JP2020025408A - Charger and charging system - Google Patents

Abstract

To provide a charger and a charging system in which a failure in contact with a terminal of a mobile terminal device can be prevented.SOLUTION: A charger 200 includes a terminal 251 provided with: contact parts 251P retractably projecting from a casing of the charger 200 with an urging force F1 applied in a D1 direction; and fixation parts 261, 262 projecting in a D2 direction from the casing of the charger 200. The contact part 251P has a first state of coming into contact with a first portion S1 of a terminal 151 of the mobile terminal device 200 when a mobile terminal device 100 is pushed into the charger 200 in a D3 direction, and a second state of coming into contact with a second portion S2 of the terminal 151 when the mobile terminal device 100 is pushed in a D4 direction after the contact parts 251P come into contact with the first portions S1. The contact parts 251P slide from the first portions S1 to the second portions S2 while being in contact with a contact surface of the terminal 151. The fixation parts 261, 262 are received by reception parts 161, 162 of the mobile terminal device 100 when the contact pars 251P are in the second state.SELECTED DRAWING: Figure 9B

Description

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

  When charging a battery (rechargeable battery) included in a portable terminal device such as a handy terminal or a smartphone, a charging cradle (hereinafter, referred to as a charger) that holds the portable terminal device is used. Each of the portable terminal device and the charger is provided with a power terminal. For example, a terminal of the charger is connected to an external power supply such as a commercial power supply via an AC adapter. When the portable terminal device is mounted on the charger, terminals provided on both the portable terminal device and the charger come into contact with each other, and the battery of the portable terminal device is charged by the external power supply. The mobile terminal device and the charger are also provided with communication terminals for communicating various information. In order to perform appropriate charging and communication in the portable terminal device and the charger, it is necessary that terminals provided for the respective devices be electrically connected well.

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

JP 2005-110475 A

  However, the conventional technology has a configuration in which a terminal of a charger is pressed against a terminal provided on a side surface of a portable terminal device from a side surface, and therefore, a contact pressure between respective terminals of the portable terminal device and the charger. And contact failure may occur.

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

  A charger according to one embodiment of the present invention is a charger for charging a portable terminal device, and protrudes from a housing of the charger in a state where a first urging force is applied in a first direction. A first terminal provided with a contact portion, and a fixing portion protruding from a housing of the charger in a second direction different from the first direction. A first state of contacting the first portion of the contact surface of the second terminal of the portable terminal device when the battery is pushed into the charger in a third direction opposite to the direction, and a contact with the first portion; A second state of contacting a second portion of the contact surface of the second terminal when the portable terminal device is later pushed into the charger in a fourth direction opposite to the second direction. The contact portion is configured to contact the contact surface of the second terminal from the first portion to the second portion. Slid, the fixed portion, the contact portion is received in the receiving portion of the portable terminal device when the second state.

  A charging system according to another aspect of the present invention is a charging system including a portable terminal device and a charger for charging the portable terminal device, wherein the charger has a first urging force in a first direction. A first terminal having a contact portion protruding from the housing of the charger so as to be able to advance and retreat from the housing of the charger, and a fixing portion projecting from the housing of the charger in a second direction different from the first direction, The portable terminal device comprises a second terminal on the bottom, the contact portion, when the portable terminal device is pushed into the charger in a third direction opposite to the first direction, A first state of contacting the first portion of the contact surface of the second terminal; and the portable terminal device being pushed into the charger in a fourth direction opposite to the second direction after contacting the first portion. Contacting the second portion of the contact surface of the second terminal when the second terminal Wherein the contact portion slides from the first portion to the second portion in a state in which the contact portion is in contact with a contact surface of the second terminal, and the fixing portion is configured such that the contact portion is in the second state. At the receiving portion of the portable terminal device.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to prevent the contact pressure of the terminal of a portable terminal device and the terminal of a charger from falling, and to prevent poor contact.

