Electronic device

Abstract

The utility model discloses electronic equipment, and relates to the technical field of communication, the electronic equipment comprises a frame body and a metal reinforcing plate, the frame body comprises a first radiator and a second radiator, and a break joint is arranged between the first radiator and the second radiator; the metal reinforcing plate is arranged opposite to the first inner wall of the frame body, a medium is filled between the metal reinforcing plate and the first inner wall of the frame body, and the first inner wall comprises the inner wall of the first radiator and the inner wall of the second radiator; in the thickness direction of the electronic equipment, the size of at least one side area of the metal reinforcing plate is smaller than the size of the middle part of the metal reinforcing plate, and the middle part of the metal reinforcing plate directly faces the breaking joint.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to an electronic device. BACKGROUND

[0002] At present, multiple antennas are integrated on most electronic devices such as mobile phones, and the antennas are usually arranged by using the device frame. A breakpoint is arranged between different antenna frames, and the structure strength at the breakpoint is relatively weak, which causes the aluminum-plastic combined position at the breakpoint to be prone to cracking. In the related art, a metal plate is additionally arranged at the aluminum-plastic combined position at the breakpoint to enhance the structure strength, so as to solve the problem that the aluminum-plastic combined position is prone to cracking. However, the additional metal plate affects the radiation efficiency of the nearby antenna, which causes poor antenna performance. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application aim to provide a camera module and an electronic device, which can solve the problem that the additional metal plate in the prior art affects the radiation efficiency of the nearby antenna, which causes poor antenna performance.

[0004] In a first aspect, embodiments of the present application provide an electronic device, comprising: a frame and a metal reinforcing plate, the frame comprising a first radiator and a second radiator, and the first radiator and the second radiator having a break joint therebetween;

[0005] The metal reinforcing plate is arranged opposite to a first inner wall of the frame, and a medium is filled between the metal reinforcing plate and the first inner wall of the frame, and the first inner wall comprises an inner wall of the first radiator and an inner wall of the second radiator;

[0006] In the thickness direction of the electronic device, the size of at least one side region of the metal reinforcing plate is smaller than the size of a middle portion of the metal reinforcing plate, and the middle portion of the metal reinforcing plate is opposite to the break joint.

[0007] In embodiments of the present application, the structure of the metal reinforcing plate of the electronic device is improved, and at least one side region is partially removed in the thickness direction of the electronic device, so that the thickness thereof is smaller than the thickness of the middle portion, thereby being capable of reducing the opposite area between the metal reinforcing plate and the frame and reducing the coupling capacitance between the metal reinforcing plate and the antenna radiator on the frame, so as to reduce the influence of the metal reinforcing plate on the radiation efficiency of the nearby antenna radiator compared with the prior art, and to improve the antenna performance of the electronic device. In addition, the thickness of the middle portion of the metal reinforcing plate opposite to the break joint is large, and therefore the effect of enhancing the structure strength of the frame at the breakpoint can be ensured.

[0008] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0010] Fig. 1a is a structural schematic diagram of an electronic device provided by an embodiment of the present application;

[0011] Fig. 1b is a partial enlarged schematic diagram of an antenna structure of an electronic device provided by an embodiment of the present application;

[0012] Fig. 1c is a schematic diagram of an XZ cross section of an electronic device provided by an embodiment of the present application;

[0013] Fig. 1d is a schematic diagram of a YZ cross section of an electronic device provided by an embodiment of the present application;

[0014] Fig. 2a is a structural schematic diagram of an existing electronic device;

[0015] Fig. 2b is a schematic diagram of an XZ cross section of a structural schematic diagram of an existing electronic device;

[0016] Fig. 2c is a schematic diagram of a YZ cross section of a structural schematic diagram of an existing electronic device;

[0017] Fig. 3 is a structural schematic diagram of a switch matching circuit connected on a metal reinforcing plate provided by an embodiment of the present application;

[0018] Figs. 4a-4c is a radiation pattern of an ANT2 antenna when SW1 is switched to different states according to an embodiment; Fig. 3 is a radiation pattern of an ANT2 antenna when SW1 is switched to different states according to an embodiment;

