charger

Abstract

The utility model discloses a kind of chargers, charger includes: shell, including base and top shell, top shell is equipped with mounting cavity, base cover is equipped in the opening of mounting cavity, base is equipped with two prongs of interval, two prongs are all inserted into mounting cavity;Circuit board, is installed in mounting cavity, and is equipped with two electrode pieces respectively connected with corresponding prong;Barrier rib, formed in base, and located between two electrode pieces, barrier rib is used to isolate two electrode pieces.By setting barrier rib in base, barrier rib is located between two electrode pieces, due to the existence of barrier rib, even if leakage occurs, barrier rib can prevent electrolyte from shorting two electrode pieces to a certain extent, thereby reducing the risk of electric leakage, fire and melting shell etc., improve safety.

Description

Technical Field

[0001] This utility model relates to the field of charging technology, and in particular to a charger. Background Technology

[0002] Chargers are common household devices used to charge smartphones and other electronic devices. Current chargers are increasingly powerful, using more and more capacitors internally. However, in existing chargers, under abnormally high voltage conditions (exceeding the capacitor's withstand voltage), the capacitors may bulge or even leak. When capacitors leak, it can easily lead to risks such as electrical leakage, fire, and casing meltdown, resulting in poor safety. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a charger that can reduce the risks of leakage, fire, and meltdown, thereby improving safety.

[0004] This utility model provides a charger, which includes: a housing, comprising a base and a top shell, the top shell having an installation cavity, the base covering the opening of the installation cavity, the base having two spaced-apart pins, both of which extend into the installation cavity; a circuit board, mounted in the installation cavity, and having two electrode plates respectively connected to the corresponding pins; and a barrier rib formed in the base and located between the two electrode plates, the barrier rib being used to isolate the two electrode plates.

[0005] The charger provided by this embodiment of the invention has at least the following beneficial effects: By setting a barrier rib in the base, which is located between the two electrode plates, the presence of the barrier rib can prevent the electrolyte from short-circuiting the two electrode plates to a certain extent, even in the event of leakage. This reduces the risk of leakage, fire, and melting, and improves safety.

[0006] In one embodiment of this implementation, the base is provided with a ring rib that abuts against the side wall of the mounting cavity, and the barrier rib is located inside the ring rib, with both ends connected to the ring rib respectively.

[0007] In one embodiment of this implementation, the barrier rib includes a barrier portion, one end of which is connected to the coil rib. The barrier portion is located between the two electrode plates and abuts against one side of the circuit board, while the coil rib abuts against the other side of the circuit board.

[0008] In one embodiment of this implementation, a plurality of support protrusions are formed on the inner side of the coil rib, and the plurality of support protrusions abut against the side of the circuit board opposite to the barrier portion.

[0009] In one embodiment of this implementation, a positioning groove is formed between two adjacent support protrusions, and a portion of the electrode sheet is accommodated in the positioning groove.

[0010] In one embodiment of this implementation, the barrier rib includes a positioning part connected to the barrier portion, one end of the positioning part away from the barrier portion is connected to the ring rib, and the circuit board has a groove that mates with the positioning part.

[0011] In one embodiment of this implementation, the height of the blocking portion protruding relative to the base is higher than the height of the positioning portion protruding relative to the base.

[0012] In one embodiment of this implementation, the rib has a clearance groove, and a portion of the circuit board extends into the clearance groove.

[0013] In one embodiment of this implementation, the circuit board is provided with a capacitor, and the charger includes a liquid-absorbing member that abuts against the capacitor.

[0014] In one embodiment of this implementation, there are multiple capacitors, which are disposed on the same side of the circuit board, and the side of the multiple capacitors facing away from the circuit board is attached to the liquid-absorbing member.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the charger structure according to one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the charger in its disassembled state; Figure 3 yes Figure 1 A schematic diagram of the charger from another perspective in its disassembled state; Figure 4 yes Figure 1 A schematic diagram of the base and related components in a charger; Figure 5 yes Figure 1 A schematic diagram of the base and circuit board in the charger; Figure 6 yes Figure 1 A schematic diagram of the base and circuit board in a charger from another perspective; Figure 7 yes Figure 1 A schematic diagram of the charger's structure after the top cover is hidden.

