CN219204141U

CN219204141U - Charger (charger)

Info

Publication number: CN219204141U
Application number: CN202223600550.6U
Authority: CN
Inventors: 马克俊
Original assignee: Shenzhen Hehuiyuan Electronic Technology Co ltd
Current assignee: Shenzhen Hehuiyuan Electronic Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-16
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a charger, which comprises a shell and a circuit module arranged in the shell, wherein the circuit module comprises a first circuit board, a second circuit board, a third circuit board and a fourth circuit board, the first circuit board is provided with an input interface, the second circuit board is provided with an output interface, the third circuit board is provided with a first control module, and the fourth circuit board is provided with a second control module, wherein the first circuit board and the second circuit board are arranged at intervals along a first direction, the first circuit board can be close to a first end of the shell, the second circuit board is close to a second end of the shell, the structure is compact, a gap waste space is avoided, the third circuit board and the fourth circuit board are arranged at intervals along a second direction, heat dissipation can be carried out separately, the heat dissipation area is improved, the heat dissipation problem is solved, the third circuit board and the fourth circuit board are arranged separately so that the heat dissipation is uniform, the temperature is balanced, the local overheating is avoided, and the stability and the reliability are improved.

Description

Charger (charger)

Technical Field

The utility model relates to the technical field of charging equipment, in particular to a charger.

Background

The electrical energy consumed by the electronic device during operation is largely converted into heat dissipation. The heat generated by the electronic equipment can quickly raise the internal temperature, if the heat is not timely emitted, the equipment can continuously raise the temperature, the device can fail due to overheating, and the reliability of the electronic equipment can be reduced.

However, the stacking of the circuit board and the electronic components of the existing charger has low space utilization rate and poor heat dissipation effect, and the reliability of the charger is affected.

Disclosure of Invention

In view of this, the present utility model proposes a charger.

The utility model provides a charger, which comprises a shell and a circuit module arranged in the shell, wherein the shell is provided with a first end and a second end opposite to the first end, and the first end of the shell is provided with a plug;

the circuit module includes:

the first circuit board is provided with an input interface, and the input interface is electrically connected with the pins of the plug;

the second circuit board is provided with an output interface which extends out of the second end of the shell at intervals;

the third circuit board is provided with a first control module, the input end of the first control module is electrically connected with the input interface, and the output end of the first control module is electrically connected with the output interface;

the fourth circuit board is provided with a second control module, the input end of the second control module is electrically connected with the input interface, and the output end of the second control module is electrically connected with the output interface;

the first circuit board and the second circuit board are arranged at intervals along a first direction, the third circuit board and the fourth circuit board are arranged at intervals along a second direction, the first direction and the second direction are perpendicular, and the first direction is the arrangement direction between the first end and the second end.

Further, a spacing cavity is formed by enclosing the first circuit board, the second circuit board, the third circuit board and the fourth circuit board; the first control module comprises a first rectifying and filtering circuit, a first control circuit and a first transformer, wherein the input end of the first rectifying and filtering circuit is connected with the input interface, the output end of the first rectifying and filtering circuit is connected with the input end of the first control circuit, the output end of the first control circuit is connected with the input end of the first transformer, the output end of the first transformer is connected with the output interface, and the first transformer is arranged on one side of the third circuit board facing the compartment.

Further, a spacing cavity is formed by enclosing the first circuit board, the second circuit board, the third circuit board and the fourth circuit board; the second control module comprises a second rectifying and filtering circuit, a second control circuit and a second transformer, wherein the input end of the second rectifying and filtering circuit is connected with the input interface, the output end of the second rectifying and filtering circuit is connected with the input end of the second control circuit, the output end of the second control circuit is connected with the input end of the second transformer, the output end of the second transformer is connected with the output interface, and the second transformer is arranged on one side of the fourth circuit board facing the compartment.

Further, the circuit module further comprises a first output management circuit and a second output management circuit which are arranged on the second circuit board, the first output management circuit is electrically connected with the first control module, and the second output management circuit is electrically connected with the second control module.

