Anti-interference electronic device

Abstract

The present invention discloses an anti-interference electronic device, including a housing and an anti-interference component, wherein the anti-interference component includes a circuit board and a filter, a relay and an isolator located on the circuit board, an input socket and an output socket are arranged on the outer side of the housing, a support seat is arranged below the housing, an elastic spreader is arranged on the top of the support seat, two symmetrically distributed spreader arms are arranged on the elastic spreader, and the two sides of the housing are respectively connected by a suspension rope at positions close to the top of the two spreader arms. In the present invention, by arranging the spreader arm, the telescopic shock-absorbing rod, the flexible support and the suspension rope, the device is suspended and supported by the flexible support in a taut manner, which greatly reduces the cross-section of the medium that transmits vibrations, and can block vibrations in any direction, so that the device is in a stationary state, thereby improving the reliability of the operation of the device.

Description

Technical Field

[0001] The invention relates to the technical field of power electronics, and in particular to an anti-interference electronic device. Background Art

[0002] In order to avoid signal transmission interference, anti-interference electronic equipment is usually introduced. The core anti-interference components of such equipment are precision electrical components such as circuit boards, filters, relays and isolators. In addition, such equipment is usually connected by mechanical plug-in. Such equipment has high requirements on heat dissipation and moisture resistance to ensure stable operation of such equipment.

[0003] The utility model with the publication number CN214384960U proposes an anti-interference electronic device using power electronics technology, which solves the problem that the cooling fan inside the existing anti-interference electronic device using power electronics technology is fixedly installed, and the heat dissipation effect in some areas is not ideal, and then the heat dissipation function of the utility model is improved by combining water cooling and air cooling. However, there is a defect of poor moisture-proof effect. For example, when the air humidity is high and the device is not in use, moisture is easy to condense into water, making the internal electrical appliances of the anti-interference electronic device easy to oxidize and short-circuit.

[0004] The invention patent application with publication number CN116583044A proposes an anti-interference electronic device using power electronics technology, which relates to the field of power electronics technology. In this application, when encountering rainy days, the movable plate is slid along the heat dissipation channel, so that the moisture-proof plate embedded on the movable plate is moved into the heat dissipation channel, and the air passing through the heat dissipation channel can be dehumidified by the moisture-proof plate, so as to avoid the high humidity in the shell from affecting the operation of the main body of the anti-interference electronic device as much as possible. However, the dehumidification method of the moisture-proof plate can only remove moisture, and can only remove moisture in the flowing air. It cannot remove moisture in the area with poor gas flowability in the interfering electronic device. In addition, when condensed water is formed in the interfering electronic device, the dehumidification effect of this dehumidification plate is poor.

[0005] At present, the above-mentioned existing technologies still have the following common deficiencies: 1. They do not have anti-vibration function. Since the electrical components in the anti-interference electronic equipment are precision electronics, external vibrations will affect the normal operation of the precision electronics and the stability of the connection of the plug-in parts. For example, when the anti-interference electronic equipment is installed on a motor vehicle or on a high shelf, the external vibration will be transmitted to the equipment; 2. They do not have both cooling-type heat dissipation and heating-type dehumidification functions, resulting in poor heat dissipation and moisture-proof effects.

[0006] To this end, the present invention proposes an anti-interference electronic device. Summary of the invention

[0007] The purpose of the present invention is to provide an anti-interference electronic device in order to solve the problem mentioned in the background technology.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] An anti-interference electronic device comprises a shell and an anti-interference component, wherein the anti-interference component comprises a circuit board and a filter, a relay and an isolator located on the circuit board, an input socket and an output socket are arranged on the outer side of the shell, a support seat is arranged below the shell, an elastic spreader is arranged on the top of the support seat, two symmetrically distributed spreader arms are arranged on the elastic spreader, two sides of the shell are respectively connected by a suspension rope at positions close to the top of the two spreader arms, a telescopic shock-absorbing rod located between the two spreader arms and a flexible support connected to the top of the telescopic shock-absorbing rod are arranged on the elastic spreader, and the flexible support is used to prevent the shell from rotating around the suspension rope.

