Electronic fuse anti-interference protection structure

Abstract

The utility model relates to the technical field of electronic fuses, and provides an anti-interference protection structure of an electronic fuse, which comprises a first shell and a second shell, an electronic fuse body is arranged in the first shell, the second shell is fixedly mounted at one end of the first shell, and a plurality of grooves are formed in the inner wall of the second shell; when the electromagnetic shielding device is used, the first shell and the second shell are both made of stainless steel, the shielding coating is formed by uniformly coating the inner wall of the first shell with carbon nano tube paint and has a good electromagnetic shielding effect, and the square ring is made of conductive rubber and also has a good electromagnetic shielding effect. The electronic fuse body is protected and buffered, the electronic fuse body is prevented from colliding with the mounting frame due to vibration of the first shell and the second shell, electromagnetic interference on a power line and a signal line is conveniently filtered through the arrangement of the filter, and the anti-interference effect of the electronic fuse body is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic fuzes, in particular to an anti-interference protection structure of an electronic fuze. Background Art

[0002] An electronic fuze is a device that uses electronic technology to control the detonation of pyrotechnics such as ammunition, rockets, and missiles. Compared with traditional mechanical fuzes, electronic fuzes have higher precision, flexibility, and intelligence.

[0003] However, the prior art has the following disadvantages when used: electronic fuses require electronic components and circuits to terminate, process and generate signals, etc. These electronic components are easily affected by various electromagnetic interferences when working, such as radio waves, radar radiation, lightning, electrostatic discharge, etc., which may cause damage or even false explosions. In addition, electronic fuses are generally placed inside the ammunition casing, and the ammunition casing is cylindrical in shape, which is prone to rolling and displacement when placed on the ground. Therefore, an electronic fuse anti-interference protection structure is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that electronic fuzes require electronic components and circuits for signal termination, processing and signal generation, etc., and these electronic components are easily affected by various electromagnetic interferences when working, such as radio waves, radar radiation, lightning, electrostatic discharge, etc., which may cause damage or even false explosion. In addition, electronic fuzes are generally placed inside the ammunition shell, and the shape of the ammunition shell is cylindrical, which is prone to rolling and displacement when placed on the ground.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electronic fuze anti-interference protection structure, comprising: a first shell, an electronic fuze body is arranged inside the first shell, and further comprising:

[0006] A second shell is fixedly mounted on one end of the first shell, and a plurality of grooves are formed on an inner wall of the second shell;

[0007] A shielding coating is arranged on the inner wall of the first shell, and a mounting frame is slidably connected to the inner walls of the plurality of grooves;

[0008] A square ring is fixedly mounted on one end of the mounting frame close to the first shell, and the inner walls of the plurality of grooves are all slidably mounted with isolation blocks;

[0009] The shielding plate is fixedly mounted on one end of the plurality of isolation blocks away from the mounting frame, and a screw is threadedly mounted on one end of the electronic fuse body close to the square ring.

[0010] Preferably, one side of the plurality of isolation blocks is in contact with a side of the mounting frame away from the electronic fuse body, and a plurality of through holes are formed at one end of the mounting frame close to the plurality of screws.

[0011] The technical effect of adopting the above further scheme is: the first shell and the second shell are both made of stainless steel, and have good electromagnetic shielding effect. The shielding coating is made of carbon nanotube coating evenly applied on the inner wall of the first shell. The electronic fuse body is attached to one end of the square ring, and then the screw is passed through the through hole and installed at one end of the electronic fuse body, which is convenient for fixing the screw on the mounting frame. The setting of the square ring makes it convenient to lift the electronic fuse body without contacting the mounting frame. The square ring is made of conductive rubber, which also has good electromagnetic shielding effect, and has a protective buffering effect on the electronic fuse body, preventing the vibration of the first shell and the second shell from causing the electronic fuse body to collide with the mounting frame. The filter on the fixing frame is installed with the input and output ports of the electronic fuse body, which is convenient for filtering out electromagnetic interference on the power line and signal line, which is beneficial to further enhance the anti-interference effect of the electronic fuse body.

[0012] Preferably, outer surfaces of the plurality of screws are respectively slidably connected to inner walls of the plurality of through holes, and a fixing frame is fixedly mounted on one end of the mounting frame away from the square ring.

[0013] The technical effect of adopting the above further solution is: the screw is passed through the through hole and installed at one end of the electronic fuze body, so that the screw is conveniently fixed on the mounting frame.

[0014] Preferably, a filter is fixedly mounted on one end of the fixing frame away from the square ring, and the filter is electrically connected to the electronic fuse body.

