Electronic device
By setting a first gap on the metal shell of the electronic device, the problem of user blocking signals is solved, and the communication quality and the radiation effect of the antenna are improved.
Patent Information
- Application Number
- CN202510492609.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2025-07-18
AI Technical Summary
The communication quality of electronic devices is affected by the user's body occlusion, especially when the black edge area of the display module is close to the user.
A first slit is provided on the metal housing of the electronic device, including a first extension slit and a second extension slit, located at the junction area of the back cover and the side frame, respectively, forming a first cavity antenna through which the signal radiates to reduce shading.
It improves the communication quality of electronic devices, especially in specific attitudes, and enhances the spatial coverage performance of the antenna.
Smart Images
Figure CN120341552A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art
[0002] Electronic devices generally use cavity antennas as resonant cavities. The signals in the resonant cavity will be radiated through the black border area on the periphery of the display module. When the electronic device is in use, the black border area of the display module faces the user. As a result, the user's body will block the signal, which will adversely affect the communication quality. Summary of the invention
[0003] An embodiment of the present application provides an electronic device to solve the problem of how to improve the communication quality of the electronic device.
[0004] In order to solve the above technical problems, this application is implemented as follows: The electronic device provided in the embodiment of the present application includes: a metal shell, a display module, a circuit board and a first grounding member; the metal shell includes a back cover portion and a frame portion connected to each other, the display module, the circuit board and the back cover portion are arranged in sequence at intervals, the first grounding member is respectively connected to the back cover portion and the circuit board, the frame portion includes a first side frame and a second side frame connected to each other, the back cover portion, the circuit board, the first side frame, the second side frame and the first grounding member form a first cavity antenna; the metal shell is provided with a first gap, the first gap includes a first extension gap and a second extension gap connected to each other, the first extension gap is opened at the junction area of the back cover portion and the first side frame, and the second extension gap is opened at the junction area of the back cover portion and the second side frame.
[0005] Optionally, the first extension seam passes through the back cover portion along a thickness direction of the back cover portion; the first extension seam passes through the first side frame along a thickness direction of the first side frame.
[0006] Optionally, the second extension seam passes through the back cover portion along the thickness direction of the back cover portion; the second extension seam passes through the second side frame along the thickness direction of the second side frame.
[0007] Optionally, the first gap further includes a first expansion seam; the first expansion seam extends from a first side wall of the first extension seam in a direction away from the first side frame, wherein the first side wall is a side wall of the first extension seam facing the first side frame.
[0008] Optionally, the first extended slit includes a third sidewall, a fourth sidewall, and a fifth sidewall. The third sidewall is the sidewall of the first extended slit away from the first side frame, the fourth sidewall is the sidewall of the first extended slit away from the second side frame, and the fifth sidewall is spaced apart from the fourth sidewall; wherein, the fifth sidewall is parallel to the fourth sidewall, or the distance between the end of the fifth sidewall away from the third sidewall and the fourth sidewall is greater than the distance between the end of the fifth sidewall close to the third sidewall and the fourth sidewall.
[0009] Optionally, the first slit further includes a second extended slit; the second extended slit extends from the second sidewall of the second extended slit in a direction away from the second side frame, wherein the second sidewall is the sidewall of the second extended slit facing the second side frame.
[0010] Optionally, the second extended slit includes a sixth sidewall, a seventh sidewall, and an eighth sidewall. The sixth sidewall is the sidewall of the second extended slit away from the second side frame, the seventh sidewall is the sidewall of the second extended slit away from the first side frame, and the eighth sidewall is spaced apart from the seventh sidewall; wherein, the eighth sidewall is parallel to the seventh sidewall, or the distance between the end of the eighth sidewall away from the sixth sidewall and the seventh sidewall is greater than the distance between the end of the eighth sidewall close to the sixth sidewall and the seventh sidewall.
[0011] Optionally, the length of the first extended slit is 1 / 4 wavelength, and the length of the second extended slit is 1 / 4 wavelength, wherein the wavelength is the wavelength of the signal radiated through the first slit.
