Electronic device

Abstract

The invention provides an electronic device. The electronic device comprises a first shell, a second shell, an antenna module and a conductive elastomer, the second housing is connected to the first housing. The antenna module comprises a circuit board, the circuit board is provided with a first surface and a second surface which are opposite to each other, and the first surface faces the first shell and is provided with an antenna pattern. The antenna pattern comprises a radiation part and a grounding part. The conductive elastomer is located between the antenna module and the first shell, one end of the conductive elastomer is connected to the grounding part, and the other end of the conductive elastomer is connected to the grounding surface of the first shell.

Description

Technical Field

[0001] The present invention relates to an electronic device, and in particular to an electronic device comprising an antenna module. Background Art

[0002] Most of the existing portable electronic devices such as laptops and smart phones have wireless communication functions. Generally speaking, laptops are equipped with antenna modules to receive or transmit radio waves. The antenna module may use copper foil or aluminum foil as a conductive element and is attached to the casing with a conductive adhesive. However, if the copper foil or aluminum foil is attached in a position that is not aligned properly, it is difficult to remove and reattach it, and it cannot be reused.

[0003] Therefore, how to improve the assembly of the conductive elements of the antenna module has become one of the problems to be solved in the art. Summary of the invention

[0004] The present invention is directed to an electronic device, which can improve the assembly yield of an antenna module and at the same time enable the antenna module to have good radiation characteristics.

[0005] The electronic device of the present invention comprises a first housing, a second housing, an antenna module and a conductive elastomer. The second housing is connected to the first housing. The antenna module comprises a circuit board, the circuit board has a first surface and a second surface opposite to each other, the first surface faces the first housing and is provided with an antenna pattern. The antenna pattern comprises a radiating portion and a grounding portion. The conductive elastomer is located between the antenna module and the first housing, one end of the conductive elastomer is connected to the grounding portion, and the other end of the conductive elastomer is connected to the grounding surface of the first housing.

[0006] In one embodiment of the present invention, the first housing has an inner surface corresponding to the antenna pattern, and an orthographic projection of the conductive elastic body on the inner surface overlaps an orthographic projection of the ground portion on the inner surface.

[0007] In an embodiment of the present invention, the first housing includes a supporting structure protruding toward the second housing, and the circuit board is disposed on the supporting structure.

[0008] In an embodiment of the present invention, an adhesive layer is disposed between the antenna pattern and the supporting structure.

[0009] In one embodiment of the present invention, the supporting structure is a non-conductor.

[0010] In an embodiment of the present invention, the supporting structure and the first shell are integrally formed.

[0011] In an embodiment of the present invention, the antenna module further comprises a base disposed on the second surface, and a locking member passes through the base and protrudes from opposite sides of the circuit board to lock the base to the first housing.

[0012] In an embodiment of the present invention, an adhesive layer is disposed between the base and the second surface of the circuit board.

[0013] In an embodiment of the present invention, the second shell includes a protrusion, which protrudes from the second shell toward the first shell to be close to the second surface.

[0014] In one embodiment of the present invention, an orthographic projection of the protrusion on the inner surface of the first shell overlaps an orthographic projection of the conductive elastic body on the inner surface of the first shell.

[0015] In one embodiment of the present invention, the protrusion is a non-conductor.

[0016] In an embodiment of the present invention, the first housing is a plastic housing and is provided with a conductive sheet as a ground plane.

[0017] In an embodiment of the present invention, the second housing is a plastic housing.

[0018] In an embodiment of the present invention, the electronic device further comprises a first body and a second body pivotally connected to each other, the second body is a logic body, and the first body is a display body and comprises a first shell and a second shell.

[0019] In an embodiment of the present invention, the width of the connection between the conductive elastic body and the grounding portion is not less than 2 mm.

[0020] In one embodiment of the present invention, the height compression amount of the conductive elastic body is not less than 30%.

