JPH0997600A - Battery unit and electronic device including the same - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a battery unit that has good operability for battery replacement and that can obtain a reliable electrical connection state. A battery unit (2) is composed of a unit body (20) having a battery housing chamber (29) and a battery cover (3).
The unit body 20 is provided with a positive electrode piece 83 and a negative electrode piece 84 that should be in contact with both electrodes of the battery,
Positive terminal pin electrically connected to positive electrode piece 83
80 and the negative terminal pin 8 electrically connected to the negative electrode piece 84 are provided so as to project with a spring biasing force in the projecting direction. On the inner surface of the battery cover 3, both terminal pins 80,
8, a positive intermediate electrode portion 35 and a negative intermediate electrode portion 34 are formed. These electrode portions are formed on the outer surface of the battery cover 3 and are a positive electrode portion 27 and a negative electrode portion 26 for power supply. Is electrically connected to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery unit connected to a main body of an electronic device such as a telephone set or a video camera to supply electric power, and an electronic device including the battery unit.

[0002]

2. Description of the Related Art Generally, a primary battery such as an alkaline dry battery is widely used as a DC power source in various electronic devices such as a mobile phone and a video camera. For example, in a mobile phone, a 1.5V alkaline alkaline battery is used. A plurality of dry batteries are connected in series and loaded in the telephone. Also, secondary batteries such as Ni-Cd batteries having the same shape as the primary battery and compatible with the primary battery and which can be loaded into electronic devices have been put into practical use. By loading, it becomes possible to use repeatedly by charging.

Further, there is known a battery unit which has a built-in one of a primary battery and a secondary battery and is detachably attached to an apparatus main body, and there are two types, a primary battery only and a secondary battery only. For example, in a small video camera,
A battery unit having a built-in secondary battery is detachably attached to the camera body, and the unit can be charged by detaching the unit from the camera body and mounting the unit on a dedicated charger.

[0004]

However, in the conventional battery unit, a primary battery must be loaded with a primary battery and a secondary battery with a secondary battery. There was a problem that it was inconvenient because it was necessary to use different batteries.

By the way, as a secondary battery to be housed in a conventional battery unit, a positive electrode (91) and a negative electrode (92) for discharging are provided on both end surfaces as shown in FIG. Positive electrode (93) and negative electrode (9
A nickel-hydrogen battery has been developed in which 5) and the temperature detection electrode (94) are arranged. According to the secondary battery, electric power can be supplied from the positive electrode (91) and the negative electrode (92) for discharging. In addition, the positive electrode (93) and the negative electrode (95) for charging can be used for charging, and at the same time, the temperature detecting electrode (94) can be used to detect overheating during charging to ensure safety. I can.

The secondary battery (9) shown in FIG. 4 has substantially the same voltage and capacity as those of three conventional AAA type primary batteries (96) shown in FIG. 3 connected in series. Therefore, the inconvenience can be solved by constructing a battery unit capable of accommodating one secondary battery 9 and three primary batteries 96, 96, 96 in a compatible manner.

[0007] Therefore, the inventors of the present invention can detachably attach the mobile phone to the telephone body (10) as shown in FIG. 2 and select the primary battery and the secondary battery with compatibility. We tried to develop a battery unit (2) that can be loaded into the car.

However, in the structure for loading the battery into the battery unit and the structure for supplying the electric power from the battery in the battery unit to the main body of the electronic device, the operability of battery replacement and the electrical connection state are improved. However, these points have not been solved yet. In particular, in a configuration in which the battery unit is composed of the unit body and the battery cover and the contact type electrical connection portion is provided between the unit body and the battery cover, the connection state of the electrical connection portion tends to be unstable, and the contact state may be unstable. There is a risk of defects.

An object of the present invention is to provide a battery unit which has a good operability for battery replacement and which can obtain a reliable electrical connection state, and an electronic device equipped with the battery unit.

