Electronic device

Abstract

An electronic device is provided. The electronic device comprises a shell, at least one electronic element, a printed circuit board and an anti-scald shade, the shell is provided with an accommodating space and a metal surface; the at least one electronic component is arranged in the accommodating space; the printed circuit board is arranged in the accommodating space and is electrically connected with at least one electronic element; the anti-scald shade covers the metal surface, and a plurality of vent holes are formed in the anti-scald shade; the anti-scald shade is made of a low-heat-conduction material, and the heat conduction coefficient of the low-heat-conduction material is smaller than or equal to 20 W / mK. Therefore, a user can be prevented from being scalded due to direct contact with a high-temperature metal surface in the electronic device, and the heat dissipation effect of the electronic device can be improved.

Description

Technical Field

[0001] The invention relates to an electronic device, in particular to an electronic device with an anti-scalding effect. Background Art

[0002] Electronic devices operate by passing electric current through the electronic components therein. At this time, the electrical energy will be partially converted into heat energy and increase the temperature of the electronic device. However, users may also touch the overheated electronic device and risk burns.

[0003] In view of this, in order to solve the problem of increasing heat flux in electronic devices, some businesses have applied plastic shells to electronic devices. However, plastic materials cannot meet the heat dissipation requirements of electronic devices, so the number of electronic devices using metal shells to help dissipate heat has also increased. However, according to the content specified in the electronic product safety standard IEC-62368, the allowable touch temperature specification of metal shells is much lower than that of shells made of plastic materials, resulting in the dilemma of not being able to take into account both touch temperature and component temperature when designing electronic products. Furthermore, upright desktop electronic devices such as computers, screens, and notebook computers are closely related to people's lives and are more likely to be touched by users. Therefore, the touch temperature specification of electronic devices needs to be strictly regulated to reduce the possibility of users accidentally touching and getting burned.

[0004] Therefore, how to effectively dissipate heat while preventing users from accidentally touching high-temperature electronic devices and getting burned has become a goal that relevant industry personnel are continuously working on.

[0005] Therefore, it is necessary to provide an electronic device to solve the above problems. Summary of the invention

[0006] One embodiment of the present invention is to provide an electronic device, comprising a housing, at least one electronic component, a printed circuit board, and an anti-scalding shield. The housing has a housing space and a metal surface. At least one electronic component is disposed in the housing space. The printed circuit board is disposed in the housing space and is electrically connected to at least one electronic component. The anti-scalding shield is covered on the metal surface, and the anti-scalding shield is provided with a plurality of vents. The anti-scalding shield is made of a low thermal conductivity material, and the thermal conductivity coefficient of the low thermal conductivity material is less than or equal to 20 W / mK.

[0007] Another embodiment of the present invention is to provide an electronic device, comprising a housing, at least one electronic component, a printed circuit board, and an anti-scalding shield. The housing has a housing space and a metal surface, and the housing comprises a plurality of fins, and the plurality of fins are disposed on the metal surface separately from each other. At least one electronic component is disposed in the housing space. The printed circuit board is disposed in the housing space and is electrically connected to the at least one electronic component. The anti-scalding shield is covered on the metal surface, and the anti-scalding shield is provided with a plurality of ventilation holes. The anti-scalding shield is made of a low thermal conductivity material, and the thermal conductivity coefficient of the low thermal conductivity material is less than or equal to 20W / mK.

[0008] Another embodiment of the present invention is to provide an electronic device, comprising a housing, at least one electronic component, a printed circuit board, and an anti-scalding shield. The housing has a housing space and a metal surface, and the housing comprises a plurality of fins, and the plurality of fins are disposed on the metal surface separately from each other. At least one electronic component is disposed in the housing space. The printed circuit board is disposed in the housing space and is electrically connected to the at least one electronic component. The anti-scalding shield is covered on the metal surface, and the periphery of the anti-scalding shield and the housing defines a ventilation gap. The anti-scalding shield is made of a low thermal conductivity material, and the thermal conductivity coefficient of the low thermal conductivity material is less than or equal to 20 W / mK.

[0009] Thus, the electronic device of the present invention can prevent the user from directly contacting the high-temperature metal surface by covering the metal surface of the housing with the anti-scalding shield, thereby effectively reducing the risk of the user accidentally getting burned. Furthermore, by providing a plurality of vents in the anti-scalding shield or defining a ventilation gap between the anti-scalding shield and the periphery of the housing, it is beneficial to discharge the heat generated during the operation of the electronic device from the vents in a thermal convection manner. Furthermore, by providing a plurality of fins disposed on the metal surface of the housing and providing a plurality of vents in the anti-scalding shield, or by configuring the fins and the ventilation gap, it is beneficial to transfer the heat inside the housing to the fins through the metal surface and enter the anti-scalding shield, and then discharge the heat through the vents or the ventilation gap by thermal convection. In addition, by making the anti-scalding shield from a low thermal conductivity material and the thermal conductivity coefficient of the low thermal conductivity material being less than or equal to 20W / mK, the electronic device of the present invention can meet the touch temperature specifications specified by the electronic product safety standard to reduce the possibility of the user accidentally touching and getting burned. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the following are the descriptions of the accompanying drawings:

