JP4821705B2 - Terminal device - Google Patents

Description

  The present invention relates to a terminal device that is placed on a terminal stand with a charging function and charged from the terminal stand.

2. Description of the Related Art Conventionally, terminal devices such as a barcode handy terminal (BHT) and a mobile phone have been provided with a power receiving electrode that is electrically connected to an internal circuit in a terminal device body. When this terminal device is placed on a terminal stand with a charging function, it is charged by contact conduction with a charging terminal protruding from the terminal stand (for example, Patent Document 1).
JP 2003-348759 A

  However, if the power receiving electrode is exposed on the outer surface of the terminal device body, even if foreign matter or dirt adheres to the power receiving electrode, it is easy to remove or maintain them, but electrostatic noise is applied to the power receiving electrode. The internal circuit may be destroyed. As a countermeasure, there is a configuration in which the power receiving electrode is disposed in a recessed portion of the terminal device body to ensure an insulation distance, but in this case, the concave portion is clogged with foreign matter or the power receiving power is received. Even if foreign matter or dirt adheres to the electrode and contact failure occurs, there is a problem that foreign matter or dirt cannot be removed, that is, maintenance cannot be performed.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a terminal device in which maintenance of a power receiving electrode is easy and the influence of electrostatic noise does not affect an internal circuit. It is in.

  In order to achieve the above object, according to the first aspect of the present invention, the power receiving electrode is exposed on the outer surface of the terminal device main body and provided so as to be displaceable from the exposed state to the inside of the terminal device main body. Since the internal electrode is disposed so as to be opposed to the power receiving electrode with a gap, and the power receiving electrode is separated from the internal electrode by an elastic body to secure the gap, the terminal device is mounted on the terminal stand. When not placed, that is, in a normal state, the power receiving electrode can be kept exposed to perform maintenance such as removing foreign substances and dirt, and sufficient insulation can be secured by the air gap, so that electrostatic noise is applied to the internal circuit. If the terminal device main body is arranged on the terminal stand, power can be supplied (charged) to the internal circuit from the terminal stand.

Further, the power receiving electrode is separated into a power receiving electrode main conductor portion exposed on an outer surface of the terminal device main body and at least one power receiving electrode connection conductor portion, and the internal electrode is an internal electrode main body conducting to the internal circuit. The conductor part is separated into at least one internal electrode connection conductor part, and the power receiving electrode main conductor part and one end part of the internal electrode connection conductor part are opposed to each other with a gap therebetween. An end portion and one end portion of the receiving electrode connecting conductor portion face each other with a gap, and the other end portion of the receiving electrode connecting conductor portion and the internal electrode main conductor portion face each other with a gap, and the terminal device When the main body is disposed on the terminal table, the power receiving electrode main conductor part and the power receiving electrode connection conductor part are displaced against the urging force of the elastic body by the convex part or the charging terminal of the terminal table. Te, the power receiving electrode main conductor portion, Serial inner electrode connecting conductor portions, the power receiving electrode connection conductor portions, the inner electrode main conductor portion is configured to be electrically connected to the series. According to this, there are at least three gaps from the receiving electrode main conductor portion of the receiving electrode to the inner electrode main conductor portion of the internal electrode, and the insulation distance from the receiving electrode to the internal electrode can be increased. Further, protection against electrostatic noise can be further enhanced.
In this case, it is good also as a structure which equips the said terminal device main body with the discharge plate which contacts the said receiving electrode in the position exposed to the outer surface of this terminal device main body (invention of Claim 2). In this way, the internal circuit can be more reliably protected from electrostatic noise.
Moreover, it is good also as a structure which provides the flexible sealing member which airtightly seals between the said receiving electrode and the said terminal device main body (Invention of Claim 3). With this configuration, the gap between the power receiving electrode and the terminal device main body caused by the displacement can be reliably sealed even when the power receiving electrode is displaced, and foreign matter can be prevented from entering.

First, a first reference example for facilitating understanding of an embodiment (described later) of the present invention will be described with reference to FIGS. First, FIG. 1 shows a power receiving portion of a barcode handy terminal 1 as a terminal device. A power receiving opening 3 is formed at a lower end portion of, for example, a resin case 2 as a terminal device body of the barcode handy terminal 1. A discharge plate 4 is provided on the inner surface of the lower end of the case 2.

