Docking station with temperature warning function

Abstract

The docking station with the temperature warning function comprises a metal shell, a circuit board is installed in the metal shell, a plurality of USB interfaces are formed in the circuit board, through holes corresponding to the USB interfaces in a one-to-one mode are formed in the metal shell, and identification positions are arranged on the metal shell. The mark is coated with a thermochromic coating; the surface of the circuit board is provided with a heat-conducting fin through an insulating heat-conducting glue layer, and the back side of the heat-conducting fin is in contact with the metal shell; according to the docking station, the mark position is arranged on the metal shell, the mark position is coated with the thermochromic coating, the temperature of the metal shell can be known through the color changing degree of the thermochromic coating, the temperature of an internal circuit can be obtained by converting the temperature of the metal shell, and therefore temperature detection of the docking station is achieved; and an electronic device for temperature measurement does not need to be arranged, so that the production cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field related to expansion docks, and in particular to an expansion dock with a temperature warning function. Background Art

[0002] The docking station is an external device designed for smart devices (such as computers). The docking station is equipped with multiple different types of data input interfaces. When the docking station is connected to the smart device, the smart device is connected to multiple different types of external devices through the docking station to expand the port functions of the smart device. At present, from the perspective of the cost of the product itself and the convenience of use, the product is generally made small and compact. In this way, during use, if multiple ports are used at the same time and a large amount of data is transmitted, the surface of the product will become hot, and the maximum limit can even reach 50°C; in this case, it will burn the user and cause a poor user experience. Integrating a module component that displays the temperature on the docking station will cause the product cost to rise sharply. Summary of the invention

[0003] In order to solve the problem in the prior art that when multiple ports are used simultaneously and a large amount of data is transmitted, the product surface will become hot, and the maximum limit may even reach 50°C; in this case, the user will be burned and the user experience will be poor. Integrating a temperature display module on the docking station will cause the product cost to rise sharply, the present invention provides a docking station with a temperature warning function.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention discloses an expansion dock with a temperature warning function, comprising a metal shell, a circuit board installed inside the metal shell, a plurality of USB sockets arranged on the circuit board, through holes corresponding to the USB sockets arranged on the metal shell, a marking area arranged on the metal shell, and a temperature-changing color coating coated on the marking area; a heat-conducting sheet is arranged on the surface of the circuit board through an insulating heat-conducting adhesive layer, and the back side of the heat-conducting sheet is in contact with the metal shell of the shell.

[0006] As a preferred technical solution of the present invention, the color change temperature of the thermochromic coating is between 43-48°C.

[0007] As a preferred technical solution of the present invention, the method for detecting temperature of the thermochromic coating comprises the following steps:

[0008] Step 1: First, establish a model to collect the temperature T1 of the metal shell and the temperature T2 of the circuit board at different working temperatures;

[0009] Step 2: The temperature T1 of the metal shell and the temperature T2 of the circuit board at the same working temperature are measured to obtain the thermal conductivity k of the heat conducting sheet, and the thermal conductivity k of the heat conducting sheet obtained at all different working temperatures are combined to form a thermal conductivity set N;

[0010] Step 3: Correct the thermal conductivity k in the thermal conductivity set N and obtain the corrected thermal conductivity k z ;

[0011] Step 4: According to the density, thickness, area and corrected thermal conductivity k of the thermal conductive sheet z The correlation between

[0012] Step 5: After the correlation is obtained, the required production thermal conductivity z is obtained according to the specifications of the thermal conductive sheet to be produced, and then the temperature range of the thermochromic coating is determined according to the operating temperature range of the circuit board.

[0013] As a preferred technical solution of the present invention, a temperature reading colorimetric card is provided on the metal shell.

[0014] As a preferred technical solution of the present invention, the heat conducting sheet is attached to the inner wall of the metal shell by double-sided adhesion.

[0015] As a preferred technical solution of the present invention, the thermal conductive sheet includes a copper mesh at the bottom, a graphene layer is arranged on the upper surface of the copper mesh, and a thermal conductive ridge extending vertically upward and embedded in the graphene layer is provided on the copper mesh, and a plurality of through holes are provided on the side walls of the thermal conductive ridges, and the insulating thermal conductive adhesive layer is filled between the thermal conductive sheet and the circuit board.

[0016] As a preferred technical solution of the present invention, the thickness of the insulating thermal conductive adhesive layer is 1-2 mm.

[0017] As a preferred technical solution of the present invention, the height of the heat-conducting convex strips is less than the thickness of the graphene layer.

[0018] As a preferred technical solution of the present invention, the heat-conducting convex strip is provided with a through hole.

[0019] As a preferred technical solution of the present invention, the copper mesh and the graphene layer are extruded and fired into one body.

[0020] The beneficial effects of the present invention are:

[0021] 1. A marking is provided on the metal shell of the expansion dock with a temperature warning function, and the marking is coated with a thermochromic coating. The temperature of the metal shell can be known by the degree of color change of the thermochromic coating, and the temperature of the metal shell can be converted to the temperature of the internal circuit, thereby realizing temperature detection of the expansion dock without setting up electronic devices for temperature measurement, thereby effectively reducing production costs.

