CN111917433A - Communication terminal - Google Patents
Communication terminal Download PDFInfo
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- CN111917433A CN111917433A CN202010575626.0A CN202010575626A CN111917433A CN 111917433 A CN111917433 A CN 111917433A CN 202010575626 A CN202010575626 A CN 202010575626A CN 111917433 A CN111917433 A CN 111917433A
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- foil
- circuit board
- straight rod
- shell
- communication terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
The invention relates to the technical field of communication, in particular to a communication terminal, which comprises a shell, a communication module and a power supply, wherein the shell is provided with a first end and a second end; a circuit board is arranged in the shell, a straight rod perpendicular to the surface of the circuit board is arranged in the shell, a foil strip is arranged at the top end of the straight rod, and a piece of folded foil paper is arranged between the foil strip and the upper surface of the circuit board; due to the compact space design between the size of the shell and the functional modules, the installation of the electromagnetic shielding structure is limited, and the functional modules generate various frequency spectrum interference in the operation process and simultaneously interfere the transmission effect of the electromagnetic communication; therefore, the invention separates the areas of the elements by the metal foil material arranged on the circuit board, and controls the stretching space of the metal foil material by the stretching of the straight rods, thereby avoiding the interference to the compact space in the shell, and effectively inhibiting the mutual interference among the electromagnetic waves by the metal foil structure formed among the straight rods, thereby improving the operation effect of the communication terminal.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a communication terminal.
Background
The communication terminal is a direct tool for people to enjoy communication services in different information applications, and undertakes various tasks such as providing a good user interface for users, completing required service functions, accessing a communication network and the like; the wireless communication terminal achieves the purpose of data transmission by sending out electromagnetic signals, and the interaction generated among the electromagnetic signals can cause interference to the operation of the communication terminal; for the introduction of electromagnetic compatibility of communication terminals, see: handsome et al, electromagnetic compatibility requirement [ J ] of FCC certification of wireless communication terminals, security and electromagnetic compatibility, 2018(No.3), 37-39.
The working frequency of an embedded multimedia application processor and a digital circuit used by the existing wireless communication terminal product is higher and higher, so that the frequency spectrum of an interference signal in the terminal is wider and wider, and meanwhile, the signal receiving performance of the embedded multimedia application processor and the digital circuit is influenced by an internal interference signal, so that the comprehensive performance is reduced.
Some technical solutions related to a communication terminal also appear in the prior art, for example, a chinese patent with application number 2016800824460 discloses a communication terminal, which includes a multiple-input multiple-output antenna system, where the multiple-input multiple-output antenna system includes a first antenna module, a second antenna module, and a first ground structure; the first antenna module comprises a first radiator and a second radiator, and a first gap is formed between the first radiator and the second radiator; the second antenna module comprises a third radiator and a fourth radiator, the second radiator is connected with the third radiator, the first radiator is used for forming a first MIMO antenna, the second radiator is used for forming a GPS antenna, the third radiator is used for forming a first low-frequency communication antenna, and the fourth radiator is used for forming a second MIMO antenna; one end of the first grounding structure is connected with at least one of the second radiator and the third radiator, and the other end of the first grounding structure is connected to the ground plane of the communication terminal, so that the isolation between the first antenna module and the second antenna module is increased. The communication terminal in the technical scheme can effectively improve the isolation between the antenna modules; however, the technical scheme does not effectively solve the problem of electromagnetic interference generated during the operation of each functional module in the communication terminal, and weakens the type signal effect of the communication terminal in application.
In view of this, in order to overcome the above technical problems, the present inventors have designed and developed a communication terminal that employs a special electromagnetic shielding structure to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the communication terminal, the regions where the elements are located are separated through the metal foil material arranged on the circuit board, the stretching space of the metal foil material is controlled through the stretching of the straight rod, the interference to the compact space inside the shell is avoided, the metal foil structure formed among the straight rods effectively inhibits the mutual interference among electromagnetic waves, and therefore the operation effect of the communication terminal is improved.
