Adaptive heat dissipation type JP cabinet

Abstract

The application relates to a self-adaptive heat dissipation type JP cabinet, in particular to the technical field of power distribution cabinets, which comprises an outer cabinet, an inner cabinet and a cabinet door, the surface of the outer cabinet is detachably connected with a fan frame, the fan frame is internally provided with heat dissipation fans; the surface of the outer cabinet is also detachably connected with waterproof parts, the waterproof parts are connected with air guide parts on the side close to the fan frame and the two parts are internally communicated; the air guide parts comprise a cover plate and two air guide plates, the opposite sides of the two air guide plates are provided with bimetal sheets which can be deformed and then approach each other, and the surface of the bimetal sheets is provided with pressure sensors connected with the heat dissipation fans. The application can realize self-adaptive heat dissipation, has good waterproof and dustproof effects and can reduce vibration.

Description

Technical Field

[0001] This application relates to the field of power distribution cabinet technology, and in particular to an adaptive heat dissipation type JP cabinet. Background Technology

[0002] In the field of power distribution cabinet technology, with the continuous development and upgrading of power systems, various types of power distribution cabinets play a crucial role in ensuring stable power supply and normal equipment operation. JP cabinets, as a common type of power distribution cabinet, are widely used in various power distribution scenarios. They can effectively centrally distribute and control electrical energy, providing safe and reliable power support for different electrical devices. In actual use, the electrical components inside the JP cabinet generate a large amount of heat during operation. If this heat cannot be dissipated in time, it will cause the cabinet temperature to rise, affecting the performance and lifespan of the electrical components, and even leading to safety accidents.

[0003] In related technologies, a common method is to install a regular cooling fan on the JP cabinet. The fan's operation accelerates airflow, carrying away heat from inside the cabinet. Some solutions involve creating ventilation holes in the cabinet, utilizing natural convection to dissipate heat. Additionally, some designs employ heat sinks to increase the heat dissipation area and improve efficiency. Furthermore, some designs incorporate external sunshades or similar devices to reduce the impact of direct sunlight on the internal temperature.

[0004] Ordinary cooling fans cannot automatically adjust their cooling efficiency based on actual temperature changes inside the cabinet. They either run at high speed continuously when high-intensity cooling is not required, resulting in energy waste, or their cooling capacity is insufficient when the temperature rises. Relying solely on natural convection through ventilation holes is slow, especially in high-temperature environments or when electrical components are under heavy load, making it difficult to meet cooling demands. While adding heat sinks can increase the heat dissipation area, their adaptability to rapidly changing temperature environments is poor. Summary of the Invention

[0005] In order to improve the adaptability of the JP cabinet to temperature environment, this application provides an adaptive heat dissipation type JP cabinet.

[0006] An adaptive heat dissipation type JP cabinet includes an outer cabinet, an inner cabinet, and a cabinet door.

[0007] A fan bracket is detachably connected to the surface of the outer cabinet, and a cooling fan is installed inside the fan bracket;

[0008] The outer cabinet surface is detachably connected to a waterproof component, and an air guide is connected to the side of the waterproof component near the fan frame. The waterproof component and the air guide are internally connected.

[0009] The air guide component includes a cover plate, which is placed on the fan frame. Two air guide plates are connected to one side of the cover plate, and the cover plate is connected to the waterproof component through an arc plate.

[0010] Bimetallic strips are provided on opposite sides of the two air guide plates, and the two bimetallic strips move closer to each other after deformation;

[0011] A pressure sensor is mounted on the surface of the bimetallic strip, and the pressure sensor is connected to the cooling fan.

[0012] By adopting the above technical solution, the fan bracket and waterproof components are detachably connected to the surface of the outer cabinet, facilitating maintenance or replacement of the fan bracket and waterproof components; a cooling fan is installed inside the fan bracket to achieve heat dissipation for both the outer and inner cabinets; the waterproof components are internally connected to the air guide components to ensure normal airflow; a cover plate is placed on the fan bracket to protect the fan bracket and cooling fan; the air guide plate guides the airflow direction; two bimetallic strips deform and move closer to each other, changing the width of the air duct and increasing the flow rate of the air entering the air inlet; a pressure sensor is connected to the cooling fan, which can adaptively adjust the speed of the cooling fan according to the wind pressure changes generated by the deformation of the bimetallic strips, thereby improving heat exchange efficiency.

