Filter based on very high frequency adjustment

Abstract

The utility model discloses a filter based on very high frequency adjustment, comprising an inner housing and a function module, both sides of the inner housing are provided with installation chutes, the function module is inserted and installed in the installation chutes, the outer side of the inner housing is fixedly provided with a plurality of heat radiation fins in an array, and the outer side of the inner housing is sleeved with an air duct pipe. The function module is fixedly provided with a plurality of heat dissipation blocks, one end of the air duct pipe is fixedly provided with a heat dissipation fan, the side face of the inner shell is provided with an interface window, the interface window penetrates through the heat dissipation fins and the air duct pipe, the interface window is fixedly connected with a sealing cover through bolts, and the end, away from the heat dissipation fan, of the inner shell is fixedly connected with an adjusting end cover. According to the utility model, the radiating fins and the air duct pipes are arranged to form a plurality of ventilation ducts on the outer side of the inner shell, the cooling fan is used for cooling the outer side of the inner shell through flowing air, and airflow does not enter the inner side of the inner shell, so that the influence of dust accumulation on the operation of the functional module is reduced while the cooling is performed.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters and relates to a filter based on very high frequency regulation. Background Art

[0002] The filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter out the frequency point of a specific frequency in the power line or the frequency outside the frequency point. VHF is a frequency band between high frequency and ultra-high frequency. Usually the filter is installed in a metal shell. To ensure the operation of the filter circuit, the metal shell is a sealed dustproof shell. However, when the filter is running, a certain amount of heat will be generated. The ambient temperature will affect the frequency response drift of the filter and have a certain impact on the suppression of the filter. It is difficult to dissipate heat in a sealed dustproof shell. Utility Model Content

[0003] In view of the above problems, the utility model proposes a filter based on very high frequency regulation, which well solves the problems in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A filter based on very high frequency regulation, comprising:

[0006] An inner shell, both sides of which are provided with mounting slide grooves;

[0007] A functional module, the functional module is plugged and installed in the installation slot;

[0008] Heat dissipation fins, a plurality of heat dissipation fins are fixedly installed in an array on the outer side of the inner shell;

[0009] An air duct pipe, wherein the air duct pipe is sleeved on the outer side of the inner shell, and the heat dissipation fins are fixedly connected to the inner side of the air duct pipe;

[0010] A heat sink block, wherein a plurality of the heat sink blocks are fixedly mounted on the functional module, and one end of the heat sink block away from the functional module is attached to the inner wall of the inner shell;

[0011] A cooling fan, wherein the cooling fan is fixedly mounted at one end of the air duct, and an end of the inner shell close to the cooling fan is a closed end;

[0012] An interface window, the interface window is opened on the side of the inner shell, the interface window passes through the heat dissipation fins and the air duct, and the interface window is bolted and fixedly connected with a closing cover;

[0013] An adjustment end cover is fixedly connected to an end of the inner shell away from the heat dissipation fan.

[0014] Optionally, an internal circulation fan is fixedly installed in the inner shell.

[0015] Optionally, the adjustment end cover is fixedly mounted with a mounting ring, the inner shell is inserted into the inner side of the mounting ring, a sealing gasket is arranged at the bottom of the mounting ring, and the inner shell is bolted to the adjustment end cover.

[0016] Optionally, a knob ring is fixedly provided at one end of the adjustment end cover away from the inner shell body, a frequency modulation knob is rotatably provided on the outside of the knob ring, a sealed bearing is provided between the knob ring and the frequency modulation knob, a connecting shaft that passes through the adjustment end cover is fixedly connected to the center of the frequency modulation knob, and the connecting shaft is plugged into a connection function module.

[0017] Optionally, one end of the mounting slot close to the adjustment end cover is threadedly connected to a fixing screw, and the fixing screw is used to fix the functional module.

[0018] Optionally, an air supply duct is fixedly installed in the inner shell, the input end of the air supply duct is connected to the output end of the internal circulation fan, and the output end of the air supply duct is located at an end of the inner shell away from the internal circulation fan.

[0019] Optionally, the adjustment end cover is provided with a display window, and the display window glass is sealed.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] By arranging heat dissipation fins and air ducts, multiple ventilation ducts are formed on the outside of the inner shell, and the heat dissipation fan cools the outside of the inner shell by flowing air. The airflow does not enter the inside of the inner shell, thereby reducing the impact of dust accumulation on the operation of the functional module while cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of another perspective of an embodiment of the utility model;

[0024] Figure 3 yes Figure 1 A magnified schematic diagram of part A;

[0025] Figure 4 yes Figure 1 Schematic diagram of the enlarged portion B.

