JP7038024B2 - Charger and charging system - Google Patents

Description

The present invention relates to a charger for charging a mobile terminal device and a charging system including the charger and the mobile terminal device.

When charging a battery (rechargeable battery) included in a mobile terminal device such as a handy terminal or a smartphone, a charging cradle (hereinafter referred to as a charger) for holding the mobile terminal device is used. The mobile terminal device and the charger are each provided with a terminal for power supply. For example, the terminal of the charger is connected to an external power source such as a commercial power source via an AC adapter. When the mobile terminal device is attached to the charger, the terminals provided on both the mobile terminal device and the charger come into contact with each other, and the battery of the mobile terminal device is charged by an external power source. Further, the mobile terminal device and the charger are each provided with a communication terminal for communicating various information. In order to properly charge and communicate in the mobile terminal device and the charger, the terminals provided in each need to be well electrically connected.

Conventionally, in the charger, a technique has been proposed that enables good electrical connection even when foreign matter or the like adheres to each terminal of the mobile terminal device and the charger (see, for example, Patent Document 1). ..

Japanese Unexamined Patent Publication No. 2005-110475

However, in the above-mentioned conventional technique, since the terminal of the charger presses the terminal provided on the side surface of the mobile terminal device from the side surface side, the contact pressure between the terminals of the mobile terminal device and the charger May decrease and poor contact may occur.

An object of the present invention is to provide a charger and a charging system capable of preventing a decrease in contact pressure with a terminal of a mobile terminal device and preventing poor contact.

The charger according to one aspect of the present invention is a charger for charging a mobile terminal device, and protrudes from the housing of the charger in a state where the first urging force is applied in the first direction so as to be able to move forward and backward. The contact portion includes a first terminal provided with a contact portion and a fixing portion protruding from the housing of the charger in a second direction different from the first direction, and the contact portion is the first terminal of the mobile terminal device. When pushed into the charger in a third direction opposite to the direction, the first state of contact with the first portion of the contact surface of the second terminal of the mobile terminal device and the first portion contact with the first portion. A second state of contacting the second portion of the contact surface of the second terminal when the mobile terminal device is later pushed into the charger in a fourth direction opposite to the second direction. The contact portion slides from the first portion to the second portion in a state of being in contact with the contact surface of the second terminal, and the fixing portion is carried when the contact portion is in the second state. It is received by the receiving part of the terminal device.

The charging system according to another aspect of the present invention is a charging system including a mobile terminal device and a charger for charging the mobile terminal device, and the charger has a first urging force in a first direction. A first terminal having a contact portion that protrudes from the charger housing so as to be able to advance and retreat in the applied state, and a fixed portion that protrudes from the charger housing in a second direction different from the first direction. The mobile terminal device is provided with a second terminal at the bottom, and the contact portion is when the mobile terminal device is pushed into the charger in a third direction opposite to the first direction. The first state of contacting the first portion of the contact surface of the second terminal, and after contacting the first portion, the mobile terminal device is pushed into the charger in a fourth direction opposite to the second direction. In this case, the contact portion includes the second state of contacting the second portion of the contact surface of the second terminal, and the contact portion is in contact with the contact surface of the second terminal from the first portion. Sliding on the second portion, the fixing portion is received by the receiving portion of the portable terminal device when the contact portion is in the second state.

According to the present invention, it is possible to prevent a decrease in contact pressure between the terminal of the mobile terminal device and the terminal of the charger and prevent poor contact.