The invention relates to a communication terminal, which comprises a shell, a communication module and a power supply, wherein the shell is provided with a first end and a second end; a circuit board is arranged in the shell, a processor is arranged in the middle of the circuit board, and a communication module and a power supply are respectively arranged at two ends of the processor; the circuit board is provided with through holes which are distributed at four corners of elements on the circuit board; a straight rod perpendicular to the surface of the circuit board is arranged in the through hole, and the length of the straight rod extending out of the circuit board is changed by moving along the through hole; a foil is arranged below the circuit board, four corners of the foil are fixed at the bottom end of the straight rod, and the foil is attached to the lower surface of the circuit board after the straight rod is completely lifted; the top end of the straight rod is provided with a foil strip, two ends of the foil strip are respectively fixed at the top of the straight rod, and a piece of folded foil paper is arranged between the foil strip and the upper surface of the circuit board; the upper end and the lower end of the foil paper are respectively fixed in the foil strip and the circuit board, and the foil paper wraps the side face of the element on the circuit board under the pulling of the foil strip; the processor in the shell has extremely high working frequency during operation, can act with the working frequency in the digital circuit on the circuit board to generate interference signals and influence the performance of the communication module, the installation of the electromagnetic shielding structure is limited due to the compact space design between the size of the shell and the functional module, and the functional module generates various frequency spectrum interference during the operation and interferes the transmission effect of the electromagnetic communication; therefore, the straight rod arranged on the circuit board is matched with the metal foil material on the straight rod, and after the functional element is installed on the circuit board, the straight rod is completely pulled up, so that the metal foil material separates the areas among the functional modules, and the mutual interference among electromagnetic waves generated by the element on the circuit board in the running process is limited; the invention utilizes the metal foil material arranged on the circuit board to separate the areas of all the elements, and controls the stretching space of the metal foil material through the stretching of the straight rod, thereby avoiding the interference to the compact space in the shell, and the metal foil structure formed between the straight rods effectively inhibits the mutual interference among the electromagnetic waves, thereby improving the operation effect of the communication terminal.
Preferably, the straight rod is provided with a rotating rod, the diameter of the rotating rod is smaller than that of the straight rod, and the rotating rod is meshed in the straight rod through threads; the top of the rotating rod is provided with a rotating lantern ring, and the lantern ring is fixed with the end part of the foil strip; the surface of the straight rod is provided with a convex strip which is parallel to the axial direction of the straight rod; a notch is arranged in the through hole corresponding to the raised line, and the raised line limits the rotation of the straight rod in the through hole; elements in the shell have different model sizes, and the compact space in the shell needs a metal foil material to be correspondingly adjusted, so that the electromagnetic shielding effect is met, and the occupation of the internal structure of the shell is reduced; through setting up the bull stick of meshing on the straight-bar, cooperation bull stick top pivoted lantern ring, through the engaged state between control bull stick and straight-bar, change the foil height that the foil pulled up, with the size phase-match of each component on the circuit board, and guarantee through the sand grip card that the bull stick rotates the length that stretches out on the straight-bar in the notch, the state after the regulation of metal foil material has been stabilized, the interference to the internal space of casing has been avoided, thereby communication terminal's operation effect has been promoted.
Preferably, the raised lines are provided with a plurality of layers of hole grooves, the hole grooves are parallel to the plane of the circuit board, and the size of the hole grooves is matched with the thickness of the circuit board; the bottom of the straight rod is provided with a clamp ring, the clamp ring is fixed with the four corners of the foil, and the clamp ring is clamped on the hole groove to enable the foil to be attached to the circuit board; different types of elements arranged on the circuit board bring larger size difference, and the range of adjusting the metal foil material is difficult to fully meet the required size requirement only by the meshing rotation of the rotating rod on the straight rod; through setting up the hole groove on the sand grip, rotate the straight-bar and make the hole groove block on the circuit board, and then changed the relative circuit board of straight-bar and stretched out length, the regulation cooperation between straight-bar and bull stick has increased the removal scope of foil strip in the circuit board top, and the clearance that produces between foil and the circuit board simultaneously is adjusted through the snap ring of straight-bar bottom, ensures taking effect of foil electromagnetic shield to communication terminal's operation effect has been promoted.
Preferably, the top of the lantern ring is provided with a clamping groove, and the bottom surface of the clamping groove is coincided with the top surface of the foil strip; a foil plate is arranged in the clamping groove in a sliding mode, and the foil plate is attached to the foil strip; a pin rod is arranged at the top end of the lantern ring and used for fixing the foil plate in the clamping groove; the bottom and the side of the element are wrapped by the metal foil material between the movable straight rods on the circuit board, so that the mutual interference generated by electromagnetic wave signals is limited, and the diffraction characteristic of an electromagnetic spectrum can achieve the complete electromagnetic shielding effect by completely sealing an electromagnetic interference source; through setting up the draw-in groove at lantern ring top, laminate mutually with the foil strip in installing the draw-in groove with the foil board to fix the foil board through the pin rod, made form complete enclosed construction between the metal foil material, perfect the electromagnetic shield effect of metal foil material, thereby promoted communication terminal's operation effect.