[0022] 2. The method for detecting the temperature of the thermochromic coating in the docking station with a temperature warning function is as follows: first, a model is established to collect the temperature T1 of the metal shell and the temperature T2 of the circuit board at different working temperatures; the temperature T1 of the metal shell and the temperature T2 of the circuit board at the same working temperature are measured to obtain the thermal conductivity k of the thermal conductive sheet, and the thermal conductivity k of the thermal conductive sheet obtained at all different working temperatures are combined to form a thermal conductivity set N; the thermal conductivity k in the thermal conductivity set N is corrected and calculated to obtain a corrected thermal conductivity k z ; According to the density, thickness, area and modified thermal conductivity k of the thermal conductive sheet z After the correlation is obtained, the required production thermal conductivity z is obtained according to the specifications of the thermal conductive sheet to be produced, and then the temperature range of the thermochromic coating is determined according to the operating temperature range of the circuit board. In this way, the temperature of the metal shell can be converted to the temperature of the internal circuit, thereby realizing the temperature detection of the expansion dock without setting up electronic devices for temperature measurement, thereby effectively reducing production costs.

[0023] 3. This expansion dock with temperature warning function is formed by hot-pressing graphene oxide and copper mesh as the core materials, combining the high thermal conductivity of graphene in the XY plane and the high thermal conductivity of copper in the vertical direction to achieve a new type of composite heat dissipation material with XYZ three-dimensional high thermal conductivity; taking into account the XYZ three-dimensional high thermal conductivity characteristics, it improves the thermal conductivity of the Z axis compared to traditional graphite sheets, and improves the thermal conductivity of the XY plane compared to general metal materials; at the same time, it also solves the problem of instantaneous heat conduction of high-power heat sources, and solves the heat dissipation problem that traditional heat sinks in limited structural space cannot solve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] In the attached picture:

[0026] Figure 1 It is a structural schematic diagram of an expansion dock with a temperature warning function according to the present invention;

[0027] Figure 2It is a flow chart of a method for detecting temperature of a thermochromic coating of a docking station with a temperature warning function according to the present invention;

[0028] Figure 3 It is a structural schematic diagram of a heat conducting sheet of a docking station with a temperature warning function according to the present invention;

[0029] Figure 4 The invention discloses a schematic diagram of installing a heat conducting sheet of an expansion dock with a temperature warning function.

[0030] In the figure: 1. Metal shell; 2. Circuit board; 3. USB port; 4. Marking area; 5. Heat conductive sheet; 501. Copper mesh; 502. Graphene layer; 503. Heat conductive ridge; 504. Through hole; 6. Insulating thermal conductive adhesive layer; 7. Temperature reading colorimetric card. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention provides an expansion dock with a temperature warning function, comprising a metal shell 1, a circuit board 2 is installed inside the metal shell 1, a plurality of USB sockets 3 are arranged on the circuit board 2, and through holes corresponding to the USB sockets are arranged on the metal shell 1, and a marking part 4 is arranged on the metal shell 1, and the marking part is coated with a thermochromic coating; a heat conducting sheet 5 is arranged on the surface of the circuit board 2 through an insulating heat conducting adhesive layer 6, and the back side of the heat conducting sheet 5 is in contact with the metal shell 1 of the outer shell. The marking part is arranged on the metal shell, and the marking part is coated with a thermochromic coating. The temperature of the metal shell can be known by the degree of color change of the thermochromic coating, and the temperature of the metal shell can be converted to obtain the temperature of the internal circuit, thereby realizing the temperature detection of the expansion dock without setting up electronic devices for temperature measurement, thereby effectively reducing the production cost.

[0033] The color changing temperature of the thermochromic coating is between 43-48°C, which serves as a high temperature warning and does not change color within the normal working temperature range.

[0034] Wherein, the method for detecting the temperature of the thermochromic coating comprises the following steps:

[0035] Step 1: First, establish a model to collect the temperature T1 of the metal shell and the temperature T2 of the circuit board at different working temperatures;

[0036] Step 2: The temperature T1 of the metal shell and the temperature T2 of the circuit board at the same working temperature are measured to obtain the thermal conductivity k of the heat conducting sheet, and the thermal conductivity k of the heat conducting sheet obtained at all different working temperatures are combined to form a thermal conductivity set N;

[0037] Step 3: Correct the thermal conductivity k in the thermal conductivity set N and obtain the corrected thermal conductivity k z ;

[0038] Step 4: According to the density, thickness, area and corrected thermal conductivity k of the thermal conductive sheet z The correlation between

[0039] Step 5: After the correlation is obtained, the required production thermal conductivity z is obtained according to the specifications of the thermal conductive sheet to be produced, and then the temperature range of the thermochromic coating is determined according to the operating temperature range of the circuit board. In this way, the temperature of the internal circuit can be converted by the temperature on the metal shell, thereby realizing the temperature detection of the docking station without setting up electronic devices for temperature measurement, thereby effectively reducing the production cost.

[0040] The metal shell 1 is provided with a temperature reading colorimetric card 7, which facilitates colorimetric reading of the temperature of the metal shell.

