JP2550123Y2 - Battery support terminal structure - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a structure of a support terminal in a battery holder for storing and holding a cylindrical battery such as a dry battery, and more specifically, protruding from a single surface of the battery. The present invention relates to a support terminal structure for a battery in which an anode side is securely held with electrical contact.

[Conventional technology]

Portable electrical devices such as tape recorders, radios,
Generally, televisions and the like are driven using cylindrical dry batteries. In this type of dry battery, a cylindrical anode is protruded at one end of a cylindrical main body, and a flat cathode is provided at the other end. On the other hand, a holder for holding such a dry battery inside or outside the device is provided with an anode support terminal and a cathode support terminal which naturally contact the anode and the cathode and elastically support along the axis of the dry battery. I have.

As these support terminals, for example, those configured to bend a conductive spring material and to secure and support the elasticity by bending, or to configure the cathode support terminal with a coil spring, There is one that supports the terminal by pressing it against the supporting terminal.

[Problems to be solved by the invention]

By the way, in the case of using the above leaf spring,
In consideration of ensuring the elasticity of the bent spring plate and the ease of attaching and detaching the dry battery, the spring plate is bent from the detachable side (entrance side) of the dry battery toward the back side. Therefore, the elastic force by the support terminal has a component force in the direction of the entrance perpendicular to the axis in addition to the direction of the axis of the dry battery. Therefore, when taking out the installed dry battery, if one end of the dry battery main body is lightly pulled out from the holder side to the detachable side, it can be taken out with a relatively light force by the elastic force of the support terminal.

In the case of using a coil spring for the cathode support terminal,
Since the coil spring exerts an elastic force only in the axial direction, there is a problem that if any force is applied from a direction perpendicular to the axis, the coil spring comes off immediately. In other words, in these support terminal structures, since the force for restraining the dry battery on the holder side by the support terminal does not act, when both are perpendicular to the axial direction and an external force acts in the direction toward the detachable side, the dry battery will come off. It is no longer useful as a power source. In this case, since the contact area of the anode of the battery with the anode support terminal was small, it was particularly easy to come off the support terminal.

In order to avoid this, a holder for holding this type of battery is provided with a cover for preventing the battery from being detached from the holder, in other words, a holding member. In this case, since the weight of the battery is relatively large, a strong cover is required to securely hold the battery.

However, attaching a sturdy cover to the battery holder not only increases the weight, but also naturally increases the cost. This increase in weight is particularly problematic for portable electrical devices that are promoting weight reduction.

The present invention has been made in view of the above circumstances of the related art, and an object thereof is to provide a battery support terminal structure which is hard to be detached even when an external force is applied to the battery and does not require a strong holder. It is in.

[Means for solving the problem]

In order to achieve the above object, the present invention provides an anode support terminal and a cathode support terminal that come into contact with the anode and the cathode, respectively, of a cylindrical battery having an anode protruding at one end and a flat cathode at the other end. And a holder that supports the anode support terminal and the cathode support terminal so as to face each other and has a battery mounting surface, and elastically supports the battery between the anode support terminal and the cathode support terminal. In the support terminal structure, the anode support terminal elastically abuts the top surface of the anode from the axial direction of the battery, and the battery includes the anode support terminal and the cathode support terminal. When inserted between the elastically deformed to allow the insertion of the anode, and when the anode is once inserted into a predetermined position and the top surface of the anode is pressed against the first terminal portion, A second terminal portion having an engagement hole for preventing the battery from dropping out of the holder by engaging a part of the peripheral surface of the anode opposite to the battery mounting surface. It is characterized by having.