FIG. 1 is a perspective view showing an overall configuration of a charging system according to an embodiment of the present invention. FIG. 2A is a perspective view showing the overall configuration of the mobile terminal device according to the embodiment of the present invention. FIG. 2B is a perspective view showing the overall configuration of the charger according to the embodiment of the present invention. FIG. 3A is a side view showing a state before the mobile terminal device according to the embodiment of the present invention is attached to the charger. FIG. 3B is a side view showing a state in which the mobile terminal device according to the embodiment of the present invention is attached to the charger. FIG. 4A is a side view showing a first state before mounting the mobile terminal device according to the embodiment of the present invention on the charger. FIG. 4B is a cross-sectional view showing a first state before mounting the mobile terminal device according to the embodiment of the present invention on the charger. FIG. 4C is a cross-sectional view showing a first state before mounting the mobile terminal device according to the embodiment of the present invention on the charger. FIG. 4D is a cross-sectional view showing a first state before mounting the mobile terminal device according to the embodiment of the present invention on the charger. FIG. 4E is a cross-sectional view showing a first state before mounting the mobile terminal device according to the embodiment of the present invention on the charger. FIG. 5A is a side view showing a second state in which the mobile terminal device according to the embodiment of the present invention is inserted into a charger and placed. FIG. 5B is a cross-sectional view showing a second state in which the mobile terminal device according to the embodiment of the present invention is inserted into a charger and placed. FIG. 5C is a cross-sectional view showing a second state in which the mobile terminal device according to the embodiment of the present invention is inserted into a charger and placed. FIG. 5D is a cross-sectional view showing a second state in which the mobile terminal device according to the embodiment of the present invention is inserted into a charger and placed. FIG. 5E is a cross-sectional view showing a second state in which the mobile terminal device according to the embodiment of the present invention is inserted into a charger and placed. FIG. 6A is a side view showing a third state in which the mobile terminal device according to the embodiment of the present invention is pushed into the charger. FIG. 6B is a cross-sectional view showing a third state in which the mobile terminal device according to the embodiment of the present invention is pushed into the charger. FIG. 6C is a cross-sectional view showing a third state in which the mobile terminal device according to the embodiment of the present invention is pushed into the charger. FIG. 6D is a cross-sectional view showing a third state in which the mobile terminal device according to the embodiment of the present invention is pushed into the charger. FIG. 6E is a cross-sectional view showing a third state in which the mobile terminal device according to the embodiment of the present invention is pushed into the charger. FIG. 7A is a side view showing a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted to the back side with respect to the charger. FIG. 7B is a cross-sectional view showing a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted to the back side with respect to the charger. FIG. 7C is a cross-sectional view showing a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted to the back side with respect to the charger. FIG. 7D is a cross-sectional view showing a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted to the back side with respect to the charger. FIG. 7E is a cross-sectional view showing a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted to the back side with respect to the charger. FIG. 8A is a partially enlarged view of the third state shown in FIG. 6E. FIG. 8B is a partially enlarged view of the fourth state shown in FIG. 7E. 9A is a partially enlarged view of the third state shown in FIG. 6B. 9B is a partially enlarged view of the fourth state shown in FIG. 7B.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that each of the following embodiments is an example embodying the present invention and does not have the character of limiting the technical scope of the present invention.

The charger according to the present invention is, for example, a cradle having a function of charging a battery (rechargeable battery) included in a mobile terminal device such as a handy terminal or a smartphone. The charging system according to the present invention is composed of the portable terminal device and the charger.

FIG. 1 is a perspective view showing the appearance of the charging system 10 according to the embodiment of the present invention, and FIG. 2A is a perspective view showing the appearance of the rear side of the mobile terminal device 100 according to the embodiment of the present invention. FIG. 2B is a perspective view showing the appearance of the front side of the charger 200 according to the embodiment of the present invention. The charging system 10 includes a mobile terminal device 100 and a charger 200.

The portable terminal device 100 is, for example, a handy terminal used for product management and the like. The mobile terminal device 100 is roughly composed of an upper portion 110, inclined portions 131, 132, and a lower portion 120, a display 101 is provided on the front surface of the upper portion 110, and a numeric keypad 102 and a cursor key 103 are provided on the front surface of the lower portion 120. It is provided. The width of the lower portion 120 of the mobile terminal device 100 is narrower than the width of the upper portion 110 with the inclined portions 131 and 132 as boundaries, and the user mainly grips the lower portion 120 to use the mobile terminal device 100. When charging the mobile terminal device 100, the user attaches the mobile terminal device 100 to the charger 200. The bottom 150 of the mobile terminal device 100 is provided with a terminal 151 (see FIG. 4B and the like) for charging the battery 140 (see FIG. 2A). The terminal 151 includes a plurality of contact portions 151P (see FIG. 5B and the like). Terminal 151 is an example of the second terminal of the present invention.