FIG. 1 is a perspective view showing the overall configuration of the charging system according to the 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 portable terminal device according to the embodiment of the present invention is mounted on the charger. FIG. 3B is a side view showing a state where the portable terminal device according to the embodiment of the present invention is mounted on a charger. FIG. 4A is a side view showing a first state before the portable terminal device according to the embodiment of the present invention is mounted on a charger. FIG. 4B is a cross-sectional view showing a first state before the mobile terminal device according to the embodiment of the present invention is mounted on the charger. FIG. 4C is a cross-sectional view showing a first state before the portable terminal device according to the embodiment of the present invention is mounted on the charger. FIG. 4D is a cross-sectional view showing a first state before the portable terminal device according to the embodiment of the present invention is mounted on the charger. FIG. 4E is a cross-sectional view showing a first state before the portable terminal device according to the embodiment of the present invention is mounted on the charger. FIG. 5A is a side view showing a second state in which the portable terminal device according to the embodiment of the present invention is inserted and placed in a charger. FIG. 5B is a cross-sectional view illustrating a second state in which the mobile terminal device according to the embodiment of the present invention is inserted and placed in a charger. 5C is a cross-sectional view showing a second state of mounting plugged into charger portable terminal device according to an embodiment of the present invention. FIG. 5D is a cross-sectional view illustrating a second state in which the mobile terminal device according to the embodiment of the present invention is inserted and placed in a charger. 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 and placed in a charger. FIG. 6A is a side view showing a third state in which the mobile terminal device according to the embodiment of the present invention has been 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 has been 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 has been pushed into the charger. FIG. 6D is a sectional view showing a third state in which the mobile terminal device according to the embodiment of the present invention has been 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 has been 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 rearward with respect to the charger. FIG. 7B is a cross-sectional view illustrating a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted rearward with respect to the charger. FIG. 7C is a cross-sectional view illustrating a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted rearward with respect to the charger. FIG. 7D is a sectional view illustrating a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted rearward with respect to the charger. FIG. 7E is a cross-sectional view illustrating a fourth state in which the mobile terminal device according to the embodiment of the present invention is tilted rearward 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. FIG. 9A is a partially enlarged view of the third state shown in FIG. 6B. FIG. 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. Each of the following embodiments is an example that embodies the present invention, and does not have a property to limit 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) provided in a portable terminal device such as a handy terminal or a smartphone. A charging system according to the present invention includes the portable terminal device and the charger.

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

  The mobile terminal device 100 is, for example, a handy terminal used for product management and the like. The portable terminal device 100 is roughly composed of an upper portion 110, inclined portions 131 and 132, and a lower portion 120. A display 101 is provided on a front surface of the upper portion 110, and a numeric keypad 102 and a cursor key 103 are provided on a front surface of the lower portion 120. 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 at the boundaries of the inclined portions 131 and 132, and the user mainly uses the mobile terminal device 100 while holding the lower portion 120. When charging the mobile terminal device 100, the user attaches the mobile terminal device 100 to the charger 200. A terminal 151 (see FIG. 4B and the like) for charging the battery 140 (see FIG. 2A) is provided on the bottom 150 of the portable terminal device 100. Terminal 151 includes a plurality of contact portions 151P (see FIG. 5B, etc.). The 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 and 162 (concave portions) are provided on the back surface near the inclined portions 131 and 132 of the mobile terminal device 100, and a battery 140 is provided on the back surface of the lower portion 120. Is provided. Battery 140 is provided so as to protrude from the back surface of portable terminal device 100.

  The charger 200 is, for example, a cradle that charges a handy terminal (portable terminal device 100). The housing of the charger 200 is roughly composed of a rear part 210 and a front part 220. The rear part 210 is provided with a left side wall 231 and a right side wall 232 rising upward and a receiving part 240 formed between the left side wall 231 and the right side wall 232, and the front part 220 is provided with a left front wall rising upward. and 271 and right front wall 272, and the mounting portion 250 is provided which is formed between the left front wall 271 and the right front wall 272. The inner surface of the left side wall 231 is provided with a fixing portion 261 (convex portion) protruding in the D2 direction (corresponding to the second direction of the present invention), and the inner surface of the right side wall 232 is provided with a fixing portion 262 (convex portion) protruding in the D2 direction. (See FIG. 2B). The mounting portion 250 is provided with a terminal 251 having a plurality of contact portions 251P (terminal pins) (see FIG. 5B and the like) and a protruding portion 252 arranged near the terminal 251. For example, two protrusions 252 are provided on the left and right of the terminal 251. The terminal 251 is an example of a 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 is provided with a housing (not shown) 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). The mounting portion 250) is provided so as to protrude from the mounting portion 250). 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 be. 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, the D1 direction and the D2 direction are orthogonal to each other.

