Anti-interference signal isolator

Abstract

The utility model provides an anti-interference signal isolator, which comprises a mounting plate and a shell, one side of the mounting plate is fixedly connected with an isolator body through screws, the inner wall of the shell is respectively provided with an air inlet and an air outlet, the inner walls of the air inlet and the air outlet are respectively provided with a filter screen, the shell is provided with a mounting mechanism, and the mounting mechanism is fixedly connected with the isolator body through screws. The inner wall of the air inlet is rotatably connected with a fan through a support, the mounting mechanism is used for dismounting the filter screen and comprises a limiting hole formed in the inner wall of the filter screen, the inner wall of the shell is slidably connected with a limiting rod, the top of the limiting rod is fixedly connected with a connecting block, and the top of the connecting block is fixedly connected with a spring. The mounting mechanism further comprises a sliding block fixed to one side of the connecting block. According to the anti-interference signal isolator provided by the utility model, the problem that the filter screen is inconvenient to disassemble when the filter screen needs to be cleaned or replaced in the later period due to the fact that the shells of some existing anti-interference signal isolators are fixedly connected with one another is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of signal isolators, in particular to an anti-interference signal isolator. Background Art

[0002] A signal isolator is a signal isolation device that converts input single-channel or dual-channel current or voltage signals into output isolated single-channel or dual-channel linear current or voltage signals, and improves the electrical isolation performance between input, output and power supply. Signals may encounter various interferences during transmission. To ensure signal stability, it is particularly important to use a signal isolator.

[0003] According to the utility model patent with announcement number: CN215732133U, an anti-interference isolator is disclosed, which relates to the technical field of isolators, and its beneficial effects are: by setting a shell, opening the shell door and placing the isolator inside the shell, the shell protects the isolator and reduces the possibility of interference of external factors on the isolator, and multiple isolators are placed on the object frame in turn, and by setting a partition, the partition is moved horizontally so that the partition and the isolator are in contact, and the partition blocks two adjacent isolators to prevent the two isolators from affecting each other's work. Compared with the prior art, the structure is simple, the isolator is easily interfered by external factors when in use, and the isolator has a long service life.

[0004] Although the above technology can reduce the interference of external factors on the isolator through the shell, the filters in the air inlet and outlet arranged on the shell are fixedly connected to the shell, resulting in the filter being blocked by impurities and being inconvenient to disassemble when it needs to be cleaned or replaced, resulting in certain usage defects.

[0005] Therefore, it is necessary to provide a new anti-interference signal isolator to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-interference signal isolator to solve the problems raised in the above background technology.

[0007] The utility model provides an anti-interference signal isolator, comprising a mounting plate and a shell, one side of the mounting plate is fixedly connected with an isolator body by means of screws, an inner wall of the shell is respectively provided with an air inlet and an air outlet, the inner walls of the air inlet and the air outlet are both provided with filter screens, a mounting mechanism is provided on the shell, the inner wall of the air inlet is rotatably connected with a fan by means of a bracket, and the mounting mechanism is used for disassembling and assembling the filter screen.

[0008] In order to facilitate the disassembly and assembly of the filter, the utility model provides an anti-interference signal isolator. Preferably, the installation mechanism includes a limiting hole opened on the inner wall of the filter, the inner wall of the outer shell is slidably connected to a limiting rod, the top of the limiting rod is fixedly connected to a connecting block, and the top of the connecting block is fixedly connected to a spring.

[0009] In order to achieve a stable effect when the connecting block drives the limit rod to move, the utility model provides an anti-interference signal isolator. Preferably, the installation mechanism also includes a slider fixed to one side of the connecting block, and a sliding groove is provided on the inner wall of the outer shell, and the slider is slidably connected to the sliding groove.

[0010] In order to achieve the effect of fixing the shell on the mounting plate, the utility model provides an anti-interference signal isolator. Preferably, the mounting plate and one side of the shell are fixedly connected with a connecting plate, and the inner wall of the connecting plate is threadedly connected with a fixing screw.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The anti-interference signal isolator can remove the filter from the shell by setting a mounting mechanism, so that it is convenient to clean or replace the filter and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a preferred embodiment of an anti-interference signal isolator provided by the utility model;

[0014] Figure 2 It is a structural schematic diagram of the mounting plate and the isolator body in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the air inlet and the fan in the utility model;

[0016] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0017] Numbers in the figure: 1. Mounting plate; 2. Isolator body; 3. Housing; 4. Air inlet; 5. Air outlet; 6. Filter; 7. Mounting mechanism; 71. Limiting hole; 72. Limiting rod; 73. Connecting block; 74. Spring; 75. Slider; 8. Fan; 9. Connecting plate; 10. Fixing screw. DETAILED DESCRIPTION

[0018] 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. It is understandable that the drawings are only provided for reference and illustration, and are not used to limit the utility model. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0019] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of an anti-interference signal isolator provided by the utility model; Figure 2 It is a structural schematic diagram of the mounting plate and the isolator body in the utility model; Figure 3 This is a schematic diagram of the structure of the air inlet and the fan in the utility model; Figure 4 for Figure 3 A schematic diagram of the structure at A in the middle. An anti-interference signal isolator includes a mounting plate 1 and a housing 3, one side of the mounting plate 1 is fixedly connected to an isolator body 2 by screws, the inner wall of the housing 3 is respectively provided with an air inlet 4 and an air outlet 5, the inner walls of the air inlet 4 and the air outlet 5 are both provided with a filter 6, a mounting mechanism 7 is provided on the housing 3, the inner wall of the air inlet 4 is rotatably connected to a fan 8 through a bracket, and the mounting mechanism 7 is used to disassemble and install the filter 6.

