CN108521025B

CN108521025B - Shell device, connecting structure and terminal equipment

Info

Publication number: CN108521025B
Application number: CN201810457985.9A
Authority: CN
Inventors: 左州全; 辜国栋
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2016-07-19
Filing date: 2016-07-19
Publication date: 2020-07-03
Anticipated expiration: 2036-07-19
Also published as: CN108521025A; CN106058522A; CN106058522B

Abstract

The invention provides a shell device which comprises a shell and a connecting structure. The housing includes an electrical connection region. The connecting structure comprises a cylindrical spring, a first spring clamping piece and a second spring clamping piece, wherein the second spring clamping piece is provided with a plurality of protruding parts. The cylindrical spring is fixed on a PCB board through the first spring clamping piece, and the cylindrical spring is electrically connected with the shell through a plurality of protruding parts of the second spring clamping piece. The invention also provides a connecting structure and terminal equipment. According to the shell device, the connecting structure and the terminal equipment, the abrasion of the inner surface of the shell can be effectively avoided.

Description

Shell device, connecting structure and terminal equipment

Technical Field

The present invention relates to a terminal device, and more particularly, to a housing device, a connection structure, and a terminal device.

Background

At present, metal shells are more and more popular with consumers due to the advantages of high quality, durability and the like, and more terminal devices such as mobile phones and the like adopt metal shells. In order to meet some functional requirements or maintain the performance of the terminal device, a metal dome is usually disposed between a Printed Circuit Board (PCB) board and a housing inside the terminal device.

For example, in order to solve the problem that the metal case greatly attenuates or shields signals of an antenna in the terminal device, a first end of the metal dome is fixed on a PCB (Printed circuit board) board inside the terminal device and electrically connected to the antenna mounted on the PCB board, and a second end of the metal dome is in abutting electrical contact with an inner surface of the metal case. In the connection mode through the metal elastic sheet, when the terminal equipment vibrates due to external force, the second end of the metal elastic sheet and the inner surface of the metal shell move relatively to generate friction. When the number of times of rubbing is large, the metal material (e.g., aluminum alloy material) on the inner surface of the metal shell is abraded to oxidize the metal material to generate oxide, which affects the reliability of the contact between the metal dome and the inner surface of the metal shell, and the performance of the terminal device, such as the antenna performance, is affected due to poor contact.

Disclosure of Invention

In view of this, the present invention provides a housing device, a connection structure and a terminal device, which can effectively avoid the abrasion of the inner surface of the housing.

The invention provides a shell device which comprises a shell and a connecting structure. The connecting structure comprises a cylindrical spring, a first spring clamping piece and a second spring clamping piece, wherein the second spring clamping piece is provided with a plurality of convex parts; the cylindrical spring is fixed on a PCB board through the first spring clamping piece, and the cylindrical spring is electrically connected with the shell through a plurality of protruding parts of the second spring clamping piece, wherein the diameter of a spring coil of the cylindrical spring is equal from one end to the other end.

The invention also provides a connecting structure for connecting the PCB of the terminal equipment and the shell, which is characterized by comprising a cylindrical spring, a first spring clamping piece and a second spring clamping piece, wherein the second spring clamping piece is provided with a plurality of convex parts, the cylindrical spring is used for being fixed on the PCB through the first spring clamping piece, the cylindrical spring is fixedly connected with the second spring clamping piece and is used for being electrically connected with the shell through the plurality of convex parts of the second spring clamping piece, and the diameters of spring coils of the cylindrical spring are equal from one end to the other end.

The terminal equipment comprises the PCB and the shell device, and the shell device comprises a shell and a connecting structure. The connecting structure comprises a cylindrical spring, a first spring clamping piece and a second spring clamping piece, wherein the second spring clamping piece is provided with a plurality of convex parts; the cylindrical spring is fixed on a PCB board through the first spring clamping piece, and the cylindrical spring is electrically connected with the shell through a plurality of protruding parts of the second spring clamping piece, wherein the diameter of a spring coil of the cylindrical spring is equal from one end to the other end.

The invention is connected between the PCB and the shell through the cylindrical spring, and can effectively avoid the abrasion of the inner surface of the shell.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, 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 a housing arrangement in a first embodiment of the invention.

Fig. 2 is a schematic plan view of a housing in an embodiment of the invention.

Fig. 3 is an exploded and assembled view of the connection structure in an embodiment of the invention.

