CN111416197B

CN111416197B - Foldable housing assembly and foldable electronic device

Info

Publication number: CN111416197B
Application number: CN202010242378.8A
Authority: CN
Inventors: 李雪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-08-17
Anticipated expiration: 2040-03-31
Also published as: CN111416197A

Abstract

The present application relates to a foldable housing assembly and a foldable electronic device, the foldable housing assembly comprising: the first shell is provided with a radio frequency circuit and a first antenna, and the first antenna is connected with the radio frequency circuit through a first radio frequency wire; the second shell is rotatably connected with the first shell and provided with a second antenna, and the second antenna is connected with the radio frequency circuit through a second radio frequency wiring; the conductive coupling mechanism includes: the first coupling part is arranged on the first shell and is electrically connected with the radio frequency circuit through the third radio frequency wire; the second coupling part is arranged on the second shell and is coupled with the second antenna; when the first shell and the second shell are oppositely overlapped, the first coupling part is in contact conduction with the second coupling part, and the radio frequency circuit is used for selectively conducting a radio frequency link where the third radio frequency wiring is located so as to transmit radio frequency signals received and transmitted by the second antenna, so that the transmitting power of the second antenna can be reduced, and the strength of the radio frequency signals received by the second antenna is improved.

Description

Foldable housing assembly and foldable electronic device

Technical Field

The present application relates to the field of antenna technology, and in particular, to a foldable housing assembly and a foldable electronic device.

Background

With the development of wireless communication technology, users have increasingly high requirements on the portability and appearance of electronic devices. With the trend of pursuing extremely large screens, foldable electronic devices are increasingly favored.

With the arrival of 5G and the development of 6G, the number of antennas of foldable electronic devices is gradually increasing, and how to reasonably arrange radio frequency wires to reduce radio frequency loss becomes a difficult problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a foldable shell assembly and a foldable electronic device, which can reduce the transmitting power of a second antenna and improve the strength of a radio frequency signal received by the second antenna.

A foldable housing assembly, comprising:

the antenna comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a radio frequency circuit and a first antenna, and the first antenna is connected with the radio frequency circuit through a first radio frequency wiring;

the second shell is rotatably connected to the first shell, and the first shell and the second shell can rotate relatively to be overlapped relatively; the second shell is provided with a second antenna, and the second antenna is connected with the radio frequency circuit through a second radio frequency wire;

an electrically conductive coupling mechanism comprising:

the first coupling part is arranged on the first shell and is electrically connected with the radio frequency circuit through a third radio frequency wire;

the second coupling part is arranged on the second shell and is coupled with the second antenna;

when the first shell and the second shell are in a relatively overlapped state, the first coupling part is in contact conduction with the second coupling part, the radio frequency circuit is used for selectively conducting a radio frequency link where the third radio frequency wiring is located so as to transmit radio frequency signals received and transmitted by the second antenna, and the length of the second radio frequency wiring is greater than the lengths of the first radio frequency wiring and the third radio frequency wiring.

A foldable electronic device, comprising: the foldable shell assembly and the foldable screen are connected to the first shell and the second shell and can be folded along with the relative rotation of the first shell and the second shell.

When the first shell and the second shell are oppositely overlapped, the first coupling part of the conductive coupling mechanism is in contact conduction with the second coupling part, and the radio frequency circuit arranged on the first shell can select to conduct a radio frequency link where a third radio frequency line (which is shorter than the length of a second radio frequency line connected with the second antenna) connected with the second antenna is located to transmit a radio frequency signal received and transmitted by the second antenna, so that the transmitting power of the second antenna can be reduced, and the strength of the second antenna for receiving the radio frequency signal is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an expanded state of a foldable housing assembly according to one embodiment;

FIG. 2 is a schematic view of a stacked state of foldable housing assemblies of an embodiment;

FIG. 3 is a schematic view of a first coupling portion of a foldable housing assembly according to one embodiment;

FIG. 4 is a schematic view of a second coupling portion of one embodiment of a foldable housing assembly;

fig. 5 is a schematic view of an unfolded state of a foldable housing assembly of another embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 and 2, in one embodiment, foldable housing assembly 20 comprises a first housing 210, a second housing 220, and a conductive coupling mechanism 230.