[0011] Figure 1 A schematic diagram of an electronic device according to an embodiment of the present invention is shown;

[0012] Figure 2 Draw Figure 1 An exploded view of the electronic device;

[0013] Figure 3 Draw Figure 1 Another exploded view of the electronic device;

[0014] Figure 4 Draw Figure 1 A schematic diagram of an anti-scalding shield for an electronic device;

[0015] Figure 5A Draw Figure 4 A schematic diagram of a first portion of the anti-scalding mask projected along a first direction;

[0016] Figure 5B Draw Figure 4 A schematic diagram of a projection of a second part of the anti-scalding mask along a first direction;

[0017] Figure 6 Draw Figure 4 A schematic diagram of a projection of the anti-scalding mask along a second direction;

[0018] Figure 7 An exploded view of an electronic device according to another embodiment of the present invention is shown;

[0019] Figure 8 Draw Figure 7 Another exploded view of the electronic device;

[0020] Fig. 9 Draw Figure 7 A cross-sectional view of the electronic device along the cutting line 9-9;

[0021] Fig.10 Draw Figure 7 A schematic diagram of the configuration of fins in an electronic device;

[0022] Fig.11 Draw Figure 7 An enlarged view of the arrangement of fins and vents of an electronic device;

[0023] Fig. 12A A schematic diagram of a fin according to another embodiment of the present invention is shown;

[0024] Fig. 12B A schematic diagram of a fin according to another embodiment of the present invention is shown;

[0025] Fig. 12C A schematic diagram of a fin according to another embodiment of the present invention is shown;

[0026] Fig.12D A schematic diagram of a fin according to another embodiment of the present invention is shown;

[0027] Fig.13 A schematic diagram illustrating an electronic device according to another embodiment of the present invention;

[0028] Fig.14 A schematic diagram illustrating an electronic device according to another embodiment of the present invention;

[0029] Fig.15 Draw Fig.14 An exploded view of the electronic device;

[0030] Fig.16 Draw Fig.14 Another exploded view of the electronic device;

[0031] Fig.17 Draw Fig.14 A schematic diagram of an electronic device projected along a first direction; and

[0032] Fig.18 Draw Fig.14 A schematic diagram of an electronic device projected along a second direction.

[0033] Main component symbols:

[0034] 100, 200, 300, 400 Electronics

[0035] 101, 201, 401 Accommodation Space

[0036] 102, 202, 402 mask space

[0037] 110, 210, 310, 410 housing

[0038] 120, 220, 420 electronic components

[0039] 130, 230, 430 printed circuit boards

[0040] 131, 231, 431 circuit board surface

[0041] 140, 240, 340, 440 anti-scalding shield

[0042] 111, 211, 311, 411 metal surface

[0043] 141, 241 vents

[0044] 142, 242, 442 side wall structure

[0045] 143, 243, 443 mask cover

[0046] 144, 444 Surface

[0047] 150 Part 1

[0048] 160 Part 2

[0049] 212, 412 fins

[0050] 345 Fixing hole

[0051] 450 Ventilation Clearance

[0052] D1 First direction

[0053] D2 Second direction

[0054] A1 Projection area of ​​the anti-scalding shield along the first direction

[0055] A11 Projection area of ​​the first part of the anti-scalding shield along the first direction

[0056] A12 Projection area of ​​the second part of the anti-scalding shield along the first direction

[0057] A2 Projection area of ​​the anti-scalding shield along the second direction

[0058] A21 Projection area of ​​the first part of the anti-scalding shield along the second direction

[0059] A22 Projection area of ​​the second part of the anti-scalding shield along the second direction

[0060] B1 Projection area of ​​the vent along the first direction

[0061] B11 Projection area of ​​the vent hole in the first part along the first direction

[0062] B12 Projection area of ​​the vent hole in the second part along the first direction

[0063] B2 Projection area of ​​the vent along the second direction

[0064] B21 Projection area of ​​the vent hole in the first part along the second direction

[0065] B22 Projection area of ​​the vent hole in the second part along the second direction

[0066] C1 Projected area of ​​the ventilation gap along the first direction

[0067] C2 Projected area of ​​the ventilation gap along the second direction

[0068] D M Minimum distance between the mask cover and the metal surface

[0069] H M Maximum height of fins vertical to metal surface

[0070] 4-4 Imaginary Line

[0071] 9-9 Cutting line DETAILED DESCRIPTION

[0072] The following will discuss various embodiments of the present invention in more detail. However, this embodiment can be an application of various inventive concepts and can be specifically implemented in various specific scopes. The specific embodiments are for illustrative purposes only and are not limited to the scope of the disclosure. In addition, in order to simplify the drawings, some well-known and commonly used structures and elements will be depicted in the drawings in a simple schematic manner, and repeated or identical elements may be represented by the same number.

[0073] Please refer to Figure 1 , Figure 2 and Figure 3 . Figure 1 A schematic diagram of an electronic device 100 according to an embodiment of the present invention is shown. Figure 2 Draw Figure 1 An exploded view of the electronic device 100 is shown. Figure 3 Draw Figure 1 Another exploded view of the electronic device 100 is shown. The electronic device 100 includes a housing 110 , at least one electronic component 120 , a printed circuit board 130 , and a heat-proof cover 140 .

