JP2015077037A - Charging table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charging table that is able to absorb variations in the dimensions of a power supply/charging terminal of a cantilever spring type and is able to normally electrically connect to an electronic apparatus.SOLUTION: A charging table comprises: a housing 10; a circuit board 20; and a power supply/charging terminal 30 of a cantilever spring type. The power supply/charging terminal 30 includes a fixing part 31, a contact part 32, and a coil part 33. The housing 10 includes a boxing part 17, as a coil holding part, holding at least the outside diameter or inside diameter of the power supply/charging terminal 30. A terminal receiving hole 22e in the shape of a long hole is formed in the circuit board 20 such that the power supplying/charging terminal 30, temporarily fastened to the housing 10 by the coil part 33 held by the box part 17, is fixed to the circuit board 20, or the circuit board 20, to which the power supply/charging terminal 30 temporarily fastened to the housing 10 is fixed, is fixed, while displacement of the fixed position is permitted, thereby absorbing variations in dimensions of the power supply/charging terminal 30.

Description

  The present invention relates to a charging stand that is a device that removably receives a portable or portable electronic device such as a smartphone, an information processing tablet, or a mobile phone, and that feeds or charges the received electronic device.

  This type of charging stand, also called a charging holder or cradle, has a housing that removably receives (supports) an electronic device, and a circuit board that is built in the housing and on which a power feeding / charging circuit is mounted. . The power supply to the power supply / charging circuit in the charging stand is made from a power circuit built in the housing, or an AC adapter, a DC adapter, or a personal computer prepared separately from the charging stand. It is made via a connector from a USB (Universal Serial Bus) cable or the like connected to.

  This type of charging base further includes a power feeding / charging terminal that contacts a power feeding / charging contact provided in the electronic device when the housing receives the electronic device, except for a non-contact type charging base. The power supply / charging terminal contacts the power supply / charge contact of the electronic device received in the housing, so that the power supply / charge circuit of the charging stand and the power-supplied / charge circuit of the electronic device are electrically connected and charged. Electric power is supplied and charged from the stand to the electronic device.

  Here, there is a cantilever spring type power supply / charge terminal as one form of the power supply / charge terminal of the charging stand. The cantilever spring type power supply / charge terminal has a simple structure as compared with other terminal forms such as a probe type with a coil spring, and is often used for this type of charging stand.

  The cantilever spring type power supply / charge terminal is formed by bending an elastic metal wire, fixed to the circuit board on which the power supply / charge circuit is formed, and electrically connected to the power supply / charge circuit. And a contact portion formed on the free end side of the cantilever spring and capable of contacting a power supply / charging contact of the electronic device. Furthermore, in many cases, the cantilever spring type power supply / charge terminal is provided between the fixed part and the contact part in order to optimize the contact force to the power supply / charge contact of the electronic device by extending the spring length. A coil portion formed is further provided.

  A charging stand having a cantilever spring type power feeding / charging terminal is disclosed in Patent Document 1, for example. In the charging stand disclosed in Patent Document 1, the cantilever spring type power feeding / charging terminal includes a coil portion between the fixed portion (the other end portion) and the contact portion, and the coil portion is formed in a cylindrical shape. Is inserted into and held by the main shaft through a spacer. In other words, the main shaft holds the inner diameter (inner circumference) of the coil portion via the spacer.

  Patent Document 2 discloses a spring provided with arm portions at both ends and a coil portion provided between both arm portions, but not as a power feeding / charging terminal but only as a structural component of the tape cassette. Has been. In the tape cassette disclosed in Patent Document 2, the coil portion of the spring is inserted into a well portion formed in the lower half as a component of the cassette casing, and is also the upper portion as a component of the cassette casing. It is held by being pressed down by the half. In other words, the well portion and the upper half of the lower half hold the outer diameter (outer periphery) of the coil portion.

JP 2013-017376 A Japanese Patent Laid-Open No. 08-007523

  A cantilever spring formed by bending an elastic wire including the power supply / charging terminal as described above may vary in size in individual products when mass-produced. In particular, a spring provided with a coil portion to extend the spring length tends to have large dimensional variations.

On the other hand, in a cantilever spring type power supply / charge terminal, generally, as shown in FIG. 6A, a fixing portion 31 is fixed to a circuit board (not shown), and the circuit board is a housing. Since this is fixed to (not shown), the fixing portion 31 serves as a position reference for the power feeding / charging terminal. In this case, if there is variation in the dimensions of the cantilever spring type power supply / charge terminal as described above, the position (distance from the reference point) of the contact point 32 that is the point of application to the contact target (power supply / charge contact of the electronic device). S) will also vary (tolerance T _S ). As a result, when the charging stand is used, the power feeding / charging terminal 30 does not properly contact the power feeding / charging contact of the electronic device received in the housing, and the electrical connection is not normally performed. In particular, along with the recent thinning of electronic devices, the size of the power supply / charging contact as a contact object has become narrower, and normal contact cannot be made even with a slight misalignment of the contact portion.

  For this reason, there is a demand for a charging stand that can absorb variations in the dimensions of the cantilever spring type power supply / charging terminal and can be normally electrically connected to the electronic device.

