CN202679352U

CN202679352U - Wireless communication terminal equipment

Info

Publication number: CN202679352U
Application number: CN2012200274120U
Authority: CN
Inventors: 龚树强; 杜红娜
Original assignee: Huawei Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2012-01-20
Filing date: 2012-01-20
Publication date: 2013-01-16
Anticipated expiration: 2022-01-20

Abstract

The utility model discloses wireless communication terminal equipment, which belongs to the field of electronic technology application. The equipment comprises an outer shell, a circuit board, an electrical component and a connector, wherein the circuit board employs a PCB with a thickness greater than or equal to 1.4mm; the electrical component is fixedly arranged and is electrically connected to a printed circuit of the circuit board; one end of the circuit board is fixedly provided with the connector, a conductive contact of the connector is electrically connected with the electrical component arranged on the circuit board; and the circuit board and the electrical apparatus component arranged on the circuit board are positioned inside the outer shell, and the connector arranged on one end of the circuit board is positioned outside the outer shell. According to the terminal equipment, through employing the PCB with the thickness greater than or equal to 1.4mm, the circuit board is endowed with the function of resisting various external forces, the arrangement of reinforcement structures such as various reinforcing ribs, buckles, and inserting ribs inside the outer shell is not required, a strength demand of the wireless communication terminal equipment is satisfied, and the overall strength and reliability of the wireless communication terminal equipment are improved.

Description

Wireless communication terminal equipment

Technical Field

The utility model relates to an electronic application technical field especially relates to a miniaturized wireless communication terminal equipment.

Background

With the increasing maturity of electronic device technology and the increasing competition of electronic device market, the functional integration of wireless communication terminal devices such as wireless network cards, mobile phones and wireless gateways is improved, the circuit area is continuously reduced, and the volume of the wireless communication terminal devices is also continuously reduced. However, the wireless communication terminal device is required to be small in size and capable of bearing various external forces, and at present, a structural part is adopted as a main body of the wireless communication terminal device for bearing stress, and the wireless communication terminal device is also used for protecting an internal circuit and supporting the ID modeling. If a wireless network card device is taken as an example, the wireless network card device consists of a circuit board, an upper structural part shell and a lower structural part shell, wherein the thinner circuit board realizes electrical connection and is used as a functional device carrier, is arranged between the upper structural part shell and the lower structural part shell which are used as protection and stress parts, and is tightly connected in a buckling mode, a screw mode and the like; and the structural component epitheca, inferior valve are equipped with reinforcement structures such as various strengthening ribs, buckle, insertion bone for reinforcing structural component intensity, in order to guarantee under various exogenic actions, can not make thinner PCB board impaired, make wireless communication terminal equipment still can normally work.

However, the circuit board of the wireless communication terminal equipment is protected by the upper and lower shells of the structural member with various reinforcing structures inside, and the molding conditions of the engineering plastic materials such as PC, PC + ABS and the like used for preparing the upper and lower shells of the structural member and the reinforcing structures thereof require that the wall thickness of the plastic must be larger than a certain value (usually 0.6 mm), otherwise, the plastic part has the defects of shrinkage, glue shortage and the like, so that the pressure resistance of the whole wireless communication terminal equipment cannot be ensured, and the circuit board and the devices inside the wireless communication terminal equipment are easily damaged.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a wireless communication terminal equipment can solve present wireless communication terminal equipment if the thickness of not increasing the structure, can't improve complete machine intensity, can not guarantee its reliability, the problem of circuit board and device in the fragile it.

For solving the above problem the utility model provides a technical scheme as follows:

an embodiment of the present invention provides a wireless communication terminal device, which includes:

a housing, a circuit board, an electrical component and a connector; wherein,

the circuit board adopts a PCB with the maximum actual thickness being greater than or equal to 1.4 mm;

the electrical element is fixedly arranged and electrically connected on the printed circuit of the circuit board;

the connector is fixedly arranged at one end of the circuit board, the connector and the circuit board are of an integrated structure, and a conductive contact of the connector is electrically connected with the electrical element on the circuit board;

the circuit board and the electrical components thereon are arranged in the shell, and the joint arranged at one end of the circuit board is arranged outside the shell.

The utility model discloses among embodiment's the wireless communication terminal equipment, the circuit board is through adopting the PCB that the biggest actual thickness is greater than or equal to 1.4mm to circuit board itself plays and resists various exogenic actions, and needn't rely on set up various strengthening ribs, buckle, insert reinforcement structures such as bone in the shell, has not only satisfied wireless communication terminal equipment's intensity demand, improves wireless communication terminal equipment complete machine intensity and reliability.