Fig. 4 is an inverted schematic view of a second spring clip in the connection configuration in an embodiment of the invention.

Fig. 5 is a schematic view of a housing arrangement in a second embodiment of the invention.

Fig. 6 is a block diagram of an antenna module in the housing device according to an embodiment of the invention.

Fig. 7 is a block diagram of a terminal device in an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic view of a housing device 100 according to a first embodiment of the present invention. The housing arrangement 100 includes a housing 20 and a connecting structure 30. The connecting structure 30 includes a cylindrical spring T1, a first spring card K1 and a second spring card K2 having a plurality of protrusions E1. The cylindrical spring T1 is fixed on a PCB (Printed circuit board) board 40 by the first spring card K1, and the cylindrical spring T1 is fixedly connected with the second spring card K2 and electrically connected with the housing 201 by a plurality of protrusions E1 of the second spring card K2. Wherein the coil diameters of the cylindrical spring T1 are equal from one end to the other.

The housing 20 includes an electrical connection region 21 as shown in fig. 2, the housing device 100 further includes a functional element 101 mounted on the PCB 40, and the cylindrical spring 30 is fixed on the PCB 40 by the first spring card K1 and electrically connected to the functional element 101 mounted on the PCB 40, and is electrically connected to the electrical connection region 21 of the housing 20 by the protrusions E1 of the second spring card K2.

In an embodiment, the functional element 101 is an antenna module 10, the cylindrical spring T1 is fixed on the PCB 40 by the first spring clip K1 and then electrically connected to the antenna module 10 mounted on the PCB 40, and the second spring clip K2 is electrically connected to the electrical connection area 21 of the housing 20, so as to establish electrical connection between the antenna module 10 and the electrical connection area 21 of the housing 20, and the electrical connection area 21 of the housing 20 is used as a radiator of the antenna module 10. The electrical connection region 21 of the housing 20 may be the entire housing 20 or a partial region of the housing 20. When the electrical connection region 21 is a partial region of the housing 20, it may be located at the middle position and the two side positions of the housing 20, and the shape may be square, circular, triangular, and the like.

The PCB 40 may be an antenna circuit board for mounting and carrying the antenna module 10. The PCB 40 may also be a main board of a terminal device, and in addition to the antenna module 10, other functional elements, such as a processor, a memory, etc., are installed. In some embodiments, the PCB board 40 may also be a part of the antenna module 10. In other embodiments, the spring T1 is fixed on the PCB 40 and electrically connected to other functional elements mounted on the PCB 40 and electrically connected to the electrical connection region 21 of the housing 20. For example, the electrical connection region 21 of the case 20 is connected to the ground of a power circuit or the like mounted on the PCB 40, and the electrical connection region 21 of the case 20 is used as a common ground, or connected to a memory, a processor, a display chip or the like mounted on the PCB 40, and the electrical connection region 21 of the case 20 is used as a static electricity discharge ground. The functional device 101 is taken as the antenna module 10 for the following description.

Specifically, in one embodiment, the cylindrical spring T1 includes a first end 31 and a second end 32, the first end 31 is fixed to the PCB 40 and electrically connected to the antenna module 10 through a first spring clip K1, and the second end 32 is electrically connected to the inner surface of the electrical connection region 21 of the housing 20 through a second spring clip K2. In one embodiment, the second spring tab K2 abuts against the inner surface of the electrical connection region 21 of the housing 20 to make electrical connection. The first end 31 and the second end 32 are two ends of the cylindrical spring T1. The cylindrical spring T1 is a helical cylindrical spring, and the coil diameters of the cylindrical spring T1 are substantially equal from the first end 31 to the second end 32. Specifically, the cylindrical spring T1 is composed of a plurality of elastic coils extending spirally, and the first end 31 and the second end 32 of the cylindrical spring T1 each include a horizontal section and an inclined section extending obliquely upward from the horizontal section to form an unclosed coil.

The PCB 40 is substantially parallel to the inner surface of the housing 20, and the extension and retraction direction of the cylindrical spring T1 is substantially along the arrangement direction of the first end 31 and the second end 32, i.e. the direction perpendicular to the PCB 40 or the inner surface of the housing 20.