[0021] Based on the above, in the electronic device of the present invention, the conductive elastomer is located between the antenna module and the first shell, and the conductive elastomer and the antenna pattern on the circuit board are arranged on the same surface, and this conductive elastomer is used instead of copper or aluminum foil as a grounding element to be connected to the grounding surface of the first shell and to the ground, thereby avoiding the problem that the copper or aluminum foil directly connected to the grounding part of the circuit board is easy to be attached incorrectly and difficult to be repeatedly pasted.

[0022] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional schematic diagram of an electronic device according to an embodiment of the present invention;

[0024] Figure 2Ais a disassembly diagram of an electronic device according to an embodiment of the present invention;

[0025] Figure 2B yes Figure 2A A cross-sectional schematic diagram of a first body;

[0026] Figure 2C yes Figure 2A A schematic diagram of an antenna module;

[0027] Figure 3 is a cross-sectional schematic diagram of an electronic device according to an embodiment of the present invention;

[0028] Figure 4A is a disassembly diagram of an electronic device according to an embodiment of the present invention;

[0029] Figure 4B yes Figure 4A A cross-sectional schematic diagram of an electronic device;

[0030] Figure 5 FIG. 4 is a cross-sectional schematic diagram of an electronic device according to an embodiment of the present invention.

[0031] Description of Reference Numerals

[0032] 10: First Unit

[0033] 20: Second body

[0034] 50: Coaxial cable

[0035] 100, 100B, 100C, 100D: Electronic devices

[0036] 101: Display screen

[0037] 110, 110B: first housing

[0038] 111: Inner surface

[0039] 112, 112B: Support structure

[0040] 120, 120D: Second shell

[0041] 121: protrusion

[0042] 130, 130C: Antenna module

[0043] 131: Circuit Board

[0044] 132: Antenna pattern

[0045] 133: Base

[0046] 140: Conductive elastomer

[0047] 150: Conductive sheet

[0048] A1: Radiation

[0049] A2: Grounding

[0050] A3: Short circuit

[0051] F1: Feed point

[0052] H1: Length

[0053] R1: Lock attachment

[0054] S1: First surface

[0055] S2: Second surface

[0056] T1, T2: Adhesion layer

[0057] W1: Width

[0058] X, Y, Z: direction DETAILED DESCRIPTION

[0059] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0060] Figure 1 It is a three-dimensional schematic diagram of an electronic device according to an embodiment of the present invention. Figure 2A It is a disassembly diagram of an electronic device according to an embodiment of the present invention. Figure 2B yes Figure 2A A cross-sectional schematic diagram of a first body. Figure 2C yes Figure 2A Schematic diagram of the antenna module. It should be noted that Figure 1 The electronic device shown is only schematically shown and is for reference only. FIG. 2A to FIG. 2C In the figure, rectangular coordinates XYZ are provided to facilitate component identification, and some non-related structures are omitted to facilitate display and identification of component parts that need to be described.

[0061] Please refer to Figure 1 The electronic device 100 of this embodiment includes a first body 10 and a second body 20 pivotally connected to each other. In this embodiment, the electronic device 100 is a notebook computer, but the type of the electronic device 100 is not limited thereto. In other embodiments, the electronic device 100 may also be a tablet computer, which is not limited thereto.

[0062] In this embodiment, the second body 20 is a logical body, and the first body 10 is a display body and includes a first shell 110 and a second shell 120. The second shell 120 is connected to the first shell 110. Specifically, the first shell 110 is the back plate of the display body, and the display screen 101 of the electronic device 100 is configured in the first shell 110, and the display surface of the display screen 101 is away from the first shell 110. The second shell 120 is assembled to the first shell 110 and covers the periphery of the display screen 101 to serve as a display frame and fix it, but the present invention is not limited to this.

[0063] Please refer to Figure 2A and Figure 2B In this embodiment, the electronic device 100 further includes an antenna module 130 and a conductive elastic body 140. Here, the conductive elastic body 140 is, for example, conductive foam, but the present invention is not limited thereto.

