Branch type band elimination filter

Abstract

The utility model discloses a column-type band elimination filter, which belongs to the technical field of filters and comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a shell, the inner wall of the shell is fixedly connected with a first heat dissipation plate, the upper surface of the shell is slidably connected with a cover plate, and the upper surface of the cover plate is fixedly connected with a second heat dissipation plate. According to the column-type band elimination filter, limitation on the long plate is relieved through the locking mechanism, meanwhile, the elastic mechanism jacks the second heat dissipation plate, so that the second heat dissipation plate drives the protruding block to be pulled out of the first heat dissipation plate, the effect of convenient disassembly is achieved, the cover plate is prevented from moving horizontally through the locking mechanism, and the service life of the column-type band elimination filter is prolonged. The second heat dissipation plate drives the protruding block to be inserted into the first heat dissipation plate, so that the cover plate is prevented from moving up and down, the effect of rapid installation is achieved, and the problem that the band elimination filter needs to be disassembled and installed through a specific tool, and operation is tedious is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a split-type band-stop filter. Background Art

[0002] A filter is a frequency-selective device that allows specific frequency components in a signal to pass through, thereby greatly attenuating other frequency components. Filters can be divided into low-pass filters, high-pass filters, band-pass filters, and band-stop filters according to their frequency characteristics. Among them, the split-type band-stop filter is a special band-stop filter that achieves a specific frequency band blocking function by connecting multiple filter units in series. Each filter unit can be a separate low-pass filter or high-pass filter. Filters are generally installed on communication base stations, repeaters and other equipment. The frequency-selective function of the filter can filter out interference noise and suppress the passage of signals.

[0003] The existing band-stop filter can adjust the number and arrangement of other electronic components such as internal resonators according to actual needs. After the adjustment is completed, the shell needs to be fixed on the mounting base, generally using bolts or fasteners. When the band-stop filter is damaged and needs to be disassembled and replaced or opened for maintenance, specific tools are required for disassembly and installation, which is cumbersome to operate. In order to solve this technical problem, the utility model proposes a split-type band-stop filter. Utility Model Content

[0004] The main purpose of the utility model is to provide a split-type band-stop filter, which can effectively solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A split-type band-stop filter comprises a base plate, the upper surface of the base plate is fixedly connected to a shell, the inner wall of the shell is fixedly connected to a first heat sink, the upper surface of the shell is slidably connected to a cover plate, the upper surface of the cover plate is fixedly connected to a second heat sink, a side surface of the second heat sink is fixedly connected to a protrusion, the upper surface of the base plate is provided with a locking mechanism, the upper part of the locking mechanism is provided with a long plate, the outer surface of the long plate is fixedly connected to the cover plate, a side surface of the shell is provided with an elastic mechanism, a side surface of the first heat sink is fixedly connected to a heat-conducting ring, the lower surface of the heat-conducting ring is fixedly connected to the base plate, and a filter unit is provided inside the heat-conducting ring.

[0007] Preferably, the locking mechanism comprises a fixing box, the lower surface of which is fixedly connected to the bottom plate, and the inner wall of the fixing box is slidably connected with a clamping block.

[0008] Preferably, one side surface of the clamping block is in contact with the long board, and a first spring is arranged inside the fixing box.

[0009] Preferably, a first spring is fixedly connected to the lower surface of the clamping block, and one end of the first spring away from the clamping block is fixedly connected to the bottom plate.

[0010] Preferably, a long rod is fixedly connected to one side surface of the clamping block, and an outer surface of the long rod is slidably connected to the fixing box.

[0011] Preferably, the elastic mechanism comprises a fixing plate, the lower end of the fixing plate is fixedly connected to the shell, the upper end of the fixing plate is fixedly connected to a round rod, and the outer surface of the round rod is slidably connected to the second heat dissipation plate.

[0012] Preferably, a second spring is sleeved on the outer surface of the round rod, one end of the second spring is fixedly connected to the fixing plate, and the other end of the second spring is in contact with the second heat dissipation plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by setting components such as a locking mechanism and an elastic mechanism, the locking mechanism is first released to limit the long plate, and at the same time the elastic mechanism pushes the second heat sink, so that the second heat sink drives the protrusion to be pulled out of the first heat sink, and then the cover is removed, thereby achieving the effect of easy disassembly. During installation, the locking mechanism is used to prevent the cover from moving horizontally. While the cover moves, the second heat sink drives the protrusion to be inserted into the inside of the first heat sink, thereby preventing the cover from moving up and down, achieving the effect of quick installation, thereby solving the problem that when the band-stop filter is damaged and needs to be disassembled and replaced or opened for maintenance, specific tools are required for disassembly and installation, which is relatively cumbersome to operate.