Preferably, the power supply is provided with a metal shell, the metal shell wraps the position of the power supply on the circuit board, and the metal shell is in contact with the outer surface of the power supply; the transient current generated by the power supply in the shell during working is very large, and the interference of high-power electromagnetic waves can break through the shielding layer made of the metal foil material, so that the high-energy electromagnetic waves generated by the power supply influence the operation of elements in the shell; the power supply area installed on the circuit board is separated through the metal shell arranged on the power supply, the high-energy electromagnetic waves generated by the power supply are limited by the shielding efficiency of the metal shell, the metal shell is in contact with the outer surface of the power supply, the heat dissipation effect in the operation of the power supply is promoted, the stability of the power supply is maintained, and therefore the operation effect of the communication terminal is improved.
Preferably, the foil plate is provided with silicone grease which is attached to the surface of the lower side of the foil plate; the foil plate is attached to the top of the element through silicone grease; the elements on the circuit board generate electromagnetic interference and heat at the same time, and the operating state of the elements is influenced finally by the temperature rise effect generated by the heat accumulated in the elements; the silicone grease arranged on the foil plate is in contact with the top of the element, so that heat generated in the operation of the element is transferred to the foil plate through the silicone grease, the element is ensured to be at a proper operation temperature, and the operation effect of the communication terminal is improved.
The invention has the following beneficial effects:
1. the invention separates the areas of each element by the metal foil material arranged on the circuit board, and avoids occupying the space in the shell by controlling the stretching space of the metal foil material, and inhibits the mutual interference among the electromagnetic waves; the foil paper height pulled up by the foil strips is changed by controlling the meshing state between the rotating rod and the straight rod, so that the interference to the internal space of the shell is avoided; the hole grooves arranged on the convex strips increase the moving range of the foil strips above the circuit board.
2. According to the invention, the foil plate is arranged in the clamping groove and is attached to the foil strip through the clamping groove arranged at the top of the lantern ring, so that a complete closed structure is formed between the metal foils, and the electromagnetic shielding effect of the metal foils is perfected; the metal shell arranged on the power supply limits high-energy electromagnetic waves generated by the power supply and promotes heat dissipation in the operation of the power supply; the silicone grease provided on the foil plate allows heat generated during operation of the component to be transferred to the foil plate through the silicone grease, ensuring that the component is at a suitable operating temperature.
Drawings
The invention is further described with reference to the following figures and embodiments.
Fig. 1 is a perspective view of a communication terminal in the present invention;
FIG. 2 is a perspective view of a through hole portion in the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B;
FIG. 5 is a perspective view of the bottom surface of the circuit board of the present invention;
in the figure: the device comprises a shell 1, a communication module 2, a power supply 3, a metal shell 31, a circuit board 4, a through hole 41, a notch 42, a processor 5, a straight rod 6, a rotating rod 61, a lantern ring 62, a clamping groove 621, a pin 622, a convex strip 63, a hole 631, a clamping ring 64, a foil 7, a foil strip 71, a foil 72, a foil 73 and silicone 731.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, a communication terminal according to the present invention includes a housing 1, a communication module 2, and a power supply 3; a circuit board 4 is arranged in the shell 1, a processor 5 is arranged in the middle of the circuit board 4, and a communication module 2 and a power supply 3 are respectively arranged at two ends of the processor 5; the circuit board 4 is provided with through holes 41, and the through holes 41 are distributed at four corners of elements on the circuit board 4; a straight rod 6 vertical to the surface of the circuit board 4 is arranged in the through hole 41, and the straight rod 6 moves along the through hole 41 to change the extending length on the circuit board 4; a foil 7 is arranged below the circuit board 4, four corners of the foil 7 are fixed at the bottom end of the straight rod 6, and the foil 7 is attached to the lower surface of the circuit board 4 after the straight rod 6 is completely lifted; the top end of the straight rod 6 is provided