[0015] The technical effect of adopting the above further solution is that the filter on the fixed frame is installed with the input and output ports of the electronic fuse body, so as to filter out electromagnetic interference on the power line and signal line.

[0016] Preferably, a plurality of fixing rods are slidably mounted on the inner walls of the plurality of grooves, and one end of the plurality of fixing rods is in contact with a side of the shielding plate away from the filter.

[0017] The technical effect of adopting the above further solution is that the provision of the fixing rod facilitates pushing the shielding plate to move toward the first shell.

[0018] Preferably, a connecting ring is fixedly mounted on one end of each of the fixing rods away from the shielding plate, and a side of the connecting ring close to the fixing rod is fixedly connected to the outer surface of the second shell.

[0019] The technical effect of adopting the above further solution is: after the electronic fuse body is pushed into the first shell, one side of the connecting ring contacts the second shell, and at this time the connecting ring can be fixedly connected to the second shell by means including but not limited to welding.

[0020] Preferably, a first connecting block is threadedly mounted on an outer ring of the connecting ring, and a plurality of connecting rods are fixedly mounted on an outer surface of the first connecting block.

[0021] The technical effect of adopting the above further solution is that the first connecting block and the second connecting block are connected by a connecting rod, so as to enhance the stability between the first connecting block and the second connecting block.

[0022] Preferably, one end of each of the plurality of connecting rods away from the first connecting block is fixedly connected to a second connecting block, and an inner ring of the second connecting block is in contact with an outer surface of the second shell.

[0023] The technical effect of adopting the above further solution is that the inner circle of the second connecting block contacts the outer surface of the second shell, so that the second connecting block can be sleeved outside the second shell and can move on the outer surface of the second shell.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] 1. In the utility model, when in use, the first shell and the second shell are both made of stainless steel, the shielding coating is made of carbon nanotube coating evenly applied on the inner wall of the first shell, and has a good electromagnetic shielding effect, the square ring is made of conductive rubber, which also has a good electromagnetic shielding effect, and has a protective buffering effect on the electronic fuse body to prevent the first shell and the second shell from vibrating and causing the electronic fuse body to collide with the mounting frame. The setting of the filter is convenient for filtering out electromagnetic interference on the power line and the signal line, which is conducive to further enhancing the anti-interference effect of the electronic fuse body.

[0026] 2. In the present invention, when in use, a connecting rod is raised between the first connecting block and the second connecting block to connect them, so as to enhance the stability between the first connecting block and the second connecting block. The first connecting block and the second connecting block are provided with extension blocks outside to prevent the present invention from rolling and displacing on a sloping ground, which is beneficial to improving the stability of the present invention when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional structural schematic diagram of an electronic fuze anti-interference protection structure provided by the utility model;

[0028] Figure 2 A schematic diagram of a side-view stereoscopic structure of an electronic fuze anti-interference protection structure provided by the utility model;

[0029] Figure 3 A schematic diagram of a cross-sectional three-dimensional structure of an electronic fuze anti-interference protection structure provided by the utility model;

[0030] Figure 4 The utility model provides an electronic fuze anti-interference protection structure Figure 3 Enlarged view of point A.

[0031] Legend: 1. First shell; 2. Second shell; 201. Mounting frame; 202. Electronic fuse body; 203. Fixing frame; 204. Filter; 205. Isolation block; 206. Shielding plate; 207. Square ring; 208. Screw; 209. Through hole; 3. First connecting block; 4. Connecting rod; 5. Second connecting block; 6. Connecting ring; 7. Fixing rod; 8. Groove; 9. Shielding coating. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0034] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides an electronic fuze anti-interference protection structure, comprising: a first shell 1, an electronic fuze body 202 is arranged inside the first shell 1, and further comprising:

[0035] The second housing 2 is fixedly mounted on one end of the first housing 1, and a plurality of grooves 8 are formed on the inner wall of the second housing 2;

[0036] The shielding coating 9 is arranged on the inner wall of the first housing 1, and the inner walls of the plurality of grooves 8 are slidably connected with a mounting frame 201;

[0037] The square ring 207 is fixedly mounted on one end of the mounting frame 201 close to the first housing 1, and the inner walls of the plurality of grooves 8 are all slidably mounted with isolation blocks 205;

[0038] The shielding plate 206 is fixedly mounted on one end of the plurality of isolation blocks 205 away from the mounting frame 201 , and a screw 208 is threadedly mounted on one end of the electronic fuse body 202 close to the square ring 207 .

