Strong current line isolation device in anti-interference instrument box

Abstract

The utility model relates to the technical field of strong current line isolation, and discloses a strong current line isolation device in an anti-interference instrument box, a heat dissipation box is installed on the upper surface of a case main body, a sealing plate is clamped on the upper surface of the heat dissipation box, a filter screen is further arranged in the heat dissipation box, and the sealing plate is clamped on the sealing plate. A mounting plate is mounted at the position, below the filter screen, in the heat dissipation box, and fans are symmetrically arranged on the upper surface of the mounting plate; a wire clamping mechanism is further arranged on the upper surface of the interior of the case body, the wire clamping mechanism comprises a fixing rod installed on the upper surface of the interior of the case body, the lower end of the fixing rod is in threaded connection with an adjusting screw rod, and the lower end of the adjusting screw rod is connected with a positioning sleeve. Through the operation of the fan in the heat dissipation box, external air enters the heat dissipation box through the air inlet hole, and impurities in the air are filtered through the filter screen, so that dust in the air is prevented from entering the interior of the case main body to damage a strong current circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of strong electric line isolation, in particular to a strong electric line isolation device in an anti-interference instrument box. Background Art

[0002] An anti-interference instrument box is a device specially designed for measuring and monitoring electrical parameters. It has the ability to resist electromagnetic interference and electrical noise. These instrument boxes usually contain a variety of instruments and sensors, such as ammeters, voltmeters, power meters, frequency meters, thermometers, pressure gauges, etc., which are used to measure and monitor various electrical and physical parameters. When using an anti-interference instrument box, the high-voltage circuits inside it need to be isolated to avoid signal influences between the circuits.

[0003] A Chinese patent discloses an anti-interference power amplifier chassis isolation device for high-voltage lines (authorization announcement number CN220342707U). This patented technology can isolate a single high-voltage line to prevent damage to other high-voltage lines when a single high-voltage line is damaged. At the same time, it can dissipate heat and moisture on the high-voltage line to protect the high-voltage line.

[0004] However, there are still some shortcomings in this patent. Although this patent can insulate and dissipate heat for the high-voltage circuit, it can be seen from the drawings of this patent that this patent cannot filter the air entering the chassis during heat dissipation, which will cause dust in the air to enter and cause harm to the high-voltage circuit, affecting the use of the high-voltage circuit. Therefore, those skilled in the art provide an anti-interference instrument box high-voltage circuit isolation device to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide an anti-interference strong electric line isolation device in an instrument box to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A strong current circuit isolation device in an anti-interference instrument box, comprising a box body, a box door hinged on the front surface of the box body, a power receiving socket arranged on the inner side of the box body, a strong current circuit symmetrically arranged on one side of the box body, and a discharge socket installed on the outer side of the box body, a heat sink is installed on the upper surface of the box body, a sealing plate is clamped on the upper surface of the heat sink, and a filter is also arranged inside the heat sink, a mounting plate is installed inside the heat sink below the filter, and a fan is symmetrically arranged on the upper surface of the mounting plate;

[0008] A wire-holding mechanism is also provided on the inner upper surface of the chassis body, and the wire-holding mechanism includes a fixing rod installed on the inner upper surface of the chassis body, an adjusting screw is threadedly connected to the lower end of the fixing rod, a positioning sleeve is connected to the lower end of the adjusting screw, and the positioning sleeve is sleeved on the outside of the high-voltage line.

[0009] As a further solution of the utility model: a fixing plate is also installed on the inner lower surface of the chassis body, and electric telescopic rods are symmetrically arranged on the upper surface of the fixing plate. The telescopic ends of the electric telescopic rods are connected to connecting plates, and the connecting plates are installed on the lower surface of the isolation frame by screws.

[0010] As a further solution of the utility model: the lower surface of the sealing plate is symmetrically provided with bayonet pins, and the upper surface of the heat dissipation box is provided with bayonet holes that engage with the bayonet pins.

[0011] As a further solution of the utility model: the lower surface of the heat dissipation box is symmetrically provided with air outlet pipes, and the upper surface of the sealing plate is provided with air inlet holes.

[0012] As a further solution of the utility model: a mounting hole is provided on the upper surface of the positioning sleeve, and the lower end of the adjusting screw is embedded in the mounting hole and threadedly connected to the mounting hole.

[0013] As a further solution of the utility model: a groove is opened on the inner side of the positioning sleeve, a pressure plate sleeve is arranged inside the groove, a rotating rod is penetrated through the outer side of the positioning sleeve, a bearing is arranged on the outer side of the pressure plate sleeve, and one end of the rotating rod is embedded in the bearing and rotatably connected to the bearing.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. An anti-interference instrument box isolation device for strong electric circuits. The fan inside the heat sink works, so that the outside air enters the heat sink through the air inlet, and the impurities in the air are filtered through the filter, so as to prevent the dust in the air from entering the inside of the chassis body and causing harm to the strong electric circuits. The sealing plate is connected to the heat sink, so that the filter inside can be easily disassembled and replaced, which is convenient for use.

