CN219760697U

CN219760697U - Charging device

Info

Publication number: CN219760697U
Application number: CN202320285711.2U
Authority: CN
Inventors: 谌兴武
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-09-26
Anticipated expiration: 2033-02-13

Abstract

The present disclosure relates to a charging device, the charging device comprising: a charging assembly; the shell is provided with an accommodating space on the inner side; wherein the charging assembly is positioned in the accommodating space; the shell at least comprises a first shell and a second shell, wherein the first shell is positioned on the outer side of the second shell, and a cavity is formed between the first shell and the second shell.

Description

Charging device

Technical Field

The disclosure relates to the technical field of electronic equipment, and in particular relates to a charging device.

Background

With the continuous development and increasing maturity of electronic technology, electronic devices such as mobile phones, tablet computers, portable computers and the like are also indispensable tools in life and work of people, and charging devices are indispensable shelves of electronic devices. The charging device generates a large amount of heat during charging, and therefore, an insulating process is necessary.

The charging device of the related art mostly uses a heat insulating material added into a charger to perform heat insulation, and the heat insulating material needs to be separated from the shell of the charger by more than 1mm to achieve good heat insulating effect. Along with charging device's miniaturization, charging device's inside accommodation space is very limited, and the shell is generally less than 1mm with the distance of heating device, consequently, adds insulating material and can influence the inner structure of charger, causes the assembly difficulty, and because the distance is too little moreover, thermal-insulated effect also can be very poor. In addition, the heat insulating material is generally expensive and has high cost.

Disclosure of Invention

The present disclosure has been made in view of the above-mentioned problems occurring in the related art, and an object of the present disclosure is to provide a charging device that uses a cavity to sufficiently isolate a heat generating device in a case and a charging assembly, thereby achieving a heat insulating effect.

According to a first aspect of the present disclosure, there is provided a charging device including:

a charging assembly;

the shell is provided with an accommodating space on the inner side; wherein the charging assembly is positioned in the accommodating space;

the shell at least comprises a first shell and a second shell, wherein the first shell is positioned on the outer side of the second shell, and a cavity is formed between the first shell and the second shell.

In some embodiments, the first housing is arranged concentric with the second housing;

or alternatively, the process may be performed,

the first housing is arranged eccentrically to the second housing.

In some embodiments, the cavity is filled with air.

In some embodiments, the housing further comprises:

a third shell forming a first end face of the housing and a fourth shell forming a second end face of the housing; wherein the second end face constitutes two opposite outer surfaces of the housing for the first end face.

In some embodiments, the third housing and the fourth housing are in sealing connection with the peripheral surface for forming a liquid seal with the receiving space.

In some embodiments, the charging device comprises:

the plug assembly is connected with the input end of the charging assembly and is used for being connected with a power supply;

and the socket assembly is connected with the output end of the charging assembly and used for being connected with equipment to be charged.

In some embodiments, the plug assembly is exposed through an opening of the first end face and the receptacle assembly is exposed through an opening of the second end face;

or alternatively, the process may be performed,

the plug assembly is exposed through the opening of the second end face, and the socket assembly is exposed through the opening of the first end face.

In some embodiments, the first housing and the second housing have the cavity therebetween having a width of between 0.3mm and 1.2 mm.

In some embodiments, the first housing and the second housing are a one-piece structure.

In some embodiments, a plurality of gas bubbles are formed between the first housing and the second housing, and the space occupied by the gas bubbles forms the cavity.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

by forming the cavity in the housing, heat radiated and conducted by the charging assembly in the receiving space inside the housing can be sufficiently isolated, reducing the temperature of the housing. The heat soaking or heat insulating material is not required to be additionally added in the accommodating space of the shell, the number of parts is reduced, the number of assembly operations is reduced, and the requirement of miniaturization of the charging device is met.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic perspective view of a charging device of the present utility model.

Fig. 2 is another schematic perspective view of the charging device of the present utility model.

Fig. 3 is a schematic top view of the present charging device of the new type.

Fig. 4 is a schematic cross-sectional view of the charging device of the present utility model.

Fig. 5 is another schematic cross-sectional view of the charging device of the present utility model.

Fig. 6 is a schematic cross-sectional view of the housing structure of the present utility model.