[0012] Optionally, the side of the circuit board facing the first side frame is spaced apart from the first side frame; the side of the circuit board facing the second side frame is spaced apart from the second side frame; the electronic device further includes a second grounding member; the second grounding member is respectively connected to the display module and the circuit board, and the back cover portion, the display module, the first side frame, the second side frame, and the second grounding member enclose a second cavity antenna, and the second cavity antenna is in communication with the first cavity antenna.
[0013] Optionally, the second grounding member includes a camera bracket and a first sub-electrical connecting member. The camera bracket is spaced apart from the first side frame, and the circuit board is connected to the display module through the camera bracket and the first sub-electrical connecting member.
[0014] The above at least one technical solution adopted in the embodiments of the present application can achieve the following beneficial effects: In an embodiment of the present application, the signal in the first cavity antenna can be radiated into the environment outside the electronic device through the first slot. Since the first extension slot of the first slot is opened in the junction area between the back cover part and the first side frame, and the second extension slot of the first slot is opened in the junction area between the back cover part and the second side frame, in this way, the signals radiated through the first extension slot and the second extension slot are not easily blocked by the human body. Therefore, the communication quality of the electronic device can be improved.
[0015] In addition, when the electronic device is placed in the posture with the first side frame facing forward, the signal in the first cavity antenna will radiate upward through the first extension slot and radiate laterally through the second extension slot respectively. In this way, the signal is less likely to be blocked, and thus the communication quality of the electronic device can be better improved.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0018] Figure 1 A partial cross-sectional view of an electronic device provided by an embodiment of the present application; Figure 2 For Figure 1 A partial schematic view of the side where the back cover part of the electronic device shown in Figure 3 For Figure 1 A cross-sectional view of the electronic device shown in Figure 4 For Figure 1 A partial schematic view of the side where the display module of the electronic device shown in Figure 5 For Figure 1 A cross-sectional view of the electronic device shown in Figure 6 For Figure 1 A schematic diagram of the current path of the first slot of the electronic device shown in Figure 7 A schematic diagram of the current path of the first slot of another electronic device provided by an embodiment of the present application; Figure 8Schematic diagram of the current path of the first gap of another electronic device provided by an embodiment of the present application; Figure 9 Radiation pattern diagrams of two different electronic devices provided by an embodiment of the present application.
[0019] Explanation of reference numerals: 100 - Electronic device; 110 - Metal housing; 111 - Back cover part; 112 - Frame part; 1121 - First side frame; 1122 - Second side frame; 120 - Display module; 130 - Circuit board; 140 - First grounding component; 151 - First cavity antenna; 152 - Second cavity antenna; 160 - First gap; 161 - First extension gap; 1611 - First side wall; 1612 - Ninth side wall; 162 - Second extension gap; 1621 - Second side wall; 1622 - Tenth side wall; 163 - First expansion gap; 1631 - Third side wall; 1632 - Fourth side wall; 1633 - Fifth side wall; 164 - Second expansion gap; 1641 - Sixth side wall; 1642 - Seventh side wall; 1463 - Eighth side wall; 171 - Second gap; 172 - Third gap; 180 - Second grounding component; 181 - Camera bracket; 182 - First sub - electrical connector; 183 - Second sub - electrical connector; 184 - Third sub - electrical connector; 190 - Antenna feed; L1 - First current path; L2 - Second current path. Detailed implementation manners
[0020] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.
[0021] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0022] In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.
[0023] Furthermore, it is required that the present application be understood not only by the actual terms used but also by the meanings connoted by each term.
[0024] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.
[0025] The present application embodiment provides an electronic device. Figures 1 to 8 The electronic device 100 provided in the embodiment of the present application includes: a metal housing 110, a display module 120, a circuit board 130 and a first grounding member 140. For example, the electronic device 100 may be a tablet computer or a mobile phone.
[0026] The metal housing 110 includes a back cover 111 and a frame 112 connected to each other. The display module 120, the circuit board 130 and the back cover 111 are arranged in sequence. Exemplarily, the display module 120, the circuit board 130 and the back cover 111 are arranged in sequence along the thickness direction of the electronic device 100.