[0010] As a further description of the above technical solution:

[0011] The flexible support includes a groove-shaped base and two disc-shaped airbags located on the top of the groove-shaped base. The middle part of the bottom of the groove-shaped base is welded to the top of the action rod on the telescopic shock-absorbing rod, and the two disc-shaped airbags are against the bottom of the shell.

[0012] As a further description of the above technical solution:

[0013] The bottom of the bottom sleeve of the telescopic shock-absorbing rod is provided with a guide shaft that is slidably connected to the support seat up and down. The guide shaft is provided with a support spring located below the support seat. The bottom of the guide shaft is welded with a baffle that resists the support spring. The bottoms of the two spreading arms are hingedly connected to the support seat, and the outer peripheral wall of the bottom sleeve is hingedly connected to the opposite sides of the two spreading arms through connecting rods.

[0014] As a further description of the above technical solution:

[0015] The two spreading arms are each provided with at least two reversing pulleys distributed along the length direction. The suspension ropes on both sides of the shell are fixedly connected to the grooved base after passing around the reversing pulleys on the adjacent spreading arms. The guide shaft is screwed and connected to the bottom sleeve.

[0016] As a further description of the above technical solution:

[0017] The two spreading arms are arc-shaped and their inner arc surfaces are opposite to each other. A multifunctional hair dryer is arranged on the spreading arm, which can blow out cold air, hot air and normal temperature air. An air outlet pipe is arranged on the multifunctional hair dryer. Air inlet holes opposite to the air outlet pipe are provided at the junction of the two sides and the bottom of the outer shell, and an exhaust pipe is arranged on the top of the outer shell.

[0018] As a further description of the above technical solution:

[0019] The multifunctional hair dryer comprises two fans and a semiconductor cold and hot tube. The two fans are fixedly connected to the two sides of the spreading arm and the air outlets are respectively welded to the air outlet tubes. The outer peripheral wall of the semiconductor cold and hot tube is provided with cold air holes and hot air holes near the two ends. The two ends of the semiconductor cold and hot tube respectively penetrate the outer peripheral walls of the adjacent air outlet tubes. The semiconductor cold and hot tube and the air outlet tube are slidably and detachably connected.

[0020] As a further description of the above technical solution:

[0021] A semiconductor refrigeration sheet is arranged in the middle of the semiconductor cold and hot tube.

[0022] As a further description of the above technical solution:

[0023] The support seat is a door-shaped structure with a mounting plate welded on the bottom, and a mounting hole is opened on the mounting plate.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In the present invention, by arranging the spreading arm, the telescopic shock-absorbing rod, the flexible support and the suspension rope, the device is suspended tautly and supported by the flexible support, which greatly reduces the cross-section of the medium transmitting vibration and can block vibration in any direction, so that the device is in a stationary state, thereby improving the reliability of the operation of the device.

[0026] 2. In the present invention, both sides of the outer shell of the device are tightened by the hanging rope, and the bottom is driven by the telescopic shock-absorbing rod to drive the flexible support to prevent the outer shell from rotating. This arrangement allows the device to be installed arbitrarily, that is, it has anti-seismic function when installed in any position or in any posture, and has the advantage of a wide range of installation applications.

[0027] 3. In the present invention, a reversing pulley is arranged on the open arm, and the suspension rope is connected to the flexible support after passing through the pulley. Then, the guide shaft arranged at the bottom of the telescopic shock-absorbing rod is screwed and connected. When the guide shaft rotates, the tension of the suspension rope and the thrust of the flexible support on the housing can be adjusted in cooperation with the support spring, so that the housing can be in a stable anti-seismic state. In other words, when supporting and resisting earthquakes for electronic devices of different weights, the electronic device can be adjusted to the best anti-seismic state by controlling the rotation of the guide shaft.