  Note that the power supply / charge terminal disclosed in Patent Document 1 is different from that shown in FIG. 6A in that the inner diameter of the coil portion is held by a shaft, and this coil portion serves as a position reference. There may be. However, as is clear from FIG. 2 of Patent Document 1, the periphery of the power supply / charging terminal has a very complicated structure, and Patent Document 1 describes the dimensions of a cantilever spring-type power supply / charging terminal. Not only that the variation should be absorbed, but also the variation itself of the dimensions of the cantilever spring-type power supply / charge terminal formed by bending and further including the coil portion is not mentioned at all.

  Further, unlike the spring shown in FIG. 6 (a), the spring disclosed in Patent Document 2 holds the outer diameter of the coil portion, and this coil portion may serve as a position reference. . However, the spring of Patent Document 2 is a structural component of the tape cassette that is irrelevant to the electrical connection, and Patent Document 2 is formed by bending and further has a dimension of a spring having a coil portion. There is no mention of the variations themselves.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a charging stand that can absorb the variation in the dimensions of the cantilever spring type power supply / charging terminal and can be normally electrically connected to the electronic device. .

  According to the present invention, a charging stand that removably receives an electronic device and supplies power to or charges the received electronic device, and includes a housing that removably receives the electronic device, and a power supply / charging circuit. A circuit board that is formed and fixed within the housing, and when the housing receives the electronic device, the power supply / charging contact provided on the electronic device is contacted to thereby supply power to the electronic device. -A cantilever spring type power feeding / charging terminal that electrically connects the charging circuit and the power feeding / charging circuit of the circuit board, and the power feeding / charging terminal is formed by bending a metal wire having elasticity. It is fixed to the circuit board and electrically connected to the power supply / charging circuit, and is formed on the free end side of the cantilever spring so that it can contact the power supply / charge contact of the electronic device. Contact point and the power feeding / charging end A coil portion formed between the fixed portion and the contact portion to extend a spring length of the power supply, and the housing has at least one of an outer diameter and an inner diameter of the coil portion of the power feeding / charging terminal. A coil holding portion for holding, and fixing the power supply / charging terminal temporarily fixed to the housing by holding the coil portion to the coil holding portion to the circuit board; The circuit board, to which the stopped power supply / charge terminal is fixed, is fixed to the housing while allowing the displacement of the fixed position to absorb the dimensional variation of the power supply / charge terminal. The charging stand characterized by being comprised in this is obtained.

  The coil holding portion receives the coil portion of the power feeding / charging terminal to receive the coil portion and holds the outer diameter of the coil portion, or passes through the coil portion of the power feeding / charging terminal. The shaft part which hold | maintains the said internal diameter of a coil part may be sufficient. When the coil holding part is the box part, the box part may include a claw for holding the inner diameter of the coil part so that the received power supply / charging terminal does not come out of the box part.

  The circuit board includes a terminal receiving hole for receiving the fixing portion of the power feeding / charging terminal, and the terminal receiving hole is a line connecting the fixing portion of the power feeding / charging terminal and the contact portion. And the fixing portion of the power feeding / charging terminal temporarily fixed to the housing after the circuit board is fixed to the housing. By inserting and soldering into the terminal receiving hole of the circuit board, the power feeding / charging terminal is fixed to the circuit board while allowing the fixing portion to be displaced from the terminal receiving hole. May be.

  Alternatively, the circuit board includes a screwing hole through which a screw for screwing the circuit board to the housing is inserted, and the screwing hole is connected to the fixing portion and the contact point of the power supply / charging terminal. After the fixing portion of the power supply / charging terminal temporarily fixed to the casing is fixed to the circuit board, the elongated shape is formed in a direction along a line connecting the portions. The circuit board integrated with the power feeding / charging terminal is screwed to the casing through the screw holes, so that the circuit board is displaced from the casing with respect to the power feeding / charging terminal. It may be fixed to the housing while allowing.

  Alternatively, the housing includes a claw portion that holds the circuit board while allowing movement in a direction along a line connecting the fixing portion and the contact portion of the power supply / charging terminal, After the fixing part of the power supply / charging terminal temporarily fixed to the casing is fixed to the circuit board, the circuit board integrated with the power supply / charging terminal is held by the claw part of the casing By doing so, the circuit board may be fixed to the housing while allowing the power supply / charging terminal to be displaced relative to the housing.

  The charging stand according to the present invention can absorb variations in the dimensions of the cantilever spring type power supply / charging terminal, and can be normally electrically connected to the electronic device.

It is a disassembled perspective view which shows the charging stand which concerns on Example 1 of this invention. It is a figure which shows the principal part of the charging stand shown by FIG. 1, (a) is sectional drawing along the cutting line 2A-2A in FIG.2 (b), (b) is the top view seen from the bottom face side, FIG. 2C is a cross-sectional view taken along a cutting line 2C-2C in FIG. (A)-(c) is process drawing for demonstrating the assembly method of the charging stand shown by FIG. It is a disassembled perspective view which shows the charging stand which concerns on Example 2 of this invention. It is a disassembled perspective view which shows the charging stand which concerns on Example 3 of this invention. It is a figure which shows the relationship between the position reference | standard of a cantilever spring type electric power feeding / charging terminal, and a dimension variation, (a) shows the position reference and dimension variation in related technology, (b) The position reference and dimension variation in this invention are shown. Show.

