WO2017208473A1

WO2017208473A1 - Charging device

Info

Publication number: WO2017208473A1
Application number: PCT/JP2016/079521
Authority: WO
Inventors: 喜多　信仁; 平秋山; 大悟永田; 英治坂井
Original assignee: ソフトバンクコマース＆サービス株式会社
Priority date: 2016-06-03
Filing date: 2016-10-04
Publication date: 2017-12-07
Also published as: WO2017208441A1; TW201810793A

Abstract

[Problem] To provide a charging device in which a plurality of battery units each having a different full charge capacity can be used selectively. [Solution] A charging device (1) for charging an electronic device has a battery unit (2) and a cable unit (3). The battery unit (2) is provided with an all-solid battery (21) and a battery case (23) for storing the all-solid battery. The cable unit (3) is provided with: a first connector portion (31) detachably connected to the electronic device; a second connector portion (32) detachably connected to the battery unit (2); and a discharge circuit (321) for controlling the discharging of the battery unit.

Description

Charger

The present invention relates to a charging device for charging an electronic device.

An electronic device such as a smartphone can be charged using a charging device. As this charging device, there is one in which a battery, a discharge circuit that controls discharging of the battery, and a cable for connecting the charging device to an electronic device are integrally configured.

In a charging device in which a battery, a discharge circuit, and a cable are integrally configured, only the same type of battery can be used, and the full charge capacity of the battery cannot be changed. For this reason, in order to use a plurality of batteries having different full charge capacities, it is necessary to prepare a plurality of types of charging devices having different full charge capacities.

Here, it is also possible to prepare only a charging device having the largest full charge capacity of the battery. However, the larger the full charge capacity of the battery, the larger the battery and the larger the charging device. For this reason, it is inconvenient for the user to prepare only a large charging device and carry this charging device. Further, depending on the use state of the electronic device, the electronic device can be sufficiently charged even if the full charge capacity of the battery is not so large. For this reason, it is more convenient for the user to carry around a charging device including a battery with a full charge capacity suitable for the usage state of the electronic device.

On the other hand, when the battery and the discharge circuit are arranged in the charging device, the size of the charging device may have to be determined in consideration of the size of the discharging circuit. In this case, downsizing of the charging device may be hindered by the discharge circuit.

The first invention of the present application is a charging device for charging an electronic device, and includes a battery unit and a cable unit. The battery unit includes an all-solid battery and a battery case that houses the all-solid battery. The cable unit includes a first connector portion that is detachably connected to the electronic device, a second connector portion that is detachably connected to the battery unit, and a discharge circuit that controls discharge of the battery unit.

According to the present invention, since the battery unit and the cable unit are configured separately, a plurality of types of battery units having different full charge capacities can be prepared. Further, since the discharge circuit is provided in the cable unit, it is not necessary to provide a discharge circuit in the battery unit, and the size of the battery unit can be determined without considering the size of the discharge circuit.

The charging device may have a connecting member that connects the second connector portion to the battery unit. The connecting member can connect the second connector portion to the battery unit by penetrating the battery case and engaging with the second connector portion. By using the connecting member, the second connector portion of the cable unit can be connected to the battery unit to be used.

The battery unit may be provided with a first contact member exposed on the first surface of the battery case and a second contact member exposed on the second surface opposite to the first surface. The connecting member can be provided with a flange portion that comes into contact with the first contact member, a column portion that protrudes from the flange portion, and a pin that is provided on the tip surface of the column portion and protrudes from the second surface. The second connector portion is disposed on the second surface of the battery case. The second connector portion can be provided with a third contact member that comes into contact with the second contact member, a fourth contact member that comes into contact with the tip end surface of the column portion, and an engaging portion that engages with the pin. .

The outer shape of the flange portion and the column portion can be formed in a circular shape. The connecting member can be provided with a knob that is held by the user. The cable unit can be provided with an opening into which the knob is inserted at a position adjacent to the first connector portion.

The charging device may have a connecting member that connects the first connector part and the second connector part to the battery unit. The connecting member penetrates the first connector portion and the battery case, and engages with the first connector portion and the second connector portion.

The battery unit may be provided with a first contact member exposed on the first surface of the battery case and a second contact member exposed on the second surface opposite to the first surface. The coupling member can be brought into contact with the first contact member when engaged with the second connector portion. The second connector portion is disposed on the second surface of the battery case. The second connector portion can be provided with a contact pin that contacts the second contact member.

The second invention of the present application is a battery unit that is connected to an electronic device via a cable unit including a discharge circuit and supplies electric power to the electronic device. The battery unit includes an all solid state battery, a battery case, a first contact member, and a second contact member. The battery case includes an all-solid battery and a through hole through which a connecting member for connecting the cable unit to the battery unit passes. The first contact member is exposed on the first surface of the battery case. The second contact member is exposed on the second surface opposite to the first surface, and is electrically connected to the cable unit disposed on the second surface. The first contact member is electrically connected to the cable unit via the connecting member.

The third invention of the present application is a cable unit for supplying electric power from a battery unit including an all solid state battery to an electronic device. The cable unit includes a cable body, a first connector portion, and a second connector portion. The first connector portion is provided at one end of the cable body and is detachably connected to the electronic device. The second connector portion is provided at the other end of the cable body and is detachably connected to the battery unit. The second connector portion includes a discharge circuit that controls discharge of the battery unit and an engagement portion that engages with a connecting member that penetrates the battery unit.

