CN217523043U

CN217523043U - Terminal device

Info

Publication number: CN217523043U
Application number: CN202220785788.1U
Authority: CN
Inventors: 李家桢; 汤孙强; 王柯鑫; 吴晓秋
Original assignee: Huaqin Technology Co Ltd
Current assignee: Huaqin Technology Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-09-30
Anticipated expiration: 2032-03-29

Abstract

The embodiment of the application relates to the technical field of equipment electrostatic protection, and discloses a terminal device. The terminal equipment comprises a middle frame, a rear cover, a first conductor, a second conductor and an antenna; the middle frame is made of insulating materials; the rear cover is connected with the middle frame and forms an inner cavity with the middle frame in a surrounding mode, and the rear cover is made of a conductive material; the first conductor is arranged on the middle frame and extends into the inner cavity; the second electric conductor is arranged on the rear cover and extends into the inner cavity, and the second electric conductor is electrically contacted with the first electric conductor; the antenna is attached to the middle frame, and the ground plane of the antenna is electrically connected with the first conductor. The terminal equipment provided by the embodiment of the application can effectively realize the electrostatic discharge of the terminal equipment under the condition of ensuring the antenna clearance environment.

Description

Terminal device

Technical Field

The embodiment of the application relates to the technical field of electrostatic protection of equipment, in particular to terminal equipment.

Background

In terminal equipment such as a mobile phone, external static electricity easily enters the inside of the terminal equipment from the surface of a display screen and a frame gap. If the static electricity entering the terminal equipment is not processed in time, the electronic device of the terminal equipment is easy to lose effectiveness and damage caused by static electricity accumulation. Therefore, for the terminal equipment, certain electrostatic protection measures need to be taken.

However, in some cases, the terminal equipment needs to meet the headroom requirements of the internal antenna, resulting in an alloy that can discharge static electricity away from the antenna. Therefore, how to effectively realize the electrostatic discharge of the terminal device under the condition of ensuring the antenna clearance environment is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to provide a terminal device, which can effectively realize electrostatic discharge of the terminal device under the condition of ensuring an antenna clearance environment.

In order to solve the above technical problem, an embodiment of the present application provides a terminal device, including a middle frame, a rear cover, a first conductor, a second conductor, and an antenna; the middle frame is made of an insulating material; the rear cover is connected with the middle frame and forms an inner cavity with the middle frame in a surrounding mode, and the rear cover is made of a conductive material; the first electric conductor is arranged on the middle frame and extends into the inner cavity; the second electric conductor is arranged on the rear cover and extends into the inner cavity, and the second electric conductor is electrically contacted with the first electric conductor; the antenna is attached to the middle frame, and the ground plane of the antenna is electrically connected with the first conductor.

According to the terminal device provided by the embodiment of the application, a static leakage path is formed between the first conductor, the second conductor and the conductive rear cover which are electrically contacted with the insulating middle frame, and the ground plane of the antenna is electrically connected with the first conductor. In this way, static electricity entering the terminal device from the outside can be guided out through the static electricity leakage path formed by the first electric conductor and the second electric conductor, so as to replace the static electricity leakage form of the alloy part extending to the plastic frame. Namely, the plastic frame and the alloy part are replaced by the insulated middle frame, so that the electrostatic discharge of the terminal equipment can be effectively realized under the condition of ensuring the clearance environment of the antenna.

In addition, the center includes mainboard bearing part and encircles the portion that closes that encloses that sets up around mainboard bearing part, and first electric conductor setting is on mainboard bearing part, and the back lid closes and forms the inner chamber on partly enclosing the portion and between mainboard bearing part. Therefore, the mainboard and other components can be installed through the mainboard bearing part, and an inner cavity can be enclosed between the mainboard bearing part and the rear cover through the enclosing part so as to form a closed environment for accommodating the mainboard.

In addition, the terminal equipment further comprises a main board, the main board is arranged on the main board bearing part and located in the inner cavity, the antenna comprises an antenna part used for radiating signals and a connecting cable used for transmitting signals, the antenna part is arranged at the joint of the main board bearing part and the enclosing part, one end of the connecting cable is electrically connected with the antenna part, and the other end of the connecting cable is electrically connected with the main board. Therefore, the antenna can be controlled by the mainboard to realize a normal signal radiation function.

In addition, the terminal equipment further comprises an antenna cover, and the antenna cover is arranged on the middle frame and is opposite to the antenna part. Therefore, the antenna can be protected by the antenna cover, and the antenna can normally radiate electromagnetic wave signals outwards.

