CN215345689U - Power amplifier machine case electromagnetic shield structure - Google Patents
Power amplifier machine case electromagnetic shield structure Download PDFInfo
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- CN215345689U CN215345689U CN202121136260.3U CN202121136260U CN215345689U CN 215345689 U CN215345689 U CN 215345689U CN 202121136260 U CN202121136260 U CN 202121136260U CN 215345689 U CN215345689 U CN 215345689U
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Abstract
The utility model discloses a power amplifier case electromagnetic shielding structure which comprises a case body structure shell and a case cover plate. Has the advantages that: the surface treatment of the case cover plate is natural conductive oxidation, the case cover plate is fixedly connected with the case body structure shell through bolts, no gap exists on the contact surface, the conductive sealing rubber strip is made of silicon rubber aluminum-containing silver powder, the case cover plate is installed in a groove formed in the case body structure shell, the gap is blocked through extrusion deformation, the sealing performance is improved, the signal is reduced, the signal enters from the gap to generate signal interference, the conductive continuity is not influenced, the shielding enclosure frame is designed on the internal electric fitting shielding structure module, the surface treatment adopts conductive oxidation, the mutual interference between the internal module modules is prevented, the conductive shielding ring of the connector prevents the signal from leaking from the connector gap to cause the signal interference, the conductive continuity of the case is integrally guaranteed on the case body structure shell, a complete shielding pair is formed, and therefore the device has excellent shielding efficiency and is convenient to install.
Description
Technical Field
The utility model relates to the technical field of power amplifier case electromagnetic shielding, in particular to a power amplifier case electromagnetic shielding structure.
Background
In the field of radio frequency power amplifier structures, electromagnetic shielding between the outside of a case and an internal module can have important influence on signal indexes, and in the debugging production process, electromagnetic interference can have important influence on the whole machine, if the indexes of the modules are not problematic, the electromagnetic shielding is arranged in the case and is in joint debugging, but the problems cause other consequences such as self-excitation, and the like, so that the indexes of the whole machine cannot be met, the product period is prolonged, and the loss of manpower and financial resources is caused.
Traditional quick-witted case outside gap is more, reveals the signal easily, and inside components and parts outside also does not have fine shielding protection, leads to inside also to produce oneself electromagnetic interference easily, simultaneously, at the during operation, can produce a large amount of heats, can adopt the mode of seting up the ventilation hole in order to reach radiating purpose usually, but sets up the ventilation hole and increased the space, has increased the interference risk again, can further make the improvement.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the electromagnetic shielding structure of the power amplifier case, which has the advantages of excellent shielding efficiency, convenient structure installation and convenient ventilation and heat dissipation, and further solves the problems in the prior art.
(II) technical scheme
In order to realize the advantages of excellent shielding efficiency, convenient structure installation and convenient ventilation and heat dissipation, the utility model adopts the following specific technical scheme:
a power amplifier chassis electromagnetic shielding structure comprises a chassis body structure shell and a chassis cover plate, wherein the top surface of the chassis body structure shell is fixedly connected with a chassis cover plate through bolts, a groove is formed in the contact surface of one side surface of the chassis body structure shell and the chassis cover plate, a conductive sealing rubber strip is filled in the groove, the chassis cover plate is abutted against the conductive sealing rubber strip, an internal electric fitting shielding structure module is fixedly installed in the chassis body structure shell, a shielding enclosure frame is fixedly installed on the outer surface of the internal electric fitting shielding structure module, a connector is installed on one side, located on the internal electric fitting shielding structure module, in the chassis body structure shell, a through hole is formed in one side of the connector, one end of the connector is connected with a connecting wire, the connecting wire penetrates through the through hole, and a connector conductive shielding ring is fixedly installed between the connecting wire and the inner wall of the through hole, the outer wall of the conductive shielding ring of the connector is fixedly connected with the through hole, and the inner wall of the conductive shielding ring of the connector is abutted to the connecting wire.