[0039] In this embodiment, when in use, the first shell 1 and the second shell 2 are both made of stainless steel and have a good electromagnetic shielding effect. The shielding coating 9 is formed by evenly applying carbon nanotube coating on the inner wall of the first shell 1. The electronic fuse body 202 is attached to one end of the square ring 207, and then the screw 208 is installed on one end of the electronic fuse body 202 through the through hole 209, which is convenient for fixing the screw 208 on the mounting frame 201. The setting of the square ring 207 is convenient for lifting the electronic fuse body 202 without contacting the mounting frame 201. The square ring 207 is made of conductive rubber and also has a good electromagnetic shielding effect. It also has a protective buffering effect on the electronic fuse body 202 to prevent the first shell 1 and the second shell 2 from vibrating and causing the electronic fuse body 202 to collide with the mounting frame 201. The filter 204 on the fixing frame 203 is installed with the input and output ports of the electronic fuse body 202, which is convenient for filtering out electromagnetic interference on the power line and the signal line, which is conducive to further enhancing the anti-interference effect of the electronic fuse body 202.

[0040] Embodiment 2, as Figure 1 - Figure 4 As shown, one side of the plurality of isolation blocks 205 is in contact with the side of the mounting frame 201 away from the electronic fuse body 202, a plurality of through holes 209 are provided at one end of the mounting frame 201 close to the plurality of screws 208, and the outer surfaces of the plurality of screws 208 are respectively slidably connected with the inner walls of the plurality of through holes 209, a fixing frame 203 is fixedly installed at one end of the mounting frame 201 away from the square ring 207, and a filter 204 is fixedly installed at one end of the fixing frame 203 away from the square ring 207, and the filter 204 is electrically connected to the electronic fuse body 202, and the inner walls of the plurality of grooves 8 are slidably installed. There are multiple fixing rods 7, one end of the multiple fixing rods 7 is in contact with the side of the shielding plate 206 away from the filter 204, the ends of the multiple fixing rods 7 away from the shielding plate 206 are fixedly installed with a connecting ring 6, the side of the connecting ring 6 close to the fixing rod 7 is fixedly connected to the outer surface of the second shell 2, the outer circle of the connecting ring 6 is threadedly installed with a first connecting block 3, the outer surface of the first connecting block 3 is fixedly installed with multiple connecting rods 4, the ends of the multiple connecting rods 4 away from the first connecting block 3 are fixedly connected with the second connecting block 5, and the inner circle of the second connecting block 5 is in contact with the outer surface of the second shell 2.

[0041] In this embodiment, when in use, the mounting frame 201 is installed into the groove 8, and then the isolation block 205, the shielding plate 206 and the fixing rod 7 are installed into the groove 8 in sequence, so as to facilitate pushing the electronic fuse body 202 into the interior of the first shell 1. The shielding plate 206 is made of copper, so as to facilitate separating the first shell 1 and the second shell 2 into two spaces. After the electronic fuse body 202 is pushed into the interior of the first shell 1, one side of the connecting ring 6 contacts the second shell 2. At this time, the connecting ring 6 can be fixedly connected to the second shell 2 by means including but not limited to welding. The staff sleeves the first connecting block 3 and the second connecting block 5 on the outside of the second shell 2, and the inner circle thread of the first connecting block 3 is installed on the outer circle of the connecting ring 6, so as to facilitate enhancing the stability of the connection between the first connecting block 3 and the connecting ring 6. The first connecting block 3 and the second connecting block 5 are connected by the connecting rod 4, so as to facilitate enhancing the stability between the first connecting block 3 and the second connecting block 5. The first connecting block 3 and the second connecting block 5 have extension blocks on the outside, so as to facilitate preventing the present invention from rolling and displacing on the inclined ground, which is beneficial to improving the stability of the present invention when in use.