In addition, a fixing groove is formed in the main board bearing portion, and the other end of the connecting cable penetrates through the fixing groove and then is electrically connected with the main board. Thus, after the connecting cable is fixed by the fixing groove, the electric connection with the main board is realized along the preset direction.

In addition, the mainboard bearing part is provided with a wiring channel, and the connecting cable is arranged along the wiring channel. Like this, be favorable to avoiding appearing the condition that the connecting cable was arranged in disorder.

In addition, terminal equipment still includes the screen module, and the screen module sets up the one side of keeping away from the mainboard at the center, and the screen module is connected with the mainboard electricity. Therefore, the screen module can realize the picture display function of the terminal equipment.

In addition, the antenna has a plurality of, and a plurality of antennas interval sets up each other, and first electric conductor and second electric conductor all have a plurality ofly and with a plurality of antennas one-to-one. In this way, the static electricity can be discharged at each antenna through the conducting paths formed by the first and second conductors.

In addition, the antenna has a plurality of antennas, ground planes of the plurality of antennas are connected to each other, and at least one of the first conductor and the second conductor is provided. Therefore, the ground planes of the plurality of antennas are connected together, and the ground planes of the antennas can be effectively utilized to realize conduction.

In addition, the first conductor is copper foil, and the second conductor is conductive foam. Therefore, the fixing effect between the copper foil and the middle frame can be ensured, and the electric contact between the conductive foam and the copper foil can be conveniently realized.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic bottom view of a terminal device with a rear cover removed in some cases;

FIG. 2 is a schematic illustration in partial cross-sectional view of a terminal device with a backshell removed in some instances;

fig. 3 is an exploded schematic view of a terminal device provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a middle frame in a terminal device provided in an embodiment of the present application;

FIG. 5 is an enlarged schematic view of portion A of FIG. 4;

fig. 6 is a schematic perspective view of a terminal device provided in an embodiment of the present application from a viewing angle;

fig. 7 is a schematic perspective view of a terminal device provided in an embodiment of the present application from another viewing angle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following describes each embodiment of the present application in detail with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in various embodiments of the present application in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.

Static electricity is a common phenomenon in life, and for electronic equipment, certain static electricity protection measures need to be taken in order to prevent electronic devices from being failed and damaged due to static electricity accumulation. As in most electronic devices, it is necessary to design a leakage path for static electricity to accelerate the leakage of static electricity and to lead the static electricity out of the electronic device in time.

Take a vehicle-mounted terminal device as an example. With the increasing economic level, the demand of people for automobiles is increasing. The automobile electronic industry is continuously developed, communication of people on driving roads and during vehicle-mounted entertainment is greatly facilitated, and the most common vehicle-mounted antenna is applied. According to statistics, the number of automobiles kept in China is about 2.6 hundred million in China alone, and meanwhile, the performance requirements of people on vehicle-mounted entertainment and communication are higher and higher. The quality of the antenna performance directly determines the user experience of a car, and therefore the sales volume of the car is influenced.

With the popularization and application of 4G (fourth generation mobile communication technology)/5G (fifth generation mobile communication technology), the arrangement environment of the antenna becomes more and more important. The environment of the antenna has many factors, such as the antenna clearance environment and the screen static electricity, which are not limited to each other. The instantaneous voltage of static electricity is very big, and is very big to the damage of on-vehicle central control electronic components, and the factor that produces static electricity is visible everywhere in the life, therefore is vital to the prevention of static again. The 4G/5G antenna requires a good clearance environment, and the clearance environment requires that the alloy needs to be far away from the antenna, so that external static electricity cannot be led out of the static electricity through metal in time when passing through the screen, and the screen is damaged due to the static electricity.

Therefore, how to effectively realize the electrostatic discharge of the terminal device under the condition of ensuring the antenna clearance environment is an urgent problem to be solved.

The static protection measures taken by the terminal device in some situations will be described by taking the vehicle-mounted terminal device as an example. As shown in fig. 1 and fig. 2, the display screen 103 of the vehicle-mounted terminal device is mounted in the plastic frame 101 in a dispensing manner, a rear housing is mounted outside the plastic frame 101, and an antenna is mounted in a space between the rear housing and the plastic frame 101. The plastic frame 101 is filled with an alloy portion 102, and the alloy portion 102 extends to the dispensing surface of the display screen 103. Based on the conductivity of the alloy part 102, when external static electricity enters from the surface of the display screen 103 and a gap of the plastic frame 101, high-voltage charges can be firstly led out in time through the alloy part 102 exposed from the glue dispensing surface, and the damage to the display screen 103 and related components is avoided.