[0015] 2. In the utility model, by providing components such as a heat-conducting ring and a first heat sink, in actual use, the heat generated by the operation of the filter unit is transferred to the first heat sink through the heat-conducting ring, and the contact area with the air is increased by multiple first heat sinks, thereby increasing the heat dissipation effect. By providing a second heat sink above the filter unit, the heat dissipation effect is further increased to prevent the filter unit from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a split-type band-stop filter of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of an elastic mechanism in a split-type band-stop filter of the utility model;

[0018] Figure 3It is a three-dimensional structural schematic diagram of a heat-conducting ring in a split-type band-stop filter of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of a locking mechanism in a split-type band-stop filter of the utility model;

[0020] Figure 5 This utility model is a split-type band-stop filter Figure 4 A schematic diagram of the enlarged structure in the middle.

[0021] In the figure: 1, bottom plate; 2, shell; 3, first heat sink; 4, cover plate; 5, second heat sink; 6, bump; 7, locking mechanism; 701, fixing box; 702, block; 703, first spring; 704, long rod; 8, long plate; 9, elastic mechanism; 901, fixing plate; 902, round rod; 903, second spring; 10, thermal conductive ring; 11, filter unit. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5 As shown, a split-type band-stop filter includes a base plate 1, which is provided with through holes and can be fixed to external equipment by bolts, a shell 2 is fixedly connected to the upper surface of the base plate 1, input and output connectors are respectively provided on both sides of the shell 2, and eight cavities are provided inside the shell 2, and a first heat sink 3 is fixedly connected to the inner wall of the shell 2. There are eight first heat sinks 3, which penetrate the shell 2 respectively, and the inside of the channel cavity, a cover plate 4 is slidably connected to the upper surface of the shell 2, and a second heat sink 5 is fixedly connected to the upper surface of the cover plate 4. There are four second heat sinks 5, which are U-shaped, and the second heat sink 5 and the first heat sink 3 are both made of copper, and a plurality of concave strips are provided on the outer surface to increase the contact area with the air and increase the heat dissipation effect.

[0024] A protrusion 6 is fixedly connected to one side of the second heat dissipation plate 5, a locking mechanism 7 is provided on the upper surface of the bottom plate 1, the number of the locking mechanisms 7 is two, a long plate 8 is provided on the upper part of the locking mechanism 7, the bottom of the long plate 8 is arc-shaped and smoothed, the locking mechanism 7 includes a fixing box 701, the lower surface of the fixing box 701 is fixedly connected to the bottom plate 1, a block 702 is slidably connected to the inner wall of the fixing box 701, one side of the block 702 is provided with an inclined surface, one side of the block 702 is in contact with the long plate 8, and the interior of the fixing box 701 A first spring 703 is provided, the lower surface of the block 702 is fixedly connected to the first spring 703, one end of the first spring 703 away from the block 702 is fixedly connected to the bottom plate 1, a side surface of the block 702 is fixedly connected to a long rod 704, the outer surface of the long rod 704 is slidably connected to the fixed box 701, two cylinders are fixed to one side surface of the long rod 704, the two cylinders are respectively fixed to the two blocks 702, and the cylinders are used to facilitate sliding on the fixed box 701, and the outer surface of the long plate 8 is fixedly connected to the cover plate 4.

[0025] An elastic mechanism 9 is provided on one side of the shell 2, and there are two elastic mechanisms 9. The elastic mechanism 9 includes a fixing plate 901, the lower end of the fixing plate 901 is fixedly connected to the shell 2, and the upper end of the fixing plate 901 is fixedly connected to a round rod 902, the outer surface of the round rod 902 is slidably connected to the second heat sink 5, the round rod 902 is inserted into the interior of the second heat sink 5, and the outer surface of the round rod 902 is sleeved with a second spring 903, one end of the second spring 903 is fixedly connected to the fixing plate 901 to prevent the second spring 903 from falling off, and the other end of the second spring 903 is in contact with the second heat sink 5, a heat conducting ring 10 is fixedly connected to one side of the first heat sink 3, the lower surface of the heat conducting ring 10 is fixedly connected to the bottom plate 1, and a filter unit 11 is provided inside the heat conducting ring 10, and the material of the heat conducting ring 10 is copper, so as to better transfer heat.