[0064] In the present embodiment, the antenna module 130 includes a circuit board 131, and the circuit board 131 has a first surface S1 and a second surface S2 opposite to each other. The first surface S1 faces the first shell 110 and is provided with an antenna pattern 132. The antenna pattern 132 includes a radiation portion A1 and a grounding portion A2, but the present invention is not limited thereto. The grounding portion A2 is located between the radiation portion A1 and the display screen 101. The grounding portion A2 is closer to the display screen 101 than the radiation portion A1, but the present invention is not limited thereto. It should be noted that, Figure 2B The dotted frame in the figure represents the relative position of the radiation portion A1 and the ground portion A2 , and the conductive pattern can be properly designed according to actual needs, and the present invention is not limited thereto.

[0065] In one embodiment, the width W1 ( Figure 2A ) is not less than 2 mm, but the present invention is not limited thereto. The width W1 is, for example, parallel to the X direction, but the present invention is not limited thereto. In one embodiment, the height compression amount of the conductive elastic body 140 in the Z direction is not less than 30%, but the present invention is not limited thereto.

[0066] In one embodiment, please refer to Figure 2C The antenna pattern 132 further includes a short-circuit portion A3, which connects the radiation portion A1 and the ground portion A2, but the present invention is not limited thereto. In this embodiment, a feed point F1 is connected by a coaxial cable 50 ( Figure 2B) is fed, but in other embodiments, the layout of the antenna pattern 132 can be appropriately adjusted according to the actual required transceiver frequency. As long as the antenna pattern 132 is located on the first surface S1 and faces the first housing 110, it is within the scope of the invention, and the invention is not limited thereto. Here, the length H1 of the grounding portion A2 in the X direction is at least greater than 2 mm to be suitable for connecting with the conductive elastic body 140, but the invention is not limited thereto.

[0067] Please refer to Figure 2B In this embodiment, the conductive elastic body 140 is located between the antenna module 130 and the first housing 110, and the thickness of the conductive elastic body 140 in the Z direction is at least greater than 2 mm, but the present invention is not limited thereto. One end of the conductive elastic body 140 is connected to the grounding portion A2, and the other end of the conductive elastic body 140 is connected to the grounding surface of the first housing 110.

[0068] Specifically, in this embodiment, the first housing 110 has an inner surface 111 corresponding to the antenna pattern 132, and the circuit board 131 is parallel to the inner surface 111. The orthographic projection of the conductive elastic body 140 on the inner surface 111 overlaps the orthographic projection of the ground portion A2 on the inner surface 111.

[0069] In this embodiment, the first housing 110 is a plastic housing and is provided with a conductive sheet 150 as a ground plane, but the present invention is not limited thereto. Here, the conductive sheet 150 can be the original aluminum foil or copper foil of the display screen 101, or the existing aluminum foil or copper foil on the first housing 110, and there is no need to additionally provide aluminum foil or copper foil on the antenna module 130.

[0070] Under the above configuration, the antenna module 130 is composed of a circuit board 131, a conductive elastomer 140 and a coaxial cable 50, wherein the conductive elastomer 140 and the antenna pattern 132 on the circuit board 131 are arranged on the same surface, that is, the first surface S1. In this way, the grounding portion A2 of the antenna module 130 can use the conductive elastomer 140 as a grounding element to be connected to the grounding surface of the first shell 110 and grounded. The advantage of this design is that the traditional process of directly connecting copper foil or aluminum foil to the grounding portion of the antenna and then sticking the copper foil or aluminum foil to the casing can be omitted, thereby avoiding the problem of attachment errors and difficulty in repeated sticking. The electronic device of this embodiment can improve the assembly yield and convenience, and at the same time enable the antenna module to have good radiation characteristics.

[0071] For more details, please refer to Figure 2BIn this embodiment, the first housing 110 includes a support structure 112 protruding toward the second housing 120. Here, the support structure 112 is a non-conductor, such as a plastic material, but not limited thereto. In one embodiment, the support structure 112 and the first housing 110 are integrally formed, but the present invention is not limited thereto.