[0013] Optionally, the bimetallic sheet is a nickel-titanium shape memory alloy sheet with a deformation temperature of 40-60℃.

[0014] By adopting the above technical solution, the bimetallic sheet is made of nickel-titanium shape memory alloy with a deformation temperature of 40-60℃. When the external temperature rises to this range, the bimetallic sheet will deform and bend, causing the two bimetallic sheets to move closer to each other, reducing the width of the air inlet, thereby increasing the airflow velocity entering the air inlet. At the same time, the wind pressure on the pressure sensor increases and triggers a synchronous increase in the speed of the cooling fan. The increased airflow velocity can also increase the blade speed of the cooling fan, thereby improving the heat exchange efficiency between the outer and inner cabinets.

[0015] Optionally, the fan bracket includes two "U"-shaped fixing plates with anti-vibration rubber pads connected inside the fixing plates, and the cooling fan is mounted on the rubber pads.

[0016] By adopting the above technical solution, the cooling fan and the outer cabinet can be detachably connected, which facilitates the maintenance and replacement of the cooling fan. The anti-vibration rubber pad can reduce the vibration generated by the cooling fan during operation and transmit it to the outer cabinet, thereby reducing the impact of external vibration on the electrical components in the inner cabinet.

[0017] Optionally, the waterproof component includes two side plates detachably connected to the cover plate, with a first arc plate and a second arc plate disposed between the two side plates. The second arc plate covers the first arc plate, and a gap is provided between the first arc plate and the second arc plate, which cooperate to form two air inlets on the side away from the fan frame. Dustproof plates are provided on the first arc plate and the second arc plate at the air inlets.

[0018] By adopting the above technical solution, the side panels on the upper surface of the cover plate are easy to disassemble and convenient for maintenance and replacement; the gap between the first arc plate and the second arc plate forms an air inlet, which can guide the airflow on both sides to converge in the air inlet to increase the inflow velocity; the dustproof plate at the air inlet can block dust from entering and reduce the impact of dust on the heat dissipation system and electrical components inside the cabinet.

[0019] Optionally, an air outlet is provided at the curved part of the second arc plate. The second arc plate is connected to the air guide plate at the air outlet. The two sides of the air guide plate are connected to the side plates at the corresponding positions. The two air guide plates and side plates work together to form a unidirectional air duct.

[0020] By adopting the above technical solution, an air outlet is opened at the curved part of the second arc plate and connected to the air guide plate. The air guide plate is connected to the side plate on both sides to form a one-way air duct, which allows the first arc plate, the second arc plate and the air guide plate to cooperate to form a specific air duct, so that the airflow converges in the air inlet duct and increases the flow rate.

[0021] Optionally, the air guide plate is arc-shaped, and the arc-shaped protruding surfaces of the two air guide plates are close to each other. An adjustment groove is opened on the arc-shaped surface of the air guide plate, and the bimetallic strip is installed in the adjustment groove. The adjustment groove is connected to one end of the bimetallic strip near the inner wall of the waterproof component. The pressure sensor is located on the arc-shaped surface of the bimetallic strip near the cover plate.

[0022] By adopting the above technical solution, the air guide plate is arc-shaped with the arc-shaped protruding surfaces close to each other. An adjustment groove is opened on the arc-shaped surface to install a bimetallic strip. The adjustment groove is connected to one end of the bimetallic strip near the inner wall of the waterproof component. The pressure sensor is set on the arc-shaped surface of the bimetallic strip near the cover plate, which facilitates the change of the air duct width when the bimetallic strip deforms, thereby increasing the flow rate of the airflow entering the air inlet. The pressure sensor is triggered by the increase in wind pressure to synchronously increase the speed of the cooling fan, thereby improving the heat exchange efficiency between the outer cabinet and the inner cabinet.

[0023] Optionally, the outer cabinet is equipped with a fully hollowed-out mounting frame with a mounting groove inside, and the inner cabinet is installed in the mounting groove; a sealing ring is connected to the door, the sealing ring matches the size of the inner cabinet, and when the door is closed, the sealing ring extends into the inner cabinet and abuts against the inner wall of the inner cabinet.