with a foil strip 71, two ends of the foil strip 71 are respectively fixed on the top of the straight rod 6, and a folded foil 72 is arranged between the foil strip 71 and the upper surface of the circuit board 4; the upper end and the lower end of the foil 72 are respectively fixed in the foil 71 and the circuit board 4, and the foil 72 wraps the side face of the element on the circuit board 4 under the pulling of the foil 71; the processor 5 in the shell 1 has extremely high working frequency when running, can interact with the working frequency in the digital circuit on the circuit board 4 to generate interference signals, and can influence the performance of the communication module 2, because of the compact space design between the self size of the shell 1 and the functional modules, the installation of the electromagnetic shielding structure is limited, and the functional modules can generate various frequency spectrum interference in the running process and interfere the transmission effect of self electromagnetic communication; therefore, according to the invention, the straight rod 6 arranged on the circuit board 4 is matched with the metal foil material on the straight rod 6, and after the functional element is mounted on the circuit board 4, the straight rod 6 is completely pulled up, so that the metal foil material separates the regions between the functional modules, and the mutual interference of electromagnetic waves generated by the element on the circuit board 4 in the running process is limited; the invention utilizes the metal foil material arranged on the circuit board 4 to separate the areas where the elements are positioned, and controls the stretching space of the metal foil material through the stretching of the straight rod 6, thereby avoiding the interference to the compact space inside the shell 1, and the metal foil structure formed among the straight rods 6 effectively inhibits the mutual interference among the electromagnetic waves, thereby improving the operation effect of the communication terminal.
As an embodiment of the invention, the straight rod 6 is provided with a rotating rod 61, the diameter of the rotating rod 61 is smaller than that of the straight rod 6, and the rotating rod 61 is engaged in the straight rod 6 through threads; the top of the rotating rod 61 is provided with a rotating lantern ring 62, and the lantern ring 62 is fixed with the end part of the foil strip 71; the surface of the straight rod 6 is provided with a convex strip 63, and the convex strip 63 is parallel to the axial direction of the straight rod 6; a notch 42 is arranged in the through hole 41 corresponding to the convex strip 63, and the convex strip 63 limits the rotation of the straight rod 6 in the through hole 41; elements in the shell 1 have different model sizes, and the compact space in the shell needs a metal foil material to be correspondingly adjusted, so that the occupation of the internal structure of the shell 1 is reduced while the electromagnetic shielding effect is met; through setting up the bull stick 61 of meshing on straight-bar 6, cooperation bull stick 61 top pivoted lantern ring 62, through the engaged state between control bull stick 61 and straight-bar 6, change the foil 72 height that foil strip 71 was drawn up, with the size phase-match of each component on circuit board 4, and guarantee through sand grip 63 card in notch 42 that bull stick 61 rotates the length of stretching out on straight-bar 6, the state after the regulation of the metal foil material has been stabilized, the interference to casing 1 inner space has been avoided, thereby communication terminal's operational effect has been promoted.
As an embodiment of the present invention, the raised strip 63 is provided with a plurality of layers of hole slots 631, the hole slots 631 are parallel to the plane of the circuit board 4, and the size of the hole slots 631 matches the thickness of the circuit board 4; the bottom of the straight rod 6 is provided with a clamp ring 64, the clamp ring 64 is fixed with the four corners of the foil 7, and the clamp ring 64 is clamped on the hole groove 631 to enable the foil 7 to be attached to the circuit board 4; different types of elements mounted on the circuit board 4 bring larger size difference, and the range of adjusting the metal foil material is difficult to fully meet the required size requirement only by the meshing rotation of the rotating rod 61 on the straight rod 6; through setting up hole groove 631 on sand grip 63, it makes the hole groove 631 block on circuit board 4 to rotate straight-bar 6, and then changed the length that straight-bar 6 stretches out relative circuit board 4, the regulation cooperation between straight-bar 6 and bull stick 61, the moving range of foil 71 in circuit board 4 top has been increased, the clearance that produces simultaneously between foil 7 and circuit board 4 is adjusted through the snap ring 64 of straight-bar 6 bottom, ensure taking effect of foil 7 electromagnetic shield, thereby communication terminal's operation effect has been promoted.
