TWI578137B - Power adapter - Google Patents

Description

Power Adapter

The present invention relates to a power adapter, and more particularly to a power adapter capable of charging an electronic product and transmitting data with an external device.

The prior art related to the present invention can be referred to the Taiwan Patent No. M453274, which was issued on May 11, 2013. The power socket disclosed in the patent includes a casing and a circuit board module fixed inside the casing. The circuit board module includes a circuit board and a plurality of electronic components mounted on the circuit board, including some control chips and input/output electrical connectors, including a USB (Universal Serial Bus) 2.0 connector. The outer casing includes upper and lower casings which are covered with each other, and a receiving space is formed between the upper and lower casings to cover the circuit board module. The upper casing is provided with a positioning post having a thread, the lower casing is provided with a plurality of ribs, the rib is provided with a through hole, and the circuit board is also provided with a plurality of through holes. Fixing members such as screws and bolts pass through the through holes of the lower casing and the circuit board, and are locked to the upper casing, thereby fixing the upper and lower casings and the circuit board together. The housing is provided with openings at the sides to expose the mating interface of the electrical connector. A cable is also connected to one end of the power socket. The other end of the cable is plugged to connect to an external AC power source.

However, with the trend of miniaturization of electronic products and the rapid development of wearable electronic products, the above-mentioned power outlets are unable to meet the market demand due to their large size and carrying awkwardness.

Therefore, it is necessary to provide an improved power adapter to overcome the above drawbacks.

The technical problem to be solved by the present invention is to provide a novel power adapter capable of being applied to miniaturization.

To solve the above technical problem, the technical means of the present invention is: a power adapter, which comprises a circuit board module and a housing. The housing includes a main body and an upper cover on the main body. The main body is provided with a bottom wall and a side wall disposed around the bottom wall. The bottom wall and the side wall together form a receiving space for receiving the circuit board module. The top of the side wall is provided with a plurality of blocks, the plurality of blocks are oppositely disposed and located above the upper cover, the side wall includes a first side wall, and the first side wall is provided with a movable block capable of rotating, at least one The block is placed at the top of the movable block and is offset outwardly with the rotation of the movable block.

Compared with the prior art, the power adapter of the present invention can prevent the wearable electronic product from interfering with the card block during the placement process.

100‧‧‧Power adapter

1‧‧‧shell

10‧‧‧ accommodating space

11‧‧‧ Subject

110‧‧‧ bottom wall

111‧‧‧ side wall

112‧‧‧ openings

113‧‧‧Limited blocks

114‧‧‧ rib

1140‧‧‧Support surface

1141‧‧‧Limited

115‧‧‧Installation column

116‧‧‧Positioning column

117‧‧‧ card block

118‧‧‧Snap block

119‧‧‧step surface

120‧‧‧ longwall

121‧‧‧Short wall, first side wall

123‧‧‧Fixed wall

124‧‧‧Pivot hole

125‧‧‧ fixed seat

126‧‧‧ fixed cavity

128‧‧‧Retaining wall

13‧‧‧Upper cover

130‧‧‧ top wall

131‧‧‧through hole

132‧‧‧ side edge

133‧‧‧ hook

2‧‧‧Circuit board module

20‧‧‧ boards

201‧‧‧Electrical hole

202‧‧‧ hole

3‧‧‧Power connector

30‧‧‧terminal

4‧‧‧ socket

40‧‧‧ docking interface

5‧‧‧ switch

60‧‧‧ nuts

61‧‧‧ screw

7‧‧‧ Activity block

70‧‧‧ body

71‧‧‧Operation Department

72‧‧‧ pivot rod

73‧‧‧Locating pin

75‧‧‧Abutment

8‧‧‧ Spring

The first figure is a perspective view of the power adapter of the present invention.

The second figure is a perspective view of another angle of the power adapter of the present invention.

The third figure is a partially exploded view of the power adapter of the present invention.

The fourth figure is a partially exploded view of the power adapter further exploded in the third figure.

The fifth and fourth figures are similar and taken from different angles.

Figure 6 is a cross-sectional view of the power adapter of the present invention taken along line VI-VI of the first figure.

Figure 7 is a cross-sectional view of the power adapter of the present invention taken along line VII-VII of the first drawing.

The eighth figure is another perspective view of the power adapter of the present invention in which the upper cover of the power adapter has not been assembled.

The ninth drawing is an exploded perspective view of the main body of the power adapter of the present invention.

Figure 11 is a cross-sectional view of the power adapter of the present invention taken along line X-X of the first drawing.

The eleventh figure is similar to the tenth figure, showing the positions of the movable blocks of the power adapter of the present invention in different states.