[0042] Working principle: When in use, the first shell 1 and the second shell 2 are both made of stainless steel and have good electromagnetic shielding effect. The shielding coating 9 is made of carbon nanotube coating evenly applied on the inner wall of the first shell 1. The electronic fuse body 202 is attached to one end of the square ring 207, and then the screw 208 is installed on one end of the electronic fuse body 202 through the through hole 209, which is convenient for fixing the screw 208 on the mounting frame 201. The setting of the square ring 207 is convenient for lifting the electronic fuse body 202 without contacting the mounting frame 201. The square ring 207 is convenient for lifting the electronic fuse body 202 without contacting the mounting frame 201. 07 is made of conductive rubber, which also has a good electromagnetic shielding effect, and has a protective buffering effect on the electronic fuse body 202, preventing the first shell 1 and the second shell 2 from vibrating and causing the electronic fuse body 202 to collide with the mounting frame 201. The filter 204 on the fixing frame 203 is installed with the input and output ports of the electronic fuse body 202, which is convenient for filtering out electromagnetic interference on the power line and signal line, and is conducive to further enhancing the anti-interference effect of the electronic fuse body 202. When in use, install the mounting frame 201 into the groove 8, and then The isolation block 205, the shielding plate 206 and the fixing rod 7 are sequentially installed into the groove 8, so as to facilitate pushing the electronic fuse body 202 into the interior of the first shell 1. The shielding plate 206 is made of copper, so as to facilitate separating the first shell 1 and the second shell 2 into two spaces. After the electronic fuse body 202 is pushed into the interior of the first shell 1, one side of the connecting ring 6 contacts the second shell 2. At this time, the connecting ring 6 can be fixedly connected to the second shell 2 by means including but not limited to welding. The staff sleeves the first connecting block 3 and the second connecting block 5 on the outside of the second shell 2. The inner circle thread of the first connecting block 3 is installed on the outer circle of the connecting ring 6, so as to facilitate enhancing the stability of the connection between the first connecting block 3 and the connecting ring 6. The first connecting block 3 and the second connecting block 5 are connected by the connecting rod 4, so as to facilitate enhancing the stability between the first connecting block 3 and the second connecting block 5. The outside of the first connecting block 3 and the second connecting block 5 are provided with extension blocks, so as to facilitate preventing the utility model from rolling and displacing on the inclined ground, which is beneficial to improving the stability of the utility model when used. The model of the filter 204 is LEV200H5ANA.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An electronic fuze anti-interference protection structure, comprising a first shell (1), wherein an electronic fuze body (202) is arranged inside the first shell (1), characterized in that: Also includes: A second shell (2) is fixedly mounted on one end of the first shell (1), and a plurality of grooves (8) are formed on the inner wall of the second shell (2); A shielding coating (9) is arranged on the inner wall of the first shell (1), and the inner walls of the plurality of grooves (8) are slidably connected to a mounting frame (201); A square ring (207) is fixedly mounted on one end of the mounting frame (201) close to the first shell (1), and isolation blocks (205) are slidably mounted on the inner walls of the plurality of grooves (8); The shielding plate (206) is fixedly mounted on one end of the plurality of isolation blocks (205) away from the mounting frame (201), and a screw (208) is threadedly mounted on one end of the electronic fuse body (202) close to the square ring (207).

2. The electronic fuze anti-interference protection structure according to claim 1, characterized in that: One side of the plurality of isolation blocks (205) contacts a side of the mounting frame (201) away from the electronic fuse body (202), and a plurality of through holes (209) are provided at one end of the mounting frame (201) close to the plurality of screws (208).

3. The electronic fuze anti-interference protection structure according to claim 2, characterized in that: The outer surfaces of the plurality of screws (208) are respectively slidably connected to the inner walls of the plurality of through holes (209), and a fixing frame (203) is fixedly mounted on one end of the mounting frame (201) away from the square ring (207).

4. The electronic fuze anti-interference protection structure according to claim 3 is characterized in that: A filter (204) is fixedly mounted on one end of the fixing frame (203) away from the square ring (207), and the filter (204) is electrically connected to the electronic fuse body (202).

5. The electronic fuze anti-interference protection structure according to claim 4, characterized in that: A plurality of fixing rods (7) are slidably mounted on the inner walls of the plurality of grooves (8), and one end of the plurality of fixing rods (7) is in contact with a side of the shielding plate (206) away from the filter (204).

6. The electronic fuze anti-interference protection structure according to claim 5, characterized in that: A connecting ring (6) is fixedly mounted on one end of each of the fixing rods (7) away from the shielding plate (206); the connecting ring (6) is fixedly connected to the outer surface of the second shell (2) on one side close to the fixing rod (7).

7. The electronic fuze anti-interference protection structure according to claim 6, characterized in that: The outer ring of the connecting ring (6) is threadedly mounted with a first connecting block (3), and the outer surface of the first connecting block (3) is fixedly mounted with a plurality of connecting rods (4).

8. The electronic fuze anti-interference protection structure according to claim 7, characterized in that: One end of each of the plurality of connecting rods (4) away from the first connecting block (3) is fixedly connected to a second connecting block (5), and the inner ring of the second connecting block (5) is in contact with the outer surface of the second shell (2).

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