As shown in FIG. 2A, a pair of left and right receiving portions 161, 162 (recesses) are provided on the back surface in the vicinity of the inclined portions 131 and 132 of the mobile terminal device 100, and the battery 140 is provided on the back surface of the lower portion 120. It is provided. The battery 140 is provided so as to project from the back surface of the mobile terminal device 100.

The charger 200 is, for example, a cradle for charging a handy terminal (portable terminal device 100). The housing of the charger 200 is roughly composed of a rear portion 210 and a front portion 220. The rear 210 is provided with a left wall 231 and a right wall 232 rising upwards and a receiving portion 240 formed between the left wall 231 and the right wall 232, and the front 220 has a left front wall rising upwards. A mounting portion 250 formed between 271 and the right front wall 272 and the left front wall 271 and the right front wall 272 is provided. A fixing portion 261 (convex portion) projecting in the D2 direction (corresponding to the second direction of the present invention) is provided on the inner surface of the left side wall 231, and a fixing portion 262 (convex portion) projecting in the D2 direction is provided on the inner surface of the right side wall 232. Section) is provided (see FIG. 2B). The mounting portion 250 is provided with a terminal 251 provided with a plurality of contact portions 251P (terminal pins) (see FIG. 5B and the like), and a protruding portion 252 arranged in the vicinity of the terminal 251. For example, two protrusions 252 are provided on the left and right sides of the terminal 251. The terminal 251 is an example of the first terminal of the present invention. The left front wall 271 and the right front wall 272 are examples of the front wall of the present invention.

The contact portion 251P has a housing (corresponding to the first urging force of the present invention) of the charger 200 in a state where the urging force F1 (see FIG. 4B) (corresponding to the first urging force of the present invention) is applied in the D1 direction (corresponding to the first direction of the present invention). It is provided so as to protrude from the mounting portion 250) so as to be able to advance and retreat. The protruding portion 252 protrudes from the housing (mounting portion 250) of the charger 200 in a state where the urging force F2 (see FIG. 4D) (corresponding to the second urging force of the present invention) is applied in the D1 direction. It is provided to do so. The urging force F2 is larger than the urging force F1. The D1 direction is a direction different from the D2 direction. For example, when the charger 200 shown in FIG. 1 is viewed from the side surface, the D1 direction and the D2 direction are orthogonal to each other.

When the mobile terminal device 100 is charged, it is pushed from above the charger 200 in the D3 direction (see FIG. 1) (corresponding to the third direction of the present invention) and attached to the charger 200. The bottom 150 of the mobile terminal device 100 is supported by the mounting portion 250 of the charger 200, and the battery 140 of the mobile terminal device 100 is received by the receiving portion 240 of the charger 200. Each of the left side wall 231 and the right side wall 232 has a shape inclined downward and inward, and when the mobile terminal device 100 is inserted from above the charger 200 in the D3 direction, the mobile terminal device 100 The inclined portions 131 and 132 are guided downward along the inner inclined surface of the left side wall 231 and the right side wall 232, and are abutted and supported by the left side wall 231 and the right side wall 232. The fixed portions 261,262 of the charger 200 are received by the receiving portions 161, 162 of the portable terminal device 100, respectively.

When the mobile terminal device 100 is attached to the charger 200, the plurality of contact portions 251P of the terminal 251 of the charger 200 come into contact with the plurality of contact portions 151P of the terminal 151 of the mobile terminal device 100, respectively, and the charger 200 and the portable terminal device 100 are carried. The terminal device 100 is electrically connected.