[0024] By adopting the above technical solution, the hollow mounting frame can provide vibration reduction for the inner cabinet, reduce the impact of external vibration on the electrical components in the inner cabinet, and form an air duct for heat dissipation between the inner cabinet and the outer cabinet; when the cabinet door is closed, the sealing ring extends into the inner cabinet and abuts against the inner wall of the inner cabinet, which can separate the internal space of the inner cabinet from the internal space of the outer cabinet and improve the sealing performance of the inner cabinet.

[0025] Optionally, the inner cabinet is equipped with a conduit that runs through both the inner and outer cabinets. A dust cover is installed inside the conduit, and external wires are passed through the dust cover before extending into the inner cabinet. An exhaust pipe is installed outside the conduit and embedded in the outer cabinet. The exhaust pipe has several exhaust holes.

[0026] By adopting the above technical solution, the conduit runs through the inner and outer cabinets and is equipped with a dust cover, allowing external wires to pass through the dust cover and extend into the inner cabinet, with the dust cover abutting against the wires to prevent dust. The conduit is also fitted with an exhaust pipe and has several exhaust holes, which can create negative pressure at the exhaust outlet and improve heat exchange efficiency.

[0027] Optionally, the dustproof plate is a louvered baffle with blades tilted downwards at 30°-45° and pointing outwards from the waterproof component. By adopting the above technical solution, the dustproof plate with louvered baffles and blades tilted downwards at 30°-45° and pointing outwards from the waterproof component can prevent dust from entering, and if rainwater accidentally enters, it can be discharged along the tilted blades, and can also guide airflow smoothly into the air duct.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. The cooling fan installed on the outer cabinet can generate airflow between the outer and inner cabinets to dissipate heat and cool the surface of the inner cabinet. When the ambient temperature rises, the bimetallic strips deform and bend, causing the two bimetallic strips to move closer together, reducing the width of the air inlet and increasing the airflow velocity entering the air inlet. At the same time, the pressure sensor is triggered by the increase in wind pressure to synchronously increase the speed of the cooling fan, improving the heat exchange efficiency between the outer and inner cabinets. This enables automatic adjustment of heat dissipation efficiency according to the ambient temperature, avoiding energy waste and insufficient heat dissipation capacity.

[0030] 2. The waterproof components prevent rainwater from entering the outer cabinet, and the dustproof plate at the air inlet of the waterproof components prevents dust from entering, solving the problem that the existing solution did not consider waterproofing and dustproofing, and ensuring the normal operation of electrical components;

[0031] 3. The mounting bracket is made of rubber, which can provide vibration damping for the inner cabinet and reduce the impact of external vibration on the electrical components inside the cabinet. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this application;

[0033] Figure 2 This is an exploded structural diagram of this application, mainly showing the mounting bracket;

[0034] Figure 3 This is a structural schematic diagram of the ventilation duct in this application, mainly showing the exhaust port;

[0035] Figure 4This is a schematic diagram of the heat dissipation device of this application;

[0036] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure along the AA plane in the middle;

[0037] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0038] Attached diagram descriptions: 1. Outer cabinet; 2. Inner cabinet; 3. Mounting bracket; 4. Mounting slot; 5. Cabinet door; 6. Sealing strip; 7. Sealing ring; 8. Cable conduit; 9. Dust cover; 10. Exhaust duct; 11. Exhaust hole; 12. Fixing plate; 13. Rubber pad; 14. Cooling fan; 15. Cover plate; 16. Air guide block; 17. Side plate; 18. Air guide plate; 19. Adjustment slot; 20. Bimetallic strip; 21. Pressure sensor; 22. First arc-shaped plate; 23. Second arc-shaped plate; 24. Dustproof plate. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0040] An adaptive heat dissipation type JP cabinet, as shown in the reference Figure 1 It includes an outer cabinet 1 that is fixedly installed on a utility pole. The outer cabinet 1 is equipped with a heat dissipation device, which can automatically adjust the heat dissipation efficiency according to the ambient temperature.

