CN219554614U

CN219554614U - Charger

Info

Publication number: CN219554614U
Application number: CN202320131802.0U
Authority: CN
Inventors: 赵智杰; 林利
Original assignee: Shanghai Chang Krypton Technology Co ltd
Current assignee: Shanghai Chang Krypton Technology Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-08-18
Anticipated expiration: 2033-01-18

Abstract

The utility model discloses a charger. The charger comprises: the power board is arranged in the accommodating space, and a connecting part is arranged on the shell; the housing is provided with a first air inlet and a second air inlet, the first air inlet is arranged on one side of the housing which is the same as the connecting part, a first fan and a second fan are arranged in the accommodating space, the projection of the first fan on the side of the connecting part of the housing is at least overlapped with the first air inlet, and the second fan is arranged between the second air inlet and the power board; the shell is also provided with a first air outlet and a second air outlet, and the second air outlet and the second air inlet are respectively positioned on two opposite sides of the axial direction of the power board. Through the mode, the battery pack and the charger can simultaneously reduce the temperature inside the battery pack and the charger by using the two fans, so that the battery cell is prevented from overheating, and the charging efficiency is effectively improved.

Description

Charger

Technical Field

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

Background

The electric tools used in life, such as mower, pruner and other electric garden tools and electric operation machines such as electric drill and bolt cutter, are all composed of a battery pack which is a power element and provided with a plurality of rechargeable electric cores, when the electric quantity of the electric core of the battery pack is insufficient, the battery pack needs to be inserted into a special charger for charging, heat can be generated by the electric core and a PCBA (printed circuit board) inside the charger in the charging process, and the heat can cause the electric core to overheat, so that the charging efficiency is reduced, and the charging time is prolonged.

For example, a fast heat dissipation charger with publication number CN217935155U effectively improves the heat dissipation speed of the charger itself by installing a heat dissipation fan, but the problem of overheat of the battery cell still exists.

Disclosure of Invention

To overcome the above drawbacks, the present utility model aims to: the charger is simple in structure, stable and reliable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a charger, comprising: the power board is arranged in the accommodating space, and a connecting part is arranged on the shell;

the shell is provided with a first air inlet and a second air inlet, the first air inlet is arranged on one side of the shell which is the same as the connecting part, the second air inlet is arranged at one axial end of the power board,

a first fan and a second fan are arranged in the accommodating space, the projection of the first fan on the side of the connecting part of the shell is at least overlapped with the first air inlet, and the second fan is arranged between the second air inlet and the power board;

the power board is characterized in that a first air outlet and a second air outlet are further formed in the shell, the first air outlet is arranged on the axial side edge of the shell, and the second air outlet and the second air inlet are respectively located on two opposite axial sides of the power board. Through such design, the heat of battery package is inhaled to first fan, dispels the heat to the battery package, and the second fan blows the cold air to the power board, dispels the heat to the power board, effectively improves radiating efficiency.

In a preferred embodiment, the connecting part comprises a connecting plate arranged on the shell, and the battery inserting sheet is arranged on the connecting plate. Through the design, the battery pack can be connected to the battery inserting sheet, and charging of the battery pack is achieved.

In a preferred embodiment, an airflow guiding groove is disposed in the accommodating space, one end of the airflow guiding groove is connected to the first air inlet, the first fan is disposed between the first air inlet and the airflow guiding groove, the other end of the airflow guiding groove is connected to the first air outlet, and air flowing from the first air inlet is guided from the first fan to the first air outlet. Through the design, the hot air sucked from the first air inlet can be guided out of the charger, so that the hot air is prevented from filling the accommodating space of the charger, and the temperature of the charger is prevented from rising.

In a preferred embodiment, a limiting plate is arranged on one side of the first air outlet, which is located on the accommodating space, and the limiting plate is connected with the air flow guiding groove. Through the design, the hot air flow can be prevented from being dissipated into the charger and mixed with cold air, and the heat dissipation efficiency is reduced.

In a preferred embodiment, the first fan is parallel to the first air inlet, and the air outlet side of the first fan faces away from the first air inlet. Through the design of the first fan, heat generated in the charging process of the battery pack can be pumped, and the battery pack can be effectively radiated.

In a preferred embodiment, the second fan is perpendicular to an axial extension line of the power board, and an air outlet side of the second fan faces the power board. Through the design, cold air blown out by the first fan can flow through the whole power board, and the temperature of the whole power board is reduced.

In a preferred embodiment, the housing includes a first housing and a second housing that are cooperatively disposed, and the first housing and the second housing are assembled to form the accommodating space. The design can facilitate assembly and disassembly of components, and is convenient to operate.