[0017] Figure label: Charger 100; 10 outer shell; 11 base; 111 pin; 112 rib; 1121 support protrusion; 1122 positioning groove; 1123 clearance groove; 12 top shell; 101 mounting cavity; 1011 side wall; 102 opening; 103 window; Circuit board 20; Electrode plate 21; Recess 201; Capacitor 22; Interface 23; Barrier rib 30; barrier part 31; positioning part 32; Liquid absorption component 40. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a charger 100 according to one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the charger 100 in its disassembled state; Figure 3 yes Figure 1 This is a structural schematic diagram of the charger 100 in its disassembled state from another perspective. This utility model provides a charger 100, which includes a housing 10, a circuit board 20, and a barrier rib 30. The housing 10 includes a base 11 and a top shell 12. The top shell 12 has a mounting cavity 101, and the base 11 covers the opening 102 of the mounting cavity 101. The base 11 has two spaced-apart pins 111, both of which extend into the mounting cavity 101. The circuit board 20 is mounted in the mounting cavity 101 and has two electrode plates 21, each connected to a corresponding pin 111. The barrier rib 30 is formed in the base 11 and located between the two electrode plates 21, serving to isolate the two electrode plates 21.

[0024] In this embodiment, the barrier rib 30 and the base 11 are an integral structure, formed by injection molding. In other embodiments, the barrier rib 30 and the base 11 can also be separate structures, with the barrier rib 30 fixed to the base 11 by means of adhesive, screws, etc.

[0025] Specifically, the two prongs 111 are used to connect to power supply devices such as sockets and power strips. In this embodiment, the top shell 12 has a window 103, and the circuit board 20 has an interface 23 opposite to the window 103. The window 103 is used for data cables to extend into and to be electrically connected to the interface 23, so as to facilitate charging of electronic devices such as smartphones.

[0026] It is understandable that when the charger 100 is in use, it needs to be plugged into a power strip or other power supply device. At this time, the base 11 is located on the bottom side of the top shell 12. If leakage occurs, the electrolyte will flow to the base 11 under the action of gravity, and may even come into contact with the electrode plate 21. However, due to the presence of the barrier rib 30, the barrier rib 30 prevents the electrolyte in contact with the two electrode plates 21 from conducting to each other, thus preventing short circuit.

[0027] By setting a barrier rib 30 on the base 11, the barrier rib 30 is located between the two electrode plates 21. Due to the presence of the barrier rib 30, even if leakage occurs, the barrier rib 30 can prevent the electrolyte from short-circuiting the two electrode plates 21 to a certain extent, thereby reducing the risk of leakage, fire and melting, and improving safety.

[0028] In one embodiment of this implementation, please refer to 3 and Figure 4 , Figure 4 yes Figure 1 The diagram shows the structure of the base 11 and its related components in the charger 100. The base 11 has a coil rib 112 that abuts against the side wall 1011 of the mounting cavity 101. A barrier rib 30 is located inside the coil rib 112, and its two ends are connected to the coil rib 112 respectively. With this arrangement, the barrier rib 30 can divide the interior of the coil rib 112 into two independent chambers, which can effectively isolate the two electrode plates 21.

[0029] In this embodiment, the base 11 and the top shell 12 are fixed by ultrasonic welding. In other embodiments, the base 11 and the top shell 12 can also be fixed by adhesive, threaded connectors, or other means.

[0030] In this embodiment, the rib 112 and the base 11 are an integral structure, which is formed by injection molding.

[0031] In one embodiment of this implementation, please refer to 4. Figure 5 and Figure 6 , Figure 5 yes Figure 1 A schematic diagram of the structure of the base 11 and circuit board 20 in the charger 100; Figure 6 yes Figure 1 The diagram shows the structure of the base 11 and circuit board 20 in the charger 100 from another perspective. The barrier rib 30 includes a barrier portion 31, one end of which is connected to the coil rib 112. The barrier portion 31 is located between the two electrode plates 21 and abuts against one side of the circuit board 20. The coil rib 112 abuts against the other side of the circuit board 20. This configuration allows for the positioning and installation of the circuit board 20 using the barrier rib 30 and the coil rib 112, simplifying the assembly of the circuit board 20.

[0032] In one embodiment of this implementation, please refer to 4. Figure 5 and Figure 6 In order for the rib 112 to fully support the circuit board 20, multiple support protrusions 1121 are formed on the inner side of the rib 112, and the multiple support protrusions 1121 abut against the side of the circuit board 20 facing away from the barrier portion 31.

[0033] In one embodiment of this implementation, please refer to 4.Figure 5 and Figure 6 In order to position and install the electrode sheet 21 by means of the rib 112, a positioning groove 1122 is formed between two adjacent support protrusions 1121, and part of the electrode sheet 21 is accommodated in the positioning groove 1122.

[0034] In this embodiment, there are four supporting protrusions 1121 and two positioning grooves 1122, with the two electrode pieces 21 respectively housed in the corresponding positioning grooves 1122.