  Inside the case 2, a box-shaped internal electrode mounting member 5 having an open bottom surface is provided so as to surround the power receiving opening 3. The internal electrode mounting member 5 is provided with a pair of internal electrodes 6 and 7. The internal electrodes 6 and 7 are electrically connected to an internal circuit (not shown) (including a charging circuit).

  A movable body 8 is provided below the internal electrode mounting member 5 so as to be vertically displaced. The movable body 8 has a resin block body 10 in which a substrate 9 is integrated. A pair of power receiving electrodes 11 and 12 are incorporated in the block body 10. Since the power receiving electrodes 11 and 12 have the same configuration, the power receiving electrode 11 will be described. The power receiving electrode 11 includes a lower electrode 11 a attached to the lower surface of the substrate 9 and an upper electrode 11 b attached to the upper surface of the substrate 9. The lower electrode 11 a and the upper electrode 11 b are conductors (not shown) of the substrate 9. Conducted by the pattern. The lower electrode 11a and the upper electrode 11b are electrically connected to the discharge plate contact conductor 9a formed on the lower surface of the end portion of the substrate 9.

The upper electrode 11b is composed of a cylindrical main body part 11b1 and a movable part 11b2, and a lower part of the movable part 11b2 enters the cylindrical main body part 11b1 so that the movable part 11b2 is movable. It is always urged in the direction of arrow A by a spring (not shown) in the portion 11b1. Further, as shown in FIG. 2, a groove 11b3 is formed at the upper end of the movable portion 11b2.
For the other power receiving electrode 12, the same subscript is attached to the same functional portion as the power receiving electrode 11.

Further, on the upper left and right sides of the block body 10, there are formed push-up portions 10a and 10b for pushing up movable portion press portions 14b and 15b, which will be described later.
The movable body 8 is urged in the direction of arrow B by a compression coil spring (hereinafter referred to as a spring) 13 corresponding to an elastic body, and in a normal state, as shown in FIG. In this state, the lower surfaces of the power receiving electrodes 11 and 12 (the lower surface of the lower electrode 11a) are exposed to the outer surface of the case 2.

  In addition, movable part pressers 14 and 15 are provided inside the case 2 so as to be located beside the power receiving electrodes 11 and 12. Since these movable part pressers 14 and 15 have a bilaterally symmetrical configuration, the movable part presser 14 will be described. The movable portion presser 14 is configured by rotatably attaching a presser portion 14b to the upper end portion of the column portion 14a. The presser portion 14b is rotated in the direction of arrow C by a spring 14c as shown in FIG. It is energized. In the state shown in FIG. 1, the pressing portion 14b enters the groove portion 11b3 of the movable portion 11b2 and presses the movable portion 11b2 from above. That is, the upward protrusion of the movable portion 11b2 is restricted.

For the other movable part presser 15, the same subscript as that of the movable part presser 14 is attached to the same functional part as that of the movable part presser 14.
In the state of FIG. 1, the movable body 8 is in a limit position where the movable body 8 is urged and moved in the direction of arrow B by the spring 13. In this case, the discharge plate contact conductor 9 a at the end of the substrate 9 The discharge plate contact conductor 9 a is in conduction with the discharge plate 4. In this state, the power receiving electrodes 11 and 12 are exposed to the outer surface of the case 2. Since the spring 13 urges the movable body 8 to the limit position, the power receiving electrodes 11, 12 are separated from the internal electrodes 6, 7. A gap G is secured between the electrodes 6 and 7. In this case, the movable part pressers 14 and 15 press the movable parts 11b2 and 12b2 of the power receiving electrodes 11 and 12, and prevent the movable parts 11b2 and 12b2 from moving upward. The movable part pressers 14 and 15 contribute to increasing the gap G by preventing the movable parts 11b2 and 12b2 from moving.

  FIG. 2 shows a state in which the barcode handy terminal 1 is accommodated in the terminal stand 21 with a charging function. The terminal table 21 has a convex portion 22 at the center of the bottom of the accommodating concave portion 21 a and charging terminals 23 and 24 on the left and right portions of the convex portion 22. Since the charging terminals 23 and 24 have the same configuration, the charging terminal 23 will be described. The charging terminal 23 includes a lower terminal portion 23a, an upper terminal portion 23b provided on the lower terminal portion 23a so as to be vertically displaceable, and a spring (not shown) that urges the upper terminal portion 23b upward. . The upper end of the upper terminal portion 23b protrudes above the upper surface of the convex portion 22 when the barcode handy terminal 1 is not disposed. In addition, the same subscript is attached | subjected to the charging terminal 24 in the same component as the charging terminal 23.