Therefore, when the housing 20 is subjected to an external force and acts on the PCB 40, the cylindrical spring T1 and the second spring tab K2 may follow the housing 20 to move together when the housing 20 slightly moves relative to the PCB 40 due to the fact that the cylindrical spring T1 can be extended and retracted and can also be twisted in other directions different from the extending and retracting directions, and the contact position between the second end 32 of the cylindrical spring T1 and the second spring tab K2 and the housing 20 is kept unchanged. Therefore, the connecting structure 30 is prevented from rubbing against the housing 20, and poor contact caused by abrasion of the inner surface of the housing 20 is not caused.

Please refer to fig. 3, which is an exploded and assembled view of the connecting structure 30. The first spring card K1 includes a bottom panel D1, the bottom panel D1 includes a first face F1 (shown in fig. 1) and a second face F2 that are opposite. The first face F1 of the bottom plate D1 is opposite to the PCB 40 and fixed on the PCB 40. The first end 31 of the spring T1 is secured to the second face F2 of the base plate D1.

Furthermore, a plurality of bent portions C1 extend from the side B1 of the bottom plate D1, and the bent portions are engaged with the spring T1. Specifically, the side B1 of the first spring card K1 has a bent portion C1 extending away from the PCB 40. The bent portion C1 may be an inverted L-shape. Each bent portion C1 of the inverted L shape and the second face F2 together form a first receiving slot S1. The plurality of bent portions C1 may be connected to each other, or may be disposed at intervals as shown in fig. 3, that is, the side walls of the plurality of bent portions C1 are connected to each other or spaced from each other. Accordingly, the plurality of first receiving grooves S1 may be separated and connected to each other.

The coils of the first end 31 of the cylindrical spring T1 are received in the receiving slot S1, thereby securing the cylindrical spring T1 to the first spring card K1 and, in turn, to the PCB board 40.

As shown in fig. 3, the three sides B1 of the first spring card K1 each extend with a bending portion C1 in a direction away from the PCB 40, and the other side B1 is open, so that the first end 31 of the cylindrical spring T1 can slide into the first receiving slots S1 of the first spring card K1 from the side B1 of the opening. The first end 31 of the cylindrical spring T1 is fixed to the PCB board 40 by a first spring card K1 and then electrically contacts the antenna module 10.

A first stop N1 is further disposed at the outer edge of the side B1 of the opening, preferably, the first stop N1 is made of an elastic material, and when the device is installed, the first end 31 of the cylindrical spring T1 slides in from the side B1 of the opening until the inner side of the first stop N1 abuts against the outer edge of the first end 31 of the cylindrical spring T1. During installation, the first stopper N1 is compressed, and after the cylindrical spring T1 is inserted, the first stopper N1 is sprung to cooperate with the first receiving grooves S1 to fix the first end 31 of the cylindrical spring T1 to the bottom plate D1 of the first spring card K1. Obviously, in some embodiments, the first stopper N1 may not be made of elastic material, but rather, it slides along the side B1 of the opening by the elasticity of the first end 31 of the cylindrical spring T1 in the diameter direction of the coil. When the inner side of the first stopper N1 abuts against the outer edge of the first end 31, the coils of the first end 31 return to the original shape and abut against the side walls of the first stopper N1 and the plurality of receiving slots S1, so that the first stopper N1 cooperates with the plurality of receiving slots S1 to fix the cylindrical spring T1 to the bottom plate D1 of the first spring card K1. The first end 31 of the cylindrical spring T1 is fixed to the PCB board 40 by a first spring card K1 and then electrically contacts the antenna module 10.

Referring also to fig. 4, fig. 3 is a schematic view of the second spring card K2 from an upside down view. The second spring card K2 includes a bottom plate D2, the bottom plate D2 includes a third face F3 and a fourth face F4 opposite to each other, the plurality of protrusions E1 are disposed on the third face F3 and electrically connected to the inner surface of the electrical connection region 21 of the housing 20, and the second end 32 of the spring T1 is fixed to the fourth face F4. In one embodiment, the protrusions E1 of the second spring card K2 abut against the inner surface of the electrical connection region 21 of the housing 20 and are electrically connected, so that the second end 32 is electrically connected to the electrical connection region 21 of the housing 20 through the protrusions E1 of the second spring card K2. As shown in fig. 4, the number of the plurality of protrusions E1 is 3, and obviously, the number of the protrusions E1 may be any suitable value, such as 2, four, etc.