Although not shown, the charger 200 is connected to an external power source, for example, via a power cord including an AC / DC adapter. When the charger 200 detects that the mobile terminal device 100 is attached to the charger 200, the charger 200 charges the battery 140 of the mobile terminal device 100 with an external power source. The mobile terminal device 100 is operated by a power source supplied from a charged battery 140.

The plurality of contact portions 251P of the terminal 251 of the charger 200 include a GND terminal, a power supply terminal (VDD terminal), a communication terminal, and the like. When the mobile terminal device 100 is attached to the charger 200, the GND terminal, the power supply terminal (VDD terminal), and the communication terminal come into contact with the contact portion 151P of the terminal 151 of the mobile terminal device 100 in order. Charging starts when all the contact portions 251P come into contact with the contact portions 151P.

The charger 200 according to the present embodiment can be used with the mobile terminal device 100 even when foreign matter or the like adheres to the contact portion 251P of the terminal 251 of the charger 200 and the contact portion 151P of the terminal 151 of the mobile terminal device 100. It has a configuration that enables good electrical connection and prevents poor contact. Hereinafter, a specific connection method of the mobile terminal device 100 and the charger 200 will be described. Briefly, the mobile terminal device 100 is inserted into the charger 200 in the D3 direction by the user (see FIG. 3A) and then pushed in the D4 direction (tilt direction) (corresponding to the fourth direction of the present invention) (see FIG. 3A). By being knocked down), it is electrically connected to and fixed to the charger 200 (see FIG. 3B).

In the following, from the series of operations from FIG. 3A to FIG. 3B, that is, the state before the mobile terminal device 100 is attached to the charger 200 (see FIG. 3A), the mobile terminal device 100 is attached to the charger 200. A series of changes in the state up to the connected (fixed) state (see FIG. 3B) will be described in order with reference to FIGS. 4 to 7.

4A, 5A, 6A and 7A are side views of the charging system 10, and FIGS. 4B, 5B, 6B and 7B are terminals 151 and FIGS. 7A. A cross-sectional view of the charging system 10 when the portion including the terminal 251 is cut by a cutting line is shown, and in FIGS. 4C, 5C, 6C and 7C, the portion including the receiving portion 161 and the fixing portion 261 is cut by a cutting line. 4D, 5D, 6D and 7D show a cross-sectional view of the charging system 10 when the portion including the protrusion 252 is cut along a cutting line, and FIG. 4E shows a cross-sectional view of the charging system 10. 5E, 6E and 7E show a cross-sectional view of the charging system 10 when a portion of the left front wall 271 including the upper end 271T is cut along a cutting line.

In the following, for convenience of explanation, the components provided on the left and right sides of the mobile terminal device 100 and the charger 200 have the same configuration as each other, and therefore, one of them (the component on the left side) will be illustrated and described as necessary. , The other (the component on the right side) will be omitted.

4A to 4E show the first state before the mobile terminal device 100 is inserted into the charger 200. As shown in FIG. 4B, the mounting portion 250 of the charger 200 is provided with a terminal 251 and can move forward and backward from the mounting portion 250 with the urging force F1 applied to the terminal 251 in the D1 direction. A plurality of contact portions 251P provided so as to project to the surface are provided. In the first state, the contact portion 151P of the terminal 151 of the mobile terminal device 100 and the contact portion 251P of the terminal 251 of the charger 200 are in a non-contact state.

Further, as shown in FIG. 4D, the mounting portion 250 of the charger 200 protrudes from the mounting portion 250 so as to be able to advance and retreat from the mounting portion 250 in a state where the urging force F2 is applied in the D1 direction by the spring 252S (biasing member). The protruding portion 252 provided in the above is provided. In the first state, the bottom portion 150 of the portable terminal device 100 and the protruding portion 252 of the charger 200 are in a non-contact state. The length of the protruding portion 252 extending upward from the mounting portion 250 is longer than the length of the contact portion 251P extending upward from the mounting portion 250, and the upper end of the protruding portion 252 is a contact. It is located above the upper end of the portion 251P. Further, in the first state, as shown in FIG. 4C, the fixed portion 261 of the charger 200 is not received by the receiving portion 161.

