JP3042238B2 - Charging connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a cordless telephone or the like. When a device to be charged such as a slave unit is placed on a charger, an elastic contact moves in a non-contact state with a member surrounding a fixed contact for energization. The present invention relates to a charging connection device in which an energizing fixed contact and an elastic contact come into contact with each other.

[0002]

2. Description of the Related Art In recent cordless telephones, a slave unit connected to a master unit via a wireless line is generally of a rechargeable type for charging an internal battery. In this case, the child device that is calling the incoming call from the parent device is placed on the charger and charged.

FIG. 8 is a cross-sectional view showing the configuration of such a conventional slave unit and charger, and FIG. 9 is a top view showing the configuration of the charger shown in FIG. 8 and 9, this example has a child device 1 and a charger 4. The charger 4
A recess 5 into which the handset 2 of the handset 1 is fitted is provided. Further, it has a recess 6 into which the transmitter 3 of the handset 1 is fitted.

Further, as shown in FIG. 10, charging terminals 8a and 8b are provided on the outside of the receiver 2 of the handset 1 for charging or arranged on the same plane as surrounding members. Further, movable contacts 7a and 7b having elasticity are provided at positions corresponding to the charging terminals 8a and 8b of the child device 1 when the child device 1 is placed on the concave portion 5 of the charger 4.

Next, the operation and function of the conventional configuration will be described. When the child device 1 is placed on the charger 4, the movable contacts 7a and 7b elastically contact the charging terminals 8a and 8b, and the charging battery in the child device 1 is energized by this contact.

As described above, in a conventional cordless telephone,
Charging is performed with the child device placed.

[0007]

However, the conventional charging connection device has a charging terminal 8 disposed outside the handset 2 of the handset 1 for charging or disposed on the same surface as a surrounding member.
a, 8b are provided. Therefore, when holding a handset 1 by hand and making a telephone call, for example, sweat or the like adheres to the charging terminals 8a and 8b, so that the charging terminals 8a and 8b are easily stained. In addition, when the slave unit 1 is mounted on the charger 4, the movable contacts 7a and 7b rub against the outer member of the handset 2 and move to the contact position, so that the contact surfaces of the movable contacts 7a and 7b become dirty and become worn. There was a problem that defects occurred.

The present invention solves such a conventional problem and prevents contamination and wear of charging contacts in a non-charging device and a charger, etc., and provides an excellent and stable conduction for a long period of time. The purpose is to provide a charging connection device.

[0009]

In order to achieve this object, a charging connection device according to the present invention has a charging device and a device to be charged which is placed on the charging device to perform charging. A recess provided on one side of the device to be charged and a fixed contact for energization; an elastic contact provided on the other side of the charging device or the device to be charged, and elastically contacting the fixed contact for energization when placed on the charging device; A moving mechanism that moves the elastic contact to a member surrounding the energizing fixed contact in a non-contact state while moving to a position where the elastic contact comes into contact with the energizing fixed contact when the charged device is placed on the device. is there.

Further, the moving mechanism has a moving member that moves by abutment of a projection on a peripheral member of the fixed contact for energization, and the moving member contacts the elastic contact to urge the moving member in a concave direction. In addition, while moving to the contact position between the energizing fixed contact and the elastic contact, the elastic contact is moved to a non-contact state with the surrounding member of the energizing fixed contact, and at the contact position between the energizing fixed contact and the elastic contact. The projection of the moving member is recessed and fitted by the elasticity of the elastic contact.

[0011]

In the charging connection device of the present invention having such a configuration,
When the charged device is placed on the charging device, while the elastic contact moves to a position where the elastic contact comes into contact with the energizing fixed contact, the elastic contact moves in a non-contact state with a peripheral member of the energizing fixed contact. Therefore, the resilient contact does not move in contact with the surrounding member of the fixed contact for electric current, for example, the plastic exterior body, so that the charging contact is prevented from being stained and worn, and stable and reliable conduction is achieved for a long period of time.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a charging connection device according to an embodiment of the present invention.

FIG. 1 is a side view showing the configuration of an embodiment of the charging connection device of the present invention in a partial cross section. In FIG. 1, this example is a cordless telephone, which includes a cordless handset 11 that is connected to the master cordless handset by a wireless line, and a charger 14 for placing the cordless handset 11 and charging an internal charging battery (not shown). Have. Charger 14 is provided with recess 15 into which handset 12 of handset 11 is fitted. Further, the charger 14 is provided with the concave portion 1 in which the transmitter 13 of the handset 11 is fitted.
6.