In this case, however, the alloy portion affects the clearance environment of the antenna. Therefore, as the antenna demand of the in-vehicle terminal device increases, the antenna headroom environment is required to be larger. In order to ensure the performance requirements of the antenna, the alloy near the dispensing surface of the screen module needs to be cut to the maximum extent. Therefore, the alloy cannot be directly designed on the periphery of the plastic frame, i.e., cannot extend to the dispensing surface of the screen module. In addition, the screen module is attached to the frame in a dispensing manner, and when the dispensing surface is a combination manner of the plastic frame and the alloy part, because of different materials, the dyne values (the magnitude of surface tension) of the plastic surface and the alloy surface are different, so that the bonding force on the dispensing surface of the screen module is different, and the risk of falling off of the screen module is caused.

Here, the antenna in the in-vehicle terminal device may include a bluetooth antenna, a WiFi (wireless communication technology) antenna, a 4G antenna, a 5G antenna, a 6G (sixth generation mobile communication technology) antenna, a GPS (Global Positioning System) antenna, a radio antenna, a television antenna, and the like.

In order to effectively realize electrostatic discharge of a terminal device under the condition of ensuring an antenna clearance environment, the embodiment of the application provides a solution. A plastic frame and an alloy part are replaced by the plastic middle frame, and a separate static discharge path is designed between the plastic middle frame and the metal rear cover in combination with the position of the antenna. When external static electricity enters through the surface of the display screen and the gap of the middle frame, high-voltage charges can flow through the antennas and then are led out through a static electricity leakage path between the plastic middle frame and the metal rear cover. Therefore, under the condition of ensuring the antenna clearance environment, the static discharge of the terminal equipment is effectively realized.

The material of the middle frame is not limited to plastic, and other insulating materials such as insulating rubber and insulating resin may be used. Meanwhile, the material of the rear cover is not limited to metal, and other conductive materials such as conductive rubber, conductive resin and the like can be adopted.

A specific implementation of the terminal device provided in the embodiment of the present application is described below with reference to fig. 3.

As shown in fig. 3, the terminal device provided by the embodiment of the present application includes a middle frame 10, a rear cover 20, a first conductive body 30, a second conductive body 40, and an antenna 50; wherein, the middle frame 10 is made of insulating material; the rear cover 20 is arranged on the middle frame 10 and forms an inner cavity with the middle frame 10 in an enclosing mode, and the rear cover 20 is made of a conductive material; the first conductor 30 is arranged on the middle frame 10 and extends into the inner cavity; a second conductor 40 is arranged on the back cover 20 and extends into the inner cavity, and the second conductor 40 is electrically contacted with the first conductor 30; the antenna 50 is attached to the middle frame 10, and the ground plane of the antenna 50 is electrically connected to the first conductor 30.

The middle frame 10 is a component for mounting the main board 60 and other components in the terminal device, and the middle frame 10 may be made of an insulating material such as plastic. The rear cover 20 is a part of the terminal device which covers the middle frame 10, the rear cover 20 is installed on the middle frame 10 and encloses an inner cavity with the middle frame 10, the main board 60 can be placed in the inner cavity, and the rear cover 20 is made of conductive materials such as metal, so that favorable conditions are provided for leading out static electricity inside the terminal device. The first and second

conductive bodies

30 and 40 are members that establish an electrostatic discharge path between the middle frame 10 and the rear cover 20, and the first and second

conductive bodies

30 and 40 may be copper foils, conductive foam, or conductive tapes.

The antenna 50 is a medium for transmitting and receiving electromagnetic signals in the terminal device, and the antenna 50 may be a PCB (Printed Circuit Board) antenna, a ceramic antenna, an FPC (Flexible Printed Circuit Board) antenna 50, or an LDS (Laser-Direct-structuring) antenna. In order to facilitate the connection of the antenna 50 with the middle frame 10, in some embodiments, an adhesive FPC antenna may be used, and the FPC antenna is attached to the middle frame 10 in an adhesive manner.

In the terminal device provided by the embodiment of the present application, an electrostatic discharge path is formed between the first conductor 30 and the second conductor 40, which are electrically contacted, of the insulating middle frame 10 and the conductive back cover 20, and the ground plane of the antenna 50 is electrically connected to the first conductor 30. Thus, static electricity entering the terminal device from the outside can be conducted through the static electricity leakage path formed by the first conductor 30 and the second conductor 40, so as to replace the static electricity leakage form of the alloy part extending to the plastic frame. Namely, the insulating middle frame 10 replaces a plastic frame and an alloy part, so that the electrostatic discharge of the terminal device can be effectively realized under the condition of ensuring the clearance environment of the antenna 50.

