Electronic device

Abstract

The present disclosure relates to an electronic device. The electronic device comprises a middle frame comprising a frame radiator and a metal floor, the frame radiator being located outside the metal floor, the frame radiator being provided with a first side key opening; a metal key, the metal key being provided through the first side key opening and located outside the metal floor, the metal key comprising a metal key cap and a metal spring connected to a side of the metal key cap facing the metal floor, the metal key cap being provided in insulation between the frame radiator and the metal floor, and the metal spring being provided in insulation between the frame radiator and the metal floor.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and more particularly to an electronic device. Background Technology

[0002] In related technologies, a hard-to-hard conductive contact exists between the metal side key and the radiator through which the metal side key passes, causing radio frequency signal coupling and resulting in noise within the target frequency band of the radiator. To address this, related technologies propose connecting the metal side key and the metal ground plane using conductive foam to eliminate noise.

[0003] However, due to the frequent pressing of the metal side keys, the conductive foam is prone to a decrease in conductivity due to long-term mechanical pressure or aging, which can cause noise recurrence or even radiative straying. Utility Model Content

[0004] This disclosure provides an electronic device to address the shortcomings of the related art.

[0005] According to embodiments of this disclosure, an electronic device is provided, comprising: The middle frame includes a frame radiator and a metal floor, the frame radiator being located outside the metal floor, and the frame radiator having a first side keyway. A metal button, which passes through the first side key opening and is located outside the metal base plate, the metal button includes a metal keycap and a metal spring connected to the side of the metal keycap facing the metal base plate, the metal keycap is insulated from the frame radiator and the metal base plate, and the metal spring is insulated from the frame radiator and the metal base plate.

[0006] Optional, also includes: An insulating filler portion fills a portion of the gap between the frame radiator and the metal floor, and the end of the metal spring sheet opposite to the metal keycap extends into the insulating filler portion.

[0007] Optionally, the insulating filler fills the gap between the metal spring and the frame radiator, as well as the gap between the metal spring and the metal floor.

[0008] Optionally, it may also include an insulating connector that connects the metal keycap and the metal floor.

[0009] Optionally, the insulating connector may include insulating foam.

[0010] Optionally, the metal button is coupled with the frame radiator to generate current, and the difference between the resonant frequency of the metal button and the resonant frequency of the frame radiator when it covers the target frequency band is less than or equal to 300MHz.

[0011] Optionally, in the length direction of the frame radiator, the length of the metal keycap and the metal spring after connection is less than the length of the frame radiator, and greater than the length of the metal keycap.

[0012] Optionally, the middle frame further includes a metal side frame segment, which cooperates with the frame radiator to form a gap; The metal side frame segment includes a second side keyway.

[0013] Optionally, the frame radiator covers the B41 frequency band.

[0014] Optionally, one end of the frame radiator is grounded and the other end forms a gap, and the 1 / 4 wavelength resonant mode of the frame radiator covers the target frequency band.

[0015] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: As can be seen from the above embodiments, the metal key and the middle frame of this disclosure are insulated from each other. The insulation between the metal key and the frame radiator and the metal ground helps to eliminate in-band noise of the frame radiator. On the other hand, the insulation blocks the electromagnetic path between the metal keycap and the metal ground, which helps to eliminate radiated stray radiation problems.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] Figure 1 This is a partial schematic diagram of an electronic device according to an exemplary embodiment.

[0019] Figure 2 This is a partial schematic diagram of another electronic device according to an exemplary embodiment.

[0020] Figure 3 This is a graph showing the radiation efficiency and reflection coefficient of a frame radiator in an electronic device, with or without a metal button as a radiator, according to an exemplary embodiment. Detailed Implementation

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0022] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0023] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0024] Figure 1 This is a partial schematic diagram of an electronic device according to an exemplary embodiment. Figure 1 As shown, the electronic device's frame includes a frame radiator 1 and a metal floor 2. The frame radiator 1 and the metal floor 2 can be spaced apart to achieve a floating arrangement of the frame radiator 1, or the frame radiator 1 can be connected to the metal floor 2 via metal ribs. The two can be an integrated structure or a connection achieved later through processes and related components. The frame radiator 1 is located in the vertical segment of the frame, which can be understood as the frame radiator being located on the side frame of the electronic device.

[0025] The frame radiator 1 includes a first side key opening 11. The electronic device also includes a metal button 3, which passes through the first side key opening 11 and is located on the outside of the metal base 2. The metal button 3 can be a power button or a volume button. The metal button 3 includes a metal keycap 31 and a metal spring 32 connected to the side of the metal keycap 31 facing the metal base 2. The metal keycap 31 passes through the first side key opening 11 and is used as the user's operating object. When the user presses the metal keycap 31, the metal spring 32 deforms accordingly. After the user releases the pressure, the metal spring 32 returns to its original shape, driving the metal keycap 31 to reset towards the outside of the electronic device.

[0026] Furthermore, the metal keycap 31 is insulated from the frame radiator 1 and the metal ground plate 2, and the metal spring 32 is also insulated from the frame radiator 1 and the metal ground plate 2. Based on this design, the metal key 3 is insulated from the middle frame. The insulation between the metal key 3 and the frame radiator 1 and the metal ground plate 2 helps to eliminate in-band clutter from the frame radiator 1. On the other hand, this insulation also blocks the electromagnetic path between the metal keycap 31 and the metal ground plate 2, which helps to eliminate radiated stray radiation problems.

[0027] In some embodiments, still using Figure 1 As shown, the electronic device also includes an insulating filling part 4, which fills the gap between the frame radiator 1 and the metal floor 2, and the end of the metal spring 32 away from the metal keycap 31 can extend into the insulating filling part 4, so that the end of the metal spring 32 can be fixed by the insulating filling part 4, providing a basis for the deformation of the metal spring 32.