[0027] The first grounding member 140 is connected to the back cover 111 and the circuit board 130 respectively. The frame portion 112 includes a first side frame 1121 and a second side frame 1122 connected to each other. Exemplarily, when the electronic device 100 is a tablet computer, the first side frame 1121 is an upper side frame, and the second side frame 1122 is a left side frame. The back cover 111, the circuit board 130, the first side frame 1121, the second side frame 1122 and the first grounding member 140 form a first cavity antenna 151.
[0028] The metal housing 110 is provided with a first gap 160. It should be noted that the first gap 160 is formed by performing subtractive processing on the metal housing 110, thereby removing the material of a part of the metal housing 110. It is understandable that in order to improve the waterproof and dustproof performance of the electronic device 100, the first gap 160 can be blocked with a non-electromagnetic shielding material. For example, the first gap 160 can be blocked with a plastic blocking piece.
[0029] Furthermore, the first slit 160 includes a first extending slit 161 and a second extending slit 162 which are connected. The first extending slit 161 is formed at the junction area between the back cover 111 and the first side frame 1121 , and the second extending slit 162 is formed at the junction area between the back cover 111 and the second side frame 1122 .
[0030] In this way, in the embodiments of the present application, the signal in the first cavity antenna 151 can be radiated into the environment outside the electronic device 100 through the first slit 160. Since the first extension slit 161 of the first slit 160 is opened in the junction area between the back cover portion 111 and the first side frame 1121, and the second extension slit 162 of the first slit 160 is opened in the junction area between the back cover portion 111 and the second side frame 1122, in this way, the signals radiated through the first extension slit 161 and the second extension slit 162 are not easily blocked by the human body, and thus, the communication quality of the electronic device 100 can be improved.
[0031] In addition, when the electronic device 100 is placed in the posture facing the first side frame 1121, the signal in the first cavity antenna 151 will respectively pass through the first extension slit 161 and radiate upward, and pass through the second extension slit 162 and radiate sideward. In this way, the signal is less likely to be blocked, and thus the communication quality of the electronic device 100 can be better improved.
[0032] Exemplarily, taking Figure 1 the shown orientation as an example, the signal can be radiated downward from the first slit 160, and the signal can be radiated to the right from the first slit 160. Taking Figure 2 the shown orientation as an example, the signal can be radiated out of the paper surface direction from the first slit 160, the signal can be radiated upward from the first extension slit 161 of the first slit 160, and the signal can be radiated to the left from the second extension slit 162 of the first slit 160. In this way, the effect of improving the spatial coverage performance of the antenna signal can be achieved.
[0033] In some embodiments, the first extension slit 161 penetrates the back cover portion 111 along the thickness direction of the back cover portion 111. The first extension slit 161 penetrates the first side frame 1121 along the thickness direction of the first side frame 1121. In this way, part of the signal in the first cavity antenna 151 will radiate out in a direction perpendicular to the back cover portion 111 along the area of the first extension slit 161 close to the back cover portion 111; and part of the signal in the first cavity antenna 151 will radiate out in a direction perpendicular to the first side frame 1121 along the area of the first extension slit 161 close to the first side frame 1121. In this way, the radiation direction of the signal will be increased, and thus the communication quality of the electronic device 100 can be improved.
[0034] In some embodiments, the second extension slit 162 penetrates the back cover portion 111 along the thickness direction of the back cover portion 111. The second extension slit 162 penetrates the second side frame 1122 along the thickness direction of the second side frame 1122. In this way, part of the signals in the first cavity antenna 151 will radiate out in a direction perpendicular to the back cover portion 111 along the area of the second extension slit 162 close to the back cover portion 111; and part of the signals in the first cavity antenna 151 will radiate out in a direction perpendicular to the second side frame 1122 along the area of the second extension slit 162 close to the second side frame 1122. In this way, the radiation direction of the signals will be increased, thereby improving the communication quality of the electronic device 100.