  A charging stand according to the present invention is a charging stand that removably receives a portable or portable electronic device such as a smartphone, and supplies power to or charges the received electronic device. It has a circuit board on which a circuit is formed and a cantilever spring type power supply / charge terminal.

  The housing removably receives the electronic device. The circuit board is fixed in the housing. The power supply / charge terminal contacts the power supply / charge contact provided on the electronic device when the housing receives the electronic device, so that the power supply / charge circuit of the electronic device and the power supply / charge circuit of the circuit board Are electrically connected.

  The power feeding / charging terminal is formed by bending a metal wire having elasticity, and includes a fixed portion, a contact portion, and a coil portion. The fixing portion is fixed to the circuit board and electrically connected to the power feeding / charging circuit. The contact portion is formed on the free end side of the cantilever spring, and can contact the power supply / charge contact of the electronic device. The coil portion is formed between the fixed portion and the contact portion so as to extend the spring length of the power feeding / charging terminal.

  In particular, in the present charging stand, the housing includes a coil holding portion that holds at least one of the outer diameter and the inner diameter of the coil portion of the power feeding / charging terminal.

  In addition, the charging stand is configured such that the power supply / charging terminal temporarily fixed to the housing is fixed to the circuit board by the coil portion being held by the coil holding portion, or the power supply / charging terminal temporarily fixed to the housing. The circuit board to which the battery is fixed is fixed to the housing while allowing the displacement of the fixing position to absorb the dimensional variation of the power feeding / charging terminal.

As shown in FIG. 6 (b), the power feeding / charging terminal 30 in the present charging stand has a coil portion 33 held by a coil holding portion of a housing (not shown). It becomes the position reference of the charging terminal. In this case, even if there is variation in the dimensions of the cantilever spring type power supply / charge terminal, the position of the contact portion 32 (distance s1 from the reference point) that is the point of application to the contact target (power supply / charge contact of electronic device) ) Also varies (tolerance T _s1 ). Further, the position of the fixed portion 31 (distance s2 from the reference point) also varies (tolerance T _s2 ). Here, the position of the contact portion 32 (distance s1 from the reference point) also varies (tolerance T _s1 ) according to the position (reference point) of the contact portion 32 of the power feeding / charging terminal 30 according to the related technique shown in FIG. To the distance S) is smaller than the tolerance (tolerance T _S ). Therefore, compared to the related art, when using the charging stand, there is a possibility that the power supply / charging terminal 30 does not properly contact the power supply / charging contact of the electronic device received in the housing and the electrical connection may not be normally performed. Reduced. This is significant even when the size of the power feeding / charging contact as a contact object is narrowed with the recent thinning of electronic devices.

6B, unlike the related art shown in FIG. 6A, the position (distance s2 from the reference point) of the fixed portion 31 varies (tolerance T _s2 However, the variation is smaller than the variation (tolerance T _S ) of the related technology shown in FIG. 6A, and in addition, the circuit board of the power feeding / charging terminal 30 temporarily fixed to the housing. By fixing the circuit board to which the power supply / charging terminal 30 temporarily fixed to the casing (not shown) is fixed to the casing while allowing the displacement of the fixing position. The variation (tolerance T _s2 ) of the position of the fixed portion 31 (distance s2 from the reference point) is absorbed.

  With the above configuration, the charging stand according to the present invention has a coil portion at the power feeding / charging terminal and a relatively long spring length. However, the variation is small compared to the related art shown in FIG. Variations in the dimensions of power supply and charging terminals can be absorbed, and electrical connection with electronic devices can be made normally.

  Further, the power supply / charge terminal can be temporarily fixed to the housing by the coil holding portion, and can be easily assembled without preparing and using a jig.

  Therefore, the power supply / charge terminal can be fixed to the substrate without using the power supply / charge terminal fixing parts and jigs, so that the parts cost, the number of assembly steps, and the jig creation cost can be reduced.

  Hereinafter, a more specific embodiment of the charging stand according to the present invention will be described with reference to the drawings.

  Referring to FIGS. 1 and 2, the charging stand according to the first embodiment of the present invention removably receives a portable or portable electronic device (not shown) such as a smartphone, and the received electronic device. A charging base for supplying power and charging, a housing 10, a circuit board 20 on which a power supply / charge circuit (not shown) is formed, and two cantilever spring-type power supplies as a positive electrode and a negative electrode And a charging terminal 30. For convenience of explanation, a connector for supplying power to the power supply / charging circuit in the charging stand from the outside, a bottom cover that covers the bottom surface of the housing 10, screws used for screwing points to be described later, are illustrated. Omitted.