[0074] The housing 110 has a receiving space 101 (indicated at Figure 3 ) and a metal surface 111. In detail, the shell 110 is a component used by the electronic device 100 to isolate the external environment, and the shell 110 can be further divided into a non-metallic shell part (not otherwise indicated) and a metal shell part (not otherwise indicated). The non-metallic shell part has an excellent anti-scalding effect, while the metal shell part helps to dissipate heat, and the surface of the metal shell part is the metal surface 111 of the present invention (including the surface of the metal shell part in a direction different from the non-metallic shell part and the surface connected to the non-metallic shell part). In addition, the shell 110 can also be provided with ventilation holes (not shown) on it as needed. When the shell 110 does not have ventilation holes, the waterproof, dustproof, low smoke and other characteristics of the electronic device 100 can be enhanced, and when the shell 110 has ventilation holes, the heat dissipation efficiency can be further improved, but the present invention is not limited thereto.

[0075] like Figure 3 As shown, the electronic component 120 is disposed in the accommodating space 101 of the housing 110, and the printed circuit board 130 is also disposed in the accommodating space 101 and electrically connected to the electronic component 120. The electronic component 120 may be, but is not limited to, a chip, a resistor, a capacitor, an inductor, a potentiometer, a transformer, a triode or a diode, and the printed circuit board 130 may be a circuit substrate including wiring or other necessary components, but the present invention is not limited thereto.

[0076] The anti-scalding shield 140 is covered on the metal surface 111, and the anti-scalding shield 140 is provided with a plurality of ventilation holes 141. Figure 1As shown, the vents 141 can be provided on different surfaces of the anti-scalding shield 140, or can be provided on only one surface of the anti-scalding shield 140 as required, and a plurality of vents 141 can be provided on the anti-scalding shield 140 separately from each other, but the present invention is not limited to the contents disclosed in the accompanying drawings. Thus, the electronic device 100 of the present invention can prevent the user from directly contacting the high-temperature metal surface 111 by covering the anti-scalding shield 140 on the metal surface 111 of the housing 110, thereby effectively reducing the risk of the user being scalded by the metal surface 111. Furthermore, the provision of a plurality of vents 141 is conducive to discharging the heat generated by the electronic device 100 during operation from the vents 141 in a heat convection manner, thereby preventing the electronic device 100 from overheating. In addition, the shape of the anti-scalding shield 140 can be a rectangle as shown in the electronic device 100, or can be an arc, polygon, etc., and the present invention is not limited to the contents disclosed in the accompanying drawings.

[0077] The anti-scald shield 140 is made of a low thermal conductivity material, which can be plastic, wood, rubber, glass, etc., with a thermal conductivity coefficient less than or equal to 20W / mK. The anti-scald shield 140 made of a low thermal conductivity material can meet the touch temperature specifications specified by the electronic product safety standard and prevent the user from directly touching the metal surface 111 of the housing 110 and getting burned. Furthermore, in the electronic device 100, since the electronic component 120 and the printed circuit board 130 are both disposed in the accommodation space 101 of the housing 110, and the shield space 102 (indicated at Figure 3 ) is not provided with the electronic component 120, and there is no risk of foreign matter falling into the interior of the electronic device 100. At this time, the size and form of the vent 141 of the anti-scalding shield 140 will not be restricted by the electronic product safety standard, and the anti-scalding shield 140 can be configured with a higher opening ratio if the mechanical strength permits, or the size of the vent 141 can be increased to further improve the heat dissipation efficiency of the electronic device 100 of the present invention.

[0078] For example Figure 1 and Figure 2As shown, the anti-scalding shield 140 may further include a side wall structure 142 and a shield cover 143. One side of the side wall structure 142 is connected to the shell 110, and the shield cover 143 is connected to the other side of the side wall structure 142. At this time, the shell 110, the side wall structure 142 and the shield cover 143 define a shield space 102 of the anti-scalding shield 140, wherein at least one of the side wall structure 142 and the shield cover 143 may include a vent 141, and the vent 141 is connected to the shield space 102. By providing the side wall structure 142 and the shield cover 143, and the vent 141 is opened in at least one of the side wall structure 142 and the shield cover 143, the shield space 102 can provide the space required for heat convection, thereby facilitating the heat from the shell 110 to be discharged from the electronic device 100 through the vent 141. In addition, as Figure 1 and Figure 2 As shown, the vents 141 may be separated from each other and disposed equidistantly on the sidewall structure 142 or the mask cover 143 , or both the sidewall structure 142 and the mask cover 143 may include vents 141 , but the present invention is not limited thereto.

[0079] Please also refer to Figure 3 , Figure 4 , Figure 5A , Figure 5B as well as Figure 6 . Figure 4 Draw Figure 1 A schematic diagram of the anti-scalding shield 140 of the electronic device 100 is shown in FIG. Figure 5A Draw Figure 4 A schematic diagram of a projection of the first portion 150 of the anti-scalding shield 140 along the first direction D1, Figure 5B Draw Figure 4 The schematic diagram of the second portion 160 of the anti-scalding shield 140 projected along the first direction D1 is shown in FIG. Figure 6 Draw Figure 4 Schematic diagram of the projection of the anti-scalding shield 140 along the second direction D2.