[0019] Fig. 5 is a comparison diagram of efficiency of an ANT2 antenna when SW1 is switched to different states of an electronic device according to an embodiment; Fig. 3 is a comparison diagram of efficiency of an ANT2 antenna when SW1 is switched to different states of an electronic device according to an embodiment;

[0020] Fig. 6 is a comparison diagram of efficiency of an ANT2 antenna when SW2 is switched to different states of an electronic device according to an embodiment; Fig. 3 is a comparison diagram of efficiency of an ANT2 antenna when SW2 is switched to different states of an electronic device according to an embodiment;

[0021] Fig. 7a-7c is a structural schematic diagram of a metal reinforcing plate of an electronic device using different return paths provided by an embodiment of the present application. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same reference numerals throughout the several disclosed embodiments. The embodiments described below are examples for explaining the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present application.

[0023] The terms "first", "second", and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a particular sequential or chronological order. It should be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the present application are capable of functioning in other sequences than the ones described or otherwise illustrated herein. The subject matter of the first, second, etc. are typically of a different kind and the number of objects is not limited by such terms. For example, a first object can be one or more. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the front and rear associated objects.

[0024] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The electronic device provided by the embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and their application scenarios.

[0027] Please refer to Figs. 1a-1d , Figs. 1a-1d The structural schematic diagram of the electronic device provided by the embodiments of the present application is shown in FIG. 1. As shown in FIG. 1, the electronic device comprises: Figs. 1a-1d

[0028] ​The frame 10 includes a first radiator 11 and a second radiator 12, and a gap 30 is formed between the first radiator 11 and the second radiator 12;

[0029] The metal reinforcing plate 20 is arranged opposite to the first inner wall of the frame 10, and a medium is filled between the metal reinforcing plate 20 and the first inner wall of the frame 10, wherein the first inner wall includes the inner wall of the first radiator 11 and the inner wall of the second radiator 12.

[0030] In the thickness direction of the electronic device, the size of at least one side region of the metal reinforcing plate 20 is smaller than the size of the middle part of the metal reinforcing plate 20, and the middle part of the metal reinforcing plate 20 is opposite to the gap 30.

[0031] In the prior art, the frame of an electronic device is usually used as an antenna radiator to design an antenna of a required frequency band. In the embodiment of the present application, as shown in Fig. 1a two antenna radiators are designed by using the frame 10 of the electronic device, which are the first radiator 11 and the second radiator 12, wherein the first radiator 11 can be used as an ANT1 antenna, and the second radiator 12 can be used as an ANT2 antenna, and the two antennas can work in different frequency bands. As shown in Fig. 1b there is a gap 30 between the first radiator 11 and the second radiator 12, and therefore the structure of the frame 10 at the gap 30 is relatively weak. If no structural reinforcement is performed, the aluminum-plastic combination at the gap 30 is prone to cracking during soft extrusion. Therefore, a metal reinforcing plate 20 can be additionally arranged at the gap 30 and the first radiator 11 and the second radiator 12 to enhance the structural strength at the gap 30 and prevent the aluminum-plastic combination at the gap 30 from cracking. It should be noted that the metal reinforcing plate 20 does not contact the first radiator 11 and the second radiator 12. Specifically, the metal reinforcing plate 20 can be arranged at the positions opposite to the inner walls of the first radiator 11 and the second radiator 12 and the gap 30, and a medium such as plastic or other insulating material is filled between the metal reinforcing plate 20 and the frame 10 to form a certain spacing therebetween, wherein the two side regions of the metal reinforcing plate 20 are opposite to the first radiator 11 and the second radiator 12 respectively, and the middle part of the metal reinforcing plate 20 is opposite to the gap 30.

[0032] Generally, the structural strength of metal reinforcement is better than that of non-metal reinforcement, and the longer the length of metal reinforcement, the larger the cross-sectional area, and the closer the distance to the frame, the better the structural strength. However, the above two points are deteriorated for the antenna performance, and the influence on the antenna efficiency of the scheme without metal reinforcement is close to 2dB, that is, the antenna performance is reduced by 30%.

