Shielding packaging structure of valve positioner power supply module

Abstract

The utility model relates to the field of shielding packaging structures, in particular to a shielding packaging structure of a valve positioner power supply module, which comprises a sealing box, an antifouling layer is coated on the surface of the sealing box, a shielding net is sleeved inside the sealing box, a heat conduction layer is coated on the inner wall of the sealing box, and the heat conduction layer is coated on the outer wall of the sealing box. Two sets of supporting rods are fixedly connected to the inner wall of the sealing box, two sets of sliding seats are slidably connected to the surfaces of the supporting rods, transmission rods are rotatably connected to one sides of the sliding seats, movable bolts are rotatably connected to one ends of the transmission rods, and supporting springs are fixedly connected to the surfaces of the sliding seats. One side of the movable bolt is fixedly connected with a power supply circuit board, one side of the power supply circuit board is fixedly connected with four groups of damping hydraulic rods, and the shielding packaging structure of the valve positioner power supply module achieves the functions of heat dissipation, fire prevention and radiation interference resistance through the arrangement of an antifouling layer, a shielding net and a heat conduction layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to shielding packaging structure field, concretely is a kind of shielding packaging structure of valve positioner power module. BACKGROUND

[0002] The shielding packaging structure of valve positioner power module is to ensure the stability, reliability and anti-interference ability of power module in working process. Especially in industrial environment, valve positioner power module often faces strong electromagnetic interference (EMI) and environmental influence, electromagnetic interference is a common problem in modern industrial equipment, shielding packaging needs to effectively isolate the electromagnetic signal inside power module, prevent external electromagnetic wave from entering module interior and affecting power supply work, or module electromagnetic signal exfiltration interferes other equipment.

[0003] The shielding packaging structure of previous valve positioner power module is difficult to have the functions of not easy to adhere to contaminants, heat dissipation, fire prevention and anti-radiation interference when in use, so that the device is easily damaged.

[0004] Therefore, we propose a kind of shielding packaging structure of valve positioner power module to solve the above problems. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a kind of shielding packaging structure of valve positioner power module.

[0006] The shielding packaging structure of valve positioner power module provided by the utility model, including sealed box, the surface of the sealed box is coated with dirt-proof layer, the inside of the sealed box is sleeved with shielding net, the inner wall of the sealed box is coated with heat conducting layer, the inner wall of the sealed box is fixedly connected with two groups of support rods, the surface of the support rod is slidably connected with two groups of sliding seats, the side of the sliding seat is rotatably connected with transmission rod, the end of the transmission rod is rotatably connected with movable peg, the surface of the sliding seat is fixedly connected with support spring.

[0007] Preferably, the side of the movable peg is fixedly connected with power circuit board, the side of the power circuit board is fixedly connected with four groups of damping hydraulic rods.

[0008] Preferably, the surface of the damping hydraulic rod is sleeved with buffer spring, and the buffer spring is fixedly connected to the inner wall of the sealed box.

[0009] Preferably, the material of the dirt-proof layer is nano-silicon negative ion coating, and the material of the heat conducting layer is heat-conducting fire-retardant silica gel.

[0010] Preferably, the front of the sealed box is clamped with cover, and the inside of the shielding net is provided with through hole matched with buffer spring.

[0011] Preferably, one side of the sealing box is fixedly connected with a fixed plate, and one side of the fixed plate is fixedly installed with a connecting circuit board through bolts.

[0012] Compared with the related art, the utility model provides the following beneficial effects:

[0013] 1. Through the setting of the anti-fouling layer, the shielding net and the heat conduction layer, in use, the material of the anti-fouling layer is nano silicon negative ion paint, has the characteristics of not easy to adhere to pollutants, can effectively resist the adhesion of rainwater, dust and other pollutants, the special structure formed on the surface makes it difficult for water and stains to stay, reduces the trouble and cost of daily cleaning, the shielding net can effectively isolate high-frequency signals, ensures that the power module is not interfered by external high-frequency electromagnetic waves, meanwhile, the material of the heat conduction layer is heat-conducting and flame-retardant silica gel, the silica gel usually contains heat-conducting fillers such as aluminum oxide and graphite, can improve the heat conductivity, has good heat conduction performance, can effectively dissipate heat, prevents equipment overheating, and has components such as silicon oxide inside, can form inorganic substances at high temperatures, effectively isolates the contact between burning substances and external oxygen, reduces the expansion of fire, thereby achieving the functions of heat dissipation, fire prevention and anti-radiation interference;

