JP5948582B2 - Portable light - Google Patents

Description

  The present invention relates to a portable electric lamp.

Conventionally, a plurality of batteries are used in a portable electric light in order to improve brightness and battery life. At that time, in order to reduce the number of parts, a configuration is adopted in which a plurality of batteries are arranged in a straight line. In that case, reverse connection causes gas generation and leakage of the battery, but the reverse connection prevention structure is complicated (for example, Patent Document 1). Recently, an LED is used as a light source to reduce the power consumption, and the performance of the battery is improved, and there are many small and small shapes (for example, AA dry batteries and AAA dry batteries). When a plurality of thin batteries are arranged in a straight line, the appearance becomes long and thin. The operability of turning on and off is poor, and the usability as a portable light is also poor. In a portable light with a long and thin appearance, the light-emitting part and the battery storage part are pivotably fitted, and a “lighting” position and a “lighting-off” position are provided at the turning position to improve operability by using the whole body as a turning switch. Some of them have side contact conductors and sleeves as switch constituent members, and the electrical circuit is opened and closed depending on the contact state between them (for example, Patent Document 1). If a plurality of batteries are arranged side by side, the reverse connection prevention structure is facilitated, but leads and the like for connecting the respective batteries are required, which increases the number of parts and practically increases part costs and assembly costs. The battery holder has a battery holder that can accommodate a plurality of dry batteries in a case that opens the front end side of the portable light. Both the positive and negative contacts are connected to the front end side of the battery holder, and the rear side of the battery holder is connected in series. A rotating plate having a pair of contacts drawn from both poles of the middle part of the connected dry battery, and a connecting plate facing the pair of contacts is provided behind the battery holder. The electric circuit is opened and closed according to the moving position (see, for example, Patent Document 2). In any of the inventions, a switch component is provided separately from the energization lead for obtaining a voltage from the battery.
Japanese Patent Laid-Open No. 62-264501 JP-A-62-249301

However, in such a conventional portable electric light, when a plurality of batteries are arranged in a straight line, a reverse connection prevention structure is difficult, and in particular, when three or more batteries are arranged, the central battery cannot have a reverse connection prevention structure. Reverse connection may cause battery gas generation or leakage. In addition, when a plurality of thin batteries are arranged in a straight line, the appearance becomes excessively thin and difficult to grip, and it is difficult to operate the switch, resulting in poor usability as a portable light.
When a plurality of batteries are arranged side by side, the reverse connection prevention structure is easy, but leads and the like for connecting the batteries are required, the number of parts increases, and the parts cost and assembly cost increase practically.

  In addition, portable electric lamps that use light-emitting diodes, which have become the mainstream in recent years, are often used with a smaller current than conventional bean balls because of the electrical properties of the light source. Is extremely affected by unstable conditions such as dirt, oxide film formation, or contact surface roughening at the contact points of each battery and the connection lead or at the contact points of the switch section. It is easy to cause lighting flicker due to poor conduction. Therefore, a highly reliable structure that can maintain a stable state of the electrical contact is desired.

  The present invention solves such a conventional problem, can be easily turned on / off, can prevent gas generation and leakage of the battery, can reduce the number of parts, and moreover, the conventional portable light and The purpose is to provide a portable electric light with a structure that realizes the same or better usability and reliability of the electrical contact part and switch function.

In order to solve the above-described problem, a portable electric lamp according to a first aspect of the present invention includes a connection lead that rotatably fits a light emitting unit and a battery storage unit and is connected to a light source of the light emitting unit, In the configuration in which a plurality of batteries can be arranged in the battery housing portion, the center of the terminal of at least one of the electrodes of the at least one battery of the plurality of batteries is separated from the rotation center axis of the light emitting portion and the battery housing portion. The connection lead that is electrically connected to the terminal of one of the battery poles is placed at a position where it is turned on and off according to the rotation of the light emitting part and the battery storage part. The light emitting part and the battery housing part are turned to turn on / off, and the light emitting part starts from an electrical battery contact point between the terminal of the battery electrode and the connection lead. Avoid over the battery contact rotation trajectory. Outer Its either inside or in parallel with the rotation locus on both sides, is provided with a tapered rib having a slope in the direction along the rotational path of the battery contacts.
That is, according to the present invention, the connecting lead for obtaining the voltage from the battery facing the terminal of the battery pole without increasing the number of parts as the switch constituting member constitutes the switch function.
Further, by providing a taper rib having an inclined surface arranged in parallel with the rotation locus of the battery contact, avoiding the rotation locus of the battery contact generated in accordance with the rotation operation of the light emitting unit and the battery storage unit, the battery When the battery rotates, parts other than the battery contacts on the positive or negative electrode of the battery ride on the taper ribs or slide down, which gives a feeling of operation and changes the operating force of the battery. In addition, the friction with the peripheral surface of the connection lead is reduced. In the embodiment of the present invention, the taper angle is about 30 degrees with respect to the polar plane.

