Charger

Abstract

The utility model discloses a charger, which comprises a shell, a telescopic line module and a charging module, and is characterized in that the shell is provided with a strong current chamber and a weak current chamber positioned on one side of the strong current chamber; the telescopic line module is arranged in the weak current chamber; the charging module is electrically connected with the telescopic line module, the charging module comprises a charging circuit board and a plurality of electrical elements electrically connected with the charging circuit board, the charging circuit board and part of the electrical elements are located in the strong current chamber, and part of the electrical elements are located in the weak current chamber. By arranging part of the electrical elements in the strong current chamber and part of the electrical elements in the weak current chamber, the internal space of the shell can be fully utilized, so that more or larger electrical elements can be arranged in the shell, and the effects of improving the charging efficiency and reducing the overall size are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic device accessories, in particular to a charger. Background Art

[0002] With the increasing frequency of use of electronic devices such as mobile phones and tablets in daily life and work, people's requirements for the battery life and charging speed of electronic devices are also getting higher and higher. With the improvement of the charging efficiency of charging devices, the number and volume of electrical components inside the charging devices also increase accordingly, resulting in an increase in the overall volume of the charging devices, which is inconvenient for users to carry. Therefore, how to balance the charging efficiency and the overall volume of the charging devices has become an urgent problem for those skilled in the art to solve. Summary of the Utility Model

[0003] In view of this, the utility model provides a new charger to solve the above problems.

[0004] A charger provided in this application includes:

[0005] A housing provided with a strong electricity chamber and a weak electricity chamber on one side of the strong electricity chamber;

[0006] A telescopic wire module installed in the weak electricity chamber;

[0007] A charging module electrically connected to the telescopic wire module. The charging module includes a charging circuit board and a plurality of electrical components electrically connected to the charging circuit board. The charging circuit board and some of the electrical components are located in the strong electricity chamber, and at least part of at least one electrical component is located in the weak electricity chamber.

[0008] In some embodiments, for the electrical component at least partially located in the weak electricity chamber, an insulating sleeve is provided on the outside of the part located in the weak electricity chamber.

[0009] In some embodiments, the housing is provided with an avoidance portion that communicates the strong electricity chamber and the weak electricity chamber, and at least one electrical component extends from the strong electricity chamber through the avoidance portion into the weak electricity chamber.

[0010] In some embodiments, the housing includes a housing main body and an insulating partition connected to the housing main body. The housing main body has an inner cavity, and the insulating partition is located inside the inner cavity and divides the inner cavity into the strong electricity chamber and the weak electricity chamber. The avoidance portion is provided through the insulating partition.

[0011] In some embodiments, the telescopic wire module includes a wire reel rotatably installed on the insulating partition and a charging wire wound around the wire reel. One end of the charging wire is electrically connected to the charging circuit board and the other end extends to the outside of the housing.

[0012] In some embodiments, the cable reel is circular, the insulating partition is polygonal, the insulating partition has a plurality of corner portions in its circumference, the corner portions are located outside the cable reel, and the avoidance portions are provided at the corner portions; and / or

[0013] The retractable wire module also includes a retractable wire circuit board fixed relatively to the wire reel, and the charging wire is electrically connected to the retractable wire circuit board. A connecting circuit board is also provided in the weak current chamber, and the connecting circuit board is fixed relatively to the insulating partition, and the retractable wire circuit board is electrically connected to the connecting circuit board.

[0014] In some embodiments, the shell includes a shell body and an insulating partition connected to the shell body, the shell body is provided with an inner cavity, the insulating partition is located inside the inner cavity and divides the inner cavity into the high-current chamber and the low-current chamber, an installation gap is formed between the charging circuit board and the insulating partition, and at least a portion of the electrical components is located in the installation gap.

[0015] In some embodiments, the charging circuit board is provided with an installation notch for installing the electrical component, the installation notch is connected to the installation gap, and the electrical component provided in the installation notch is partially located in the installation gap and partially located on the side of the charging circuit board away from the insulating partition.

[0016] In some embodiments, the charger also includes two pins and two conductive parts installed in the shell, the two ends of the conductive parts are electrically connected to the pins and the charging circuit board respectively, and one end of the two conductive parts located in the shell is located in the high-voltage chamber and the low-voltage chamber respectively.

[0017] In some embodiments, an insulating baffle is provided in the weak current chamber, and the insulating baffle is located between the conductive member and the telescopic wire module.