[0010]

The battery unit according to the present invention is a unit in which one surface is open to form a battery chamber (29) into which a primary battery (96) or a secondary battery (9) can be loaded. Body (20)
And the battery housing chamber (2
It is composed of a battery cover (3) that closes 9). In the unit main body (20), a positive electrode piece (83) and a negative electrode piece (84) to be in contact with both electrodes of the battery are arranged on both sides of the battery accommodating chamber (29), and A positive terminal pin (80) electrically connected to the positive electrode piece (83) and a negative terminal electrically connected to the negative electrode piece (84) are provided at the engaging portion with the battery cover (3). The terminal pins (8) and the battery cover, respectively
It is provided so as to have a spring biasing force in a direction projecting to the (3) side. Meanwhile, a positive intermediate electrode portion (35) and a negative intermediate electrode portion (34) are formed on the inner surface of the battery cover (3) at positions facing the positive terminal pin (80) and the negative terminal pin (8). The electrode parts (35) and (34) are electrically connected to the positive electrode part (27) and the negative electrode part (26) for supplying power, which are formed on the outer surface of the battery cover (3).

In the above battery unit of the present invention, when the primary battery (96) or the secondary battery (9) is loaded into the battery chamber (29), the battery cover (3) is removed from the unit body (20). . As a result, the battery chamber (29) is opened wide, and the battery can be easily loaded. As a result, the positive electrode of the battery comes into contact with the positive electrode piece (83), and at the same time, the negative electrode of the battery comes into contact with the negative electrode piece (84). Next, the battery cover (3) is put on the opening of the unit body (20). This allows the battery cover (3)
Positive intermediate electrode part (35) and negative intermediate electrode part (34)
Contact the positive terminal pin (80) and the negative terminal pin (8) of the unit body (20), respectively. Then, the battery cover (3) is pressed against the unit body (20) side against the spring biasing force of the positive terminal pin (80) and the negative terminal pin (8),
The battery cover (3) is engaged with the unit body (20).

As a result, the positive terminal pin (80) and the negative terminal pin (8) are pushed into the unit body (20), and the repulsive force of the positive terminal pin (80) and the negative terminal pin (8) cause the terminal pins (80) and (8) to both intermediate electrode parts (35 ) (34) is pressed. As a result, the unit body (2
The electric connection between the both terminal pins (80) (8) of (0) and both intermediate electrode parts (35) (34) of the battery cover (3) becomes reliable.
In this state, the output voltage of the battery can be taken out from the positive electrode part (27) and the negative electrode part (26) for power supply.

Then, in order to replace the battery in the battery chamber (29) with a new battery, the unit body (20) and the battery cover are replaced.
When the engagement of (3) is released, the battery cover (3) is pushed up by the spring biasing force of the positive terminal pin (80) and the negative terminal pin (8) pushed into the unit body (20), It can be lifted from the unit body (20). Therefore,
The battery cover (3) can be removed with one touch, and the battery can be easily replaced.

In the concrete structure, the battery cover (3) is slid in one direction along the joint surface between the unit body (20) and the battery cover (3) along the joint surface with the unit body (20). An engagement mechanism is provided in which the engagement is engaged and the engagement is released by sliding in the opposite direction.

In the above specific structure, every time the battery is replaced, the terminal pins (80) (8) of the unit body (20) and the intermediate electrode parts (35) (34) of the battery cover (3) are mutually replaced. Since it slides relatively, a self-cleaning effect at the contact point can be obtained.
Therefore, particularly in the engagement structure of the unit main body (20) and the battery cover (3) where the electrical contact state tends to be unstable, a reliable electrical connection state is guaranteed.

The electronic apparatus according to the present invention is such that the battery unit (2) according to the present invention is removably attached to the electronic apparatus main body that operates by receiving power supply. When attaching the battery unit (2) to the electronic device body, make sure that the outer surface of the battery cover (3) faces the electronic device body side.
Engage (2) with the body of the electronic device. As a result, the positive electrode portion (27) and the negative electrode portion (26) provided on the inner surface of the battery cover (3) come into contact with the power receiving terminals (19) and (19) of the electronic device body, and the battery unit (2) is removed. Electric power is supplied to the electronic device body.

[0017]

According to the battery unit of the present invention and the electronic apparatus equipped with the battery unit, the operability of battery replacement is good, and a reliable electrical connection state can be obtained.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention applied to a mobile phone will be described in detail below with reference to the drawings. As shown in FIG. 1, a mobile phone (1) according to the present invention is constructed by detachably attaching a battery unit (2) to a phone body (10).
The phone body (10) has a push button (13), a display (14) and a speaker (15) on the surface of the body case (11), and by opening the lid (12), the push button (13) Operation becomes possible. In the following description, the mobile phone
When the positions of the respective parts of (1) are shown, the direction in which the speaker (15) is provided is defined as the upper side, and the direction in which the pivotally supporting part of the lid (12) is provided is defined as the lower side.