According to the present invention, because the structure in which a plurality of batteries are arranged side by side, the reverse connection prevention structure for the positive electrode and the negative electrode of each battery can be easily performed, so that gas generation and leakage of the battery can be prevented without being reverse connected, Excellent safety.
In addition, even if a plurality of small thin batteries (for example, AA batteries or AAA batteries) are arranged side by side, they are of a size that fits in the palm of the hand, and the plurality of batteries are arranged in a straight line. It is easy to grip and is practically effective.
Further, the light emitting unit and the battery storage unit are rotatably fitted, and at least one of the plurality of batteries is disposed at a position away from the rotation center axis of the light emitting unit and the battery storage unit. Since the connection lead that faces and communicates with the terminal of the first electrode functions as a switch for turning on / off in accordance with the rotation of the light emitting unit and the battery housing unit, it is not necessary to increase the number of components as a switch component.
In addition, the taper rib with the slope arranged in parallel with the rotation trajectory of the battery contact causes the battery to ride on the taper rib and slide down when the battery rotates, thereby changing the rotation operation force. A feeling of operation of “lit” and “off” can be obtained. At this time, the taper rib is provided so as to avoid the rotation locus of the battery contact, and a portion of the battery other than the battery contact rides on the taper rib. Therefore, the battery contact does not directly contact the taper rib.
If the battery contacts with the connection lead when the battery rides on the taper rib, and the battery contact comes into contact with the connection lead when the battery slides down the taper rib, the battery contact, connection lead and connection during rotation Friction with the peripheral surface of the lead can be extremely reduced.
Due to the switch operation of turning on and off, the turning operation of the light emitting part and the battery housing part becomes frequent, and each time the battery contact rubs on the connection lead or the connection lead grounding surface, resulting from friction between each material Wear powder, dirt, oxide film, etc. are likely to occur on the battery contacts, causing lighting flicker due to poor conduction. It is possible to effectively prevent these problems and realize a highly reliable switch structure. Furthermore, the switch operation of turning on and off is based on the rotation operation of the light emitting unit and the battery storage unit, so that the operation is clear and easy, easy to recognize even in the dark, and easy to use.

Sectional drawing of the lantern type portable electric lamp in embodiment of this invention Sectional drawing of the battery accommodating part in embodiment of this invention The top view seen from the fitting part side of the battery accommodating part in embodiment of this invention Side view of conductive spring A and insulating plate in the embodiment of the present invention Sectional drawing of the light emission part in embodiment of this invention The bottom view of the light emission part in embodiment of this invention Sectional drawing of the light emission part seen from the arrow A direction shown in FIG. External view of a lantern type portable electric lamp in an embodiment of the present invention