The first housing 210 is provided with a radio frequency circuit 211 and a first antenna 213, and the first antenna 213 is connected to the radio frequency circuit 211 via a first radio frequency trace a. The first antenna 213 can be used for radiating a first radio frequency signal having a predetermined frequency band.

A substrate, which may be a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit Board), is further disposed in the first housing 210. On this substrate, a part of the radio frequency circuit 211 for processing a radio frequency signal may be integrated, and a controller or the like capable of controlling the operation of the electronic device may be integrated. The radio frequency circuit 211 includes at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 211 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE)), e-mail, Short Messaging Service (SMS), and the like.

The second housing 220 is rotatably connected to the first housing 210, and the first housing 210 and the second housing 220 can rotate relatively to be stacked relatively. Specifically, the foldable housing assembly 20 further includes a rotating shaft mechanism, and the first housing 210 and the second housing 220 are respectively connected to two sides of the rotating shaft mechanism. The second housing 220 can be folded (as shown in fig. 1) or unfolded (as shown in fig. 2) relative to the first housing 210 via the hinge mechanism, so that the foldable housing assembly 20 can bring the foldable screen to be folded or unfolded via the hinge mechanism. When the foldable housing assembly 20 and the foldable screen are folded, the first housing 210 and the second housing 220 can rotate relatively to each other to be stacked relatively, that is, the first housing 210 and the second housing 220 are disposed opposite to each other. The volume of the foldable electronic equipment is relatively small, and the foldable electronic equipment is convenient to store and carry.

For example, the rims of the first and

second cases

210 and 220 may include a first rim 201 and a second rim 202 disposed opposite to each other, and a third rim 203 and a fourth rim 204 disposed opposite to each other, where the first rim 201 and the second rim 202 are top rims and bottom rims of the electronic device, and the third rim 203 and the fourth rim 204 are side rims of the electronic device. The first bezel 201, the second bezel 202, the third bezel 203, and the fourth bezel 204 form a frame around the electronic device.

The second housing 220 is provided with a second antenna 221, and the second antenna 221 is connected to the rf circuit 211 through a second rf trace B. The second antenna 221 can be configured to radiate a second radio frequency signal having a predetermined frequency band.

The first antenna 213 may be correspondingly disposed on the third side frame 203 close to the first frame 201, and the second antenna 221 may be correspondingly disposed on the fourth side frame 204 close to the second frame 202.

Illustratively, the first radio frequency signal may include an operating frequency band of an LTE signal, a satellite positioning signal; the second radio frequency signal comprises a 5G signal and a WiFi signal. Specifically, the LTE signal may be divided into a Low Band (LB), an intermediate band (MB), and a High Band (HB). The Satellite positioning signal includes a Global Positioning System (GPS) signal having a frequency range of 1.2GHz to 1.6GHz, a BeiDou Navigation Satellite System (BDS) signal, and at least one of a GLONASS Satellite Navigation System (GLONASS) signal. The working frequency bands of the 5G signals may at least include an N78 frequency band and an N79 frequency band, wherein the N78 frequency band may be 3.3GHz to 3.6GHz, and the frequency range of the N79 frequency band may be 4.8GHz to 5 GHz.

In one embodiment, the first antenna 213 and the second antenna 221 may be at least one of a slot antenna, a radiating patch antenna, a microstrip antenna, and a dipole antenna. When the first antenna 213 and the second antenna 221 are slot antennas, radiators of the slot antennas may be integrated on the conductive frame of the first casing 210 and/or the second casing 220.

It should be noted that, in the embodiment of the present application, specific types of the first antenna 213 and the second antenna 221, operating frequency bands and numbers of the radiated radio frequency signals, and positions of the first housing 210 and the second housing 220 where the first antenna and the second antenna are arranged are not further limited, and may be set according to actual requirements.

