CN211629287U - Electronic equipment and antenna assembly thereof - Google Patents

Abstract

The application provides an electronic device and an antenna assembly thereof; the antenna assembly comprises a circuit board, a spring probe and a metal frame; the metal frame comprises a main body part and a connecting part, wherein one side of the main body part is provided with an appearance surface, and the other side of the main body part is connected with the connecting part; one end of the spring probe is fixedly arranged on the circuit board and is electrically conducted with the circuit board; the other end of the spring probe is elastically abutted to the connecting part so as to realize the electrical conduction of the metal frame and the circuit board. According to the electronic equipment and the antenna assembly thereof, the spring probe is utilized to realize the electrical connection between the circuit board and the metal frame, so that the connection reliability between the circuit board and the metal frame can be improved, and the electronic equipment and the antenna assembly thereof have the characteristics of good conductivity and high conductivity stability; in addition, through spring probe and metal frame elastic contact, can play the cushioning effect in the vibration, reduction friction that can be very big avoids the circumstances of fretting corrosion to take place.

Description

Electronic equipment and antenna assembly thereof

Technical Field

The invention relates to the technical field of electrical connection structures inside electronic equipment, in particular to electronic equipment and an antenna assembly thereof.

Background

With the advent of the 5G era, the number of antennas of electronic devices such as mobile phones and tablet computers is increasing, and the requirements for the antennas are also increasing. Wherein using a housing to act as an antenna is a common solution. At present, the mainstream method in the market is to connect the main board and the metal on the middle frame together through the elastic sheet.

The scheme of connecting the elastic sheet and the middle frame mainly has the problem of fretting corrosion, and the specific reasons are as follows. In the testing process or long-term use of electronic equipment such as a mobile phone, the contact position between the elastic sheet on the main board and the middle frame is often in a repeated motion state, especially the main board and the shell have a relative motion in the Z direction (the thickness direction of the electronic equipment or the elastic contact and abutting direction of the elastic sheet), so that the elastic sheet has a relative motion in the plane perpendicular to the Z direction, and the sliding friction can cause serious abrasion over time. In addition, the shell fragment on the mainboard generally is stainless steel, and the metal frame is materials such as aluminum alloy, and this kind of hardness difference can lead to the lower party of hardness to produce under the circular telegram environment and corrode, therefore the position of center and shell fragment contact or shell fragment self can be continuous produces the fretting corrosion, and then has the risk of inefficacy, causes to connect badly very easily or even opens circuit, influences electronic equipment's antenna performance, and then can very big degree reduction user's use experience.

Disclosure of Invention

In one aspect, the present application provides an antenna assembly, which includes a circuit board, a spring probe, and a metal frame; the metal frame comprises a main body part and a connecting part, wherein one side of the main body part is provided with an appearance surface, and the other side of the main body part is connected with the connecting part; one end of the spring probe is fixedly arranged on the circuit board and is electrically conducted with the circuit board; the other end of the spring probe is elastically abutted to the connecting part so as to realize the electrical conduction of the metal frame and the circuit board.

In a second aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a battery module, a display module, and the antenna assembly described in any of the foregoing embodiments, and the display module and the battery module are respectively connected to a circuit board.

According to the electronic equipment and the antenna assembly thereof, the spring probe is utilized to realize the electrical connection between the circuit board and the metal frame, so that the connection reliability between the circuit board and the metal frame can be improved, and the electronic equipment and the antenna assembly thereof have the characteristics of good conductivity and high conductivity stability; in addition, through spring probe and metal frame elastic contact, can play the cushioning effect in the vibration, reduction friction that can be very big avoids the circumstances of fretting corrosion to take place.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of an electronic device according to the present application;

FIG. 2 is a schematic diagram of a split structure of the electronic device in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of a partial structure of the electronic device in the embodiment of FIG. 1;

FIG. 4 is a schematic diagram of an antenna assembly of the electronic device of the embodiment of FIG. 1, partially disassembled;

3 FIG. 3 5 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 of 3 the 3 structure 3 at 3 A 3- 3 A 3 in 3 FIG. 3 3 3; 3

FIG. 6 is an enlarged view of a portion of the structure at B in FIG. 4;