[0080] In the electronic device 100 of the present invention, a first direction D1 and a second direction D2 are defined. Figure 3As shown, the second direction D2 is the extending direction of a circuit board surface 131 perpendicular to the printed circuit board 130, and the first direction D1 is perpendicular to the second direction D2. The projection area of ​​the anti-scalding shield 140 along the first direction D1 is A1, the projection area of ​​the anti-scalding shield 140 along the second direction D2 is A2, the projection area of ​​the vent 141 along the first direction D1 is B1, and the projection area of ​​the vent 141 along the second direction D2 is B2, which can meet the following conditions: 5% ≤ (B1 + B2) / (A1 + A2). In this way, the anti-scalding shield 140 can have both heat dissipation and anti-scalding effects and excellent mechanical strength, thereby making the electronic device 100 of the present invention have excellent market application potential. In some embodiments, it can further meet the following conditions: 12% ≤ (B1 + B2) / (A1 + A2) ≤ 40%, so as to achieve the best balance of heat dissipation, anti-scalding and mechanical strength.

[0081] For example Figure 4 As shown, the anti-scald shield 140 may include a first portion 150 and a second portion 160, and the first portion 150 and the second portion 160 are arranged in sequence along the first direction D1. Specifically, the electronic device 100 defines the first portion 150 and the second portion 160 of the anti-scald shield 140 by half of its body height (excluding the height of components such as the bracket and the external antenna). Figure 4 The first portion 150 and the second portion 160 are distinguished by an imaginary line 4 - 4 located at half of the length of the anti-scalding shield 140 along the first direction D1 , and the first portion 150 and the second portion 160 are respectively provided with at least one vent hole 141 .

[0082] like Figure 3 , Figure 5A , Figure 5B and Figure 6 As shown, when the electronic device 100 is projected along the first direction D1 and the second direction D2 respectively, the projection area of ​​the first portion 150 of the anti-scalding shield 140 along the first direction D1 is A11, the projection area of ​​the first portion 150 of the anti-scalding shield 140 along the second direction D2 is A21, the projection area of ​​the vent 141 located in the first portion 150 along the first direction D1 is B11, and the projection area of ​​the vent 141 located in the first portion 150 along the second direction D2 is B21, which can meet the following condition: 5%≤(B11+B21) / (A11+A21).

[0083] Furthermore, when the projection area of ​​the second portion 160 of the anti-scalding shield 140 along the first direction D1 is A12, the projection area of ​​the second portion 160 of the anti-scalding shield 140 along the second direction D2 is A22, the projection area of ​​the vent 141 located in the second portion 160 along the first direction D1 is B12, and the projection area of ​​the vent 141 located in the second portion 160 along the second direction D2 is B22, the following condition can be satisfied: 5%≤(B12+B22) / (A12+A22).

[0084] Specifically, the projection area A1 of the anti-scalding shield 140 along the first direction D1 is the sum of the projection area A11 of the first part 150 along the first direction D1 and the projection area A12 of the second part 160 along the first direction D1 (A1=A11+A12), the projection area A2 of the anti-scalding shield 140 along the second direction D2 is the sum of the projection area A21 of the first part 150 along the second direction D2 and the projection area A22 of the second part 160 along the second direction D2 (A2=A21+A22), and the projection area A11 of the vent 141 along the first direction D1 is the sum of the projection area A121 of the first part 150 along the second direction D2 and the projection area A122 of the second part 160 along the second direction D2. The area B1 is the sum of the projection area B11 of the vent 141 located in the first part 150 along the first direction D1 and the projection area B12 of the vent 141 located in the second part 160 along the first direction D1 (B1=B11+B12), and the projection area B2 of the vent 141 along the second direction D2 is the sum of the projection area B21 of the vent 141 located in the first part 150 along the second direction D2 and the projection area B22 of the vent 141 located in the second part 160 along the second direction D2 (B2=B21+B22). When the electronic device 100 is projected along the first direction D1 and the second direction D2, the ratios of the projection areas of different parts of the anti-scalding shield 140 respectively meet the above conditions, which can ensure that the first part 150 and the second part 160 of the anti-scalding shield 140 both have excellent heat dissipation, anti-scalding effects and mechanical strength, and have excellent market application potential. In some embodiments, the electronic device 100 may also satisfy the following conditions: 12%≤(B11+B21) / (A11+A21)≤40%; or 12%≤(B12+B22) / (A12+A22)≤40%.

[0085] In addition, the projection area A1 of the anti-scalding shield 140 along the first direction D1 may be the projection area from the metal surface 111 to a surface 144 of the anti-scalding shield 140 (eg, Figure 5A and Figure 5B As indicated, the position of the surface 144 is shown in Figure 4 As shown), the projection area where the anti-scalding shield 140 overlaps with the housing 110 is excluded, thereby more accurately configuring the proportion of the vent holes 141 in the anti-scalding shield 140 to ensure the heat dissipation and anti-scalding effects of the electronic device 100.