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

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

  Although not shown, the charger 200 is connected to an external power supply via a power cord including an AC / DC adapter, for example. When detecting that mobile terminal device 100 is attached to charger 200, charger 200 charges battery 140 of mobile terminal device 100 with an external power supply. The mobile terminal device 100 operates with a power supply 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 portable terminal device 100 is mounted on the charger 200, GND terminal, a power supply terminal (VDD pin), and the communication terminal is brought into contact with the contact portion 151P of the terminal 151 of the portable terminal device 100 in this order. When all the contact parts 251P come into contact with the contact parts 151P, charging is started.

  The charger 200 according to the present embodiment can be connected to the portable terminal device 100 even when a foreign substance or the like is attached to the contact portion 251P of the terminal 251 of the charger 200 and the contact portion 151P of the terminal 151 of the portable terminal device 100. It has a configuration that enables good electrical connection and prevents poor contact. Hereinafter, a specific connection method between the portable terminal device 100 and the charger 200 will be described. Schematically, after the portable terminal device 100 is inserted into the charger 200 in the D3 direction by the user (see FIG. 3A), the portable terminal device 100 is pushed in the D4 direction (inclination direction) (corresponding to the fourth direction of the present invention) ( The battery pack 200 is electrically connected to and fixed to the charger 200 (see FIG. 3B).

  Hereinafter, a series of operations from FIG. 3A to FIG. 3B, that is, a state before the portable terminal device 100 is attached to the charger 200 (see FIG. 3A), the portable terminal device 100 is attached to the charger 200. A series of changes in the state until the connection (fixed) state (see FIG. 3B) will be described in order with reference to FIGS.

  4 to 7, FIGS. 4A, 5A, 6A, and 7A show side views of the charging system 10, and FIGS. 4B, 5B, 6B, and 7B show terminals 151 and FIG. 4C, FIG. 5C, FIG. 6C, and FIG. 7C show a cross section of the charging system 10 when a portion including the terminal 251 is cut along a cutting line. FIG. 4D, FIG. 5D, FIG. 6D, and FIG. 7D are cross-sectional views of the charging system 10 when a portion including the protrusion 252 is cut along a cutting line. 5E, 6E, and 7E are cross-sectional views of the charging system 10 when a portion including the upper end portion 271T of the left front wall 271 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 the other (the right component) is omitted.

  4A to 4E show a first state before the portable terminal device 100 is inserted into the charger 200. As shown in FIG. 4B, the mounting portion 250 of the charger 200, terminal 251 is provided to the terminal 251 can advance and retreat from the mounting portion 250 in a state where the biasing force F1 is applied to the direction D1 Are provided with a plurality of contact portions 251P provided so as to protrude therefrom. In the first state, contact portion 151P of terminal 151 of portable terminal device 100 and contact portion 251P of terminal 251 of charger 200 are in a non-contact state.

  Further, as shown in FIG. 4D, the mounting portion 250 of the charger 200 is configured to protrude from the mounting portion 250 in a state where the urging force F2 is applied in the direction D1 by the spring 252S (biasing member). Are provided. In the first state, the bottom 150 of the mobile terminal device 100 and the protrusion 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. It is located above the upper end of the part 251P. In the first state, as shown in FIG. 4C, fixing portion 261 of charger 200 is not received by receiving portion 161.

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

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

  6A to 6E show a third state in which the portable 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 and pushes the mobile terminal device 100 downward. When the user pushes the portable terminal device 100 in the direction D3 against the urging force F2 with a force greater than the urging force F2 (see FIG. 5D) applied to the protrusion 252, as shown in FIG. Recedes into the mounting portion 250 while receiving the urging force F2 in the D1 direction. When mobile terminal device 100 is pushed downward, contact portion 151P of terminal 151 of mobile terminal device 100 and contact portion 251P of terminal 251 of charger 200 come into contact, as shown in FIG. 6B.

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

  Also, as shown in FIG. 6E, the lower portion 120 of the mobile terminal device 100 is received inside along the left front wall 271 and the right front wall 272. In the third state, as shown in FIG. 6C, when viewed from the display surface side of the portable terminal device 100, the position of the fixing portion 261 and the position of the receiving portion 161 substantially match, and the portable terminal device 100 is When pressed into the receiving portion 161, the fixing portion 261 is received (fitted) into 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 his / her hand from the portable terminal device 100, the portable terminal device 100 is pushed upward by the urging force F2 in the D1 direction applied to the protruding portion 252, and the contact portions 151P and 251P. Returns to the non-contact state (the above-described second state). The third state is an example of the first state of the present invention.