In the battery unit (2), three AAA alkaline batteries as a primary battery or the secondary battery (9) shown in FIG. 4 is selectively accommodated. The secondary battery (9) is a nickel metal hydride battery having a slightly larger outer shape than the state in which three AAA alkaline batteries are arranged together.
In addition to having a capacity of V-370 mAh, a thermistor (not shown) for temperature detection is built-in, and the temperature rise during charging can be detected based on the resistance change of the thermistor.

As shown in FIG. 2, a pair of power receiving terminals (19) and (19) are provided on the battery unit mounting portion (16) of the telephone body (10) so as to project in the projecting direction by spring bias. In addition, the battery unit (2), at a position corresponding to the power receiving terminal (19) (19),
A positive electrode part (27) and a negative electrode part (26) for power supply are formed. Then, the two protruding pieces (24) (24) protruding from the lower end of the battery unit (2) are fitted into the holes of the locking pieces (17) (17) formed in the telephone body (10), and the battery is The tongue piece (25) projecting from the upper end of the unit (2) is softly locked to the recess (18) formed in the telephone body (10), so that the battery unit (2) is the battery of the telephone body (10). It is detachably attached to the unit mounting part (16), and at the same time, the electrode parts (27) (26) for power supply and the power receiving terminals (19) (19) are pressure-contacted with each other, and the battery unit (2) is connected to the telephone. Electric power is supplied to the main body (10). Further, at the lower end of the battery unit (2), a negative charging terminal (21), a temperature detecting terminal (22) and a positive charging terminal (23)
By installing the battery unit (2) in a charger (not shown), these terminals are connected to the charger and the secondary battery in the battery unit (2) is charged. .

As shown in FIG. 3, the battery unit (2) includes a unit body (20) having a battery housing chamber (29) and a battery cover.
The battery cover (3) is configured by detachably attaching (3).
A pair of left and right protruding pieces (37) (37) protruding from the lower end of the battery was inserted into the back side of the holding plate (40) installed on the unit body (20) and formed on the upper end of the battery cover (3). By engaging the pair of left and right hook pieces (32) (32) with the pair of left and right hook pieces (43) (43) provided on the unit body (20), the battery cover (3) is Fixed at 20).

A battery accommodating chamber (29) is formed in the unit body (20), and the battery accommodating chamber (29) has a positive main electrode piece (83) and a first plus relay electrode at its lower end. The piece (82) and the second plus relay electrode piece (81) are fixed. In addition, at the upper end of the battery chamber (29), a minus main electrode piece (84) having a coil shape and elasticity and a first minus relay electrode piece (8
5) and the second minus relay electrode piece (86) are attached. As will be described later, the first plus relay electrode piece (82) and the second minus relay electrode piece (86) are electrically connected, and the second plus relay electrode piece (81) and the first minus relay electrode piece (85). Are electrically connected to each other, and these electrode pieces allow the battery chamber (29) to be connected.
Thus, the three primary batteries housed in are connected to each other in series.

Also, at the left and right ends of the unit body (20),
Steps (47) (47) are recessed, the bottom of the steps (47) (47),
A positive terminal pin (80) and a negative terminal pin (8), which exert a spring biasing force, are provided in a protruding manner in a direction projecting to the battery cover (3) side. As described below, the positive terminal pin (80) is electrically connected to the positive main electrode piece (83), and the negative terminal pin (8) is electrically connected to the negative main electrode piece (84). The output voltage of the secondary battery housed in the battery housing chamber 29 or the three primary batteries connected in series with each other is taken out from the pin 80 and the negative terminal pin 8.

On the other hand, the battery cover (3) has a pair of left and right convex portions (3) corresponding to the stepped portions (47) (47) of the unit body (20).
8) (38) are provided in a protruding manner, and the convex portions (38) (38) are provided with a plus intermediate electrode portion (35) and a minus intermediate electrode portion (34). By attaching the battery cover (3) to the unit body (20), the intermediate electrode parts (35) (34) are pressed into contact with the positive and negative terminal pins (80) (8) of the unit body (20). Become. Also, the battery cover (3) has two viewing windows.
(31) (31) has been opened so that it can be confirmed whether the battery housed in the battery housing chamber (29) is the secondary battery (9) or the primary battery (96). .

