CN112750566B

CN112750566B - Charging wire and charger

Info

Publication number: CN112750566B
Application number: CN202011582754.4A
Authority: CN
Inventors: 唐娜; 胡广; 赵庆宏
Original assignee: Luxshare Electronic Technology Kunshan Ltd
Current assignee: Luxshare Electronic Technology Kunshan Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2022-05-20
Anticipated expiration: 2040-12-28
Also published as: CN112750566A

Abstract

The embodiment of the invention provides a charging wire and a charger, wherein the charging wire comprises a cable layer and a heat dissipation layer wrapping the cable layer, heat dissipation liquid is arranged in the heat dissipation layer, and heat transfer and transmission are realized through gas-liquid circulation of the heat dissipation liquid, so that heat generated in the charging process can be effectively dissipated, and the charging wire has the advantages of low cost and good heat dissipation.

Description

Charging wire and charger

Technical Field

The invention relates to the technical field of charging connection, in particular to a charging wire and a charger.

Background

Along with the development of electronic intelligent products, the performance of the products is continuously enhanced, and the functions are more and more abundant. This makes people use the time of electronic product continuously increasing, and whether the product electric quantity is durable or not becomes one of the selling points of measuring the product. In order to provide better use experience for users, it is also a trend to configure a fast charger for a product in addition to increasing the self-power storage capacity of the product. Although the current fast chargers are divided into fast in-line chargers and fast wireless chargers, the fast in-line chargers are favored by the requirement for efficient charging, and full charging of products by using fragment time can be realized.

However, the problem of heat generation of the charger is also solved while the requirement of quick charging is met, and the service life of the charger is influenced due to the fact that too high heat is not timely dissipated. In the existing charger, the selection of special materials such as aluminum foil, metal braided fabric and thermoplastic elastomer outer coating of the internal heat dissipation structure of the charging wire increases the overall cost of the charger. On the other hand, the existing charging wire mainly controls the charging mode by means of a built-in chip of the two-end connector so as to control the generation of heat, so that the existing charging wire has limited heat dissipation capacity for the generated heat.

Disclosure of Invention

In view of this, the present invention provides a charging cord and a charger, which can effectively dissipate heat generated during charging.

In a first aspect, an embodiment of the present invention provides a charging cord, including:

a cable layer; and

the cable layer is wrapped by the heat dissipation layer, and heat dissipation liquid is arranged in the heat dissipation layer.

Further, the cable layer includes:

a cable;

the cable is covered outside the cable, and a gap is formed between the cable and the gap, and the gap forms a first heat channel.

Further, the heat dissipation layer includes:

a charging wire outer cover;

the first adsorption layer covers the inner wall of the charging wire outer cover; and

and the second adsorption layer is covered on the outer wall of the cable jacket, a gap is formed between the second adsorption layer and the first adsorption layer, the gap forms a second heat channel, and the heat dissipation liquid is arranged in the second heat channel.

Further, both ends of the second heat channel are closed.

Further, the cable outer cover and the charging wire outer cover are made of waterproof materials.

Further, the first adsorption layer and the second adsorption layer are adsorption knitted fabrics.

Further, the heat dissipation liquid is ethanol.

Further, both ends of the charging wire have connector assemblies, the connector assemblies include:

a housing; and

a connector body at least partially disposed within the housing, including a built-in chip;

wherein, the casing is provided with a plurality of louvres.

Furthermore, two ends of the first heat channel are respectively communicated with the heat dissipation holes.

In a second aspect, an embodiment of the present invention further provides a charger, where the charger includes:

the charging cord of the first aspect; and

the charging head is connected with the charging wire and comprises a shell and a temperature control module;

the temperature control module is arranged in the shell and comprises a high-frequency isolation transformer, an intelligent temperature control circuit board and a capacitor;

the shell is provided with a plurality of heat dissipation holes.

The charging wire comprises a cable layer and a heat dissipation layer wrapping the cable layer, wherein the heat dissipation layer is internally provided with heat dissipation liquid, and heat transfer and transmission are realized through gas-liquid circulation of the heat dissipation liquid, so that heat generated in the charging process can be effectively dissipated, and the charging wire has the advantages of low cost and good heat dissipation.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

figure 1 is a schematic view in partial cross-section of a charging cord of a first embodiment of the invention;

figure 2 is an enlarged cross-sectional schematic view of a charging cord according to a first embodiment of the present invention;

fig. 3 is a schematic perspective view of a charging cord according to a first embodiment of the present invention;

fig. 4 is a schematic perspective view of the charging wire according to another angle in the first embodiment of the present invention;

fig. 5 is a schematic structural view of a charger according to a second embodiment of the present invention;

fig. 6 is a schematic structural view of a charging head of a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a charger according to another angle in the second embodiment of the present invention.

