Frequency modulation wave trap

Abstract

The utility model discloses a frequency modulation wave trap, which comprises a shell module and a wave trapping module, the wave trapping module is arranged in the shell module, the shell module comprises a base, a top cover and a front plate, the top cover and the front plate are both arranged on the base, the base is provided with a bottom plate, a first side plate and a second side plate which are integrally formed, and the first side plate and the second side plate are arranged on the base. The first side plate and the second side plate are located on the two sides of the bottom plate, and each of the first side plate and the second side plate is provided with a first limiting block, a second limiting block, a third limiting block, a first clamping hole part, a second clamping hole part and a third clamping hole part. According to the frequency modulation wave trap disclosed by the utility model, the base, the top cover and the front plate are linked, and the limiting blocks, the clamping hole parts, the limiting grooves, the buckles and other structures are matched, so that the frequency modulation wave trap can be quickly disassembled and assembled when a circuit board breaks down, and has the advantages of stable structure, good heat dissipation effect, high practicability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of notch filters, and particularly relates to a frequency modulation notch filter. Background Art

[0002] A notch filter is a special type of band-stop filter designed to achieve significant attenuation of signals at specific frequencies while allowing signals at other frequencies to pass through. Such filters are widely used to suppress interference signals at specific frequencies. Many of the existing notch filter housings are of an integral structure, which is inconvenient for disassembly, repair, and replacement when there is a fault in the internal circuit board, and has poor heat dissipation effect, and it is easy to affect the working quality during long-term operation.

[0003] Therefore, in view of the above problems, further improvements are made. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a frequency modulation notch filter, which is linked by a base, a top cover, and a front panel, and through the cooperation of structures such as a limiting block, a card hole part, a limiting groove, and a buckle, it can be quickly disassembled and assembled when there is a fault in the circuit board, and has the advantages of stable structure, good heat dissipation effect, and high practicability.

[0005] To achieve the above object, the utility model provides a frequency modulation notch filter, including a housing module and a notch module, wherein the notch module is built in the housing module, and:

[0006] The housing module includes a base, a top cover, and a front panel, and the top cover and the front panel are both installed on the base, and:

[0007] The base is provided with an integrally formed bottom plate, a first side plate, and a second side plate. The first side plate and the second side plate are located on both sides of the bottom plate. The first side plate and the second side plate are both provided with a first limiting block, a second limiting block, a third limiting block, a first card hole part, a second card hole part, and a third card hole part. The first card hole part is located between the first limiting block and the second limiting block, the second card hole part is located between the second limiting block and the third limiting block, and the third card hole part is located below the third limiting block;

[0008] The top cover is provided with an integrally formed top plate and a rear plate. Both sides of the top plate are provided with a first limiting groove, a second limiting groove, a third limiting groove, a first hook, and a second hook. The first limiting block is installed in the first limiting groove, the second limiting block is installed in the second limiting groove, and the third limiting block is installed in the third limiting groove. The first hook is installed in the first card hole part and the second hook is installed in the second card hole part;

[0009] On both sides of the front panel, a third catch and a fourth catch are respectively provided, and the front panel is further provided with a first installation area, a second installation area, a third installation area, a fourth installation area, and a fifth installation area. The third catch is installed in the third catch hole part of the first side plate, and the fourth catch is installed in the third catch hole part of the second side plate;

[0010] The notch module includes a circuit board and a first frequency modulation terminal, a second frequency modulation terminal, a first connection end, a second connection end, a third connection end, and a fourth connection end installed on the circuit board. The first frequency modulation terminal is installed in the first installation area, the second frequency modulation terminal is installed in the second installation area, the first connection end is installed in the third installation area, the second connection end is installed in the fourth installation area, and the third connection end and the fourth connection end are both installed in the fifth installation area.

[0011] As a further preferred technical solution of the above technical solution, a plurality of heat dissipation holes (for facilitating heat dissipation) are provided on both the first side plate and the second side plate.

[0012] As a further preferred technical solution of the above technical solution, a plurality of heat dissipation ribs (for improving heat dissipation efficiency) are provided on the outer side of the top plate, and a first installation hole part, a second installation hole part, a third installation hole part, and a fourth installation hole part are provided on the inner side of the top plate.