As shown in FIG. 4, the unit main body (20) is equipped with the above-mentioned electrode pieces (81) to (86) and terminal pins (8) and (80) so that the secondary battery (9) can be loaded. The internal unit case (4), a flexible printed board (6) attached to the back surface of the internal unit case (4) to electrically connect the electrode pieces to each other, the internal unit case (4) and the flexible printed board ( External unit case that accommodates 6)
(5). By loading the secondary battery (9) in the internal unit case (4), the positive electrode (91) of the secondary battery (9) contacts the positive main electrode piece (83) and at the same time,
The negative electrode (92) of the secondary battery (9) is the negative main electrode piece (8
You will come into contact with 4). The positive and negative charging terminals (23) and (21) and the temperature detecting terminal (22) are attached to a terminal plate (42) forming a part of the internal unit case (4).

In the inner unit case (4), the temperature detecting electrode (94) of the secondary battery (9) is further provided on the bottom surface of the battery accommodating chamber (29).
Auxiliary electrode part (87) for temperature detection that should come into contact with the secondary battery
The charging plus electrode (93) of (9) and the charging plus auxiliary electrode portion (88) to be contacted are provided in a protruding manner, and as described later, the temperature detection auxiliary electrode portion (87) has a temperature detection terminal ( 22) and the positive charging auxiliary electrode portion (88) are electrically connected to the positive charging terminal (23). The minus main electrode piece (84) is electrically connected to the minus charging terminal (21). Therefore, by applying the charging voltage to the positive charging terminal (23) and the negative charging terminal (21), the internal unit case (4)
It is possible to charge the secondary battery (9) loaded inside.

When the inner unit case (4) is fitted into the outer unit case (5), first, the inner unit case is inserted.
A slide piece (41) for locking the battery cover (3) is engaged with the rail portion (46) recessed at the upper end of (4) as described later. After that, the charging terminal of the internal unit case (4)
Connect (21), (23) and temperature detection terminal (22) to the external unit case.
It is projected on the inner surface of the external unit case (5) while being fitted into the round holes (53), (53) and (53) opened at the lower end of (5).
Insert the four protrusions (51) (51) (51) (51) into the inner unit case (4).
The four engaged parts (44) (44) (44) (44) (44) recessed on both sides of the internal unit case (4) are formed at the same time, and the projections (45) are formed on the upper end of the internal unit case (4). Recess of external unit case (5)
Engage with (52).

Then, with the holding plate (40) placed on the terminal plate (42), two screws are penetrated from the holding plate (40) to the terminal plate (42), and the tip portion thereof is connected to the external unit. Screw it onto the case (5). As a result, the holding plate (40), the terminal plate (42), the internal unit case (4) and the external unit case (5) are integrated to complete the unit body (20) shown in FIG. The battery cover (3) has two lead plates (3
3) (33) is embedded, and the above-mentioned power supply electrode parts (27) (26) and intermediate electrode parts (35) (34) are formed by the ends of these lead plates (33) (33). Has been formed.

On the back surface of the internal unit case (4), as shown in FIG.
As shown in FIG. 2, two lead plates (89a) and (89b) are fixed, and the tip portions of these lead plates (89a) and (89b) are bent to project to the inside of the internal unit case (4). As a result, the above-mentioned temperature detecting auxiliary electrode portion (87) and charging plus auxiliary electrode portion (88) are formed. The internal unit case
On the back surface of (4), as shown in FIG. 8, seven conductor strips (63) to (6
A flexible printed circuit board (6) having a predetermined pattern 9) is attached, and necessary electrical connections are made as described later.