[0033] In the embodiments of the present application, in order to reduce the influence of the metal reinforcing plate 20 on the radiation efficiency of the first and second radiators 11 and 12, the structure of the metal reinforcing plate is improved based on the existing metal reinforcing scheme. Specifically, the size of one side or both sides of the metal reinforcing plate in the thickness direction of the electronic device can be reduced based on the existing scheme, so as to reduce the opposite area of the metal reinforcing plate 20 and the frame 10, and ensure that the size of the middle part of the metal reinforcing plate 20 opposite the gap 30 in the thickness direction of the electronic device is large, so as to ensure the strength of the metal reinforcing plate 20 and prevent the metal reinforcing plate 20 from breaking.

[0034] In order to better reflect the improved design of the embodiments of the present application, the structure design of the metal reinforcing plate in the embodiments of the present application can be compared and described based on the existing metal reinforcing scheme as shown in Figs. 2a-2c

[0035] As shown in Fig. 2a , the metal reinforcing plate 200 in the existing scheme is arranged opposite to the ANT1 antenna and the ANT2 antenna, as shown in Fig. 2b and Fig. 2c , the structure of the metal reinforcing plate 200 is a regular rectangular structure, and the overall size is large.

[0036] As shown in Fig. 1c and Fig. 1d , the structure of the metal reinforcing plate 20 in the embodiments of the present application is not a regular rectangle, but on the basis of the structure of the metal reinforcing plate 200 as shown in Fig. 2a , part of the side structure is removed, so that the size of one side or both sides of the metal reinforcing plate 20 in the thickness direction of the electronic device is smaller than the size of the middle part, and the overall size is relatively small. In this way, the opposite area of the metal reinforcing plate 20 and the first and / or second radiators 11 and 12 is small, the coupling capacitance between them is reduced, and the influence of the metal reinforcing plate 20 on the radiation efficiency of the antenna radiator is reduced.

[0037] Optionally, the metal reinforcing plate 20 is a convex structure, and the middle part of the metal reinforcing plate 20 protrudes in the thickness direction of the electronic device.

[0038] In some embodiments, the size of both sides of the metal reinforcing plate in the thickness direction of the electronic device can be reduced based on the existing scheme, and the middle part protrudes in the thickness direction of the electronic device, forming a structure as shown in Fig. 1d ​The two sides of the shown convex structure are low and the middle is high. In this way, on the one hand, the area of the metal reinforcing plate 20 opposite the first radiator 11 and the second radiator 12 can be reduced, and the influence on the radiation efficiency of the first radiator 11 and the second radiator 12 can be reduced; on the other hand, the middle convex structure can ensure the strength of the metal reinforcing plate 20, prevent the metal reinforcing plate 20 from being broken, and ensure the effect of enhancing the structural strength at the gap 30.

[0039] It should be noted that the metal reinforcing plate 20 will affect the ANT2 antenna to a certain extent and cause a certain frequency deviation. Therefore, in actual application, the frequency deviation can be corrected by adjusting the matching of the ANT2 antenna.

[0040] Optionally, the distance between the metal reinforcing plate 20 and the first inner wall is greater than 1 mm.

[0041] In some embodiments, the distance between the metal reinforcing plate and the frame can be increased on the basis of the existing scheme, that is, the distance between the metal reinforcing plate 20 and the first radiator 11 and the second radiator 12 is increased, so as to further reduce the coupling capacitance between the metal reinforcing plate 20 and the first radiator 11 and the second radiator 12, thereby reducing the influence of the metal reinforcing plate 20 on the radiation efficiency of the first radiator 11 and the second radiator 12.