Similarly, a plurality of bent portions C2 extend from the side B1 of the bottom panel D2, and the bent portions C2 are configured to engage with the second end 32 of the cylindrical spring T1. Specifically, the side B2 of the second spring card K2 has a bent portion C2 extending away from the housing 20. The bent portion C2 may be an inverted L-shape. Each inverted L-shaped bent portion C2 and the fourth surface F4 together form a second receiving cavity S2. The plurality of bent portions C2 may be connected to each other, or may be disposed at intervals as shown in fig. 4, that is, the side walls of the plurality of bent portions C2 are connected to each other or spaced from each other. Accordingly, the plurality of second receiving grooves S2 may be separated and connected to each other.

As shown in fig. 4, the three sides B2 of the second spring card K2 each extend with a bending portion C2 in a direction away from the housing 20, and the other side B2 is open, so that the second end 32 of the cylindrical spring T1 can slide into the second receiving slots S2 of the second spring card K2 from the side B2 of the opening, and is fixed to the second spring card K2. The second end 32 of the cylindrical spring T1 is fixed to the second spring tab K2, and then electrically contacts the electrical connection region 21 of the housing 20 through the second spring tab K2 and the protrusion E1 thereof. Wherein the second spring card K2 is made of metal material, and the cylindrical spring T1 is electrically contacted with the electrical connection region 21 of the housing 20 through the spring card K2 and the protruding portion E1 thereof.

A second stopper N2 is further disposed at the outer edge of the side B2 of the opening of the second spring card K2, preferably, the second stopper N2 is made of an elastic material, and when the spring card K2 is installed, the second end 32 of the second spring T1 slides in from the side B2 of the opening until the inner side of the second stopper N2 abuts against the outer edge of the second end 32 of the cylindrical spring T1. During installation, the second stopper N2 is compressed, and after the cylindrical spring T1 is inserted, the second stopper N2 is sprung to cooperate with the second receiving grooves S2 to fix the second end 32 of the cylindrical spring T1 to the bottom plate D2 of the second spring card K2. Likewise, in some embodiments, the second stopper N2 may not be elastic, but rather may slide along the side B2 at the opening by virtue of the diametrical elasticity of the coils at the second end 32 of the cylindrical spring T1. When the inner side of the second stopper N2 abuts against the outer edge of the first end 31, the coil of the second end 31 recovers its shape and abuts against the side walls of the second stopper N2 and the second receiving grooves S2, so that the second stopper N2 cooperates with the second receiving grooves S2 to fix the cylindrical spring T1 to the bottom plate D2 of the second spring clip K2.

The projections E1 are convex cylinders or convex hemispheres projecting from the third surface F3 in the direction of the housing 20.

The cylindrical spring T1 is made of a metal material. In some embodiments, the surface of the cylindrical spring T1 is also plated with gold, nickel, or the like.

The case 20 is a metal case, for example, a case made of an aluminum alloy material, the case 20 is a rear case (a rear cover of the battery), and the second spring card K2 is abutted against and electrically connected to an inner surface of the case 20.

In one embodiment, the first spring card K1 is fixed to the PCB board 40 by soldering, that is, the first surface of the first spring card K1 is fixed to the PCB board 40 by soldering.

Fig. 5 is a schematic view of a housing device 200 according to another embodiment. The structure of the housing device 200 is substantially the same as the housing device 100 shown in fig. 1, and the structure of the housing device 200 is different from the housing device 100 shown in fig. 1 in that: in another embodiment, the first spring card K1 and the PCB board 40 may be integrally formed, and the second spring card K2 and the protrusion E1 included therein and the housing 20 may also be integrally formed. That is, the first spring card K1 is integrally formed with the PCB board 40, and/or the second spring card K2 and the protrusion E1 included therein are integrally formed with the housing 20.

Referring to fig. 6, the antenna module 10 includes a radio frequency transceiver circuit 11 and a matching circuit 12. The matching circuit 12 is electrically connected between the rf transceiver circuit 11 and the connecting structure 30, and is electrically connected to the housing 20 through the connecting structure 30.

The radio frequency transceiver circuit 11 is configured to receive or transmit an antenna signal in a specific frequency band. The matching circuit 12 performs impedance matching and balanced matching between the rf transceiver circuit 101 and the housing 20, so as to maintain the normal operation of the antenna module 10. The matching circuit 12 transmits the antenna signal transmitted by the radio frequency transceiver circuit 11 to the housing 20 through the connection structure 30, and radiates the antenna signal through the housing 20 as a radiator.