That is, the first conductor strip (63) electrically connects the minus main electrode piece (84), the minus terminal pin (8) and the minus charging terminal (21) to each other. Second conductor article (6
By 4), the first minus relay electrode piece (85) and the second plus relay electrode piece (81) are electrically connected to each other. The third conductor strip (65) electrically connects the temperature detecting auxiliary electrode portion (87) and the temperature detecting terminal (22) to each other. 4th conductor strip
By (66), the second minus relay electrode piece (86) and the first plus relay electrode piece (82) are electrically connected to each other. or,
The fifth conductor strip (67) and the seventh conductor strip (69) electrically connect the positive charging auxiliary electrode portion (88) and the positive charging terminal (23) to each other. Further, the sixth conductor strip (68) electrically connects the positive terminal pin (80) and the positive main electrode piece (83) to each other. Where 6th conductor strip (68) and 7th conductor strip
A diode (61) for preventing backflow during charging is interposed between (69), and a first conductor strip (63) and a sixth conductor strip are provided.
Between (68), a capacitor as a backup power supply that should be discharged when the power supply from the battery is momentarily interrupted.
(62) is intervening. Flexible printed circuit board
Two elongated holes (60) and (60) are opened in (6) as shown in FIG. As a result, as shown in FIG. 4, the two protrusions (54) (54) projectingly provided on the bottom surface of the external unit case (5) pass through these elongated holes (60) (60) and are shown in FIG. It is possible to support the two lead plates (89a) and (89b) from the back surface.

Install the battery cover (3) in the inner unit case (4)
When fixing the battery cover (3) on the unit main body (20) with the slide piece (41) slid to the left end of the figure as shown in FIG. By sliding 3) downward, the protrusion (3) of the battery cover (3)
At the same time as inserting 7) (37) into the back of the holding plate (40), attach the hook pieces (32) (32) of the battery cover (3) to the internal unit case (4).
Engage with the hook pieces (43) (43). After that, slide pieces (41)
Slide to the right end of the figure, and slide the slide piece (4
The battery cover (3) is constrained to the downward moving end by 1). As a result, the battery cover (3) is attached to the unit body (2
It will be locked at 0).

When the battery cover (3) is locked to the unit body (20), the intermediate electrode portions (34) and (35) of the battery cover (3) are connected to the terminal pins () of the unit body (20) as shown in FIG. 8) Press down (80) and push down these pins against the spring bias. As a result, the terminal pins (8) (80) are surely brought into contact with the intermediate electrode portions (34) (35) by the elastic restoring force.
When removing the battery cover (3) from the unit body (20), as shown by the arrows in FIGS. 6 and 7, the battery cover (3)
Slide upward to disengage the protrusions (37) (37) from the holding plate (40) and disengage the hooks (32) (32) from the hooks (43) (43). As a result, the battery cover (3) is released from the restraint from the unit body (20). At this point, the battery cover (3) is pushed up from the unit body (20) by the elastic repulsive force of the terminal pins (8) and (80). Therefore, the battery cover (3) can be easily removed. In addition, as described above, the terminal pin (80) is attached with the attachment / detachment of the battery cover (3).
Since (8) and the intermediate electrode parts (35) and (34) slide relative to each other, a self-cleaning effect at the contact point is obtained, and a good electrical connection state is always guaranteed.

The unit body (20) has three primary batteries (96) (9
6) When loading (96), the battery storage adapter (7) shown in FIG. 5 is mounted in the battery storage chamber (29) of the internal unit case (4). Battery storage adapter (7) has 3 primary batteries
(96) (96) (96) can be stored in contact with each other, the positive electrode (97) of these primary batteries (96)
Three electrode plates (74), (74), (74) to be contacted with are attached with play in the battery longitudinal direction as described later. These electrode plates (74) (74) (74) can also contact the three electrode pieces (83) (82) (81) on the internal unit case (4). On the bottom of the battery storage adapter (7), these three primary batteries
(96) (96) (96) It appears in the wedge-shaped space formed between (2), 2
Wedge-shaped protrusions (71) (71) are formed. or,
The portion where the negative side end of each primary battery (96) should be accommodated is largely cut off, and the negative electrode of each primary battery (96) is cut.
(98) is the negative electrode piece (8
It is possible to directly contact 4) (85) (86).

As shown in FIGS. 10 and 11, the battery accommodation adapter (7) has a battery receiving plate having a notch at the lower end thereof for exposing the positive electrode of each primary battery.
Forming (76). The battery receiving plate (76) has four electrode plate holding ribs (72) for holding both sides of each electrode plate (74).
a) (72a) (72b) (72b) is projected, and the battery receiving plate (76)
An electrode plate accommodating groove (77) into which the electrode plate (74) fits with a margin in the battery longitudinal direction is formed between these electrode plate holding ribs. Further, as shown in FIGS. 12 and 13, the battery receiving plate (76) is provided with a pair of retaining pieces (75) (75) protruding from each electrode plate (74) for retaining the retaining structure. There is. The retaining piece (75)
Is formed in a wedge shape as shown, and when the electrode plate (74) is fitted into the electrode plate storage groove (77), elastic deformation of the battery receiving plate (76) allows passage of the electrode plate (74). It As described above, since each electrode plate (74) is fitted in the electrode plate storage groove (77) with play, it is possible to move within the play range as shown by the arrow in FIG.