  The housing 10 removably receives an electronic device. The circuit board 20 is fixed in the housing 10. Although not shown in the circuit board 20, the electronic components constituting the power feeding / charging circuit are mounted on the upper side surface in FIG. 1. On the other hand, the lower side surface of the circuit board 20 in FIG. 1 is flat, and an insulating layer or an insulating film is provided in a region of the lower side surface that contacts or faces at least the power feeding / charging terminal 30.

  The power supply / charge terminal 30 contacts the power supply / charge contact provided in the electronic device when the housing 10 receives the electronic device, thereby supplying power to the power supply / charge circuit of the electronic device and the circuit board 20. Connect the charging circuit electrically.

  The power supply / charge terminal 30 is formed by bending a metal wire having elasticity, and includes a fixed portion 31, a contact portion 32, and a coil portion 33. The fixing portion 31 is fixed to the circuit board 20 and is electrically connected to the power feeding / charging circuit. The contact portion 32 is formed on the free end side of the cantilever spring, and can contact the power supply / charge contact of the electronic device. The coil portion 33 is formed between the fixed portion 31 and the contact portion 32 so as to extend the spring length of the power feeding / charging terminal.

  Now, in the present charging stand, the housing 10 includes a coil holding portion that holds the outer diameter (outer periphery) or inner diameter (inner periphery) of the coil portion 33 of the power feeding / charging terminal 30. In addition to functioning as a position reference for the power supply / charging terminal of the main charging base, the coil holding unit also functions as a temporary fixing means for the power supply / charging terminal during the assembly process of the main charging base.

  More specifically, in the present embodiment, the housing 10 includes a box portion 17 that holds the outer diameter of the coil portion 33 of the power feeding / charging terminal 30 as a coil holding portion. Further, the box portion 17 includes a claw 17c that holds the inner diameter of the coil portion 33 so that the received power supply / charge terminal 30 (the coil portion 33 thereof) does not come out of the box portion 17 even during temporary fixing. (FIG. 2 (a), (c)).

  Further, in the present charging stand, the fixing of the power feeding / charging terminal 30 temporarily fixed to the housing 10 by holding the coil portion 33 to the box portion 17 to the circuit board 20 allows a deviation of the fixing position. By doing so, it is configured to absorb the dimensional variation of the power feeding / charging terminal 30.

  More specifically, in the present embodiment, the circuit board 20 is configured to absorb the dimensional variation of the power feeding / charging terminal 30 and has a terminal receiving hole 22e for receiving the fixing portion 31 of the power feeding / charging terminal 30 (FIG. 1). It has. The terminal receiving hole 22 e has a long hole shape that is expanded in the direction A along the line segment that connects the fixing portion 31 and the contact portion 32 of the power feeding / charging terminal 30. Although not shown, a conductor land for soldering the fixing portion 31 of the power supply / charging terminal 30 is formed around the terminal receiving hole 22e, and this conductor land is formed on the circuit board 20. It is electrically connected to the formed power feeding / charging circuit.

  Thereby, after the circuit board 20 is screwed and fixed to the four bosses 16 of the casing 10 (screws are not shown), the fixing portion 31 of the power supply / charging terminal 30 temporarily fixed to the casing 10 is By inserting and soldering into the long hole-shaped terminal receiving hole 22e, the power feeding / charging terminal 30 is fixed to the circuit board 20 while allowing the fixing portion 31 to be displaced from the terminal receiving hole 22e.

  Next, the main points of the method of assembling the charging stand will be described with reference to FIGS. 1 and 2 together with FIGS.

  As shown in FIG. 3A, the coil portions 33 of the two power feeding / charging terminals 30 (only one is shown) are inserted into the box portion 17 of the housing 10.

  When the coil portion 33 is inserted into the box portion 17 of the housing 10, the outer diameter of the coil portion 33 is held by the inner wall surface of the box portion 17 as shown in FIG. Is maintained by the claw 17c, and the state where the power feeding / charging terminal 30 is temporarily fixed to the housing 10 is maintained. The power supply / charging terminal 30 temporarily fixed has a free end of the cantilever spring abutting against a seat portion 14 formed on the inner surface of the housing 10 with a predetermined bias pressure, and a contact portion 32 having a housing portion. It protrudes to the outside of the housing 10 through a slit 13 formed in the body 10.

  Next, as shown in FIG. 3C, the circuit board 20 uses screws (not shown) for the four bosses 16 (only one is shown) of the housing 10 via the screw holes 21 (FIG. 1). Screwed. Thereafter, the fixing portion 31 of the power supply / charging terminal 30 temporarily fixed to the housing 10 is inserted and soldered into the long hole-shaped terminal receiving hole 22e, whereby the power supply / charging terminal 30 is fixed to the fixing portion 31. The terminal is fixed to the circuit board 20 while allowing a positional deviation of the terminal receiving hole 22e.

  Thereafter, the assembly of the charging base is completed through a process of attaching a bottom panel (not shown) to the housing 10.

  The charging stand according to the second embodiment of the present invention is different from the first embodiment in the configuration that absorbs the dimensional variation of the power feeding / charging terminal. For this reason, about the part which is the same as that of Example 1, or the part similar to Example 1, it shall use the description and drawing in Example 1, and detailed description is abbreviate | omitted.