[0016] 2. An anti-interference high-voltage line isolation device in an instrument box. Through the setting of a line clamping mechanism, the high-voltage line can be sleeved, so as to prevent the high-voltage line from falling and affecting its use. At the same time, the rotation of the rotating rod will enable the pressure plate sleeve to clamp the high-voltage line to ensure the stability of the high-voltage line and prevent the high-voltage line from falling off and affecting its normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of a strong current line isolation device in an anti-interference instrument box;

[0018] Figure 2 It is a structural schematic diagram of a heat sink in a strong electric line isolation device in an anti-interference instrument box;

[0019] Figure 3 It is a structural schematic diagram of an isolation frame in a strong current line isolation device in an anti-interference instrument box;

[0020] Figure 4 The present invention is a structural schematic diagram of a wire clamping mechanism in a high-voltage line isolation device in an anti-interference instrument box.

[0021] In the figure: 1. chassis body; 11. power socket; 12. high-voltage line; 13. discharge socket; 2. box door; 3. heat sink; 31. mounting plate; 311. fan; 32. air outlet duct; 33. filter; 34. sealing plate; 341. air inlet; 342. latch; 4. wire clamping mechanism; 41. fixing rod; 42. adjusting screw; 43. positioning sleeve; 431. groove; 44. pressure plate sleeve; 441. bearing; 442. rotating rod; 5. isolation frame; 51. connecting plate; 52. electric telescopic rod; 53. fixing plate. DETAILED DESCRIPTION

[0022] See also Figures 1 to 4 In the embodiment of the utility model, an anti-interference instrument box internal strong electric line isolation device comprises a chassis body 1, a box door 2 hinged on the front surface of the chassis body 1, a power receiving socket 11 arranged on the inner side of the chassis body 1, a strong electric line 12 symmetrically arranged on one side of the chassis body 1, and a discharge socket 13 installed on the outer side of the chassis body 1. A heat sink 3 is installed on the upper surface of the chassis body 1, a sealing plate 34 is clamped on the upper surface of the heat sink 3, and a filter 33 is also arranged inside the heat sink 3. A mounting plate 31 is installed below the filter 33 inside the heat sink 3, and a fan 311 is symmetrically arranged on the upper surface of the mounting plate 31. The setting utilizes the work of the fan 311 inside the heat sink 3 to achieve the purpose of dissipating the strong electric line 12 inside the chassis body 1, and at the same time, the filter 33 can be used to prevent dust in the air from entering and affecting the strong electric line 12.

[0023] A wire-holding mechanism 4 is also provided on the inner upper surface of the chassis body 1. The wire-holding mechanism 4 includes a fixing rod 41 installed on the inner upper surface of the chassis body 1. The lower end of the fixing rod 41 is threadedly connected with an adjusting screw 42. The lower end of the adjusting screw 42 is connected with a positioning sleeve 43. The positioning sleeve 43 is sleeved on the outside of the high-voltage line 12. This arrangement utilizes the wire-holding mechanism 4 to position the high-voltage line 12 to prevent it from falling off and affecting its use.

[0024] exist Figure 3Middle: A fixing plate 53 is also installed on the inner lower surface of the chassis body 1, and an electric telescopic rod 52 is symmetrically arranged on the upper surface of the fixing plate 53. The telescopic end of the electric telescopic rod 52 is connected to a connecting plate 51, and the connecting plate 51 is installed on the lower surface of the isolation frame 5 by screws. This setting utilizes the operation of the electric telescopic rod 52 to adjust the position of the isolation frame 5, thereby achieving the purpose of isolating and resisting interference with the high-voltage line 12.

[0025] exist Figure 2 Middle: The lower surface of the sealing plate 34 is symmetrically provided with latches 342, and the upper surface of the heat sink 3 is provided with latch holes that engage with the latches 342. This arrangement utilizes the latches 342 to be embedded in the latch holes to achieve the purpose of positioning and installing the sealing plate 34 and the heat sink 3.

[0026] exist Figure 2 Middle: The lower surface of the heat sink 3 is symmetrically provided with an air outlet duct 32, and the upper surface of the sealing plate 34 is provided with an air inlet hole 341. This arrangement utilizes the air outlet duct 32 to allow the air entering the heat sink 3 to pass into the interior of the chassis body 1, thereby achieving the purpose of dissipating heat for the high-voltage circuit 12.

