JP2001305624A - Camera battery housing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera battery housing device permitting to easily load and release batteries into a battery magazine and having small contact resistance without danger of causing contact failure. SOLUTION: This camera battery housing device is provided with a plurality of battery loading parts (H1, H2) fixed side by side in a battery magazine (20) arranged so as to be housed in a battery housing (10), an inter-battery shorting piece (61) for short circuiting between a positive side electrode and a negative side electrode to be connected with each other of a pair of adjacent batteries (32, 33) among the batteries (31, 32, 33, 34) to be loaded into the battery loading parts (H1, H2) with their polarities alternately reversed, a displacement spring (63) for displacing the inter-battery shorting piece (61) so that it (61) is abutted to a battery support surface of the battery loading parts (H1, H2), and pressure-contact springs (64, 65) for pressure-contacting the inter-battery shorting piece (61) to the positive and negative electrodes of a pair of the batteries (32, 33) against the displacement force (P1) of the displacement spring (63) when the battery magazine (20) is housed into the battery housing (10).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera battery storage device capable of detachably storing a battery magazine in a battery storage chamber formed in a camera body.

[0002]

2. Description of the Related Art In a camera battery storage device, a battery magazine provided so that a camera battery can be loaded is provided so as to be removably stored in a battery storage room formed in a camera body. There is something. The battery loading section of the battery magazine is provided with a contact made of a metal elastic member or the like so that the loaded battery can be electrically and mechanically stably conducted and held. In order to establish electrical continuity between the inner surface of the battery storage chamber and the outer surface of the battery magazine, conductive terminals made of a metal elastic member or the like are also provided.

[0003] The tip of a conductive spring provided on a device body side corresponding to the battery storage chamber is brought into direct contact with a battery electrode in the storage case through a hole provided in a battery storage case corresponding to the battery magazine. Japanese Patent Application Laid-Open No. H10-112303 discloses an apparatus in which electrical conduction between the device body and the battery is achieved, and the battery housing case can be discharged from the housing chamber by the spring pressure of the conductive spring. I have.

Conventionally, coil springs or leaf springs have often been used alone as the above-mentioned contacts or conductive springs.

[0005]

The conventional camera battery storage device has the following problems. In the case of using a coil spring as the contact spring provided in the battery loading portion of the battery magazine or the conductive spring provided in the main body of the device, since the conductor length is inevitably long, the electric resistance is compared. Large power loss. For this reason, there is a problem that the battery life is shortened.

In the case of using a leaf spring as the contactor or the conductive spring, the electric resistance is small, but the stroke is short, so that it is difficult to secure a stable contact pressure for each battery. In other words, there is a problem that there is no room for variation in battery length.

[0007] If the spring pressure is excessively increased to reduce the contact resistance, it becomes difficult to perform operations such as loading and unloading the battery. Conversely, when the spring pressure is reduced,
Insufficient contact pressure may occur, resulting in poor contact due to increased contact resistance.

The present invention has been made based on the above circumstances, and an object of the present invention is to provide a camera battery storage device provided with a contact mechanism having the following advantages.

(A) Since both the electric resistance and the contact resistance are small, the power loss is small and the life of the battery is prolonged.

(B) Since the stroke is long, a predetermined contact pressure can be ensured with a sufficient margin even if there is considerable variation in battery lengths.

(C) The battery can be loaded and unloaded from the battery magazine very easily.

[0012]

In order to solve the above-mentioned problems and to achieve the object, a camera battery storage device of the present invention is configured as follows.

(1) A camera battery storage device according to the present invention comprises: a battery storage room provided in a camera body; a battery magazine provided so as to be stored in the battery storage room; A plurality of formed battery loading portions, and a positive electrode and a negative electrode to be interconnected of an adjacent set of batteries among batteries that are alternately loaded with the polarity reversed for these battery loading portions. An inter-cell short-circuit piece for short-circuiting between the batteries, a biasing spring for biasing the inter-cell short-circuit piece in a direction away from the positive and negative electrodes of the set of batteries, and the inter-cell short-circuit piece A biasing spring for biasing the short-circuit piece so as to be in contact with the battery support surface of the loading portion, and the battery-to-battery short-circuit piece when the battery magazine is housed in the battery housing chamber. Against the biasing force of the serial biasing spring it is characterized by comprising a pressure spring for pressing against the positive electrode and the negative electrode of the set of batteries.

