CN210272621U - Novel load - Google Patents
Novel load Download PDFInfo
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- CN210272621U CN210272621U CN201921368281.0U CN201921368281U CN210272621U CN 210272621 U CN210272621 U CN 210272621U CN 201921368281 U CN201921368281 U CN 201921368281U CN 210272621 U CN210272621 U CN 210272621U
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- load
- resistor
- inner conductor
- heat dissipation
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Abstract
The utility model discloses a novel load, which comprises a load cavity, wherein a base, a resistor and an inner conductor are sequentially arranged in the load cavity, and heat dissipation devices are symmetrically arranged at two sides of the load cavity; the base is arranged at one end of the load cavity, and an installation groove is formed in the base; the first end face of the resistor is arranged in the mounting groove, and the other end face of the resistor is provided with a printed board in a fitting manner; one end of the inner conductor penetrates through the printed board to be connected with the other end of the resistor, the other end of the inner conductor is installed at the other end of the load cavity through the sealing assembly, the load can achieve third-order intermodulation, the range of intermodulation values is less than or equal to-120 dBc, the load has a small size and can achieve high power performance, the frequency band response range is wide, the load has a wide working temperature range of-55 ℃ to +150 ℃, the mean power can reach more than 200W, and the load is suitable for application occasions of high-power loads.
Description
Technical Field
The utility model relates to a radio frequency load technical field, concretely relates to novel load.
Background
The load is a microwave passive single-port device and is widely applied to termination of a branch node or a detection port in an extension link of a distribution system as absorption and matching of power in equipment of a microwave communication system. The main function of the radio frequency load is to completely absorb microwave energy from the transmission line and improve the matching performance of the circuit, the load is usually connected with the terminal of the circuit, the load can absorb the microwave energy and convert the microwave energy into heat to be released when the radio frequency load works, and the current radio frequency load has general heat dissipation capacity and is easy to burn due to heat accumulation for a high-frequency resistor.
The existing mainstream load adopts a built-in beryllium oxide material to absorb the load and a radiating fin, the resistor type design is mature, the resistor type is more applied to the existing communication distribution coverage system, but due to the adoption of magnetic materials such as a thick film resistor, the passive intermodulation index has high randomness, the intermodulation value can not realize multi-order intermodulation, the influence of the power of the absorbed load is low, and the high-requirement use scene of multi-system mixing at the present stage is difficult to meet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel load, intermodulation value can realize that third-order intermodulation and load heat dissipation are fast to solve current intermodulation value and can not realize multistage intermodulation and the not good problem of radiating effect.
The purpose of the utility model is realized through the following technical scheme:
a novel load comprises a load cavity, wherein a base, a resistor and an inner conductor are sequentially arranged in the load cavity, and heat dissipation devices are symmetrically arranged on two sides of the load cavity;
the base is arranged at one end of the load cavity, and an installation groove is formed in the base;
the first end face of the resistor is arranged in the mounting groove, and the other end face of the resistor is provided with a printed board in a fitting manner;
one end of the inner conductor penetrates through the printed board to be connected with the other end of the resistor, and the other end of the inner conductor is installed at the other end of the load cavity through a sealing assembly.
Further, seal assembly includes swivel nut, sealing washer and snap ring, the sealing washer cover is established the other end of inner conductor, the snap ring cup joints the skin at the sealing washer, the adjacent department cover of the other end of inner conductor is equipped with the insulator, the outer cover of insulator is equipped with connecting portion, the tip of swivel nut pass through the snap ring joint in on the connecting portion.
Furthermore, the heat dissipation device is a heat dissipation shell, the heat dissipation shell is provided with a plurality of protruding edges, and a plurality of ventilation grooves are formed between the protruding edges in a staggered mode.
Furthermore, the heat dissipation shell is made of an aluminum alloy material, and the outer surface layer of the heat dissipation shell is provided with an anti-oxidation layer of 0.5-0.6 um.
Further, the resistor is a beryllium oxide resistor.
Further, an outer conductor is connected to the other end of the inner conductor.
Further, the outer conductor is made of brass plated ternary alloy, and the inner conductor is made of beryllium bronze silver plated material.