Further, the circuit module further comprises a first power supply and a second power supply, wherein the first power supply is electrically connected with the first control module, and the second power supply is electrically connected with the second control module;

the third circuit board is provided with a first notch to avoid the first power supply, and the fourth circuit board is provided with a second notch to avoid the second power supply.

Further, the shell is of a cylindrical structure, and the first circuit board and the second circuit board are of disc-shaped structures matched with the shell.

Further, the first circuit board is close to the first end of the shell, the fourth circuit board is close to the second end of the shell, and the second circuit board and the third circuit board are respectively close to inner walls of two sides of the shell in the first direction.

Further, the plug is detachably connected to the first end of the housing.

Further, the charger further comprises a protective sleeve, and the protective sleeve wraps the outer wall of the shell.

Further, the protective sleeve is made of soft rubber.

According to the charger provided by the utility model, the input and output of the charger are respectively arranged on different circuit boards, the first circuit board and the second circuit board are arranged at intervals along the first direction, so that the first circuit board is close to the first end of the shell, the second circuit board is close to the second end of the shell, the structure is compact, the clearance is prevented from being left to waste space, the third circuit board and the fourth circuit board are arranged at intervals along the second direction, the heat dissipation can be separately carried out, the heat dissipation area is increased, the heat dissipation problem is solved, and the third circuit board and the fourth circuit board are separately arranged to enable the heat dissipation to be uniform, balance the temperature, avoid local overheating and improve the stability and the reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without the inventive effort.

Fig. 1 is a schematic structural diagram of a charger according to an embodiment of the present utility model.

Fig. 2 is an exploded view of a charger according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram of the internal structure of the charger according to the embodiment of the present utility model.

Fig. 4 is a schematic view of a first view structure of a circuit module according to an embodiment of the utility model.

Fig. 5 is a schematic diagram of a second view structure of a circuit module according to an embodiment of the utility model.

Fig. 6 is a schematic diagram of a hidden part structure of a circuit module according to an embodiment of the present utility model.

Fig. 7 is a schematic block diagram of a circuit module according to an embodiment of the present utility model.

In the figure: 100. a charger; 10. a housing; 11. a first end; 12. a second end; 20. a circuit module; 21. a first circuit board; 211. an input interface; 22. a second circuit board; 221. a first output interface; 222. a second output interface; 23. a third circuit board; 231. a first notch; 2311. a first inner wall; 2312. a second inner wall; 24. a fourth circuit board; 241. a second notch; 2411. a third inner wall; 2412. a fourth inner wall; 25. a first control module; 251. a first rectifying and filtering circuit; 252. a first control circuit; 253. a first transformer; 254. a first output management circuit; 26. a second control module; 261. a second rectifying and filtering circuit; 262. a second control circuit; 263. a second transformer; 264. a second output management circuit; 27. a first power supply; 28. a second power supply; 30. a plug; 31. pins; 40. and a protective sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1-7, the present utility model proposes a charger 100, comprising a housing 10 and a circuit module 20 disposed inside the housing 10, the housing 10 having a first end 11 and a second end 12 opposite to the first end 11, the first end 11 of the housing 10 being provided with a plug 30, the circuit module 20 comprising a first circuit board 21, a second circuit board 22, a third circuit board 23 and a fourth circuit board 24, the first circuit board 21 being provided with an input interface 211, the input interface 211 being electrically connected with pins 31 of the plug 30, the second circuit board 22 being provided with an output interface, the output interface being exposed to the second end 12 of the housing 10, the third circuit board 23 being provided with a first control module 25, the input end of the first control module 25 is electrically connected with the input interface 211, the output end of the first control module 25 is electrically connected with the output interface, the fourth circuit board 24 is provided with the second control module 26, the input end of the second control module 26 is electrically connected with the input interface 211, the output end of the second control module 26 is electrically connected with the output interface, the first circuit board 21 and the second circuit board 22 are arranged at intervals along a first direction, the third circuit board 23 and the fourth circuit board 24 are arranged at intervals along a second direction, the first direction is perpendicular to the second direction, and the first direction is the arrangement direction between the first end 11 and the second end 12.