(2) The camera battery storage device according to the present invention is the camera battery storage device according to the above (1), wherein the press-contact operation by the press-contact spring is performed in a through hole formed in a battery loading portion of the battery magazine. It is characterized by being performed through.

(3) The camera battery storage device according to the present invention is the camera battery storage device according to the above (2), wherein the press-contact spring comprises a coil spring.

(4) The camera battery storage device according to the present invention is the camera battery storage device according to the above (1), wherein the inter-battery short-circuiting piece has a contact member made of a good conductor. And

(5) The camera battery accommodating device of the present invention is the camera battery accommodating device according to the above (1) or (4), wherein the inter-battery short-circuit piece joins a conductive member to an insulating member. It is characterized by having been done.

[0018]

FIG. 1 is a perspective view showing the appearance of an electronic camera provided with a camera battery storage device according to an embodiment of the present invention. FIG. 2 is a diagram showing a schematic configuration of a camera battery storage device according to one embodiment of the present invention. A state in which a battery unit (a magazine-loaded battery) is removed from a battery storage chamber formed in the camera body 1 is shown in the bottom of the camera. It is the perspective view seen from the side.

In FIG. 1, reference numeral 1 denotes a camera body, which includes a release button 2, a pop-up strobe 3, a finder 4, and the like. A photographing lens barrel 5 is mounted on the front of the camera body 1. This taking lens barrel 5
Shooting lens 6, focus ring 7, zoom ring 8,
And so on. Further, at one end (left end in the figure) of the camera body 1, there is provided a battery storage room 10 provided so as to be able to store a battery unit described later. The outer peripheral portion of the battery storage room 10 is a grip portion G for the user to hold the camera body 1 during shooting.

As shown in FIG. 2, an opening 11 is formed at the bottom of the battery storage chamber 10, and a battery unit BU, which is a magazine-loaded battery, is inserted into the battery storage chamber 10 through the opening 11. It can be inserted and removed freely. In this battery unit BU, four batteries 32, 33, 34 (31 not shown) are loaded in a battery magazine 20 with a predetermined polarity. Although the battery magazine 20 will be described in detail later, a lid 21 integrated as a magazine holding plate is provided on one end surface thereof. The lid 21 is for closing the opening 11 so that it can be opened and closed.

Between the opening 11 of the battery storage room 10 and the lid 21 of the battery magazine 20, the battery storage room 1 is provided.
The battery unit BU stored in the battery storage room 1
A lock mechanism 40 for locking the lid 21 is provided so that the cover 21 does not protrude outside.

The lock mechanism 40 includes a plurality of (two in this embodiment) storage chamber side engaging portions 41 and 42 disposed around the opening 11, and these storage chamber side engaging portions 41. ,
A plurality of (two in this embodiment) lid-side engaging portions 4 arranged around the lid 21 so as to correspond to
3, 44 (see FIG. 3), and these lid side engaging portions 43,
An operation section 45 is provided for engaging and disengaging the 44 with the corresponding storage chamber side engaging sections 41 and 42 substantially simultaneously (or non-simultaneously if necessary).

As described above, each of the storage chamber side engaging portions 41 and 42 and each of the lid side engaging portions 43 and 44 are provided with the corresponding engaging recesses as will be apparent from the following description. (Engaging groove, L-shaped engaging claw, etc.) and an engaging projection (engaging piece, etc.) constitute a locking means.

In this embodiment, the opening 1
1 is provided with an engagement groove 41 as a first engagement portion provided from the center of the camera body. Opening 11
An engaging element 42 is provided as a second engaging section provided from the peripheral portion of the camera body in the above.

The engaging groove 41 as the first engaging portion forms an outer peripheral wall of the camera body 1 on an opening surface of a half-moon-shaped recess 41a formed in a partition wall from the center of the camera body. Of the cover member 41b. The engagement element 42 as the second engagement portion is provided at an end of a hard plate member 42 a made of metal, for example, provided along the inner peripheral surface of the battery storage chamber 10. An engaging claw 42b bent into an L-shape capable of engaging with 44 is formed. The engaging claw 42b may be formed in a U shape.

The operation section 45 includes an operation knob 45 a pivotally supported at the center of the outer surface of the lid 21 so as to be rotatable.
A rotation shaft 45b for transmitting the turning power of the operation knob 45a to the inner surface side of the lid 21.