[0028] 4. In the present invention, a multifunctional hair dryer is arranged on the spreading arm, and the multifunctional hair dryer has the function of conveying hot air, cold air and natural wind into the shell, so that the device has the functions of cooling and heat dissipation, drying and dehumidification, and ventilation and heat dissipation, so that the device can work in any environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1A schematic diagram of the structure of an anti-interference electronic device proposed by the present invention;

[0030] Figure 2 for Figure 1 The main view;

[0031] Figure 3 A schematic diagram of the structure of a multifunctional hair dryer for anti-interference electronic equipment proposed by the present invention;

[0032] Figure 4 A schematic diagram of the structure of a flexible support for an anti-interference electronic device proposed by the present invention;

[0033] Figure 5 for Figure 4 Schematic diagram of the enlarged part “a” in the figure.

[0034] Legend:

[0035] 1. Shell; 11. Input socket; 12. Output socket; 13. Exhaust duct; 14. Air inlet; 2. Anti-interference component; 21. Circuit board; 22. Filter; 23. Relay; 24. Isolator; 3. Support seat; 31. Mounting plate; 311. Mounting hole; 4. Elastic spreader; 41. Spreading arm; 411. Reversing pulley; 42. Telescopic shock-absorbing rod; 421. Bottom sleeve; 4211. Guide shaft; 42111. Baffle; 4212. Support spring; 4213. Connecting rod; 422. Action rod; 43. Flexible support; 431. Grooved base; 432. Disc air bag; 5. Suspension rope; 6. Multi-function hair dryer; 61. Fan; 62. Semiconductor hot and cold pipe; 621. Cold air hole; 622. Hot air hole; 623. Semiconductor refrigeration sheet; 63. Air outlet. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figure 1 , Figure 2 and Figure 4An anti-interference electronic device includes a shell 1 and an anti-interference component 2. The anti-interference component 2 includes a circuit board 21 and a filter 22, a relay 23 and an isolator 24 located on the circuit board 21. The anti-interference component 2 is not suitable for use in an environment with high vibration frequency and high vibration intensity, and external vibrations can easily drive the connecting cables to vibrate. An input socket 11 and an output socket 12 are provided on the outside of the shell 1. The connecting cables are connected to the input socket 11 and the output socket 12 through plugs to realize signal input and output. That is to say, external vibrations can easily drive the plugs to vibrate, which is not only easy to loosen, but also easy to cause interference.

[0039] In the present technical solution, a support base 3 is provided below the housing 1, and the support base 3 plays the role of bearing the present device. An elastic opener 4 is provided on the top of the support base 3, wherein the support base 3 is a door-shaped structure and a mounting plate 31 is welded at the bottom, and a mounting hole 311 is provided on the mounting plate 31, and the mounting plate 31 is a component connected to the mounting surface by bolts. The elastic opener 4 is provided with two symmetrically distributed open arms 41, and in this embodiment, the bottoms of the two open arms 41 can be welded and connected to the support base 3, and the two sides of the housing 1 are respectively connected by the two open arms 41 near the top through the suspension rope 5, and the two open arms 41 are opened to tighten the suspension rope 5, and the entire housing 1 is in a suspended state, wherein the suspension rope 5 can be a nylon rope, a steel wire rope or other rope bodies that are not easy to break. Since the cross-sectional area of ​​the suspension rope 5 is small, the intensity and frequency of the vibration transmitted to the housing will be greatly reduced. However, when the housing 1 is connected only by the suspension rope 5, the housing 1 is prone to unstable rotation.

[0040] To this end, a telescopic shock-absorbing rod 42 located between the two spreading arms 41 and a flexible support 43 connected to the top of the telescopic shock-absorbing rod 42 are provided on the elastic spreader 4. The telescopic shock-absorbing rod 42 is located below the outer shell 1. The telescopic shock-absorbing rod 42 adopts a common damping shock-absorbing rod, wherein the flexible support 43 and the action end of the telescopic shock-absorbing rod 42 are fixedly connected. The flexible support 43 is used to prevent the outer shell 1 from rotating around the suspension rope 5. The flexible support 43 has the function of buffering or eliminating vibrations to prevent harmful external vibrations from being transmitted to the outer shell 1.