In this embodiment, the input and output of the charger 100 are respectively arranged on different circuit boards, and the first circuit board 21 and the second circuit board 22 are arranged at intervals along the first direction, so that the first circuit board 21 is close to the first end 11 of the housing 10, the second circuit board 22 is close to the second end 12 of the housing 10, the structure is compact, the clearance waste space is avoided, the third circuit board 23 and the fourth circuit board 24 are arranged at intervals along the second direction, the heat dissipation can be separately carried out, the heat dissipation area is increased, the heat dissipation problem is solved, and the third circuit board 23 and the fourth circuit board 24 are separately arranged to make the heat dissipation uniform, balance the temperature, avoid local overheating, and improve the stability and reliability.

As an embodiment, the number of output interfaces may be one, and the output end of the first control module 25 and the output end of the second control module 26 are commonly connected to the same output interface.

As another embodiment, the number of output interfaces may be two, where the two output interfaces include a first output interface 221 and a second output interface 222, the first output interface 221 and the second output interface 222 are exposed at the second end 12 of the housing 10, the output end of the first control module 25 is electrically connected to the first output interface 221, and the output end of the second control module 26 is electrically connected to the second output interface 222.

For example, the first control module 25 and the second control module 26 each include devices such as a control IC and a MOS transistor, and when the power devices such as the control IC, the MOS transistor and the transformer work, the arrangement of the third circuit board 23 and the fourth circuit board 24 can make the heat distribution in the enclosed space uniform, and the heat is dissipated through the housing 10 by heat conduction and heat radiation, so as to avoid the influence of the stability and reliability of the charger 100 due to the local overhigh temperature.

In some usage scenarios, heat conducting structures such as heat conducting pads may be disposed on the third circuit board 23 and the fourth circuit board 24, so that the power device contacts the inner wall of the housing 10 through the heat conducting structures to conduct heat away.

In some embodiments, as shown in fig. 3-7, a compartment is defined between the first circuit board 21, the second circuit board 22, the third circuit board 23, and the fourth circuit board 24; the first control module 25 includes a first rectifying and filtering circuit 251, a first control circuit 252 and a first transformer 253, wherein an input end of the first rectifying and filtering circuit 251 is connected to the input interface 211, an output end of the first rectifying and filtering circuit 251 is connected to an input end of the first control circuit 252, an output end of the first control circuit 252 is connected to an input end of the first transformer 253, and an output end of the first transformer 253 is connected to the first output interface 221; the second control module 26 includes a second rectifying and filtering circuit 261, a second control circuit 262 and a second transformer 263, wherein an input end of the second rectifying and filtering circuit 261 is connected to the input interface 211, an output end of the second rectifying and filtering circuit 261 is connected to an input end of the second control circuit 262, an output end of the second control circuit 262 is connected to an input end of the second transformer 263, and an output end of the second transformer 263 is connected to the second output interface 222; the first transformer 253 is disposed on a side of the third circuit board 23 facing the compartment, the second transformer 263 is disposed on a side of the fourth circuit board 24 facing the compartment, and the first transformer 253 and the second transformer 263 are disposed in a staggered manner.

In this embodiment, the first rectifying and filtering circuit 251 and the second rectifying and filtering circuit 261 are used for converting ac power into dc power, for example, bridge rectifying and capacitive filtering circuits are used, the first control circuit 252 is used for forming pulsating dc power at the input end of the first transformer 253 so as to reduce the voltage of the first transformer 253, the second control circuit 262 is used for forming pulsating dc power at the input end of the second transformer 263 so as to reduce the voltage of the second transformer 263, for example, a field effect transistor is used for controlling the on-off of the input end of the transformer so as to form pulsating dc power, and the separation spaces among the first circuit board 21, the second circuit board 22, the third circuit board 23 and the fourth circuit board 24 can be used for accommodating the first transformer 253, the second transformer 263 and the like.

It should be understood that the first rectifying and filtering circuit and the second rectifying and filtering circuit may be the same circuit disposed on the first circuit board, so that the two control circuits share the same rectifying and filtering circuit.

For example, the first transformer 253 is of the type ATQ2315, and the second transformer 263 is of the type ATQ17, however, other types of transformers may be used for the first transformer 253 and the second transformer 263, and the above functions may be achieved.