Drawings

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

Fig. 1 is a schematic view of a wireless communication terminal device provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of a joint of a wireless communication terminal device and a circuit board according to embodiment 1 of the present invention;

fig. 3 is a schematic side view of a circuit board of a wireless communication terminal device according to embodiment 2 of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiments of the present invention are described in further detail below.

Example 1

This embodiment provides a wireless communication terminal device, which may be a wireless communication terminal device such as a wireless network card, a mobile phone, a wireless gateway, and as shown in fig. 1, the device includes: a housing, a circuit board 2, electrical components and connectors 4; the thickness of the circuit board 2 is greater than or equal to 1.4mm (the thickness can be the maximum actual thickness of the PCB, such as a circuit board with uniform thickness, or the actual thickness thereof, such as a circuit board with non-uniform thickness, or the actual thickness of the thickest part); the electrical components are fixedly arranged and electrically connected on the PCB of the circuit board 2 to form a circuit for realizing specific functions, such as a wireless network card circuit, a wireless gateway circuit, a mobile phone circuit and the like; one end of the circuit board is fixedly provided with a connector, the connector and the circuit board are of an integrated structure, and a conductive contact of the connector is electrically connected with an electrical element on the circuit board; the circuit board and the electrical components thereon are arranged in the shell, and the connector arranged at one end of the circuit board is arranged outside the shell.

The terminal equipment adopts an integrated structure through the thickened circuit board and the joint, so that the overall strength and reliability of the wireless communication terminal equipment can be effectively ensured, and the circuit board and devices on the circuit board are prevented from being damaged. And the technical prejudice that the circuit board and the device can not be damaged can be well overcome, and the technical prejudice that the circuit board needs to be thinned and the structural part needs to be as firm as possible to realize the pressure resistance of the wireless communication terminal to ensure the strength of the wireless communication terminal equipment is considered by the technical personnel in the field.

Further, in the wireless communication terminal device, the circuit board is formed by welding at least two PCBs into a PCB with a total thickness of 1.4mm or more, the circuit board 2 may be formed by laminating glass fiber reinforced epoxy resin, and the maximum actual thickness of the PCB is 1.4mm or more, the PCB is formed by laminating glass fiber reinforced epoxy resin between 2 layers of copper foil and copper foil, specifically, the PCB may be formed by laminating 4 layers of copper foil and 3 layers of glass fiber reinforced epoxy resin, and other laminated structures can achieve the same purpose as long as the number of layers of copper foil is more than 2 and the total thickness meets the requirement.

Further, the circuit board in the above-mentioned wireless communication terminal device serves as a main circuit board on which the respective circuit elements are provided. The electrical connections on the circuit board include circuit elements and connecting circuits that implement the main circuit functions of the device, including but not limited to baseband chips, radio frequency chips, power chips, radio frequency antennas, and the like.

Further, in the wireless communication terminal device, the connector 4 fixedly arranged at one end of the circuit board and integrated with the circuit board 2 can be made of a PCB with a thickness of 1.4mm or more; the connector can be integrally formed with a circuit board, a connector is formed at one end of the circuit board, and the conductive contact on the connector is formed by a printed circuit on the circuit board. The connector can be a USB connector, and can also be other connectors which are convenient to be connected with external equipment to exchange data.

Further, in the above wireless communication terminal device, the housing includes an upper housing 1 and a lower housing 3, wherein the upper housing 1 and the lower housing 3 are substantially identical in structure and are each composed of a bottom plate (which simplifies various reinforcing structures such as reinforcing ribs, buckles, and insertion ribs to the maximum extent) of a plate structure and an edge provided around the bottom plate, the upper housing 1 and the lower housing 3 are relatively fastened, that is, the edge portions of the upper housing 1 and the lower housing 3 are relatively fastened and clamped, and a space for accommodating the circuit board is formed between the fastened upper housing and the fastened lower housing.

Furthermore, the thickness of the shell of the upper and lower shells can be made into the minimum thickness allowed by the molding of the material according to the molding requirement of the adopted material (for example, the thickness of the shell of the upper and lower shells can reach 0.6mm by adopting engineering plastic materials such as PC, PC + ABS and the like). The shell structure of the structure is simplified to the maximum extent, the original structural design for reinforcing the shell is reduced, the shell is only wear-resistant and is made of thin materials, and therefore the overall size of the terminal equipment can be effectively reduced.