Furthermore, through holes are formed in the outer walls of the two ends of the chassis body structure shell, the inner side surfaces of the through holes are located on the inner wall of the chassis body structure shell, ventilation shielding windows are fixedly connected through inner screws, and the area of each ventilation shielding window is larger than that of each through hole.
Furthermore, the case body structure shell is formed by adding an integral machine, and the surface of the case body structure shell is subjected to natural color conductive oxidation treatment.
Furthermore, the conductive sealing rubber strip is of an annular structure, and the conductive sealing rubber strip is made of silicon rubber and aluminum-containing silver powder.
Furthermore, the surface of the case cover plate is subjected to natural color conductive oxidation treatment, and the quality of the case cover plate is the same as that of the case body structure shell.
Further, the surface of the shielding enclosure frame is subjected to conductive oxidation treatment.
(III) advantageous effects
Compared with the prior art, the utility model provides a power amplifier case electromagnetic shielding structure, which has the following beneficial effects:
(1) the utility model adopts a shielding enclosure frame, a connector conductive shielding ring and a conductive sealing rubber strip, a chassis body structure shell is formed by an integral machine in an additive mode, the surface treatment is natural conductive oxidation, a groove for placing the conductive sealing rubber strip is designed on the contact surface of the chassis cover plate, the chassis cover plate surface treatment is natural conductive oxidation, the chassis cover plate is fixedly connected with the chassis body structure shell through a bolt to ensure that the contact surface has no gap, the conductive sealing rubber strip is made of silicon rubber aluminum-containing silver powder material and is arranged in the groove formed in the chassis body structure shell to plug the gap through extrusion deformation, the sealing performance is improved, the signal interference generated by the entering of the gap is reduced, the continuity of electric conduction is not influenced, the shielding enclosure frame is designed on the internal shielding structure module, the surface treatment is conductive oxidation, the mutual interference between the internal module modules is prevented, and the connector shielding ring prevents the signal from leaking from the gap of the connector to cause the signal interference, the casing of the machine body structure of the machine case integrally ensures the conductive continuity of the machine case and forms a complete shielding pair, so that the device has excellent shielding efficiency and convenient structural installation.
(2) The ventilation shielding windows are arranged on the surfaces of the two ends of the shell of the chassis body structure, so that the heat dissipation requirement of the chassis is met, the shielding efficiency of the chassis is also met, and the index of the chassis is ensured to meet the requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of an internal structure of an electromagnetic shielding structure of a power amplifier chassis according to the present invention;
fig. 2 is an external structural schematic diagram of an electromagnetic shielding structure of a power amplifier chassis according to the present invention;
fig. 3 is a top view of the housing structure of the present invention.
In the figure:
1. a chassis body structure housing; 2. a chassis cover plate; 3. a conductive sealing rubber strip; 4. an internal electrical shield structure module; 5. a connector conductive shield ring; 6. a ventilation shielding window; 7. internal threads; 8. a shielding enclosure frame; 9. a connector; 10. and (4) a groove.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the utility model, a power amplifier chassis electromagnetic shielding structure is provided.