[0041] The heat conducting sheet 5 comprises a copper mesh 501 at the bottom, a graphene layer 502 is arranged on the upper surface of the copper mesh 501, and a heat conducting convex strip 503 is arranged on the copper mesh 501 and is embedded in the graphene layer 502, and a plurality of through holes 504 are arranged on the side wall of the heat conducting convex strip 503, and the insulating heat conducting adhesive layer 6 is filled between the heat conducting sheet 505 and the circuit board 2. By hot pressing the graphene oxide and the copper mesh as the core material, the high thermal conductivity coefficient of the XY plane of the graphene with high thermal conductivity and the high thermal conductivity of the copper material in the vertical direction are combined to realize a new type of composite heat dissipation material with XYZ three-dimensional high thermal conductivity; taking into account the XYZ three-dimensional high thermal conductivity characteristics, the thermal conductivity of the Z axis is improved compared with the traditional graphite sheet, and the thermal conductivity of the XY plane is improved compared with the general metal material; at the same time, it also solves the problem of instantaneous heat generation and heat conduction of high-power heat sources, and solves the heat dissipation problem that cannot be solved by traditional heat sinks in limited structural space.

[0042] The thickness of the insulating heat-conducting adhesive layer 6 is 1-2 mm. The height of the heat-conducting convex strip 503 is less than the thickness of the graphene layer 502. The heat-conducting convex strip 503 is provided with a through hole. The copper mesh 501 and the graphene layer 502 are extruded and fired into one body, which is convenient for manufacturing.

[0043] When working, this expansion dock with temperature warning function has a marking portion on the metal shell 1, and the marking portion 4 is coated with a thermochromic coating. The temperature of the metal shell 1 can be known by the degree of color change of the thermochromic coating, and the temperature of the metal shell 1 can be converted to the temperature of the internal circuit board, thereby realizing temperature detection of the expansion dock without setting up electronic devices for temperature measurement, thereby effectively reducing production costs.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A docking station with a temperature warning function, characterized in that: The invention comprises a metal shell (1), a circuit board (2) is installed inside the metal shell (1), a plurality of USB sockets (3) are arranged on the circuit board (2), through holes corresponding to the USB sockets are arranged on the metal shell (1), a marking area (4) is arranged on the metal shell (1), and the marking area is coated with a thermochromic coating; A heat conducting sheet (5) is provided on the surface of the circuit board (2) via an insulating heat conducting adhesive layer (6), and the back side of the heat conducting sheet (5) is in contact with the outer metal shell (1).

2. The expansion dock with temperature warning function according to claim 1, characterized in that: The color changing temperature of the thermochromic coating is between 43-48°C.

3. The expansion dock with temperature warning function according to claim 1, characterized in that: The method for detecting temperature of the thermochromic coating comprises the following steps: Step 1: First, establish a model to collect the temperature T1 of the metal shell and the temperature T2 of the circuit board at different working temperatures; Step 2: The temperature T1 of the metal shell and the temperature T2 of the circuit board at the same working temperature are measured to obtain the thermal conductivity k of the heat conducting sheet, and the thermal conductivity k of the heat conducting sheet obtained at all different working temperatures are combined to form a thermal conductivity set N; Step 3: Correct the thermal conductivity k in the thermal conductivity set N and obtain the corrected thermal conductivity k z ; Step 4: According to the density, thickness, area and corrected thermal conductivity k of the thermal conductive sheet z The correlation between Step 5: After the correlation is obtained, the required production thermal conductivity z is obtained according to the specifications of the thermal conductive sheet to be produced, and then the temperature range of the thermochromic coating is determined according to the operating temperature range of the circuit board.

4. The expansion dock with temperature warning function according to claim 2, characterized in that: The metal shell (1) is provided with a temperature reading colorimetric card (7).

5. The expansion dock with temperature warning function according to claim 1, characterized in that: The heat conducting sheet (5) is attached to the inner wall of the metal shell (1) by double-sided adhesion.

6. The expansion dock with temperature warning function according to claim 5, characterized in that: The heat conducting sheet (5) comprises a copper mesh (501) at the bottom, a graphene layer (502) is arranged on the upper surface of the copper mesh (501), and a heat conducting convex strip (503) vertically upward and embedded in the graphene layer (502) is arranged on the copper mesh (501), and a plurality of through holes (504) are arranged on the side wall of the heat conducting convex strip (503), and the insulating heat conducting adhesive layer (6) is filled between the heat conducting sheet (505) and the circuit board (2).

7. The expansion dock with temperature warning function according to claim 6, characterized in that: The thickness of the insulating heat-conducting adhesive layer (6) is 1-2 mm.

8. The expansion dock with temperature warning function according to claim 6, characterized in that: The height of the heat-conducting convex strip (503) is smaller than the thickness of the graphene layer (502).

9. The expansion dock with temperature warning function according to claim 6, characterized in that: The heat-conducting convex strip (503) is provided with a through hole.

10. The expansion dock with temperature warning function according to claim 6, characterized in that: The copper mesh (501) and the graphene layer (502) are extruded and fired into one body.

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