[0042] Specifically, as shown in FIG. 1, Fig. 2b In the existing scheme, the distance d' between the metal reinforcing plate 200 and the frame 100 is 1 mm. In the embodiments of the present application, as shown in FIG. 2, Fig. 1c The distance d between the metal reinforcing plate 20 and the frame 10 can be increased to 1.5 mm. In specific implementation, the size of the metal reinforcing plate in the width direction of the electronic device, that is, the size in the XZ cross section, can be reduced, as shown in FIG. 3. Fig. 2b In the existing metal reinforcing plate 200, the width w' is 2 mm. In the embodiments of the present application, as shown in FIG. 4, Fig. 1c The width w of the metal reinforcing plate 20 is reduced to 1 mm, so that the distance d between the metal reinforcing plate 20 and the frame 10 is increased to 1.5 mm.

[0043] Optionally, the size of the metal reinforcing plate 20 in the length direction of the frame 10 is less than 9.5 mm and greater than or equal to 8 mm.

[0044] In some embodiments, the length of the metal reinforcing plate can be reduced on the basis of the existing scheme, and preferably, the length can be reduced to the minimum length that can ensure the structural strength, such as the acceptable minimum length of 8 mm. In this way, the area of the metal reinforcing plate 20 opposite the first radiator 11 and the second radiator 12 can be further reduced, and the influence on the radiation efficiency of the first radiator 11 and the second radiator 12 can be reduced.

[0045] Exemplarily, as shown in FIG. 5,Fig. 2b As shown, the length l' of the metal reinforcing plate 200 in the prior art is 9.5 mm. In the embodiments of the present application, as shown in Fig. 1c the length l of the metal reinforcing plate 20 is reduced to 8 mm.

[0046] Optionally, the size of the middle portion of the metal reinforcing plate 20 in the length direction of the frame 10 is between 2 mm and 4 mm, and / or the size of the middle portion of the metal reinforcing plate 20 in the thickness direction of the electronic device is less than 3 mm.

[0047] In some embodiments, on the basis of the prior art, a region with a certain length and thickness on both sides of the metal reinforcing plate can be removed, so that the length l1 of the middle raised portion of the metal reinforcing plate 20 is between 2 mm and 4 mm, and the metal reinforcing plate 20 has a basic structural strength.

[0048] For example, as shown in Fig. 1d the total length l of the metal reinforcing plate 20 is 8 mm, the length l2 of the region on both sides is 2.5 mm, and the length of the middle raised portion l1 is 3 mm.

[0049] In some embodiments, on the basis of the prior art, the size of the metal reinforcing plate in the thickness direction of the electronic device can also be reduced as a whole, so as to further reduce the opposite area of the metal reinforcing plate 20 and the first radiator 11 and the second radiator 12, and reduce the influence on the radiation efficiency of the first radiator 11 and the second radiator 12.

[0050] Specifically, as shown in Fig. 2b and Fig. 2c the size h' of the metal reinforcing plate 200 in the thickness direction of the electronic device in the prior art is 3 mm. In the embodiments of the present application, for example, as shown in Fig. 1c and Fig. 1d the size h of the metal reinforcing plate 20 in the thickness direction of the electronic device can be reduced to 2 mm, wherein the thickness h2 of the region on both sides of the metal reinforcing plate 20 is 1 mm, and the thickness h1 of the middle raised portion is 2 mm, which is 1 mm thicker than the region on both sides.

[0051] Optionally, as shown in Fig. 3 and Figs. 7a-7c the metal reinforcing plate 20 is grounded through at least one switch matching circuit 40, the switch matching circuit 40 includes a switching switch 41 and a plurality of matching branches 42, the switching switch 41 includes a stationary end and a plurality of movable ends, the plurality of movable ends correspond one-to-one to the plurality of matching branches, the matching branches are respectively electrically connected to the corresponding movable ends, and the stationary end is grounded.

[0052] When the switching switch 41 turns on different matching branches 42 in the plurality of matching branches 42, the metal reinforcing plate 20 corresponds to different equivalent electrical lengths.

[0053] Considering that the metal reinforcing plate 20 exists to solve the structural strength problem, the influence on the nearby antenna is negative, and the consistency of the influence degree on the antenna is the same due to the plastic inside the frame of the electronic device. In some embodiments, to reasonably utilize the metal reinforcing plate 20, so that the metal reinforcing plate 20 has a positive effect on the antenna, one or more switch matching circuits can be connected to the metal reinforcing plate 20 to adjust the directional diagram or bandwidth of the frame antenna.