The best mode for carrying out the present invention will be described below with reference to the drawings.
(Embodiment 1)
FIG. 1 is a cross-sectional view of a lantern type portable electric lamp according to an embodiment of the present invention. In FIG. 1, the light emitting unit 1 and the battery storage unit 2 are rotatably fitted by a bayonet method, the light emitting unit 1 has a connection lead A3 and a connection lead B4, and the battery storage unit 2 includes a plurality of batteries 5. They are arranged side by side. A plurality (three in the present embodiment) of batteries 5, 5 ′, 5 ″ (indicated by imaginary lines; the same applies hereinafter) are concentric circles at positions away from the rotation center axis of the light emitting unit 1 and the battery housing unit 2. Is placed on top.
FIG. 2 is a cross-sectional view of the battery housing part 2 in the embodiment of the present invention, and FIG. 3 is a top view as seen from the fitting part side of the battery housing part 2.
2 and 3, a conductive spring A <b> 7 and a conductive spring B <b> 8 are fixed to the battery case 6 in the battery housing 2. The conduction spring A7 conducts the negative electrode of the adjacent battery 5 and the positive electrode of the battery 5 ', and holds the insulating plate 9 on the positive electrode side of the battery 5'. The spring 8a at one end of the conduction spring B8 is in contact with the negative electrode of the battery 5 ", and the other end 8b of the conduction spring B8 is disposed at the center end of the battery case 6. The fitting with the light emitting unit 1 is performed. The joint portion is provided with hook portions 17a and 17b for bayonet-type fitting, and a convex portion 19 for making the opening / closing operation force for attachment / detachment stronger than the switch operation force. Both are disposed at symmetrical positions with the same length, and the interval between the inner wall surfaces of the fitting portion is substantially the same, but a convex portion 19 is provided on one inner wall surface.
4 is a side view of the conduction spring A7 and the insulating plate 9. FIG.
The diameter of the concave portion 9a of the insulating plate 9 is larger than the positive electrode convex portion of the battery and smaller than the negative electrode diameter of the battery, and a part of the conduction spring A7 is arranged at the center of the concave portion 9a. It has a reverse connection prevention structure that can contact and conduct with the convex portion but cannot contact with the negative electrode.
FIG. 5 is a cross-sectional view of the light emitting unit 1 according to the embodiment of the present invention.
In FIG. 5, the light-emitting unit 1 includes an LED 11 serving as a light source in the upper case 10 at the center of rotation, and a light source cover 12 that diffuses light from the LED 11 and a globe 13 that covers the light source cover 12 including the side. Appearance shape is formed.
FIG. 6 is a bottom view of the light emitting unit 1.
In FIG. 6, the upper case 10 fixes the connection lead A3 and the connection lead B4, and the contact portions with the respective battery terminals are arranged so as to be on concentric circles at positions away from the rotation center axis. . Guard ribs 15, 16 a, and 16 b that prevent contact of the negative electrode of the battery are provided in the vicinity of the contact portion between the connection lead A 3 and the battery lead of the connection lead B 4.
The guard ribs 15a, 16a, and 16b are set to be narrower than the battery negative electrode diameter and wider than the battery positive electrode convex diameter, and the steps between the guard ribs 15a, 16a, and 16b, the connection lead A3, and the connection lead B4 are lower than the battery positive electrode protrusion height. Has been. The connection lead A3 and the connection lead B4 provided with the guard ribs 15a, 16a, and 16b in the vicinity can contact the positive electrode convex portion of the battery, but cannot contact the negative electrode, thereby preventing reverse connection.
The upper case 10 elastically holds the center lead 14 at the center of rotation, and the center lead 14 is brought into contact with the other end 8b of the conduction spring B8 when the light emitting unit 1 and the battery storage unit 2 are fitted. . Since the center lead 14 and the other end portion 8b of the conduction spring B8 are located at the center of rotation between the light emitting unit 1 and the battery housing unit 2, the positional relationship between the light emitting unit 1 and the battery housing unit 2 remains unchanged even during the rotation operation. to continue.
Further, the positive terminal of the LED 11 is wired to the connection lead 3, and the negative terminal of the LED 11 is wired to the center lead 14. The center lead 14 is electrically connected to the battery 5 ″ via the conductive spring B8, the battery 5 ″ is electrically connected to the battery 5 ′ via the connection lead B4, and the battery 5 ′ is electrically connected to the battery 5 via the conductive spring A7. . The positive electrode of the battery 5 and the connection lead A3 are conducted, and the LED 11 is lit. When the light emitting unit 1 and the battery storage unit 2 are rotated and the connection between the poles of the batteries 5, 5 ′, 5 ″ and the connection lead A 3 and the connection lead B 4 is cut off, the light is turned off.
In the vicinity of the contact portion between the battery 5 and the connection lead A3, the outer side along the rotation locus is arranged in a relationship parallel to and avoiding the rotation locus of the battery contact starting from the battery contact portion of the connection lead A3. A taper rib A26 that passes through and a taper rib B27 that passes through the inside along the rotation locus are provided. The battery 5 repeats movement along a fixed locus on the connection lead A3 and to a position away from the connection lead A3 according to the rotation of the light emitting unit 1 and the battery storage unit 2. A state in which the battery 5 is separated from the connection lead A3 by the rotation is indicated by an imaginary line as a battery 5a in FIG.
7 is a cross-sectional view of the periphery of the connection lead A3 and the battery 5 as seen from the direction of arrow A shown in FIG. When the battery 5 rotates away from the connection lead A3, both side portions of the positive electrode convex portion of the battery 5 collide with the taper surface A26a and the taper surface B27a formed on the taper rib A26 and the taper rib B27. By configuring, a turning operation force is applied, and an inadvertent switching from “lighting” to “lighting off” is prevented, and an operational feeling is obtained.
The height of the taper rib A26 and the taper rib B27 is set to be higher than the height of the contact portion of the connection lead A3 plus the height of the positive electrode convex portion of the battery 5, and when the battery 5 rides, The connection lead A3 and the battery 5 are surely separated from each other.
It is desirable that the contact angle of the taper surface A26a and the taper surface B27a with respect to the battery 5 is about 30 degrees at which the battery can easily ride on.
At this time, the taper rib A26 and the taper rib B27 are in contact with and rubbed on both sides of the positive electrode convex portion of the battery 5, and the positive electrode convex portion of the battery 5 directly contacts the resin portion such as the taper rib A26 and the taper rib B27. Since there is no contact, no harmful dust or the like is generated on the electrical contact.
When the battery starts to ride on the taper rib A26 / taper rib B27, the battery contact is separated from the connection lead, and when the battery slides down the taper rib, the battery contact contacts the connection lead. Friction between the positive electrode convex portion 5 and the connection lead A3 can be extremely reduced.
In this embodiment, the taper rib A26 and the taper rib B27 are simultaneously provided on both the inside and outside of the rotation locus in order to ensure the strength. However, if there is no problem in the strength due to the material conditions of the upper case 10, the taper rib A There is no functional problem with either one.
In the basic configuration of the portable electric light of this embodiment, the turning operation of the light emitting part and the battery housing part is frequent because of the on / off switch operation, and the battery contact rubs on the connection lead and the connection lead ground surface each time. Friction powder, dirt, oxide film, etc. due to friction between materials are likely to occur on the battery contacts, causing lighting flicker due to poor conduction, but these are effectively prevented and reliable. A high switch structure can be obtained.