It is an external view of the charging device which is 1st Embodiment. It is an exploded view of the battery unit which is 1st Embodiment. It is a front view of the battery unit which is 1st Embodiment. It is a rear view of the battery unit which is 1st Embodiment. It is an exploded view of the cable unit which is 1st Embodiment. It is an external view of the 2nd connector part of the cable unit which is 1st Embodiment. It is a figure which shows the internal structure of the 2nd connector part which is 1st Embodiment. It is an external view of the connection member which is 1st Embodiment. In 1st Embodiment, it is a figure which shows the state which fixed the 2nd connector part to the battery unit. In 1st Embodiment, it is a figure which shows the state which fixed the 1st connector part of the cable unit to the battery unit. In a modification, it is a figure which shows the structure of a battery unit and a connector part. It is an exploded view of the battery unit which is 2nd Embodiment. It is a front view of the battery unit which is 2nd Embodiment. It is a rear view of the battery unit which is 2nd Embodiment. It is an exploded view of the cable unit which is 2nd Embodiment. In 2nd Embodiment, it is a figure which shows the state which fixed the 1st connector part and the 2nd connector part to the battery unit. In 2nd Embodiment, it is a figure which shows the state which fixed the 1st connector part and the 2nd connector part to the battery unit. In 2nd Embodiment, it is sectional drawing of a connection member, a 1st connector part, a 2nd connector part, and a battery unit. In 2nd Embodiment, it is a figure which shows the state which removed the 1st connector part from the battery unit. In 2nd Embodiment, it is sectional drawing of a connection member, a 2nd connector part, and a battery unit.

(First embodiment)
The charging device which is 1st Embodiment of this invention is demonstrated. A charging device 1 shown in FIG. 1 is used to charge a battery built in an electronic device (not shown) such as a smartphone. The charging device 1 includes a battery unit 2, a cable unit 3, and a connecting member 4.

The battery unit 2 and the cable unit 3 are separable, and the cable unit 3 can be connected to the battery unit 2 by using the connecting member 4. The cable unit 3 can be connected to an electronic device (not shown). By connecting the cable unit 3 to the battery unit 2 and the electronic device, power can be supplied from the battery unit 2 to the electronic device to charge the battery in the electronic device.

First, the structure of the battery unit 2 will be described with reference to FIGS.

The battery unit 2 includes a battery module 21 and a battery case 23 that houses the battery module 21. The battery module 21 is composed of at least one all solid state battery formed in a plate shape. When using a plurality of all solid state batteries, the battery module 21 can be configured by stacking these all solid state batteries and electrically connecting them in parallel or in series.

The full charge capacity of the battery module 21 can be increased by electrically connecting a plurality of all solid state batteries in parallel. Moreover, the full charge capacity of the battery module 21 can be increased by changing the size of the all solid state battery. A plurality of types of battery units 2 having different full charge capacities of the battery module 21 can be manufactured. On the other hand, the output of the battery module 21 can be increased by electrically connecting a plurality of all solid state batteries in series.

An all-solid battery is a secondary battery having a solid electrolyte. Examples of the all solid state battery include a thin film type all solid state battery and a bulk type all solid state battery. In a thin film type all solid state battery, thin films constituting each of a positive electrode, a negative electrode, and a solid electrolyte are formed by a vapor phase method or the like, and these thin films are laminated. In a bulk-type all-solid battery, each of a positive electrode, a negative electrode, and a solid electrolyte is composed of fine particle layers, and these layers are laminated. In the present embodiment, the battery module 21 can be configured using a fully fixed battery having a known structure or a known material.

The battery module 21 has a negative electrode terminal 21a and a positive electrode terminal 21b, and the outer surface of the battery module 21 excluding the negative electrode terminal 21a and the positive electrode terminal 21b is covered with an insulating layer.

The battery case 23 is formed along the outer surface of the battery module 21, and as the material of the battery case 23, for example, a skin or resin can be used. The battery case 23 includes a case main body 231 and a lid 232. The lid 232 closes an opening 231 a formed on the upper surface of the case main body 231 and is fixed to the case main body 231. By fixing the lid 232 to the case body 231, the inside of the battery case 23 is hermetically sealed.

The first contact member 24 is formed in a ring shape. The outer peripheral surface of the first contact member 24 is fixed to a circular opening 25 a formed in the first contact casing 25. The first contact member 24 is electrically connected to the negative terminal 21a of the battery module 21 through wiring (not shown). The first contact casing 25 is made of an insulating material such as resin.

The first contact member 24 and the first contact casing 25 are accommodated in the battery case 23. The first contact casing 25 is used for positioning the first contact member 24 inside the battery case 23. The opening 25 a of the first contact casing 25 is located at a position overlapping the circular opening 231 b formed in the case body 231. The diameter of the opening 231b is equal to or greater than the outer diameter of the first contact member 24. When the opening 231b is viewed from the outside of the battery case 23 (that is, in the direction of arrow D1 in FIG. 2), as shown in FIG. The first contact member 24 is located inside the opening 231b. That is, the first contact member 24 is exposed to the outer surface of the battery case 23 through the opening 231b.

The second contact member 26 is fixed to the second contact casing 27 and is electrically connected to the positive electrode terminal 21b of the battery module 21 through wiring (not shown). The second contact casing 27 is made of an insulating material such as resin and is stacked on the first contact casing 25. The second contact member 26 and the second contact casing 27 are accommodated in the battery case 23. The second contact casing 27 is used for positioning the second contact member 26 inside the battery case 23. The second contact casing 27 has a circular opening 27a. The diameter of the opening 27 a is equal to or smaller than the inner diameter of the first contact member 24.

The lid 232 has a rectangular first opening 232a and a circular second opening 232b. The second contact member 26 passes through the first opening 232a and is exposed on the outer surface of the lid 232 as shown in FIG. FIG. 4 is a diagram when the battery unit 2 is viewed from the direction of the arrow D2 illustrated in FIG.

The second opening 232b overlaps the opening 27a of the second contact casing 27, and the diameter of the second opening 232b is substantially equal to the diameter of the opening 27a. When the lid 232 is viewed from the outside of the battery case 23, the first contact member 24 is covered with the second contact casing 27 and the lid 232, and does not protrude inside the second opening 232b (see FIG. 4). .

