery. After the battery is mounted, the second connecting terminal fixes the battery by trying to return to its original shape by the elastic restoring force of the terminal itself, but if the battery is repeatedly attached and detached, the restoring force of the connecting terminal decreases. As a result, the force for holding the battery may be reduced, or the portion for fixing the second connection terminal provided on the peripheral wall of the case may be damaged or loose. Further, in order to reduce the influence due to the reduction of the restoring force, when a second connecting terminal having a large elastic force is used, it becomes difficult to lift the connecting terminal upward when mounting the battery, and it is difficult to attach and detach the battery. Becomes

On the other hand, in the latter battery holder, it is difficult to secure the connecting strength of the hinge part that connects the case and the lid, and since the battery is fixed by closing the lid,
If the battery is repeatedly attached and detached, the connection strength of the hinge portion may be reduced, and the lid may come off, causing the battery to pop out.

(D) Means for Solving the Problem The battery holder of the present invention is formed by integrally forming a bottom portion facing the lower surface of a flat battery and a side wall facing the side surface of the battery, and having an opening in the upper portion. A resin case; a first connection terminal that is mounted on the bottom portion and presses a lower surface of the battery upward; and a second connection terminal that is mounted on the side wall and presses a side surface of the battery; Of the side wall located in the vicinity of the connection terminal and in a portion facing the second connection terminal, and a bottom portion located at a portion facing the projection portion while forming a protrusion portion for pressing the upper surface of the battery. It is characterized in that a through hole is formed in.

(E) Action By the above means, the second connection terminal mounted on the side wall presses the battery against the side wall portion facing the second connection terminal to suppress the lateral movement, and the battery is mounted on the bottom surface. 1
By the connection terminal of, the battery is pressed against the protruding portion at the upper end of the side wall, and the vertical movement is suppressed.

When installing the battery in the battery holder, the second connection terminal is inserted obliquely from the opening of the resin case toward the second connection terminal, so that the battery holder is inserted like a conventional battery holder. There is no need to significantly displace the connection terminal, and the decrease in restoring force of the connection terminal is small.

Further, in the above-mentioned means, usually, since the space between the bottom portion of the case and the protruding portion of the upper end of the side wall in the vicinity of the second connection terminal is relatively narrow, it is difficult to insert the battery, but in the vicinity of the second connection terminal. Since a through hole is formed in the bottom of the case facing the protruding portion, by inserting the battery into the through hole, the battery can be pushed further into the battery holder, and the battery mounting operation can be performed. Will be easier.

Further, when molding a resin case, usually, the resin is poured between two molds, and after the resin is solidified, the two molds are removed in the vertical direction. If there is an inwardly projecting portion, the mold located below the projecting portion cannot be removed from the molded body. On the other hand, in the resin case, since there is a through hole in the bottom portion where the projecting portion at the upper end of the side wall faces, it is possible to remove the mold located below the projecting portion through the through hole, and to perform molding. It can be done easily.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 7 are all related to the battery holder of the present invention. FIG. 1 is a perspective view and FIG. 2 is A- of FIG.
A sectional view, FIG. 3 is a sectional view taken along the line BB in FIG. 1, FIG. 4 is a plan view showing a state where a battery is mounted in a battery holder, and FIG. 5 is a sectional view showing a state where a battery is mounted in a battery holder, and FIG. FIG. 7 is a sectional view showing a state where the battery is inserted into the battery holder, and FIG. 7 is a sectional view showing a state where the battery is inserted backward into the battery holder.

In these drawings, 1 is a resin case, and 2 is a bottom part.
And the side wall 3 are integrally formed. A first connecting terminal 4 having elasticity is attached to the center of the inner surface of the bottom portion 2 of the case 1, and a printed circuit board connecting terminal pin 5 penetrating the bottom portion 2 and projecting to the lower surface is formed on the connecting terminal 4. There is.