Description of reference numerals:

1-a cable layer; 11-a cable; 12-cable jacket; 2-a heat dissipation layer; 21-charging wire outer cover; 22-a first adsorption layer; 23-a second adsorption layer; 3. 4-a connector assembly; 31. 41, B1-heat dissipation holes; a-a first heat channel; b-a second heat channel; a-a charging wire; b-a charging head.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" and "directly between," "adjacent" and "directly adjacent," etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Spatially relative terms, such as "inner," "outer," "below," "beneath," "lower," "below," "upper" and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1-4 are schematic diagrams of a charging cord a according to a first embodiment of the present invention, which includes a cable layer 1 and a heat dissipation layer 2, as shown in fig. 1-4. Wherein, the heat dissipation layer 2 wraps the cable layer 1, and the heat dissipation liquid is arranged in the heat dissipation layer 2. In the present embodiment, the heat dissipating liquid is ethanol, and other liquid with a low boiling point, such as acetone, may be used. When charging wire A charges, the heat that cable layer 1 produced distributes away through heat dissipation layer 2, also promptly, takes place the gas-liquid circulation through the low radiating liquid of boiling point, realizes thermal transfer and transmission to distribute away cable layer 1's heat.

Specifically, as shown in fig. 2, the cable layer 1 of the present embodiment includes a cable 11 and a cable jacket 12. Wherein the cable outer cover 12 is wrapped around the cable 11, and a gap is provided between the cable outer cover 12 and the cable 11, the gap forming a first heat channel a. Specifically, the end of the cable jacket 12 is spaced apart from the cable 11, so that a gap between the cable jacket 12 and the cable 11, i.e., a first heat path a, is formed. When charging is carried out by using the charging wire A, the cable 11 generates heat, part of the heat is transmitted to the cable outer cover 12, and then heat is dissipated through the heat dissipation layer 2. Another part of the heat is transferred through the first heat path a to be radiated. The charging wire A realizes effective heat dissipation through the cooperation of the heat dissipation layer 2 and the first heat channel a.

Further, in the present embodiment, the heat dissipation layer 2 includes a charge-off coating 21, a first adsorption layer 22, and a second adsorption layer 23. The first adsorption layer 22 covers the inner wall of the charging cable outer cover 21, and the second adsorption layer 23 covers the outer wall of the cable outer cover 12. The first adsorption layer 22 and the second adsorption layer 23 have a gap therebetween, the gap forms a second heat passage b, and the heat dissipation liquid is disposed in the second heat passage b and performs effective heat dissipation by achieving gas-liquid two-phase state conversion in the second heat passage b. Specifically, the ends of the cable jacket 12 and the charging cable jacket 21 are spaced apart from each other, so that a gap between the first adsorption layer 22 and the second adsorption layer 23, i.e., a second heat path b, is formed.

The cable jacket 12 and the charging cable jacket 21 are made of a material having both air-tightness and liquid-tightness, and both ends of the second heat path b are closed to prevent the heat dissipation liquid from leaking. In this embodiment, EPDM (Ethylene Propylene Diene Monomer) is used for the cable jacket 12 and the charging cable jacket 21, and therefore, the cable jacket is excellent in heat resistance, air-tightness, and liquid-tightness, and is inexpensive to manufacture. On the other hand, the first adsorption layer 22 and the second adsorption layer 23 are adsorption knitted fabrics, and since the knitted fabrics have a large inner surface area and a large force field strength, they have strong adsorption properties, and it is easily understood that gas is more easily adsorbed than liquid.

As shown in fig. 3-4, in the present embodiment, both ends of the charging cord a

have connector assemblies

3, 4, and the

connector assemblies

3, 4 include a housing and a connector body. The connector body includes a built-in chip and is at least partially disposed within the housing. The built-in chip is used for intelligently starting the trickle mode when the electric quantity is charged to a certain percentage, reducing the charging temperature, realizing auxiliary heat dissipation and prolonging the service life of the battery of the product.