[0041] Reference Figure 1 , Figure 2 An installation bracket 3 is fixedly connected inside the outer cabinet 1. The installation bracket 3 is hollow and has three mounting slots 4. Each mounting slot 4 is fixedly connected to an inner cabinet 2 by screws, and adjacent inner cabinets 2 are spaced apart. In addition, the inner cabinets 2 and the outer cabinet 1 are separated by the installation bracket 3. At the same time, the installation bracket 3 is made of rubber, which provides vibration damping for the inner cabinets 2, reduces the impact of external vibration on the electrical components in the inner cabinets 2, and forms an air duct for heat dissipation between the inner cabinets 2 and the outer cabinet 1.

[0042] The outer cabinet 1 has three rotating doors 5 connected to its opening. Each door 5 is fixedly connected to a ring-shaped sealing strip 6, and a sealing ring 7 is fixedly connected to the same side of the sealing strip 6 on each door 5. When the doors 5 are closed, the sealing strip 6 abuts against the inner wall of the outer cabinet 1, thus separating the outer cabinet 1 from the outside world and preventing rainwater from entering. The sealing ring 7 extends into the inner cabinet 2 and abuts against its inner wall, thus separating the internal space of the inner cabinet 2 from the internal space of the outer cabinet 1 and improving the airtightness of the inner cabinet 2.

[0043] Reference Figure 2 , Figure 3 A conduit 8 is fixedly connected to the lower end of the inner cabinet 2. The conduit 8 passes through the bottom surface of the inner cabinet 2, the mounting bracket 3, and the bottom surface of the outer cabinet 1 in sequence, with one end of the conduit 8 flush with the bottom surface of the outer wall of the outer cabinet 1. A rubber dust cover 9 is fixedly connected inside the conduit 8. External wires pass through the dust cover 9 and extend into the inner cabinet 2, connecting with the electrical components installed inside the inner cabinet 2. The dust cover 9 abuts against the guide side wall. An exhaust pipe 10 is fitted over the conduit 8. The outer wall of the exhaust pipe 10 is fixedly connected to the outer cabinet 1. Several exhaust holes 11 are opened on the exhaust pipe 10, and the exhaust holes 11 are arranged in a spiral to increase the airflow velocity at the exhaust holes 11, creating a negative pressure at the exhaust outlet of the exhaust holes 11, thereby improving the efficiency of heat exchange.

[0044] Reference Figure 2 , Figure 4 , Figure 5 The outer cabinet 1 has an opening on its bottom surface, and a fan bracket is fixedly connected to the outer cabinet 1 at the opening. The fan bracket includes two "U"-shaped fixing plates 12, one side of which is detachably connected to the surface of the outer cabinet 1 by screws. In addition, a rubber pad 13 for vibration damping is fixedly connected to the concave inner wall of the fixing plate 12. Multiple cooling fans 14 are fixedly connected to the rubber pad 13 near the bottom surface of the fixing plate 12 by screws, so that the airflow generated by the cooling fans 14 can flow between the outer cabinet 1 and the inner cabinet 2, and dissipate heat and cool the surface of the inner cabinet 2.

[0045] Two fixed plates 12 are covered with cover plates 15. The cross-section of the cover plate 15 is "U"-shaped, and the two short plates of the cover plate 15 are respectively connected to the two sides of the corresponding fixed plates 12 by screws. At the same time, the long plate of the cover plate 15 and the surface of the two fixed plates 12 away from the outer cabinet 1 cooperate to form two air inlets. Furthermore, a guide block 16 is fixedly connected to the long plate of the cover plate 15. The two sides of the guide block 16 smoothly transition with the surface of the cover plate 15, and the guide block 16 is coated with a lubricating coating. Meanwhile, the end of the guide block 16 is close to the cooling fan 14, so that the airflow flowing in from the air inlet can flow along the surface of the guide block 16 and smoothly contact the cooling fan 14.

[0046] The short plate surface of the cover plate 15 is connected to two side plates 17 by screws, and two air guide plates 18 are connected between the two side plates 17 by screws. The cover plate 15 and the fixing plate 12 are both fixedly connected to connecting plates, and the two connecting plates are arranged opposite each other. The air guide plate 18 is fixed to one of the connecting plates by screws. After installation, the two air guide plates 18 and the two side plates 17 cooperate to form an air inlet at one side air inlet.