[0041] Specifically, the flexible support 43 includes a groove-shaped base 431 and two disc-shaped airbags 432 located on the top of the groove-shaped base 431. The middle part of the bottom of the groove-shaped base 431 and the top of the action rod 422 on the telescopic shock-absorbing rod 42 are welded and connected. The two disc-shaped airbags 432 are against the bottom of the outer shell 1. The telescopic shock-absorbing rod 42 uses elastic tensile force to drive the disc-shaped airbags 432 to squeeze the bottom of the outer shell 1. The disc-shaped airbags 432 are in an extruded and deformed state. The disc-shaped airbags 432 can effectively eliminate external vibrations.

[0042] Example 2

[0043] See also Figure 1 and Figure 2 Since the elastic deformation degree of the suspension rope 5 is small, it is difficult to cope with a large impact force. Therefore, the difference between this embodiment and embodiment 1 is that a guide shaft 4211 connected to the support seat 3 for upward and downward sliding is arranged at the bottom of the bottom sleeve 421 of the telescopic shock-absorbing rod 42. Specifically, a guide sleeve is welded at the middle part of the support seat 3, and the guide sleeve is sleeved on the outside of the guide shaft 4211. A support spring 4212 located below the support seat 3 is sleeved on the guide shaft 4211. A baffle 42111 that resists the support spring 4212 is welded at the bottom of the guide shaft 4211. The support spring 4212 uses elastic force to make the baffle 42111 have a tendency to move downward. The bottom of the two spreading arms 41 is hingedly connected to the support seat 3, that is, the two spreading arms 41 can perform opening and closing movements, and the outer peripheral wall of the bottom sleeve 421 is respectively connected by connecting The rod 4213 and the opposite sides of the two spreading arms 41 are hingedly connected. In this embodiment, when the bottom sleeve 421 moves downward, the two connecting rods 4213 will drive the two spreading arms 41 to swing in the opposite direction. This setting enables the device to buffer large impact forces. For example, when the device stops suddenly during the movement of the vehicle, the inertial impact force will drive the shell 1 to move. At this time, the support spring 4212 can effectively buffer this impact. Moreover, when the support spring 4212 is extended and retracted, the entire telescopic shock-absorbing rod 42 will move. At this time, the squeezing force of the disc-shaped airbag 432 on the shell 1 also changes. For example, when the shell 1 is impacted and swung, the two spreading arms 41 will swing in opposite directions, the support spring 4212 will be compressed, the telescopic shock-absorbing rod 42 will move upward, and the disc-shaped airbag 432 will push the shell 1, so that the outside is in a stable state. Compared with the prior art, the device with anti-seismic function can only be installed vertically to achieve the shock-absorbing function structure. This setting can be installed vertically or horizontally without affecting the shock-absorbing performance.

[0044] Example 3

[0045] See also Figure 2, based on Example 1 and differing from Example 2 in that at least two reversing pulleys 411 distributed along the length direction are provided on the two spreading arms 41, and the two reversing pulleys 411 are close to the two ends of the spreading arms 41. The suspension ropes 5 on both sides of the housing 1 pass around the reversing pulleys 411 on the adjacent spreading arms 41 and are fixedly connected to the grooved base 431. The guide shaft 4211 and the bottom sleeve 421 are screwed together. When the guide shaft 4211 is controlled to rotate, the compression amount of the support spring 4212, that is, the strength of the support spring 4212 to resist deformation can be adjusted. For example, when the weight of the outer shell 1 and the components installed inside it increases, the compression of the support spring 4212 increases, and the inclination angle of the remaining suspension rope relative to the horizontal plane increases, which will affect the stability of the entire electronic device. At this time, the guide shaft 4211 is controlled to rotate to increase the compression of the support spring 4212, and the two support arms 41 swing outward, the height of the outer shell 1 decreases, and the suspension ropes 5 on both sides thereof will be re-tightened to improve the stability of the suspension of the outer shell 1. This arrangement is suitable for hanging outer shells 1 of different weights, wherein the suspension rope 5 can be connected to the outer shell 1 with a common hook (not shown in the figure) for easy replacement. Therefore, compared with the prior art, it has the advantage of stable shock absorption for electronic devices of different weights.