[0018] The charger provided by the present invention arranges some electrical components in the high-current chamber and at least part of at least one electrical component in the low-current chamber, so that the space in the low-current chamber can also accommodate electrical components. The space inside the shell can be fully utilized to allow more or larger electrical components to be arranged inside the shell, thereby achieving the effect of both improving charging efficiency and reducing the overall volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a charger provided in one embodiment of the present utility model;

[0020] Figure 2 Bit Figure 1 A cross-sectional view of the charger shown in ;

[0021] Figure 3 is Figure 1 an exploded schematic view of the charger shown in

[0022] Figure 4 is Figure 3 a schematic structural view of the charger shown in with the housing main body and the charging cable removed;

[0023] Figure 5 is Figure 4 an exploded schematic view of the insulating partition, the connection circuit board, the telescopic wire circuit board and the wire reel shown in

[0024] Figure 6 is Figure 4 an exploded schematic view of the insulating board, the charging module and the insulating sleeve shown in

[0025] Figure 7 is Figure 1 a partial exploded schematic view of the charger shown in

[0026] In the figure: 10, charger; 12, housing; 14, telescopic wire module; 16, charging module; 18, high-voltage chamber; 20, low-voltage chamber; 22, housing main body; 24, insulating partition; 26, inner cavity; 28, first housing part; 30, second housing part; 32, wire reel; 34, charging cable; 36, telescopic wire circuit board; 38, connection circuit board; 40, positioning column; 42, positioning hole; 44, conductive part; 46, connection terminal; 48, charging circuit board; 50, electrical component; 52, insulating sleeve; 54, avoidance part; 58, installation gap; 60, installation notch; 62, pin; 64, conductive member; 66, insulating baffle. Detailed implementation manners

[0027] Next, in combination with the accompanying drawings and the detailed implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, inside, outside, top, bottom...) in the embodiments of the present utility model are only used to explain the relative positional relationship between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0029] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, the element can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present at the same time.

[0030] Please refer to Figures 1 to 7 , a charger 10 provided by an embodiment of the present utility model includes a housing 12, as well as a telescopic wire module 14 and a charging module 16 installed in the housing 12. A strong electricity chamber 18 and a weak electricity chamber 20 are provided inside the housing 12. The strong electricity chamber 18 is located on one side of the weak electricity chamber 20. The telescopic wire module 14 is installed in the weak electricity chamber 20, and the charging module 16 is installed in the strong electricity chamber 18, and the charging module 16 and the telescopic wire module 14 are electrically connected. The charging module 16 is used to be electrically connected to an external power supply and has a relatively large voltage. The telescopic wire module 14 is used to be connected to an electronic device and has a relatively small voltage. Installing the charging module 16 and the telescopic wire module 14 in the strong electricity chamber 18 and the weak electricity chamber 20 respectively can achieve the effect of separating strong electricity and weak electricity, thereby reducing the mutual interference between the charging module 16 and the telescopic wire module 14.

[0031] The housing 12 includes a housing main body 22 and an insulating partition 24 connected to the housing main body 22. The housing main body 22 has an inner cavity 26. The insulating partition 24 is located inside the inner cavity 26 and divides the inner cavity 26 to form the strong electricity chamber 18 and the weak electricity chamber 20. That is, the space of the inner cavity 26 on one side of the insulating partition 24 is the strong electricity chamber 18, and the space of the inner cavity 26 on the other side of the insulating partition 24 is the weak electricity chamber 20. The telescopic wire module 14 and the charging module 16 are respectively installed on opposite sides of the insulating partition 24. The insulating partition 24 is made of an insulating material and has the property of being insulating, that is, not conducting electricity. Setting it inside the housing main body 22 can divide the inner cavity 26 of the housing main body 22 into two different chambers, namely the strong electricity chamber 18 and the weak electricity chamber 20, and at the same time can also be used for installing the telescopic wire module 14 and the charging module 16 to separate the telescopic wire module 14 from the charging module 16.

[0032] The connection method between the insulating partition 24 and the housing main body 22 is not limited, such as snap fit, mechanical connection, glue connection, etc.

[0033] The housing main body 22 includes a first housing part 28 and a second housing part 30. The second housing part 30 covers the first housing part 28 and encloses an inner cavity 26 with the first housing part 28. The insulating partition 24 is located inside the first housing part 28 or the second housing part 30, or at the connection between the first housing part 28 and the second housing part 30. Dividing the housing main body 22 into the first housing part 28 and the second housing part 30 enables the charger 10 to separate the first housing part 28 and the second housing part 30 during the assembly process to install the charging module 16 and the telescopic cable module 14 on the insulating partition 24, and then fix the first housing part 28 and the second housing part 30 together to complete the assembly of the charger 10, reducing the assembly difficulty.