Description of the reference numerals

1-a housing; 11-a second housing; 12-a second housing; 13-cavity;

2-a third housing; a 21-socket assembly;

3-a fourth housing; a 31-plug assembly; 4-accommodating space;

100-charging device.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus consistent with some aspects of the disclosure as detailed in the accompanying claims.

In the specification, unless explicitly stated otherwise, the terms "first," "second," "third," "fourth" are used merely for descriptive purposes to distinguish between constituent elements and should not be construed as indicating a sequence. Unless specifically stated otherwise, the terms "connected," "affixed," and the like are to be construed in a broad sense and include, but are not limited to, directly, indirectly, removably "connected," "affixed," and the like.

The charging device is mostly insulated by adding soaking or heat insulating materials inside the shell of the charging device, and the heat insulating materials need to be separated from the shell of the charging device by more than 1mm to achieve good heat insulating effect. However, with miniaturization of the charging device, the accommodating space inside the charging device is very limited, and the distance between the housing and the heating device is generally smaller than 1mm, so that the addition of the heat insulation material can affect the internal structure of the charging device, which results in difficult assembly, and the heat insulation effect is poor due to too small distance. In addition, the heat insulating material is generally expensive and has high cost.

Therefore, the embodiment of the disclosure solves the heat insulation problem by changing the housing structure of the charging device, and does not need to additionally add soaking or heat insulation materials in the accommodating space of the housing, i.e. does not affect the internal structure of the charging device, and simultaneously reduces the cost.

As shown in fig. 1 to 3, a charging device 100 of the present utility model includes: a charging assembly and housing 1;

the inner side of the shell is provided with an accommodating space 4; wherein the charging assembly is positioned in the accommodating space 4;

the housing 1 comprises at least a first shell 11 and a second shell 12, wherein the first shell 11 is positioned outside the second shell 12, and a cavity 13 is formed between the first shell 11 and the second shell 12, as shown in fig. 4 to 6.

The charging device 100 includes, but is not limited to: a mobile charger and other special charging equipment.

The charging device 100 may be a wired charging device or a wireless charging device. The wired charging device will establish a wired charging connection with the target device to be charged. The wireless charging apparatus may include: and the charging coil is used for wirelessly supplying power to the target device.

The charging assembly may be used to charge the target device by the charging apparatus 100. The charging assembly may specifically include: a charging terminal, a conversion circuit connected with the charging terminal, and an output terminal.

The charging terminal may be connected to a power source, and the conversion circuit may be configured to convert a voltage provided by the power source into a voltage required by the target device. For example, the conversion circuit may convert the alternating current of the first voltage to the direct current output of the second voltage.

The housing 1 is generally rectangular in shape, but may be any other shape such as square, cylindrical, etc.

The housing 1 may be made of insulating plastic. The insulating plastic includes, but is not limited to, PC material. The PC material has low heat conductivity coefficient and good heat resistance. And the PC material has good mechanical properties, high strength, good dimensional stability and low creep property. Meanwhile, the PC material has excellent insulating performance, and can maintain stable electrical performance in a humid and high-temperature environment. However, the housing 1 may be made of other materials such as ABS.

The cross-sectional shape of the first housing 11 is adaptively changed according to the shape of the housing 1, for example, when the housing 1 is cylindrical, the cross-section of the first housing 11 is circular in shape. The cross-sectional shape of the second housing 12 may be the same as the cross-sectional shape of the first housing 11 or may be different from the cross-sectional shape of the first housing 11, as long as the cavity 13 can be formed between the first housing 11 and the second housing 12, and the cross-sectional shape of the second housing 12 may be any other shape.

The second housing 12 is located inside the first housing 11, and the cross-sectional area of the second housing 12 is smaller than that of the first housing 11. Thus, there is a gap between the first housing 11 and the second housing 12, which gap constitutes the cavity 13.