5A to 5E show a second state in which the mobile terminal device 100 is inserted into the charger 200 and placed. That is, the second state indicates a state in which the user moves the mobile terminal device 100 in the D3 direction from the first state, places it on the charger 200, and releases the hand. In the second state, as shown in FIG. 5D, the bottom portion 150 of the mobile terminal device 100 and the protruding portion 252 of the charger 200 are in contact with each other. That is, the back surface of the mobile terminal device 100 is supported by the left side wall 231 and the right side wall 232, and the bottom portion 150 is supported by the protrusion 252. Here, the urging force F2 applied to the protrusion 252 from the spring 252S is larger than the force in the D1 direction according to the own weight of the portable terminal device 100. As a result, the movement of the mobile terminal device 100 downward (in the D3 direction) due to its own weight is restricted by the protrusion 252. Therefore, as shown in FIG. 5B, a gap M1 is formed between the contact portion 151P of the terminal 151 of the mobile terminal device 100 and the contact portion 251P of the terminal 251 of the charger 200, and both contact portions 151P and 251P are formed. Maintains a non-contact state.

Further, as shown in FIG. 5C, the fixed portion 261 of the charger 200 contacts and supports the back surface of the portable terminal device 100, and is not received by the receiving portion 161. Further, as shown in FIG. 5E, the lower portion 120 of the mobile terminal device 100 is internally received along the left front wall 271 and the right front wall 272, and a gap M2 is formed between the bottom portion 150 and the mounting portion 250. It is supported in a state of being.

6A to 6E show a third state in which the mobile terminal device 100 is pushed into the charger 200 from the second state. That is, the third state indicates a state in which the user applies a force in the D3 direction from the second state to push the mobile terminal device 100 downward. When the user pushes the mobile terminal device 100 in the direction of D3 against the urging force F2 with a force larger than the urging force F2 (see FIG. 5D) applied to the projecting portion 252, the projecting portion 252 is as shown in FIG. 6D. Retreats to the inside of the mounting portion 250 while receiving the urging force F2 in the D1 direction. Further, when the mobile terminal device 100 is pushed downward, as shown in FIG. 6B, the contact portion 151P of the terminal 151 of the mobile terminal device 100 and the contact portion 251P of the terminal 251 of the charger 200 come into contact with each other.

Here, the contact portion 151P of the portable terminal device 100 has a predetermined region (an example of the contact surface of the present invention) that enables electrical connection with the contact portion 251P of the charger 200. Therefore, when the contact portion 251P comes into contact with any part of the region (contact surface) of the contact portion 151P, the charger 200 and the portable terminal device 100 are electrically connected. Although details will be described later, in the third state, the contact portion 251P comes into contact with the first portion S1 of the contact surface of the contact portion 151P (see FIG. 6B).

Further, as shown in FIG. 6E, the lower portion 120 of the portable terminal device 100 is internally received along the left front wall 271 and the right front wall 272. Further, in the third state, as shown in FIG. 6C, the position of the fixed portion 261 and the position of the receiving portion 161 substantially coincide with each other when viewed from the display surface side of the mobile terminal device 100, and the mobile terminal device 100 is placed on the back side. When pushed into, the fixed portion 261 is in a state of being received (fitted) by the receiving portion 161.

In the third state, since the charger 200 and the mobile terminal device 100 are electrically connected, charging of the mobile terminal device 100 is started. In the third state, when the user releases the hand from the mobile terminal device 100, the mobile terminal device 100 is pushed upward by the urging force F2 in the D1 direction applied to the protrusion 252, and the contact portions 151P and 251P are pushed up. Returns to the non-contact state (second state described above). The third state is an example of the first state of the present invention.