Referring to the drawings and the detailed description, as shown in fig. 1-3, according to an embodiment of the present invention, an electromagnetic shielding structure of a power amplifier chassis includes a chassis body structure casing 1 and a chassis cover plate 2, a top surface of the chassis body structure casing 1 is fixedly connected to the chassis cover plate 2 through a bolt, wherein the chassis body structure casing 1 is formed by an integral machine, a surface of the chassis body structure casing 1 is subjected to a natural color conductive oxidation treatment, a surface of the chassis cover plate 2 is subjected to a natural color conductive oxidation treatment, a material of the chassis cover plate 2 is the same as that of the chassis body structure casing 1, a groove 10 is formed on a contact surface of a side surface of the chassis body structure casing 1 and the chassis cover plate 2, the groove 10 is of an annular structure, a conductive sealing rubber strip 3 is inserted into the groove 10, and the chassis cover plate 2 abuts against the conductive sealing rubber strip 3, wherein, the conductive sealing rubber strip 3 is an annular structure, and the conductive sealing rubber strip 3 is made of silicon rubber containing aluminum powder, the internal electric fitting shielding structure module 4 is fixedly arranged in the chassis body structure shell 1, and the outer surface of the internal electric fitting shielding structure module 4 is fixedly provided with a shielding surrounding frame 8, wherein, the surface of the shielding surrounding frame 8 is processed by conductive oxidation, the connector 9 is arranged at one side of the internal electric fitting shielding structure module 4 in the chassis body structure shell 1, and one side of the connector 9 is provided with a through hole, one end of the connector 9 is connected with a connecting wire, and the connecting wire penetrates through the through hole, and a connector conductive shielding ring 5 is fixedly arranged between the connecting wire and the inner wall of the through hole, the outer wall of the connector conductive shielding ring 5 is fixedly connected with the through hole, and the inner wall of the connector conductive shielding ring 5 is abutted against the connecting wire, the chassis body structure shell 1 is shaped by an integral machine, the surface treatment is natural color conductive oxidation, a groove 10 for placing a conductive sealing rubber strip 3 is designed on a contact surface with a chassis cover plate 2, the surface treatment of the chassis cover plate 2 is natural color conductive oxidation, the chassis cover plate is fixedly connected with a chassis body structure shell 1 through a bolt to ensure that the contact surface has no gap, the conductive sealing rubber strip 3 is made of silicon rubber aluminum powder material and is arranged in the groove 10 formed in the chassis body structure shell 1 to plug the gap through extrusion deformation, the sealing performance is improved, the signal interference caused by the signal entering from the gap is reduced, meanwhile, the conductive continuity is not influenced, an internal electric fitting shielding structure module 4 is designed with a shielding surrounding frame 8, the surface treatment adopts conductive oxidation to prevent the mutual interference between the internal modules, a connector conductive shielding ring 5 prevents the signal from leaking from the gap of a connector 9 to cause signal interference, and the conductive continuity of the chassis body structure shell 1 is integrally ensured, and a complete shielding pair is formed, so that the device has excellent shielding efficiency and convenient structural installation.
In one embodiment, through holes are formed in the outer walls of the two ends of the chassis body structure shell 1, the inner side surfaces of the through holes are located on the inner wall of the chassis body structure shell 1 and are fixedly connected with ventilation shielding windows 6 through inner screws 7, the area of each ventilation shielding window 6 is larger than that of each through hole, the shielding area is increased, gaps which cannot shield signals are avoided, the ventilation shielding windows 6 are installed on the surfaces of the two ends of the chassis body structure shell 1, the heat dissipation requirement of a chassis is met, the shielding efficiency of the chassis is also met, and the index of the chassis is guaranteed to meet the requirement.
The working principle is as follows:
the chassis body structure shell 1 is formed by integral machine addition, the surface treatment is natural color conductive oxidation, a groove 10 for placing a conductive sealing rubber strip 3 is designed on the contact surface with a chassis cover plate 2, the surface treatment of the chassis cover plate 2 is natural color conductive oxidation, the chassis cover plate is fixedly connected with the chassis body structure shell 1 through a bolt, no gap exists on the contact surface, the conductive sealing rubber strip 3 is made of silicon rubber aluminum-containing silver powder material and is arranged in the groove 10 formed in the chassis body structure shell 1, the gap is blocked by extrusion deformation, the sealing performance is improved, the signal interference caused by the signal entering from the gap is reduced, the conductive continuity is not influenced, the shielding enclosure frame 8 is designed on the inner electric fitting shielding structure module 4, the surface treatment is conductive oxidation, the mutual interference among the inner module modules is prevented, the conductive shielding ring 5 of the connector is used for preventing the signal leakage from the gap of the connector 9 to cause the signal interference, the chassis body structure shell 1 integrally guarantees the conductive continuity of the chassis and forms a complete shielding pair, so that the device has excellent shielding efficiency and convenient structure installation, and meanwhile, the ventilation shielding windows 6 are arranged on the surfaces of the two ends of the chassis body structure shell 1, thereby not only meeting the heat dissipation requirement of the chassis, but also meeting the shielding efficiency of the chassis and guaranteeing the index of the chassis to meet the requirement.