FIG. 3 shows the configuration of the engaging pieces 43 and 44 as the lid-side engaging portions, which are a part of the lock mechanism 40, by using the operating portion 4.
5A and 5B are perspective views of the inner surface of the lid 21 viewed from slightly obliquely above, with FIG. 5A showing an unlocked state and FIG. 5B showing a locked state.

The engaging pieces 43 and 44 are formed of, for example, metal in a rectangular plate shape, and are rotatably supported along the inner surface of the lid 21. The one engagement piece 43 is a main engagement piece provided so as to rotate together with a rotation operation of the operation knob 45a, and the rotation of the engagement piece 43 with respect to the rotation shaft 45b. The moving shaft hole is fitted so as to be relatively non-rotatable and detachable. A tooth portion 43 a is provided at a base end of the main engagement piece 43. The other engagement piece 44 is a sub-engagement piece that is provided so as to rotate in conjunction with the main engagement piece 43, and is provided with respect to the cylindrical projection 21 a protruding from the inner surface of the lid 21. The pivot shaft hole of the engagement piece 44 is fitted so as to be rotatable and detachable. At the base end of the sub-engaging piece 44, there is provided a tooth part 44a which meshes with the tooth part 43a of the main engaging piece 43.

When the operation knob 45a is rotated to the unlock position A as shown by the arrow V in FIG. 3A, the main engagement piece 43 and the sub-engagement piece 44 are turned to the arrows M1 and M1.
It rotates to the position shown in FIG. As a result, the distal ends 43b and 44b of both the engagement bodies 43 and 44 are in a state of being drawn into the range of the inner surface area of the lid 21. In this state, the tip 43b of the main engagement piece 43 is separated from the engagement groove 41, and the tip 44b of the sub-engagement piece 44 is separated from the claw 42b of the engagement element 42.

When the operation knob 45a is turned to the lock position B as shown by an arrow W in FIG. 3B, the main engagement piece 43 and the sub-engagement piece 44 are moved as shown by arrows N1 and N2. Rotates to the illustrated position. As a result, both engagement members 4
Each of the tips 43b and 44b of the cover members 3 and 44 is in a state where it has almost escaped out of the range of the inner surface region of the lid 21. In this state,
The tip 43b of the main engagement piece 43 engages with the engagement groove 41,
The tip 44b of the sub-engaging piece 44 is
Will be engaged.

Each of the engagement pieces 43 and 44 has a base end that meshes with the outer peripheral surface of the rotation shaft 45b of the operation portion 45, and both of the engagement pieces 43 and 44 move together with the rotation of the operation knob 45a. It may be configured to simultaneously rotate in the opposite direction to the rotation direction of the rotation shaft 45b.

FIGS. 4A and 4B are views showing the overall structure of the battery magazine 20. FIG. 4A is a perspective view of the battery magazine 20 as viewed obliquely from above. FIG. It is the perspective view seen. The battery magazine 20 shown here is obtained by combining several parts integrally formed of, for example, a hard synthetic resin and integrating them.

As shown in FIGS. 4A and 4B, the lid 21 integrated as a magazine holding plate is provided on one end surface of the battery magazine 20, and the other end surface of the magazine 20 is provided. Is provided with a magazine end plate 22 so as to face the magazine holding plate.

As described above, the lid 21 and the magazine end plate 22 which are disposed to face each other are connected by a pair of connecting members 23 and 24 (24 not shown) which are disposed in parallel at a predetermined distance. Two locations at approximately 180 ° different positions on the facing surface are interconnected.

Between the cover 21 and the magazine end plate 22, a pair of holder members 25 and 26 are supported by the pair of connecting members 23 and 24 (not shown) on both side surfaces in a back-to-back manner. And the pair of connecting members 23, 2
4 are arranged in parallel. The pair of holder members 2
Nos. 5 and 26 have two gutter-shaped portions formed with a semicircular inner surface in parallel so that two batteries alone can be loaded. On both sides of the two gutter-shaped portions of the holder member 25, a pair of holding claws 25 are respectively provided.
a, 25b and 25c, 25d are provided. Similarly, a pair of holding claws 26a, 26b and 26 are provided on both sides of the two gutter-shaped portions of the holder member 26, respectively.
c, 26d (26c, 26d are not shown) are provided.