[0054] Specifically, as shown in Fig. 3 and Figs. 7a-7c One or more switch matching circuits 40 can be connected to one side of the metal reinforcing plate 20, and the switch matching circuit 40 is connected to the ground. Each switch matching circuit 40 can include a switching switch 41 and a plurality of matching branches 42, and the plurality of matching branches 42 are respectively connected to different points on the metal reinforcing plate 20. Inductance, capacitance and other components can be arranged on each matching branch 42, which are arranged according to actual application requirements such as antenna frequency band to be adjusted and effect to be achieved.

[0055] In this embodiment, different matching branches can be switched by the switching switch 41, and the equivalent electrical length of the metal reinforcing plate 20 is different when connecting different matching branches, so that the equivalent electrical length of the metal reinforcing plate 20 can be adjusted through the switch matching circuit 40, and the directional diagram adjustment or bandwidth adjustment of the nearby frame antenna can be realized.

[0056] Optionally, the second radiator 12 is a middle and high band (MHB) antenna, the at least one switch matching circuit 40 includes a first switch matching circuit, a first position of the metal reinforcing plate 20 is electrically connected to the first switch matching circuit, and a distance between the first position and the second radiator 12 is greater than a distance between the first position and the first radiator 11.

[0057] The first switch matching circuit includes a plurality of states, and the directional diagram of the second radiator 12 in the target working frequency band is different when the first switch matching circuit is in different states. The plurality of states include a state in which the switching switch SW1 of the first switch matching circuit is turned on to different matching branches of the plurality of matching branches of the first switch matching circuit, and a state in which the switching switch SW1 of the first switch matching circuit is not turned on to any matching branch of the first switch matching circuit.

[0058] In one specific application scenario, the second radiator 12, i.e. ANT2, is designed as an MHB antenna, and the working frequency range can be 1.71GHz-2.69GHz, 3.3GHz-4.2GHz. By connecting the first switch matching circuit to the ground at one end of the metal reinforcing plate 20 close to the second radiator 12, the directional diagram adjustment of the target frequency band of the ANT2 antenna can be realized, for example, the directional diagram of the WiFi 2.4G antenna is adjusted, and the peak efficiency of the ANT2 antenna can also be improved. The metal reinforcing plate 20 can be equivalent to a monopole antenna form.

[0059] Exemplarily, as shown in Fig. 3 The switching switch SW1 can switch the connection state of the four matching branches of "1", "2", "3" and "4". Figs. 4a-4c The antenna directional diagram of the second radiator 12 when working in the WiFi 2.4G frequency band in different switching states of the switching switch SW1 is shown. By switching the matching state through the switching switch SW1, the adjustment of the antenna directional diagram can be realized, so that the antenna can meet the optimal directional diagram in different scenarios and improve the user experience.

[0060] For example, in the default state, the switching switch SW1 is connected to the RF1 end, i.e. the matching branch 1 is turned on;

[0061] When the user plays games horizontally with the electronic device, the electronic device determines whether the frame button is upward or downward by the gyroscope:

[0062] If the button is upward, the switching switch SW1 is in the closed state (ALLOFF), i.e. no matching branch is turned on, so that the maximum radiation direction of ANT2 can be on the side of the button;

[0063] If the button is downward, the switching switch SW1 is connected to the RF2 end, i.e. the matching branch 2 is turned on, so that the maximum radiation direction is on the opposite side of the button, so as to ensure the communication quality of the user in this scenario.

[0064] Fig. 5 The efficiency comparison of the ANT2 antenna relative to the metal reinforcing plate 20 when the switching switch SW1 is connected to the RF3 end (i.e. the matching branch 3 is turned on) or the RF4 end (i.e. the matching branch 4 is turned on) and the switch matching circuit (i.e. SW1 and SW2 are in the closed state) is not connected is shown. As can be seen from the figure, in the case of SW1 being connected to RF3 or RF4, the peak efficiency of the ANT2 antenna in the WiFi 2.4G frequency band is improved.