[0072] In this embodiment, the circuit board 131 is disposed on the support structure 112. Specifically, the first surface S1 contacts the support structure 112. When the inner surface 111 of the first housing 110 is uneven, the support structure 112 can be used to make corrections, so as to facilitate the positioning of the circuit board 131 and stabilize the abutting relationship between the first surface S1 and the conductive elastic body 140. In addition, since the support structure 112 protrudes from the inner surface 111 of the first housing 110, the circuit board 131 can be raised and there is a gap between the inner surface 111, so that the circuit board 131 can be easily taken out during maintenance.

[0073] Furthermore, in this embodiment, an adhesive layer T1 is disposed between the antenna pattern 132 and the support structure 112 to strengthen the fixing of the circuit board 131. In other embodiments, the circuit board 131 and the support structure 112 may also be connected in other appropriate ways, and the present invention is not limited thereto.

[0074] In addition, please refer to Figure 2A In the present embodiment, the conductive elastomer 140 is first fixed to the first surface S1 by conductive adhesive. However, in other embodiments, the conductive elastomer 140 may also be first fixed to the grounding surface of the first shell 110 by conductive adhesive. The present invention is not limited to this.

[0075] Other embodiments will be listed below for illustration. It must be noted that the following embodiments use the component numbers and some contents of the previous embodiments, wherein the same numbers are used to represent the same or similar components, and the description of the same technical contents is omitted. The description of the omitted parts can be referred to the previous embodiments, and the following embodiments will not be repeated.

[0076] Figure 3 is a cross-sectional schematic diagram of an electronic device according to an embodiment of the present invention. Figure 3 In this embodiment, the electronic device 100B and Figure 2B The electronic device 100 is slightly different from the electronic device 100 of the embodiment, and the main difference is that: in this embodiment, the first housing 110B is a metal housing, and the first housing 110B and the plastic support structure 112B are made by injection molding (insert molding) or bonding (bonding), but the present invention is not limited to this. In this way, the grounding portion A2 of the antenna module 130 can be connected to the first housing 110B made of metal material by the conductive elastic body 140 and grounded.

[0077] Figure 4A It is a disassembly diagram of an electronic device according to an embodiment of the present invention. Figure 4B yes Figure 4A Please refer to the cross-sectional diagram of the electronic device. Figure 4A and Figure 4B In this embodiment, the electronic device 100C and Figure 2B The electronic device 100 of the embodiment of the present invention is slightly different, and the main difference is that the antenna module 130C also includes a base 133, which is disposed on the second surface S2, and at least one locking member R1 passes through the base 133 and protrudes from the opposite sides of the circuit board 131 to lock the base 133 to the first shell 110. However, in other embodiments, the base 133 and the first shell 110 can also be fixed by snapping, riveting or bonding, etc., and the present invention is not limited to this. Here, the base 133 is a non-conductor, and the material is, for example, plastic, but the present invention is not limited to this.

[0078] In this embodiment, an adhesive layer T2 is disposed between the base 133 and the second surface S2 of the circuit board 131, so that the base 133 can be more firmly pressed against the circuit board 131. In other embodiments, the circuit board 131 and the base 133 may also be connected in other appropriate ways, which is not limited by the present invention.

[0079] Figure 5 is a cross-sectional schematic diagram of an electronic device according to an embodiment of the present invention. Figure 5 In this embodiment, the electronic device 100D and Figure 2B The electronic device 100 is slightly different from the electronic device 100 of FIG. 1 , and the main difference is that the second housing 120D includes a protrusion 121, and the protrusion 121 protrudes from the second housing 120 toward the first housing 110 to be close to the second surface S2. In one embodiment, the protrusion 121 can also directly contact the second surface S2 to strengthen the force of the antenna module 130 pressing the conductive elastic body 140, and the present invention is not limited to this.