  7A to 7E show a fourth state in which the portable terminal device 100 is tilted with respect to the charger 200 in the D4 direction from the third state. That is, the fourth state indicates a state in which the user releases the hand from the mobile terminal device 100 after pressing the mobile terminal device 100 to the back side by applying a force in the D4 direction from the third state. When the user pushes the portable terminal device 100 in the D4 direction, as shown in FIG. 7E, the upper portion 110 of the portable 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 portion 120 Rotates in the direction D5 (corresponding to the fifth direction of the present invention). The front surface of the lower part 120 of the mobile terminal device 100 contacts the inner surface 221 of the left front wall 271.

  Thereby, as shown in FIG. 7C, the fixing portion 261 is received (fitted) into the receiving portion 161. Although details will be described later, as shown in FIG. 7B, the contact portion 251P contacts the second portion S2 of the contact surface of the contact portion 151P. That is, the contact portion 251P moves (slids) 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, when the state changes from the third state to the fourth state, the upper part 110 of the mobile terminal device 100 moves in the D4 direction with the upper end part 271T of the left front wall 271 as a fulcrum, so that the fixing part 261 becomes the receiving part 161. The contact portion 251P is slid from the first portion S1 to the second portion S2 as the bottom portion 150 of the portable terminal device 100 is received and is moved in the direction D5 with the upper end portion 271T of the left front wall 271 as a fulcrum.

  When the user releases his / her hand from the portable terminal device 100, as shown in FIG. 7D, a force corresponding to the urging force F2 is applied to the bottom 150 of the portable terminal device 100 in the direction D1 from the protrusion 252, and 100 is lifted in the D1 direction. The protrusion 252 applies a force to the bottom 150 of the portable terminal device 100 in accordance with the urging force F2. The force in the D1 direction applied to the portable terminal device 100 acts on the contact portion 161A between the fixing portion 261 and the receiving portion 161 as a stress F3 in the D6 direction, as shown in FIG. 7C. A reaction force F4 in the D7 direction against the stress F3 acts on the contact portion 161A. The upward movement (direction D1) of the portable terminal device 100 is restricted by the stress F3 and the reaction force F4, and the portable terminal device 100 is fixed to the charger 200.

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

  Through the above series of operations, the portable terminal device 100 is mounted on the charger 200 and charged. Next, details of the operation when the contact portion 151P of the portable 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 a third state, and FIG. 8B is an enlarged view of FIG. 7E showing a fourth state. FIG. 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 contacts 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 from the contact portion 251P to the first portion S1 of the contact portion 151P. Therefore, the contact portion 251P is pressed against the first portion S1.

  As shown in FIG. 8A and FIG. 8B, when the user pushes (falls) the portable terminal device 100 in the D4 direction, the portable terminal device 100 is moved around the contact portion T1 between the upper end 271T of the left front wall 271 and the portable terminal device 100 as a fulcrum. The upper part 110 of the terminal device 100 rotates in the direction D4, and the lower part 120 rotates in the direction D5. Then, the front surface of the lower portion 120 of the mobile terminal device 100 contacts the inner surface 221 of the left front wall 271. As described above, when changing from the third state to the fourth state, the upper portion 110 of the mobile terminal device 100 moves by a predetermined distance in the D4 direction, and the lower portion 120 of the mobile terminal device 100 moves by the predetermined distance in the D5 direction. to.

  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 (slids) 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 located at the center of the contact surface of the contact portion 151P.

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

  According to the above operation, each time the portable terminal device 100 is mounted on the charger 200, the contact portion 251P of the charger 200 slides on the contact portion 151P of the portable terminal device 100. Also, when the mobile terminal device 100 is detached from the charger 200 after charging is completed, the contact portion 251P slides on the contact portion 151P. As a result, foreign matter attached to the contact portions 151P, 251P is removed. Therefore, it is possible to prevent a contact failure due to a foreign substance adhering to the terminals 151 and 251 of the portable 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 an extension of the direction in which the mobile terminal device 100 is inserted into the charger 200 (D3 direction). In addition, the urging force F1 is applied to the contact portion 251P of the terminal 251 in the direction (D1 direction) opposite to the D3 direction. For this reason, the contact pressure between the contact portions 151P and 251P can be increased as compared with a configuration in which the contact portion is pressed from the side surface of the portable terminal device. Therefore, it is possible to prevent poor contact due to the contact pressure between the terminals.