  Referring to FIG. 4, the charging stand according to the second embodiment of the present invention is similar to the first embodiment in the case 10, a circuit board 20 ′ on which a power feeding / charging circuit (not shown) is formed, and a positive electrode. And two cantilever spring type power feeding / charging terminals 30 as negative electrodes. For convenience of explanation, a connector for supplying power to the power supply / charging circuit in the charging stand from the outside, a bottom cover that covers the bottom surface of the housing 10, screws used for screwing points to be described later, are illustrated. Omitted.

  The housing 10 removably receives an electronic device. Further, the circuit board 20 ′ is fixed in the housing 10. Although not shown in the circuit board 20 ′, the electronic components constituting the power feeding / charging circuit are mounted on the upper side surface in FIG. 4. On the other hand, the lower side surface of the circuit board 20 ′ in FIG. 4 is flat, and an insulating layer or an insulating film is provided in a region of the lower side surface that contacts or faces at least the power supply / charge terminal 30.

  When the housing 10 receives an electronic device, the power supply / charge terminal 30 contacts a power supply / charge contact provided in the electronic device, thereby supplying power to the power-supplied / charge circuit of the electronic device and the circuit board 20 ′. • Electrically connect the charging circuit.

  The power supply / charge terminal 30 is formed by bending a metal wire having elasticity, and includes a fixed portion 31, a contact portion 32, and a coil portion 33. The fixing portion 31 is fixed to the circuit board 20 ′ and is electrically connected to the power feeding / charging circuit. The contact portion 32 is formed on the free end side of the cantilever spring, and can contact the power supply / charge contact of the electronic device. The coil portion 33 is formed between the fixed portion 31 and the contact portion 32 so as to extend the spring length of the power feeding / charging terminal.

  Also in this charging stand, the housing 10 includes a coil holding portion that holds the outer diameter (outer circumference) or inner diameter (inner circumference) of the coil portion 33 of the power feeding / charging terminal 30. In addition to functioning as a position reference for the power supply / charging terminal of the main charging base, the coil holding unit also functions as a temporary fixing means for the power supply / charging terminal during the assembly process of the main charging base.

  More specifically, in the present embodiment, the housing 10 includes a box portion 17 that holds the outer diameter of the coil portion 33 of the power feeding / charging terminal 30 as a coil holding portion. Further, the box portion 17 includes a claw (not shown) for holding the inner diameter of the coil portion 33 so that the received power supply / charge terminal 30 (the coil portion 33 thereof) does not come out of the box portion 17 even during temporary fixing. It has.

  Furthermore, the fixing of the circuit board 20 ′ to which the power supply / charging terminal 30 temporarily fixed to the housing 10 by the coil portion 33 being held by the box portion 17 is fixed to the housing 10 is shifted from the fixing position. This is configured to absorb the dimensional variation of the power feeding / charging terminal 30 by allowing the above.

  More specifically, in this embodiment, the circuit board 20 ′ is configured to absorb the dimensional variation of the power feeding / charging terminal 30, and a screw (not shown) for screwing the circuit board 20 ′ to the housing 10. ) Are inserted through four screw holes 21e. The screwing hole 21 e has a long hole shape that is enlarged in a direction A along a line segment that connects the fixing portion 31 and the contact portion 32 of the power supply / charging terminal 30.

  As a result, the fixing portion 31 of the power supply / charging terminal 30 temporarily fixed to the housing 10 is inserted into the terminal receiving hole 22 of the circuit board 20 ′, and the conductor land (not shown) formed around the terminal receiving hole 22e. After being fixed by soldering, the circuit board 20 ′ integrated with the power supply / charging terminal 30 is fixed to the four bosses 16 of the housing 10 with screws through the screw holes 21e. Accordingly, the circuit board 20 ′ is fixed to the housing 10 while allowing the displacement of the power supply / charging terminal 30 with respect to the housing 10.

  Next, the main points of the method of assembling the charging stand will be described with reference to FIG.

  First, the coil portions 33 of the two power feeding / charging terminals 30 are inserted into the box portion 17 of the housing 10.

  When the coil part 33 is inserted into the box part 17 of the housing 10, the outer diameter of the coil part 33 is held by the inner wall surface of the box part 17 and the inner diameter of the coil part 33 is held by a claw (not shown). Thus, the state where the power feeding / charging terminal 30 is temporarily fixed to the housing 10 is maintained. The power supply / charging terminal 30 temporarily fixed has a free end of the cantilever spring abutting against a seat portion 14 formed on the inner surface of the housing 10 with a predetermined bias pressure, and a contact portion 32 having a housing portion. It protrudes to the outside of the housing 10 through a slit 13 formed in the body 10.

  Next, the fixing portion 31 of the power supply / charging terminal 30 temporarily fixed to the housing 10 is fixed by being inserted and soldered into the terminal receiving hole 22 of the circuit board 20 ′. Thereafter, the circuit board 20 ′ integrated with the power supply / charging terminal 30 is screwed and fixed to the four bosses 16 of the housing 10 through the screw holes 21e, whereby the circuit board 20 ′ is The power supply / charging terminal 30 is fixed to the housing 10 while allowing a positional shift with respect to the housing 10.