[0080] In this embodiment, the orthographic projection of the protrusion 121 on the inner surface 111 of the first housing 110 overlaps the orthographic projection of the conductive elastic body 140 on the inner surface 111 of the first housing 110. In this way, the protrusion 121 can be used to limit the antenna module 130 to prevent the antenna module 130 from bouncing due to the conductive elastic body 140.

[0081] In this embodiment, the second housing 120 is a plastic housing, but the invention is not limited thereto. In this embodiment, the protrusion 121 is a non-conductor, such as a plastic material, but the invention is not limited thereto. In one embodiment, the protrusion 121 and the second housing 120 are integrally formed, but the invention is not limited thereto.

[0082] In summary, in the electronic device of the present invention, the conductive elastomer is located between the antenna module and the first shell, and the conductive elastomer and the antenna pattern on the circuit board are arranged on the same surface, and the conductive elastomer is used as a grounding element instead of copper or aluminum foil to be connected to the ground surface of the first shell and grounded. The advantage of this design is that the traditional process of directly connecting copper foil or aluminum foil to the ground part of the antenna module and then sticking the copper foil or aluminum foil to the casing can be omitted, thereby avoiding the problem of attachment errors and difficulty in repeated sticking. The electronic device of the present invention can improve the assembly yield and convenience, and at the same time make the antenna module have good radiation characteristics.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic device, characterized in that: include: a first shell; A second shell connected to the first shell; The antenna module comprises a circuit board, wherein the circuit board has a first surface and a second surface opposite to each other, wherein the first surface faces the first housing and is provided with an antenna pattern, wherein the antenna pattern comprises a radiation portion and a ground portion; as well as The conductive elastic body is located between the antenna module and the first shell, one end of the conductive elastic body is connected to the grounding portion, and the other end of the conductive elastic body is connected to the grounding surface of the first shell.

2. The electronic device according to claim 1, characterized in that: The first shell has an inner surface corresponding to the antenna pattern, and an orthographic projection of the conductive elastic body on the inner surface overlaps an orthographic projection of the ground portion on the inner surface.

3. The electronic device according to claim 1, characterized in that: The first shell includes a supporting structure protruding toward the second shell, and the circuit board is configured on the supporting structure.

4. The electronic device according to claim 3, characterized in that: An adhesive layer is provided between the antenna pattern and the supporting structure.

5. The electronic device according to claim 3, characterized in that: The support structure is a non-conductor.

6. The electronic device according to claim 3, characterized in that: The supporting structure and the first shell are integrally formed.

7. The electronic device according to claim 1, characterized in that: The antenna module further comprises a base, which is disposed on the second surface. A locking member passes through the base and protrudes from two opposite sides of the circuit board to lock the base to the first shell.

8. The electronic device according to claim 7, characterized in that: An adhesive layer is disposed between the base and the second surface of the circuit board.

9. The electronic device according to claim 1, characterized in that: The second shell includes a protrusion, and the protrusion protrudes from the second shell toward the first shell to be close to the second surface.

10. The electronic device according to claim 9, characterized in that: The orthographic projection of the protrusion on the inner surface of the first shell overlaps with the orthographic projection of the conductive elastic body on the inner surface of the first shell.

11. The electronic device according to claim 9, characterized in that: The protrusion is a non-conductor.

12. The electronic device according to claim 1, characterized in that: The first shell is a plastic shell and is provided with a conductive sheet as the ground plane.

13. The electronic device according to claim 1, characterized in that: The second shell is a plastic shell.

14. The electronic device according to claim 1, characterized in that: The invention also includes a first body and a second body which are pivotally connected to each other. The second body is a logic body. The first body is a display body and includes the first shell and the second shell.

15. The electronic device according to claim 1, characterized in that: The width of the connection between the conductive elastic body and the grounding portion is not less than 2 mm.

16. The electronic device according to claim 1, characterized in that: The height compression amount of the conductive elastic body is not less than 30%.

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