[0034] In an embodiment, the telescopic cable module 14 includes a cable reel 32 and a charging cable 34 wound around the cable reel 32. The cable reel 32 is rotatably mounted on the insulating partition 24, allowing the cable reel 32 to rotate relative to the insulating partition 24. One end of the charging cable 34 is electrically connected to the charging circuit board 48, and the other end, which is the end with the plug, extends outside the housing 12. When the user needs to use the charger 10, the charging cable 34 can be pulled out a corresponding length for connection to an electronic device. When not in use, the charging cable 34 can be retracted and wound around the cable reel 32 to store the charging cable 34 inside the housing 12, enabling the charging cable 34 to have a telescopic function for convenient use and carrying by the user.

[0035] The telescopic cable module 14 further includes a telescopic cable circuit board 36. The charging cable 34 is electrically connected to the telescopic cable circuit board 36. The telescopic cable circuit board 36 is located on the side of the cable reel 32 close to the insulating partition 24 and is relatively fixed to the cable reel 32 to rotate relative to the insulating partition 24 together with the cable reel 32.

[0036] A connection circuit board 38 is also provided in the weak electric chamber 20. The connection circuit board 38 is fixed on the insulating partition 24 and electrically connected to the charging circuit board 48. The telescopic cable circuit board 36 of the telescopic cable module 14 is electrically connected to the connection circuit board 38, thus achieving the electrical connection between the telescopic cable module 14 and the charging module 16. Specifically, the circumferential dimension of the connection circuit board 38 is smaller than the circumferential dimension of the insulating partition 24, and the projection of the connection circuit board 38 along the arrangement direction of the strong electric chamber 18 and the weak electric chamber 20 is located inside the insulating partition 24 to reduce the circumferential dimension of the charger 10.

[0037] Positioning posts 40 are provided on the side of the insulating partition 24 close to the weak electric chamber 20, and corresponding positioning holes 42 are provided on the connection circuit board 38. The positioning posts 40 pass through the positioning holes 42 to mount the connection circuit board 38 on the insulating partition 24 and at the same time enable the insulating partition 24 to be in contact with the connection circuit board 38 to reduce the thickness of the charger 10.

[0038] The specific number of positioning posts 40 and positioning holes 42 is not limited and can be one or more. In this embodiment, there are multiple positioning posts 40 and positioning holes 42 and they correspond one to one. Each positioning post 40 passes through a corresponding positioning hole 42.

[0039] A conductive portion 44 is provided on the side of the connecting circuit board 38 near the retractable cable circuit board 36. The conductive portion 44 is annular, and the central axis of the conductive portion 44 is colinear with the rotation axis of the cable reel 32. A connecting terminal 46 is provided on the side of the retractable cable circuit board 36 near the connecting circuit board 38. The connecting terminal 46 has a conductive protrusion that abuts against the conductive portion 44 to contact the connecting circuit board 38, forming an electrical connection. By providing the conductive portion 44 on the connecting circuit board 38 and utilizing the conductive protrusion to abut against the conductive portion 44 to achieve a conductive effect, the retractable cable circuit board 36 rotates with the connecting circuit board 38, and the conductive protrusion moves on the conductive portion 44, always maintaining contact with the connecting circuit board 38, preventing the cable reel 32 from rotating and affecting the electrical connection between the retractable cable module 14 and the charging module 16. Specifically, the conductive portion 44 is an annular groove recessed in the connecting circuit board 38.

[0040] In one embodiment, the charging module 16 includes a charging circuit board 48 and a plurality of electrical components 50 connected to the charging circuit board 48, such as capacitors, inductors, etc. The charging circuit board 48 and some of the electrical components 50 are located in the high-current chamber 18, and at least part of at least one electrical component 50 is located in the low-current chamber 20. Specifically, the charging circuit board 48 and the telescopic wire module 14 are respectively mounted on opposite sides of the insulating partition 24. By arranging some of the electrical components 50 in the low-current chamber 20, both the high-current chamber 18 and the low-current chamber 20 inside the shell 12 can accommodate electrical components 50, and the space inside the shell 12 can be fully utilized so that more or larger electrical components 50 can be arranged inside the shell 12, thereby achieving the effect of improving charging efficiency and reducing the overall volume.

[0041] The electrical component 50 located in the weak current chamber 20 is provided with an insulating sleeve 52 on the outside of the part located in the weak current chamber 20. The electrical component 50 is electrically connected to the charging circuit board 48, so its voltage is relatively large. The insulating sleeve 52 has an insulating effect, which can separate the electrical component 50 from the telescopic wire module 14, thereby reducing the mutual interference between the electrical component 50 in the weak current chamber 20 and the telescopic wire module 14.