[0046] Example 4

[0047] See also Figure 1 , Figure 3 and Figure 5 , which is different from Example 3, the two spreading arms 41 are arc-shaped and their inner arc surfaces are opposite to each other, and a multifunctional hair dryer 6 is arranged on the spreading arm 41, which can blow out cold air, hot air and normal temperature air, and an air outlet pipe 63 is arranged on the multifunctional hair dryer 6, and air inlet holes 14 opposite to the air outlet pipe 63 are opened at the junction of the two sides and the bottom of the shell 1. When the air outlet pipe 63 sprays hot air, the hot air enters through the air inlet holes 14, and an exhaust pipe 13 is arranged on the top of the shell 1. The hot air will dry the cold air droplets on the electrical components in the shell 1, and then the moisture will be discharged through the exhaust pipe 13. When cooling and heat dissipation are required, the air outlet pipe 63 can be controlled to discharge cold air. When the device is working at normal temperature, the air outlet pipe 63 can be controlled to discharge normal temperature air for ventilation and heat dissipation.

[0048] Furthermore, the multifunctional hair dryer 6 includes two fans 61 and a semiconductor cold and hot tube 62, wherein a semiconductor refrigeration sheet 623 is arranged in the middle of the semiconductor cold and hot tube 62, one surface of the semiconductor refrigeration sheet 623 generates heat and the other surface generates cooling, the two fans 61 are fixedly connected to the two sides of the open arm 41 and the air outlets are respectively welded to the air outlet pipe 63, that is, one fan 61 corresponds to one air outlet pipe 63, and the outer peripheral wall of the semiconductor cold and hot tube 62 is provided with cold air holes 621 and hot air holes 622 near both ends, when the semiconductor cold and hot tube 62 is powered on, the low temperature generated by its cooling surface is transmitted outwardly through the cold air holes 621, and its heating surface The generated high temperature is transmitted outwards from the hot air hole 622, and the two ends of the semiconductor cold and hot pipe 62 respectively penetrate the outer peripheral wall of the adjacent air outlet pipe 63, so that the cold air hole 621 on the semiconductor cold and hot pipe 62 is located in the air outlet pipe 63 corresponding to one fan 61, and the hot air hole 622 is located in the air outlet pipe 63 corresponding to another fan 61. At this time, the four fans 61 are turned on at the same time, and then the semiconductor cold and hot pipe 62 is controlled not to work to achieve normal temperature ventilation and heat dissipation. When the semiconductor cold and hot pipe 62 is controlled to work, the fan 61 corresponding to the cold air hole 621 is controlled to start to achieve cooling and heat dissipation. When the fan 61 corresponding to the hot air hole 622 is controlled to work, heating and dehumidification can be achieved. The semiconductor cold and hot pipe 62 and the air outlet pipe 63 are slidably detachably connected. The function of this setting is to facilitate the disassembly of the semiconductor cold and hot pipe 62, that is, the outer wall of the air outlet pipe 63 is provided with a docking hole that matches the gap with the semiconductor cold and hot pipe 62, and the semiconductor cold and hot pipe 62 can be separated from the air outlet pipe 63 when sliding left and right.