[0014] 2. Through the setting of the support rod, the sliding seat, the transmission rod, the movable bolt and the support spring, in use, when the shielding packaging structure is impacted by external force, the power circuit board shakes in the sealing box, the force generated by vibration makes the power circuit board push the movable bolt, the transmission rod rotates on the surface of the movable bolt and the sliding seat, since the movable bolt is fixed, the sliding seat slides on the surface of the support rod, thereby extruding the support spring, the support spring is contracted under stress to generate elastic force, meanwhile, the damping hydraulic rod is contracted under stress, the buffer spring generates elastic force under stress, thereby achieving the effect of buffering and damping the power circuit board, reducing the impact on the power circuit board, and improving the safety and stability of the shielding packaging structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall structure schematic view of the utility model;

[0016] Fig. 2 It is a split structure schematic view of the utility model;

[0017] Fig. 3 It is an anti-fouling layer, shielding net and heat conduction layer structure schematic view of the utility model;

[0018] Fig. 4 It is a support rod, sliding seat, transmission rod, movable bolt and support spring structure schematic view of the utility model.

[0019] The figure mark: 1, sealed box; 2, antifouling layer; 3, shielding net; 4, heat conduction layer; 5, support rod; 6, sliding seat; 7, transmission rod; 8, movable bolt; 9, support spring; 10, power supply circuit board; 11, damping hydraulic rod; 12, buffer spring; 13, cover; 14, fixed plate; 15, connecting circuit board. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings and embodiments.

[0021] Please combine with reference to Figs. 1 to 4 A shielding packaging structure of a valve positioner power module, comprising a sealed box 1, the surface of the sealed box 1 is coated with an antifouling layer 2, the sealed box 1 is sleeved with a shielding net 3 inside, the inner wall of the sealed box 1 is coated with a heat conduction layer 4, through the setting of the antifouling layer 2, the shielding net 3 and the heat conduction layer 4, in use, the material of the antifouling layer 2 is nano silicon negative ion paint, which has the characteristics of not easily adhering to pollutants, can effectively resist the adhesion of pollutants such as rainwater and dust, the special structure formed on its surface makes it difficult for water and stains to stay, reducing the trouble and cost of daily cleaning, the shielding net 3 can effectively isolate high-frequency signals, ensuring that the power module is not disturbed by external high-frequency electromagnetic waves, at the same time, the material of the heat conduction layer 4 is heat-conducting and flame-retardant silica gel, which usually contains heat-conducting fillers such as aluminum oxide and graphite, can improve the heat conduction, has good heat conduction performance, can effectively dissipate heat, prevent equipment from overheating, and has components such as silicon oxide inside, can form inorganic substances at high temperatures, effectively isolate the contact between burning substances and external oxygen, reduce the expansion of fire, so as to achieve the functions of heat dissipation, fire prevention and anti-radiation interference, the inner wall of the sealed box 1 is fixedly connected with two groups of support rods 5, the surface of the support rod 5 is slidably connected with two groups of sliding seats 6, one side of the sliding seat 6 is rotatably connected with a transmission rod 7, one end of the transmission rod 7 is rotatably connected with a movable bolt 8, and the surface of the sliding seat 6 is fixedly connected with a support spring 9, in use, when the shielding packaging structure is impacted by external force, the power supply circuit board 10 shakes in the sealed box 1, the force generated by vibration makes the power supply circuit board 10 push the movable bolt 8, the transmission rod 7 rotates on the surface of the movable bolt 8 and the sliding seat 6, since the movable bolt 8 is fixed, the sliding seat 6 slides on the surface of the support rod 5, and then the support spring 9 is extruded, so that the support spring 9 is contracted under stress to generate elastic force.