[0047] Reference Figure 2 , Figure 5 , Figure 6Both air guide plates 18 have arc-shaped protrusions, and these protrusions are close to each other. An adjustment groove 19 is formed on the arc-shaped protrusion of each air guide plate 18. A bimetallic strip 20 is fixedly connected to the inner wall of the adjustment groove 19 on the side away from the cover plate 15. The bimetallic strip 20 is made of nickel-titanium shape memory alloy with a deformation temperature of 40-60℃. Furthermore, the surface of the bimetallic strip 20 and the inner wall of the adjustment groove 19 are coated with a wear-resistant coating to reduce frictional damage between the bimetallic strip 20 and the inner wall of the adjustment groove 19 during deformation. In addition, a pressure sensor 21 is fixedly connected to the arc-shaped surface of the bimetallic strip 20 near the cover plate 15, and the pressure sensor 21 is electrically connected to the cooling fan 14. When the outside temperature rises, the bimetallic strip 20 deforms and bends, and the two bimetallic strips 20 move closer to each other, reducing the width of the air inlet channel, thereby increasing the flow rate of the airflow entering the air inlet. At the same time, the wind pressure on the pressure sensor 21 increases and triggers a synchronous increase in the speed of the cooling fan 14. The increased airflow speed can also increase the blade speed of the cooling fan 14, thereby improving the heat exchange efficiency between the outer cabinet 1 and the inner cabinet 2.

[0048] Reference Figure 4 , Figure 5 A first arc-shaped plate 22 and a second arc-shaped plate 23 are connected between the two side plates 17 by screws. The cross-sections of the first arc-shaped plate 22 and the second arc-shaped plate 23 are U-shaped. The first arc-shaped plate 22 and the second arc-shaped plate 23 are arranged in the same direction, with the second arc-shaped plate 23 covering the first arc-shaped plate 22. A gap is provided between the first arc-shaped plate 22 and the second arc-shaped plate 23, and the sides of the first arc-shaped plate 22 and the second arc-shaped plate 23 away from the cover plate 15 cooperate to form two air inlets, creating upper and lower air inlet ducts. A dustproof plate 24 is connected to the first arc-shaped plate 22 and the second arc-shaped plate 23 at the air inlets by screws. The dustproof plate 24 is a louvered guide plate, and the blades of the dustproof plate 24 are inclined downwards towards the side away from the cover plate 15 at an angle between 30° and 45°.

[0049] Reference Figure 4 , Figure 5 , Figure 6An air outlet is provided at the curved section of the second arc-shaped plate 23 near the fixed plate 12, and the axis of the air outlet is on the same plane as the axis of the second arc-shaped plate 23. The end of the air guide plate 18 away from the cover plate 15 is fixedly connected to the inner wall of the second arc-shaped plate 23 at the air outlet, and the air guide plate 18 and the inner wall of the second arc-shaped plate 23 transition smoothly. This allows the first arc-shaped plate 22, the second arc-shaped plate 23, and the two air guide plates 18 to cooperate to form a Y-shaped air duct. At the same time, the inner walls of the upper and lower air inlets and the air intake ducts are coated with a lubricating layer, and the upper air inlet and the lower air inlet and the air intake duct cooperate to form a streamlined air duct, thereby reducing the friction between the airflow and the first arc-shaped plate 22, the second arc-shaped plate 23, and the two air guide plates 18. When the cooling fan 14 is working, the airflow flows in from the two air inlets, and the airflow on both sides converges in the air intake duct, which can increase the airflow velocity when entering the air intake duct. In addition, when it rains outside and rainwater accidentally flows into the air duct, it can flow out from the bottom air inlet.

[0050] The implementation principle of this application embodiment is as follows: When the ambient temperature of the JP cabinet is below 40℃, the nickel-titanium shape memory alloy sheet in the adjustment groove 19 of the air guide plate 18 remains flat, and the width of the air inlet duct is normal. After being filtered by the louvered dustproof plate 24 of the waterproof component, the external airflow enters the "Y"-shaped air duct composed of the first arc plate 22, the second arc plate 23, and the air guide plate 18 through the air inlet. After the airflow converges and accelerates in the air inlet duct, it flows through the cooling fan 14. The rotation of the cooling fan 14 creates a negative pressure in the air inlet duct, which discharges the hot air between the outer cabinet 1 and the inner cabinet 2 through the spiral exhaust hole 11 of the exhaust pipe 10, thus achieving basic heat dissipation.