In some embodiments, the circuit module 20 further includes a first output management circuit 254 and a second output management circuit 264 disposed on the second circuit board 22, the first output management circuit 254 being electrically connected to the first control module 25, and the second output management circuit 264 being electrically connected to the second control module 26. In this embodiment, the first output management circuit 254 is configured to rectify and filter the output of the first transformer 253 again, detect the electric device connected to the first output interface 221, match the charging protocol, input the correct current voltage to the first output interface 221, and the second output management circuit 264 is configured to rectify and filter the output of the second transformer 263 again, detect the electric device connected to the second output interface 222, match the charging protocol, and input the correct current voltage to the second output interface 222.

Illustratively, the first output management circuit 254 is compatible with CC (constant current) and CV (constant voltage) with the second output management circuit 264, while supporting PD2.0/3.0PPS/QC2.0/3.0 fast charge protocols. The first output management circuit 254 and the second output management circuit 264 both integrate functions of rectifying and filtering, charging protocol management, and the like, the first output management circuit 254 is further connected to a first optocoupler to feed back an output signal to the first control circuit 252, and the second output management circuit 264 is further connected to a second optocoupler to feed back an output signal to the second control circuit 262.

The first control circuit 252 adjusts the duty ratio of the pulsating dc current at the input end of the first transformer 253 according to the signal sent by the first optocoupler, so as to adjust the output voltage of the first output interface 221, and the second control circuit 262 adjusts the duty ratio of the pulsating dc current at the input end of the second transformer 263 according to the signal sent by the second optocoupler, so as to adjust the output voltage of the second output interface 222.

Alternatively, the first output interface 221 and the second output interface 222 may be USB interfaces, type-C interfaces, or the like.

In some usage scenarios, the input interface 211 is connected to 100V-240V ac, usually 220V mains supply, through the pin 31 of the plug 30, one path of ac is converted into dc by the first rectifying and filtering circuit 251, and is reduced in voltage by the first control circuit 252 and the first transformer 253, and then the output of the first transformer 253 is rectified and filtered by the first output management circuit 254, and the first output interface 221 is powered according to a preset charging protocol, and the other path of ac is converted into dc by the second rectifying and filtering circuit 261, and is reduced in voltage by the second control circuit 262 and the second transformer 263, and then the output of the second transformer 263 is rectified and filtered by the second output management circuit 264, and is powered by the second output interface 222 according to a preset charging protocol, so as to form two paths of output.

In some embodiments, as shown in fig. 3-6, the circuit module 20 further includes a first power supply 27 and a second power supply 28, the first power supply 27 being electrically connected to the first control module 25, the second power supply 28 being electrically connected to the second control module 26; the third circuit board 23 has a first notch 231 to avoid the first power supply 27, and the fourth circuit board 24 has a second notch 241 to avoid the second power supply 28. In this embodiment, the first power supply 27 and the second power supply 28 are batteries, and the first power supply 27 and the second power supply 28 can be avoided through the arrangement of the first notch 231 and the second notch 241, so that the circuit module 20 has a more compact structure, and space is reasonably utilized, so as to reduce the volume of the charger 100.

In some embodiments, as shown in fig. 6, the first notch 231 has a first inner wall 2311 and a second inner wall 2312, and the first inner wall 2311 and the second inner wall 2312 enclose an L-shaped structure; and/or, the second notch 241 has a third inner wall 2411 and a fourth inner wall 2412, where the third inner wall 2411 and the fourth inner wall 2412 enclose to form an L-shaped structure. In this embodiment, the height of the L-shaped structure formed by the first notch 231 is matched with the height of the first power supply 27, and the height of the L-shaped structure formed by the second notch 241 is matched with the height of the second power supply 28, so as to better avoid the first power supply 27 and the second power supply 28, so that the circuit module 20 is more compact in structure, and space is reasonably utilized, and the volume of the charger 100 is reduced.

