A breathing explosion-proof box

Abstract

The present invention discloses a breathing explosion-proof box, comprising a box body, an air bag is arranged in the box body, a first exhaust fan and a second exhaust fan are connected to the box body, the first exhaust fan is connected to the air inlet of the air bag through an air inlet pipe, the second exhaust fan is connected to the air outlet of the air bag through an air outlet pipe, a heat dissipation fan is rotatably connected in the box body, a baffle is slidably connected in the box body, the baffle is arranged corresponding to the air bag, and the baffle drives the heat dissipation fan through a transmission device. Advantages of the present invention: the device takes away the heat in the box body through the breathing of the air bag, and drives the rotation of the heat dissipation fan through the breathing of the air bag, accelerates the air flow in the box body, and accelerates the heat exchange between the hot air in the box body and the air bag, thereby realizing the rapid heat dissipation of the explosion-proof box.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof equipment, in particular to a breathing type explosion-proof box. Background Art

[0002] The electrical components in the explosion-proof box will continuously emit heat when working. Over time, the temperature inside the explosion-proof box will become very high. Therefore, the existing explosion-proof box cannot quickly and effectively dissipate the heat of the electrical components in the explosion-proof box. Even if a ventilation device is installed to dissipate the heat of the electrical components, it will greatly increase the probability of contact between the inside of the explosion-proof box and the external gas, resulting in an increased probability of explosion of the electrical components in the explosion-proof box. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a breathing type explosion-proof box.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A breathing explosion-proof box comprises a box body, an air bag is arranged in the box body, a first exhaust fan and a second exhaust fan are connected to the box body, the first exhaust fan is connected to the air inlet of the air bag through an air inlet pipe, the second exhaust fan is connected to the air outlet of the air bag through an air outlet pipe, a heat dissipation fan is rotatably connected in the box body, a baffle is slidably connected in the box body, the baffle is arranged corresponding to the air bag, and the baffle drives the heat dissipation fan through a transmission device.

[0006] Preferably, a partition is connected inside the box body, the partition body divides the box body into an installation cavity and a ventilation cavity, and the ventilation cavity is connected to the second exhaust fan and the first exhaust fan through the first air supply pipe and the second air supply pipe respectively.

[0007] Preferably, the partition is an L-shaped plate, and the cross section of the partition is wavy.

[0008] Preferably, a cooling box is connected to the box body, and a second air pipe passes through the cooling box.

[0009] Preferably, the transmission device includes a meshing rack and a gear, the rack is connected to the baffle, the gear is connected to the cooling fan via a transmission shaft, and the transmission shaft is rotatably connected to the box.

[0010] Preferably, a reset element is connected to the baffle.

[0011] Preferably, a first switch and a second switch are connected inside the box, the first switch is arranged corresponding to the baffle, and the first switch controls the connection to the first exhaust fan, and the second switch is arranged corresponding to the rack, and the second switch controls the connection to the second exhaust fan.

[0012] The advantages of the present invention are as follows: the breathable explosion-proof box provided by the present invention takes away the heat in the box body through the breathing of the airbag, and the breathing of the airbag drives the rotation of the heat dissipation fan to accelerate the air flow in the box body, so that the hot air in the box body and the airbag accelerate the heat exchange, thereby realizing the rapid heat dissipation of the explosion-proof box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the principle structure of a breathing explosion-proof box provided by the present invention;

[0014] Figure 2 It is a partial cross-sectional view of the box;

[0015] Figure 3 It is a schematic diagram of the structure of the cooling box. DETAILED DESCRIPTION

[0016] 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.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] like Figure 1 As shown, a breathing explosion-proof box provided by the present invention includes a box body 1, a partition 1.1 is welded inside the box body 1, the partition 1.1 is an L-shaped plate, and the partition 1.1 divides the box body 1 into an installation cavity 1.2 and a ventilation cavity 1.3. The installation cavity 1.2 is a rectangular cavity, and electrical components are installed in the installation cavity 1.2. The ventilation cavity 1.3 is an L-shaped cavity, so that airflow passes through the ventilation cavity 1.3 to dissipate heat for the electrical components in the installation cavity 1.2, and the cross-section of the partition 1.1 is wavy, so that the surface area of ​​the partition 1.1 is increased, so that the heat in the installation cavity 1.2 is more easily dissipated.