[0042] The insulating sleeve 52 can be a cover made of insulating material and is provided on the outside of the electrical component 50, or it can be an insulating layer attached to the surface of the electrical component 50. In this embodiment, the insulating sleeve 52 is a cover provided on the entire periphery of the electrical component 50.

[0043] In one embodiment, the housing 12 is provided with an avoidance portion 54 which penetrates through the insulating partition 24, thereby connecting the strong electric chamber 18 and the weak electric chamber 20. At least one electrical component 50 extends from the strong electric chamber 18 through the avoidance portion 54 into the weak electric chamber 20. That is, a part of the electrical component 50 is located in the strong electric chamber 18 and a part is located in the weak electric chamber 20. The arrangement directions of the strong electric chamber 18, the insulating partition 24 and the weak electric chamber 20 are in the thickness direction of the charger 10. By providing the avoidance portion 54 on the insulating partition 24, the strong electric chamber 18 and the weak electric chamber 20 are in a conducting state at this position, so that a relatively high electrical component 50 such as a capacitor can be provided here, which is beneficial to reducing the overall thickness of the charger 10.

[0044] The number of the avoidance portions 54 on the insulating partition 24 is not limited and can be set according to the number of electrical components 50 to be installed in the weak electric chamber 20. In this embodiment, the number of the avoidance portions 54 on the insulating partition 24 is one. A capacitor of the charging module 16 extends from the strong electric chamber 18 through the avoidance portion 54 into the weak electric chamber 20. The capacitor is relatively large in volume among the multiple electrical components 50. Setting it at the position where the strong electric chamber 18 and the weak electric chamber 20 are connected can liberate the installation space on the charging circuit board 48, so that a larger number of electrical components 50 with relatively small volume can be provided on the charging circuit board 48.

[0045] In this embodiment, the coiling reel 32 is substantially circular, and the insulating partition 24 is substantially polygonal, such as rectangular, and has multiple side portions connected end to end. The connection portion between two adjacent side portions forms a corner portion. The insulating partition 24 forms multiple spaced-apart corner portions in its circumferential direction. The corner portions are located outside the coiling reel 32, and the avoidance portion 54 is provided at the corner portions. Except for the space for accommodating the telescopic wire module 14, the volume of the space at the corner of the weak electric chamber 20 is relatively large, so that a relatively large electrical component 50 can be provided there.

[0046] The charging circuit board 48 is located on the side of the insulating partition 24 away from the telescopic wire module 14, and an installation gap 58 is formed between the charging circuit board 48 and the insulating partition 24. At least a part of some electrical components 50 is located in the installation gap 58. By forming the installation gap 58 between the charging circuit board 48 and the insulating partition 24, it is convenient for the charging circuit board 48 to dissipate heat, and at the same time, it can also be used to accommodate the electrical components 50 to further reduce the thickness of the charger 10.

[0047] That at least a part of the electrical component 50 is located in the installation gap 58 may mean that the entire electrical component 50 is located in the installation gap 58, or it may mean that only a part of the electrical component 50 is located in the installation gap 58 and a part is located outside the installation gap 58.

[0048] On one side of the insulating partition 24 away from the telescopic wire module 14, there is an extension part 59. The charging circuit board 48 is fixed to the insulating partition 24 through the extension part 59, thereby forming an installation gap 58 between the charging circuit board 48 and the insulating partition 24.

[0049] The charging circuit board 48 is provided with an installation notch 60. The installation notch 60 is connected to the installation gap 58. Part of the electrical components 50 are installed in the installation notch 60, and the electrical components 50 installed in the installation notch 60 are partially located in the installation gap 58 and partially located on the side of the charging circuit board 48 away from the insulating partition 24. This enables electrical components 50 with a size greater than the installation gap 58 in the thickness direction to also utilize the installation gap 58 and accommodate a part of them in the installation gap 58, which is beneficial to reducing the overall thickness of the charger 10.

[0050] In one embodiment, the charger 10 further includes two plug pins 62 and two conductive members 64 installed in the housing 12. The two ends of the conductive member 64 are respectively connected to the plug pin 62 and the charging circuit board 48. The two plug pins 62 are used to insert into a socket strip, socket, etc., so as to connect the charging module 16 to an external power supply, thereby charging an electronic device.