According to this embodiment, the first contact member 24 is only exposed at the first surface of the battery unit 2, and the second contact member 26 is only exposed at the second surface of the battery unit 2. (See FIGS. 3 and 4). Here, the first surface and the second surface are both end surfaces of the battery unit 2 in the thickness direction of the battery module 21 (vertical direction in FIG. 2).

The short circuit of the battery module 21 can be suppressed by exposing the first contact member 24 and the second contact member 26 on the two surfaces of the battery unit 2. If the first contact member 24 and the second contact member 26 are exposed on the same surface of the battery unit 2, when the conductive member is disposed outside the battery unit 2, the conductive member becomes the first contact member 24. In addition, the battery module 21 may be short-circuited due to contact with the second contact member 26. According to this embodiment, such a short circuit of the battery module 21 can be suppressed.

Next, the structure of the cable unit 3 will be described with reference to FIG.

The cable unit 3 includes a first connector part 31, a second connector part 32, and a cable body 33. The 1st connector part 31 is provided in the end of the cable main body 33, and is connected to an electronic device (not shown). The second connector portion 32 is provided at the other end of the cable body 33 and is connected to the battery unit 2. In FIG. 5, a part of the cable body 33 is cut away.

The first connector portion 31 includes a connector 311, a first connector casing 312, a second connector casing 313, and a connector cover 314. The distal end portion of the connector 311 protrudes from the first connector casing 312. A proximal end portion of the connector 311 is accommodated in the first connector casing 312 and the second connector casing 313.

The first connector casing 312 is fixed to the second connector casing 313, and the second connector casing 313 is fixed to one end of the cable body 33. The connector cover 314 is detachably attached to the distal end portion of the connector 311. When the connector cover 314 is attached to the distal end portion of the connector 311, the connector cover 314 protects the connector 311 by covering the distal end portion of the connector 311.

A negative cable 331 and a positive cable 332 are connected to the base end of the connector 311. The negative cable 331 and the positive cable 332 pass through the second connector casing 313 and extend into the cable body 33. The negative cable 331 and the positive cable 332 extend from one end of the cable main body 33 to the other end, and protrude from both ends of the cable main body 33.

The cable body 33 is formed of a material that can be bent, and the negative cable 331 and the positive cable 332 are deformed in accordance with the deformation of the cable body 33. A negative cable 331 and a positive cable 332 protruding from the other end of the cable body 33 are connected to the second connector portion 32. An opening 333 is formed on one end side of the cable body 33. The opening 333 is formed between the negative cable 331 and the positive cable 332.

The second connector section 32 includes a circuit board 321, a fixed board 322, a connector casing 323, and a decorative cover 324. The circuit board 321 is connected to the negative cable 331 and the positive cable 332. A discharge circuit for controlling the discharge of the battery module 21 is mounted on the circuit board 321. This discharge circuit is electrically connected to the negative cable 331 and the positive cable 332. The discharge circuit includes, for example, a booster circuit for boosting the voltage of the battery module 21 and a cutoff circuit for blocking the discharge of the battery module 21.

The discharge circuit mounted on the circuit board 321 is electrically connected to the fixed board 322 through wiring. The circuit board 321 and the fixed board 322 can also be formed integrally. The fixed substrate 322 has an opening 322a. A third contact sleeve 327a and a fourth contact sleeve 328a are fixed to the fixed substrate 322, and the third contact sleeve 327a and the fourth contact sleeve 328a are formed in a cylindrical shape.

A third contact member 327b and a spring 327c are disposed inside the third contact sleeve 327a. One end of the spring 327c is fixed to the fixed substrate 322, and the other end of the spring 327c is fixed to the third contact member 327b. Accordingly, the spring 327c biases the third contact member 327b in a direction away from the fixed substrate 322. The third contact member 327b is connected to the wiring mounted on the fixed substrate 322 via the third contact sleeve 327a and the spring 327c. Accordingly, the third contact member 327b is electrically connected to the discharge circuit of the circuit board 321 via the fixed board 322.

A fourth contact member 328b and a spring 328c are disposed inside the fourth contact sleeve 328a. One end of the spring 328c is fixed to the fixed substrate 322, and the other end of the spring 328c is fixed to the fourth contact member 328b. Accordingly, the spring 328c biases the fourth contact member 328b in a direction away from the fixed substrate 322. The fourth contact member 328b is connected to the wiring mounted on the fixed substrate 322 via the fourth contact sleeve 328a and the spring 328c. As a result, the fourth contact member 328b is electrically connected to the discharge circuit of the circuit board 321 through the fixed board 322.

The circuit board 321, the fixed board 322, the third contact sleeve 327a, the fourth contact sleeve 328a and the like are accommodated in the connector casing 323. The connector casing 323 can be formed of an insulating material such as resin. The outer surface of the connector casing 323 is covered with a decorative cover 324. The connector casing 323 has a casing body 325 and a lid 326. The lid 326 covers an opening 325 a formed on the upper surface of the casing main body 325 and is fixed to the casing main body 325.

Inside the casing body 325, a guide part 325b formed in a cylindrical shape is provided. The guide portion 325b is disposed between the third contact sleeve 327a and the fourth contact sleeve 328a. As shown in FIG. 6, the casing body 325 has an opening 325c that communicates with the inside of the guide portion 325b. FIG. 6 is a view of the second connector portion 32 as viewed from the direction of the arrow D3 shown in FIG.

A pair of bar springs 329 are provided inside the casing body 325, and a part of each bar spring 329 protrudes inside the guide portion 325b. As shown in FIGS. 6 and 7, the casing body 325 is formed with

openings

325 d and 325 e. The opening 325d communicates with the inside of the third contact sleeve 327a. The opening 325e communicates with the inside of the fourth contact sleeve 328a. The tips of the third contact member 327b and the fourth contact member 328b pass through the

openings

325d and 325e and project outside the casing body 325.

Next, the connecting member 4 will be described with reference to FIG.