  When the barcode handy terminal 1 is accommodated in the terminal table 21, the power receiving electrodes 11, 12 are brought into contact with the upper terminal portions 23 b, 24 b of the charging terminals 23, 24, and are relatively moved by the convex portion 22 of the terminal table 21. Thus, the movable body 8 is pushed in the direction of the arrow A, whereby the power receiving electrodes 11 and 12 are displaced in the direction of the arrow A, and the lifted portions 10a and 10b of the movable body 8 move the movable portion holding portions 14b and 15b. As a result, the movable portions 11b2 and 12b2 of the power receiving electrodes 11 and 12 are displaced in the direction of arrow A by the spring force of a spring (not shown), and are electrically connected to the internal electrodes 6 and 7. In this case, the discharge plate contact conductor 9 a of the substrate 9 is separated from the discharge plate 4 due to the displacement of the movable body 8.

According to such a first reference example , as shown in FIG. 1, the power receiving electrodes 11, 12 are provided so as to be exposed on the outer surface of the case 2 and displaceable from the exposed state to the inside of the case 2, The internal electrodes 6 and 7 that are electrically connected to the internal circuit are provided so as to be opposed to the power receiving electrodes 11 and 12 with a gap G, and the power receiving electrodes 11 and 12 are separated from the internal electrodes 6 and 7 by a spring 13. Therefore, in a state where the barcode handy terminal 1 is not arranged on the terminal table 21, that is, in a normal state, the power receiving electrodes 11 and 12 can be held in an exposed state, and maintenance such as removal of foreign matter and dirt is performed. In addition, sufficient insulation can be ensured by the gap G, electrostatic noise can be prevented from being applied to the internal circuit, and if the case 2 is arranged on the terminal table 21, the terminal Feeding from the base 21 to the internal circuit can (charge).

  In this case, since the case 2 is provided with the discharge plate 4 that is in contact with the power receiving electrodes 11 and 12 at positions where the power receiving electrodes 11 and 12 are exposed to the outer surface of the case 2, the internal circuit can be more reliably protected from electrostatic noise.

In addition, according to the first reference example , when the movable parts 11 and 2 are held in the contracted form by the movable parts presses 14 and 15 and the case 2 is accommodated in the terminal table 21. In addition to the power receiving electrodes 11 and 12 themselves being displaced in the direction of arrow A, the movable portions 11b2 and 12b2 are further projected in the direction of arrow A, so that the displacement stroke of the movable body 8 in the direction of arrow A is short. However, the strokes of the tips of the movable portions 11b2 and 12b2 of the power receiving electrodes 11 and 12 can be increased. In other words, even if the gap G is increased, the power receiving electrodes 11 and 12 can be moved inside the movable body 8 with a short stroke. It can conduct to the electrodes 6 and 7. Therefore, a large gap G can be obtained and the influence of electrostatic noise can be further eliminated.

Next, FIGS. 5 and 6 show a second reference example , and this second reference example will be described. The case 32 has power receiving openings 33 and 34, and a discharge plate 35 is provided on the entire inner surface of the case 32. Further, an inner surface material 36 made of rubber is attached to the inner peripheral surface of the discharge plate 35. In the inner surface material 36, a portion corresponding to the bottom of the case 2 is configured as a flexible seal member 36A. The sealing member 36A is bonded to the peripheral portions of the power receiving electrodes 37 and 38 and hermetically opens the power receiving opening at the bottom of the case 2 in order to hermetically seal between the power receiving electrodes 37 and 38 and the case 2. 33 and 34 are adhered to the peripheral portions. The inner surface material 36 including the sealing member 36A also functions as an insulating material.

  The power receiving electrodes 37 and 38 are supported by the seal member 36A so as to be displaceable in the direction of arrow A. In this state, the power receiving electrodes 37 and 38 are exposed from the power receiving openings 33 and 34 to the outer surface. The internal electrodes 39 and 40 are provided at a lower end portion of the substrate 41 on which an internal circuit (not shown) is formed so as to face the power receiving electrodes 37 and 38 with a gap G therebetween. In this case, the seal member 36A urges the power receiving electrodes 37 and 38 in the direction of the arrow B due to its elasticity, so that the seal member 36A is separated from the internal electrodes 39 and 40 to secure the gap G. It also acts as a spring.