[0013] As a further preferred technical solution of the above technical solution, the circuit board is provided with a first limiting post, a second limiting post, a third limiting post, and a fourth limiting post.

[0014] As a further preferred technical solution of the above technical solution, the top end of the first limiting post is installed in the first installation hole part, the top end of the second limiting post is installed in the second installation hole part, the top end of the third limiting post is installed in the third installation hole part, and the top end of the fourth limiting post is installed in the fourth installation hole part (so that the circuit board is stably installed between the base and the top cover). Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a frequency modulation notch filter of the present utility model.

[0016] Figure 2 is a schematic structural diagram of the base of a frequency modulation notch filter of the present utility model.

[0017] Figure 3 is a schematic structural diagram of the top cover of a frequency modulation notch filter of the present utility model.

[0018] Figure 4 is a schematic structural diagram of the front panel of a frequency modulation notch filter of the present utility model.

[0019] Figure 5 It is a schematic structural diagram of a notch module of a frequency modulation notch filter of the present utility model.

[0020] The reference numerals include: 100, base; 110, bottom plate; 120, first side plate; 121, first limiting block; 122, second limiting block; 123, third limiting block; 124, first card hole part; 125, second card hole part; 126, third card hole part; 127, heat dissipation hole; 130, second side plate; 200, top cover; 210, top plate; 211, first limiting groove; 212, second limiting groove; 213, third limiting groove; 214, first hook; 215, second hook; 216, heat dissipation rack; 2171, first mounting hole part; 2172, second mounting hole part; 2173, third mounting hole part; 2174, fourth mounting hole part; 220, rear plate; 300, front plate; 310, third hook; 320 fourth hook; 330, first mounting area; 340, second mounting area; 350, third mounting area; 360, fourth mounting area; 370, fifth mounting area; 400, notch module; 410, circuit board; 411, first limiting post; 412, second limiting post; 413, third limiting post; 414, fourth limiting post; 420, first frequency modulation terminal; 430, second frequency modulation terminal; 440, first connection end; 450, second connection end; 460, third connection end; 470, fourth connection end. Specific embodiments

[0021] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0022] The present utility model discloses a frequency modulation notch filter. The specific embodiments of the utility model will be further described below in conjunction with the preferred embodiments.

[0023] In the embodiments of the present utility model, those skilled in the art should note that the circuit boards and the like involved in the present utility model can be regarded as the prior art.

[0024] Preferred embodiment.

[0025] As Figures 1-5 shown, the present utility model discloses a frequency modulation notch filter, including a housing module and a notch module 400, wherein the notch module is built in the housing module, and:

[0026] The housing module includes a base 100, a top cover 200, and a front panel 300. The top cover 200 and the front panel 300 are both installed on the base 100, where:

[0027] The base 100 is provided with an integrally formed bottom plate 110, a first side plate 120, and a second side plate 130. The first side plate 120 and the second side plate 130 are located on both sides of the bottom plate 110. The first side plate 120 and the second side plate 130 are both provided with a first limit block 121, a second limit block 122, a third limit block 123, a first card hole portion 124, a second card hole portion 125, and a third card hole portion 126. The first card hole portion 124 is located between the first limit block 121 and the second limit block 122, the second card hole portion 125 is located between the second limit block 122 and the third limit block 123, and the third card hole portion 126 is located below the third limit block 123.

[0028] The top cover 200 is provided with an integrally formed top plate 210 and a rear plate 220. Both sides of the top plate 210 are provided with a first limit groove 211, a second limit groove 212, a third limit groove 213, a first catch 214, and a second catch 215. The first limit block 121 is installed in the first limit groove 211, the second limit block 122 is installed in the second limit groove 212, and the third limit block 123 is installed in the third limit groove 213. The first catch 214 is installed in the first card hole portion 124, and the second catch 215 is installed in the second card hole portion 125.

[0029] Both sides of the front panel 300 are respectively provided with a third catch 310 and a fourth catch 320. The front panel 300 is further provided with a first installation area 330, a second installation area 340, a third installation area 350, a fourth installation area 360, and a fifth installation area 370. The third catch 310 is installed in the third card hole portion of the first side plate 120, and the fourth catch 320 is installed in the third card hole portion of the second side plate 130.