The connecting member 4 has a knob 41 and a fastener 42. The knob 41 is made of an insulating material such as resin and has an operation part 41a, a shaft part 41b, and a support part 41c. The operation unit 41a is a part held by the user. The support portion 41 c supports the fastener 42. The shaft portion 41b is formed in a columnar shape. One end of the shaft portion 41b is fixed to the operation portion 41a, and the other end of the shaft portion 41b is fixed to the support portion 41c.

The fastener 42 has a flange portion 42a, a cylindrical portion 42b, and a pin 42c. The flange portion 42 a is formed in a disc shape and is fixed to the support portion 41 c of the knob 41. The cylindrical part 42b protrudes from the flange part 42a, and the pin 42c protrudes from the tip surface of the cylindrical part 42b. The pin 42c is provided at the center of the tip surface of the cylindrical portion 42b, and the tip of the pin 42c is formed in a spherical shape.

Next, the operation for connecting the cable unit 3 to the battery unit 2 will be described.

The fastener 42 of the connecting member 4 is inserted from the opening 231b of the battery unit 2. Since the diameter of the opening 231b is larger than the diameter of the flange 42a of the fastener 42, the flange 42a is inserted inside the opening 231b. Since the diameter of the cylindrical portion 42 b is smaller than the inner diameter of the first contact member 24, the cylindrical portion 42 b is inserted inside the first contact member 24. Here, since the diameter of the flange portion 42 a is larger than the inner diameter of the first contact member 24, the flange portion 42 a contacts the first contact member 24 without being inserted inside the first contact member 24.

The diameter of the cylindrical portion 42 b is smaller than the diameter of the opening 27 a of the second contact casing 27 and the diameter of the second opening 232 b of the lid 232. For this reason, the cylindrical part 42b penetrates the first contact member 24 and penetrates the opening 27a and the second opening 232b. Since the pin 42c is provided on the tip surface of the cylindrical portion 42b, the pin 42c protrudes to the outside of the battery unit 2.

The second connector portion 32 of the cable unit 3 is disposed along the lid 232 of the battery unit 2. At this time, the pin 42c protruding to the outside of the battery unit 2 passes through the opening 325c of the casing body 325 and is inserted inside the guide portion 325b. Since a part of the pair of bar springs 329 protrudes inside the guide portion 325b, the pin 42c engages with the pair of bar springs 329. Thereby, it can prevent that pin 42c slips out from the guide part 325b, and can keep the 2nd connector part 32 of the cable unit 3 connected with the battery unit 2 (refer FIG. 9).

In the present embodiment, an opening 322a is formed in the fixed substrate 322 in order to prevent the pin 42c inserted in the guide portion 325b from coming into contact with the fixed substrate 322. Note that the opening 322a may not be formed in the fixed substrate 322 as long as the fixed substrate 322 is away from the pin 42c inserted in the guide portion 325b.

When the pin 42c is engaged with the pair of bar springs 329, the tip of the third contact member 327b comes into contact with the second contact member 26 of the battery unit 2. Here, the third contact member 327 b is electrically connected to the positive cable 332, and the second contact member 26 is electrically connected to the positive terminal 21 b of the battery module 21. For this reason, the positive cable 332 is electrically connected to the positive terminal 21 b of the battery module 21.

Further, when the pin 42c is engaged with the pair of bar springs 329, the tip of the fourth contact member 328b comes into contact with the tip surface of the cylindrical portion 42b. Since the flange portion 42a of the fastener 42 is in contact with the first contact member 24, the first contact member 24 is electrically connected to the negative cable 331 via the fastener 42 and the fourth contact member 328b. The The first contact member 24 is electrically connected to the negative terminal 21 a of the battery module 21. For this reason, the negative cable 331 is electrically connected to the negative terminal 21 a of the battery module 21.

As described above, when the second connector portion 32 of the cable unit 3 is coupled to the battery unit 2 and the connector 311 of the cable unit 3 is connected to an electronic device (not shown), the battery unit is connected via the cable unit 3. 2 and the electronic device can be electrically connected. Thereby, the electric power of the battery module 21 can be supplied to an electronic device, and the battery built in the electronic device can be charged.

In the present embodiment, the first connector portion 31 of the cable unit 3 can be fixed to the battery unit 2. This point will be described below.

When the 2nd connector part 32 of the cable unit 3 is connected with the battery unit 2 using the connection member 4, the charging device 1 will be in the state shown in FIG. In the state shown in FIG. 1, the 1st connector part 31 is movable. Here, the opening 333 of the cable body 33 is formed in a shape along the outer shape of the operation portion 41 a of the knob 41. For this reason, the operation part 41 a of the knob 41 can be inserted into the opening 333 of the cable body 33.

Since the shaft portion 41 b of the knob 41 is longer than the thickness of the cable main body 33, the operation portion 41 a passes through the opening 333. When the connecting member 4 is rotated in a state where the operation portion 41a penetrates the opening 333, the charging device 1 is in the state shown in FIG. Here, when the connecting member 4 is rotated, the front end surface of the cylindrical portion 42b only rotates around the center of the front end surface. For this reason, the front end surface of the cylindrical portion 42b can be kept in contact with the fourth contact member 328b.

As shown in FIG. 10, by rotating the connecting member 4 and bringing the operation portion 41a into contact with the surface of the cable body 33, it is possible to prevent the operation portion 41a from coming out of the opening 333. Thereby, the first connector part 31 of the cable unit 3 can be fixed to the battery unit 2. As described above, by fixing the first connector portion 31 and the second connector portion 32 of the cable unit 3 to the battery unit 2, the charging device 1 can be easily carried.

In the present embodiment, the first contact member 24 is electrically connected to the negative electrode terminal 21a of the battery module 21, and the second contact member 26 is electrically connected to the positive electrode terminal 21b of the battery module 21. It is not limited. Specifically, the first contact member 24 can be electrically connected to the positive terminal 21b, and the second contact member 26 can be electrically connected to the negative terminal 21a. In this case, the negative cable 331 may be electrically connected to the second contact member 26 and the positive cable 332 may be electrically connected to the first contact member 24.