[0026] Reference numerals: 1, inner housing; 11, mounting slot; 111, fixing screw; 12, interface window; 13, adjustment end cover; 131, mounting ring; 132, knob ring; 133, frequency knob; 134, connecting shaft; 135, display window;

[0027] 2. Functional module; 21. Heat sink;

[0028] 31. Cooling fins; 32. Air duct; 33. Cooling fan; 34. Internal circulation fan; 341. Air supply duct. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 and Figure 2 , is a filter based on very high frequency regulation disclosed in an embodiment of the utility model, comprising an inner shell 1 and a functional module 2, both sides of the inner shell 1 are provided with installation slide grooves 11, the functional module 2 is plugged and installed in the installation slide grooves 11, a plurality of heat dissipation fins 31 are fixedly installed in an array on the outer side of the inner shell 1, an air duct tube 32 is sleeved on the outer side of the inner shell 1, the heat dissipation fins 31 are fixedly connected to the inner side of the air duct tube 32, a plurality of heat dissipation blocks 21 are fixedly installed on the functional module 2, the heat dissipation block 21 is attached to the inner wall of the inner shell 1 at one end away from the functional module 2, a heat dissipation fan 33 is fixedly installed at one end of the air duct tube 32, the end of the inner shell 1 close to the heat dissipation fan 33 is a closed end, an interface window 12 is opened on the side of the inner shell 1, the interface window 12 penetrates the heat dissipation fins 31 and the air duct tube 32, the interface window 12 is fixedly connected with a closing cover by bolts, and the end of the inner shell 1 away from the heat dissipation fan 33 is fixedly connected with an adjustment end cover 13.

[0031] Specifically, the functional module 2 is sealed inside the inner shell 1 through the inner shell 1, the interface window 12 closing cover and the adjustment end cover 13, and the heat dissipation fins 31 and the air duct tube 32 are installed outside the inner shell 1. The heat dissipation fins 31 and the air duct tube 32 form a plurality of ventilation ducts on the outside of the inner shell 1. A heat dissipation fan 33 is arranged at the end of the air duct tube 32. The heat dissipation fan 33 is used to make the air in the ventilation duct flow, so as to exchange heat and cool the inner shell 1, and the heat dissipation block 21 is installed on the main heating element of the functional module 2 to accelerate heat conduction.

[0032] In this way, multiple ventilation ducts are formed on the outside of the inner shell 1 by arranging the heat dissipation fins 31 and the air duct tubes 32, and the heat dissipation fan 33 is used to cool the outside of the inner shell 1 by flowing air, and the airflow does not enter the inside of the inner shell 1, thereby reducing the influence of dust accumulation on the operation of the functional module 2 while cooling.

[0033] In some feasible embodiments, the inner shell 1 is a rectangular shell, the heat sink fins 31 are rectangular sheets, the heat sink block 21 is a rectangular block, the inner shell 1, the heat sink fins 31 and the heat sink block 21 should all be made of metal parts with good thermal conductivity, the functional module 2 is a filter circuit module, the adjustment end cover 13 is used to install the adjustment knob part and the display parameter part, and the interface window 12 is the interface position for input and output and power supply.

[0034] As a specific implementation of a filter based on very high frequency regulation provided by the utility model, please refer to Figure 1 and Figure 3 An internal circulation fan 34 is fixedly installed in the inner shell 1.

[0035] In general, the cooling fan 33 runs outside the inner shell 1 and will not affect the gas flow inside the inner shell 1. By setting the inner circulation fan 34, the air inside the inner shell 1 circulates, reducing the accumulation of heat at the heating element position and further improving the cooling efficiency.

[0036] Furthermore, an air supply pipe 341 is fixedly installed in the inner shell 1 , and the input end of the air supply pipe 341 is connected to the output end of the inner circulation fan 34 , and the output end of the air supply pipe 341 is located at an end of the inner shell 1 away from the inner circulation fan 34 .

[0037] It should be understood that the internal circulation fan 34 is used for air circulation inside the inner shell 1. By providing the air supply pipe 341, the air output by the internal circulation fan 34 can reach the end of the inner shell 1 away from the internal circulation fan 34 through the air supply pipe 341, which is conducive to forming an overall circulation flow and reducing the possibility of air flow being difficult to flow at a long distance.

[0038] In some feasible embodiments, the internal circulation fan 34 is installed at a top corner of one end of the inner shell 1, and the air supply pipe 341 is a rectangular pipe.

[0039] As a specific implementation of a filter based on very high frequency regulation provided by the utility model, please refer to Figure 1 and Figure 2 The adjusting end cover 13 is fixedly mounted with a mounting ring 131 , the inner housing 1 is inserted into the inner side of the mounting ring 131 , a sealing gasket is arranged at the bottom of the mounting ring 131 , and the inner housing 1 is bolted to the adjusting end cover 13 .

[0040] It should be understood that by providing the mounting ring 131, the inner shell 1 is inserted into the inner side of the mounting ring 131 during installation, so as to facilitate alignment of the inner shell 1 at the installation position of the adjustment end cover 13, so as to facilitate alignment and connection between the functional part on the adjustment end cover 13 and the functional module 2, and to provide a sealing gasket for dustproof sealing.