Further, in this example, as will be described in detail below, a fixed contact portion 18 provided on the transmitter 13 side around the receiver 12 of the slave 11 is provided. Further, the concave portion 15 of the charger 14 has a movable contact portion 19 having elasticity, and the movable contact portion 19 does not contact the member of the handset 12 of the handset 11 when the handset 11 is placed on the charger 14. And a moving mechanism section 20 for drawing in the inside.

Next, the configuration of the fixed contact portion 18 of the receiver 12 of the handset 11 will be described in detail. FIG. 2 is a perspective view showing a detailed configuration of the fixed contact portion 18. As shown in FIG. In FIG.
The fixed contact portion 18 is connected to the transmitter 13 of the receiver 12 of the slave 11.
And fixed contacts 18a and 18b serving as plus (+) and minus (-) ends connected to a rechargeable battery (not shown) inside the slave unit 11, and between the fixed contacts 18a and 18b. Rectangular opening 1 provided in
8c is provided.

Next, the configurations of the movable contact portion 19 and the moving mechanism portion 20 provided in the concave portion 15 of the charger 14 will be described in detail.

FIG. 3 is a plan view showing the arrangement of the movable contact 19 and the moving mechanism 20. In FIG. 3, the movable contact 19 is provided with the slave 1 in the recess 15 of the charger 14.
The fixed contacts 18a and 18b are provided on the side of the recess 16 into which the first transmitter 13 is fitted, and on which the slave 11 is placed.
Movable contacts 19a, 19 which come into contact with each other elastically
b. Further, the movable contact 19a and the movable contact 1
9b is provided with a moving mechanism unit 20.

FIG. 4 is a perspective view showing a detailed configuration of the movable contacts 19a and 19b and the moving mechanism section 20, and FIG. 5 is a perspective view showing the configuration of the moving mechanism section 20 in a diffused manner. 4 and 5, the movable contacts 19a and 19b have V-shaped contact portions 21a and 21b and a contact portion 21b, respectively.
And an end (not shown) fixed thereto.
And a U-shaped portion 22b. The contact portion 21a has a similar configuration having an L-shaped portion.

The moving mechanism 20 moves the transmitter 13 of the slave unit 11 into the rectangular recessed part 18c provided in the receiver 12 of the slave unit 11 when the transmitter 13 of the slave unit 11 is fitted into the recess 15 as shown in FIG. Move in the direction of arrow m in the middle. As shown in FIG. 5, the moving mechanism 20 includes an upper moving member 23 having a triangular protrusion 20a inserted into a concave portion 18c provided on a side surface of the handset 12 of the handset 11, and an upper moving member 23. 23 and a lower moving member 24 which is arranged to be joined to the lower surface of the main body 20b.

The upper moving member 23 has a projection 20c on the lower surface of the main body 20b. On the upper surface of the main body 24a of the lower moving member 24, the main body 20 of the upper moving member 23 is provided.
A U-shaped groove 24b is formed in which the projection 20c of b is locked. Further, on both sides of the groove 24b of the main body 24a,
A locking portion 25a that contacts the protrusion 20a of the upper moving member 23 in an L-shaped portion (not shown) extending from the V-shaped contact portion 21a of the movable contact 19a;
Of the upper moving member 23 at the L-shaped portion 22b
A locking portion 25b that comes into contact on the 0a side is provided.

The upper moving member 23 and the lower moving member 24
Is composed of two separate parts for easy assembly, but it may be composed of a single member combining the two.

Next, the operation and function of the configuration of this embodiment will be described. FIG. 6 is a side view showing the operation of the fixed contact portion 18, the movable contact portion 19, and the moving mechanism portion 20 in a state where the slave device 11 is placed on the charger 14.

In FIG. 6, the tip of the projection 20a of the upper moving member 23 in the moving mechanism 20 abuts the exterior of the receiver 12 of the handset 11, and the receiver 12 is connected to the charger 1
4 into the recess 15. As a result, the protrusion 20a of the upper moving member 23 moves in the direction inside the receiver 12 indicated by the arrow direction n in FIG. At the same time, the lower moving member 24 moves. Further, the movable contacts 19a and 19b move together with the locking portions 25a and 25b of the main body 24a of the lower moving member 24. That is, the V-shaped contact portions 21a, 21b
Also moves in the arrow direction n in FIG.