Referring to the first to third figures, the power adapter 100 of the present invention is used for charging a wearable electronic product (not shown). The power adapter 100 is generally in the shape of a box, and the top is provided with a power source extending from the inside. The terminal 30 of the connector 3 is provided with a docking interface 40 of a Micro USB (Universal Serial Bus) socket 4 on the side. In use, the wearable electronic product is placed on the upper side of the power adapter 100, and is electrically connected to the terminal 30. The Micro USB socket 4 is connected to an external power source by a Micro USB plug (not shown), thereby realizing the wearable electronic product. Charging action. The internal structure of the power adapter 100 of the present invention will be described in detail below.

As shown in the third to fourth embodiments, the power adapter 100 includes a housing 1 and a circuit board module 2 located in the housing 1. The housing 1 includes a main body 11 and an upper cover 13 assembled on the upper and lower sides. The upper cover 13 is assembled to form a box-like structure, and a receiving space 10 is provided inside. The main body 11 includes a bottom wall 110 and a side wall 111 disposed around the bottom wall 110. The bottom wall 110 and the side wall 111 define the receiving space 10, and the circuit board module 2 is positioned in the receiving space 10.

The side wall 111 is provided with an opening 112 corresponding to the Micro USB socket 4 to expose the mating interface 40 of the Micro USB socket 4 outward. The bottom wall 110 is provided with a plurality of ribs 114, A mounting post 115 and a plurality of positioning posts 116 are located at a central location. The ribs 114 are provided with a supporting surface 1140 for carrying the circuit board module 2, and a protruding limiting portion 1141 for limiting the circuit board module 2 in the horizontal direction. A nut 60 is thermally fused in the mounting post 115 (refer to FIG. 7). The upper surface of the mounting post 115 is flush with the support surface 1140. The positioning post 116 is higher than the support surface 1140 for insertion into the circuit board module 2. Viewed from the side, the two ends of the main body 11 are upwardly protruded and are provided with a block 117 protruding toward each other for snapping the wearable electronic product placed on the power adapter 100 (not shown). The corresponding structure on the display).

As shown in the fifth figure, the upper cover 13 is substantially in the form of a sheet, and is provided with a top wall 130. The top wall 130 is provided with a plurality of through holes 131. The upper cover 13 is further provided with a plurality of side edges 132 projecting downward from the peripheral edges of the top wall 130, and a plurality of elastic hooks 133 continuing downward from the side edges 132. The side wall 111 of the main body 11 is correspondingly provided with a snap block 118. In the present embodiment, there are eight hooks 133, which are arranged on four sides, and the snap blocks 118 are correspondingly arranged. The main body 11 is also provided with two step faces 119 which are disposed on the inner side of the side wall 111 below the upper surface of the side wall 111. As shown in the sixth figure, when the upper cover 13 is assembled to the main body 11, the upper cover 13 is trapped in the main body 11, the top wall 130 is seated on the stepped surface 119, and the hook 133 of the upper cover 13 is caught under the snap block 118 to restrict the upper cover. 13 is separated from the main body 11. The upper surface (not numbered) of the top wall 130 is substantially flush with the upper surface (not numbered) of the two long sides of the side wall 111 of the main body 11.

Referring to the third to fifth figures, the circuit board module 2 includes a circuit board 20, the power connector 3, the Micro USB socket 4, and the switch 5. As previously described, the power connector 3 is used to electrically connect the wearable electronic product, the Micro USB socket 4 is used to connect an external power source, and the switch 5 is used to restart the wearable electronic product. Wherein the power connector 3 is mounted on the upper surface of the circuit board 20, and the Micro USB socket 4 And the switch 5 is mounted on the lower surface of the circuit board 20. The power connector 3, the Micro USB socket 4, and the switch 5 are conventional connectors, and the specific structure will not be described in detail. The power connector 3 is a Pogo connector, and the above-described pin terminals 30 are provided, and in the present embodiment, five pins are arranged in one lateral direction. The circuit board 20 is provided with a conductive hole 201 electrically contacting the corresponding terminal 30, and is further provided with a hole 202 for mating with the positioning post 116. The Micro USB socket 4 is soldered to the circuit board 20, and the side walls and the rear wall of the shielding case extend out of a plurality of mounting legs and are also soldered to the circuit board 20. The circuit board 20 is substantially rectangular, and the power connector 3, the Micro USB socket 4 and the switch 5 are respectively disposed on three different sides of the circuit board 20, wherein the power connector 3 and the switch 5 are respectively located on two lateral sides, and the Micro USB socket 4 is located on a longitudinal side. The wearable electronic product (not shown) is provided with a strap. When charging, the strap extends in the longitudinal direction, and the Micro USB plug is inserted laterally, so that it does not interfere with the wearable electronic product (not shown). The power adapter of the present invention mounts the power connector 3, the Micro USB socket 4 and the switch 5 on both sides of the circuit board 20, effectively utilizes the space of the circuit board 20, facilitates PCB wiring, and facilitates SMT soldering operations.