7A to 7E show a fourth state in which the mobile terminal device 100 is tilted in the D4 direction with respect to the charger 200 from the third state. That is, the fourth state indicates a state in which the user applies a force in the D4 direction from the third state to push the mobile terminal device 100 toward the back side and then release the hand from the mobile terminal device 100. When the user pushes the mobile terminal device 100 in the D4 direction, as shown in FIG. 7E, the upper 110 of the mobile terminal device 100 rotates in the D4 direction with the upper end 271T of the left front wall 271 as a fulcrum, and the lower 120 Rotates in the D5 direction (corresponding to the fifth direction of the present invention). The front surface of the lower portion 120 of the mobile terminal device 100 abuts on the inner surface 221 of the left front wall 271.

As a result, as shown in FIG. 7C, the fixing portion 261 is received (fitted) by the receiving portion 161. Further, although the details will be described later, as shown in FIG. 7B, the contact portion 251P comes into contact with the second portion S2 of the contact surface of the contact portion 151P. That is, the contact portion 251P moves (slides) from the first portion S1 (see FIG. 6B) to the second portion S2 in a state of being in contact with the contact surface of the contact portion 151P.

That is, in the case of changing from the third state to the fourth state, the upper portion 110 of the mobile terminal device 100 moves in the D4 direction with the upper end portion 271T of the left front wall 271 as a fulcrum, so that the fixed portion 261 becomes the receiving portion 161. The contact portion 251P slides from the first portion S1 to the second portion S2 by being received and the bottom portion 150 of the portable terminal device 100 moves in the D5 direction with the upper end portion 271T of the left front wall 271 as a fulcrum.

When the user releases the hand from the mobile terminal device 100, as shown in FIG. 7D, a force corresponding to the urging force F2 is applied to the bottom portion 150 of the mobile terminal device 100 from the protrusion 252 in the D1 direction, and the mobile terminal device 100 is used. 100 is lifted in the D1 direction. The protrusion 252 applies a force corresponding to the urging force F2 to the bottom 150 of the mobile terminal device 100. As shown in FIG. 7C, the force applied to the mobile terminal device 100 in the D1 direction acts as a stress F3 in the D6 direction on the contact portion 161A between the fixing portion 261 and the receiving portion 161. Further, the reaction force F4 in the D7 direction with respect to the stress F3 acts on the contact portion 161A. The stress F3 and the reaction force F4 restrict the movement of the mobile terminal device 100 upward (in the D1 direction) and fix it to the charger 200.

In the fourth state, even if the user releases his / her hand from the mobile terminal device 100, the mobile terminal device 100 is fixed to the charger 200, so that the charging process is maintained. When the user applies a force to the mobile terminal device 100 in the direction opposite to the D4 direction, the fixed portion 261 is disengaged from the receiving portion 161 and the urging force F2 in the D1 direction applied to the protruding portion 252 causes the mobile terminal device 100. Is lifted in the D1 direction. As a result, the contact portions 151P and 251P return to the non-contact state (the above-mentioned second state), and the charging process is stopped. The fourth state is an example of the second state of the present invention.

By the above series of operations, the mobile terminal device 100 is attached to the charger 200 and charged. Next, the details of the operation when the contact portion 151P of the mobile terminal device 100 and the contact portion 251P of the charger 200 are electrically connected will be described.

8A is an enlarged view of FIG. 6E showing the third state, and FIG. 8B is an enlarged view of FIG. 7E showing the fourth state. 9A is an enlarged view of FIG. 6B showing the third state, and FIG. 9B is an enlarged view of FIG. 7B showing the fourth state.

As shown in FIG. 9A, in the third state, the contact portion 251P comes into contact with the first portion S1 of the contact surface of the contact portion 151P. At this time, a force corresponding to the urging force F1 in the D1 direction is applied to the first portion S1 of the contact portion 151P from the contact portion 251P. Therefore, the contact portion 251P is pressed against the first portion S1.

As shown in FIGS. 8A and 8B, when the user pushes (tilts) the mobile terminal device 100 in the D4 direction, the mobile terminal device 100 is carried by using the contact portion T1 between the upper end portion 271T of the left front wall 271 and the mobile terminal device 100 as a fulcrum. The upper part 110 of the terminal device 100 rotates in the D4 direction, and the lower part 120 rotates in the D5 direction. Then, the front surface of the lower portion 120 of the mobile terminal device 100 comes into contact with the inner surface 221 of the left front wall 271. In this way, when changing from the third state to the fourth state, the upper 110 of the mobile terminal device 100 moves by a predetermined distance in the D4 direction, and the lower 120 of the mobile terminal device 100 moves by the predetermined distance in the D5 direction. do.