Further, the battery receiving plate (76) has two inner electrode plate holding ribs (72a) (72) as shown in FIGS.
Triangular prism-shaped projections (73) (73) projecting toward the battery chamber are formed at positions back to back with a).

As shown in FIG. 14, a battery storage adapter
(3) When the three primary batteries (96), (96), (96) are loaded in the correct direction, the positive end of each primary battery (96) is the protrusion of the battery storage adapter (7). Abutting against (73), the primary battery (9
6) is positioned, but at this position, the primary battery (96)
The positive electrode (97) can contact with the electrode plate (74). On the other hand, as shown in FIG. 15, when the primary battery (96) is loaded in the reverse direction, the negative side end of the primary battery (96) contacts the protruding piece (73) of the battery storage adapter (7). In contact with each other, the minus electrode (98) and the electrode plate (74) are maintained in a non-contact state. Therefore, no reverse voltage is applied to the circuit of the telephone body, which prevents damage to the circuit.

Further, as shown in FIG. 16, when the primary battery (96) is not loaded in an oblique posture, the primary battery (96) is placed on the ridge (71) of the battery storage adapter (7). It prevents the wrong insertion of the primary battery (96).

As shown in FIG. 14, when the three primary batteries (96), (96), (96) are loaded in the correct direction on the battery accommodation adapter (7), each primary battery (96) is minus. Electrode piece (8
4) (85) (86) has elastic repulsive force,
Individually pressed to the (74) side, the positive electrode (97) of each primary battery (96) is pressed against each electrode plate (74) by the pressing force, and each electrode plate (74) is a positive electrode. It is pressed toward the pieces (81) (82) (83). As a result, the positive electrode (9) of each primary battery (96)
7), via the electrode plate (74) of the battery storage adapter (7),
It is electrically connected to the corresponding electrode pieces (81) (82) (83) of the unit body (20) and also the negative electrode of each primary battery (96).
(98) directly contacts the corresponding negative electrode pieces (84) (85) (86), and the positive main electrode piece (83) and the negative main electrode piece
The output voltage can be taken out from (84).

If it is assumed that an integral molding structure is used in which the three electrode plates (74) are fixed to the battery storage adapter (7) at fixed positions, the relative positioning of these electrode plates (74) during molding. It is inevitable that a slight error will occur in the physical relationship, and the battery storage adapter (7) will still fit inside the internal unit case (4).
With the battery attached, the battery storage adapter (7) may tilt slightly due to molding errors, etc.
In such a case, all electrode plates (74) are positive electrode pieces (81)
(82) (83) may not be contacted, and a part of the electrode plate (74) may have a poor contact so that a complete electrical connection may not be obtained.
On the other hand, in the present invention, since the electrode plate (74) is held with play, the spring biasing force by the negative electrode pieces (84) (85) (86) is applied to each electrode plate via the primary battery (96). By being individually transmitted to (74), each electrode plate (74) independently moves within the play range as described above, and each of them surely contacts the positive electrode piece. Therefore, a reliable electrical connection state can always be obtained.

The description of the above embodiment is for the purpose of explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof.
Further, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims. For example, it goes without saying that the present invention can be applied not only to mobile phones but also to various electronic devices such as video cameras and mobile television receivers.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a mobile phone according to the present invention.

FIG. 2 is a perspective view showing a state in which a battery unit is removed from the telephone body.

FIG. 3 is a perspective view showing a state in which a battery cover is removed from the unit main body.

FIG. 4 is an exploded perspective view of a unit main body in a configuration for loading a secondary battery.

FIG. 5 is an exploded perspective view of a main part of a unit main body in a configuration for loading a primary battery.

FIG. 6 is a view showing a joint surface of a battery unit with a telephone body.

FIG. 7 is a sectional view taken along the line AA of FIG. 6;

FIG. 8 is a rear view of the flexible printed board.

FIG. 9 is a rear view of the internal unit case.