In one embodiment, the rf circuit 211 may be disposed at a middle position of the first housing 210. Specifically, the rf circuit 211 may include a wafer transceiver, a modem, a central processing unit, and the like, and the rf circuit 211 may perform signal transmission of a first rf signal, a first feeding current, and the like through the first rf trace a and the first antenna 213. Accordingly, the rf circuit 211 may perform signal transmission such as a second rf signal and a second feeding current through the second rf trace B and the second antenna 221.

The conductive coupling mechanism 230 includes a first coupling portion 231 and a second coupling portion 233, wherein the first coupling portion 231 is disposed on the first housing 210 and the first coupling portion 231 is electrically connected to the rf circuit 211 via a third rf trace; the second coupling portion 233 is disposed on the second housing 220 and coupled to the second antenna 221. The length of the second radio frequency wire B is greater than the lengths of the first radio frequency wire A and the third radio frequency wire. That is, the laying path of the second rf trace B needs to cross the first housing 210 and the second housing 220, while the first rf trace a and the third rf trace are laid only in the first housing 210.

When the first housing 210 and the second housing 220 are stacked relatively, the first coupling portion 231 and the second coupling portion 233 are in contact and conducted, and the rf circuit 211 selectively conducts the rf link where the third rf trace is located, so that the second rf signal received and transmitted by the second antenna 221 is connected to the rf circuit 211 through the second coupling portion 233, the first coupling portion 231, and the third rf trace, thereby avoiding the second rf trace B from being used to transmit the second rf signal received and transmitted by the second antenna 221, and the length of the third rf trace is much smaller than that of the second rf trace B, which can shorten the rf trace, reduce the rf signal transmission and reception power loss, and improve the received signal strength and signal integrity.

In one embodiment, the first coupling portion 231 and the second coupling portion 233 are respectively disposed at corresponding positions of the first housing 210 and the second housing 220, and when the first housing 210 is stacked on the second housing 220, a position of the first coupling portion 231 projected on the second housing 220 coincides with a position of the second coupling portion 233, that is, the first coupling portion 231 and the second coupling portion 233 can be completely fastened to achieve conductive contact. For example, the second antenna 221 is disposed adjacent to the second coupling portion 233, that is, the second coupling portion 233 may be disposed on the second casing 220 near the second bezel 202 and the fourth side bezel 204. Depending on the above, the first coupling portion 231 may be disposed on the first casing 210 near the second and third side frames 202 and 203.

In one embodiment, the first coupling part 231 comprises a conductive contact and the second coupling part 233 comprises a conductive coupling contact, or the first coupling part 231 comprises a conductive coupling contact and the second coupling part 233 comprises a conductive contact; when the first housing 210 and the second housing 220 are stacked relatively, the conductive contact is in contact with the conductive coupling contact.

In one embodiment, the contact between the conductive contact and the conductive coupling contact may be a rigid contact. Wherein the conductive contact and the conductive coupling contact may be made of a magnetic material so that a magnetic attraction between each other is achieved. For example, the conductive contacts may be made of magnets, and the conductive coupling contacts may be made of metallic iron pieces, etc.

In one embodiment, the contact between the conductive contact and the conductive coupling contact may be a resilient contact. The conductive coupling contact may be in the form of an elastic member, for example, the conductive coupling contact may be in the form of an elastic pin, for example, including a thimble, a spring and a sleeve, the thimble is located at the upper side and can push the spring located in the sleeve to compress. When the conductive coupling contact is pressed by the conductive contact, the conductive coupling contact may contract and may maintain close contact with the conductive contact.

In one embodiment, the conductive contact is a conductive female port and the conductive coupling contact is a conductive male port. That is, a conductive female port (as shown in fig. 3) may be provided on the first housing 210, and a conductive male port (as shown in fig. 4) may be provided on the second housing 220. When the first housing 210 and the second housing 220 are stacked relatively, the conductive female port and the conductive male port are buckled, contacted and conducted.