FIG. 7 is a schematic view of the fastener engaging the pogo pin;

fig. 8 is a schematic structural diagram of a communication-related module according to an embodiment of the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic overall structure diagram of an embodiment of an electronic device of the present application, and fig. 2 is a schematic disassembled structure diagram of the electronic device in the embodiment of fig. 1; it should be noted that, the electronic device in the present application may include an electronic device with an antenna assembly, such as a mobile phone, a tablet computer, a notebook computer, and a wearable device. The present embodiment is illustrated in the drawings only by the structure of a single mobile phone. Of course, in other embodiments, the mobile phone is not limited to the straight-plate structure shown in the figure of this embodiment, and may also be in a folding screen, a surrounding screen, or other structural forms. The electronic device in this embodiment includes, but is not limited to, the antenna assembly 10, the display module 20, the battery module 30, and the housing 40. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Specifically, the antenna assembly 10 includes a circuit board 100 and a metal bezel 200; the technical scheme in the application is that the metal frame 200 of the electronic equipment is used as an antenna. The metal frame 200 may be made of stainless steel, magnesium alloy, aluminum alloy, or the like. The metal frame 200 may be a side frame or a middle frame structure of the electronic device, and in the illustration of the embodiment, the electronic device further includes a housing 40, and the housing 40 may be a rear cover of the electronic device, that is, a battery cover. In some embodiments, the electronic device may not include a separate rear cover structure, but may be a rear cover structure in which the metal bezel 200 is an integral structure or a structure in which the rear cover and the middle frame are combined. Are not further illustrated and described in detail herein.

Optionally, in this embodiment, the metal frame 200, the housing 40 and the display screen module 20 cooperate to form an accommodating space 1000, and the battery module 30, the circuit board 100 and the like are disposed in the accommodating space 1000. The battery module 30 and the display screen module 20 are electrically connected to the circuit board 100, the battery module 30 is used for providing power, and the circuit board 100 is used for controlling the operating state of the display screen module 20. In addition, the electronic device may further include a camera and the like, and further details regarding this section are not listed and detailed herein.

Referring to fig. 3 to fig. 6, fig. 3 is a schematic partial structure diagram of the electronic device in the embodiment of fig. 1; FIG. 4 is a schematic diagram of an antenna assembly of the electronic device of the embodiment of FIG. 1, partially disassembled; 3 FIG. 3 5 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 of 3 the 3 structure 3 at 3 A 3- 3 A 3 in 3 FIG. 3 3 3; 3 Fig. 6 is an enlarged view of a part of the structure at B in fig. 4. The antenna assembly 10 in this embodiment includes a circuit board 100, a spring probe 300, and a metal bezel 200. The metal frame 200 further includes a main body portion 210 and a connecting portion 220, wherein one side of the main body portion 210 is provided with an appearance surface 211, and the other side of the main body portion is connected to the connecting portion 220. Alternatively, the main body 210 and the connecting portion 220 may be an integral structure, and the outer surface 211 serves as an outer surface of a side frame of the electronic device. The connection portion 220 extends toward the inside of the electronic apparatus. It should be noted that the terms "first", "second" and "third" in the present invention are used for descriptive purposes only 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," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In some embodiments, one end of the spring probe 300 is fixed to the circuit board 100 and electrically connected to the circuit board 100; the other end of the spring probe 300 elastically abuts against the connection portion 220 to electrically connect the metal frame 200 and the circuit board 100. Optionally, referring to fig. 5 and fig. 6, a conductive sheet 230 is disposed on a surface of the connection portion 220, and the conductive sheet 230 is used to enhance the conductive performance between the connection portion 220 and the spring probe 300. In some embodiments, the conductive sheet 230 is made of a material with good conductivity, such as a copper sheet or a silver sheet. The conductive sheet 230 may be soldered to the connection part 220.

With continued reference to fig. 4 to fig. 6, the antenna assembly 10 of the present embodiment further includes a fixing member 400, and the fixing member 400 is used for realizing a fixed connection between the spring probe 300 and the circuit board 100. The fixing member 400 may be made of plastic. The fixing member 400 may further have a pad (not shown) thereon, and the pad is soldered to the circuit board 100, and one end of the spring probe 300 is fixedly connected and electrically connected to the fixing member 400. It is also possible that the fixing member 400 only serves to fix the spring probe 300, and the spring probe 300 is directly electrically connected to the circuit board 100. The fixing member 400 may be fixedly connected to the circuit board 100 by dispensing, and in some embodiments, may be in a structural form that does not include the fixing member 400, the spring probe 300 is directly soldered on the circuit board 100 to simultaneously achieve electrical connection and fixed connection with the circuit board 100, and the existence of the fixing member 400 may enhance the connection reliability between the spring probe 300 and the circuit board 100. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Optionally, referring to fig. 7, fig. 7 is a schematic structural diagram of a fixing element and a spring probe, in which the fixing element 400 is provided with a step hole 410, and one end of the spring probe 300 is clamped in the step hole 410. Referring to fig. 5 to 7, in some embodiments, one end of the elastic retractable needle 310 of the spring probe 300 abuts against the conductive sheet 230, and the material of the elastic retractable needle 310 of the spring probe is the same as the material of the conductive sheet 230. Further, one end of the elastic retractable needle 310 of the spring probe 300 abuts against the conductive sheet 230, and the material hardness of the elastic retractable needle 310 of the spring probe 300 is the same as that of the conductive sheet 230. According to the technical scheme, the spring probe 300 with the single-end elastic structure is arranged between the circuit board 100 and the metal frame 200, so that the excellent conductivity is ensured, and the reliability is also ensured. More importantly, the relative movement between the circuit board 100 and the metal frame 200 can be absorbed by the spring probe 300, which is equivalent to a soft support, so that the relative pressure can be greatly reduced; meanwhile, the spring probe 300 can be made of copper, the hardness of the spring probe is equivalent to that of the copper foil of the metal frame 200, even if the spring probe has weak relative movement, the micro-corrosion of verification cannot be caused due to hardness difference, and the reliability of the connection can be ensured.