Referring to the third and seventh figures, a pair of limiting blocks 113 are formed on the inner side of the side wall 111 of the main body 11. The pair of limiting blocks 113 are adjacent to the opening 112 and are disposed on both sides of the opening 112 for fixing the circuit. An edge of the board 20. As shown in FIG. 5 , when the circuit board module 2 is assembled into the receiving space 10 of the main body 11 , one side edge is first inserted under the limiting block 113 and then pressed down; the positioning post 116 of the main body 11 is inserted into the circuit board 20 . The hole 202 is finally closed; finally, the screw 61 is used to lock through the circuit board 20 and the nut 60 in the mounting post 115. With the setting of the limiting block 113, the side of the circuit board module 2 can be reinforced and fixed by the side of the Micro USB, so as to avoid the circuit board module 2 when the Micro USB plug is plugged, especially when obliquely inserted. Shake. Then, the upper cover 13 is fastened to the main body 11 to complete the assembly of the power adapter 100, as shown in the first figure. Finally, the terminal 30 is exposed through the through hole 131 of the upper cover 13, and the docking interface 40 of the Micro USB socket 4 is aligned with the opening 112 of the main body 11 to be exposed outward.

The housing 1 of the power adapter 100 of the present invention further has a modification. The main body 11 has a split structure and is partially movable so that the top block 117 can be moved outward to facilitate the wearable electronic product (not shown). Buckle fit. The above structure will be described in detail below with reference to the eighth to eleventh drawings.

Referring first to the eighth embodiment, the side wall 111 of the main body 11 includes two long walls 120 and two short walls 121 which are higher than the long wall 120, and the aforementioned block 117 is disposed at the center of the top end of the short wall 121. One of the short walls 121 is a split structure, and the middle part is an additionally formed movable block 7 and then pivotally connected to the main body 11. The movable block 7 can be rotated outward, and the block 117 is outwardly offset, and the external force is released. After that, it is reset by means of a spring 8. In the present embodiment, only one short wall 121 is formed by the above manner. In other embodiments, the movable block 7 may be disposed on both short walls 121 so that both of the blocks 117 can be outward. Offset.

As shown in the ninth figure, for the convenience of description, the short wall 121 on which the movable block 7 is mounted may be referred to as a first side wall 121, and the first side wall 121 includes the movable block 7 and a fixed position on both sides of the movable block 7. The wall 123 is provided with a pivot hole 124 on the side facing the movable block 7, and the pivot hole 124 is penetrated toward the side of the receiving space 10. The cross section of the pivot hole 124 is substantially semicircular. The inner rectangle is rectangular, and the height of the rectangle is smaller than the diameter of the semicircle, so as to prevent the movable block 7 from slipping when it rotates. The fixed wall 123 is integrally formed with the main body 11. A fixing seat 125 is formed on the bottom wall 110. The fixing seat 125 is formed by the three side walls protruding from the bottom wall 110 into the receiving cavity 10 to form an open cavity 126. The spring 8 is mounted. The fixed cavity 126. The fixing seat 125 also has a part of the wall (not labeled) on the upper side of the fixed cavity 126 to avoid the The spring 8 slides out of the fixed cavity 126.

The movable block 7 includes a body 70, an operating portion 71 projecting outward from the bottom of the body 70, a pivoting rod 72 projecting from the body 70, and a positioning pin 73, and an abutting portion 75 projecting inward from the top of the body 70. The block 117 is located at the middle of the highest point of the body 70. The operating portion 71 is located at the bottom of the outer side of the body 70 and is located outside the main body 11 after assembly for manual operation by the user. The pivoting rods 72 protrude outwardly from the sides of the body 70 facing the fixed wall 123. In the vertical direction, the pivoting rods 72 are generally located in the middle of the body 70. The positioning pin 73 protrudes from the inner side surface of the body 70 facing the receiving space 10, and the spring 8 is sleeved and fixed. The positioning pin 73 is located close to the bottom of the movable block 7 and is located below the pivoting rod 72. When assembling, the spring 8 is first placed in the fixed cavity 126, and the two pivoting rods 72 of the movable block 7 are assembled into the two pivoting holes 124 from the side of the receiving space 10, and one end of the spring 8 is placed on the movable block. The movable block 7 can be assembled to the fixed wall 123 to form the first side wall 121.