[0019] An airbag 2 is arranged in the installation cavity 1.2, a first exhaust fan 3 is fixed on the vertical side of the box body 1 by bolts, a second exhaust fan 4 is fixed on the upper side of the box body 1 by bolts, the first exhaust fan 3 is connected to the air inlet of the airbag 2 through an air inlet pipe 5, the second exhaust fan 4 is connected to the air outlet of the airbag 2 through an air outlet pipe 6, two through holes are opened at corresponding positions on the box body 1, the two through holes are connected to the installation cavity 1.2, the air inlet pipe 5 and the air outlet pipe 6 pass through the two through holes respectively, cold air is filled into the airbag 2 through the first exhaust fan 3, after the gas in the airbag 2 realizes heat conversion with the hot air in the installation cavity 1.2, the gas in the airbag 2 is extracted by the second exhaust fan 4, and the heat conversion in the box body 1 is realized during the breathing of the airbag 2.

[0020] A first solenoid valve 5.1 is installed on the air inlet pipe 5, and a second solenoid valve 6.1 is connected to the air outlet pipe 6. When the first exhaust fan 3 is started, the second solenoid valve 6.1 is closed to prevent the gas in the airbag 2 from flowing out of the air outlet pipe 6. When the second exhaust fan 4 is started, the first solenoid valve 5.1 is closed to prevent air from entering the airbag 2 from the air inlet pipe 5.

[0021] The first air pipe 1.4 is connected to the air outlet of the second exhaust fan 4, and the first air pipe 1.4 is connected to the ventilation cavity 1.3. The second air pipe 1.5 is connected to the air inlet of the first exhaust fan 3, and the second air pipe 1.5 is connected to the ventilation cavity 1.3. The second exhaust fan 4 extracts the gas in the airbag 2, and then transports it to the ventilation cavity 1.3 through the first air pipe 1.4, and then extracts the gas in the ventilation cavity 1.3 through the second air pipe 1.5, so that the gas flows faster in the ventilation cavity 1.3, thereby driving the heat on the partition 1.1, and further dissipating the heat of the electrical components in the installation cavity 1.2.

[0022] A cooling box 9 is connected to the box body 1, and cooling liquid or cold air is filled in the cooling box 9. In the present embodiment, cold water is filled in the cooling box 9, and a second air pipe 1.5 passes through the cooling box 9. The gas in the second air pipe 1.5 is cooled by the cooling box 9, so that heat can be better exchanged with the electrical components in the installation cavity 1.2. The portion of the second air pipe 1.5 in the cooling box 9 is a serpentine structure, which can increase the time the second air pipe 1.5 is in the cooling box 9 and improve the cooling effect.

[0023] A sliding groove 1.6 is provided at the top of the installation cavity 1.2, and the cross-section of the sliding groove 1.6 is convex. A sliding block 1.7 is slidably connected in the sliding groove 1.6. A baffle 7 is connected below the sliding block 1.7. The baffle 7 is made of insulating material. The baffle 7 can prevent the airbag 2 from contacting the electrical components. The baffle 7 is a hollow plate to facilitate the contact between the hot air in the installation cavity 1.2 and the airbag 2. A mounting groove 1.8 is provided on one side of the sliding groove 1.6. The mounting groove 1.8 is connected to the sliding groove 1.6 through a connecting hole. A guide rod 1.9 is connected on one side of the sliding block 1.7, and the guide rod 1.9 passes through the connecting hole.

[0024] A reset member 7.1 is connected to one side of the sliding block 1.7. The reset member 7.1 is a spring in this embodiment. The spring is sleeved on the guide rod 1.9. One end of the spring is connected to the sliding block 1.7, and the other end of the spring is connected to the corresponding side of the sliding groove 1.6. The baffle 7 can be reset by the spring.

[0025] A mounting hole is provided at the bottom of the mounting groove 1.8, a bearing is installed in the mounting hole, a transmission shaft 8.3 is inserted in the bearing, a cooling fan 8 is connected to the lower side of the transmission shaft 8.3, the cooling fan 8 is located above the mounting cavity 1.2, a transmission device is provided in the mounting groove 1.8, and the guide rod 1.9 drives the cooling fan 8 through the transmission device.

[0026] The transmission device includes a meshing rack 8.1 and a gear 8.2. The rack 8.1 is welded on the guide rod 1.9, and the gear 8.2 is welded on the transmission shaft 8.3. The breathing of the airbag 2 drives the rack 8.1 to move, drives the gear 8.2 to rotate, and the gear 8.2 drives the cooling fan 8 to rotate, so that the cooling fan 8 drives the air in the installation cavity 1.2 to accelerate the flow, thereby increasing the frequency of contact between the air in the installation cavity 1.2 and the airbag 2, and realizing rapid heat conversion.