Furthermore, when the charging wire a is used for charging, the two ends of the charging wire a and the connector assemblies 3 and 4 firstly generate heat and the temperature is firstly increased, so that the heat generated by the heat dissipation liquid in the two ends of the heat dissipation layer 2 is firstly absorbed and vaporized, the temperature of the two ends of the second heat channel b is firstly increased, the temperature of the middle part of the second heat channel b is relatively low, so that the hot air at the two ends of the second heat channel b moves towards the middle, at the moment, part of the heat generated at the two ends is dissipated by the charging wire 21, the rest of the heat flows towards the middle area of the second heat channel b along with the air, during the flowing process, because the temperature of the middle area of the second heat channel b is low, the hot air flowing to the middle area is liquefied when cooled, and wets the first adsorption layer 22 and the second adsorption layer 23 in the middle area, and because the heat dissipation liquid at the two ends of the first adsorption layer 22 and the second adsorption layer 23 is vaporized, so that the heat dissipation liquid is reduced, make the radiating liquid of first adsorbed layer 22 and second adsorbed layer 23 middle zone along first adsorbed layer 22 and second adsorbed layer 23 towards both ends flow to absorb the heat at both ends and vaporize once more, and then repeat above-mentioned process, realize in time absorbing and giving off thermal, improve radiating effect, can last and the efficient dispel the heat through the above-mentioned in-process of circulation, satisfy the heat dissipation demand that current power fills soon.

In the process that the vaporized heat dissipation liquid flows towards the middle area of the second heat channel b, part of heat can be dissipated by the charging wire 21, so that heat is prevented from being concentrated in the second heat channel b, and the heat dissipation effect is enhanced.

On the other hand, the

connector assemblies

3 and 4 are provided with a plurality of heat dissipation holes 31 and 41, and two ends of the first heat channel a are respectively communicated with the heat dissipation holes 31 and 41. When using charging wire A to charge, specifically to a certain moment, the heat that transmits to first heat channel a makes inside air temperature rise, and pressure increase to make the air flow out through the

louvre

31, 41 that communicate first heat channel a, and take the heat out, realize the heat dissipation.

Fig. 5 to 7 are schematic diagrams of a charger according to a second embodiment of the present invention, and as shown in fig. 5 to 7, the charger according to the present embodiment includes a charging wire a and a charging head B according to the first embodiment. The structure of the charging wire a is not described herein again. Charging head B connects charging wire A, including shell and accuse temperature module. The temperature control module is arranged in the shell and comprises a high-frequency isolation transformer, an intelligent temperature control circuit board and a capacitor, the energy efficiency conversion rate is improved, the loss is reduced, and the charging head B of the charger is not prone to heating when the charger is charged. In addition, the charging head B is made of flame-retardant polycarbonate and has good flame retardance, so that the charger is safe and reliable.

Furthermore, a plurality of heat dissipation holes B1 are formed in the shell. When the charger of the embodiment is used for charging, the heat generated by the charging head B can be dissipated through the heat dissipation hole B1.

It should be understood that the heat dissipation holes 31, 42, B1 of the embodiment of the present invention are disposed on the connection end surface, that is, on the side where the connector assembly and the charging head B have the connection interface, and may be disposed on other surfaces as an alternative embodiment, and the number and the arrangement are not limited.

It should also be understood that the charging cord a and the charging head B of the embodiment of the present invention are designed to be detachable structures, and as an alternative, the charging cord a and the charging head B may also be configured to be an integrated structure.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A charging cord, comprising:

a cable layer (1) comprising a cable (11) and a cable jacket (12) wrapping the cable (11), wherein a gap is arranged between the cable (11) and the cable jacket (12), and the gap forms a first heat channel (a); and

the heat dissipation layer (2) wraps the cable layer (1), and heat dissipation liquid with a low boiling point is arranged in the heat dissipation layer (2);

wherein the heat dissipation layer (2) comprises:

a charging wire jacket (21);

the first adsorption layer (22) covers the inner wall of the charging wire outer cover (21); and

and a second adsorption layer (23) covering the outer wall of the cable jacket (12) and having a gap with the first adsorption layer (22), the gap forming a second heat channel (b) in which the heat dissipation liquid is disposed.

2. The charging cord according to claim 1, characterized in that the second heat channel (b) is closed at both ends.

3. The charging cord according to claim 1, characterized in that the cable outer cover (12) and the charging cord outer cover (21) are made of waterproof material.

4. The charging wire according to claim 1, characterized in that the first and second absorbent layers (22, 23) are absorbent braids.

5. The charging cord of claim 1, wherein the heat dissipating liquid is ethanol.

6. Charging cord according to claim 1, characterized in that both ends of the charging cord have a connector assembly (3, 4), the connector assembly (3, 4) comprising:

a housing; and

wherein the housing is provided with a plurality of heat dissipation holes (31, 41).

7. The charging cord according to claim 6, characterized in that both ends of the first heat channel (a) communicate with the heat dissipation holes (31, 41), respectively.

8. A charger, comprising:

the charging wire (A) according to any of claims 1-7; and

the charging head (B) is connected with the charging wire (A) and comprises a shell and a temperature control module;

the housing is provided with a plurality of heat dissipation holes (B1).