Further, the wireless communication terminal device may further include: the middle frame 5 for fixing the circuit board in the shell is provided with a groove matched with the shape of the circuit board 2, the middle frame 5 is buckled on the circuit board 2 through the groove on the middle frame and is arranged in the shell together with the circuit board 2, so that the circuit board 2 is kept in a tight fixing position in the shell. The middle frame 5 can be fixedly connected with the buckled circuit through screws. Because the middle frame is not needed to be used as a reinforcing structure, the thickness of the middle frame body can be made into the minimum thickness allowed by the molding of the material according to the molding requirement of the adopted material (for example, the thickness of the middle frame body can reach 0.6mm by adopting engineering plastic materials such as PC, PC + ABS and the like). Thereby also reducing the size of the terminal device.

Furthermore, the wireless communication terminal equipment can be further provided with a joint reinforcing steel sheet, a groove matched with the joint is formed in the joint reinforcing steel sheet, the joint reinforcing steel sheet is sleeved on one side face of the joint through the groove in the joint, the joint can be sleeved on the side face without the conductive contact, and the bottom end of the joint reinforcing steel sheet is fixed in the shell, so that the joint can be reinforced through the joint reinforcing steel sheet, and the joint strength is further guaranteed.

Above-mentioned wireless communication terminal equipment, through thickening the circuit board and make circuit board and joint integration, when having solved complete machine crushing resistance and reliability, can adopt the little volume shell that does not need additional strengthening, fine solution in present wireless communication terminal equipment guarantee its complete machine crushing resistance through set up additional strengthening on the shell for the shell volume is great, thereby it is great to lead to present wireless communication terminal equipment volume, can't reach more miniaturized problem.

The wireless communication terminal is further described below by taking a wireless network card as an example:

the exploded view of the wireless network card is basically the same as that of figure 1, and specifically comprises a circuit board, an upper shell, a middle frame and a lower shell, wherein the middle frame + the upper shell are equal to the upper shell of the existing wireless network card shell structure, the main body of the circuit board 3 adopts a reinforced PCB, the thickness of the PCB is selected according to the requirements of bending resistance and twisting resistance of specification requirements, and the PCB is ensured to have the functions of twisting resistance and bending resistance. In the wireless network card, a circuit board 3 adopts a PCB with the thickness of 1.8mm and consists of 4 layers of copper foils and 3 layers of glass fiber reinforced epoxy resin, and through actual measurement, under the condition of no help of an external structural component, the bending and twisting performance of the circuit board in a naked PCB state greatly surpasses the structural performance of a conventional wireless communication terminal, and the wireless network card is completely qualified for the requirements of bending resistance and twisting resistance; the structural parts of the upper shell and the lower shell only need to bear the functions of extrusion resistance, impact resistance and abrasion resistance, so the structural parts are designed only according to the modeling requirement and the processing technology requirement, and the size of the structural parts is ensured to be minimum; the circuit board 3 and the structural member are combined to share the anti-shearing function.

Meanwhile, the wireless network card adopts a structure that the USB connector and the circuit board are integrated, and the USB connector (which can be a USB male connector) directly forms a whole with the circuit board, which is different from the traditional wireless network card adopting a mode that a conventional USB interface device is welded on a PCB. When the whole machine is subjected to bending test, all stress of the USB connector in the structure form can be dispersed on a circuit board (namely a PCB), and bending force borne by the USB connector of the traditional wireless communication terminal equipment and stress borne by a PCB pad can be borne by a PCB base material. The stress distribution of the circuit board is tested by bending the whole machine by 20N, the stress of the USB connector part of the wireless network card is obtained to be uniformly distributed on the USB connector part at one end of the circuit board, no region and point with over concentrated stress is generated, and the maximum stress value is smaller than that of the prior art by more than 50% because the PCB adopted by the circuit board has high strength and small deformation. Meanwhile, because the traditional USB connector device is not provided, the welding pad for fixing and connecting the USB connector device is not provided, and the possibility that the welding pad is bent, deformed and torn off when the USB connector device is used is thoroughly eliminated. In the traditional wireless network card, the plastic part of the USB connector and the PCB forming the circuit board are not integrated, so that the stress can be borne only by the metal shell of the USB connector, the signal pins and the welding pads of the PCB, and the stress is concentrated on the metal shell of the USB connector and the welding pads of the PCB. And (4) testing the stress distribution of the circuit board by bending the whole machine 20N to obtain that all the stress is concentrated on the metal shell and the bonding pad of the USB joint.

The wireless network card of above-mentioned structure, because the function of anti buckling, antitorque distortion has been undertaken by the circuit board, the structure only needs to realize possessing anti extrusion, shock resistance, wear-resistant function, and needn't rely on various buckle buckles, inserts reinforcement structures such as bone and strengthening rib and increase structure intensity for structure (epitheca, inferior valve and center etc.) furthest simplifies the design, reduces the volume, and then die design also can simplify by the at utmost, and processing complexity and the degree of difficulty can reduce, and the product yield improves.