[0027] A first switch 10 is fixed by bolts on one side of the sliding groove 1.6 close to the sliding block 1.7, and the first switch 10 controls the connection of the first exhaust fan 3. A second switch 11 is fixed by bolts on a side surface of the mounting groove 1.8 away from the sliding groove 1.6, and the second switch 11 controls the connection of the second exhaust fan 4. When the airbag 2 inhales, the airbag 2 expands and drives the rack 8.1 to move and press the second switch 11. The second switch 11 controls the second exhaust fan 4 to start and extract the air in the airbag 2. When the airbag 2 exhales, the airbag 2 shrinks, and the reset member 7.1 drives the sliding block 1.7 to press the first switch 10. The first switch 10 controls the first exhaust fan 3 to start and inflate the airbag 2, so that the airbag 2 can exchange heat in the box body 1 between inhalation and exhalation, thereby reducing the temperature in the box body 1 and effectively protecting the electrical components.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A breathing explosion-proof box, characterized in that: The invention comprises a box body (1), an air bag (2) is arranged in the box body (1), a first exhaust fan (3) and a second exhaust fan (4) are connected to the box body (1), the first exhaust fan (3) is connected to the air inlet of the air bag (2) through an air inlet pipe (5), the second exhaust fan (4) is connected to the air outlet of the air bag (2) through an air outlet pipe (6), a heat dissipation fan (8) is rotatably connected in the box body (1), a baffle (7) is slidably connected in the box body (1), the baffle (7) is arranged corresponding to the air bag (2), and the baffle (7) drives the heat dissipation fan (8) through a transmission device; A partition (1.1) is connected inside the box body (1), the partition (1.1) divides the box body (1) into an installation cavity (1.2) and a ventilation cavity (1.3), the air bag (2) is arranged inside the installation cavity (1.2), the ventilation cavity (1.3) is connected to the second exhaust fan (4) and the first exhaust fan (3) via a first air supply pipe (1.4) and a second air supply pipe (1.5), respectively, the first air supply pipe (1.4) is connected at the air outlet of the second exhaust fan (4), and the second air supply pipe (1.5) is connected at the air inlet of the first exhaust fan (3); The box body (1) is connected to a cooling box (9), and the second air delivery pipe (1.5) passes through the cooling box (9); A sliding groove (1.6) is provided at the top of the installation cavity (1.2), the sliding groove (1.6) has a convex cross-section, a sliding block (1.7) is slidably connected in the sliding groove (1.6), the baffle (7) is connected below the sliding block (1.7), a mounting groove (1.8) is provided on one side of the sliding groove (1.6), the mounting groove (1.8) is connected to the sliding groove (1.6) through a connecting hole, a guide rod (1.9) is connected on one side of the sliding block (1.7), and the guide rod (1.9) passes through the connecting hole; The transmission device comprises a meshing rack (8.1) and a gear (8.2), the rack (8.1) being connected to the baffle (7), the gear (8.2) being connected to the cooling fan (8) via a transmission shaft (8.3), and the transmission shaft (8.3) being rotatably connected to the box body (1); A mounting hole is provided at the bottom of the mounting groove (1.8), a bearing is installed in the mounting hole, the transmission shaft (8.3) is inserted into the bearing, the cooling fan (8) is connected to the lower side of the transmission shaft (8.3), the cooling fan (8) is located at the top of the mounting cavity (1.2), the transmission device is arranged in the mounting groove (1.8), and the guide rod (1.9) drives the cooling fan (8) through the transmission device; The rack (8.1) is welded to the guide rod (1.9), and the gear (8.2) is welded to the transmission shaft (8.3). The breathing of the airbag (2) drives the rack (8.1) to move, drives the gear (8.2) to rotate, and the gear (8.2) drives the cooling fan (8) to rotate; A reset member (7.1) is connected to one side of the sliding block (1.7), the reset member (7.1) being a spring, the spring being sleeved on the guide rod (1.9), one end of the spring being connected to the sliding block (1.7), and the other end of the spring being connected to a corresponding side surface of the sliding groove (1.6); A first switch (10) and a second switch (11) are connected inside the box (1), the first switch (10) being arranged corresponding to the baffle (7), the first switch (10) controlling the connection to the first exhaust fan (3), the second switch (11) being arranged corresponding to the rack (8.1), the second switch (11) controlling the connection to the second exhaust fan (4); The first switch (10) is fixed by bolts on a side of the sliding groove (1.6) close to the sliding block (1.7), and the second switch (11) is fixed by bolts on a side of the mounting groove (1.8) away from the sliding groove (1.6).

2. A breathing explosion-proof box according to claim 1, characterized in that: The partition plate (1.1) is an L-shaped plate, and the cross section of the partition plate (1.1) is wavy.

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