[0049] Working principle: When in use, install the mounting plate 31 on the vibration surface. When the vibration surface vibrates, the vibration will be transmitted to the housing 1 through the suspension rope 5, and will also be transmitted to the housing 1 through the four disc-shaped air bags 432. Since the suspension rope 5 has a small cross-section and is a soft structure, the suspension rope can effectively block the transmission of vibration, and the disc-shaped air bags 432 will directly eliminate the vibration. When the electrical components in the housing 1 need to produce condensed water droplets due to the humid environment, power is supplied to the semiconductor refrigeration plate 623, and the high temperature generated by the heating surface of the semiconductor refrigeration plate 623 is radiated to two of the air outlet pipes 63 through the hot air holes 622. At this time, only the fans 61 corresponding to the two air outlet pipes 63 are started, and the hot air will enter the housing 1 through the air inlet 14 and dry the electrical components in the housing 1. Then the humid gas generated by the drying will be discharged from the exhaust pipe 13 to achieve dehumidification.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-interference electronic device, comprising a housing (1) and an anti-interference component (2), wherein the anti-interference component (2) comprises a circuit board (21) and a filter (22), a relay (23) and an isolator (24) located on the circuit board (21), and an input socket (11) and an output socket (12) are arranged on the outer side of the housing (1), characterized in that: A support seat (3) is arranged below the shell (1), and an elastic spreader (4) is arranged on the top of the support seat (3). The elastic spreader (4) is provided with two symmetrically distributed spreader arms (41). The two sides of the shell (1) are respectively connected to the positions of the two spreader arms (41) near the top through the suspension rope (5). The elastic spreader (4) is provided with a telescopic shock-absorbing rod (42) located between the two spreader arms (41) and a flexible support (43) connected to the top of the telescopic shock-absorbing rod (42). The flexible support (43) is used to prevent the shell (1) from rotating around the suspension rope (5). The flexible support (43) comprises a groove-shaped base (431) and two plates located on the top of the groove-shaped base (431). The middle part of the bottom of the groove-shaped base (431) is welded to the top of the action rod (422) on the telescopic shock-absorbing rod (42), the two disc-shaped airbags (432) are against the bottom of the housing (1), the bottom of the bottom sleeve (421) of the telescopic shock-absorbing rod (42) is provided with a guide shaft (4211) connected to the support seat (3) in an up-and-down sliding manner, the guide shaft (4211) is sleeved with a support spring (4212) located below the support seat (3), the bottom of the guide shaft (4211) is welded with a baffle (42111) against the support spring (4212), the bottom of the two spreading arms (41) are hingedly connected to the support seat (3), and the outer peripheral wall of the bottom sleeve (421) is respectively The connecting rod (4213) and the opposite sides of the two spreading arms (41) are hingedly connected. The two spreading arms (41) are each provided with at least two reversing pulleys (411) distributed along the length direction. The suspension ropes (5) on both sides of the housing (1) are fixedly connected to the groove-shaped base (431) after passing through the reversing pulleys (411) on the adjacent spreading arms (41). The guide shaft (4211) and the bottom sleeve (421) are screwed together. The two spreading arms (41) are arc-shaped and their inner arc surfaces are opposite. The spreading arms (41) are provided with a multifunctional blower (6), which can blow out cold air, hot air and normal temperature air. The multifunctional blower (6) is provided with an air outlet pipe (63). The outer shell (1) has air inlet holes (14) at the junction of the two sides and the bottom thereof, which are opposite to the air outlet pipe (63). The top of the outer shell (1) is provided with an air exhaust pipe (13). The multifunctional hair dryer (6) comprises two fans (61) and a semiconductor cold and hot pipe (62). The two fans (61) are fixedly connected to the two sides of the support arm (41) and the air outlets are respectively welded to the air outlet pipe (63). The outer peripheral wall of the semiconductor cold and hot pipe (62) is provided with cold air holes (621) and hot air holes (622) near the two ends. The two ends of the semiconductor cold and hot pipe (62) respectively penetrate the outer peripheral walls of the adjacent air outlet pipes (63). The semiconductor cold and hot pipe (62) and the air outlet pipe (63) are slidably and detachably connected.

2. The anti-interference electronic device according to claim 1, characterized in that: A semiconductor cooling sheet (623) is arranged in the middle of the semiconductor cold and hot tube (62).

3. An anti-interference electronic device according to any one of claims 1-2, characterized in that: The support seat (3) is a door-shaped structure and has a mounting plate (31) welded to the bottom. The mounting plate (31) is provided with a mounting hole (311).

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