FIG. 10 is an exploded perspective view of a battery storage adapter.

FIG. 11 is an enlarged perspective view of the main part of the battery storage adapter as viewed from the battery storage chamber side.

FIG. 12 is an enlarged perspective view of the main part of the battery storage adapter as viewed from the side opposite to FIG. 11.

FIG. 13 is a cross-sectional view taken along the line BB of FIG.

FIG. 14 is a plan view showing a state in which three primary batteries are loaded in the battery storage adapter.

FIG. 15 is a plan view showing the relationship between the negative electrode and the electrode plate when the primary battery is loaded in the reverse direction.

FIG. 16 is a plan view of the above when a primary battery is not diagonally loaded.

[Explanation of symbols]

 (1) Mobile phone (10) Phone body (11) Body case (2) Battery unit (20) Unit body (27) Positive electrode part for power supply (26) Negative electrode part for power supply (3) Battery cover (35 ) Positive intermediate electrode section (34) Negative intermediate electrode section (4) Internal unit case (5) External unit case (6) Flexible printed circuit board (7) Battery storage adapter (71) Ridge (73) Projection (74) Electrode Plate (77) Electrode plate groove (8) Negative terminal pin (80) Positive terminal pin (83) Positive main electrode piece (82) 1st plus relay electrode piece (81) 2nd plus relay electrode piece (84) Negative main Electrode piece (85) 1st minus relay electrode piece (86) 2nd minus relay electrode piece

Claims (3)

[Claims] 1. A battery unit that is connected to an electronic device body and supplies electric power to the electronic device body, and one surface is open so that a primary battery (96) or a secondary battery (9) can be loaded. The unit main body (20) having the battery housing chamber (29) formed therein and the battery cover (3) that engages with the opening of the unit main body (20) and closes the battery housing chamber (29) are formed. In (20), a positive electrode piece (83) and a negative electrode piece (84) to be in contact with both electrodes of the battery are arranged on both sides of the battery housing chamber (29), and a battery cover ( The positive terminal pin (80) electrically connected to the positive electrode piece (83) at the engaging portion with 3).
And a negative terminal pin (8) electrically connected to the negative electrode piece (84) are provided so as to project with a spring biasing force in the direction of projecting to the battery cover (3) side. On the inner surface of (3), positive terminal pin (80) and negative terminal pin
A positive intermediate electrode portion (35) and a negative intermediate electrode portion (34) are formed at positions facing (8), and these electrode portions (35) (34)
Is a battery unit characterized in that it is electrically connected to a positive electrode portion (27) and a negative electrode portion (26) for power supply formed on the outer surface of the battery cover (3). 2. The engaging portion between the unit body (20) and the battery cover (3) is engaged by sliding the battery cover (3) in one direction along a joint surface with the unit body (20). The battery unit according to claim 1, further comprising: an engagement mechanism that is disengaged by being engaged and slid in the opposite direction. 3. An electronic equipment main body that operates by receiving supply of electric power, and a battery unit (2) detachably attached to the electronic equipment main body to supply electric power. The battery unit (2) comprises: Primary battery (96) or secondary battery with one side open
A unit main body (20) having a battery accommodating chamber (29) into which the battery (9) can be loaded, and a battery cover (3) that engages with an opening of the unit main body (20) to close the battery accommodating chamber (29). The unit body (20) has a positive electrode piece (83) and a negative electrode piece (84) to contact both electrodes of the battery on both sides of the battery housing chamber (29). The positive terminal pin (80) electrically connected to the positive electrode piece (83) and the negative electrode piece (84) are electrically connected to the engaging portion of the battery cover (3). And a negative terminal pin (8) connected to each of the battery cover (3) and a positive terminal pin (8) are provided so as to project toward the battery cover (3) with a spring biasing force. 80) and the minus terminal pin (8), the plus intermediate electrode part (35) and the minus intermediate electrode part (34) are formed, and these electrode parts (35) and (34) are the battery cover (3 ) Outer surface Plus electrode portion for formed power supply (27) and the negative electrode portion
(26) is electrically connected and the battery unit (2) is engaged with the electronic device body, the positive electrode portion (27) and the negative electrode portion (26) are connected to the power receiving terminal (19) of the electronic device body. ) (19) An electronic device, which is brought into contact with and supplied with electric power.