[0051] The two ends of the two conductive members 64 located inside the housing 12 are respectively located in the strong electricity chamber 18 and the weak electricity chamber 20. That is, one end of a conductive member 64 electrically connected to the charging circuit board 48 is located in the strong electricity chamber 18, and one end of the other conductive member 64 electrically connected to the charging circuit board 48 is located in the weak electricity chamber 20. Compared with the solution of setting both ends of the two conductive members 64 in the strong electricity chamber 18, the height of the strong electricity chamber 18 in the thickness direction can be less than the distance between the two conductive members 64, which is beneficial to reducing the thickness of the charger 10.

[0052] There is an insulating baffle 66 in the weak electricity chamber 20. The insulating baffle 66 is located between the conductive member 64 and the telescopic wire module 14. Since the conductive member 64 is connected to an external power supply, the voltage is relatively high. By setting the insulating baffle 66 between the conductive member 64 and the telescopic wire module 14 and using the insulation of the insulating baffle 66 to separate the conductive member 64 and the telescopic wire module 14, the mutual interference between the conductive member 64 and the telescopic wire module 14 can be reduced.

[0053] Specifically, the insulating baffle 66 is fixed inside the housing main body 22. For example, the insulating baffle 66 is integrally formed with the housing main body 22, and one end of the insulating baffle 66 away from the housing main body 22 abuts against the insulating baffle 66, thereby completely separating the conductive member 64 and the telescopic wire module 14 in the thickness direction of the charger 10.

[0054] The above embodiments are only the preferred embodiments of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A charger, characterized in that: include: The housing is provided with a strong current chamber and a weak current chamber located on one side of the strong current chamber; A telescopic line module is installed in the weak current chamber; A charging module is electrically connected to the telescopic wire module. The charging module includes a charging circuit board and a plurality of electrical components electrically connected to the charging circuit board. The charging circuit board and some of the electrical components are located in the high-voltage chamber, and at least a portion of at least one of the electrical components is located in the low-voltage chamber.

2. The charger according to claim 1, characterized in that The electrical component at least partially located in the weak current chamber is provided with an insulating sleeve on the outside of the portion located in the weak current chamber.

3. The charger according to claim 1, wherein: The shell is provided with a relief portion, the relief portion communicating with the strong current chamber and the weak current chamber, and at least one of the electrical components extends from the strong current chamber through the relief portion into the weak current chamber.

4. The charger according to claim 3, characterized in that The shell includes a shell body and an insulating partition connected to the shell body. The shell body is provided with an inner cavity. The insulating partition is located inside the inner cavity and divides the inner cavity into the high-current chamber and the low-current chamber. The avoidance portion is provided through the insulating partition.

5. The charger according to claim 4, characterized in that: The retractable wire module includes a wire reel rotatably mounted on the insulating partition and a charging wire wound on the wire reel. One end of the charging wire is electrically connected to the charging circuit board, and the other end extends to the outside of the shell.

6. The charger according to claim 5, characterized in that: The cable reel is circular, the insulating partition is polygonal, the insulating partition has a plurality of corner portions in its circumferential direction, the corner portions are located outside the cable reel, and the avoidance portions are provided at the corner portions; and / or The retractable wire module also includes a retractable wire circuit board fixed relatively to the wire reel, and the charging wire is electrically connected to the retractable wire circuit board. A connecting circuit board is also provided in the weak current chamber, and the connecting circuit board is fixed relatively to the insulating partition, and the retractable wire circuit board is electrically connected to the connecting circuit board.

7. The charger according to claim 1, characterized in that The shell includes a shell body and an insulating partition connected to the shell body. The shell body is provided with an inner cavity. The insulating partition is located inside the inner cavity and divides the inner cavity into the high-current chamber and the low-current chamber. An installation gap is formed between the charging circuit board and the insulating partition, and at least a portion of the electrical components is located in the installation gap.

8. The charger according to claim 7, characterized in that: The charging circuit board is provided with an installation notch for installing the electrical component, the installation notch is connected to the installation gap, and the electrical component arranged in the installation notch is partially located in the installation gap and partially located on the side of the charging circuit board away from the insulating partition.

9. The charger according to any one of claims 1 to 8, characterized in that: The charger also includes two pins and two conductive parts installed on the shell, the two ends of the conductive parts are electrically connected to the pins and the charging circuit board respectively, and one end of the two conductive parts located in the shell is located in the high-voltage chamber and the low-voltage chamber respectively.

10. The charger according to claim 9, characterized in that: An insulating baffle is provided in the weak current chamber, and the insulating baffle is located between the conductive member and the telescopic wire module.

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