The radio frequency transceiver circuit 11 is one of a GSM (global system for mobile communications) antenna radio frequency transceiver circuit, a CDMA (code division multiple access) antenna radio frequency transceiver circuit, a bluetooth antenna radio frequency transceiver circuit, a WIFI antenna radio frequency transceiver circuit, and an NFC (Near field communication) antenna radio frequency transceiver circuit.

In some embodiments, the antenna module 10 may further include the PCB 40, a slot may be formed on the PCB 40, the rf transceiver circuit 11 is coupled to the slot on the PCB 40 through the matching circuit 12 to form a slot antenna, and the housing 20 is electrically connected to the housing 20 through the connecting structure 30/the cylindrical spring T1 as described above to serve as a radiator of the slot antenna.

Referring to fig. 7, which is a block diagram of a terminal device 1 according to an embodiment of the present invention, the terminal device 1 includes the housing apparatus 100 or the housing apparatus 200 and the PCB 40. Obviously, the terminal device 1 may further include other elements such as a processor, a memory, a display screen, etc., which are not shown in the figures and are not described herein since they are not relevant to the improvement of the present invention.

As mentioned above, the PCB 40 may be an antenna circuit board for mounting and carrying the antenna module 10 in the

housing device

100, 200. The PCB 40 may also be a main board of the terminal device 1, and in addition to the antenna module 10, other functional elements, such as a processor, a memory, and the like, are also installed.

The terminal device 1 may be a mobile phone, a tablet computer, a personal digital assistant PDA, a sales terminal POS, or a vehicle-mounted computer, etc.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. A housing arrangement, characterized in that the housing arrangement comprises:

a housing including an electrical connection region; and

a connecting structure;

the connecting structure comprises a cylindrical spring, a first spring clamping piece and a second spring clamping piece, wherein the second spring clamping piece is provided with a plurality of convex parts; the cylindrical spring is fixed on a PCB through the first spring clamping piece and is electrically connected with the electric connection area of the shell through a plurality of convex parts of the second spring clamping piece, wherein the diameters of spring coils of the cylindrical spring are equal from one end to the other end;

the shell device further comprises an antenna module arranged on the PCB, and the cylindrical spring is fixed on the PCB through the first spring clamping piece and then is electrically connected with the antenna module arranged on the PCB so as to enable the electric connection area of the shell to be used as a radiating body of the antenna module; the antenna module comprises a radio frequency transceiving circuit and a matching circuit; the matching circuit is electrically connected between the radio frequency transceiver circuit and the connecting structure and is electrically connected with the shell through the connecting structure, the radio frequency transceiver circuit is coupled with a gap on the PCB through the matching circuit to form a slot antenna, and the electrical connection area of the shell is used as a radiator of the slot antenna through the electrical connection of the connecting structure and the electrical connection area of the shell.

2. The housing arrangement of claim 1, wherein the cylindrical spring includes a first end and a second end, the first end being secured to the PCB board by a first spring clip and electrically connected to the antenna module, the second end being electrically connected to an inner surface of the electrical connection area of the housing by a plurality of protrusions of a second spring clip.

3. The housing arrangement of claim 2 wherein the first spring tab includes a first base plate, the first base plate including a first face and a second face opposite the first face, the first face of the first base plate facing and being secured to the PCB, the first end of the cylindrical spring being secured to the second face of the first base plate.

4. The housing apparatus according to claim 3, wherein the first spring card has a plurality of inverted L-shaped bent portions extending from the side of the first base plate, the inverted L-shaped bent portions and the second surface together forming a first receiving slot, the first end of the cylindrical spring being received in the first receiving slot to secure the cylindrical spring to the first spring card and further to the PCB.

5. The housing device according to claim 4, wherein the first spring locking piece has a first bent portion extending in an inverted L shape from three sides thereof toward a direction away from the PCB, and an opening at the other side thereof, and the first end of the cylindrical spring slides into the first receiving slots of the first spring locking piece.

6. The housing arrangement of claim 5, wherein a first stop is disposed at an outer edge of the side of the opening, the first end of the cylindrical spring slides in from the side of the opening until an inner side of the first stop abuts against the outer edge of the first end of the cylindrical spring, and the first stop cooperates with the first receiving slots to secure the cylindrical spring to the first bottom plate of the first spring clip.

7. The housing arrangement of claim 2 wherein the second spring clip includes a second base plate, the second base plate including opposing third and fourth faces, the plurality of projections being disposed on the third face and in electrical contact with the electrical connection area of the housing, the second end of the spring being secured to the fourth face of the second base plate.