On the other hand, the shape (outer shape) of the flange portion 42a and the columnar portion 42b in the connecting member 4 may be other shapes (for example, polygons) other than a circle. In order to electrically connect the second connector portion 32 of the cable unit 3 to the battery unit 2, the flange portion 42a is in contact with the first contact member 24, and the cylindrical portion 42b is in contact with the fourth contact member 328b. That's fine.

In the present embodiment, the pin 42c of the connecting member 4 is engaged with the pair of bar springs 329, but is not limited thereto. That is, the portion that engages with the pin 42c (referred to as an engaging portion) may be any structure as long as it can engage with the pin 42c or release the engagement with the pin 42c. Specifically, it is only necessary that the engaging portion expands when pushed by the pin 42c, and the engaging portion can return to the original state when the pin 42c passes.

In the present embodiment, the operation part 41a of the knob 41 is inserted into the opening 333 of the cable body 33 by rotating the connecting member 4, but the present invention is not limited to this. Specifically, the operation portion 41 a can be elastically deformed and inserted into the opening 333. Since the operation unit 41 a returns to the original state after passing through the opening 333, the operation unit 41 a can be prevented from coming out of the opening 333 by bringing the operation unit 41 a into contact with the cable body 33. Thereby, the 1st connector part 31 of the cable unit 3 can be fixed to the battery unit 2 similarly to this embodiment.

Hereinafter, modifications of the present embodiment will be described.

(Modification 1)
In the present embodiment, the second connector portion 32 of the cable unit 3 is connected to the battery unit 2 using the connecting member 4, but this is not a limitation. That is, the connecting member 4 can be omitted and the second connector portion 32 can be directly connected to the battery unit 2. This specific structure will be described below.

The first contact member 24 and the second contact member 26 can be provided on the same surface of the battery case 23. In addition, a pin that is inserted into the guide portion 325b of the second connector portion 32 and engages with the rod spring 329 is provided on the outer surface of the battery case 23 provided with the first contact member 24 and the second contact member 26. it can. By engaging this pin with the bar spring 329, the second connector portion 32 can be connected to the battery unit 2. And the 3rd contact member 327b and the 4th contact member 328b provided in the 2nd connector part 32 can be made to contact the 2nd contact member 26 and the 1st contact member 24, respectively.

On the other hand, the second connector portion 32 can be connected to the battery unit 2 without engaging the pin with the bar spring 329. This structure will be described with reference to FIG.

11, a first contact member 24 and a second contact member 26 are provided on the surface (in the same plane) of the battery unit 2. The connector portion 34 corresponding to the second connector portion 32 described above has a recess 34a into which a part of the battery unit 2 is inserted. The recess 34 a is provided with a third contact member 34 b that contacts the second contact member 26 and a fourth contact member 34 c that contacts the first contact member 24.

A part of the battery unit 2 can be inserted into the recess 34a of the connector part 34 by moving the connector part 34 in the direction of the arrow D4 with respect to the battery unit 2. Here, the connector part 34 can be connected to the battery unit 2 by providing the engaging part which mutually engages in the outer surface of the battery unit 2, and the recessed part 34a. The engaging part formed in each of the battery unit 2 and the recessed part 34a can be constituted by an uneven surface.

By engaging the engaging portions formed in the battery unit 2 and the recess 34a with each other, it is possible to prevent the connector portion 34 from moving from the battery unit 2 in the direction of the arrow D5. That is, the connector part 34 can be moved only in the direction of the arrow D4 with respect to the battery unit 2 by the engaging part formed in the battery unit 2 and the recessed part 34a.

The connector portion 34 described above can be provided at the other end of the cable body 33 as in the present embodiment. On the other hand, the cable body 33 can be omitted and the connector 311 can be provided in the connector portion 34.

(Modification 2)
In the present embodiment, the cable unit 3 is connected to the battery unit 2 and the electronic device, and is used to supply the electric power of the battery unit 2 to the electronic device. Here, a cable unit 3 having a function other than power supply to the battery unit 2 can be prepared.

Specifically, electrical components other than the discharge circuit described in the present embodiment can be provided in the cable unit 3. The electrical component can be provided on at least one of the first connector portion 31 and the second connector portion 32. Examples of the electrical parts include light emitting elements such as LEDs, receivers used in GPS (Global Positioning System), and wireless communication devices used in wireless communication standards such as Bluetooth (registered trademark).

As a power source for the electrical component, a battery in an electronic device connected to the first connector portion 31 of the cable unit 3 or a battery unit 2 connected to the second connector portion 32 of the cable unit 3 is used. Can do.

When providing an electrical component in the 1st connector part 31, the 2nd connector part 32 can be connected with the battery unit 2, and the electric power from the battery unit 2 can be supplied to an electrical component. Here, the first connector portion 31 may not include the connector 311 connected to the electronic device. In this case, the cable unit 3 includes electrical components and can be used as a strap connected to the battery unit 2.

When providing an electrical component in the 1st connector part 31, the 1st connector part 31 can be connected to an electronic device, and the electric power from the battery in an electronic device can be supplied to an electrical component. In this case, the second connector portion 32 may not be electrically connected to the battery unit 2. That is, the second connector portion 32 may be merely mechanically connected to the battery unit 2 using the connecting member 4. In this case, since it is not necessary to electrically connect the second connector portion 32 to the first connector portion 31, the negative cable 331 and the positive cable 332 can be omitted.

When providing an electrical component in the 2nd connector part 32, the 2nd connector part 32 can be connected to the battery unit 2, and the electric power from the battery unit 2 can be supplied to an electrical component. Here, the first connector portion 31 may not include the connector 311 connected to the electronic device. In this case, the cable unit 3 includes electrical components and can be used as a strap connected to the battery unit 2. Further, since there is no need to electrically connect the first connector portion 31 and the second connector portion 32, the negative cable 331 and the positive cable 332 can be omitted.