[0035] Reference Figure 7 Or Figure 8 , in some embodiments, the first slit 160 further includes a first extension slit 163. The first extension slit 163 extends from the first side wall 1611 of the first extension slit 161 in a direction away from the first side frame 1121. The first side wall 1611 is the side wall of the first extension slit 161 facing the first side frame 1121. In this way, the radiation effect of the signals can be improved by adding the first extension slit 163, so as to improve the communication quality of the electronic device 100.
[0036] In some embodiments, the first extension slit 163 includes a third side wall 1631, a fourth side wall 1632 and a fifth side wall 1633. The third side wall 1631 is the side wall of the first extension slit 163 away from the first side frame 1121. The fourth side wall 1632 is the side wall of the first extension slit 163 away from the second side frame 1122. The fifth side wall 1633 is distributed at intervals from the fourth side wall 1632.
[0037] In some embodiments, the first extension slit 163 includes a fourth side wall 1632 and a fifth side wall 1633. The fourth side wall 1632 is the side wall of the first extension slit 163 away from the second side frame 1122. The fifth side wall 1633 is opposite to the fourth side wall 1632.
[0038] Reference Figure 7 , the fifth side wall 1633 is parallel to the fourth side wall 1632. Or, reference Figure 8 , the distance between the end of the fifth side wall 1633 away from the third side wall 1631 and the fourth side wall 1632 is greater than the distance between the end of the fifth side wall 1633 close to the third side wall 1631 and the fourth side wall 1632.
[0039] It should be noted that the end of the fifth side wall 1633 "close to" the third side wall 1631 described here means the end of the fifth side wall 1633 that is closer to the third side wall 1631 relative to the end of the fifth side wall 1633 facing away from the third side wall 1631. When this description appears later, it should be understood in this way, and no further explanation will be given one by one.
[0040] Taking the Figure 8 shown orientation as an example, the upper left end of the fifth side wall 1633 is far from the third side wall 1631, the lower right end of the fifth side wall 1633 is close to the third side wall 1631, and the upper left end of the fifth side wall 1633 has a greater distance from the fourth side wall 1632 than the lower right end of the fifth side wall 1633.
[0041] Referring to Figure 7 or Figure 8 , in some embodiments, the first slit 160 further includes a second extension slit 164. The second extension slit 164 extends from the second side wall 1621 of the second extension slit 162 in a direction away from the second side frame 1122. Wherein, the second side wall 1621 is the side wall of the second extension slit 162 facing the second side frame 1122. In this way, the radiation effect of the signal can be further improved by adding the second extension slit 164, so as to improve the communication quality of the electronic device 100.
[0042] In some embodiments, the second extension slit 164 includes a sixth side wall 1641, a seventh side wall 1642, and an eighth side wall 1643. The sixth side wall 1641 is the side wall of the second extension slit 164 away from the second side frame 1122. The seventh side wall 1642 is the side wall of the second extension slit 164 away from the first side frame 1121. The eighth side wall 1643 is distributed at intervals with the seventh side wall 1642.
[0043] Referring to Figure 7 , the eighth side wall 1643 is parallel to the seventh side wall 1642. Or, referring to Figure 8 , the distance between the end of the eighth side wall 1643 away from the sixth side wall 1641 and the seventh side wall 1642 is greater than the distance between the end of the eighth side wall 1643 close to the sixth side wall 1641 and the seventh side wall 1642.
[0044] Taking the Figure 8 shown orientation as an example, the upper left end of the eighth side wall 1643 is far from the sixth side wall 1641, the lower right end of the eighth side wall 1643 is close to the sixth side wall 1641, and the upper left end of the eighth side wall 1643 has a greater distance from the seventh side wall 1642 than the lower right end of the eighth side wall 1643.
[0045] Referring to Figure 8 , in some embodiments, the end of the eighth side wall 1643 facing the second extension slit 162 intersects with the end of the fifth side wall 1633 facing the first extension slit 161.
[0046] Exemplarily, the fourth side wall 1632 of the first extension slit 163 away from the second side frame 1122 is flush with the ninth side wall 1612 of the first extension slit 161 away from the second side frame 1122. The seventh side wall 1642 of the second extension slit 164 away from the first side frame 1121 is flush with the tenth side wall 1622 of the second extension slit 162 away from the first side frame 1121.