The space surrounded by the opposing surfaces of the lid 21 and the magazine end plate 22 and the inner surface of the holder member 25 constitutes a battery loading section H2. Similarly, a space surrounded by the opposing surfaces of the lid 21 and the magazine end plate 22 and the inner surface of the holder member 26 constitutes a battery loading portion H1.

A positive contact 27 and a negative contact 28 integrally formed of a metal member such as brass are provided on one of the opposed battery support surfaces in the battery loading portion H2, that is, on the inner surface of the lid 21. I have. Although not shown, one of the opposing battery support surfaces in the battery loading portion H1;
That is, the positive contact 27 and the negative contact 28 formed in the same manner as described above are also provided on the inner surface of the lid 21.

The positive contact 27 is in contact with the positive electrode of each of the batteries 31 and 33 loaded in each of the battery loading sections, and the negative contact 28 is in contact with the batteries 32 and 32 loaded in each of the battery loading sections. 34, respectively. The power supply from the battery thus loaded is made possible.

The positive contact 27 and the negative contact 28 are provided with a negative electrode / reverse contact preventing mechanism 29 and a positive electrode / reverse contact preventing mechanism 50, respectively. These reverse contact prevention mechanisms protect the electronic circuit and the like provided in the camera body 1 when the battery is loaded in the battery loading section in the reverse polarity, that is, when the battery is reversely inserted, This is a mechanism for preventing each electrode of the battery from coming into contact with each contact so as to secure safety inside the camera body 1.

The negative electrode / contact prevention mechanism 29 provided on the positive contact 27 is a conventionally used mechanism, and is provided at two places sandwiching the center point of the positive contact 27. A pair of insulating ridges 29 is formed through the slit-shaped groove.
a, 29b are projected from the outer surface, and the pair of insulating ridges 29a, 29b support the flat surface of the negative electrode of the battery inserted reversely, so that the negative electrode contacts the positive contact 27. This is to prevent contact. Since the center of the positive electrode of the battery protrudes outward, the protruding positive electrode can contact the positive contact 27 through the space between the pair of insulating ridges 29a and 29b. .

The positive electrode / contact prevention mechanism 50 provided on the negative contact 28 has an annular shape having a through hole 51a at the center and a tongue piece 51b at the free end, as described later. An electrode holding piece 51 and the like are provided. Hereinafter, the positive electrode / contact prevention mechanism 50 will be described in detail.

FIG. 5 is a view showing a specific configuration of the plus side electrode / contact prevention mechanism 50. FIG. 5 (a) is a side view showing a state in which a battery is normally loaded, partially cut away, and FIG. FIG. 5 is a side view showing a state in which a battery is reversely inserted, partially cut away. (C)-(e) are diagrams showing modified examples.

As shown in FIGS. 5A and 5B, the negative contact 28 is made of a leaf spring bent in a U-shape, one of which is an electrode holding piece 51 and the other is an external. A terminal piece 52 is provided. The external terminal piece 52 is fixed to the inner surface of the lid 21 by an appropriate means, and a part of the external terminal piece 52 can be electrically connected to the outside (an adjacent battery or the like).

The free end of the electrode holding piece 51 is given a predetermined displacement force so as to be displaced away from the external terminal piece 52. The displacement D of the free end of the electrode holding piece 51 is located at a predetermined position in the direction in which the free end of the electrode holding piece 51 is displaced.
Is provided to limit the pressure. The stopper 53 is used to connect the edge of the wall of the battery loading section to the lid 21.
Are opposed to each other with a gap D therebetween.
Therefore, when the battery 34 is not loaded, the tongue piece 51b provided at the free end of the electrode holding piece 51 comes into contact with the stopper 53 at a predetermined pressure. At this time, the entire free end of the electrode holding piece 51 is stably held in a state of being separated from the inner surface of the lid 21 which is the battery supporting surface of the battery loading portion by a predetermined distance D.

As shown in FIG. 4, the electrode holding piece 51 has a substantially annular shape as a whole, and the above-described through hole 51a is provided at the center thereof. The diameter of the through-hole 51a is smaller than the negative electrode of the battery 34 and larger than the positive electrode.

Therefore, as shown in FIG. 5A, when the battery 34 is loaded with a normal polarity, the negative electrode of the battery 34 reliably contacts the negative contact 28. Further, as shown in FIG. 5B, when the battery 34 is inserted reversely, the positive electrode 34a of the battery 34 penetrates the negative contact 28 in a non-contact state and comes into contact with the insulating spacer 54. .