[0027] exist Figure 4 Middle: A mounting hole is opened on the upper surface of the positioning sleeve 43, and the lower end of the adjusting screw 42 is embedded in the mounting hole and threadedly connected to the mounting hole. This setting utilizes the threaded connection between the adjusting screw 42 and the positioning sleeve 43, so that the position of the positioning sleeve 43 can be adjusted to position the high-voltage line 12.

[0028] exist Figure 4 Middle: A groove 431 is provided on the inner side of the positioning sleeve 43, a pressure plate sleeve 44 is arranged inside the groove 431, a rotating rod 442 is provided on the outer side of the positioning sleeve 43, a bearing 441 is provided on the outer side of the pressure plate sleeve 44, one end of the rotating rod 442 is embedded in the bearing 441 and is rotatably connected to the bearing 441. This arrangement utilizes the rotation of the rotating rod 442 to move the pressure plate sleeve 44, thereby achieving the purpose of positioning the high-voltage line 12.

[0029] The working principle of the utility model is as follows: when the utility model is used, the adjusting screw 42 and the fixing rod 41 are firstly threadedly rotated to adjust the position of the positioning sleeve 43, and the strong electric line 12 is passed through the positioning sleeve 43 after adjustment. After passing through, the rotating rod 442 is rotated, so that the pressure plate sleeve 44 can position the strong electric line 12, ensure the stability of the strong electric line 12, and prevent the strong electric line 12 from falling off and affecting the use. At the same time, when isolating, the electric telescopic rod 52 symmetrically arranged on the upper surface of the starting fixing plate 53 can make the isolation frame 5 close to the strong electric line The line 12 is isolated to prevent other high-voltage lines 12 from being damaged when a single high-voltage line 12 is damaged. When the high-voltage line 12 needs to be cooled, the fan 311 inside the heat sink 3 works, so that external air enters the heat sink 3 through the air inlet 341, and impurities in the air are filtered through the filter 33, thereby preventing dust in the air from entering the interior of the chassis body 1 and causing damage to the high-voltage line 12. The sealing plate 34 is connected to the heat sink 3, so that the filter 33 inside can be easily disassembled and replaced for easy use.

[0030] What is described above 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-interference instrument box internal strong current line isolation device, comprising a box body (1), a box door (2) hinged on the front surface of the box body (1), a power receiving seat (11) arranged on the inner side of the box body (1), a strong current line (12) symmetrically arranged on one side of the box body (1), and a discharge seat (13) installed on the outer side of the box body (1), characterized in that: A heat sink (3) is installed on the upper surface of the chassis body (1), a sealing plate (34) is clamped on the upper surface of the heat sink (3), and a filter (33) is also arranged inside the heat sink (3), a mounting plate (31) is installed inside the heat sink (3) below the filter (33), and a fan (311) is symmetrically arranged on the upper surface of the mounting plate (31); The inner upper surface of the chassis body (1) is also provided with a wire clamping mechanism (4), the wire clamping mechanism (4) comprising a fixing rod (41) mounted on the inner upper surface of the chassis body (1), the lower end of the fixing rod (41) being threadedly connected to an adjusting screw (42), the lower end of the adjusting screw (42) being connected to a positioning sleeve (43), and the positioning sleeve (43) being sleeved on the outside of the high-voltage line (12).

2. According to claim 1, the anti-interference instrument box internal strong current line isolation device is characterized in that: A fixing plate (53) is also installed on the inner lower surface of the chassis body (1), and an electric telescopic rod (52) is symmetrically arranged on the upper surface of the fixing plate (53). The telescopic end of the electric telescopic rod (52) is connected to a connecting plate (51), and the connecting plate (51) is installed on the lower surface of the isolation frame (5) by means of screws.

3. The anti-interference instrument box internal strong current line isolation device according to claim 1 is characterized in that: The lower surface of the sealing plate (34) is symmetrically provided with latch pins (342), and the upper surface of the heat dissipation box (3) is provided with latch holes that are engaged with the latch pins (342).

4. The anti-interference instrument box internal strong current line isolation device according to claim 1 is characterized in that: The lower surface of the heat dissipation box (3) is symmetrically provided with air outlet pipes (32), and the upper surface of the sealing plate (34) is provided with air inlet holes (341).

5. The anti-interference instrument box internal strong current line isolation device according to claim 1 is characterized in that: A mounting hole is formed on the upper surface of the positioning sleeve (43), and the lower end of the adjusting screw (42) is embedded in the mounting hole and is threadedly connected to the mounting hole.

6. The anti-interference instrument box internal strong current line isolation device according to claim 1 is characterized in that: A groove (431) is provided on the inner side of the positioning sleeve (43), a pressure plate sleeve (44) is provided inside the groove (431), a rotating rod (442) is provided on the outer side of the positioning sleeve (43), a bearing (441) is provided on the outer side of the pressure plate sleeve (44), and one end of the rotating rod (442) is embedded in the interior of the bearing (441) and is rotatably connected to the bearing (441).

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