As an embodiment of the present invention, a clamping groove 621 is disposed at the top of the collar 62, and a bottom surface of the clamping groove 621 coincides with a top surface of the foil strip 71; a foil plate 73 which is installed in a sliding mode is arranged in the clamping groove 621, and the foil plate 73 is attached to the foil strip 71; a pin 622 is arranged at the top end of the collar 62, and the pin 622 fixes the foil plates 73 in the clamping grooves 621; the bottom and the side of the element are wrapped by the metal foil material between the movable straight rods 6 on the circuit board 4, so that the mutual interference generated by electromagnetic wave signals is limited, and the diffraction characteristic of an electromagnetic spectrum can achieve the complete electromagnetic shielding effect by completely sealing an electromagnetic interference source; through setting up draw-in groove 621 at lantern ring 62 top, install foil plate 73 in draw-in groove 621 with foil strip 71 laminating mutually to fix foil plate 73 through pin rod 622, made between the metal foil material form complete enclosed construction, perfect the electromagnetic shielding effect of metal foil material, thereby promoted communication terminal's operation effect.
As an embodiment of the present invention, a metal shell 31 is disposed on the power supply 3, the metal shell 31 wraps up the position of the power supply 3 on the circuit board 4, and the metal shell 31 contacts with the outer surface of the power supply 3; the transient current generated by the power supply 3 in the shell 1 during operation is very large, and the interference of high-power electromagnetic waves can break through the shielding layer made of metal foil materials, so that the high-energy electromagnetic waves generated by the power supply 3 influence the operation of elements in the shell 1; the power supply 3 installed on the circuit board 4 is separated by the metal shell 31 arranged on the power supply 3, the shielding efficiency of the metal shell 31 is utilized to limit the high-energy electromagnetic waves generated by the power supply 3, and the contact between the metal shell 31 and the outer surface of the power supply 3 promotes the heat dissipation effect of the power supply 3 in the operation process, maintains the stability of the power supply 3, thereby improving the operation effect of the communication terminal.
As an embodiment of the present invention, the foil plate 73 is provided with silicone grease 731, and the silicone grease 731 is attached to the surface of the lower side of the foil plate 73; the foil plate 73 is attached to the top of the element by means of silicone 731; the elements on the circuit board 4 generate electromagnetic interference and heat at the same time, and the temperature rise effect generated by the heat accumulated in the elements finally influences the operation state of the elements; the silicone grease 731 arranged on the foil plate 73 is in contact with the top of the component, so that heat generated during the operation of the component is transferred to the foil plate 73 through the silicone grease 731, the component is ensured to be in a proper operation temperature, and the operation effect of the communication terminal is improved.
When the communication module works, the processor 5 in the shell 1 has extremely high working frequency during operation, and can generate interference signals by interacting with the working frequency in the digital circuit on the circuit board 4 and influence the performance of the communication module 2; through the straight rod 6 arranged on the circuit board 4, the straight rod 6 is matched with the metal foil material on the straight rod 6, after the functional element is installed on the circuit board 4, the straight rod 6 is completely pulled up, so that the metal foil material separates the areas among the functional modules, and the mutual interference among electromagnetic waves generated by the element on the circuit board 4 in the running process is limited; the rotating rod 61 which is arranged on the straight rod 6 and is meshed with the straight rod 6 is matched with the lantern ring 62 which rotates at the top of the rotating rod 61, the height of foil paper 72 pulled up by a foil strip 71 is changed by controlling the meshing state between the rotating rod 61 and the straight rod 6 and is matched with the size of each element on the circuit board 4, the protruding strip 63 is clamped in the notch 42 to ensure the rotating rod 61 to rotate and extend on the straight rod 6, the state of a metal foil material after adjustment is stabilized, and the interference to the inner space of the shell 1 is avoided; the hole groove 631 formed in the protruding strip 63 is used for rotating the straight rod 6 to enable the hole groove 631 to be clamped on the circuit board 4, so that the extending length of the straight rod 6 relative to the circuit board 4 is changed, the straight rod 6 is adjusted and matched with the rotating rod 61, the moving range of the foil strip 71 above the circuit board 4 is increased, meanwhile, a gap generated between the foil 7 and the circuit board 4 is adjusted through the clamping ring 64 at the bottom of the straight rod 6, and the effect of electromagnetic shielding of the foil 7 is guaranteed; the clamping groove 621 is formed in the top of the lantern ring 62, the foil plates 73 are mounted in the clamping groove 621 and attached to the foil strips 71, and the foil plates 73 are fixed through the pin rods 622, so that a complete closed structure is formed among the metal foils, and the electromagnetic shielding effect of the metal foils is improved; the metal shell 31 arranged on the power supply 3 separates the power supply 3 region arranged on the circuit board 4, the shielding effectiveness of the metal shell 31 is utilized to limit the high-energy electromagnetic wave generated by the power supply 3, and the contact between the metal shell 31 and the outer surface of the power supply 3 promotes the heat dissipation effect of the power supply 3 in the operation process, thereby maintaining the stability of the power supply 3; the silicone grease 731 provided on the foil plate 73 is in contact with the top of the components, so that heat generated during operation of the components is transferred to the foil plate 73 through the silicone grease 731, ensuring that the components are at a suitable operating temperature.