[0020] It should be noted that the isolator body 2 is protected by the shell 3 to prevent interference with the isolator body 2 by external factors. The air inside the shell 3 can be circulated through the air inlet 4, the air outlet 5 and the fan 8, so as to dissipate the heat of the isolator body 2. Under the action of the filter 6, dust can be prevented from entering the shell 3. The filter 6 can be easily disassembled and assembled through the installation mechanism 7, and then it can be disassembled for cleaning or replacement.

[0021] In the specific implementation process, Figure 1 , Figure 3 and Figure 4 As shown, the mounting mechanism 7 includes a limiting hole 71 opened on the inner wall of the filter 6, the inner wall of the shell 3 is slidably connected to a limiting rod 72, the top of the limiting rod 72 is fixedly connected to a connecting block 73, the top of the connecting block 73 is fixedly connected to a spring 74, one side of the connecting block 73 is fixedly connected to a paddle, and one end of the spring 74 is fixedly connected to the inner wall of the shell 3.

[0022] It should be noted that: when the filter 6 needs to be disassembled, the paddle is moved so that the connecting block 73 drives the limit rod 72 to move and the spring 74 is compressed. At this time, the limit rod 72 is separated from the limit hole 71, so that the filter 6 can be removed from the outer shell 3, which is convenient for cleaning or replacement. Then the new filter 6 is installed into the air inlet 4 and the air outlet 5, and then the paddle is released. Through the rebound force of the spring 74, the limit rod 72 can be automatically reset and stuck in the limit hole 71, thereby completing the installation and fixation of the filter 6.

[0023] refer to Figure 3 and Figure 4 As shown, the mounting mechanism 7 further includes a sliding block 75 fixed to one side of the connecting block 73 , and a sliding groove is provided on the inner wall of the housing 3 , and the sliding block 75 is slidably connected to the sliding groove.

[0024] It should be noted that when the connecting block 73 moves, the sliding block 75 can be driven to move. The sliding block 75 moves through the sliding groove, which can improve the stability of the connecting block 73 when moving, thereby making the limiting rod 72 move stably.

[0025] refer to Figure 1 and Figure 2 As shown, a connecting plate 9 is fixedly connected to one side of the mounting plate 1 and the housing 3 , and a fixing screw 10 is threadedly connected to the inner wall of the connecting plate 9 .

[0026] It should be noted that: the isolator body 2 is fixed to the mounting plate 1 by screws, and then the shell 3 is moved to fit with the mounting plate 1, so that multiple connecting plates 9 can fit together, and then the fixing screws 10 are screwed into the connecting plates 9, and then the shell 3 is fixed to the mounting plate 1, so as to protect the isolator body 2.

[0027] The working principle of an anti-interference signal isolator provided by the utility model is as follows:

[0028] When in use, the isolator body 2 and the shell 3 are fixed on the mounting plate 1 in sequence. The isolator body 2 is protected by the shell 3 to prevent external factors from interfering with the isolator body 2. The outside air can enter the shell 3 through the air inlet 4 through the fan 8, and the high temperature in the shell 3 will be discharged from the air outlet 5, thereby dissipating the heat of the isolator body 2. The filter 6 can be easily removed from the shell 3 through the mounting mechanism 7, so as to facilitate its cleaning or replacement.

[0029] In the above detailed description, reference is made to the accompanying drawings, which form a part of this document. In the accompanying drawings, similar symbols typically identify similar components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0030] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anti-interference signal isolator, characterized in that: The invention comprises a mounting plate (1) and a housing (3), wherein one side of the mounting plate (1) is fixedly connected to an isolator body (2) by means of screws, an inner wall of the housing (3) is respectively provided with an air inlet (4) and an air outlet (5), the inner walls of the air inlet (4) and the air outlet (5) are both provided with a filter (6), a mounting mechanism (7) is provided on the housing (3), the inner wall of the air inlet (4) is rotatably connected to a fan (8) by means of a bracket, and the mounting mechanism (7) is used for disassembling and installing the filter (6).

2. The anti-interference signal isolator according to claim 1, characterized in that: The mounting mechanism (7) comprises a limiting hole (71) formed on the inner wall of the filter screen (6); the inner wall of the housing (3) is slidably connected to a limiting rod (72); the top of the limiting rod (72) is fixedly connected to a connecting block (73); the top of the connecting block (73) is fixedly connected to a spring (74).

3. The anti-interference signal isolator according to claim 2, characterized in that: The mounting mechanism (7) further comprises a sliding block (75) fixed to one side of the connecting block (73); a sliding groove is provided on the inner wall of the housing (3); and the sliding block (75) is slidably connected to the sliding groove.

4. The anti-interference signal isolator according to claim 1, characterized in that: The mounting plate (1) and one side of the housing (3) are both fixedly connected with a connecting plate (9), and the inner wall of the connecting plate (9) is threadedly connected with a fixing screw (10).

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