[0047] It should be noted that when the L-shaped first slit 160 (the first slit 160 only includes the first extension slit 161 and the second extension slit 162) is provided in the back cover part 111 and the frame part 112 of the metal housing 110, the resonance excited at the slit forms a 1 / 4-wavelength slit antenna radiation pattern. When the first slit 160 only includes the first extension slit 161 and the second extension slit 162, the current path of the first slit 160 is as Figure 6 shown. The corresponding resonant frequency of the slit antenna is f1. Since the 1 / 4-wavelength slit antenna radiation pattern is strongly related to the slit length, the resonant bandwidth of the slit antenna introduced by the L-shaped first slit 160 may not meet the usage scenario of a broadband antenna.
[0048] Furthermore, after adding the first extension slit 163 and the second extension slit 164, the current path of the first slit 160 can be referred to Figure 7 or Figure 8 . Two different current paths are formed at the first slit 160. One of the current paths is denoted as the first current path L1, and the resonant frequency of the slit antenna formed by the first current path L1 is f2; the other current path is denoted as the second current path L2, and the frequency of the slit antenna formed by the second current path L2 is f3.
[0049] Furthermore, by appropriately adjusting the lengths of the first current path L1 and the second current path L2, the effects of adjusting the corresponding resonant frequencies f2 and f3 can be achieved. When the resonant frequencies f2 and f3 are close, broadband radiation can be formed. It can be seen that by adding the first extension slit 163 and the second extension slit 164, the frequency band of the radiation signal can be improved, and further the communication quality of the electronic device can be improved.
[0050] It should be noted that in some embodiments, when the length dimension of the first extension slit 163 along its own extension direction is large, and the end of the fourth side wall 1632 of the first extension slit 163 away from the first extension slit 161 is relatively close to the tenth side wall 1622 of the second extension slit 162, two different current paths can also be formed at the first slit 160. Therefore, in some embodiments, only the first extension slit 163 can be provided without providing the second extension slit 164. Similarly, only the second extension slit 164 can be provided without providing the first extension slit 163.
[0051] It should also be noted that since changing the length of the first current path L1 will cause the resonance frequency f2 to change, therefore, the length of the first current path L1 can be changed by adjusting the shape or inclination angle of the fifth side wall 1633 and the eighth side wall 1643, and then by adjusting the resonance frequency f2, the resonance frequency f2 and the resonance frequency f3 can be made close, thereby improving the communication quality of the electronic device.
[0052] In some embodiments, the fourth side wall 1632 is perpendicular to the first side frame 1121, and the seventh side wall 1642 is perpendicular to the second side frame 1122. Refer to Figure 7 In some embodiments, the first extension slot 163 is a first rectangular extension slot, and the second extension slot 164 is a second rectangular extension slot. Refer to Figure 8 In some embodiments, both the first extension slot 163 and the second extension slot 164 are extension slots similar to trapezoids.
[0053] In some embodiments, the length of the first extension slit 161 is 1 / 4 wavelength, and the length of the second extension slit 162 is 1 / 4 wavelength, where the wavelength is the wavelength of the signal radiated through the first slit 160.
[0054] It should be noted that the length of a complete short - circuit resonant antenna is usually 1 / 2 wavelength. For a 1 / 2 - wavelength antenna, the two ends are the strong points of the current, and the center position (1 / 4 - wavelength position) is the weak point of the current and the strong point of the electric field. Therefore, cutting off the resonant cavity at the 1 / 4 - wavelength position will not theoretically destroy the cavity mode and can still excite the required resonant energy, while also reducing the size of the antenna. Thus, by making the length of the first extension slit 161 be 1 / 4 wavelength and the length of the second extension slit 162 be 1 / 4 wavelength, compared with the method of making the lengths of both the first extension slit 161 and the second extension slit 162 be 1 / 2 wavelength, it can reduce the size of the extension slit, and further reduce the size of the corresponding first cavity antenna 151, improving the compactness of the electronic device.