In this case, the power receiving electrodes 37 and 38 are electrically connected to the discharge plate 35 in the state of FIG. 5 (normal state).
The terminal table 51 shown in FIG. 6 has, for example, cylindrical convex portions 53 and 54 at the bottom of the accommodating concave portion 52, and charging terminals 56 and 57 in the convex portions 53 and 54. The charging terminals 56 and 57 have the same configuration as the charging terminals 23 and 24 in the first reference example , and the upper ends of the charging terminals 56 and 57 are in a state where the barcode handy terminal 1 is not arranged. The protrusions 53 and 54 protrude upward from the upper surface.

In the second reference example , when the case 2 is accommodated in the terminal table 51, the power receiving electrodes 37 and 38 are electrically connected to the charging terminals 56 and 57, and the power receiving electrodes 37 and 38 are in contact with the convex portions 53 and 54. , Are relatively displaced and are electrically connected to the internal electrodes 39 and 40. At this time, the seal member 36A remains airtightly sealed between the power receiving electrodes 37, 38 and the case 2 (power receiving openings 33, 34).

According to the second reference example , since the flexible sealing member 36A that hermetically seals between the power receiving electrodes 37 and 38 and the case 2 is provided, the power receiving electrodes 37 and 38 are displaced, The gaps (such as the power receiving openings 33 and 34) between the power receiving electrodes 37 and 38 and the case 2 generated by the above can be reliably sealed, and foreign matter can be reliably prevented from entering. In addition, since the seal member 36A also serves as a spring, the number of parts can be reduced.

7 and 8 show the third reference example, in the third reference example, (which denote the same functional parts) of the following points first reference example differs from . That is, the discharge plate 4 and the movable part pressers 14 and 15 of the first reference example are not provided. Further, the movable body 8 does not include the substrate 9 of the first reference example , the power receiving electrode 11 is configured integrally with the lower electrode 11a and the upper electrode 11b, and the power receiving electrode 12 is also configured integrally. ing. Further, stopper portions 8a and 8b are formed on both sides of the movable body 8, and stopper receiving portions 5a and 5b (see FIG. 8) for receiving the stopper portions 8a and 8b are formed on the internal electrode mounting member 5.

In the state of FIG. 7, the movable member 8 has been urged in the direction of arrow B by the spring 13, the stopper portion 8a, 8b and stopper receiving portion 5a, that is given a limit position of the arrow B direction by 5b.
9 to 11 show an embodiment of the present invention. In this embodiment , the power receiving electrode is composed of a plurality of members, and the internal electrode is also composed of a plurality of members so as to form a plurality of gaps. Different from the third reference example .

  That is, the power receiving electrode 61 is composed of a power receiving electrode main conductor 61a exposed to the outer surface of the case 2 and a power receiving electrode connecting conductor 61b, and the internal electrode 62 is electrically connected to the internal circuit. It is comprised from the part 62a and the internal electrode connection conductor part 62b. Each of these conductor parts 61a, 61b, 62a, 62b is made of a leaf spring. For example, when the power receiving electrode main conductor part 61a is described as a representative, it is formed in an arc shape as shown in FIG.

  The power receiving electrode main conductor 61a and one end of the internal electrode connecting conductor 62b face each other with a gap G1, and the other end of the internal electrode connecting conductor 62b and one end of the power receiving electrode connecting conductor 61b. Are opposed to each other with a gap G2, and the other end of the power receiving electrode connecting conductor 61b is opposed to the internal electrode main conductor 62a with a gap G3.

When the case 2 is disposed on the terminal table 21, the power receiving electrode main conductor 61a and the power receiving electrode connecting conductor 61b are displaced by the convex portion 22 as shown in FIG. The electrode main conductor portion 61a, the internal electrode connection conductor portion 62b, the power receiving electrode connection conductor portion 61b, and the internal electrode main conductor portion 62a are electrically connected in series.

The other power receiving electrode 63 and the internal electrode 64 are configured in the same manner as the power receiving electrode 61 and the internal electrode 62, respectively, and the same parts are denoted by the same subscripts.
According to the actual施例this, from the power receiving electrode main conductor section 61a in the power receiving electrode 61 (63) (63a), at least three voids to the internal electrode main conductor portions 62a (64a) in the inner electrode 62 (64) G1 , G2 and G3 exist, the insulation distance from the power receiving electrode 61 (63) to the internal electrode 62 (64) can be increased, and protection against electrostatic noise can be further enhanced. Note that there may be a plurality of power receiving electrode connecting conductors 61b and 63b and internal electrode connecting conductors 62b and 64b. In this way, the number of gaps can be further increased.