A terminal mounting portion 7 for mounting the second connection terminal 6 is formed on a part of the side wall 3 of the case 1 so as to project outward from the side wall 3, and an upper surface of the terminal mounting portion 7 is There is a first projecting portion 8 which is parallel to the bottom portion 2 of the case 1 and extends inward of the case 1, and a pair of slits 9 and 9 formed through the projecting portion 8. The second connecting terminal 6 has a U-shaped portion 10, and the U-shaped portion 10 is inserted into the pair of slits 9 and 9 from above the first projecting portion 8 so that the U-shaped portion 10 is formed. A pair of printed circuit board connecting terminal pins 11, 11 extending from the free ends of the case project downward from the bottom surface of the case. A pair of terminal portions 13, 13 connected to the battery 12 in the case 1 extend from the side of the free end of the U-shaped portion 11.

In addition, the case 1 is parallel to the bottom portion 2 of the case 1 at the upper end of the side wall 3 located at the portion facing the second connection terminal portion 6.
A second protrusion 14 formed to extend inwardly of the
Further, through holes 15 and 16 are formed in the bottom portion 2 of the case located below the first protruding portion 8 respectively.

Next, a method of mounting the flat battery 12 in this battery holder will be described.

When mounting the battery on the battery holder, as shown in FIG. 6, from the upper opening of the resin case 1 toward the terminals 13, 13 of the second connection terminal 6, the terminals 13, 13 are formed. Insert diagonally so as to press. At this time, since the through hole 16 is formed in the bottom portion 2 of the case 1 in the vicinity of the second connection terminal 6, the battery 12 can be pushed into the through hole 16, and the battery 12 can be inserted into the case 1. The insertion can be performed easily as compared with the case of hitting the bottom portion 2.
By this insertion operation, the battery 12 is made parallel to the bottom portion 2 of the case 1, and when the hand is released from the battery, the pressing force of the second connecting terminal 6 causes the battery 12 to connect to the second connecting terminal 6.
Is pressed against the side wall 3 of the case in the opposite direction to the above, and the pressing force of the first connection terminal 4 attached to the bottom portion 2 of the case 1 causes the battery 12 to move to the first and second projecting portions 8 and 8. 14
And is held in the battery holder.

Further, since the protrusion 18 having a shape along the annular step portion 17 of the battery is formed on the side of the inner bottom surface of the case 1, when the upper and lower surfaces of the battery are reversed and the battery is to be inserted into the battery holder, As shown in FIG. 7, the battery 12 cannot be mounted in the battery holder.

Further, when the resin case 1 is molded, it is manufactured by pouring resin into a pair of upper and lower molds, but since the through holes 15 and 16 are present in the bottom portion 2 of the case, the resin case is It is possible to easily remove the lower mold, which has entered the lower parts of the first and second protruding parts 8 and 14, from the resin case, which is a molded body of resin, through the through holes 15 and 16 in the bottom part 2 of the case. , Molding can be performed easily.

(G) Effect of the Invention As described above, the battery holder of the present invention does not require a large displacement of the connection terminal when mounting the battery as in the case of the conventional battery holder. It is possible to prevent a decrease in power.

Further, the through hole provided in the bottom portion of the resin case forming the battery holder facilitates the operation of inserting the battery into the battery holder and allows the resin case to be easily molded.

[Brief description of drawings]

1 to 7 are drawings showing a battery pack of the present invention. FIG. 1 is a perspective view, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB in FIG. FIG. 4 is a plan view of the battery holder with the battery mounted, FIG. 5 is a sectional view of the battery holder with the battery mounted, and FIG. 6 is a sectional view of the battery holder inserted into the battery holder. FIG. 7 is a sectional view showing a state in which the battery is reversely inserted into the battery holder. 1 ... Resin case, 2 ... Bottom part, 3 ... Side wall, 4 ... First connection terminal, 6 ... Second connection terminal, 8 ... First protrusion, 12 ... Battery, 14 ... … Second protrusions, 15, 16… Through holes.

Claims (1)

[Scope of utility model registration request] 1. A resin case having a bottom portion facing a lower surface of a flat battery and a side wall facing a side surface of the battery, the resin casing having an opening at an upper portion, and the resin case being attached to the bottom portion,
In a battery holder provided with a first connection terminal that presses a lower surface of the battery upward and a second connection terminal that is attached to the side wall and presses a side surface of the battery, in the vicinity of the second connection terminal, And a projecting portion for pressing the upper surface of the battery is formed at an upper end of the side wall located at a portion facing the second connection terminal, and a through hole is formed at a bottom portion located at a portion facing the projecting portion. A battery holder characterized by that.