In one embodiment, the conductive contact is a conductive male port and the conductive coupling contact is a conductive female port. That is, a conductive male port may be provided on the first housing 210, and a conductive female port may be provided on the second housing 220. When the first housing 210 and the second housing 220 are stacked relatively, the conductive female port and the conductive male port are buckled, contacted and conducted.

In one embodiment, the conductive male opening includes a conductive thimble, and the conductive female opening includes a thimble fastening female opening, wherein the conductive thimble and the thimble fastening female opening can be fastened to each other to achieve contact conduction, when the conductive thimble and the thimble fastening female opening can be fastened to each other, the first casing 210 and the second casing 220 can be stacked relatively, and a gap between the first casing 210 and the second casing 220 is within a preset range to achieve seamless stacking between the first casing 210 and the second casing 220.

As shown in fig. 5, in one embodiment, the foldable housing assembly 20 further comprises: the radio frequency circuit 211 comprises a first switch module 240 and a detection module 250, wherein the detection module 250 and the first switch module 240 are respectively connected with the radio frequency circuit 211.

The first switch module 240 is connected to the rf circuit 211, the second rf trace B, and the third rf trace, respectively, and is configured to turn on or turn off a first rf link between the rf circuit 211 and the second rf trace B, and a second rf link between the rf circuit 211 and the third rf trace. A detecting module 250 configured to detect stacking state information of the first housing 210 and the second housing 220, where the stacking state information includes a stacking state and a deployment state. When the stacking state information is the stacking state, the first switch module 240 is controlled to turn on the second rf link between the rf circuit 211 and the third rf trace.

In one embodiment, the detection module 250 is disposed on the first housing 210 and the second housing 220, and the detection module 250 includes one of a hall sensor assembly, a momentary switch, a capacitive sensor, an optical sensor, and a microswitch.

Illustratively, the hall sensing assembly includes a hall sensor and a magnet, wherein when the first housing 210 and the second housing 220 are unfolded, the magnet is far away from the hall sensor, and the information of the overlapping state of the first housing 210 and the second housing 220 is judged by detecting the change of the signal of the hall sensor. Referring to fig. 5, for example, a hall sensor may be disposed on the third side rim 203 of the first housing 210, and a magnet may be disposed on the fourth side rim 204 of the second housing 220. When the magnet is close to or far away from the Hall sensor, the output signals of the Hall sensor are different due to different distances of the magnet. When the first housing 210 and the second housing 220 are unfolded, the magnet is far away from the hall sensor, and the signal output by the hall sensor changes from high to low, so that when a processor connected with the hall sensor or a central processing unit of the radio frequency module detects that the signal is low, the information of the overlapped state can be judged as the unfolded state. When the magnet is close to the Hall sensor, the signal of the Hall sensor changes from low to high, so that when the signal of the Hall sensor is detected to be high by a processor or a central processing unit of the radio frequency module, the superposed state information can be judged to be a superposed state.

Alternatively, the magnet may be disposed on the third side rim 203 of the first housing 210, and the hall sensor may be disposed on the fourth side rim 204 of the second housing 220. In addition, in addition to the stacked state information of the first housing 210 and the second housing 220 may be detected by the hall sensor and the magnet, any type of mechanical or electronic switch may be used, including but not limited to a momentary switch, a capacitive sensor, an optical sensor, a micro switch (which detects the stacked state information by the vibration of the first housing 210 and/or the second housing 220), a contact switch (which determines the stacked state information by detecting the contact of the upper cover and the lower portion, for example).

In one embodiment, the detection module 250 is connected to the first coupling part 231 or the second coupling part 233, wherein the detection module 250 includes: a current detection unit for detecting current information of the first coupling part 231 or the second coupling part 233; the detection module 250 may acquire the stacking state information of the first housing 210 and the second housing 220 according to the current information.