As shown in FIG. 5 (c), the insulating spacer 54 is formed such that the projecting portion formed on a part of the lid 21 is passed through a through hole provided in the external terminal piece 52 and the electrode holding piece 51 is formed.
And the upper end thereof protrudes between the positive electrode 34a and the base portion 34b of the positive electrode 34a. It is a support surface 54a for supporting at a height level that does not contact the surface. This support surface 54
An annular protrusion 54b such as a protrusion formed on the bottom of the bowl is formed on a. This annular projection 54
b denotes a tip of the positive electrode 34a, and a peripheral surface of the positive electrode 34a is a through hole 51 of the electrode holding piece 51.
This is for regulating the position so as not to contact the inner peripheral surface of a.

Thus, the insertion depth of the positive electrode 34a is restricted by the support surface 54a of the insulating spacer 54, and the center position is restricted by the inner peripheral surface of the annular projection 54b. Accordingly, it is possible to prevent the insertion depth of the plus side electrode 34a from being too deep, so that the base end 34b of the plus side electrode 34a comes into contact with the surface of the negative contact 28, and
It is possible to prevent the center position of the positive electrode 34a from being shifted in the lateral direction and the peripheral surface of the electrode 34a from contacting the inner peripheral surface of the through hole 51a of the electrode holding piece 51. Thus, the positive electrode 34a can be properly prevented from contacting the negative contact 28.

As shown in FIG. 5D, an insulating member 55 may be fitted into the through hole 51a, and the insulating member 55 may be held by an L-shaped holding member 56. In this case, it is necessary that the surface of the insulating member 55 does not protrude beyond the same surface as the surface of the negative contact piece 28 so as not to hinder the contact of the negative electrode. In the above case, the stopper 53 may or may not be provided.
With the configuration as shown in FIG. 5D, when the battery 34 is inserted reversely, the tip of the positive electrode 34 a of the battery 34 comes into contact with the surface of the insulating member 55, and the hole of the negative contact 28. And does not project to the opposite side. Therefore, contact between the positive electrode 34a of the battery 34 and the negative contact 28 can be more reliably avoided.

The negative contact 28 is not necessarily U
The electrode holding piece 51 and the external terminal piece 52 need not be bent in a letter shape, and may have a structure in which the electrode holding piece 51 and the external terminal piece 52 are connected in a step-like manner via a step.

Returning to FIG. As shown in FIGS. 4A and 4B, the connecting member 23 is inserted from the inner surface of the magazine end plate 22.
The relay contact mechanism 60 is provided in a region reaching the inner surface of the contact element. As will be described later, the relay contact mechanism 60 includes a negative electrode of the battery 33 loaded in the battery loading section H2 having the holder member 25 and a battery 32 loaded in the battery loading section H1 having the holder member 26. And a short-circuiting piece 61 between the batteries for short-circuiting the positive electrode.

As will be described in detail later, the inter-battery short-circuiting piece 61 is, for example, a conductive member having contact portions made of a good conductor at both ends on an insulating member 61a having a somewhat rectangular shape having some flexibility. It has a structure in which a member 61b is attached. The central portion of the insulating member 61a is connected to one end of the support shaft 62. The support shaft 62 is provided so as to be movable in the axial direction of the battery, and is provided with a predetermined biasing force by a biasing spring 63 so as to be biased toward the magazine end plate 22.

In this way, the inter-cell short-circuiting piece 61 is always given a biasing force by the biasing spring 63 so as to be in close contact with the inner surface of the magazine end plate 22. As a result, the operation of loading and unloading the battery from and to the battery loading unit is less likely to be hindered by the presence of the inter-battery short-circuit piece 61, and the loading and unloading operations can be performed smoothly.

FIGS. 6A and 6B are diagrams showing the structure of the relay contact mechanism 60 described above. (A) and (b) of FIG.
, H1 indicates a battery loading portion having the holder member 26, and H2 indicates a battery loading portion having the holder member 25. One battery loading section H1 has a battery 3
1, 32 are loaded with the polarity reversed, and the other battery loading section H2 is loaded with batteries 33, 34 with the polarity reversed. Note that the polarity of the batteries 31 to 34 with respect to the loading portion is predetermined so that the polarity of the battery 32 of the battery loading portion H1 and the polarity of the battery 33 of the battery loading portion H2 are also reversed.