[Action]

In the above configuration, in order to insert a battery (for example, a cylindrical battery such as an AA battery) between the support terminals, first, a flat cathode of the battery is pressed against the cathode support terminal, and a convex The anode is inserted so as to be pushed into the anode support terminal side.
Then, the second terminal portion is pushed by the anode and warps backward (toward the anti-cathode support terminal side) to allow movement of the anode in the insertion direction, and the battery is placed on the battery placement surface of the holder. At this time, the anode is fitted into the engagement hole, and a part of the peripheral surface of the anode opposite to the battery mounting surface is engaged with the edge of the engagement hole. Thereby, movement in a direction perpendicular to the axis of the battery is restricted. At the same time, the first terminal portion elastically contacts the top surface of the anode from the axial direction of the battery,
The battery is supported between the cathode support terminal. Thereby, the battery is held from both the axial direction and the direction perpendicular to the coaxial line.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a main part of an anode support terminal according to a first embodiment of the present invention. In FIG. 2, an anode support terminal 1 includes an engagement support piece 5 having an engagement hole 4 with which a peripheral surface of an anode 3 having a convex shape is formed, as shown in FIG. And a contact piece 6 elastically contacting the top surface from the axial direction of the dry battery 2.

That is, the anode support terminal 1 is formed of a conductive spring material such as phosphor bronze or stainless steel plated with nickel for a spring into a plate shape, and has one end slightly larger than the diameter of the anode 3 of the dry battery 2. The engaging hole 4 is formed by cutting a groove having a width along the longitudinal direction, and a portion where the engaging hole 4 is formed is bent to form an engaging support piece 5, and the anode 3 It is formed by cutting out a cantilevered contact piece 6 at a position where the top surface contacts, and bending and projecting it to the side facing the engagement support piece 5. Thus, when the dry battery 2 is inserted between the anode support terminal 1 and a cathode support terminal 8 described later, the engagement support piece 5 is elastically deformed in a direction approaching the contact piece 6 by being pushed by the anode 3. Then, when the engagement of the peripheral surface of the anode 3 with the engagement hole 4 is completed, the deformation of the engagement support piece 5 is eliminated, and at the same time, the contact piece 6 elastically contacts the top surface of the anode 3. Therefore, as shown in FIG. 3, the anode 3 of the dry battery 2 is held so as not to fall off from the engagement hole 4.

In the state shown in FIG. 2, the dry battery 2 is placed between the cathode support terminal 8 which is in contact with the cathode 7 and is formed of the same conductive spring material and the contact piece 6 of the anode support terminal 1 described above. It is elastically supported, and its position is regulated so as not to be separated from the support terminals 1 and 8 by engagement with the engagement hole 4. Thereby, even if an impact or an unintended external force is applied, there is no possibility that the dry battery 2 comes off between the support terminals 1 and 8. Therefore, it is not necessary to particularly provide a holding means such as a cover or a holding member for preventing the dry battery 2 from coming off. As shown in FIG.
And the cathode support terminal 8 has a pair of side walls facing each other,
A bottom surface 10 therebetween is disposed along both side walls of a holder 9 having a U-shaped cross section, which is a battery mounting surface. It is projected into. The battery 2 is attached to this holder 9
Is pressed toward the bottom surface 10 as a battery mounting surface from the upper portion thereof. A part of the battery mounting surface side engages with the engagement hole 4 and is held undetachably.

In order to remove the dry battery 2 from between the two support terminals 1 and 8, pushing the end 2a of the dry battery 2 on the cathode 7 side toward the anode support terminal 1 in FIG. Are elastically deformed outward, and the cathode 7 is separated from the cathode support terminal 8, so that the cathode 7 can be removed from the cathode side by pulling it upward.

FIG. 3 shows an anode support terminal 11 according to a second embodiment of the present invention.
FIG. In the following description, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted.

As shown in FIG. 4, the anode support terminal 11 has an engagement support piece 13 having an engagement hole 12 with which the anode 3 of the dry battery 2 is engaged. And a contact piece 14 elastically contacting from the axial direction. Engagement support piece
Reference numeral 13 is formed by bending the same plate-like spring material as in the first embodiment into a substantially crank shape so as to elastically press the dry battery 2 along the axial direction. An engaging hole 12 is cut out in the upper portion of the spring material where the crank is formed, and a cantilevered portion in which the cut out upper end is a free end is a contact piece 14.