As the mobile terminal device 100 rotates (moves), the contact position between the contact portion 251P and the contact surface of the contact portion 151P moves. Specifically, as shown in FIG. 9B, the contact position moves (slides) from the first portion S1 to the second portion S2 at a position corresponding to the predetermined distance. Since the urging force F1 in the D1 direction is constantly acting on the contact portion 251P, the contact state between the contact portion 251P and the contact portion 151P until the contact position moves from the first portion S1 to the second portion S2. Is maintained. It is desirable that the second portion S2 is the center position of the contact surface of the contact portion 151P.

As described above, the contact portion 251P is in the first state (FIG. 9A) in which the contact portion 251P comes into contact with the first portion S1 of the contact surface of the terminal 151 of the mobile terminal device 100 when the mobile terminal device 100 is pushed into the charger 200 in the D3 direction. (See) (corresponding to the first state of the present invention) and when the mobile terminal device 100 is pushed in the D4 direction after the contact portion 251P comes into contact with the first portion S1, it becomes the second portion S2 of the contact surface of the terminal 151. Includes a second state of contact (see FIG. 9B) (corresponding to the second state of the invention). Then, the contact portion 251P slides from the first portion S1 to the second portion S2 in a state of being in contact with the contact surface of the terminal 151. Further, the fixing portions 261,262 are received by the receiving portions 161, 162 of the portable terminal device 100 when the contact portions 251P are in the second state (see FIG. 7C).

According to the above operation, every time the mobile terminal device 100 is attached to the charger 200, the contact portion 251P of the charger 200 slides on the contact portion 151P of the mobile terminal device 100. Further, when charging is completed and the mobile terminal device 100 is removed from the charger 200, the contact portion 251P slides on the contact portion 151P. As a result, foreign matter adhering to the contact portions 151P and 251P is removed. Therefore, it is possible to prevent poor contact due to foreign matter adhering to the terminals 151 and 251 of the mobile terminal device 100 and the charger 200.

Further, according to the charging system 10 according to the present embodiment, the terminal 151 of the mobile terminal device 100 and the terminal 251 of the charger 200 are provided on the extension line in the direction of inserting the mobile terminal device 100 into the charger 200 (D3 direction). Further, the urging force F1 is applied to the contact portion 251P of the terminal 251 in the direction facing the D3 direction (D1 direction). Therefore, the contact pressure between the contact portions 151P and 251P can be increased as compared with the configuration in which the contact portion is pressed from the side surface side of the mobile terminal device. Therefore, it is possible to prevent poor contact due to the contact pressure between the terminals.

Further, according to the charging system 10 according to the present embodiment, when the mobile terminal device 100 is moved (or dropped) in the D3 direction, the protruding portion 252 of the charger 200 first reaches the bottom 150 of the mobile terminal device 100. Since they are in contact with each other (see FIG. 5D), it is possible to prevent the contact portion 251P of the charger 200 and the contact portion 151P of the mobile terminal device 100 from colliding vigorously. Normally, the contact portions 151P and 251P are surface-treated with gold plating in order to reduce the electrical resistance between the contacts, and if the contact portions collide strongly with each other, the gold plating may be peeled off. In this regard, according to the above configuration of the charging system 10 according to the present embodiment, the surfaces of the contact portions 151P and 251P can be protected, so that the above problem can be solved.

Further, since the charger 200 according to the present embodiment has a configuration of charging at the bottom 150 of the mobile terminal device 100, the configuration of the charger 200 is simplified and made smaller than the configuration of charging at the side surface of the mobile terminal device. Can be transformed into.