Comparing the wireless network card of the embodiment with the traditional wireless network card by adopting a 20N bending test, the wireless network card of the embodiment has basically consistent deformation under the action of 20N no matter whether the wireless network card is assisted by a structural member or not, which shows that the circuit board of the embodiment can bear the bending stress of the whole machine, and the structural member does not need to consider bearing the bending stress of the whole machine at all; under the two conditions that a structural part is present or absent, the deformation difference of the USB interface part of the traditional wireless network card is very large in a 20N bending test, if the circuit board is not provided with the auxiliary part of the structural part, the maximum deformation of the circuit board can reach 14mm under the action of bending stress of the whole machine, and the risk of fracture and failure of the PCB and the USB connector is very large; with the help of the structural member, the circuit board of the traditional wireless network card can bear the bending stress of the whole machine; it can be seen that the wireless communication terminal device of the embodiment can ensure strength only by means of the enhanced circuit board compared with the traditional wireless network card.

Example 2

The embodiment provides a wireless communication terminal device, which can be a wireless internet card, a mobile phone, a wireless gateway, and other wireless communication terminal devices, and has a structure substantially the same as that of the wireless communication terminal device provided in embodiment 1, except that the circuit board 2 of the wireless communication terminal device is formed by combining at least 2

circuit boards

21 and 22 with common thickness through SMT soldering to form a circuit board (see fig. 3) with a thickness meeting the requirement (the maximum actual thickness is greater than or equal to 1.4 mm), instead of using a single high-strength circuit board with a thickness meeting the requirement. The circuit board with the structure can ensure the integral strength of the circuit board without using structural parts (an upper shell and a lower shell), not only can effectively reduce the volume of the whole machine, but also can reduce the complexity of the production process and improve the yield.

To sum up, the wireless communication terminal device according to the embodiment of the present invention adopts the circuit board with the maximum actual thickness greater than or equal to 1.4mm, and makes the circuit board and the connector be an integrated structure, so that the overall strength of the wireless communication terminal device can be ensured without using the upper and lower shells; and then can cancel or simplify strengthening rib, buckle, the inserted bone on the structure, reduced the shell structure volume, reduced wireless communication terminal equipment's whole volume. The connector and the circuit board are integrated, so that the deformation of the connector and the circuit board under the action of external force is reduced, the device is protected, and the reliability of the whole machine is improved; the problem that the existing similar wireless communication terminal equipment circuit board is poor in strength and easy to deform under the action of external force, so that components are damaged is solved; the interface device is difficult to protect and easy to deform and damage the circuit board under the action of external force; the size of the wireless communication terminal structural part is limited by the limitations of material strength, processing technology, wireless radio frequency and the like, and the wireless communication terminal structural part cannot be continuously reduced.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A wireless communication terminal device, characterized in that the device comprises:

a housing, a circuit board, an electrical component and a connector; wherein,

the circuit board is a PCB with the thickness of more than or equal to 1.4 mm;

2. The wireless communication terminal device of claim 1, wherein the PCB is made of glass fiber reinforced epoxy.

3. The wireless communication terminal device of claim 1, wherein the PCB is formed by laminating more than 2 layers of copper foils and glass fiber reinforced epoxy resin arranged between the copper foils.

4. A wireless communication terminal according to any of claims 1-3, characterized in that the circuit board is soldered from at least two PCBs to a PCB having a total thickness of 1.4mm or more.

5. A wireless communication terminal device according to any of claims 1 to 3, characterized in that the joint is made of a PCB with a thickness greater than or equal to 1.4 mm.

6. A wireless communication terminal device according to any one of claims 1 to 3, wherein the housing comprises an upper case and a lower case; the upper shell and the lower shell are both formed by a bottom plate of a plate structure and edges arranged around the bottom plate, the upper shell and the lower shell are oppositely buckled, and a space for accommodating the circuit board is formed between the buckled upper shell and the buckled lower shell.

7. A wireless communication terminal device according to any one of claims 1 to 3, wherein the device further comprises:

the middle frame is provided with a groove matched with the circuit board in shape, is buckled on the circuit board and is arranged in the shell together with the circuit board.

8. A wireless communication terminal device according to any one of claims 1 to 3, wherein the device further comprises: the joint reinforcing steel sheet is provided with a groove matched with the joint and sleeved on one side face of the joint, and the bottom end of the joint reinforcing steel sheet is fixed in the shell.