When providing an electrical component in the 2nd connector part 32, the 1st connector part 31 can be connected to an electronic device, and the electric power from the battery in an electronic device can be supplied to an electrical component. In this case, the second connector portion 32 may not be electrically connected to the battery unit 2. That is, the second connector portion 32 may be merely mechanically connected to the battery unit 2 using the connecting member 4.

(Modification 3)
In the present embodiment, the cable unit 3 can be connected to the battery unit 2, or the cable unit 3 can be disconnected from the battery unit 2. In this modification, the cable unit 3 and the battery unit 2 can be configured integrally. Specifically, the second connector portion 32 is omitted, and the negative cable 331 and the positive cable 332 protruding from the other end of the cable body 33 are electrically connected to the negative terminal 21a and the positive terminal 21b of the battery module 21. Can do.

(Second Embodiment)
A charging device according to a second embodiment of the present invention will be described. In this embodiment, the same code | symbol is used about the member which has a function equivalent to the member demonstrated in 1st Embodiment. Hereinafter, differences from the first embodiment will be mainly described.

First, the structure of the battery unit 2 will be described with reference to FIG.

The battery unit 2 has a battery module 21 and a battery case 23. The battery case 23 includes a first case 233 and a second case 234, and the first case 233 and the second case 234 cover the entire surface of the battery module 21. The flange portion 233a formed on the outer edge of the first case 233 is overlapped with the flange portion 234a formed on the outer edge of the second case 234 and fixed to each other. For example, the

flange portions

233a and 234a can be fixed using an adhesive.

The first contact member 24 is fixed to the negative electrode terminal 21a of the battery module 21 and is electrically connected to the negative electrode terminal 21a. The first contact member 24 is formed in a ring shape, and the negative electrode terminal 21 a is formed with an opening (not shown) that overlaps with the opening formed inside the first contact member 24. The second contact member 26 is fixed to the positive terminal 21b of the battery module 21 and is electrically connected to the positive terminal 21b.

A contact casing 25 made of an insulating material is disposed above the negative electrode terminal 21a and the positive electrode terminal 21b. The contact casing 25 is formed with an opening 25a penetrating the contact casing 25, and the first contact member 24 is disposed inside the opening 25a. In the second case 234, an opening 234b penetrating the second case 234 is formed at a position overlapping the opening 25a.

An insulating plate 28 made of an insulating material is disposed between the negative terminal 21a and the positive terminal 21b and the first case 233. The insulating plate 28 has a first opening 28a and a second opening 28b.

The first opening 28 a overlaps the first opening 233 b formed in the first case 233. The second contact member 26 of the battery module 21 passes through the first opening 28 a and the first opening 233 b and is exposed on the outer surface of the first case 233. The second opening 28 b overlaps with an opening (not shown) of the negative electrode terminal 21 a and also overlaps with a second opening 233 c formed in the first case 233.

13 is a diagram when the battery unit 2 is viewed from the direction of the arrow D6 shown in FIG. 12, and FIG. 14 is a diagram when the battery unit 2 is viewed from the direction of the arrow D7 shown in FIG. As shown in FIG. 13, the first contact member 24 is exposed inside the opening 234b. On the other hand, as shown in FIG. 14, the second contact member 26 is exposed from the first opening 233 b on the outer surface of the first case 233. Here, the first contact member 24 is not exposed inside the second opening 233c.

The cable unit 3 includes a cable body 33, a first connector portion 31 provided at one end of the cable body 33, and a second connector portion 32 provided at the other end of the cable body 33. The cable body 33 includes two divided

bodies

33A and 33B, a negative cable 331, and a positive cable 332. The negative electrode cable 331 and the positive electrode cable 332 are disposed between the two divided

bodies

33A and 33B.

The first connector portion 31 has a connector 311, and the connector 311 is fixed to the first connector casing 315. One end of the negative cable 331 and one end of the positive cable 332 are connected to the connector 311.

The first connector casing 315 is accommodated in the second connector casing 316. One end of the cable body 33 is also accommodated in the second connector casing 316. The second connector casing 316 includes two

sub casings

316A and 316B.

The sub casing 316A is provided with a cylindrical guide portion 316a, and a thread groove is formed on the inner peripheral surface of the guide portion 316a. The hole formed inside the guide portion 316a is formed to the outer surface of the sub casing 316A. Here, the 1st connector casing 315 is arrange | positioned in the position which does not interfere with the guide part 316a, specifically, the position of the left side of FIG. 15 with respect to the guide part 316a.

Further, a pin 316b is formed in the sub casing 316A. The pin 316b passes through an opening 33a2 formed at one end of the divided body 33B and an opening 33a1 formed at one end of the divided body 33A. Thereby, one end of the cable body 33 can be fixed to the second connector casing 316. Here, the negative electrode cable 331 and the positive electrode cable 332 are disposed on both sides of each of the openings 33a1 and 33a2.

A recess 316c is formed on the outer surface (upper surface) of the sub casing 316B, and an opening 316d penetrating the sub casing 316B is formed on the bottom surface of the recess 316c. The opening 316d overlaps with a hole formed inside the guide part 316a of the sub casing 316A.

The connector cover 314 is detachably attached to the second connector casing 316. Specifically, a convex portion 316e is formed on the second connector casing 316, and a connector cover 314 is attached to the convex portion 316e. Half of the convex part 316e is formed in the sub casing 316A, and the other half (not shown) of the convex part 316e is formed in the sub casing 316B. A first connector casing 315 is disposed inside the convex portion 316e, and the connector 311 protrudes from the second connector casing 316. By attaching the connector cover 314 to the second connector casing 316, the connector cover 314 can cover the connector 311.