The engagement hole 12 has a width slightly larger than the diameter of the anode 3 of the dry battery 2 as in the first embodiment, and is intentionally engaged by the elasticity of the engagement support piece 13 itself when the anode 3 is engaged. It will not come off unless you cancel the joint state. Also, the contact piece 14
Is formed in such a shape as to come into contact with the top surface of the anode 3 projecting from the engagement hole 12 and to elastically press the anode along the axis toward the cathode support terminal 15.

According to this configuration, when the dry battery 2 is inserted, the engagement support piece 13 is pushed by the anode 3 and bends toward the anti-cathode support terminal 15 side, and when the anode 3 completes fitting into the engagement hole 12. As in the first embodiment, a part of the peripheral surface of the anode 3 on the side opposite to the battery mounting surface is pressed down from above, and both support terminals 11 and 15 are pressed.
Regulation of departure from By this engagement, the anode 3 protrudes from the engagement hole 12 as described above, and the contact with the contact piece 14 becomes possible. Thereby, even if an impact or an unintended external force is applied, there is no possibility that the dry battery 2 comes off from between the support terminals 11 and 15. Therefore, even in this embodiment, a strong cover is not required.

When removing the battery 2, the upper end 16 of the engagement support piece 13 is pushed outward to release the engagement state between the engagement hole 12 and the anode 3, the regulation is released, and the battery 2 can be taken out as it is.

[Effect of the invention]

As described above, the anode supporting terminal is elastically abutted against the top surface of the convex anode from the axial direction of the battery.
The terminal portion of the battery is elastically deformed when the battery is inserted to allow the anode to be inserted, and the battery is mounted on the battery mounting surface of the holder,
A second terminal having an engagement hole for engaging a part of the peripheral surface of the anode on the side opposite to the battery mounting surface to prevent the anode from falling off when the first terminal portion is pressed against the top surface of the anode. According to the present invention, the battery is inserted between the anode support terminal and the cathode support terminal, the second terminal portion is bent and the anode is fitted into the engagement hole, and the battery is connected. Since the movement in the direction perpendicular to the axis is restricted, the battery does not fall out of the holder even when an external impact is applied, and therefore, there is no need to attach a holding member such as a cover to the holder.

[Brief description of the drawings]

1 and 2 are views for explaining the first embodiment. FIG. 1 is a perspective view of a main part of an anode support terminal, FIG. 2 is an explanatory view showing a mounted state of a dry battery, FIG. FIG. 4 shows the second
FIG. 3 is a perspective view of a main part of an anode support terminal, and FIG. 4 is an explanatory view showing a mounted state of a dry battery. In the figure, 1, 11 is an anode support terminal, 2 is a dry cell, 3 is an anode,
4, 12 are engaging holes, 5, 13 are engaging support pieces, 6, 14 are contact pieces, 7
Is a cathode, and 8, 15 are cathode support terminals.

Claims (1)

(57) [Scope of request for utility model registration] 1. An anode support terminal and a cathode support terminal which respectively contact the anode and the cathode of a cylindrical battery having an anode protruding at one end and a flat cathode at the other end, and the anode support terminal. And supporting the cathode support terminal facing each other, and a holder having a battery mounting surface, wherein the battery support terminal structure elastically supports the battery between the anode support terminal and the cathode support terminal, A first terminal portion in which the anode support terminal elastically contacts the top surface of the anode from the axial direction of the battery;
When the battery is inserted between the anode support terminal and the cathode support terminal, the battery is elastically deformed to allow insertion of the anode, and the anode is once inserted into a predetermined position and the top surface of the anode is An engaging hole for preventing the battery from dropping from the holder by being engaged with a part of the peripheral surface of the anode opposite to the battery mounting surface when pressed against the first terminal portion; And a second terminal portion having the following structure.