In addition, after the alloy part is removed, the problem of bonding force difference at the dispensing bonding surface of the screen module 80 and the middle frame 10 due to the alloy can be avoided, so that the risk of falling off of the screen module 80 is reduced.

In some embodiments of the present application, as shown in fig. 4, the middle frame 10 may include a motherboard bearing portion 110 and a surrounding portion 120 disposed around an edge of the motherboard bearing portion 110, the first conductive body 30 is disposed on the motherboard bearing portion 110, and the rear cover 20 covers a portion of the surrounding portion 120 and forms an inner cavity with the motherboard bearing portion 110.

The main board bearing portion 110 is a portion of the middle frame 10 for mounting the main board 60, and can also be used for mounting the screen module 80. The main board bearing portion 110 may be disposed in a plate shape, and the shape of the main board bearing portion 110 may be, but is not limited to, a rectangle, a square, a circle, or other irregular shapes. The enclosing part 120 is a part of the middle frame 10 for closing with the back cover 20 to form an inner cavity, and therefore, the enclosing part 120 protrudes a certain height from the main board bearing part 110. Meanwhile, the enclosing part 120 can be aligned with the edge of the screen module 80, so that the screen module 80 can be fixed on the middle frame 10 in a dispensing manner.

The main board bearing part 110 can play a role of bearing the main board 60 and the screen module 80, and the enclosing part 120 can form a closed space between the main board bearing part 110 and the rear cover 20 to contain the main board 60. And, the enclosure portion 120 can provide a foundation for fixing the screen module 80.

In some embodiments of the present application, the terminal device may further include a main board 60, the main board 60 is disposed on the main board bearing portion 110 and located in the inner cavity, the antenna 50 includes an antenna portion 510 for radiating a signal and a connection cable 520 for transmitting a signal, the antenna portion 510 is disposed at a connection position of the main board bearing portion 110 and the enclosure portion 120, one end of the connection cable 520 is electrically connected to the antenna portion 510, and the other end is electrically connected to the main board 60.

The main board 60 is a circuit board for controlling the terminal device, and components required for controlling are integrated on the circuit board. The main board 60 is electrically connected to the antenna portion 510 of the antenna 50 via the connection cable 520 of the antenna 50, thereby realizing transmission and reception of signals.

In some embodiments of the present application, the terminal device may further include an antenna cover 70, and the antenna cover 70 is disposed on the middle frame 10 and faces the antenna portion 510 of the antenna 50.

The antenna cover 70 is a part that is mounted on the middle frame 10 and covers the antenna portion 510 of the antenna 50, and the antenna cover 70 can protect the antenna portion 510 of the antenna 50 from the external environment. Meanwhile, the electromagnetic wave radiated by the antenna portion 510 can be radiated well by the good electromagnetic wave penetration characteristic of itself.

In some embodiments of the present application, as shown in fig. 5, a fixing groove 111 may be disposed on the motherboard bearing part 110, and the other end of the connection cable 520 passes through the fixing groove 111 and then is electrically connected to the motherboard 60.

The fixing groove 111 may provide a fixing and guiding function for the connection cable 520 of the antenna 50, so that the connection portion of the connection cable 520 with the main board 60 may be electrically connected with the main board 60 in a predetermined direction with good fixing. Thereby avoiding the situation that the connection part with the main board 60 is loosened or even falls off due to the lack of fixation of the connecting cable 520.

In some embodiments of the present application, as shown in fig. 5, the routing channel 112 may be disposed on the motherboard carrying portion 110, and the connection cable 520 is disposed along the routing channel 112.

The routing channel 112 is a channel formed by a series of baffles disposed on the motherboard carrying portion 110, and the connection cable 520 may be clamped in a gap reserved between the baffles, so as to fix the position of the connection cable 520 on the motherboard carrying portion 110. Meanwhile, under the condition that the connecting cable 520 is long, the condition that the wiring is messy can be avoided.

In some embodiments of the present application, the terminal device may further include a screen module 80, the screen module 80 is disposed on a side of the main board bearing portion 110 away from the main board 60, and the screen module 80 is electrically connected to the main board 60.