[0086] Please refer to Figure 7 and Figure 8 , Figure 7 FIG. 2 is an exploded view of an electronic device 200 according to another embodiment of the present invention. Figure 8 Draw Figure 7 Another exploded view of the electronic device 200 is shown. The electronic device 200 includes a housing 210 , at least one electronic component 220 , a printed circuit board 230 , and a scald protection cover 240 .

[0087] The housing 210 has a housing space 201 and a metal surface 211, and the housing 210 includes a plurality of fins 212. The electronic component 220 is disposed in the housing space 201, the printed circuit board 230 is disposed in the housing space 201 and electrically connected to the electronic component 220, and the anti-scalding shield 240 is covered on the metal surface 211. The anti-scalding shield 240 has a plurality of vents 241 and includes a sidewall structure 242 and a shield cover 243. In addition, the electronic component 220, the printed circuit board 230, and the anti-scalding shield 240 are similar in structure to the electronic component 120, the printed circuit board 130, and the anti-scalding shield 140 of the electronic device 100, and the definitions of the first direction D1 and the second direction D2 of the electronic device 200 are also the same as the definitions of the first direction D1 and the second direction D2 of the electronic device 100. Therefore, the structures and details of the same components are referred to the description of the electronic device 100, and will not be repeated here.

[0088] Please also refer to Figure 7 , Fig. 9 and Fig.10 , Fig. 9 Draw Figure 7 A cross-sectional view of the electronic device 200 along the cutting plane line 9-9, Fig.10 Draw Figure 7 FIG. 2 is an enlarged view of the fin 212 in the electronic device 200. Fig. 9 As shown, one side of the side wall structure 242 of the anti-scalding shield 240 is connected to the housing 210, and the shield cover 243 is connected to the other side of the side wall structure 242, wherein the housing 210, the side wall structure 242 and the shield cover 243 define a shield space 202, and the fin 212 is located in the shield space 202. The fin 212 located in the shield space 202 can not only prevent the user from accidentally touching the fin 212 and getting burned or cut, but also make the appearance of the electronic device 200 more flat and beautiful.

[0089] like Fig. 9As shown, the fins 212 are separately disposed on the metal surface 211 of the housing 210, the electronic component 220 and the printed circuit board 230 are both disposed in the accommodation space 201 of the housing 210, and the circuit board surface 231 of the printed circuit board 230 faces a direction different from the fins 212. In this way, when the electronic device 200 is running, the heat generated by the electronic component 220 inside the housing 210 can be transferred to the fins 212 through the metal surface 211 of the housing 210 and enter the anti-scalding shield 240, and then the heat is discharged through the vents 241 of the anti-scalding shield 240 through thermal convection, so as to improve the heat dissipation performance of the electronic device 200, and can prevent the electronic device 200 from overheating and improve the performance of the electronic device 200.

[0090] Please refer to Fig.10 , which shows Figure 7 Schematic diagram of the configuration of the fins 212 in the electronic device 200. In detail, in the electronic device 200, the height of each fin 212 perpendicular to the metal surface 211 can be less than or equal to 200 mm. Fig.10 As shown, the maximum height of the fin 212 perpendicular to the metal surface 211 is H M The minimum distance between the shield cover 243 of the anti-scalding shield 240 and the metal surface 211 is D M , which can meet the following conditions: 40% ≤ H M / D M ≤100%. In this way, the heat dissipation effect and mechanical strength of the electronic device 200 can be effectively increased while taking into account the function of supporting the anti-scalding shield 240, but the present invention is not limited thereto.

[0091] Please also refer to Fig.10 and Fig.11 , Fig.11 Draw Figure 7 FIG. 2 is an enlarged view of the arrangement of the fin 212 and the vent hole 241 of the electronic device 200. Fig.10 and Fig.11As shown, in some embodiments, the projection position of the vent 241 in the first direction D1 is separated from the projection position of the fin 212 in the first direction D1, and the projection position of the vent 241 in the second direction D2 is separated from the projection position of the fin 212 in the second direction D2. Specifically, in the electronic device 200, the distance between any two adjacent fins 212 can be set to be the same, the vents 241 are separated from each other and are equidistantly opened on the anti-scalding shield 240, and the projection positions of the vent 241 in the first direction D1 and the second direction D2 do not overlap with the projection positions of the fin 212 in the first direction D1 and the second direction D2. In this way, each fin 212 will be covered by the anti-scalding shield 240 and will not be exposed from the vent 241, so that the fin 212 is not easy to be directly observed from the appearance of the electronic device 200, thereby increasing the aesthetics of the electronic device 200. Furthermore, since the distance between any two adjacent fins 212 is equal to the width of the vent 241 of the anti-scalding shield 240 , the vent 241 will not be blocked by the cross section of the fin 212 , thereby maximizing the ventilation area of ​​the vent 241 and further enhancing the heat dissipation performance of the anti-scalding shield 240 .