  Thereafter, the assembly of the charging base is completed through a process of attaching a bottom panel (not shown) to the housing 10.

  The charging stand according to the third embodiment of the present invention is different from the first and second embodiments in the structure of the coil holding portion that holds the coil portion of the power feeding / charging terminal provided in the housing. For this reason, about the part which is the same as or similar to the first and second embodiments, the description and drawings in the first and second embodiments are used, and the detailed description is omitted.

  Referring to FIG. 5, the charging stand according to the third embodiment of the present invention includes a housing 10 ′, a circuit board 20 on which a power feeding / charging circuit (not shown) is formed, as in the first and second embodiments. And two cantilever spring type power supply / charge terminals 30 as a positive electrode and a negative electrode. For convenience of explanation, a connector for supplying power to the power supply / charging circuit in the charging stand from the outside, a bottom cover that covers the bottom surface of the housing 10 ', and a screw that is used for a screwing position to be described later are illustrated. Is omitted.

  The housing 10 ′ removably receives an electronic device. The circuit board 20 is fixed in the housing 10 '. Although not shown in the circuit board 20, the electronic components constituting the power feeding / charging circuit are mounted on the upper side surface in FIG. 5. On the other hand, in FIG. 5, the lower side surface of the circuit board 20 is flat, and an insulating layer or an insulating film is provided in a region of the lower side surface that contacts or faces at least the power feeding / charging terminal 30.

  The power supply / charge terminal 30 contacts the power supply / charge contact provided in the electronic device when the housing 10 ′ receives the electronic device, thereby supplying power to the power supply / charge circuit of the electronic device and the circuit board 20. • Electrically connect the charging circuit.

  The power supply / charge terminal 30 is formed by bending a metal wire having elasticity, and includes a fixed portion 31, a contact portion 32, and a coil portion 33. The fixing portion 31 is fixed to the circuit board 20 and is electrically connected to the power feeding / charging circuit. The contact portion 32 is formed on the free end side of the cantilever spring, and can contact the power supply / charge contact of the electronic device. The coil portion 33 is formed between the fixed portion 31 and the contact portion 32 so as to extend the spring length of the power feeding / charging terminal.

  Also in this charging stand, the casing 10 ′ includes a coil holding portion that holds the outer diameter (outer periphery) or inner diameter (inner periphery) of the coil portion 33 of the power feeding / charging terminal 30. In addition to functioning as a position reference for the power supply / charging terminal of the main charging base, the coil holding unit also functions as a temporary fixing means for the power supply / charging terminal during the assembly process of the main charging base.

  More specifically, in the present embodiment, the housing 10 ′ includes a shaft portion 19 that holds the inner diameter of the coil portion 33 of the power feeding / charging terminal 30 as a coil holding portion.

  Although not shown in the drawings, the shaft portion of the power supply / charge terminal 30 is prevented so that the power supply / charge terminal 30 (the coil portion 33) inserted through the shaft portion 19 does not come out of the shaft portion 19 even when temporarily fixed. A claw portion that allows insertion into the housing 19 and restricts removal may be formed in the vicinity of the faff portion 19 of the housing 10 ′. Alternatively, it is not effective at the time of temporary fixing, but when the circuit board 20 is fixed to the housing 10 ′, the circuit board 20 is placed on the circuit board 20 so as to be positioned at the tip of the shaft portion 19 to restrict the feeding / charging terminal 30 from coming off. The metal plate may be provided in advance by soldering in the same process as other mounted electronic components, or a resin plate may be attached on the circuit board 20 in advance by press-fitting a wedge portion.

  Further, in the present charging stand, the fixing of the power feeding / charging terminal 30 temporarily fixed to the housing 10 by holding the coil portion 33 to the box portion 17 to the circuit board 20 allows a deviation of the fixing position. By doing so, it is configured to absorb the dimensional variation of the power feeding / charging terminal 30.

  More specifically, in the present embodiment, as in the first embodiment, the circuit board 20 receives the fixing portion 31 of the power supply / charge terminal 30 as a configuration that absorbs the dimensional variation of the power supply / charge terminal 30. A terminal receiving hole 22e (FIG. 1) is provided. The terminal receiving hole 22 e has a long hole shape that is expanded in the direction A along the line segment that connects the fixing portion 31 and the contact portion 32 of the power feeding / charging terminal 30. Although not shown, a conductor land for soldering the fixing portion 31 of the power supply / charging terminal 30 is formed around the terminal receiving hole 22e, and this conductor land is formed on the circuit board 20. It is electrically connected to the formed power feeding / charging circuit.

  Thereby, after the circuit board 20 is screwed and fixed to the four bosses 16 of the casing 10 (screws are not shown), the fixing portion 31 of the power supply / charging terminal 30 temporarily fixed to the casing 10 is By inserting and soldering into the long hole-shaped terminal receiving hole 22e, the power feeding / charging terminal 30 is fixed to the circuit board 20 while allowing the fixing portion 31 to be displaced from the terminal receiving hole 22e.

  Next, the main points of the method of assembling the charging stand will be described with reference to FIG.