The connecting member 5 includes a head portion 5a, a first shaft portion 5b protruding from the head portion 5a, a second shaft portion 5c protruding from the first shaft portion 5b, and a third shaft portion protruding from the second shaft portion 5c. 5d. A groove 5e is formed on the outer surface (upper surface) of the head 5a. In the present embodiment, the head 5a is formed in a circular shape, but may be formed in another shape. The head 5a (that is, the connecting member 5) can be rotated by inserting a jig (not shown) into the head 5a.

Threaded grooves are formed on the outer peripheral surface of the first shaft portion 5b and the outer peripheral surface of the third shaft portion 5d. The diameter of the second shaft portion 5c is smaller than the diameter of the first shaft portion 5b and smaller than the diameter of the third shaft portion 5d. The diameter of the third shaft portion 5d is smaller than the diameter of the first shaft portion 5b. The diameter of the third shaft portion 5d may be equal to the diameter of the first shaft portion 5b. An insulating ring 5f made of an insulating material is fixed to the outer peripheral surface of the second shaft portion 5c.

The connecting member 5 is inserted into the recess 316c and the opening 316d of the second connector casing 316. Here, the recessed part 316c is formed in the size in which the head 5a fits. The diameter of the opening 316d is smaller than the diameter of the head 5a, and the first shaft 5b, the second shaft 5c, and the third shaft 5d are inserted into the opening 316d. When the head 5a is brought into contact with the bottom surface of the recess 316c, the second shaft portion 5c and the third shaft portion 5d penetrate the guide portion 316a and project from the outer surface of the sub casing 316A.

The second connector portion 32 has a connector casing 323, and the connector casing 323 is constituted by sub-casings 323A and 323B. The sub casing 323A has an opening 323a and a pin 323b, and the outer surface of the sub casing 323A is covered with a decorative cover 324. The opening 323a passes through the sub casing 323A. The sub casing 323B includes a first opening 323c, a second opening 323d, and a spacer 323e. The first opening 323c and the second opening 323d penetrate the sub casing 323B. The spacer portion 323e protrudes from the outer surface (upper surface) of the sub casing 323B.

A fixed substrate 322 is disposed inside the connector casing 323. As in the first embodiment, a discharge circuit for controlling discharge of the battery module 21 is mounted on the fixed substrate 322. Here, the fixed board | substrate 322 is arrange | positioned in the position which does not interfere with the pin 323b of 323 A of subcasings. The other end of the negative cable 331 and the other end of the positive cable 332 are fixed to the fixed substrate 322.

The fixed substrate 322 has a guide portion 322b formed in a cylindrical shape, and a screw groove is formed on the inner peripheral surface of the guide portion 322b. The guide part 322b is electrically connected to the negative cable 331. A hole formed inside the guide portion 322b penetrates the fixed substrate 322. The upper end of the hole formed inside the guide part 322b overlaps with the first opening 323c of the sub casing 323B, and the lower end of this hole overlaps with the opening 323a of the sub casing 323A.

The fixed substrate 322 has contact pins 322c, and the contact pins 322c are electrically connected to the positive cable 332. The outer peripheral surface (except for the tip) of the contact pin 322c is covered with an insulating layer made of an insulating material. The contact pin 322c is inserted into the second opening 323d of the sub casing 323B. Thereby, the fixed board | substrate 322 can be positioned with respect to the subcasing 323B.

The other end of the cable body 33 is accommodated in the connector casing 323. An opening 33b1 is formed at the other end of the divided body 33A of the cable body 33, and an opening 33b2 is formed at the other end of the divided body 33B. The pin 323b of the sub casing 323A passes through the openings 33b1 and 33b2 of the divided

bodies

33A and 33B. Thereby, the other end of the cable body 33 can be fixed to the connector casing 323.

16 and 17, the first connector portion 31 and the second connector portion 32 can be fixed to the battery unit 2 by using the connecting member 5. FIG. 16 is a diagram mainly showing a state in which the first connector portion 31 is fixed to the battery unit 2. FIG. 17 is a diagram mainly showing a state in which the second connector portion 32 is fixed to the battery unit 2.

When the first connector part 31 and the second connector part 32 are fixed to the battery unit 2, a part of the first connector part 31 and a part of the second connector part 32 are arranged at positions away from the battery unit 2. . A spacer portion 323 e of the connector casing 323 is disposed between the first connector portion 31 and the second connector portion 32 outside the battery unit 2.

By arranging the spacer portion 323e in this way, the interval between the first connector portion 31 and the second connector portion 32 can be maintained at a predetermined interval. Thereby, it can suppress that the 1st connector part 31 inclines with respect to the battery unit 2, or the 2nd connector part 32 inclines with respect to the battery unit 2. FIG. The tip of the spacer portion 323e may be in contact with the outer surface of the second connector casing 316 (specifically, the subcasing 316A), or the second connector casing 316 (specifically, the subcasing 316A). It may be away from the outer surface.

FIG. 18 is a cross-sectional view taken along the line AA shown in FIG. As shown in FIG. 18, when the head portion 5a of the connecting member 5 is in contact with the recess 316c, the first shaft portion 5b is located inside the guide portion 316a and the outer peripheral surface of the first shaft portion 5b. The thread groove formed in the engagement with the thread groove formed on the inner peripheral surface of the guide portion 316a. Here, the lower end surface of the first shaft portion 5b is separated from the first contact member 24, and the first shaft portion 5b and the first contact member 24 are in a non-conductive state.

The second shaft portion 5 c is located inside the opening 25 a of the contact casing 25 and is located inside the opening of the first contact member 24. Here, since the insulating ring 5f is disposed on the outer peripheral surface of the second shaft portion 5c, the second shaft portion 5c and the first contact member 24 are in a non-conductive state. Thus, since the 1st axial part 5b and the 2nd axial part 5c are a non-conduction state with respect to the 1st contact member 24, the connection member 5 and the 1st contact member 24 will be in a non-conduction state. .