[0092] Please refer to Fig. 12A , Fig. 12B , Fig. 12C and Fig.12D , Fig. 12A A schematic diagram of a fin according to another embodiment of the present invention is shown. Fig. 12B A schematic diagram of a fin according to another embodiment of the present invention is shown. Fig. 12C A schematic diagram of a fin according to another embodiment of the present invention is shown. Fig.12D A schematic diagram of a fin according to another embodiment of the present invention is shown. Fig. 12A , Fig. 12B , Fig. 12C and Fig.12D As shown, the fin of the present invention can be Figure 7 The fins 212 shown in the vertical position may also be selected as Fig. 12A The inclined fins shown in FIG. Fig. 12B The cross-cut fin shown in FIG. Fig. 12C The pin fin shown in FIG. Fig.12D The rotating fins shown or any combination of the above fins are not limited thereto.

[0093] Please refer to Fig.13 , which is a schematic diagram of an electronic device 300 according to another embodiment of the present invention. The electronic device 300 includes a housing 310, at least one electronic component (not shown), a printed circuit board (not shown), and an anti-scalding shield 340. Fig.13 As shown, the housing 310 has a metal surface 311, and the anti-scalding shield 340 is covered on the metal surface 311 to prevent the user from directly contacting the high-temperature metal surface 311. Furthermore, the anti-scalding shield 340 has a fixing hole 345, so that the anti-scalding shield 340 can be directly used as a hanging bracket for fixing the electronic device 300 on a wall, or a stand hung on a ceiling and standing on a desktop, thereby making the electronic device 300 of the present invention have excellent market application potential.

[0094] Please refer to Fig.14 , Fig.15 and Fig.16 . Fig.14 A schematic diagram of an electronic device 400 according to another embodiment of the present invention is shown. Fig.15 Draw Fig.14 An exploded view of the electronic device 400, and Fig.16 Draw Fig.14 Another exploded view of the electronic device 400 is shown. The electronic device 400 includes a housing 410 , at least one electronic component 420 , a printed circuit board 430 , and an anti-scalding cover 440 .

[0095] The housing 410 has a housing space 401 and a metal surface 411, and the housing 410 includes a plurality of fins 412. The electronic component 420 is disposed in the housing space 401, the printed circuit board 430 is disposed in the housing space 401 and electrically connected to the electronic component 420, and the anti-scalding shield 440 is covered on the metal surface 411. The anti-scalding shield 440 and the periphery (not shown) of the housing 410 define a ventilation gap 450. In addition, the electronic component 420 and the printed circuit board 430 are similar in structure to the electronic component 120 and the printed circuit board 130 of the electronic device 100, so the structure and details of the same components please refer to the description of the electronic device 100, which will not be repeated here.

[0096] like Figures 14 to 16 As shown, the anti-scalding shield 440 includes a side wall structure 442 and a shield cover 443. The shield cover 443 is connected to the side wall structure 442, wherein the side wall structure 442 extends from the shield cover 443 toward the housing 410 and is connected to the housing 410. The housing 410, the side wall structure 442 and the shield cover 443 define a shield space 402, the fin 412 is located in the shield space 402, and the ventilation gap 450 is defined by the side wall structure 442 and the periphery of the housing 410, and the ventilation gap 450 is connected to the shield space 402.

[0097] Specifically, in the electronic device 400, the anti-scalding shield 440 is not connected to the metal surface 411 of the housing 410, and the ventilation gap 450 is a gap between the side wall structure 442 of the anti-scalding shield 440 and the housing 410 that is not connected, and the fins 412 can be exposed to the electronic device 400 through the ventilation gap 450. In this way, when the electronic device 400 is running, the heat generated by the electronic component 420 inside the housing 410 can be transferred to the fins 412 through the metal surface 411 of the housing 410 and enter the anti-scalding shield 440, and then the heat is discharged through the ventilation gap 450 between the anti-scalding shield 440 and the housing 410 through thermal convection, so as to improve the heat dissipation performance of the electronic device 400, and to prevent the electronic device 400 from overheating and improve the performance of the electronic device 400.

[0098] Please refer to Fig.16 , Fig.17 and Fig.18 , Fig.17 Draw Fig.14 A schematic diagram of an electronic device 400 projected along a first direction D1, Fig.18 Draw Fig.14 Schematic diagram of the electronic device 400 projected along the second direction D2. Fig.16 , Fig.17 and Fig.18 As shown, a first direction D1 and a second direction D2 are defined in the electronic device 400 of the present invention, the second direction D2 is the extension direction of a circuit board surface 431 perpendicular to the printed circuit board 430, and the first direction D1 is perpendicular to the second direction D2. The projection area of ​​the anti-scalding shield 440 along the first direction D1 is A1, the projection area of ​​the anti-scalding shield 440 along the second direction D2 is A2, the projection area of ​​the ventilation gap 450 along the first direction D1 is C1, and the projection area of ​​the ventilation gap 450 along the second direction D2 is C2, which satisfies the following condition: 5% ≤ (C1 + C2) / (A1 + A2). In this way, the anti-scalding shield 440 can have both heat dissipation and anti-scalding effects as well as excellent mechanical strength.