[0030] The notch module 400 includes a circuit board 410 and a first frequency modulation terminal 420, a second frequency modulation terminal 430, a first connection end 440, a second connection end 450, a third connection end 460, and a fourth connection end 470 installed on the circuit board 410. The first frequency modulation terminal 420 is installed in the first installation area 330, the second frequency modulation terminal 430 is installed in the second installation area 340, the first connection end 440 is installed in the third installation area 350, the second connection end 450 is installed in the fourth installation area 360, and the third connection end 460 and the fourth connection end 470 are both installed in the fifth installation area 370.

[0031] Specifically, a number of heat dissipation holes 127 (for facilitating heat dissipation) are provided on both the first side plate 120 and the second side plate 130.

[0032] More specifically, a number of heat dissipation racks 216 (for improving heat dissipation efficiency) are provided on the outer side of the top plate 210, and a first mounting hole portion 2171, a second mounting hole portion 2172, a third mounting hole portion 2173, and a fourth mounting hole portion 2174 are provided on the inner side of the top plate 210.

[0033] Furthermore, the circuit board 410 is provided with a first limiting post 411, a second limiting post 412, a third limiting post 413, and a fourth limiting post 414.

[0034] Even further, the top end of the first limiting post 411 is mounted in the first mounting hole portion 2171, the top end of the second limiting post 412 is mounted in the second mounting hole portion 2172, the top end of the third limiting post 413 is mounted in the third mounting hole portion 2173, and the top end of the fourth limiting post 414 is mounted in the fourth mounting hole portion 2174 (so that the circuit board is stably mounted between the base and the top cover).

[0035] It is worth mentioning that the technical features such as the circuit board involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, and possible control methods and spatial arrangement methods involved in these technical features, conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0036] For those skilled in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A frequency modulation notch filter, characterized in that, It includes a housing module and a notch module, and the notch module is built in the housing module, where: The housing module includes a base, a top cover and a front panel, and the top cover and the front panel are both installed on the base, where: The base is provided with an integrally formed bottom plate, a first side plate and a second side plate. The first side plate and the second side plate are located on both sides of the bottom plate. The first side plate and the second side plate are both provided with a first limiting block, a second limiting block, a third limiting block, a first card hole part, a second card hole part and a third card hole part. The first card hole part is located between the first limiting block and the second limiting block, the second card hole part is located between the second limiting block and the third limiting block, and the third card hole part is located below the third limiting block; The top cover is provided with an integrally formed top plate and a rear plate. Both sides of the top plate are provided with a first limiting groove, a second limiting groove, a third limiting groove, a first hook and a second hook. The first limiting block is installed in the first limiting groove, the second limiting block is installed in the second limiting groove, and the third limiting block is installed in the third limiting groove. The first hook is installed in the first card hole part and the second hook is installed in the second card hole part; Both sides of the front panel are respectively provided with a third hook and a fourth hook, and the front panel is also provided with a first installation area, a second installation area, a third installation area, a fourth installation area and a fifth installation area. The third hook is installed in the third card hole part of the first side plate and the fourth hook is installed in the third card hole part of the second side plate; The notch module includes a circuit board and a first frequency modulation terminal, a second frequency modulation terminal, a first connection end, a second connection end, a third connection end and a fourth connection end installed on the circuit board. The first frequency modulation terminal is installed in the first installation area and the second frequency modulation terminal is installed in the second installation area. The first connection end is installed in the third installation area and the second connection end is installed in the fourth installation area. The third connection end and the fourth connection end are both installed in the fifth installation area.

2. The frequency modulation notch filter according to claim 1, characterized in that, Both the first side plate and the second side plate are provided with a plurality of heat dissipation holes.

3. A frequency modulation notch filter according to claim 2, characterized in that, The outer side of the top plate is provided with a plurality of heat dissipation racks, and the inner side of the top plate is provided with a first mounting hole part, a second mounting hole part, a third mounting hole part and a fourth mounting hole part.

4. A frequency modulation notch filter according to claim 3, characterized in that, The circuit board is provided with a first limiting post, a second limiting post, a third limiting post and a fourth limiting post.

5. A frequency modulation notch filter according to claim 4, characterized in that, The top end of the first limiting post is installed in the first mounting hole part, the top end of the second limiting post is installed in the second mounting hole part, the top end of the third limiting post is installed in the third mounting hole part, and the top end of the fourth limiting post is installed in the fourth mounting hole part.

Images