[0055] Refer to Figure 3 In some embodiments, the first grounding member 140 is arranged in an L - shape. The part of the first grounding member 140 opposite to the first side frame 1121 is spaced from the first side frame 1121. The part of the first grounding member 140 opposite to the second side frame 1122 is spaced from the second side frame 1122. Combining Figure 1 In this way, an approximately rectangular area can be formed by the first grounding member 140, the first side frame 1121, and the second side frame 1122, and then the first cavity antenna 151 can be formed by enclosing the circuit board 130 and the back cover part 111.
[0056] Refer to Figure 1 andFigure 5 , in some embodiments, the side surface of the circuit board 130 facing the first side frame 1121 is spaced from the first side frame 1121. The side surface of the circuit board 130 facing the second side frame 1122 is spaced from the second side frame 1122. The side frame portion 112 is sleeved outside the display module 120. The electronic device 100 further includes a second grounding member 180. The second grounding member 180 is respectively connected to the display module 120 and the circuit board 130. The back cover portion 111, the display module 120, the first side frame 1121, the second side frame 1122, and the second grounding member 180 enclose a second cavity antenna 152, and the second cavity antenna 152 communicates with the first cavity antenna 151.
[0057] It should be noted that, in the embodiments of the present application, by setting the first grounding member 140, a short-circuit wall can be formed by the contact between the circuit board 130 and the back cover portion 111. Among them, the short-circuit wall formed by the first grounding member 140 is about 1 / 4 wavelength. Based on this, by exciting the antenna feed 190, a 1 / 4 cavity mode between the circuit board 130 and the back cover portion 111 can be excited, which is the basic resonance mode of the entire antenna.
[0058] Since the Z-direction height between the circuit board 130 and the back cover portion 111 is limited, this resonance mode is a high-Q oscillation resonance. Therefore, in order to make this resonance radiate better, a resonance with a higher Z-direction height needs to be excited (the higher the height, the lower the Q value of the resonance, which is more conducive to radiation). Thus, by setting the second grounding member 180 between the circuit board 130 and the display module 120, the second grounding member 180 forms a short-circuit wall. Furthermore, during the propagation process of the cavity mode between the circuit board 130 and the back cover portion 111, it will gradually transition to between the back cover portion 111 and the display module 120. The resonance cavity height between the back cover portion 111 and the display module 120 is higher than that between the circuit board 130 and the back cover portion 111, and the Q value is lower, which is more conducive to electric field radiation.
[0059] In some embodiments, the second grounding member 180 includes a camera bracket 181 and a first sub-electrical connection member 182. The camera bracket 181 is spaced from the first side frame 1121. The circuit board 130 is connected to the display module 120 through the camera bracket 181 and the first sub-electrical connection member 182. Exemplarily, the camera bracket 181 is a steel frame. In this way, by using the camera bracket 181 as a grounding member, the effect of reducing the material consumption of the electrical connection member can be achieved.
[0060] Furthermore, the second grounding member 180 further includes a second sub-electrical connecting member 183 and a third sub-electrical connecting member 184. The second sub-electrical connecting member 183 is disposed at an interval from the second side frame 1122. The combination formed by the camera bracket 181 and the first sub-electrical connecting member 182, and the third sub-electrical connecting member 184 are disposed at an interval from the first side frame 1121. In this way, the second grounding member 180 and the first side frame 1121 and the second side frame 1122 can enclose an approximately rectangular area, and further form a second cavity antenna 152 with the display module 120 and the back cover portion 111. In addition, the second cavity antenna 152 is communicated with the first cavity antenna 151, so that the signal in the first cavity antenna 151 can be transmitted to the second cavity antenna 152, and then resonate inside the second cavity antenna 152.
[0061] Exemplarily, the first grounding member 140 is a conductive foam or a metal spring piece. When the first grounding member 140 is a conductive foam, the conductive foam can be made into an L-shaped structure, so that one side of the L-shaped conductive foam faces the first side frame 1121, and the other side faces the second side frame 1122. When the first grounding member 140 is a metal spring piece, a plurality of metal spring pieces can be provided, and the plurality of metal spring pieces are distributed at intervals along the L shape. One column of metal spring pieces faces the first side frame 1121, and the other column of metal spring pieces faces the second side frame 1122. Of course, in other embodiments, the first grounding member 140 can also be made of other conductive materials, which will not be listed one by one here.