[0099] Specifically, in the electronic device 400, the ventilation gap 450 surrounds and extends around the periphery of the housing 410. At this time, the projection area A1 of the anti-scalding shield 440 along the first direction D1 is the projection area from the metal surface 411 to a surface 444 of the anti-scalding shield 440 (e.g. Fig.17 As indicated, the position of surface 444 is shown in Fig.15), to exclude the projection area of ​​the overlapping portion of the anti-scalding shield 140 and the housing 410, and the projection area C2 of the ventilation gap 450 along the second direction D2 is zero, so that it cannot be seen from the figure, but in some embodiments, the shape of the anti-scalding shield 440 can also be an arc, polygon, etc., in which case the projection area C2 of the ventilation gap 450 along the second direction D2 can present different values, and the present invention is not limited thereto. In addition, in some embodiments, the number of ventilation gaps can be at least two, and at least two ventilation gaps are not connected to each other and are respectively located on two opposite sides of the electronic device, but the present invention is not limited thereto.

[0100] Furthermore, the anti-scald shield 140 and the housing 410 may be fixed by setting a bosscolumn on the metal surface 411 for the anti-scald shield 140 to be locked, thereby achieving the effect of the anti-scald shield 140 being suspended. Alternatively, in some embodiments, a substructure with a fixing function may be set on the metal surface 411, the fins 412 or the non-metallic shell part of the housing 410 for the anti-scald shield 140 to be buckled or locked, but the present invention is not limited thereto.

[0101] In summary, the advantages of the electronic device of the present invention are as follows. First, by covering the metal surface of the shell with an anti-scalding shield, the electronic device of the present invention can prevent the user from directly contacting the high-temperature metal surface, so as to effectively reduce the risk of the user accidentally being scalded. Second, by providing a plurality of vents in the anti-scalding shield or defining a ventilation gap between the anti-scalding shield and the periphery of the shell, it is beneficial to discharge the heat generated by the electronic device during operation from the vents in a thermal convection manner, thereby avoiding overheating of the electronic device and improving the performance of the electronic device. Third, by including a plurality of fins disposed on the metal surface of the shell, the heat dissipation efficiency of the electronic device can be effectively increased. Fourth, by making the anti-scalding shield from a low thermal conductivity material and the thermal conductivity coefficient of the low thermal conductivity material less than or equal to 20W / mK, the electronic device of the present invention can meet the touch temperature specifications specified by the electronic product safety standard to reduce the possibility of users accidentally touching and being scalded. Fifth, by satisfying specific conditions for the ratio of the projected area of ​​the anti-scalding cover to its vent holes or ventilation gaps in different directions, the anti-scalding cover can have both heat dissipation and anti-scalding effects as well as excellent mechanical strength, thereby making the electronic device of the present invention have excellent market application potential.

[0102] Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any technician in this field should be able to make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the attached claims.

Claims

1. An electronic device, comprising: A shell having a containing space and a metal surface; At least one electronic component, the at least one electronic component is disposed in the accommodating space; a printed circuit board, which is disposed in the accommodating space and electrically connected to the at least one electronic component; as well as an anti-scalding shield, which is covered on the metal surface and has a plurality of ventilation holes; The anti-scalding shield is made of a low thermal conductivity material, and the thermal conductivity coefficient of the low thermal conductivity material is less than or equal to 20 W / mK.

2. The electronic device as claimed in claim 1, wherein the anti-scalding shield further comprises: A side wall structure, one side of which is connected to the shell; as well as A mask cover connected to the other side of the side wall structure, and the housing, the side wall structure and the mask cover define a mask space; Wherein, at least one of the side wall structure and the mask cover comprises the ventilation holes, and the ventilation holes are connected to the mask space.

3. The electronic device as claimed in claim 2, wherein the projection area of ​​the anti-scalding shield along a first direction is A1, the projection area of ​​the anti-scalding shield along a second direction is A2, the projection area of ​​the vents along the first direction is B1, and the projection area of ​​the vents along the second direction is B2, which satisfies the following conditions: 5%≤(B1+B2) / (A1+A2); in, The second direction is perpendicular to a circuit board surface of the printed circuit board, the first direction is perpendicular to the second direction, and the projection area of ​​the anti-scalding shield along the first direction is the projection area from the metal surface to a surface of the anti-scalding shield.

4. The electronic device as claimed in claim 3, wherein: The anti-scalding shield has a first portion and a second portion, and the first portion and the second portion are arranged in sequence along the first direction; as well as The projection area of ​​the first part along the first direction is A11, the projection area of ​​the first part along the second direction is A21, the projection area of ​​the vents located in the first part along the first direction is B11, and the projection area of ​​the vents located in the first part along the second direction is B21, which meets the following conditions: 5%≤(B11+B21) / (A11+A21).

5. The electronic device as claimed in claim 4, wherein a projection area of ​​the second portion along the first direction is A12, a projection area of ​​the second portion along the second direction is A22, a projection area of ​​the vents located in the second portion along the first direction is B12, and a projection area of ​​the vents located in the second portion along the second direction is B22, which satisfies the following conditions: 5%≤(B12+B22) / (A12+A22). 6 . The electronic device as claimed in claim 2 , wherein the ventilation holes are separated from each other and are equidistantly disposed on the side wall structure or the mask cover. 7 . The electronic device as claimed in claim 2 , wherein both the side wall structure and the shield cover include the ventilation holes.