In addition, you may change a reference example and an Example as follows.
In the first reference example , the movable part pressers 14 and 15 that press the movable parts 11b2 and 12b2 may not be provided. In this case, the movable parts 11b2 and 12b2 protrude, but only the displacement stroke of the movable body 8 is provided. Therefore, the gap G may be secured. In the above embodiment, the power receiving electrode connecting conductor portions 61b, 63 b, inner electrode connecting conductor portions 62b, 64b may be a plurality of each, it is possible to increase the number of further gap In this way. In addition to the compression coil spring 13, the elastic body may be a leaf spring or a resin elastic body.

  Further, the terminal table may be a terminal table in which the charging terminal is provided in a protruding state in advance and the power receiving terminal is displaced by the charging terminal. In this case, the terminal table may not have a convex portion. good. In short, the power receiving electrode is displaced against the spring force of the spring by the convex portion or the charging terminal of the terminal base when the terminal device body is disposed on the terminal base with a charging function, Any structure may be used as long as it is electrically connected to the charging terminal. Furthermore, the present invention can be applied to a mobile phone or the like in addition to the barcode handy terminal.

Vertical front view of the receiving electrode part of the barcode handy terminal showing the first reference example Plan view of movable part presser Front view of the upper part of the movable part presser Longitudinal front view with barcode handy terminal placed on terminal stand FIG. 1 equivalent diagram showing a second reference example 4 equivalent diagram FIG. 1 equivalent diagram showing a third reference example 4 equivalent diagram FIG. 1 equivalent view showing an embodiment of the present invention 4 equivalent diagram Longitudinal section of the receiving electrode main conductor part of the receiving terminal

Explanation of symbols

  In the drawings, 1 is a barcode handy terminal (terminal device), 2 is a case (terminal device main body), 3 is a power receiving opening, 4 is a discharge plate, 5 is an internal electrode mounting member, 6 and 7 are internal electrodes, 8 Is a movable body, 11 and 12 are power receiving electrodes, 11b2 and 12b2 are movable parts, 13 is a spring (elastic body), 14 and 15 are movable part holders, 21 is a terminal table, 21a is a receiving recess, 22 is a convex part, 23 , 24 is a charging terminal, 32 is a case (terminal device body), 35 is a discharge plate, 36A is a sealing member, 37 and 38 are power receiving electrodes, 39 and 40 are internal electrodes, 51 is a terminal table, and 53 and 54 are convex portions. , 56, 57 are power receiving terminals, 61 is a power receiving electrode, 61a is a power receiving electrode main conductor, 61b is a power receiving electrode connecting conductor, 62 is an internal electrode, 62a is an internal electrode main conductor, 62b is an internal electrode connecting conductor, G, G1, G2, and G3 indicate voids .

Claims (3)

A terminal device body;
A power receiving electrode exposed on the outer surface of the terminal device body and displaceable from the exposed state into the terminal device body;
An internal electrode provided inside the terminal device body so as to be opposed to the power receiving electrode with a gap, and conducting to an internal circuit;
An elastic body that secures the gap by separating the power receiving electrode from the internal electrode;
The power receiving electrode is composed of a power receiving electrode main conductor exposed on the outer surface of the terminal device body, and at least one power receiving electrode connection conductor.
The internal electrode is composed of an internal electrode main conductor portion conducting to the internal circuit, and at least one internal electrode connection conductor portion,
The receiving electrode main conductor portion and one end portion of the internal electrode connecting conductor portion face each other with a gap, and the other end portion of the internal electrode connecting conductor portion and one end portion of the receiving electrode connecting conductor portion have a gap. And the other end of the receiving electrode connecting conductor portion and the internal electrode main conductor portion are opposed to each other with a gap, and the terminal device main body is protruded when the terminal device body is disposed on the terminal table. The receiving electrode main conductor portion and the receiving electrode connecting conductor portion are displaced against the urging force of the elastic body by the portion or the charging terminal, and the receiving electrode main conductor portion, the internal electrode connecting conductor portion, A terminal device characterized in that a receiving electrode connecting conductor portion and the internal electrode main conductor portion are electrically connected in series .   The terminal device according to claim 1, wherein the terminal device body includes a discharge plate that contacts the power receiving electrode at a position where the power receiving electrode is exposed to an outer surface of the terminal device body.   The terminal device according to claim 1, further comprising a flexible sealing member that hermetically seals between the power receiving electrode and the terminal device main body.

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