Thus, although the contact part of the battery 5 has been described, the same design is applied to the contact part of the battery 5 ′ and the battery 5 ″.
The battery 5 ′ is provided with a guide rib 29 for the battery 5 ′, and a taper surface 29a for the taper surface battery 5 ′ is provided at a position avoiding the turning locus of the contact of the battery 5 ′.
The battery 5 ″ portion is provided with a guide rib 28 for the battery 5 ″ which is higher than the guard rib 16a for preventing reverse connection, and is connected by a tapered surface 28a for the battery 5 ″.
Since the effect is the same, detailed description is omitted.
Further, as shown in FIG. 6, the upper case 10 is provided with hooking portions 18 a and 18 b for bayonet-type fitting and a convex portion 20 for fitting with the battery housing portion 2.
The length of the hanging portion 18a is a size that fits into the interval between the hanging portions 17a and 17b of the battery housing portion 2, but cannot be placed on the side where the convex portion 19 is provided. One hooking portion 18b is shorter than the hooking portion 18a and has a size that fits between the convex portion 19 and the hooking portion 17b. The fitting position with the battery storage portion 2 is determined, and fitting in a symmetric direction is not possible. . At this time, the hook portion 17a is located between the convex portion 20 and the hook portion 18a, and the convex portion 19 is located between the convex portion 20 and the hook portion 18b.
In the fitted state between the light emitting unit 1 and the battery storage unit 2, as shown in FIG. 1, the hanging portions 17a and 17b and the hanging portions 18a and 18b are displaced up and down, so that they can be rotated. However, since the convex portion 19 is located in the vicinity of the hook portion 18b on the side where the convex portion 20 is provided, it cannot rotate clockwise in FIG. 6, but is limited to counterclockwise rotation. In the counterclockwise rotation, the convex portion 20 comes into contact with the convex portion 19, but the rotation is not limited, and the convex portion 20 and the convex portion 19 get over each other so that the battery storage portion 2 can be attached and detached (open / close). Acts as The attachment / detachment operation force is set to be stronger than the switch operation force in order to prevent the battery compartment from being accidentally dropped. Further rotation is possible after the contact between the protrusion 20 and the protrusion 19, and the battery 5, 5 ′, 5 ″ can be rotated to a position where the connection lead A 3 and the connection lead B 4 can be conducted.
FIG. 8 is an external view of a lantern type portable electric lamp according to the embodiment of the present invention.
In FIG. 8, a matching mark 21 is provided on the upper case 10 of the light emitting unit 1, and a lighting mark 22, a light-off mark 23, and a detachment mark 24 are displayed on the battery case 6 of the battery storage unit 2. . In the drawing, the alignment mark 21 is aligned with the extinction mark 23 to indicate the “extinction” state. When the alignment mark 21 is rotated so as to be aligned with the lighting mark 22, the batteries 5, 5 'and 5 "are electrically connected to the connection leads 3 and 4, respectively. When the alignment mark 21 is rotated so as to be aligned with the detachment mark 24, The light emitting unit 1 can be removed from the battery storage unit 2 and the battery can be replaced.
The contact position between the convex portion 19 and the convex portion 20 is arranged at a position where the alignment mark 21 is between the extinguishing mark 23 and the detachment mark 24, and the convex height of the convex portion 19 and the convex portion 20 is set at the time of opening and closing. It is set so that the load force that passes over and passes each convex part is stronger than the switch operating force. Opening and closing operation is possible.
In description of embodiment of this invention, although the load force by the convex height of the convex part 19 and the convex part 20 was set, you may give load force with another components which obtains elastic force (not shown).
The lantern-type portable electric lamp in the embodiment of the present invention can be used by being placed on a table or the like in the upright direction as shown in FIG. It can also be used for ordinary floodlights by holding the battery compartment.
As described above, the reverse connection prevention structure prevents battery gas generation and leakage, but eliminates (or eliminates) switch components and replaces the switch function by rotating the light emitting part and battery storage part. In addition, a structure such as a tapered rib that avoids the turning locus of the battery contact in the light emitting part eliminates the causes of various lighting flickers caused by friction between the battery contact, the connection lead, and the peripheral surface, and a high switch. We offer reliable portable electric lamps.