[0065] The prior art generally cannot make detailed directional diagram adjustment, and traditional multi-antenna schemes have great limitations, such as a two-antenna scheme, which can only switch between two directional diagram states and cannot achieve more directional diagram switching of different directions. Through the implementation, the problem can be solved, multi-directional diagram switching is realized, the communication quality requirements of users in different application scenarios are met, and the antenna efficiency can be improved.

[0066] Optionally, the first radiator 11 is a low-band (LB) antenna, the at least one switch matching circuit 40 includes a second switch matching circuit, a second position of the metal reinforcing plate 20 is electrically connected with the second switch matching circuit, and a distance from the second position to the first radiator 11 is greater than a distance from the second position to the second radiator 12.

[0067] The second switch matching circuit includes a plurality of states, and the bandwidth of the second radiator 12 in the target working frequency band is different when the second switch matching circuit is in different states. The plurality of states include a state in which the switching switch SW2 of the second switch matching circuit is turned on to different matching branches of the plurality of matching branches of the second switch matching circuit.

[0068] In another specific application scenario, the first radiator 11, i.e., ANT1, is designed as an LB antenna, and the working frequency range can be 700 MHz-960 MHz. The second radiator 12, i.e., ANT2, is designed as an MHB antenna. By connecting the second switch matching circuit to ground at one end of the metal reinforcing plate 20 close to the first radiator 11, the peak efficiency of the MHB antenna can be improved or the bandwidth can be widened.

[0069] Exemplarily, as shown in FIG. 6, the switching switch SW2 can switch the connection states of the “1”, “2”, “3”, and “4” matching branches. Fig. 3 As shown in FIG. 6, the switching switch SW2 can switch the connection states of the “1”, “2”, “3”, and “4” matching branches. Fig. 6 As shown in FIG. 6, the switching switch SW2 can switch the connection states of the “1”, “2”, “3”, and “4” matching branches.

[0070] In specific applications, the bandwidth of the ANT2 antenna can be switched by SW2 according to the needs of different use scenarios. Exemplarily, in the following specific scenarios, the ANT2 antenna can be switched to a wide bandwidth state:

[0071] The wide bandwidth state is used in the default state. For example, it is impossible to distinguish whether a user uses an electronic device with a protective shell or not. In the case of using a protective shell, the efficiency bandwidth of the antenna is low due to the loading of the medium. Using a wide band can reduce the performance decline due to frequency offset and ensure the user's daily experience.

[0072] In the state of high-speed communication, the wide bandwidth state is also adopted to increase the communication capacity.

[0073] In the high-speed rail, mountainous area, mining area and other harsh conditions, due to the weak signal, the high antenna efficiency state needs to be used to ensure the communication quality in this situation and ensure the user experience.

[0074] In this embodiment, the bandwidth of the medium-high frequency antenna can be widened by the second switch matching circuit connected on the metal reinforcing plate 20, and the communication quality experience in some use scenarios can be improved.

[0075] It should be noted that the application scenario can be used in combination with the previous application scenario, that is, the first radiator 11 is an LB antenna, the second radiator 12 is an MHB antenna, the first switch matching circuit is connected on the side of the metal reinforcing plate 20 close to the first radiator 11, and the second switch matching circuit is connected on the side of the metal reinforcing plate 20 close to the second radiator 12, to realize the switching of the directivity pattern of the medium-high frequency antenna and the optimization of the antenna efficiency bandwidth.

[0076] It should be further noted that since the ANT1 antenna is an LB antenna, the switch matching circuit on the metal reinforcing plate 20 has little effect on the low frequency antenna, and therefore the above embodiment mainly discusses the effect of the metal reinforcing plate 20 on the medium-high frequency ANT2 antenna in different states through the switch matching circuit.

[0077] Optionally, the position where the metal reinforcing plate 20 connects the switch matching circuit 40 is provided with a feeding piece 21, and the metal reinforcing plate 20 is connected with the switch matching circuit 40 through the feeding piece 21.