The present invention is not limited to the above configuration. For example, the spring 252S (urging member) may be made of another elastic member. Further, the fixing portions 261,262 (convex portions) may be provided in the mobile terminal device 100, and the receiving portions 161, 162 (concave portions) may be provided in the charger 200. Further, the tip shape of the contact portion 251P may be curved or flat.

10: Charging system 100: Portable terminal device 110: Top 120: Bottom 150: Bottom 151: Terminal 151P: Contact part 161: Receiving part 161A: Contact part 162: Receiving part 200: Charger 210: Rear 220: Front part 231: Left side wall 232: Right side wall 240: Receiving part 250: Mounting part 251: Terminal 251P: Contact part 252: Protruding part 252S: Spring 261: Fixed part 262: Fixed part 271: Left front wall 271T: Upper end part 272: Right front Wall F1: Biasing force F2: Biasing force F3: Stress F4: Reaction force M1: Gap M2: Gap S1: First part S2: Second part T1: Contact part

Claims (6)

A charger that charges mobile terminal devices.
A first terminal having a contact portion that protrudes from the charger housing so as to be able to advance and retreat while a first urging force is applied in the first direction.
A fixing portion protruding from the housing of the charger in a second direction different from the first direction,
Equipped with
The contact portion contacts the first portion of the contact surface of the second terminal of the mobile terminal device when the mobile terminal device is pushed into the charger in a third direction opposite to the first direction. When the mobile terminal device is pushed into the charger in the fourth direction opposite to the second direction after the contact portion comes into contact with the first portion, the second terminal is used. Includes a second state of contact with the second portion of the contact surface of the
The contact portion slides from the first portion to the second portion in a state of being in contact with the contact surface of the second terminal.
The fixed portion is received by the receiving portion of the portable terminal device when the contact portion is in the second state.
Charger. Further, a protrusion is further provided so as to be able to advance and retreat from the housing of the charger in a state where the second urging force is applied in the first direction.
When the mobile terminal device is placed on the charger, the bottom portion of the mobile terminal device is supported by the protruding portion, so that a gap is formed between the contact portion and the second terminal.
When the mobile terminal device is pushed into the charger in the third direction with a force larger than the second urging force after the gap is formed, the contact portion is in the first state.
The charger according to claim 1. When the contact portion is in the second state, the protruding portion applies a force corresponding to the second urging force to the bottom portion of the mobile terminal device.
The charger according to claim 2. When the contact portion is in the second state, the holding portion is carried by the stress corresponding to the second urging force and the reaction force against the stress acting on the contact portion where the fixing portion and the receiving portion are in contact with each other. Fix the terminal device to the charger,
The charger according to claim 2 or 3. The housing comprises a front wall disposed on the front side of the mobile terminal device.
When the contact portion changes from the first state to the second state, the fixed portion is moved in the fourth direction with the upper end portion of the front wall as a fulcrum. The contact portion becomes the first portion by being received by the receiving portion and by moving the bottom portion of the mobile terminal device in the fifth direction opposite to the fourth direction with the upper end portion of the front wall as a fulcrum. Sliding from to the second part,
The charger according to any one of claims 1 to 4. A charging system including a mobile terminal device and a charger for charging the mobile terminal device.
The charger has a first terminal having a contact portion that projects forward and backward from the housing of the charger in a state where the first urging force is applied in the first direction.
A fixing portion that protrudes from the housing of the charger in a second direction different from the first direction is provided.
The mobile terminal device has a second terminal on the bottom, and the mobile terminal device has a second terminal.
The contact portion is in a first state of contacting the first portion of the contact surface of the second terminal when the mobile terminal device is pushed into the charger in a third direction opposite to the first direction. When the mobile terminal device is pushed into the charger in the fourth direction opposite to the second direction after the contact portion comes into contact with the first portion, the contact surface of the second terminal Including the second state in contact with the second part,
The contact portion slides from the first portion to the second portion in a state of being in contact with the contact surface of the second terminal.
The fixed portion is received by the receiving portion of the portable terminal device when the contact portion is in the second state.
Charging system.

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