[0022] Especially worth mentioning is that one side of the movable bolt 8 is fixedly connected with the power supply circuit board 10, one side of the power supply circuit board 10 is fixedly connected with four groups of damping hydraulic rods 11, the damping hydraulic rods 11 are sleeved with buffer springs 12 on the surfaces, and the buffer springs 12 are fixedly connected to the inner wall of the sealing box 1. When the shielding packaging structure is impacted by external force, the damping hydraulic rods 11 are also forced to shrink, and the buffer springs 12 generate elastic force under the force, so that the effect of buffering and damping on the power supply circuit board 10 is achieved, the impact on the power supply circuit board 10 is reduced, and the safety and stability of the shielding packaging structure are improved.

[0023] The material of the anti-fouling layer 2 is nano-silicon negative ion paint, the material of the heat conduction layer 4 is heat-conducting flame-retardant silica gel, the material of the anti-fouling layer 2 is nano-silicon negative ion paint, has the characteristics of not easily adhering pollutants, can effectively resist the adhesion of pollutants such as rainwater and dust, the special structure formed on the surface makes it difficult for water and stains to stay, reduces the trouble and cost of daily cleaning, the material of the heat conduction layer 4 is heat-conducting flame-retardant silica gel, the silica gel usually contains heat-conducting fillers such as aluminum oxide and graphite, which can improve the heat conduction and have good heat conduction performance, and at high temperature, inorganic substances can be formed, effectively isolating the contact between combustion substances and external oxygen, reducing the expansion of fire.

[0024] In addition, the sealing box 1 is clamped with a cover 13 on the front surface, the shielding net 3 is provided with through holes matched with the buffer springs 12 in the inside, the sealing box 1 is fixedly connected with a fixed plate 14 on one side, and the fixed plate 14 is fixedly installed with a connecting circuit board 15 on one side through bolts, the cover 13 facilitates opening of the sealing box 1, avoids dust and impurities from entering the inside, the through holes facilitate the buffer springs 12 to pass through the support power supply circuit board 10, the fixed plate 14 is convenient for connecting and supporting the sealing box 1, and the connecting circuit board 15 is convenient for connecting external equipment.

[0025] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A shielded packaging structure for a valve positioner power module, characterized in that, The device includes a sealed box (1), the surface of which is coated with an anti-fouling layer (2), a shielding mesh (3) is fitted inside the sealed box (1), the inner wall of the sealed box (1) is coated with a heat-conducting layer (4), two sets of support rods (5) are fixedly connected to the inner wall of the sealed box (1), two sets of sliding seats (6) are slidably connected to the surface of the support rods (5), a transmission rod (7) is rotatably connected to one side of the sliding seat (6), a movable bolt (8) is rotatably connected to one end of the transmission rod (7), and a support spring (9) is fixedly connected to the surface of the sliding seat (6).

2. The shielded packaging structure of a valve positioner power module according to claim 1, characterized in that, A power circuit board (10) is fixedly connected to one side of the movable bolt (8), and four sets of damping hydraulic rods (11) are fixedly connected to one side of the power circuit board (10).

3. The shielded packaging structure of a valve positioner power module according to claim 2, characterized in that, A buffer spring (12) is sleeved on the surface of the damping hydraulic rod (11), and the buffer spring (12) is fixedly connected to the inner wall of the sealing box (1).

4. The shielded packaging structure of a valve positioner power module according to claim 1, characterized in that, The anti-fouling layer (2) is made of nano-silicon negative ion coating, and the thermally conductive layer (4) is made of thermally conductive and flame-retardant silicone.

5. The shielded packaging structure of a valve positioner power module according to claim 1, characterized in that, The sealing box (1) has a cover (13) snapped onto its front side, and the shielding mesh (3) has through holes that are compatible with the buffer spring (12) inside.

6. The shielded packaging structure of a valve positioner power module according to claim 1, characterized in that, A fixing plate (14) is fixedly connected to one side of the sealing box (1), and a connecting circuit board (15) is fixedly installed on one side of the fixing plate (14) by bolts.

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