Wherein the current detection unit can be connected with the conductive contact or the coupling conductive contact. Specifically, the current detection unit is a sampling resistor, and a conductive contact of the current detection unit is grounded through the sampling resistor. When the conductive contact is contacted with the coupling conductive contact, the current values of the conductive contact and the conductive coupling contact meet the preset threshold value. The central processing of the processor or rf circuit 211 connected to the current detecting unit can obtain the information of the stacking state of the first housing 210 and the second housing 220 according to the current information of the conductive contact or the conductive coupling contact.

In one embodiment, the first switch module 240 may include a multi-channel selection switch, a single-pole double-throw switch, and a plurality of electronic switch tubes.

In the embodiment of the present application, the first switch module 240 is taken as an example of a multi-channel selection switch for explanation. The control of the multi-channel selection switch is connected with the radio frequency circuit 211, and the matching end of the multi-channel selection switch is respectively connected with the second radio frequency wiring B and the third radio frequency wiring. When the rf circuit 211 receives the overlay state information of the detecting module 250, it may output a corresponding control signal to the multi-channel selection switch to selectively connect the rf link where the second rf trace B or the third rf trace is located.

When the stacking state information is in the expanded state, the central processing unit in the radio frequency circuit 211 may correspondingly output a high level signal to the matching end of the multi-channel selection switch connected to the second radio frequency trace B to conduct the matching end, so as to conduct the first radio frequency link between the radio frequency circuit 211 and the second radio frequency trace B; when the stacking state information is the stacking state, the cpu in the rf circuit 211 may correspondingly output a high level signal to the matching terminal of the multi-channel selection switch connected to the third rf trace to turn on the matching terminal, so as to turn on the second rf link between the rf circuit 211 and the third rf trace. That is, the rf circuit 211 may control the on-off state of the first switch module 240 according to the stacking state information of the first casing 210 and the second casing 220, so as to selectively connect the rf link where the second rf trace B or the third rf trace is located to transmit the rf signal received and transmitted by the second antenna 221, and further select the shorter third rf trace to transmit the rf signal received and transmitted by the second antenna 221 when the first coupling portion 231 is in contact with and connected to the second coupling portion 233, so as to reduce the rf signal transmission and reception power loss, and improve the received signal strength and signal integrity.

In one embodiment, the foldable housing assembly 20 further comprises a first ground reference disposed around the first coupling portion 231 and a second ground reference 235 disposed around the second coupling portion 233. The first coupling portion 231 is connected to the first antenna 213 through a signal line, the second coupling portion 233 is connected to the second antenna 221 through a signal line, and the first reference ground and the second reference ground 235 are respectively connected to a ground layer disposed on the first casing 210 or the second casing 220. The ground layer is understood to be the ground layer of the substrate.

In one embodiment, the first antenna 213 may include a first radiator, a first feed point; the second antenna 221 may include a second radiator and a second feed point. The first radiator may be integrated in the third side frame 203, and the second radiator may be integrated in the fourth side frame 204. The first coupling portion 231 may be connected to the first feeding point through a signal line, and the first feeding point may be connected to the first radiator through a conductive elastic sheet, a screw, or a foam, so as to feed the first feeding point current output by the rf circuit 211 to the first radiator, so as to excite the first radiator to generate a first rf signal resonant at a predetermined frequency band. Accordingly, the second coupling portion 233 may be connected to a second feeding point through a signal line, and the second feeding point may be connected to the second radiator through a conductive elastic sheet, a screw, or a foam, so as to feed the second feeding point current output by the rf circuit 211 to the second radiator, so as to excite a second rf signal resonant at the predetermined frequency band on the second radiator. The working frequency bands of the first radio frequency signal and the second radio frequency signal may be the same or different, and the working frequency bands of the first radio frequency signal and the second radio frequency signal may be set according to actual requirements.

In one embodiment, the first antenna 213 further includes a first matching circuit disposed between the first radiator and the radio frequency circuit 211, wherein the first matching circuit may be configured to adjust an input impedance of the first radiator to improve transmission performance of the first radiator. Correspondingly, the second antenna 221 further includes a second matching circuit disposed between the second radiator and the rf circuit 211, where the second matching circuit may be configured to adjust an input impedance of the second radiator to improve transmission performance of the second radiator.