[0035] In one embodiment of this implementation, please refer to 4. Figure 5 and Figure 6 The barrier rib 30 includes a positioning part 32 connected to the barrier part 31. One end of the positioning part 32 away from the barrier part 31 is connected to the coil rib 112. The circuit board 20 has a groove 201 that mates with the positioning part 32. With this configuration, the circuit board 20 can be further positioned by the positioning part 32, so that the relative position of the circuit board 20 on the base 11 is fixed.

[0036] In one embodiment of this implementation, please refer to 4. Figure 5 and Figure 6 The height of the barrier portion 31 protruding relative to the base 11 is higher than the height of the positioning portion 32 protruding relative to the base 11. This arrangement allows the barrier portion 31 to abut against one side of the circuit board 20.

[0037] In one embodiment of this implementation, please refer to 4 and Figure 5 The rib 112 has a clearance groove 1123, into which part of the circuit board 20 extends. It can be understood that the clearance groove 1123 can make way for part of the circuit board 20 to facilitate the installation of a larger circuit board 20. In addition, the clearance groove 1123 has a certain positioning function, which can assist in the positioning of the circuit board 20 and reduce the risk of the circuit board 20 shifting.

[0038] In one embodiment of this implementation, please refer to 2 and Figure 7 , Figure 7 yes Figure 1 This is a schematic diagram of the charger 100 after the top cover 12 is concealed. The circuit board 20 houses a capacitor 22, and the charger 100 includes a liquid-absorbing member 40 that abuts against the capacitor 22. It is understood that when the capacitor 22 leaks, the leaked electrolyte can be preferentially absorbed by the liquid-absorbing member 40 and will not flow to the base 11. By promptly absorbing the accidentally leaked electrolyte from the capacitor 22 by the liquid-absorbing member 40, the risks of leakage, fire, and casing meltdown are further reduced, improving safety.

[0039] In one embodiment of this implementation, please refer to 2 and Figure 7The capacitors 22 are multiple, located on the same side of the circuit board 20, with the side of the multiple capacitors 22 facing away from the circuit board 20 in contact with the liquid-absorbing member 40. This arrangement allows the liquid-absorbing member 40 to simultaneously absorb the electrolyte leaking from the multiple capacitors 22, making it more suitable for high-power chargers 100.

[0040] Specifically, the liquid-absorbing component 40 is constructed as liquid-absorbing foam, and the liquid-absorbing foam is coated with adhesive for bonding with multiple capacitors 22.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A charger, characterized in that, include: The outer casing includes a base and a top shell, the top shell having a mounting cavity, the base covering the opening of the mounting cavity, and the base having two spaced-apart prongs, both of which extend into the mounting cavity; A circuit board is mounted in the mounting cavity and is provided with two electrode plates that are respectively connected to the corresponding pins; A barrier rib is formed in the base and located between the two electrode plates, the barrier rib being used to isolate the two electrode plates.

2. The charger according to claim 1, characterized in that, The base is provided with a ring rib that abuts against the side wall of the mounting cavity. The barrier rib is located inside the ring rib and its two ends are respectively connected to the ring rib.

3. The charger according to claim 2, characterized in that, The barrier rib includes a barrier portion, one end of which is connected to the coil rib. The barrier portion is located between the two electrode plates and abuts against one side of the circuit board. The coil rib abuts against the other side of the circuit board.

4. The charger according to claim 3, characterized in that, Multiple support protrusions are formed on the inner side of the rib, and the multiple support protrusions abut against the side of the circuit board opposite to the barrier portion.

5. The charger according to claim 4, characterized in that, A positioning groove is formed between two adjacent support protrusions, and a portion of the electrode sheet is accommodated in the positioning groove.

6. The charger according to claim 3, characterized in that, The barrier rib includes a positioning part connected to the barrier portion. One end of the positioning part away from the barrier portion is connected to the ring rib. The circuit board has a groove that mates with the positioning part.

7. The charger according to claim 6, characterized in that, The height of the barrier portion protruding relative to the base is higher than the height of the positioning portion protruding relative to the base.

8. The charger according to claim 3, characterized in that, The rib has a clearance groove, and part of the circuit board extends into the clearance groove.

9. The charger according to claim 1, characterized in that, The circuit board is provided with a capacitor, and the charger includes a liquid-absorbing component that abuts against the capacitor.

10. The charger according to claim 9, characterized in that, The number of capacitors is multiple, and the multiple capacitors are located on the same side of the circuit board, with the side of the multiple capacitors facing away from the circuit board being attached to the liquid-absorbing member.

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