Further, the load chamber housing is made of an aluminum alloy material.
The utility model has the advantages that:
1) the utility model discloses a load simple structure, simple to operate can directly weld the installation, can realize three-order intermodulation, and the scope of intermodulation value is for being less than or equal to-120 dBc, and this load possesses less size to can realize higher power performance, frequency band response range broad has-55 ℃ - +150 ℃'s wide operating temperature range, and mean value power can reach 200W, is fit for being used for high power load's application scenario.
2) The utility model discloses a heat dissipation shell of load sets up in load cavity both sides symmetrically, the heat dissipation shell is equipped with a plurality of abrupt arris, a plurality of crisscross setting forms a plurality of ventilation groove between the abrupt arris, and the abrupt arris sets up spatial structure and has increased radiating area, and the ventilation groove has accelerated radiating speed, optimizes the heat dispersion of load, strengthens the reliability of product, and the heat of its resistance can be rather than the base that tight fit is connected and transmit the heat dissipation shell along the printing board and dispel the heat to guarantee the heat dissipation of radio frequency load, prevent that the resistance from burning out because of the heat accumulation; the outer conductor is made of brass plated ternary alloy, the inner conductor is made of beryllium bronze silver plated material, and the materials can ensure stable performance of load and improve reliability, so that the integrity of the product can meet the design requirement.
Drawings
Fig. 1 is a schematic view of the overall structure of the load of the present invention;
fig. 2 is a schematic structural view of the heat dissipation device of the present invention;
in the figure, 1-load cavity, 2-base, 3-resistor, 4-inner conductor, 5-heat sink, 501-ridge, 502-ventilation groove, 6-printed board, 7-thread sleeve, 8-sealing ring, 9-snap ring, 10-insulator, 11-connecting part.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the present invention provides a technical solution:
referring to fig. 1, a novel load includes a load cavity 1, a base 2, a resistor 3 and an inner conductor 4 are sequentially installed in the load cavity 1, and heat dissipation devices 5 are symmetrically installed on two sides of the load cavity 1;
the base 2 is arranged at one end of the load cavity 1, and an installation groove is formed in the base 2;
a first end face of the resistor 3 is installed in the installation groove, and the other end face of the resistor 3 is provided with a printed board 6 in an attaching mode;
one end of the inner conductor 4 penetrates through the printed board 6 to be connected with the other end of the resistor 3, and the other end of the inner conductor 4 is installed at the other end of the load cavity 1 through a sealing assembly.
The utility model discloses the above structure of load, each part connects gradually, installs compactly in load cavity 1 for the load possesses less size.
Referring to fig. 1, the sealing assembly includes a threaded sleeve 7, a sealing ring 8 and a snap ring 9, the sealing ring 8 is sleeved on the other end of the inner conductor 4, the snap ring 9 is sleeved on an outer layer of the sealing ring 8, an insulator 10 is sleeved on an adjacent position of the other end of the inner conductor 4, a connecting portion 11 is sleeved on an outer layer of the insulator 10, and an end portion of the threaded sleeve 7 is clamped on the connecting portion 11 through the snap ring 9.
The utility model discloses the above structure of load for simple to operate can directly weld the installation.
Referring to fig. 2, the heat dissipation device 5 is a heat dissipation housing, the heat dissipation housing is provided with a plurality of protruding ridges 501, and a plurality of ventilation grooves 502 are formed between the plurality of protruding ridges 501 in a staggered manner.
The utility model discloses the abrupt edge 501 sets spatial structure to and has increased radiating area, and the air channel 502 has accelerated radiating speed, optimizes the heat dispersion of load, strengthens the reliability of product, and its resistance 3's heat can be rather than base 2 that the tight fit is connected and transmit the heat dissipation shell along printing board 6 and dispel the heat to guaranteed the heat dissipation of radio frequency load, prevented that resistance 3 from burning out because of the heat accumulation.
Preferably, the heat dissipation shell is made of an aluminum alloy material, and an outer surface layer of the heat dissipation shell is provided with an anti-oxidation layer of 0.5-0.6 um. Therefore, the heat inside the solar cell can be effectively absorbed through the oxide layer during heat dissipation, and then the heat is dissipated to the air, and the heat dissipation speed is increased.