  The portable electric lamp according to the present invention has been described with reference to an embodiment as a lantern type portable electric lamp. The present invention provides a portable electric light having a structure in which battery electrode terminals are used as a part of a switch configuration, switch operation is easy, battery gas generation and leakage can be prevented, and the number of parts can be reduced. Therefore, it can also be used for ordinary floodlight flashlights, and can also be used for battery-applied equipment by replacing the light source with a motor.

1 Light emitter
2 Battery compartment
3 Connection lead A
4 Connection lead B
5'5 'battery
5a Imaginary line showing a state in which the battery 5 is separated from the connection lead
6 Battery case
7 Conducting spring A
8 Conducting spring B
8a Spring part of conduction spring B
8b The other end of the conductive spring B
9 Insulation plate
9a Insulating plate recess
10 Upper case
11 LED
12 Light source cover
13 Globe
14 Center Lead
15 Guard rib of connecting lead A 16a, 16b Guard rib of connecting lead B 17a, 17b Hanging part for bayonet of battery housing part 18a, 18b Hanging part for bayonet of light emitting part
19 Convex
20 Convex
21 Go mark
22 Lighting mark
23 Unlit mark
24 Desorption mark
25 through holes
26 Taper rib A
26a Taper surface 27 in taper rib A Taper rib B
27a Tapered surface 28 in taper rib B Battery 5 "guide rib 28a Battery 5" taper surface 29 Battery 5 'guide rib 29a Battery 5' taper surface

Claims (1)

A light-emitting part and a battery housing part are rotatably fitted, and have a connection lead connected to the light source of the light-emitting part,
In the configuration in which a plurality of batteries can be arranged in the battery housing portion,
The center of at least one of the terminals of the plurality of batteries is arranged at a position away from the rotation center axis of the light emitting unit and the battery storage unit, and
The connection lead that conducts while facing the terminal of one of the poles of the battery is disposed at a position that becomes conductive and non-conductive according to the rotation of the light emitting part and the battery housing part, and the light emitting part By turning the battery compartment and turning it on / off,
In the light emitting portion, avoid the battery contact rotation locus starting from the electric battery contact between the battery pole terminal and the connection lead, and either inside or outside the battery contact rotation locus in parallel. Alternatively, the portable electric lamp is characterized in that tapered ribs having slopes in the direction along the rotation locus of the battery contacts are provided on both sides thereof.