[0041] In some feasible embodiments, a connecting ear with a threaded hole is provided at the outer top corner of the inner shell 1, and the adjustment end cover 13 is fixedly connected to the connecting ear by bolts.

[0042] As a specific implementation of a filter based on very high frequency regulation provided by the utility model, please refer to Figure 1 and Figure 3 A knob ring 132 is fixedly provided at one end of the adjustment end cover 13 away from the inner shell body 1, a frequency modulation knob 133 is rotatably provided on the outer side of the knob ring 132, a sealed bearing is provided between the knob ring 132 and the frequency modulation knob 133, and a connecting shaft 134 that passes through the adjustment end cover 13 is fixedly connected to the center of the frequency modulation knob 133, and the connecting shaft 134 is plugged into the connection function module 2.

[0043] It should be understood that by providing a sealed bearing between the frequency modulation knob 133 and the adjustment end cover 13, the sealing performance of the frequency modulation knob 133 is improved, and the dustproof performance is further improved.

[0044] In some feasible embodiments, the sealed bearing, the frequency adjustment knob 133 and the knob ring 132 are all interference fit.

[0045] Furthermore, the adjustment end cover 13 is provided with a display window 135 , and the display window 135 is glass-sealed.

[0046] It should be understood that by sealing the display window 135 portion with glass, the dust-proof property is further improved.

[0047] As a specific implementation of a filter based on very high frequency regulation provided by the utility model, please refer to Figure 1 and Figure 4 One end of the mounting slide groove 11 close to the adjustment end cover 13 is threadedly connected to a fixing screw 111 , and the fixing screw 111 is used to fix the functional module 2 .

[0048] It should be understood that by providing the fixing screws 111, after the functional module is inserted, the fixing screws 111 are used to fix the functional module 2, thereby reducing the shaking of the functional module 2, thereby reducing the possibility of disconnection of the functional module 2 and the adjustment end cover 13 and the interface window 12 due to vibration.

[0049] In some feasible embodiments, a threaded hole is opened on the end face of the installation slot 11, and the nut presses the functional module 2 after the fixing screw 111 is installed. In order to tighten the fixing screw 111, the length of the installation slot 11 should be slightly smaller than the length of the insertion part of the functional module 2.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter based on very high frequency regulation, characterized in that, include: An inner shell, both sides of which are provided with mounting slide grooves; A functional module, the functional module is plugged and installed in the installation slot; Heat dissipation fins, a plurality of heat dissipation fins are fixedly installed in an array on the outer side of the inner shell; An air duct pipe, wherein the air duct pipe is sleeved on the outer side of the inner shell, and the heat dissipation fins are fixedly connected to the inner side of the air duct pipe; A heat sink block, wherein a plurality of the heat sink blocks are fixedly mounted on the functional module, and one end of the heat sink block away from the functional module is attached to the inner wall of the inner shell; A cooling fan, wherein the cooling fan is fixedly mounted at one end of the air duct, and an end of the inner shell close to the cooling fan is a closed end; An interface window, the interface window is opened on the side of the inner shell, the interface window passes through the heat dissipation fins and the air duct, and the interface window is bolted and fixedly connected with a closing cover; An adjustment end cover is fixedly connected to an end of the inner shell away from the heat dissipation fan.

2. A filter based on very high frequency regulation according to claim 1, characterized in that: An inner circulation fan is fixedly installed in the inner shell.

3. A filter based on very high frequency regulation according to claim 1, characterized in that: The adjusting end cover is fixedly mounted with a mounting ring, the inner housing is inserted into the inner side of the mounting ring, a sealing gasket is arranged at the bottom of the mounting ring, and the inner housing is bolted to the adjusting end cover.

4. A filter based on very high frequency regulation according to claim 1, characterized in that: A knob ring is fixedly provided at one end of the adjustment end cover away from the inner shell body, a frequency modulation knob is rotatably provided on the outer side of the knob ring, a sealed bearing is provided between the knob ring and the frequency modulation knob, a connecting shaft that passes through the adjustment end cover is fixedly connected to the center of the frequency modulation knob, and the connecting shaft is plugged into a connection function module.

5. A filter based on very high frequency regulation according to claim 1, characterized in that: One end of the installation slot close to the adjustment end cover is threadedly connected to a fixing screw, and the fixing screw is used to fix the functional module.

6. A filter based on very high frequency regulation according to claim 2, characterized in that: An air supply pipe is fixedly installed in the inner shell, the input end of the air supply pipe is connected to the output end of the inner circulation fan, and the output end of the air supply pipe is located at an end of the inner shell away from the inner circulation fan.

7. A filter based on very high frequency regulation according to claim 4, characterized in that: The adjustment end cover is provided with a display window, and the display window glass is sealed.

Images