The cavity 13 may be filled with air. As shown in Table 1, the thermal conductivity of air is very low, ranging from 0.01W/mK to 0.04W/mK, and thus, the thermal conductivity of air is very poor, and it is difficult to conduct heat, so that it can be used as a good heat insulating material. The air is filled in the cavity 13, so that heat radiated and conducted by the charging assembly in the accommodating space 4 inside the shell 1 can be fully isolated, the temperature of the first shell 11 is effectively reduced, and a good heat insulation effect is achieved. The material filled in the cavity 13 is not necessarily air, but can be any other material with low heat conductivity coefficient, but the filling of the other material may have high requirements on the sealing performance of the cavity 13, so that the manufacturing difficulty is increased; in addition, the price of other materials is relatively high compared with air, and the production cost is increased. Therefore, in consideration of manufacturing easiness, material cost and production cost, air may be selected as a heat insulating material to be filled in the cavity 13 in some possible embodiments, and not only heat insulating performance is good but also cost is low.

TABLE 1 thermal conductivity of different materials

The first housing 11 is arranged concentrically with the second housing 12; alternatively, the first housing 11 is arranged eccentrically to the second housing 12.

The first housing 11 may be arranged concentrically with the second housing 12, that is, the cavities 13 may be uniformly distributed around the inner side of the first housing 11 and the outer side of the second housing 12, so that heat radiated and conducted by the charging assembly may be uniformly and sufficiently isolated.

The first housing 11 may also be arranged eccentrically to the second housing 12, i.e. the width of the cavity 13 at different locations on the inside of the first housing 11 than on the outside of the second housing 12 is different or the cavity 13 is formed only at partial locations.

Not all of the charging assemblies radiate heat outward, and thus, the eccentric arrangement of the first and second cases 11 and 12 may form a cavity having a larger width at a position close to the heat generating device and a cavity having a smaller width at a position far from the heat generating device, or may form a cavity 13 only at a position close to one side of the heat generating device, which may be effective for heat insulation against the heat generating device.

The first housing 11 constitutes at least the peripheral surface of the casing 1.

In order to facilitate the handling of the charging device, the user often touches the peripheral surface of the housing of the charging device, and therefore, the first housing 11 forms at least the peripheral surface of the housing 1, that is, a heat-insulating cavity 13 is formed in the peripheral surface of the housing 1. Thus, when the user touches the charging device, the possibility of scalding is greatly reduced.

In some embodiments, the first housing may also partially form an end face of the charging device.

In an exemplary embodiment, when the charging device is a wireless charging device and the charging device is substantially cylindrical, at least one end surface of the wireless charging device may be formed by the first housing, and the cavity may surround not only a portion corresponding to the circumferential surface of the charging device but also a portion of the cross section.

The housing 1 further comprises: a third casing 2 constituting a first end face of the housing 1 and a fourth casing 3 constituting a second end face of the housing 1; wherein the second end face constitutes two opposite outer surfaces of the housing for the first end face.

The third housing 2 and the fourth housing 3 may also be made of PC material and/or ABS material. The third housing 2 is arranged opposite to the fourth housing 3. The shape of the third housing 2 and the fourth housing 3 is also adaptively changed according to the shape of the casing 1. The shape of the third housing 2 may be different from the shape of the fourth housing 3, and the surface area of the third housing 2 may be different from the surface area of the fourth housing 3. For example, when the third housing 2 and the fourth housing 3 are both circular, and the surface area of the third housing 2 is larger than the surface area of the fourth housing 3, the entire housing 1 has a truncated cone shape. The charging device does not necessarily have the third housing 2 and the fourth housing 3, and for example, when the casing 1 is in an oval shape as a whole, the charging device has only one peripheral surface and does not have the end surface.

The third casing 2 and the fourth casing 4 are in sealing connection with the peripheral surface, and are used for enabling the accommodating space 4 to form liquid sealing.

In order to prevent the liquid from entering the accommodating space 4 inside the casing 1 and damaging the charging assembly therein, the third casing 2 and the fourth casing 3 may be in sealing connection with the peripheral surface of the charging device by means of ultrasonic sealing, sealing member clamping, adhesive bonding, etc., so that the accommodating space 4 forms a liquid seal. Compared with the modes of sealing by sealing elements, bonding sealing and the like, the ultrasonic sealing mode is simpler and more efficient to operate, better in stability and lower in cost under the condition of reaching the same shell sealing standard.

The charging device further includes:

the plug assembly 31 is connected with the input end of the charging assembly and is used for being connected with a power supply;

and the socket assembly 21 is connected with the output end of the charging assembly and is used for being connected with equipment to be charged.