8. An electronic device, comprising: A shell having a containing space and a metal surface, the shell comprising: A plurality of fins, the plurality of fins are disposed separately from each other on the metal surface; At least one electronic component, the at least one electronic component is disposed in the accommodating space; a printed circuit board, which is disposed in the accommodating space and electrically connected to the at least one electronic component; and an anti-scalding shield, which is covered on the metal surface and has a plurality of ventilation holes; The anti-scalding shield is made of a low thermal conductivity material, and the thermal conductivity coefficient of the low thermal conductivity material is less than or equal to 20 W / mK. 9 . The electronic device as claimed in claim 8 , wherein a height of each of the fins perpendicular to the metal surface is less than or equal to 200 mm. 10 . The electronic device as claimed in claim 8 , wherein the fins are upright fins, inclined fins, cross-cut fins, pin-shaped fins, turned fins or a combination thereof.

11. The electronic device as claimed in claim 8, wherein the anti-scalding shield further comprises: A side wall structure, one side of which is connected to the shell; as well as a mask cover connected to the other side of the side wall structure, wherein the housing, the side wall structure and the mask cover define a mask space, and the fins are located in the mask space; Wherein, at least one of the side wall structure and the mask cover comprises the ventilation holes, and the ventilation holes are connected to the mask space.

12. The electronic device as claimed in claim 11, wherein the projection area of ​​the anti-scalding shield along a first direction is A1, the projection area of ​​the anti-scalding shield along a second direction is A2, the projection area of ​​the vents along the first direction is B1, and the projection area of ​​the vents along the second direction is B2, which satisfies the following conditions: 5%≤(B1+B2) / (A1+A2); in, The second direction is perpendicular to a circuit board surface of the printed circuit board, the first direction is perpendicular to the second direction, and the projection area of ​​the anti-scalding shield along the first direction is the projection area from the metal surface to a surface of the anti-scalding shield.

13. The electronic device of claim 12, wherein: The anti-scalding shield has a first portion and a second portion, and the first portion and the second portion are arranged in sequence along the first direction; as well as The projection area of ​​the first part along the first direction is A11, the projection area of ​​the first part along the second direction is A21, the projection area of ​​the vents located in the first part along the first direction is B11, and the projection area of ​​the vents located in the first part along the second direction is B21, which meets the following conditions: 5%≤(B11+B21) / (A11+A21).

14. The electronic device as claimed in claim 13, wherein a projection area of ​​the second portion along the first direction is A12, a projection area of ​​the second portion along the second direction is A22, a projection area of ​​the vents located in the second portion along the first direction is B12, and a projection area of ​​the vents located in the second portion along the second direction is B22, which satisfies the following conditions: 5%≤(B12+B22) / (A12+A22).

15. The electronic device as claimed in claim 12, wherein the projection positions of the vents in the first direction are separated from the projection positions of the fins in the first direction, and the projection positions of the vents in the second direction are separated from the projection positions of the fins in the second direction. 16 . The electronic device as claimed in claim 11 , wherein both the side wall structure and the shield cover comprise the ventilation holes.

17. The electronic device as claimed in claim 11, wherein a maximum height of the fins perpendicular to the metal surface is H M The minimum distance between the mask cover and the metal surface is D M , which satisfies the following conditions: 40%≤H M / D M ≤100%。 18. An electronic device, comprising: A shell having a containing space and a metal surface, the shell comprising: A plurality of fins, the plurality of fins are disposed separately from each other on the metal surface; At least one electronic component, the at least one electronic component is disposed in the accommodating space; a printed circuit board, which is disposed in the accommodating space and electrically connected to the at least one electronic component; and an anti-scalding shield, the anti-scalding shield is covered on the metal surface, and a ventilation gap is defined between the anti-scalding shield and the periphery of the shell; The anti-scalding shield is made of a low thermal conductivity material, and the thermal conductivity coefficient of the low thermal conductivity material is less than or equal to 20 W / mK.

19. The electronic device as claimed in claim 18, wherein the anti-scalding shield further comprises: One side wall structure; as well as a shield cover connected to the side wall structure, wherein the side wall structure extends from the shield cover and is connected to the shell, and the ventilation gap is defined by the periphery of the side wall structure and the shell; The shell, the side wall structure and the shield cover define a shield space, the fins are located in the shield space, and the ventilation gap is connected to the shield space.

20. The electronic device as claimed in claim 19, wherein the projection area of ​​the anti-scalding shield along a first direction is A1, the projection area of ​​the anti-scalding shield along a second direction is A2, the projection area of ​​the ventilation gap along the first direction is C1, and the projection area of ​​the ventilation gap along the second direction is C2, which satisfies the following conditions: 5%≤(C1+C2) / (A1+A2); in, The second direction is perpendicular to a circuit board surface of the printed circuit board, the first direction is perpendicular to the second direction, and the projection area of ​​the anti-scalding shield along the first direction is the projection area from the metal surface to a surface of the anti-scalding shield.

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