  In addition, 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 is first placed on the bottom 150 of the mobile terminal device 100. Because of the contact (see FIG. 5D), the contact portion 251P of the charger 200 and the contact portion 151P of the portable terminal device 100 can be prevented from violently colliding. Normally, the contact portions 151P and 251P are subjected to a gold-plated surface treatment in order to reduce the electric resistance between the contacts, and if the collision between the contact portions is strong, the gold plating may come off. In this regard, according to the above configuration of the charging system 10 according to the present embodiment, since the surfaces of the contact portions 151P and 251P can be protected, the above problem can be solved.

  In addition, in the charger 200 according to the present embodiment, since the charging is performed at the bottom 150 of the mobile terminal device 100, the configuration of the charger 200 is simplified and reduced in size compared to the configuration where charging is performed on the side surface of the mobile terminal device. Can be

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

10: Charging system 100: Mobile terminal device 110: Upper part 120: Lower part 150: Bottom part 151: Terminal 151P: Contact part 161: Receptive part 161A: Contact part 162: Receptive part 200: Charger 210: Rear part 220: Front part 231: Left side wall 232: Right side wall 240: Receiving part 250: Placement part 251: Terminal 251P: Contact part 252: Projecting part 252S: Spring 261: Fixed part 262: Fixed part 271: Left front wall 271T: Upper end part 272: Right front Wall F1: urging force F2: urging force F3: stress F4: reaction force M1: gap M2: gap S1: first part S2: second part T1: contact part

Claims (6)

A charger for charging the mobile terminal device,
A first terminal including a contact portion that protrudes from the housing of the charger so as to be able to advance and retreat in a state where the first urging force is applied in a first direction;
A fixing portion projecting from a casing of the charger in a second direction different from the first direction;
With
The contact portion contacts the first portion of the contact surface of the second terminal of the portable terminal device when the portable terminal device is pushed into the charger in a third direction opposite to the first direction. A second state in which the mobile terminal device is pushed into the charger in a fourth direction opposite to the second direction after the contact portion contacts the first portion. A second state of contacting a second portion of the contact surface of
The contact portion slides from the first portion to the second portion in a state of being in contact with a contact surface of the second terminal,
The fixing portion is received by the receiving portion of the portable terminal device when the contact portion is in the second state,
Charger. The battery further includes a protruding portion that protrudes from the housing of the charger so as to be able to advance and retreat in a state where the second urging force is applied in the first direction,
When the portable terminal device is placed on the charger, the bottom of the portable terminal device is supported by the protrusion, so that a gap is formed between the contact portion and the second terminal,
When the portable terminal device is pushed into the charger in the third direction with a force greater than the second urging force after the gap is formed, the contact portion enters 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 a bottom portion of the portable terminal device.
The charger according to claim 2. When the contact portion is in the second state, the portable portion is actuated by a stress acting on a contact portion where the fixing portion and the receiving portion are in contact with each other and according to the second urging force and a reaction force to the stress. Fixing a terminal device to the charger,
The charger according to claim 2 or 3. The housing includes a front wall disposed on a front side of the mobile terminal device,
When the contact portion changes from the first state to the second state, the upper portion of the portable terminal device moves in the fourth direction with the upper end of the front wall as a fulcrum, whereby the fixing portion is The contact portion is received by the receiving portion, and the contact portion is moved to the first portion by moving the bottom portion of the portable terminal device in a fifth direction opposite to the fourth direction with the upper end portion of the front wall serving as a fulcrum. Slides into the second part from
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,
A first terminal including a contact portion that protrudes from a housing of the charger in a state where a first urging force is applied in a first direction;
A fixing portion protruding from a housing of the charger in a second direction different from the first direction,
The portable terminal device includes a second terminal on a bottom portion,
A first state of contacting the first portion of the contact surface of the second terminal when the portable terminal device is pushed into the charger in a third direction opposite to the first direction; And when the portable terminal device is pushed into the charger in a fourth direction opposite to the second direction after the contact portion contacts the first portion, the contact surface of the second terminal A second state in contact with the second portion;
The contact portion slides from the first portion to the second portion in a state of being in contact with a contact surface of the second terminal;
The fixing portion is received by the receiving portion of the portable terminal device when the contact portion is in the second state,
Charging system.