[0078] In some embodiments, the feeding piece 21 can be added at the corresponding position of the metal reinforcing plate 20 where the switch matching circuit 40 is needed, so as to realize the electrical connection with the switch matching circuit 40 through the feeding piece 21, that is, one end of the switch matching circuit 40 is connected with the feeding piece 21, and the other end is grounded. The feeding piece 21 can be a spring, or a conductive foam, a screw or other electrical connecting piece.

[0079] Exemplarily, as shown in Fig. 3 , the feeding pieces 21 such as springs are added on both sides of the metal reinforcing plate 20, and the switch matching circuit 40 is connected back to the ground on the feeding pieces 21.

[0080] The above embodiment mainly reuses the metal reinforcing plate 20 which increases the structural strength, and realizes the change of the antenna directivity pattern, efficiency and bandwidth by adjusting the equivalent length and ground return path of the metal reinforcing plate 20. This implementation scheme can be applied to all positions where the plastic is easy to crack at the breakpoint of the antenna.

[0081] Optionally, as shown in Figs. 7a-7cAs shown, the first end of the metal reinforcing plate 20 opposite the first radiator 11 and / or the second end opposite the second radiator 12 is grounded.

[0082] In some embodiments, as shown in FIG. 2, the metal reinforcing plate 20 is directly connected to the ground at one end. Figs. 7a-7c As shown in FIG. 2, the metal reinforcing plate 20 can also be directly connected to the ground at one end to achieve the effect of adjusting the antenna pattern, efficiency or bandwidth. Fig. 7a As shown in FIG. 2, the metal reinforcing plate 20 can also be directly connected to the ground at one end to achieve the effect of adjusting the antenna pattern, efficiency or bandwidth. Fig. 7b As shown in FIG. 2, the metal reinforcing plate 20 can also be directly connected to the ground at one end to achieve the effect of adjusting the antenna pattern, efficiency or bandwidth. Fig. 7c Fig. 7a As shown in FIG. 2, the metal reinforcing plate 20 can also be directly connected to the ground at one end to achieve the effect of adjusting the antenna pattern, efficiency or bandwidth.

[0083] In this way, the switch matching structure of the metal reinforcing plate 20 can be flexibly set to meet the needs of different use scenarios.

[0084] In summary, the present application uses the metal block added to solve the cracking of the aluminum-plastic combination position to improve the antenna efficiency and control the antenna pattern. The main improvements are as follows: the problem of soft extrusion cracking of the aluminum-plastic combination position at the breakpoint of the metal middle frame is solved, and the antenna efficiency is improved; the passive antenna on the middle frame does not need the input of radio frequency communication signals, and has little effect on the original radio frequency design; the state of the antenna can be controlled by a switch on the mainboard to achieve multiple pattern switching.

[0085] The above-mentioned embodiments of the present application have the following beneficial effects: the problem of aluminum-plastic combination position cracking at the breakpoint of the metal middle frame is solved; the single antenna pattern is adjustable without adjusting the pattern by switching the radio frequency signal; the scheme of improving the antenna peak efficiency or wide antenna bandwidth can be flexibly adopted according to the needs of the use scenario.

[0086] According to the electronic device of the embodiment of the present application, the electronic device comprises a frame and a metal reinforcing plate, the frame comprises a first radiator and a second radiator, and the first radiator and the second radiator have a gap therebetween; the metal reinforcing plate is arranged opposite to a first inner wall of the frame, and a gap is formed between the metal reinforcing plate and the first inner wall of the frame, and the first inner wall comprises an inner wall of the first radiator and an inner wall of the second radiator; in the thickness direction of the electronic device, the size of at least one side region of the metal reinforcing plate is smaller than the size of a middle portion of the metal reinforcing plate, and the middle portion of the metal reinforcing plate is opposite to the gap. In this way, by improving the structure of the metal reinforcing plate of the electronic device, at least one side region is partially removed in the thickness direction of the electronic device, and the thickness of the at least one side region is smaller than the thickness of the middle portion, so that the opposite area between the metal reinforcing plate and the frame can be reduced, the coupling capacitance between the metal reinforcing plate and the antenna radiator on the frame can be reduced, and compared with the prior art, the influence of the metal reinforcing plate on the radiation efficiency of the antenna radiator near the metal reinforcing plate can be reduced, and the antenna performance of the electronic device can be improved. In addition, the thickness of the middle portion of the metal reinforcing plate opposite to the gap is large, and therefore the effect of enhancing the structural strength of the frame at the gap can be ensured.