Preferably, the resistor 3 is a beryllium oxide resistor 3, a novel composite resistor 3 paste of beryllium oxide is used, and a high-frequency integrated circuit is formed by sintering by adopting a thick-film circuit printing process, so that the resistor 3 can meet the high-frequency requirement.
Preferably, an outer conductor is connected to the other end of the inner conductor 4.
Preferably, the outer conductor is made of brass plated ternary alloy, and the inner conductor 4 is made of beryllium bronze silver plated material.
The materials can ensure the stable performance of the load and improve the reliability, thereby ensuring that the integrity of the product can meet the design requirement.
Preferably, the load cavity 1 shell is made of aluminum alloy material, selects aluminum alloy (6061), has low density, high strength and good plasticity, has excellent heat conductivity and corrosion resistance, selects aluminum alloy in view of the characteristics, not only can mill a complicated designed shape through CNC, but also ensures the carrier requirement of microwave transmission, has high conductivity and heat dispersion, adopts CNC precision machining mode, and greatly improves the smoothness and roughness of the transmission surface of the product performance.
The utility model discloses an electrical property technical indicator of load is shown as following 1.1:
TABLE 1.1 loaded electrical Property index Table
The utility model discloses a load can realize third-order intermodulation, and the scope of intermodulation value is for being less than or equal to-120 dBc, and this load possesses less size to can realize higher power performance, frequency band response range broad has the wide operating temperature scope of-55 ℃ - +150 ℃, and the mean value power can reach more than 200W, is fit for being used for the application scenario of high power load.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. A novel load, comprising a load chamber (1), characterized in that: a base (2), a resistor (3) and an inner conductor (4) are sequentially arranged in the load cavity (1), and heat dissipation devices (5) are symmetrically arranged on two sides of the load cavity (1);
the base (2) is arranged at one end of the load cavity (1), and an installation groove is formed in the base (2);
a first end face of the resistor (3) is installed in the installation groove, and the other end face of the resistor (3) is attached with a printed board (6);
one end of the inner conductor (4) penetrates through the printed board (6) to be connected with the other end of the resistor (3), and the other end of the inner conductor (4) is installed at the other end of the load cavity (1) through a sealing assembly.
2. The novel load according to claim 1, characterized in that: seal assembly includes swivel nut (7), sealing washer (8) and snap ring (9), sealing washer (8) cover is established the other end of inner conductor (4), snap ring (9) cup joint the skin at sealing washer (8), the adjacent department cover of the other end of inner conductor (4) is equipped with insulator (10), insulator (10) outer cover is equipped with connecting portion (11), the tip of swivel nut (7) pass through snap ring (9) joint in on connecting portion (11).
3. The novel load according to claim 1, characterized in that: the heat dissipation device (5) is a heat dissipation shell, the heat dissipation shell is provided with a plurality of protruding edges (501), and a plurality of ventilation grooves (502) are formed between the protruding edges (501) in a staggered mode.
4. The novel load according to claim 3, characterized in that: the heat dissipation shell is made of an aluminum alloy material, and an anti-oxidation layer of 0.5-0.6 um is arranged on the outer surface layer of the heat dissipation shell.
5. The novel load according to claim 1, characterized in that: the resistor (3) is a beryllium oxide resistor (3).
6. The novel load according to claim 1, characterized in that: the other end of the inner conductor (4) is connected with an outer conductor.
7. The novel load according to claim 6, characterized in that: the outer conductor is made of brass plated ternary alloy, and the inner conductor (4) is made of beryllium bronze silver plated material.
8. The novel load according to claim 1, characterized in that: the load cavity (1) shell is made of aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921368281.0U CN210272621U (en) | 2019-08-21 | 2019-08-21 | Novel load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921368281.0U CN210272621U (en) | 2019-08-21 | 2019-08-21 | Novel load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272621U true CN210272621U (en) | 2020-04-07 |
Family
ID=70017933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921368281.0U Active CN210272621U (en) | 2019-08-21 | 2019-08-21 | Novel load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272621U (en) |
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2019
- 2019-08-21 CN CN201921368281.0U patent/CN210272621U/en active Active
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