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The electromagnetic shielding structure of the power amplifier case is characterized by comprising a case body structure shell (1) and a case cover plate (2), wherein the top surface of the case body structure shell (1) is fixedly connected with the case cover plate (2) through bolts, a groove (10) is formed in the contact surface between the surface of one side of the case body structure shell (1) and the case cover plate (2), a conductive sealing rubber strip (3) is inserted into the groove (10), the case cover plate (2) is abutted against the conductive sealing rubber strip (3), an internal electric fitting shielding structure module (4) is fixedly installed in the case body structure shell (1), a shielding enclosure frame (8) is fixedly installed on the outer surface of the internal electric fitting shielding structure module (4), a connector (9) is installed on one side, located on the internal electric fitting shielding structure module (4), in the case body structure shell (1), and a through hole is formed in one side of the connector (9), one end of the connector (9) is connected with a connecting wire, the connecting wire penetrates through the through hole, a connector conductive shielding ring (5) is fixedly installed between the connecting wire and the inner wall of the through hole, the outer wall of the connector conductive shielding ring (5) is fixedly connected with the through hole, and the inner wall of the connector conductive shielding ring (5) is abutted to the connecting wire.
2. The power amplifier cabinet electromagnetic shielding structure according to claim 1, wherein through holes are formed in outer walls of two ends of the cabinet body structure casing (1), inner side surfaces of the through holes are located on the inner wall of the cabinet body structure casing (1), ventilation shielding windows (6) are fixedly connected through inner screws (7), and the area of the ventilation shielding windows (6) is larger than that of the through holes.
3. The power amplifier cabinet electromagnetic shielding structure according to claim 1, wherein the cabinet body structure housing (1) is formed by an integral machine, and the surface of the cabinet body structure housing (1) is subjected to a natural color conductive oxidation treatment.
4. The power amplifier cabinet electromagnetic shielding structure according to claim 1, wherein the conductive sealing rubber strip (3) is an annular structure, and the conductive sealing rubber strip (3) is made of silicon rubber aluminum-silver-containing powder material.
5. The power amplifier cabinet electromagnetic shielding structure according to claim 1, wherein the surface of the cabinet cover plate (2) is subjected to natural color conductive oxidation treatment, and the material of the cabinet cover plate (2) is the same as that of the cabinet structure shell (1).
6. The power amplifier chassis electromagnetic shielding structure according to claim 1, wherein the surface of the shielding enclosure frame (8) is subjected to conductive oxidation treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121136260.3U CN215345689U (en) | 2021-05-25 | 2021-05-25 | Power amplifier machine case electromagnetic shield structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121136260.3U CN215345689U (en) | 2021-05-25 | 2021-05-25 | Power amplifier machine case electromagnetic shield structure |
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| Publication Number | Publication Date |
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| CN215345689U true CN215345689U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121136260.3U Active CN215345689U (en) | 2021-05-25 | 2021-05-25 | Power amplifier machine case electromagnetic shield structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583896A (en) * | 2022-03-10 | 2022-06-03 | 嘉兴学院 | Switched reluctance motor with good anti-electromagnetic interference effect |
| CN117559136A (en) * | 2024-01-12 | 2024-02-13 | 成都天锐星通科技有限公司 | Antenna terminal and electronic equipment |
-
2021
- 2021-05-25 CN CN202121136260.3U patent/CN215345689U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583896A (en) * | 2022-03-10 | 2022-06-03 | 嘉兴学院 | Switched reluctance motor with good anti-electromagnetic interference effect |
| CN114583896B (en) * | 2022-03-10 | 2022-09-23 | 嘉兴学院 | Switched reluctance motor with good anti-electromagnetic interference effect |
| CN117559136A (en) * | 2024-01-12 | 2024-02-13 | 成都天锐星通科技有限公司 | Antenna terminal and electronic equipment |
| CN117559136B (en) * | 2024-01-12 | 2024-04-02 | 成都天锐星通科技有限公司 | Antenna terminal and electronic equipment |
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