In some embodiments, as shown in fig. 1-6, the housing 10 is a cylindrical structure, and the first circuit board 21 and the second circuit board 22 are disc-shaped structures that fit the housing 10. In this embodiment, compared with the rectangular charger 100, the present cylindrical charging head is more popular with users, however, the stacking of the conventional circuit board and electronic components is generally rectangular, the placement of the conventional circuit board and electronic components into the cylindrical charging head housing 10 will result in a larger lateral volume of the entire product, and the space above and below the circuit board will waste much space, with low space utilization, so that the first circuit board 21 and the second circuit board 22 are designed into a disc shape, and can be more attached to the cylindrical housing 10, so as to make the structure compact and reduce the volume of the charger 100.

In some embodiments, as shown in fig. 1-3, the first circuit board 21 is adjacent to the first end 11 of the housing 10, the second circuit board 22 is adjacent to the second end 12 of the housing 10, and the third circuit board 23 and the fourth circuit board 24 are adjacent to two side inner walls of the housing 10 in the second direction, respectively. In the present embodiment, the above arrangement reduces the occupied space of the circuit module 20, and the arrangement close to the inner wall of the housing 10 facilitates heat conduction and dissipates heat.

In some embodiments, the plug 30 is removably attached to the first end 11 of the housing 10. In this embodiment, the plug 30 may be detachably connected to the housing 10 by a fastening structure and/or a magnetic structure and/or a screw and/or a detachable interference connection structure, so as to facilitate the disassembly and assembly of the plug 30.

In some embodiments, as shown in fig. 2, the charger 100 further includes a protective sleeve 40, and the protective sleeve 40 wraps around the outer wall of the housing 10. In the present embodiment, the charger 100 can be protected by the provision of the protective sheath 40.

In some embodiments, the protective sheath 40 is a soft gel material. In this embodiment, the protective sleeve 40 is made of soft rubber, and can better protect the casing 10, so that the comfort level of holding by a user can be improved when the user takes the protective sleeve, and the user experience is improved.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A charger, comprising a housing and a circuit module disposed within the housing, the housing having a first end and a second end opposite the first end, the first end of the housing having a plug;

the circuit module includes:

the second circuit board is provided with an output interface which is exposed out of the second end of the shell;

2. The charger of claim 1 wherein a compartment is defined between said first circuit board, said second circuit board, said third circuit board and said fourth circuit board;

the first control module comprises a first rectifying and filtering circuit, a first control circuit and a first transformer, wherein the input end of the first rectifying and filtering circuit is connected with the input interface, the output end of the first rectifying and filtering circuit is connected with the input end of the first control circuit, the output end of the first control circuit is connected with the input end of the first transformer, the output end of the first transformer is connected with the output interface, and the first transformer is arranged on one side of the third circuit board facing the compartment.

3. The charger of claim 1 wherein a compartment is defined between said first circuit board, said second circuit board, said third circuit board and said fourth circuit board;

the second control module comprises a second rectifying and filtering circuit, a second control circuit and a second transformer, wherein the input end of the second rectifying and filtering circuit is connected with the input interface, the output end of the second rectifying and filtering circuit is connected with the input end of the second control circuit, the output end of the second control circuit is connected with the input end of the second transformer, the output end of the second transformer is connected with the output interface, and the second transformer is arranged on one side of the fourth circuit board facing the compartment.

4. The charger of claim 1 wherein said circuit module further comprises a first output management circuit and a second output management circuit disposed on said second circuit board, said first output management circuit being electrically connected to said first control module and said second output management circuit being electrically connected to said second control module.

5. The charger of claim 1 wherein said circuit module further comprises a first power supply and a second power supply, said first power supply being electrically connected to said first control module and said second power supply being electrically connected to said second control module;

6. The charger of claim 1 wherein said housing is of a cylindrical configuration and said first circuit board and said second circuit board are of a disc-shaped configuration that fits said housing.

7. The charger of claim 1 wherein said first circuit board is adjacent to a first end of said housing, said second circuit board is adjacent to a second end of said housing, and said third circuit board and said fourth circuit board are adjacent to respective side walls of said housing in a second direction.

8. The charger of claim 1 wherein said plug is removably connected to a first end of said housing.

9. The charger of claim 1 further comprising a protective sleeve wrapped around said housing outer wall.

10. The charger of claim 9 wherein said protective sheath is of a soft gel material.