8. The housing device according to claim 7, wherein the second spring clip has a plurality of second bent portions extending from the side of the second bottom plate, each of the second bent portions and the fourth surface forming a second receiving slot, and the second end of the cylindrical spring is received in the second receiving slot.

9. The housing arrangement of claim 8 wherein the second spring tab has a second bent portion extending in an inverted L shape on three sides away from the housing, the other side being open, and the second end of the cylindrical spring T1 sliding into the second receiving slots of the second spring tab.

10. The housing arrangement of claim 9 wherein a second stop is disposed at an outer edge of the side of the opening, the second end of the cylindrical spring slides in from the side of the opening until an inner side of the second stop abuts against the outer edge of the second end of the cylindrical spring, and the second stop cooperates with the second plurality of receiving slots to secure the cylindrical spring to the second base plate of the second spring clip.

11. The housing arrangement of claim 1 wherein the plurality of protrusions are a plurality of convex cylinders or convex hemispheres protruding from the third face in a direction toward the housing.

12. The housing arrangement of any one of claims 1-11, wherein the first spring tabs are secured to the PCB by a solder connection and the second spring tabs are resiliently urged against the housing.

13. The housing arrangement according to any of claims 1-11, wherein the first spring catch is integrally formed with the PCB board and/or the second spring catch is integrally formed with the housing.

14. A connecting structure is used for connecting a PCB (printed Circuit Board) of a terminal device and a shell and is characterized by comprising a cylindrical spring, a first spring clamping piece and a second spring clamping piece, wherein the second spring clamping piece is provided with a plurality of protruding parts, the cylindrical spring is used for being fixed on the PCB through the first spring clamping piece and electrically connected with an antenna module arranged on the PCB, the cylindrical spring is fixedly connected with the second spring clamping piece and electrically connected with an electric connection area of the shell through the plurality of protruding parts of the second spring clamping piece so as to take the electric connection area of the shell as a radiating body of an antenna module, the diameter of a spring coil of the cylindrical spring is equal from one end to the other end, and the antenna module comprises a radio frequency transceiving circuit and a matching circuit; the matching circuit is electrically connected between the radio frequency transceiver circuit and the connecting structure, the connecting structure is used for electrically connecting the matching circuit to the shell, the radio frequency transceiver circuit is coupled with a slot on the PCB through the matching circuit to form a slot antenna, and the electrical connection area of the shell is used as a radiator of the slot antenna through the electrical connection of the connecting structure and the electrical connection area of the shell.

15. The connecting structure of claim 14, wherein the cylindrical spring comprises a first end and a second end, the first end is fixed to the PCB board and electrically connected to the antenna module through a first spring clip, and the second end is electrically connected to the inner surface of the housing through a second spring clip.

16. The connecting structure according to claim 15, wherein the first spring clip includes a first base plate, the first base plate includes a first surface and a second surface opposite to the first surface, the first surface is fixed on the PCB, a plurality of side edges of the second surface of the first spring clip extend with first inverted-L-shaped bending portions in a direction away from the PCB, each inverted-L-shaped bending portion and the second surface form a first receiving slot, and the first end of the cylindrical spring is received in the first receiving slots to fix the cylindrical spring on the first spring clip and further fix the cylindrical spring on the PCB.

17. The connecting structure according to claim 16, wherein the spring clip has three sides each extending with a first bent portion in an inverted L shape in a direction away from the PCB, and the other side is open, and the first end of the cylindrical spring slides into the first receiving grooves of the spring clip.

18. The connecting structure according to claim 15, wherein the second spring clip includes a second bottom plate, the second bottom plate includes a third surface and a fourth surface opposite to the third surface, the protrusions are disposed on the third surface and electrically connected to the inner surface of the housing, the sides of the fourth surface of the second spring clip extend with inverted-L-shaped second bending portions in a direction away from the housing, and each inverted-L-shaped second bending portion and the fourth surface form a second receiving groove; the second end of the cylindrical spring is a ring of unclosed spring coil, is accommodated in the second accommodating grooves, and is fixed on the second spring clamping sheet so as to be in electrical contact with the inner surface of the electrical connection area of the shell.

19. The connecting structure according to claim 18 wherein the second spring tab has three sides each extending away from the housing with an inverted L-shaped side wall and another side opening, and wherein the second end of the cylindrical spring slides into the second pockets of the second spring tab.

20. A terminal device, characterized in that it comprises a PCB board and a housing arrangement according to any of claims 1-13.