In particular, the first matching circuit and the second matching circuit may comprise a combination of capacitors and/or inductors, etc. In the embodiment of the present application, the specific form of the first matching circuit and the second matching circuit is not further limited.

In one embodiment, the number of the second antenna 221, the conductive coupling mechanism 230, the second rf trace B, and the third rf trace is the same and is multiple. That is, a plurality of second antennas 221 may be disposed on the second housing 220, wherein the number of the conductive coupling mechanism 230, the number of the second rf traces B, and the number of the third rf traces are equal to the number of the second antennas 221. That is, each of the second antennas 221 may be connected to the rf circuit 211 through the second rf trace B or the third rf trace based on the conductive coupling mechanism 230. That is, when the first coupling portion 231 is in conductive contact with the second coupling portion 233, the rf circuit 211 can selectively connect the rf link where each second antenna 221 and the corresponding third rf trace are located, so as to shorten the rf trace of the second antenna 221, thereby reducing the transmitting power of each second antenna 221 and increasing the strength of the rf signal received by each second antenna 221.

In one embodiment, the number of the second antennas 221 is multiple, and the foldable housing assembly 20 further includes a second switch module 260, wherein the second switch module 260 is coupled between the second coupling portion 233 and the multiple second antennas 221. The rf circuit 211 is further connected to the second switch module 260, and is configured to selectively connect the target second antenna 221 and the second coupling portion 233. When the number of the first switch modules 240 is limited due to a strained substrate layout, a conductive coupling mechanism 230 may be provided to selectively connect the connection path between the target second antenna 221 and the second coupling portion 233. Here, the target second antenna 221 may be understood as a second antenna 221 which receives the worst signal quality of the second radio frequency signal when the first housing 210 and the second housing 220 are in the overlapped state, among the plurality of second antennas 221. The rf circuit 211 can select a connection path between the target second antenna 221 and the second coupling portion 233, so as to shorten the length of the rf trace of the second antenna 221, correspondingly reduce the transmission power of the target second antenna 221, and improve the strength of the rf signal received by the target second antenna 221, so that the performance of each second antenna 221 can meet the communication requirement, and further improve the communication performance of the foldable electronic device.

In one embodiment, a foldable electronic device comprises the foldable housing assembly 20 and the foldable screen of any of the above embodiments. The foldable screen is laid on the foldable housing assembly 20. The foldable housing assembly 20 is used to carry a foldable screen into the row of foldable housing assemblies 20 while shielding the electronic assembly. The foldable screen is connected to the first housing 210 and the second housing 220, and can be folded along with the relative rotation of the first housing 210 and the second housing 220.

Specifically, the foldable screen is sequentially laid on the first housing 210, the rotating shaft mechanism and the second housing 220, and the foldable screen is bent or unfolded along with the mutual rotation of the first housing 210 and the second housing 220. In this embodiment, the foldable screen is a flexible display screen.

It is understood that the foldable electronic device may be a multi-purpose mobile phone implementing a small screen display, or a large screen display, or a bent screen display, presenting multiple use functions. For example: when the foldable screen of the foldable electronic device is in a stacked state, the first shell 210 and the second shell 220 can be stacked together, and the foldable electronic device can be used as a mobile phone, so that the foldable electronic device is convenient for a user to carry and occupies a small space. When the foldable screen of the foldable electronic device is bent at a certain angle, the first shell 210 is unfolded relative to the second shell 220 and forms a certain included angle with each other, and the foldable electronic device can be used as a notebook computer. And when the foldable electronic device is in an unfolded state on the foldable screen, the first shell 210 is unfolded relative to the second shell 220 and is parallel and level to each other, and the foldable electronic device can be used as a tablet computer to increase the display area, obtain more display contents and improve the user experience. Of course, the foldable electronic device can also be a multi-purpose tablet computer, or a multi-purpose notebook computer, or other multi-function electronic devices with multiple mode switching.