  First, the coil portions 33 of the two power feeding / charging terminals 30 are inserted into the shaft portion 19 of the housing 10 ′.

  When the coil portion 33 is inserted into the shaft portion 19 of the housing 10 ′, the inner diameter of the coil portion 33 is held by the outer peripheral surface of the shaft portion 19, and the power feeding / charging terminal 30 is temporarily fixed to the housing 10 ′. Is maintained. The temporarily fixed power supply / charge terminal 30 has a free end of the cantilever spring abutted against a seat portion 14 formed on the inner surface of the housing 10 'with a predetermined bias pressure, and a contact portion 32 is It protrudes to the outside of the housing 10 ′ through a slit 13 formed in the housing 10 ′.

  Next, the circuit board 20 is screwed to the four screw hole portions 18 of the housing 10 ′ with screws (not shown) through the screw holes 21. Thereafter, the feeding / charging terminal 30 fixing portion 31 temporarily fixed to the housing 10 ′ is inserted and soldered into the long hole-shaped terminal receiving hole 22 e so that the feeding / charging terminal 30 is fixed to the fixing portion 31. 31 is fixed to the circuit board 20 while allowing a positional shift of the terminal 31 with respect to the terminal receiving hole 22e.

  Thereafter, the assembly of the charging base is completed through a process of attaching a bottom panel (not shown) to the housing 10 '.

  In this embodiment, the configuration for absorbing the dimensional variation of the power feeding / charging terminal is the same as that of the first embodiment (the long hole-shaped terminal receiving hole 22e), but the configuration is the same as that of the second embodiment (long). You may make it assemble in the order similar to Example 2 with the screw-shaped hole of a hole shape.

  The charging stand according to the fourth embodiment of the present invention is different from the first to third embodiments in the configuration that absorbs the dimensional variation of the power feeding / charging terminal. For this reason, about the part which is the same as that of Examples 1-3, the description and drawing in Example 1 will be used, and detailed description is abbreviate | omitted.

  Although not shown, the charging stand according to the fourth embodiment of the present invention includes a casing, a circuit board on which a power feeding / charging circuit is formed, and two positive and negative electrodes, as in the first to third embodiments. It has a cantilever spring type power supply / charge terminal.

  The housing removably receives the electronic device. The circuit board is fixed in the housing.

  The power supply / charge terminal contacts the power supply / charge contact provided on the electronic device when the housing receives the electronic device, so that the power supply / charge circuit of the electronic device and the power supply / charge circuit of the circuit board Are electrically connected.

  The power feeding / charging terminal is formed by bending a metal wire having elasticity, and includes a fixed portion, a contact portion, and a coil portion. The fixing portion is fixed to the circuit board and electrically connected to the power feeding / charging circuit. The contact portion is formed on the free end side of the cantilever spring, and can contact the power supply / charge contact of the electronic device. The coil portion is formed between the fixed portion and the contact portion so as to extend the spring length of the power feeding / charging terminal.

  Also in this charging stand, the housing includes a coil holding portion that holds the outer diameter (outer circumference) or inner diameter (inner circumference) of the coil portion of the power feeding / charging terminal. In addition to functioning as a position reference for the power supply / charging terminal of the main charging base, the coil holding unit also functions as a temporary fixing means for the power supply / charging terminal during the assembly process of the main charging base.

  More specifically, in this embodiment, as in the first and second embodiments, the housing includes a box portion that holds the outer diameter of the coil portion of the power feeding / charging terminal as the coil holding portion. Further, the box portion includes a claw that holds the inner diameter of the coil portion so that the received power supply / charge terminal (coil portion thereof) does not come out of the box portion, including when temporarily fixed.

  Furthermore, the power supply / charging terminal temporarily fixed to the casing is fixed to the casing by holding the coil section in the box section, and the fixing position is allowed to be shifted. Thus, the dimensional variation of the power feeding / charging terminal is absorbed.

  More specifically, in the present embodiment, as a configuration that absorbs the dimensional variation of the power feeding / charging terminal, the casing is arranged along a line segment that connects the circuit board and the fixed portion of the power feeding / charging terminal and the contact portion. A claw portion is provided that allows movement in a different direction and holds it.

  Thereby, after the fixing portion of the power supply / charging terminal temporarily fixed to the housing is fixed (inserted and soldered) to the terminal receiving hole of the circuit board, the circuit board integrated with the power supply / charging terminal is By being held by the claw portion of the casing, the circuit board is fixed to the casing while allowing the power feeding / charging terminal to be displaced from the casing. In this embodiment, the circuit board can be attached to the housing without using screws.

  Next, the main points of the method for assembling the charging stand will be described.

  First, the coil portions of the two power feeding / charging terminals are inserted into the box portion of the casing.

  When the coil part is inserted into the box part of the housing, the outer diameter of the coil part is held by the inner wall surface of the box part and the inner diameter of the coil part is held by the claws, and the power feeding / charging terminal is temporarily attached to the housing. The stopped state is maintained. The temporarily fixed power supply / charge terminal has a free end of the cantilever spring abutted against a seat formed on the inner surface of the housing with a predetermined bias pressure, and a contact portion formed on the housing. It protrudes outside the housing through the slit.