The handset 12 of the handset 11 is connected to the charger 1
4 is completely pushed into the recess 15. FIG. 7 shows the charger 14
FIG. 9 is a side view showing the operation of the fixed contact portion 18, the movable contact portion 19, and the moving mechanism portion 20 in a state where the slave device 11 is placed on the portable device 11. In FIG. 7, the handset 1 of the handset 11
When 2 is completely pushed into concave portion 15 of charger 14, it moves so that the tip of protrusion 20 a of upper moving member 23 is fitted into concave portion 18 c of fixed contact portion 18 of child device 11. The movement in the direction of arrow r in FIG.
It moves by the elasticity of 19b. At the same time, the movable contact 19
The V-shaped contact portions 21a and 21b of the a and 19b also return to the positions before the movement, and at this time, the fixed contacts 18a and 1 in FIG.
8b. Thus, the internal battery (not shown) in the slave unit 11 is charged.

As described above, in this embodiment, when the slave unit 11 is placed on the charger 14, the contact portions 21ap21b of the movable contacts 19a, 19b do not contact the plastic material around the fixed contact portion 18. Thereby, the movable contact 19
The dirt and abrasion of the contact portions 21ap21b at the positions a and 19b are prevented.

[0026]

As is apparent from the above description, the charging connection device of the present invention can be used while the elastic contact contacts the fixed contact for energization when the device to be charged is placed on the charging device. Since the elastic contact moves in a non-contact state with the surrounding member of the energizing fixed contact, the elastic contact comes into contact with the surrounding member of the energizing fixed contact, for example, a plastic outer body, and does not move, thereby preventing the charging contact from being stained and worn. This has the effect of conducting stable and reliable conduction for a long period of time.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a charging connection device according to an embodiment of the present invention in a partial cross section.

FIG. 2 is a perspective view showing a detailed configuration of a fixed contact portion provided in the slave unit shown in FIG.

FIG. 3 is a plan view showing an arrangement state of a movable contact and a moving mechanism in FIG. 1;

FIG. 4 is a perspective view showing a detailed configuration of a movable contact and a moving mechanism in FIG. 3;

FIG. 5 is a perspective view showing the structure of the moving mechanism in FIG. 4 in a diffused manner;

FIG. 6 is a diagram illustrating a state in which a slave unit is placed on a charger according to the embodiment;
The side view which shows the operation state of the fixed contact part, the movable contact part, and the moving mechanism part of the start state.

FIG. 7 is a diagram illustrating a state in which a slave unit is placed on a charger according to the embodiment;
The side view which shows the operation state of the fixed contact part, the movable contact, and the moving mechanism part of the completion state.

FIG. 8 is a sectional view showing a configuration of a slave unit and a charger in a conventional cordless telephone.

9 is a top view showing the configuration of the charger shown in FIG.

FIG. 10 is a perspective view showing an arrangement state of charging terminals arranged in the slave unit shown in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Slave device 13 Transmitter 14 Charger 18 Fixed contact part 18a, 18b Fixed contact 19 Movable contact part 19a, 19b Movable contact 20 Moving mechanism part 21a, 21b Contact part 23 Upper moving member 24 Lower moving member 25a, 25b Lock Part

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q ^7/ 00-7/38

Claims (2)

(57) [Claims] 1. A charging device, comprising: a device to be charged, which is placed on the charging device to perform charging; a recess provided in one of the charging device or the device to be charged;
The elastic contact provided on the other of the charging device or the device to be charged and elastically contacts the fixed contact for energization when placed on the charging device, and the fixed contact for energization when the device to be charged is placed on the charging device. A charging mechanism for moving the elastic contact to a member surrounding the fixed contact for energization in a non-contact state while moving to a position where the elastic contact contacts. 2. The moving mechanism includes a moving member that moves when a projection comes into contact with a peripheral member of the fixed contact for energization, and the moving member comes into contact with an elastic contact to urge the moving member in a concave direction. And moving the elastic contact in a non-contact state with a surrounding member of the energizing fixed contact while moving to the contact position between the energizing fixed contact and the elastic contact. 2. The charging connection device according to claim 1, wherein a projection of the moving member is recessed and fitted by the elasticity of the elastic contact at a contact position with the charging contact.