[0062] Similarly, in some embodiments, the first sub-electrical connecting member 182, the second sub-electrical connecting member 183, and the third sub-electrical connecting member 184 can also be conductive foams or metal spring pieces, which will not be elaborated here.
[0063] It should be noted that, in some embodiments, a first metal layer is provided on the side of the display module 120 facing the back cover portion 111. Exemplarily, the first metal layer is a copper foil. The circuit board 130 is provided with a second metal layer and a third metal layer distributed at intervals. Exemplarily, the second metal layer and the third metal layer are the first copper layer and the second copper layer provided on the circuit board substrate, respectively.
[0064] The second grounding member 180 is respectively connected to the first metal layer and the second metal layer, and the first grounding member 140 is respectively connected to the third metal layer and the back cover portion 111. In addition, the second metal layer and the third metal layer are electrically connected. Of course, in some embodiments, the second metal layer and the third metal layer can also be the same metal layer.
[0065] Reference Figure 1 and Figure 4, in some embodiments, a second gap 171 is provided between the display module 120 and the frame portion 112. In this way, the signals in the first cavity antenna 151 and the second cavity antenna 152 can be radiated out of the electronic device 100 along a direction perpendicular to the display module 120 through the second gap 171. In this way, the radiation direction of the signal can be further improved to improve the communication quality of the electronic device 100.
[0066] In some embodiments, the back cover portion 111 is provided with a third gap 172. The third gap 172 communicates with the first cavity antenna 151 and the second cavity antenna 152 respectively. In this way, the signals in the first cavity antenna 151 and the second cavity antenna 152 can be radiated out of the electronic device 100 along a direction perpendicular to the back cover portion 111 through the third gap 172. In this way, the radiation direction of the signal can be further improved to improve the communication quality of the electronic device 100.
[0067] It should be noted that the inventors of the present application have respectively performed antenna radiation analysis on the electronic device with only the second gap 171 and the third gap 172 opened, and the electronic device with the first gap 160, the second gap 171 and the third gap 172 opened. The radiation pattern diagrams of the two electronic devices are shown in Figure 9 . Among them, Figure 9 the curve 1 in is the curve of the electronic device with the first gap 160, the second gap 171 and the third gap 172 opened in the radiation pattern diagram, and the curve 2 is the curve of the electronic device with only the second gap 171 and the third gap 172 opened in the radiation pattern diagram. 0 degrees is perpendicular to the display module 120 and facing upward, 180 degrees is perpendicular to the back cover portion 111 and facing downward, and 90 degrees on the left is the first side frame 1121 facing left.
[0068] As can be seen from Figure 9 , in the direction perpendicular to the display module 120 and facing upward, the radiation gain difference between the two electronic devices is not significant. In the direction of the first side frame 1121 facing left, for the electronic device with three gaps opened, compared with the electronic device with two gaps opened, the radiation gain has increased by 3.4 decibels (dB). For the electronic device with three gaps opened compared with the electronic device with two gaps opened, the radiation gain in other directions has hardly deteriorated. Therefore, the electronic device with the first gap 160, the second gap 171 and the third gap 172 opened has the advantage of better communication quality compared with the electronic device with only the second gap 171 and the third gap 172 opened.
[0069] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or apparatus.
[0070] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the embodiments of the present application, and the scope of the embodiments of the present application is defined by the appended claims and their equivalents.
Claims
1. An electronic device, characterized in that, include: A metal housing (110), a display module (120), a circuit board (130), and a first grounding member (140); The metal housing (110) comprises a back cover portion (111) and a frame portion (112) connected to each other; the display module (120), the circuit board (130) and the back cover portion (111) are arranged in sequence and spaced apart; the first grounding member (140) is respectively connected to the back cover portion (111) and the circuit board (130); the frame portion (112) comprises a first side frame (1121) and a second side frame (1122) connected to each other; the back cover portion (111), the circuit board (130), the first side frame (1121), the second side frame (1122) and the first grounding member (140) form a first cavity antenna (151); The metal shell (110) is provided with a first slit (160), the first slit (160) comprising a first extension slit (161) and a second extension slit (162) which are connected to each other, the first extension slit (161) being opened at the junction area between the back cover portion (111) and the first side frame (1121), and the second extension slit (162) being opened at the junction area between the back cover portion (111) and the second side frame (1122).