When the foldable electronic device includes the foldable housing assembly 20 in any of the embodiments, when the foldable screen of the foldable electronic device is in a stacked shape, the first coupling portion 231 and the second coupling portion 233 are in conductive contact, and the second antenna 221 on the foldable electronic device can select the third rf trace with a shorter length to transmit the rf signal thereof, so as to improve the strength of the rf signal received by the second antenna 221, so that the performance of the second antenna 221 can meet the communication requirement, and further the communication performance of the foldable electronic device can be improved.

Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Suitable non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A foldable housing assembly, comprising:

an electrically conductive coupling mechanism comprising:

the first switch module is respectively connected with the radio frequency circuit, the second radio frequency wire and the third radio frequency wire and is used for switching on or switching off a first radio frequency link between the radio frequency circuit and the second radio frequency wire and a second radio frequency link between the radio frequency circuit and the third radio frequency wire;

when the first shell and the second shell are in a relatively overlapped state, the first coupling part is in contact conduction with the second coupling part, the radio frequency circuit controls the first switch module to conduct a second radio frequency link between the radio frequency circuit and a third radio frequency wire so as to transmit a radio frequency signal received and transmitted by the second antenna, wherein the length of the second radio frequency wire is greater than the lengths of the first radio frequency wire and the third radio frequency wire.

2. The foldable housing assembly of claim 1, wherein the first coupling portion comprises a conductive contact and the second coupling portion comprises a conductive coupling contact, or wherein the first coupling portion comprises a conductive coupling contact and the second coupling portion comprises a conductive contact;

when the first shell and the second shell are oppositely overlapped, the conductive contact is in contact conduction with the conductive coupling contact.

3. The foldable housing assembly of claim 2, wherein the conductive contacts are conductive male ports and the conductive coupling contacts are conductive female ports, the conductive contacts snap-fit with the conductive coupling contacts.

4. The foldable housing assembly of claim 1, further comprising:

a detection module configured to detect stacking state information of the first housing and the second housing, the stacking state information including a stacking state and a deployed state;

the radio frequency circuit is respectively connected with the detection module, and when the superposition state information is in the superposition state, the first switch module is controlled to conduct a second radio frequency link between the radio frequency circuit and a third radio frequency wire.

5. The foldable housing assembly of claim 4, wherein the detection module is disposed on the first and second housings, the detection module comprising one of a Hall sensing assembly, a momentary switch, a capacitive sensor, an optical sensor, and a microswitch.

6. The foldable housing assembly of claim 4, wherein the detection module is connected with the first coupling portion or the second coupling portion, wherein,

the detection module comprises: a current detection unit for detecting current information of the first coupling part or the second coupling part; acquiring the information of the stacking state of the first housing and the second housing according to the current information.

7. The foldable housing assembly of claim 1, wherein the second antenna, the conductive coupling mechanism, the second radio frequency trace, and the third radio frequency trace are equal in number and multiple in number.

8. The foldable housing assembly of claim 1, wherein the second antenna is plural in number, the foldable housing assembly further comprising:

a second switch module coupled between the second coupling part and the plurality of second antennas;

the radio frequency circuit is further connected with the second switch module, and the second switch module is used for selectively conducting a connection path between the target second antenna and the second coupling part.

9. The foldable housing assembly of claim 1, further comprising a first ground reference disposed around the first coupling portion, and a second ground reference disposed around the second coupling portion; the first coupling part is connected with the first antenna through a first signal wire, the second coupling part is connected with the second antenna through a second signal wire, and the first reference ground wire and the second reference ground wire are respectively connected with a stratum arranged on the first shell or the second shell.

10. A foldable electronic device, comprising:

a foldable housing assembly as recited in any one of claims 1-9;

and the foldable screen is connected to the first shell and the second shell and can be folded along with the relative rotation of the first shell and the second shell.