[0028] The insulating filler 4 fills the gaps between the metal spring 32 and the frame radiator 1, as well as the gaps between the metal spring 32 and the metal floor 2. The insulating filler 4 can be irregularly shaped to better achieve the insulating layout between the metal spring 32, the frame radiator 1, and the metal floor 2.

[0029] In some examples, the electronic device also includes an insulating connector 5. The insulating filler 4 connects the metal keycap 31 and the metal base plate 2. On the one hand, the insulating connector 5 supports the metal keycap 31, improving stability and providing a better tactile feel. On the other hand, the insulating filler 4 helps to eliminate the stray radiation problem caused by conductive foam in related technologies. The insulating connector 5 may include insulating foam, insulating plastic, or insulating rubber, etc.

[0030] In the above embodiments, such as Figure 2 As shown, the metal button 3 and the frame radiator 1 are coupled, thereby generating a coupling current on the metal button 3. This coupling current can excite the resonance on the metal button 3, and the difference between the resonant frequency of the metal button 3 and the resonant frequency of the frame radiator 1 when it radiates and covers the target frequency band is less than or equal to 300. This is to improve the radiation performance and radiation bandwidth of the frame radiator 1 in the target frequency band through the parasitic resonance when the metal button 3 is used as an electrical parasitic branch.

[0031] For example, such as Figure 3 As shown, taking the target frequency band of the frame radiator 1 as the B41 band as an example, Figure 3The solid line represents the radiation efficiency and reflection coefficient curves when the metal button 3 is used as a parasitic stub of the frame radiator 1, and the dashed line represents the radiation efficiency and reflection coefficient curves when the metal button 3 is not used as a parasitic stub of the frame radiator 1. The comparison shows that by constructing the metal button 3 as a parasitic stub, the reflection coefficient and radiation of the frame radiator 1 are both improved in the B41 frequency band.

[0032] It is understandable that, since the first side keyhole 11 is provided on the frame radiator 1, the length of the first side keyhole 11 depends on the metal key 3. Under the conventional length requirements of the metal key 3, the length of the frame radiator 1 may be too long for the target frequency band and the resonant mode radiating the target frequency band, leading to matching difficulties. Therefore, in the embodiments of this disclosure, in the length direction of the frame radiator 1, the length of the metal keycap 31 and the metal spring 32 after connection is less than the length of the frame radiator 1 but greater than the length of the metal keycap 31. In this way, by relatively shortening the length, it is easier to excite the resonance of the target frequency band when the frame radiator 1 is relatively long, which helps to solve the size limitation defects caused by the configuration of the metal key 3.

[0033] For example, one end of the frame radiator 1 is grounded, and the other end forms a gap. The 1 / 4 wavelength resonant mode of the frame radiator 1 covers the target frequency band. When the length of the frame radiator 1 is slightly greater than 1 / 4 wavelength, the target frequency band can be better matched by a smaller metal button 3.

[0034] In the above embodiments, the middle frame also includes a metal side frame segment 6, which cooperates with the frame radiator 1 to form a gap, and the metal side frame segment 6 includes a second side key opening 61. This design provides space for more side key layouts. On the other hand, given that the placement and length of the metal button 3 are higher priority design standards, the position of the gap between the frame radiator 1 and the metal side frame segment 6 is more critical. Therefore, the size of the frame radiator 1 is more limited. Thus, it is advantageous to solve this length limitation by constructing the metal button 3 as a parasitic branch in this disclosure, thereby improving the radiation performance and bandwidth of the frame radiator 1.

[0035] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0036] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electronic device, characterized in that, include: The middle frame includes a frame radiator and a metal floor, the frame radiator being located outside the metal floor, and the frame radiator having a first side keyway. A metal button, which passes through the first side key opening and is located outside the metal base plate, the metal button includes a metal keycap and a metal spring connected to the side of the metal keycap facing the metal base plate, the metal keycap is insulated from the frame radiator and the metal base plate, and the metal spring is insulated from the frame radiator and the metal base plate.

2. The electronic device according to claim 1, characterized in that, Also includes: An insulating filler portion fills a portion of the gap between the frame radiator and the metal floor, and the end of the metal spring sheet opposite to the metal keycap extends into the insulating filler portion.

3. The electronic device according to claim 2, characterized in that, The insulating filling portion fills the gap between the metal spring and the frame radiator, as well as the gap between the metal spring and the metal floor.

4. The electronic device according to claim 1, characterized in that, It also includes an insulating connector that connects the metal keycap and the metal floor.

5. The sub-device according to claim 4, characterized in that, The insulating connector includes insulating foam.

6. The electronic device according to claim 1, characterized in that, The metal button couples with the frame radiator to generate current, and the difference between the resonant frequency of the metal button and the resonant frequency of the frame radiator when it covers the target frequency band is less than or equal to 300MHz.

7. The electronic device according to claim 6, characterized in that, In the length direction of the frame radiator, the length of the metal keycap and the metal spring after connection is less than the length of the frame radiator, and greater than the length of the metal keycap.

8. The electronic device according to claim 7, characterized in that, The middle frame also includes a metal side frame segment, which cooperates with the frame radiator to form a gap; The metal side frame segment includes a second side keyway.

9. The electronic device according to claim 7, characterized in that, The frame radiator covers the B41 frequency band.

10. The electronic device according to claim 1, characterized in that, One end of the frame radiator is grounded, and the other end forms a gap. The 1 / 4 wavelength resonant mode of the frame radiator covers the target frequency band.

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