[0026] It should be noted that in actual use, the device is fixed to the external equipment through the base plate 1, and the heat generated by the filter unit 11 is transferred to the first heat sink 3 through the heat conductive ring 10. The contact area with the air is increased by multiple first heat sinks 3, thereby increasing the heat dissipation effect. At the same time, the second heat sink 5 is arranged above the filter unit 11, so as to further increase the heat dissipation effect, thereby achieving the effect of increasing heat dissipation to prevent the filter unit 11 from being damaged.

[0027] When the filter unit 11 needs to be repaired or replaced, the long rod 704 is pushed downward, and the long rod 704 drives the two blocks 702 to move downward. The blocks 702 squeeze the first spring 703. When the upper end of the block 702 passes over the lower end of the long plate 8 downward, the block 702 no longer restricts the long plate 8, and the second spring 903 pushes the second heat sink 5, so that the cover plate 4 and the long plate 8 move away from the fixed plate 901. At the same time, the second heat sink 5 drives the protrusion 6 to be pulled out of the first heat sink 3, and then the cover plate 4 is removed, which achieves the effect of easy disassembly. After the maintenance is completed, the control cover plate 4 drives the second heat sink 5 to be placed on the first One side of the heat sink 3 pushes the cover plate 4, and the cover plate 4 drives the long plate 8 to squeeze the inclined surface of the block 702, so that the block 702 squeezes the first spring 703 downward to move. When the long plate 8 passes over the block 702, the first spring 703 rebounds and drives the block 702 to clamp the long plate 8, thereby preventing the cover plate 4 from moving horizontally. While the cover plate 4 moves, the second heat sink 5 drives the protrusion 6 to be inserted into the inside of the first heat sink 3, thereby preventing the cover plate 4 from moving up and down, achieving the effect of quick installation. At the same time, the second heat sink 5 at the edge squeezes the second spring 903, so that the round rod 902 is inserted into the second heat sink 5, which is convenient for disassembly next time.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A split-type band-stop filter, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a shell (2), the inner wall of the shell (2) is fixedly connected to a first heat sink (3), the upper surface of the shell (2) is slidably connected to a cover plate (4), the upper surface of the cover plate (4) is fixedly connected to a second heat sink (5), one side of the second heat sink (5) is fixedly connected to a protrusion (6), the upper surface of the base plate (1) is provided with a locking mechanism (7), the upper part of the locking mechanism (7) is provided with a long plate (8), the outer surface of the long plate (8) is fixedly connected to the cover plate (4), one side of the shell (2) is provided with an elastic mechanism (9), one side of the first heat sink (3) is fixedly connected to a heat conducting ring (10), the lower surface of the heat conducting ring (10) is fixedly connected to the base plate (1), and a filter unit (11) is provided inside the heat conducting ring (10).

2. A split-type band-stop filter according to claim 1, characterized in that: The locking mechanism (7) comprises a fixing box (701), the lower surface of the fixing box (701) being fixedly connected to the bottom plate (1), and the inner wall of the fixing box (701) being slidably connected to a clamping block (702).

3. A split-type band-stop filter according to claim 2, characterized in that: One side surface of the clamping block (702) is in contact with the long plate (8), and a first spring (703) is arranged inside the fixing box (701).

4. A split-type band-stop filter according to claim 3, characterized in that: The lower surface of the clamping block (702) is fixedly connected to the first spring (703), and one end of the first spring (703) away from the clamping block (702) is fixedly connected to the bottom plate (1).

5. A split-type band-stop filter according to claim 4, characterized in that: A long rod (704) is fixedly connected to one side of the clamping block (702), and an outer surface of the long rod (704) is slidably connected to the fixing box (701).

6. A split-type band-stop filter according to claim 1, characterized in that: The elastic mechanism (9) comprises a fixing plate (901), the lower end of the fixing plate (901) being fixedly connected to the housing (2), the upper end of the fixing plate (901) being fixedly connected to a round rod (902), and the outer surface of the round rod (902) being slidably connected to the second heat dissipation plate (5).

7. A split-type band-stop filter according to claim 6, characterized in that: A second spring (903) is sleeved on the outer surface of the round rod (902); one end of the second spring (903) is fixedly connected to the fixing plate (901); and the other end of the second spring (903) is in contact with the second heat dissipation plate (5).

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