The plug assembly 31 comprises at least two metal inserting sheets for connecting with a zero line and a fire line in a power supply; the plug assembly may further include a third metal blade for connection to a ground wire in the power supply.

The receptacle assembly 21 includes at least one output interface, which may be a USB interface, a TYPE-C interface, a Micro-B interface, or the like.

The device to be charged may be an electronic device such as a mobile phone, a notebook, or a tablet computer.

The plug assembly 31 is exposed through the opening of the first end face, and the receptacle assembly 21 is exposed through the opening of the second end face; alternatively, the plug assembly 31 is exposed through the opening of the second end face, and the receptacle assembly 21 is exposed through the opening of the first end face.

The plug assembly 31 and the socket assembly 21 are exposed through the end face of the housing 1 for connection with a power source and a device to be charged. In some embodiments, the charging device may further include a dust-proof component (e.g., a dust plug) that protects the socket component 21 and a protective component (e.g., a protective shell) that protects the plug component 31.

The thickness of the housing is at least greater than 1mm.

The thickness of the housing 1 may be adapted to the width of the cavity 13, but in order to facilitate the formation of the cavity 13 in the housing 1, the thickness of the housing 1 should not be too thin, at least larger than 1mm.

The first housing 11 and the second housing 12 have the cavity 13 therebetween with a width of between 0.3mm and 1.2 mm.

The width of the cavity 13 is not too large, which would affect the overall size of the charging device, resulting in an oversized size that is not portable. The width of the cavity 13 is not too small, and if too small, it is difficult to sufficiently isolate heat, thereby affecting the heat insulation effect. The width of the cavity 13 is thus between 0.3mm and 1.2mm, for example between 0.5mm and 1mm.

The first housing 11 and the second housing 12 are in a connected structure.

The first housing 11 and the second housing 12 and the cavity 13 between the first housing and the second housing may be integrally formed by corresponding molds. It is also possible to inject gas into the housing 1 by a foaming process, the gas bubbles dividing the housing 1 into the first housing 11 and the second housing 12, i.e. a plurality of gas bubbles are formed between the first housing and the second housing, and the space occupied by the gas bubbles forms a cavity 13 between the first housing 11 and the second housing 12. The first shell and the second shell prepared by the two process methods are of a connected structure, and no extra assembly step is added. Of course, any other process may be used to separately prepare the first housing 11 and the second housing 12 and then assemble, but the first housing 11 and the second housing 12 are exemplified as a one-piece structure in view of ease of manufacture, simplicity of process, and the like.

By changing the structure of the housing 1, the heat source can be effectively insulated without additionally placing a soaking or heat insulating material in the accommodation space 4 inside the housing 1. Compared with the use of heat insulating materials, the charging device has better heat insulating effect, saves the consumable cost of the heat insulating materials, reduces the number of parts, reduces the number of assembly operations, and meets the miniaturization requirement of the charging device.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A charging device, characterized in that the charging device comprises:

a charging assembly;

2. The charging device according to claim 1, wherein,

the first housing is arranged concentrically with the second housing;

or alternatively, the process may be performed,

the first housing is arranged eccentrically to the second housing.

3. The charging device according to claim 1, wherein,

the cavity is filled with air.

4. A charging device according to any one of claims 1 to 3, wherein the housing further comprises:

5. The charging device according to claim 4, wherein,

the third shell and the fourth shell are in sealing connection with the peripheral surface and are used for enabling the accommodating space to form liquid sealing.

6. The charging device according to claim 1, characterized in that the charging device comprises:

7. The charging device according to claim 6, wherein,

the plug assembly is exposed through the opening of the first end face, and the socket assembly is exposed through the opening of the second end face;

or alternatively, the process may be performed,

8. The charging device according to claim 1, wherein,

the first housing and the second housing have the cavity therebetween having a width of between 0.3mm and 1.2 mm.

9. The charging device according to claim 1, wherein,

the first shell and the second shell are of a connected structure.

10. The charging device according to claim 1, wherein,

a plurality of gas bubbles are formed between the first shell and the second shell, and the space occupied by the gas bubbles forms the cavity.