Advantageous effects

According to the charger provided by the utility model, the heat of the battery pack is sucked through the first fan, the hot air flow is led out of the charger through the ventilating duct, so that the temperature of the battery pack is effectively reduced, meanwhile, the external cold air is sucked into the charger through the second fan, the power board in the charger is radiated, the temperature of the charger is effectively reduced, the radiating efficiency is higher, the overheat of the charger and the battery core is prevented, the charging efficiency is effectively improved, and the charging time is shortened.

Drawings

The accompanying drawings are included to provide an understanding of the technical aspects of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present disclosure and together with the embodiments of the disclosure, not to limit the technical aspects of the present disclosure. The shapes and sizes of the various components in the drawings are not to scale, and are intended to illustrate the present utility model only.

Fig. 1 is a schematic perspective view of a charger according to an embodiment of the present utility model;

FIG. 2 is a perspective view of another view of a charger according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a charger according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an exploded view of the charger of FIG. 3;

fig. 5 is a schematic structural view of a first housing of the charger according to the embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a hidden second housing of the charger according to the embodiment of the present utility model.

Reference numerals:

1. a housing; 11. a first housing; 12. a second housing; 13. an accommodation space; 2. a mounting part; 21. a mounting plate; 22. a battery insert; 3. a power board; 4. a first air inlet; 5. a first fan; 6. a first air outlet; 61. a limiting plate; 7. a second air inlet; 71. a baffle plate; 8. a second fan; 9. a second air outlet; 10. and an air flow guiding groove.

Detailed Description

The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. The implementation conditions employed in the examples may be further adjusted as in the case of the specific manufacturer, and the implementation conditions not specified are typically those in routine experiments.

The charger according to the present utility model for matching with and charging a power tool will be described with reference to the accompanying drawings.

As shown in fig. 1, 3 and 4, a charger includes a housing 1, the interior of the housing 1 is hollow to form an accommodating space 13, in this embodiment, the housing 1 includes a first housing 11 and a second housing 12 assembled by screws, an accommodating space 13 is formed between the first housing 11 and the second housing 12, a power board 3 is disposed in the accommodating space 13, the power board 3 is fixed inside the housing 1 by screws, and the power board 3 is located in a middle position of the accommodating space 13.

As shown in fig. 1 and 2, the outer side of the housing 1 is provided with a mounting portion 2, in this embodiment, the mounting portion 2 is provided on the first housing 11, the mounting portion 2 includes a mounting plate 21 fixed on the housing 1 by screws, the outer side of the mounting plate 21 is provided with a battery insert 22, and the battery insert 22 is connected with an external battery pack to complete charging.

As shown in fig. 1, fig. 4 and fig. 5, the first air inlet 4 is formed in the housing 1, the first air inlet 4 and the mounting portion 2 are disposed on the housing 1 on the same side, in this embodiment, all the first air inlets 4 are disposed on the first housing 11, the first air inlet 4 is adjacent to the mounting portion 2, a plurality of grids are disposed on the first air inlet 4 in an aligned manner, a plurality of through holes are disposed in cooperation with the grids, when the battery pack is disposed on the mounting portion 2, heat of the battery pack is transferred to the inside of the charger through the through holes of the first air inlet 4, the first fan 5 is disposed in the accommodating space 13 at a position corresponding to the first air inlet 4, the first fan 5 is parallel to the first air inlet 4, the air outlet side of the first fan 5 is opposite to the first air inlet 6, and the projection of the first fan 5 on the connecting portion side of the housing 11 is at least overlapped with the first air inlet 4.

As shown in fig. 1, fig. 4 and fig. 5, the first air outlet 6 is disposed at two axial sides of the housing 1 opposite to the first air inlet 4, the first air inlet 4 is communicated with the first air outlet 6 through the air flow guiding groove 10, the first fan 5 is disposed between the first air inlet 4 and the air flow guiding groove 10, the air outlet side of the first fan 5 corresponds to the air flow guiding groove 10, the limiting plate 61 is disposed at one side of the accommodating space 13, the limiting plate 61 is communicated with the air flow guiding groove 10, the air flow is guided, the first fan 5 sucks the hot air flow from the through hole of the first air inlet 4, then the air flow is guided to the first air outlet 6 by the air flow guiding groove 10, the limiting plate 61 is guided out of the charger, the hot air flow is effectively prevented from dispersing inside the charger, the hot air flow is intensively conducted to the outside of the charger, the inside of the charger is prevented from being full of the charger, the temperature inside the charger is increased, the heat generated by the battery pack is timely dispersed, the heat generated by the battery pack is effectively reduced, and the charging efficiency is improved.