The positive electrode and the negative electrode of the pair of adjacent batteries 32 and 33 to be connected to each other can be short-circuited by the inter-cell short-circuit piece 61. However, as described above, the inter-cell short-circuiting piece 61 is biased by the biasing spring 63 so as to be in close contact with the inner surface of the magazine end plate 22, and in this state, the inter-cell short-circuiting piece 61 contacts each electrode. I haven't. However,
When the battery magazine 20 loaded with batteries is stored inside the battery storage room 10, the inter-battery connecting piece 61 becomes the battery storage room 1.
0, a pair of pressure contact springs 64, 65
Thus, the electrodes of the pair of batteries 32 and 33 are brought into pressure contact with each other.

That is, the magazine end plate 22 has a through hole 2 at a position corresponding to the contact portions Ca and Cb of the inter-battery connecting piece 61.
2a and 22b are provided (see FIG. 4). In addition, these through holes 22a, 22b
The pressure contact springs 64 and 65 made of a pair of coil springs are provided so that a pressing force is applied to the back surface of the inter-battery connecting piece 61 through the through holes. Each press contact spring 64,
The pressing force P2 of 65 is the biasing force P1 of the biasing spring 63.
It is set much larger.

Therefore, when the battery magazine 20 is stored in the battery storage chamber 10, the tips of the pressure contact springs 64, 65 formed of coil springs provided in the battery storage chamber 10 cause the magazine end plate 22 to move to the end plate 22. The back surface of the insulating member 61a of the inter-battery short-circuiting piece 61 is strongly pressed toward the battery through the opened through holes 22a and 22b. For this reason, the inter-cell short-circuiting piece 61 is pushed toward the electrode side by the pressing force P2 of the pressure contact springs 64 and 65 against the biasing force P1 of the biasing spring 63 as shown by a two-dot chain line in FIG.

At this time, the inter-battery short-circuiting piece 61 is slightly inclined with respect to the electrode tip, corresponding to the difference in the position of the electrode tip, as shown by the two-dot chain line in FIG. Contact. That is, the inter-cell short-circuit piece 61 is
It has a structure in which the central portion is supported by one end of the support shaft 62, and is formed of a flexible plate-shaped member having a high degree of freedom in changing the posture with respect to the inclination. For this reason, when there is a difference between the electrode tip positions of the batteries 32 and 33 as shown in the figure, the inter-cell short-circuiting piece 61 is deformed corresponding to the difference in the electrode tip positions, and comes into contact as shown by a two-dot chain line. Will be. As a result, the contact member 61b made of a good conductor of the inter-cell short-circuiting piece 61 comes into pressure contact with the electrode of each battery at a substantially uniform predetermined pressure. Therefore, the contact resistance is significantly reduced, and the occurrence of an instantaneous power failure phenomenon called chattering can be suppressed.

(Features of Embodiment) [1] The camera battery storage device shown in the embodiment includes a battery storage room (10) provided in the camera body (1) and a battery storage room (10). Battery magazine (20) provided so that it can be stored,
A plurality of battery loading sections (H1, H2) formed in parallel inside the battery magazine (20), and these battery loading sections (H1, H2)
Batteries (31,32,33,
34), an inter-cell short-circuit piece (61) for short-circuiting between a positive electrode and a negative electrode to be interconnected of a pair of adjacent batteries (32, 33), and A biasing spring (6) for biasing the piece (61) away from the positive electrode and the negative electrode of the pair of batteries (32, 33).
3) when the battery magazine (20) is stored in the battery storage chamber (10), the inter-cell short-circuit piece (61) is biased by a spring.
And a pressure spring (64, 65) for pressing against the positive electrode and the negative electrode of the pair of batteries (32, 33) against the biasing force (P1) of (63). Camera battery storage device.

[2] The camera battery accommodating device according to the embodiment is the battery accommodating device according to [1], wherein the press-contact operation by the press-contact springs (64, 65) is performed by the battery magazine ( The process is performed through through holes (22a, 22b) formed in the battery loading portions (H1, H2) of (20).

[3] The camera battery accommodating device shown in the embodiment is the battery accommodating device according to the above [2], wherein the pressure contact springs (64, 65) are coil springs. I have.