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A communication terminal comprising a housing (1), a communication module (2) and a power supply (3); a circuit board (4) is arranged in the shell (1), a processor (5) is arranged in the middle of the circuit board (4), and a communication module (2) and a power supply (3) are respectively arranged at two ends of the processor (5); the method is characterized in that: the circuit board (4) is provided with through holes (41), and the through holes (41) are distributed at four corners of elements on the circuit board (4); a straight rod (6) perpendicular to the surface of the circuit board (4) is arranged in the through hole (41), and the straight rod (6) moves along the through hole (41) to change the extending length of the circuit board (4); a foil (7) is arranged below the circuit board (4), four corners of the foil (7) are fixed to the bottom end of the straight rod (6), and the foil (7) is attached to the lower surface of the circuit board (4) after the straight rod (6) is completely lifted; the top end of the straight rod (6) is provided with a foil strip (71), two ends of the foil strip (71) are respectively fixed on the top of the straight rod (6), and a folded foil paper (72) is arranged between the foil strip (71) and the upper surface of the circuit board (4); the upper end and the lower end of the foil paper (72) are respectively fixed in the foil strip (71) and the circuit board (4), and the foil paper (72) wraps the side face of an element on the circuit board (4) under the pulling of the foil strip (71).
2. A communication terminal according to claim 1, characterized in that: the straight rod (6) is provided with a rotating rod (61), the diameter of the rotating rod (61) is smaller than that of the straight rod (6), and the rotating rod (61) is meshed in the straight rod (6) through threads; a rotating lantern ring (62) is arranged at the top of the rotating rod (61), and the lantern ring (62) is fixed with the end part of the foil strip (71); convex strips (63) are arranged on the surface of the straight rod (6), and the convex strips (63) are parallel to the axial direction of the straight rod (6); a notch (42) is arranged in the through hole (41) corresponding to the convex strip (63), and the convex strip (63) limits the rotation of the straight rod (6) in the through hole (41).
3. A communication terminal according to claim 2, characterized in that: a plurality of layers of hole grooves (631) are formed in the convex strip (63), the hole grooves (631) are parallel to the plane of the circuit board (4), and the size of the hole grooves (631) is matched with the thickness of the circuit board (4); the bottom of the straight rod (6) is provided with a clamping ring (64), the clamping ring (64) is fixed with the four corners of the foil sheet (7), and the clamping ring (64) is clamped on the hole groove (631) to enable the foil sheet (7) to be attached to the circuit board (4).
4. A communication terminal according to claim 2, characterized in that: a clamping groove (621) is formed in the top of the lantern ring (62), and the bottom surface of the clamping groove (621) is overlapped with the top surface of the foil strip (71); a foil plate (73) which is installed in a sliding mode is arranged in the clamping groove (621), and the foil plate (73) is attached to the foil strip (71); the top end of the lantern ring (62) is provided with a pin rod (622), and the pin rod (622) fixes the foil plate (73) in the clamping groove (621).
5. A communication terminal according to claim 1, characterized in that: the power supply (3) is provided with a metal shell (31), the metal shell (31) wraps the position of the power supply (3) on the circuit board (4), and the metal shell (31) is in contact with the outer surface of the power supply (3).
6. A communication terminal according to claim 4, characterized in that: the foil plate (73) is provided with silicone grease (731), and the silicone grease (731) is attached to the surface of the lower side of the foil plate (73); the foil plate (73) is attached to the top of the element by means of silicone grease (731).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010575626.0A CN111917433B (en) | 2020-06-22 | 2020-06-22 | Communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010575626.0A CN111917433B (en) | 2020-06-22 | 2020-06-22 | Communication terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111917433A true CN111917433A (en) | 2020-11-10 |
| CN111917433B CN111917433B (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010575626.0A Active CN111917433B (en) | 2020-06-22 | 2020-06-22 | Communication terminal |
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| CN111917433B (en) | 2022-01-07 |
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