As shown in fig. 2, fig. 4 and fig. 6, the housing 1 is further provided with a second air inlet 7, the second air inlet 7 is disposed at one axial end of the power board 3, in this embodiment, the second air inlet 7 is disposed at one end of the second housing 12, a second fan 8 is further disposed in the accommodating space 13, the second fan 8 is disposed between the second air inlet 7 and the power board 3, an axial extension line of the second fan 8 and the power board 3 is kept perpendicular, an air outlet side of the second fan 8 faces the power board 3 to ensure that a cold air flow blown by the second fan 5 flows through the power board 3, the temperature of the power board 3 is effectively reduced, a baffle 71 is disposed at a side, away from the second air inlet 7, of the second fan 8 is inclined at a certain angle towards the direction of the second air inlet 7, a cold air flow of external air is input from the second air inlet 7, the second fan 5 sucks the cold air flow and blows the power board, the baffle 71 plays a guiding role in guiding the air flow, and the cold air flow sucked from the second air inlet 7 is gathered and guided to the second fan 8.

As shown in fig. 2, fig. 4 and fig. 6, the casing 1 is further provided with a second air outlet 9, the second air outlet 9 is disposed at one side of the power board away from the second air inlet 7, in this embodiment, the second air inlet 7 and the second air outlet 9 are disposed at two opposite ends of the second casing 12, so as to ensure that cold air flow can flow through the whole power board 3, improve the cooling efficiency of the power board 3, the external cold air flow flows into the charger from the second air inlet 7, and under the guiding action of the second fan 8 and the baffle 71, the cold air flow flows through the power board 3 and then is discharged out of the charger through the second air outlet 9, in this embodiment, both the second air inlet and the second air outlet are disposed as strip-shaped through holes, so that the air inlet and the air outlet of cold air are effectively ensured, and the strip-shaped through hole area at the second air outlet is greater than the strip-shaped through hole area at the second air inlet.

Working principle:

install the battery package on the installation department 2 of casing 1, first fan 5 inhales the heat of battery package from first air intake 4, the hot air current flows to first air outlet 4 from the air current guide slot 10, heat dissipation of battery package is realized to outside the heat direction of battery package to the charger, reduce the temperature of battery package, simultaneously, second fan 8 inhales outside cold air current from second air intake 7, blow the cold air current to power board 3, cold air current flows through power board 3 after flowing out from second air outlet 9, the cold air current carries out effective heat dissipation to power board 3, reduce the inside temperature of charger, effectively prevent battery package and charger overheat, improve charging efficiency, and the charge time has been shortened.

It should be noted that, in the foregoing embodiments, the technical features such as "the housing", "the first air inlet", "the first fan", "the first air outlet", "the second air inlet", "the second fan", "the second air outlet" may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the foregoing embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description of the present specification.

The above embodiments are provided to illustrate the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement the same according to the present utility model, not to limit the scope of the present utility model. All equivalent changes or modifications made by the spirit of the utility model are intended to be covered by the scope of the utility model.

Claims

1. A charger, comprising:

the power board is arranged in the accommodating space, and a connecting part is arranged on the shell;

the power board is characterized in that a first air outlet and a second air outlet are further formed in the shell, the first air outlet is arranged on the axial side edge of the shell, and the second air outlet and the second air inlet are respectively located on two opposite axial sides of the power board.

2. A charger as claimed in claim 1, wherein,

the connecting portion comprises a connecting plate arranged on the shell, a battery inserting piece is arranged on the connecting plate, and the battery inserting piece is connected with the battery pack.

3. A charger as claimed in claim 1, wherein,

the air inlet is arranged in the accommodating space, one end of the air inlet is communicated with the air inlet, the first fan is arranged between the air inlet and the air inlet, the other end of the air inlet is communicated with the air outlet, and air flowing in from the air inlet is guided to the air outlet from the first fan.

4. The charger of claim 3 wherein the battery charger,

and a limiting plate is arranged on one side of the first air outlet, which is positioned in the accommodating space, and the limiting plate is connected with the air flow guide groove.

5. A charger as claimed in claim 1, wherein,

the first fan is parallel to the first air inlet, and the air outlet side of the first fan faces away from the first air inlet.

6. A charger as claimed in claim 1, wherein,

the second fan is perpendicular to the axial extension line of the power board, and the air outlet side of the second fan faces the power board.

7. A charger as claimed in claim 1, wherein,

one side of the second fan, which is far away from the second air inlet, is provided with a baffle, and one end of the baffle, which is far away from the power board, is inclined at a certain angle towards the direction of the second air inlet.

8. A charger as claimed in claim 1, wherein,

the shell comprises a first shell and a second shell which are arranged in a matched mode, and the first shell and the second shell are assembled to form the accommodating space.