Additionally, in some embodiments, the metal bezel 200 may include multiple connections (not shown) to enable connection to multiple separate structural metal bezels or for enabling multi-point connection to the same metal bezel 200. The antenna assembly 10 includes a plurality of spring probes, the number of which is the same as that of the connecting portions, so that multipoint electrical conduction between the metal frame and the circuit board is realized, the connection reliability is further improved, and the signal receiving capability of the antenna is enhanced.

Referring to fig. 5, the antenna assembly 10 further includes a plastic part 500, wherein the plastic part 500 is integrally connected to the metal bezel 200 by injection molding, and forms a middle frame or a rear cover structure of an electronic device together with the metal bezel 200. In the illustrated embodiment of the present application, the plastic parts 500 are respectively disposed on two opposite sides of the metal frame 200, and other structures are also possible in other embodiments, which are not limited herein.

According to the electronic equipment and the antenna assembly thereof, the spring probe is utilized to realize the electrical connection between the circuit board and the metal frame, so that the connection reliability between the circuit board and the metal frame can be improved, and the electronic equipment and the antenna assembly thereof have the characteristics of good conductivity and high conductivity stability; in addition, through spring probe and metal frame elastic contact, can play the cushioning effect in the vibration, reduction friction that can be very big avoids the circumstances of fretting corrosion to take place.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 8, and fig. 8 is a schematic structural component diagram of a communication related module in an embodiment of the electronic device of the present application. The electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, etc., and the mobile phone is taken as an example in the figure of this embodiment. The structure of the electronic device 900 may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the display screen assembly 600 in the above-described embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; the power supply 990 is used to supply power to the entire electronic device 900.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 and a microphone (or microphone, or receiver assembly in the above embodiments) 962 are coupled to the processor 980 via audio circuitry 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the mobile electronic device. With regard to the related technical features of the receiver assembly, please refer to the related description of the above embodiments of the receiver assembly, and detailed description thereof will not be provided herein.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (11)

1. An antenna assembly, characterized in that the antenna assembly comprises a circuit board, a spring probe and a metal frame; the metal frame comprises a main body part and a connecting part, wherein one side of the main body part is provided with an appearance surface, and the other side of the main body part is connected with the connecting part; one end of the spring probe is fixedly arranged on the circuit board and is electrically conducted with the circuit board; the other end of the spring probe is elastically abutted to the connecting part so as to realize the electrical conduction of the metal frame and the circuit board.

2. The antenna assembly of claim 1, wherein a surface of the connection portion is provided with a conductive sheet for enhancing electrical conductivity between the connection portion and the spring probe.

3. The antenna assembly of claim 2, wherein the conductive sheet is a copper sheet.

4. The antenna assembly of claim 2, wherein the resilient retractable tip of the spring probe abuts the conductive strip at one end thereof, and the resilient retractable tip of the spring probe is made of the same material as the conductive strip.

5. The antenna assembly of claim 2, wherein the resilient retractable tip of the spring probe abuts the conductive strip at one end thereof, and wherein the resilient retractable tip of the spring probe has a material hardness equal to a material hardness of the conductive strip.

6. The antenna assembly of claim 1, further comprising a fixture for effecting a fixed connection between the spring probe and the circuit board.

7. The antenna assembly of claim 6, wherein the fixture has a stepped bore, and wherein the spring probe has an end that is captured within the stepped bore.

8. The antenna assembly of claim 1, wherein the metal bezel comprises a plurality of connection portions, and the antenna assembly comprises a plurality of spring probes corresponding to the connection portions in number, so as to achieve multi-point electrical communication between the metal bezel and the circuit board.

9. The antenna assembly of claim 1, wherein the metal bezel is made of stainless steel or an aluminum alloy.

10. The antenna assembly of claim 9, further comprising a plastic component integrally connected to the metal bezel by injection molding, wherein the plastic component and the metal bezel together form a middle frame or a rear cover structure of an electronic device.

11. An electronic device comprising a battery module, a display module, and the antenna assembly of any one of claims 1-10, wherein the display module and the battery module are each connected to a circuit board.

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