The screen module 80 is a display component in the terminal device, and the screen module 80 can realize the picture display function of the terminal device. The screen module 80 may be disposed on a side of the main board bearing portion 110 away from the main board 60, i.e., a side away from the inner cavity.

In some embodiments of the present application, there may be a plurality of antennas 50, the plurality of antennas 50 are spaced apart from each other, and the first conductive body 30 and the second conductive body 40 are each provided in plurality and correspond to the plurality of antennas 50 one by one.

The plurality of antennas 50 may include a WiFi antenna, a 4G antenna, a 5G antenna, a 6G antenna, a GPS antenna, a radio antenna, and a television antenna, and the plurality of antennas 50 may be disposed on the middle frame 10 at intervals. As shown in fig. 3, in some cases, the plurality of antennas are spaced apart from each other by a certain distance. The antenna 50 shown in fig. 3 is a 4G main set antenna, a 4G diversity antenna, and a WIFI antenna from the left side to the right side of the drawing plane, the 4G main set antenna, the 4G diversity antenna are connected to the same side of the middle frame 10, and the WIFI antenna is connected to the other side of the middle frame 10. The plurality of antennas 50 are spaced apart from each other, so that each antenna 50 can radiate a signal outward well. Accordingly, each of the antennas 50 corresponds to one electrostatic discharge path, i.e., each of the first conductors 30 and the second conductors 40 corresponds to one of the antennas 50.

In some embodiments of the present application, there may be a plurality of antennas 50, the ground planes of the plurality of antennas 50 are connected to each other, and at least one of the first conductor 30 and the second conductor 40 is provided.

In other cases, multiple antennas 50 may be integrated with each other, e.g., different antennas 50 may be designed on the same substrate. In this case, the ground planes of the plurality of antennas 50 may be connected together to widen the conductive area, increase the conductive area, and achieve better electrostatic conductivity. Accordingly, one or more first and second

conductive bodies

30 and 40 may be provided, and effective discharge of static electricity may be achieved.

In some embodiments of the present application, first electrical conductor 30 may be a copper foil and second electrical conductor 40 may be a conductive foam.

Copper foil may be directly bonded to the dielectric center frame 10 and conductive foam may be placed in the slots of the back cover 20.

In addition, fig. 6 and fig. 7 respectively show structures of the terminal device provided by the embodiment of the present application at different viewing angles.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice.

Claims

1. A terminal device, comprising:

the middle frame is made of insulating materials;

the rear cover is connected with the middle frame and encloses an inner cavity with the middle frame, and the rear cover is made of a conductive material;

the first electric conductor is arranged on the middle frame and extends into the inner cavity;

the second electric conductor is arranged on the rear cover and extends into the inner cavity, and the second electric conductor is electrically contacted with the first electric conductor;

and the antenna is attached to the middle frame, and the ground plane of the antenna is electrically connected with the first conductor.

2. The terminal device of claim 1, wherein:

the middle frame comprises a main board bearing part and a surrounding part arranged around the main board bearing part, the first electric conductor is arranged on the main board bearing part, and the rear cover covers part of the surrounding part and forms the inner cavity with the main board bearing part.

3. The terminal device of claim 2, wherein:

the antenna comprises an antenna part for radiating signals and a connecting cable for transmitting signals, the antenna part is arranged at the joint of the main board bearing part and the enclosing part, one end of the connecting cable is electrically connected with the antenna part, and the other end of the connecting cable is electrically connected with the main board.

4. The terminal device of claim 3, wherein:

the antenna cover is arranged on the middle frame and is opposite to the antenna part.

5. A terminal device according to claim 3, characterized in that:

the mainboard bearing part is provided with a fixed groove, and the other end of the connecting cable penetrates through the fixed groove and then is electrically connected with the mainboard.

6. The terminal device of claim 3, wherein:

the main board bearing part is provided with a wiring channel, and the connecting cable is arranged along the wiring channel.

7. The terminal device of claim 3, wherein:

still include the screen module, the screen module sets up the center is kept away from one side of mainboard, the screen module with the mainboard electricity is connected.

8. The terminal device of claim 1, wherein:

the antenna comprises a plurality of antennas, the antennas are arranged at intervals, and the first conductor and the second conductor are both provided with a plurality of antennas and correspond to the antennas one by one.

9. The terminal device of claim 1, wherein:

the antenna has a plurality of antennas, the ground planes of the plurality of antennas are connected to each other, and at least one of the first conductor and the second conductor is provided.

10. The terminal device of claim 1, wherein:

the first conductor is copper foil, and the second conductor is conductive foam.