[4] The camera battery storage device according to the embodiment is the battery storage device according to the above [1], wherein the inter-battery shorting piece (61) is a contact member (61b) made of a good conductor.
It is characterized by having.

[5] The camera battery storage device according to the embodiment is the camera battery storage device according to the above [1] or [4], wherein the inter-battery shorting piece (61) is an insulating member. (6
It is characterized in that a conductive member (61b) is joined to 1a).

[0064]

According to the present invention, it is possible to provide a camera battery storage device provided with a contact mechanism having the following advantages.

(A) When the battery magazine is stored in the battery storage chamber, the inter-battery short-circuiting piece has a sufficiently large contact pressure with respect to the positive electrode and the negative electrode of the battery due to the pressure contact force of the pressure contact spring in the battery storage chamber. Contact. For this reason, since both the electric resistance and the contact resistance are small, the power loss is small and the life of the battery is prolonged.

(B) Since the stroke is long, a predetermined contact pressure can be secured with a sufficient margin even if there is considerable variation in battery lengths.

(C) Since a biasing force is applied by the biasing spring so that the inter-battery short-circuiting piece always comes into contact with the battery support surface, the battery can be loaded into or removed from the battery magazine. In addition, there is almost no possibility that the inter-battery short-circuiting piece hinders the operation of the battery. Therefore, the battery can be loaded / removed from the battery magazine very easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of an electronic camera provided with a camera battery storage device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a schematic configuration of a camera battery storage device according to an embodiment of the present invention, and is a perspective view illustrating a state in which a battery unit is removed from a battery storage chamber of a camera body as viewed from a camera bottom surface side.

FIG. 3 is a diagram showing a configuration of an engagement piece as a lid-side engagement portion that is a part of a lock mechanism in the camera battery storage device according to the embodiment of the present invention, in association with movement of an operation portion; FIG.
(A) is a figure showing an unlocked state, (b) is a figure showing a locked state.

FIG. 4 is a diagram showing the overall structure of a battery magazine in the camera battery storage device according to one embodiment of the present invention, and (a).
FIG. 3 is a perspective view of the battery magazine as viewed obliquely from above, and FIG. 4B is a perspective view of the battery magazine viewed from obliquely below with a part of the battery magazine being cut away.

5A and 5B are diagrams illustrating a configuration of a positive electrode and a reverse contact prevention mechanism in a negative contact of a battery magazine in a camera battery storage device according to an embodiment of the present invention. FIG. Side view, showing a partially cut-off state
(B) is a partially cutaway side view showing the state when the battery is inserted backward, (c) is a partially cutaway side view showing the configuration of the insulating spacer, and (d) is a view showing a modification. .

6A and 6B are diagrams illustrating a configuration of a relay contact mechanism of a battery magazine in the camera battery storage device according to the embodiment of the present invention, wherein FIG. 6A is a diagram schematically illustrating an overall configuration, and FIG.
3 is a partial cross-sectional view showing a main part in an enlarged manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Camera body 10 ... Battery storage room 20 ... Battery magazine 40 ... Lock mechanism 50 ... Positive side electrode / contact prevention mechanism 60 ... Relay contact mechanism BU ... Battery unit

Claims (5)

[Claims] 1. A battery storage chamber provided in a camera body, a battery magazine provided so as to be stored in the battery storage chamber, a plurality of battery loading sections formed in parallel in the battery magazine, Among the batteries that are alternately loaded with the polarity reversed in these battery loading sections, between the batteries for short-circuiting between the plus side electrode and the minus side electrode to be interconnected of a pair of adjacent batteries A shorting piece; a biasing spring for biasing the shorting piece between the batteries in a direction away from the plus side electrode and the minus side electrode of the set of batteries; and a gap between the batteries when the battery magazine is stored in the battery storage chamber. A press spring for pressing the short-circuit piece against the positive electrode and the negative electrode of the set of batteries against the biasing force of the bias spring. Pond storage devices. 2. The camera battery storage device according to claim 1, wherein the pressing operation by the pressing spring is performed through a through hole formed in a battery loading portion of the battery magazine. 3. The camera battery storage device according to claim 2, wherein the pressure spring comprises a coil spring. 4. The camera battery storage device according to claim 1, wherein the inter-battery short-circuiting piece has a contact member made of a good conductor. 5. The camera battery storage device according to claim 1, wherein the inter-battery short-circuit piece is formed by joining a conductive member to an insulating member.