2. The electronic device according to claim 1, wherein The first extension seam (161) passes through the back cover portion (111) along the thickness direction of the back cover portion (111); and the first extension seam (161) passes through the first side frame (1121) along the thickness direction of the first side frame (1121).
3. The electronic device according to claim 1, wherein The second extension seam (162) passes through the back cover portion (111) along the thickness direction of the back cover portion (111); and the second extension seam (162) passes through the second side frame (1122) along the thickness direction of the second side frame (1122).
4. The electronic device according to claim 1, wherein The first slit (160) further comprises a first expansion slit (163); the first expansion slit (163) extends from a first side wall (1611) of the first extension slit (161) in a direction away from the first side frame (1121), wherein the first side wall (1611) is a side wall of the first extension slit (161) facing the first side frame (1121).
5. The electronic device according to claim 4, characterized in that, The first expansion seam (163) comprises a third side wall (1631), a fourth side wall (1632) and a fifth side wall (1633); the third side wall (1631) is a side wall of the first expansion seam (163) away from the first side frame (1121); the fourth side wall (1632) is a side wall of the first expansion seam (163) away from the second side frame (1122); and the fifth side wall (1633) is spaced apart from the fourth side wall (1632); Wherein, the fifth side wall (1633) is parallel to the fourth side wall (1632), or the distance between the end of the fifth side wall (1633) far from the third side wall (1631) and the fourth side wall (1632) is greater than the distance between the end of the fifth side wall (1633) close to the third side wall (1631) and the fourth side wall (1632).
6. The electronic device according to claim 4, wherein The first slit (160) further includes a second extension slit (164); the second extension slit (164) extends from the second side wall (1621) of the second extension slit (162) in a direction away from the second side frame (1122), wherein the second side wall (1621) is the side wall of the second extension slit (162) facing the second side frame (1122).
7. The electronic device according to claim 6, wherein The second extension slit (164) includes a sixth side wall (1641), a seventh side wall (1642) and an eighth side wall (1643), the sixth side wall (1641) is the side wall of the second extension slit (164) away from the second side frame (1122), the seventh side wall (1642) is the side wall of the second extension slit (164) away from the first side frame (1121), and the eighth side wall (1643) is distributed at intervals with the seventh side wall (1642); Wherein, the eighth side wall (1643) is parallel to the seventh side wall (1642), or the distance between the end of the eighth side wall (1643) far from the sixth side wall (1641) and the seventh side wall (1642) is greater than the distance between the end of the eighth side wall (1643) close to the sixth side wall (1641) and the seventh side wall (1642).
8. The electronic device according to claim 1, wherein The length of the first extension slit (161) is 1 / 4 wavelength, and the length of the second extension slit (162) is 1 / 4 wavelength, wherein the wavelength is the wavelength of the signal radiated through the first slit (160).
9. The electronic device according to claim 1, wherein The side surface of the circuit board (130) facing the first side frame (1121) is arranged at intervals with the first side frame (1121); the side surface of the circuit board (130) facing the second side frame (1122) is arranged at intervals with the second side frame (1122); The electronic device further includes a second grounding member (180); the second grounding member (180) is respectively connected to the display module (120) and the circuit board (130), and the back cover part (111), the display module (120), the first side frame (1121), the second side frame (1122) and the second grounding member (180) enclose a second cavity antenna (152), and the second cavity antenna (152) is communicated with the first cavity antenna (151).
10. The electronic device according to claim 9, characterized in that, The second grounding member (180) includes a camera bracket (181) and a first sub-electrical connecting member (182). The camera bracket (181) is spaced from the first side frame (1121). The circuit board (130) is connected to the display module (120) via the camera bracket (181) and the first sub-electrical connecting member (182).