The third shaft portion 5d of the connecting member 5 is located inside the guide portion 322b of the fixed substrate 322, and the screw groove formed on the outer peripheral surface of the third shaft portion 5d is formed on the inner peripheral surface of the guide portion 322b. It is engaged with the formed thread groove. As described above, the first shaft portion 5b of the connecting member 5 is engaged with the guide portion 316a, and the third shaft portion 5d is engaged with the guide portion 322b, whereby the first connector is interposed via the connecting member 5. The part 31 and the second connector part 32 can be fixed to the battery unit 2.

When the third shaft portion 5d is engaged with the guide portion 322b, the third shaft portion 5d (that is, the connecting member 5) is electrically connected to the negative cable 331 fixed to the fixed substrate 322. However, as described above, since the connecting member 5 and the first contact member 24 are in a non-conductive state, the first contact member 24 is not electrically connected to the negative electrode cable 331.

When the second connector portion 32 is fixed to the battery unit 2, the second contact member 26 exposed on the outer surface of the first case 233 is a contact pin 322c exposed on the outer surface of the connector casing 323 (sub-casing 323B). Contact with. As a result, the second contact member 26 and the fixed substrate 322 become conductive, and the second contact member 26 is electrically connected to the positive cable 332 fixed to the fixed substrate 322. Here, as described above, since the first contact member 24 and the negative electrode cable 331 are not electrically connected, the battery unit 2 is not short-circuited via the cable unit 3 and the connecting member 5.

In the state shown in FIGS. 16 to 18, the connecting member 5 is removed from the first connector part 31, the battery unit 2 and the second connector part 32 by rotating the connecting member 5 using a jig (not shown). Can do. That is, by rotating the connecting member 5, the engagement between the first shaft portion 5b and the guide portion 316a can be released, and the engagement between the third shaft portion 5d and the guide portion 322b can be released. When the connecting member 5 is removed, the first connector portion 31 and the second connector portion 32 are detached from the battery unit 2.

After removing the connecting member 5 as described above, only the second connector portion 32 can be fixed to the battery unit 2 using the connecting member 5. FIG. 19 is a diagram illustrating a state in which only the second connector portion 32 is fixed to the battery unit 2. As shown in FIG. 19, by removing the first connector portion 31 from the battery unit 2, the connector 311 of the first connector portion 31 can be connected to an electronic device (not shown) as in the first embodiment. .

FIG. 20 is a cross-sectional view taken along the line BB shown in FIG. As shown in FIG. 20, by removing the first connector portion 31 from the battery unit 2, the lower end surface of the first shaft portion 5 b of the connecting member 5 can be brought into contact with the first contact member 24. Thereby, the connection member 5 and the 1st contact member 24 will be in a conduction | electrical_connection state.

The third shaft portion 5d of the connecting member 5 is engaged with the guide portion 322b and is electrically connected to the negative cable 331 fixed to the fixed substrate 322. Accordingly, the negative cable 331 is electrically connected to the negative terminal 21 a of the battery module 21 via the fixed substrate 322, the connecting member 5, and the first contact member 24.

18, the second contact member 26 and the contact pin 322c are in contact with each other and are in a conductive state. Thus, the positive cable 332 is electrically connected to the positive terminal 21b of the battery module 21 via the contact pin 322c and the second contact member 26.

19 and 20, the power of the battery module 21 can be supplied to the electronic device by connecting the connector 311 of the first connector portion 31 to the electronic device (not shown). In addition, as shown in FIG. 20, while the lower end surface of the 1st axial part 5b contacts the 1st contact member 24, and the 3rd axial part 5d engages with the guide part 322b, the 2nd connector part 32 is Then, it remains fixed to the battery unit 2 via the connecting member 5.

Modifications

2 and 3 described above can also be applied to the second embodiment.

1: charging device, 2: battery unit, 3: cable unit,
4: Connecting member, 21: Battery module,
23: battery case, 24: first contact member,
26: second contact member, 31: first connector part,
32: 2nd connector part, 33: Cable main body, 311: Connector
321: Circuit board, 323: Connector casing,
327b: third contact member, 328b: fourth contact member, 41: knob,
41a: operation part, 41b: shaft part, 41c: support part,
42: Fastener, 42a: Flange part, 42b: Cylindrical part,
42c: Pin

Claims

A charging device for charging an electronic device,
A battery unit comprising an all-solid-state battery and a battery case that houses the all-solid-state battery;
A cable unit comprising: a first connector part detachably connected to the electronic device; a second connector part detachably connected to the battery unit; and a discharge circuit for controlling discharge of the battery unit;
A charging device comprising:
2. The charging device according to claim 1, further comprising a connecting member that connects the second connector part to the battery unit by penetrating the battery case and engaging with the second connector part.
The battery unit has a first contact member exposed on a first surface of the battery case, and a second contact member exposed on a second surface opposite to the first surface,
The connecting member has a flange portion that comes into contact with the first contact member, a column portion that protrudes from the flange portion, and a pin that is provided on a tip surface of the column portion and protrudes from the second surface,
The second connector portion is disposed on the second surface of the battery case, and a third contact member that contacts the second contact member and a fourth contact member that contacts the tip end surface of the pillar portion. And an engaging portion that engages with the pin,
The charging device according to claim 2.
The charging device according to claim 3, wherein the outer shape of the flange portion and the column portion is formed in a circular shape.
The connecting member has a knob held by a user;
5. The charging device according to claim 2, wherein the cable unit has an opening into which the knob is inserted at a position adjacent to the first connector portion. 6.
A connection that connects the first connector part and the second connector part to the battery unit by penetrating the first connector part and the battery case and engaging the first connector part and the second connector part. The charging device according to claim 1, further comprising a member.
The battery unit has a first contact member exposed on a first surface of the battery case, and a second contact member exposed on a second surface opposite to the first surface,
The connecting member is in contact with the first contact member when engaged with the second connector portion;
The second connector portion is disposed on the second surface of the battery case, and has a contact pin that contacts the second contact member.
The charging device according to claim 2.