[0087] Other configurations of the electronic device according to the embodiment of the present application, such as a mainboard and a processor, and operations are known to those skilled in the art, and will not be described in detail here.

[0088] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0089] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, comprising: The application relates to a frame and a metal reinforcing plate, the frame comprising a first radiator and a second radiator, and a gap being formed between the first radiator and the second radiator; the metal reinforcing plate is arranged opposite to a first inner wall of the frame, and a medium is filled between the metal reinforcing plate and the first inner wall of the frame, the first inner wall comprising an inner wall of the first radiator and an inner wall of the second radiator; at least one side region of the metal reinforcing plate is smaller than a middle part of the metal reinforcing plate in a thickness direction of the electronic device, and the middle part of the metal reinforcing plate is opposite to the gap. The metal reinforcing plate is in a convex structure, and the middle part of the metal reinforcing plate is convex in the thickness direction of the electronic device. The distance between the metal reinforcing plate and the first inner wall is greater than 1 mm. The length of the metal reinforcing plate is less than 9.5 mm and greater than or equal to 8 mm.

2. The electronic device of claim 1, wherein, The length of the middle part of the metal reinforcing plate is between 2 mm and 4 mm, and / or the thickness of the middle part of the metal reinforcing plate is less than 3 mm.

3. The electronic device of claim 1 or 2, wherein, The metal reinforcing plate is grounded through at least one switch matching circuit, the switch matching circuit comprising a switching switch and a plurality of matching branches, the switching switch comprising a fixed terminal and a plurality of movable terminals, the plurality of movable terminals corresponding to the plurality of matching branches one by one, and the matching branches being electrically connected to the corresponding movable terminals, and the fixed terminal being grounded.

4. The electronic device of claim 1 or 2, wherein, The metal reinforcing plate has different equivalent electric lengths when the switching switch is turned on to different matching branches.

5. The electronic device of claim 2, wherein, The second radiator is a medium-high-frequency (MHB) antenna, the at least one switch matching circuit comprises a first switch matching circuit, a first position of the metal reinforcing plate is electrically connected to the first switch matching circuit, and the distance between the first position and the second radiator is greater than the distance between the first position and the first radiator.

6. The electronic device of claim 1, wherein, The first switch matching circuit comprises a plurality of states, the plurality of states comprising a state in which the switching switch of the first switch matching circuit is turned on to different matching branches of the plurality of matching branches of the first switch matching circuit and a state in which the switching switch of the first switch matching circuit is not turned on to any matching branch of the first switch matching circuit. The first radiator is a low-frequency (LB) antenna, the at least one switch matching circuit comprises a second switch matching circuit, a second position of the metal reinforcing plate is electrically connected to the second switch matching circuit, and the distance between the second position and the first radiator is greater than the distance between the second position and the second radiator.

7. The electronic device of claim 6, wherein, The second switch matching circuit comprises a plurality of states, the plurality of states comprising a state in which the switching switch of the second switch matching circuit is turned on to different matching branches of the plurality of matching branches of the second switch matching circuit. The position of the metal reinforcing plate connected to the switch matching circuit is provided with a feeding part, and the metal reinforcing plate is connected to the switch matching circuit through the feeding part.

8. The electronic device of claim 6 or 7, wherein, ​ ​ 9. The electronic device of claim 6 or 7, wherein, ​ 10. The electronic device of claim 6 or 7, wherein, The first end of the metal reinforcing plate is grounded, and the first end is an end opposite to the first radiator. The second end of the metal reinforcing plate is grounded, and the second end is an end opposite to the second radiator.

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