As shown in the tenth figure and the eleventh figure, when the power adapter 100 is not in use, the bottom of the movable block 7 is pushed outward by the pre-compressed spring 8, but since the abutting portion 75 of the top abuts against the upper cover 13 The edge, so the moving block 7 remains stationary. In use, in order to prevent the wearable electronic product (not shown) from being placed on the upper side of the upper cover 13, it interferes with the block 117, and the block 117 is first removed. During operation, the operating portion 71 is pushed inwardly by hand to rotate the movable block 7 outward, and the top block 117 is moved outward, and the spring 8 is further compressed. After the wearable electronic product (not shown) is placed, the movable block 7 is released, and then the operating portion 71 is pushed outward by the restoring force of the spring 8, the movable block 7 is reset, the block 117 is reset, and the wearable type is engaged. A notch (not shown) on the side of the electronic product (not shown) ensures that the wearable electronic product is not accidentally knocked off during charging. In addition, in order to prevent the movable block 7 from rotating excessively inward, the bottom wall 110 is further provided with a blocking movable block. The retaining wall 128 of 7 (see the eleventh figure).

In the present embodiment, the movable block 7 is made of plastic, and other materials such as a metal material may also be used. The power adapter 100 of the present invention is formed by splitting the first side wall 121 of the card block 117 to form a movable block 7, which can move the inwardly projecting block 117 outward when necessary to avoid interference. In the present embodiment, an opening is formed between the two fixed walls 123 to fix the movable block 7, that is, the movable block 7 separately constitutes a section of the first side wall 121, because the main function of the movable block 7 is to drive the block 117 to move. Instead of forming the accommodating space 10, the first side wall 121 may be integrally continuous, and the movable block 7 is attached to the outer side of the first side wall 121. The pivoting movable block 7 is not necessarily a wall structure, and may be A block structure such as a protruding fixed block.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It is covered by the following patent application.

10‧‧‧ accommodating space

11‧‧‧ Subject

117‧‧‧ card block

123‧‧‧Fixed wall

124‧‧‧Pivot hole

125‧‧‧ fixed seat

126‧‧‧ fixed cavity

7‧‧‧ Activity block

71‧‧‧Operation Department

72‧‧‧ pivot rod

73‧‧‧Locating pin

75‧‧‧Abutment

8‧‧‧ Spring

Claims (9)

A power adapter includes: a circuit board module; and a housing, the housing includes a main body and an upper cover on the main body, the main body is provided with a bottom wall and a side wall disposed around the bottom wall, the bottom wall and The side walls jointly form a receiving space for accommodating the circuit board module; wherein the side wall includes a first side wall, the first side wall is provided with a movable movable block, and a top of the movable block is provided with a card block, the block The spring is disposed on the upper side of the upper cover and is offset from the rotation of the movable block. The bottom wall is further provided with a fixed seat in the receiving space, and the bottom of the movable block is provided with a positioning pin. The spring end sleeve is set to the position pin, and one end is fixed to the fixing seat to set the spring between the fixing seat and the movable block. When the movable block rotates outward under the external force, the spring is compressed inward, and the external force is released. After that, the restoring force of the spring forces the movable block to reset. The power adapter of claim 1, wherein the spring is a pre-compression setting and is continuously pushed outwardly against the bottom of the movable block, and the top of the movable block is provided with an abutting portion against the edge of the upper cover to The movable block is kept not rotated by the external force. The power adapter of any one of claims 1 to 2, wherein the bottom wall is further provided with a retaining wall that blocks excessively inward rotation of the bottom of the movable block. The power adapter of claim 1, wherein the first side wall further comprises two fixed walls integrally formed with the main body, each fixed wall is provided with a pivot hole, and two sides of the movable block are provided with two The pivoting rod is inserted into the pivot hole by the pivoting rod to achieve pivotal fixing. The power adapter of claim 4, wherein the pivoting hole is disposed through the side of the receiving space so that the movable block is assembled from the inner side of the receiving space into the two fixed portions. Between the walls. The power adapter of claim 4, wherein the movable block comprises a body, an operating portion protruding outward from the bottom of the body, the operating portion being located on the outer side of the body for manual operation by a user. The power adapter of claim 1, wherein the circuit board module is provided with a circuit board and a socket and a power connector mounted to the circuit board, the socket being mounted on a lower surface of the circuit board and provided with a The externally exposed docking interface is mounted on an upper surface of the circuit board and is provided with a needle terminal exposed through the upper cover. The power adapter of claim 7, wherein the circuit board is further provided with a switch module, wherein the power connector, the Micro USB socket and the switch are respectively disposed on three different sides of the circuit board. The power adapter of claim 1 or 7, wherein the bottom wall is provided with a plurality of ribs, the ribs jointly forming a support surface for carrying the circuit board module, The inner side of the side wall is further formed with a pair of limiting blocks, which are pressed downward against the edge of the circuit board module to prevent the circuit board module from shaking.