  Next, the fixing portion of the power supply / charging terminal temporarily fixed to the housing is fixed by being inserted and soldered into the terminal receiving hole of the circuit board. After that, the circuit board integrated with the power supply / charging terminal is held by the claw portion of the above-described casing, so that the circuit board allows the positional deviation of the power supply / charging terminal with respect to the casing, Fixed to the housing.

  Thereafter, the assembly of the charging stand is completed through a process of attaching a bottom panel (not shown) to the housing.

  In the present embodiment, the structure of the coil holding portion that holds the coil portion of the power feeding / charging terminal is the same as in the first and second embodiments (box portion), but the structure may be the same as in the third embodiment. Good (shaft part).

  Needless to say, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical scope described in the claims.

  For example, the present invention is not limited to a charging base for a smartphone, an information processing tablet, and a mobile phone, but includes a portable game machine, a portable audio / video player, a portable navigation device, a digital camera, a PDA (Personal Digital Assistance), Alternatively, the present invention can be applied to all charging bases for portable and portable electronic devices such as handy terminals, order entry terminals, or labelers in a POS (Point Of Sales) system.

DESCRIPTION OF SYMBOLS 10, 10 'Housing | casing 13 Slit 14 Seat part 16 Boss 17 Box part 17c Claw 18 Screw hole part 19 Shaft part 20, 20' Circuit board 21 Screw fixing hole 21e Screw fixing hole (long hole shape)
22 Terminal receiving hole 22e Terminal receiving hole (long hole shape)
30 Power supply / Charging terminal 31 Fixed part 32 Contact part 33 Coil part

Claims (6)

It is a charging stand that removably accepts an electronic device and feeds and charges the received electronic device,
A housing for removably receiving an electronic device, a power supply / charging circuit are formed, a circuit board fixed in the housing, and provided in the electronic device when the housing receives the electronic device A power supply / charge terminal of a cantilever spring that electrically connects the power supply / charge circuit of the electronic device and the power supply / charge circuit of the circuit board by contacting the supplied power supply / charge contact. ,
The power feeding / charging terminal is formed by bending a metal wire having elasticity, and is fixed to the circuit board and electrically connected to the power feeding / charging circuit, and a free cantilever spring. A contact portion formed on an end side and capable of contacting a power supply / charge contact of an electronic device; and a coil portion formed between the fixed portion and the contact portion so as to extend a spring length of the power supply / charge terminal; With
The housing includes a coil holding portion that holds at least one of an outer diameter and an inner diameter of the coil portion of the power feeding / charging terminal,
Fixing the power supply / charging terminal temporarily fixed to the case by holding the coil part to the coil holding part to the circuit board, or the power supply / charging terminal temporarily fixed to the case The circuit board to which the circuit board is fixed is fixed to the housing while allowing a deviation of the fixed position, so that the dimensional variation of the power feeding / charging terminal is absorbed. And charging stand.   The coil holding portion receives the coil portion of the power feeding / charging terminal to receive the coil portion and holds the outer diameter of the coil portion, or passes through the coil portion of the power feeding / charging terminal. The charging stand according to claim 1, wherein the charging base is a shaft portion that holds the inner diameter of the coil portion.   3. When the coil holding part is the box part, the box part includes a claw for holding the inner diameter of the coil part so that the received power supply / charging terminal does not come out of the box part. The charging stand as described in. The circuit board includes a terminal receiving hole that receives the fixing portion of the power feeding / charging terminal, and the terminal receiving hole is a line segment that connects the fixing portion of the power feeding / charging terminal and the contact portion. It has a long hole shape expanded in the direction along
After the circuit board is fixed to the casing, the fixing portion of the power feeding / charging terminal temporarily fixed to the casing is inserted and soldered into the terminal receiving hole of the circuit board. 4. The charging stand according to claim 1, wherein the power feeding / charging terminal is fixed to the circuit board while allowing a positional shift of the fixing portion with respect to the terminal receiving hole. 5. The circuit board includes a screwing hole through which a screw for screwing the circuit board to the housing is inserted, and the screwing hole includes the fixing part and the contact part of the power supply / charging terminal. It has a long hole shape expanded in the direction along the line segment connecting
After the fixing portion of the power supply / charge terminal temporarily fixed to the housing is fixed to the circuit board, the circuit board integrated with the power supply / charge terminal is connected to the power supply / charge terminal via the screw hole. 4. The circuit board according to claim 1, wherein the circuit board is fixed to the casing while being allowed to be displaced with respect to the casing by being screwed to the casing. 5. The charging stand described. The housing includes a claw portion that holds the circuit board while allowing movement in a direction along a line connecting the fixing portion and the contact portion of the power supply / charging terminal.
After the fixing portion of the power feeding / charging terminal temporarily fixed to the housing is fixed to the circuit board, the circuit board integrated with the power feeding / charging terminal is secured by the claw portion of the housing. The charging base according to any one of claims 1 to 3, wherein the circuit board is fixed to the casing while being held, while allowing the circuit board to be displaced relative to the casing. .

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