[0051] When the ambient temperature rises to 40-60℃, the nickel-titanium alloy sheet deforms and bends due to heat, causing the bimetallic strips 20 on the two air guide plates 18 to move closer together, reducing the width of the air intake duct by 30%-50%. According to the principles of fluid mechanics, the reduction in the cross-sectional area of ​​the air duct increases the airflow velocity by 50%-70%, and the high-speed airflow impacts the blades of the cooling fan 14, passively increasing the fan speed by 15%-25%.

[0052] Simultaneously, the high-speed airflow can increase the wind pressure on the pressure sensor 21 on the arc-shaped surface of the bimetallic strip 20. The pressure sensor 21 transmits the signal to the controller of the cooling fan 14, actively increasing the fan power, forming a dual-stage heat dissipation enhancement mechanism of "passive acceleration and active speed adjustment". The accelerated airflow enhances the convective heat transfer on the surface of the inner cabinet 2, and together with the negative pressure effect generated by the spiral holes of the exhaust pipe 10, the air exchange efficiency between the outer cabinet 1 and the inner cabinet 2 is further improved.

[0053] In addition, rainwater is guided outwards by the louvered dustproof plate 2430°-45° inclined blades, preventing it from entering the air duct. Furthermore, the gap structure of the first and second arc-shaped plates 23 blocks vertical liquid penetration. At the same time, the dustproof sleeve 9 inside the conduit 8 is tightly fitted to the wires, preventing dust from entering along the pipeline.

[0054] The cooling fan 14 is mounted on the "U"-shaped fixing plate 12 via the anti-vibration rubber pad 13, which can effectively reduce the vibration generated when the cooling fan 14 is running. In addition, the inner cabinet 2 is placed on the rubber hollow mounting bracket 3 to block the transmission of external mechanical vibration to electrical components.

[0055] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adaptive heat dissipation type JP cabinet, comprising an outer cabinet (1), an inner cabinet (2), and a cabinet door (5), characterized in that: A fan bracket is detachably connected to the surface of the outer cabinet (1), and a heat dissipation fan (14) is arranged inside the fan bracket; the fan bracket comprises two "C"-shaped fixing plates (12); A waterproof component is detachably connected to the surface of the outer cabinet (1), and a wind guiding component is connected to one side of the waterproof component close to the fan bracket, and the interior of the waterproof component is communicated with that of the wind guiding component; The wind guiding component comprises a cover plate (15), the cover plate (15) covers the fan bracket, two wind guiding plates (18) are connected to one side of the cover plate (15), and the cover plate (15) is connected to the waterproof component through an arc-shaped plate; the cross section of the cover plate (15) is in the shape of a "C", and the long plate of the cover plate (15) and the surfaces of the two fixing plates (12) far away from the outer cabinet (1) cooperate to form two air inlets; Bimetallic sheets (20) are arranged on the opposite sides of the two wind guiding plates (18), and the two bimetallic sheets (20) are close to each other after deformation; A pressure sensor (21) is arranged on the surface of the bimetallic sheet (20), and the pressure sensor (21) is connected to the heat dissipation fan (14); The waterproof component comprises two side plates (17) detachably connected to the cover plate (15), a first arc-shaped plate (22) and a second arc-shaped plate (23) are arranged between the two side plates (17), the second arc-shaped plate (23) covers the first arc-shaped plate (22), a gap is arranged between the first arc-shaped plate (22) and the second arc-shaped plate (23), and two air inlets are formed in cooperation on the side far away from the fan bracket. A dust-proof plate (24) is arranged at the air inlets of the first arc-shaped plate (22) and the second arc-shaped plate (23); An air outlet is formed at the arc-shaped bending part of the second arc-shaped plate (23), the second arc-shaped plate (23) is connected to the wind guiding plate (18) at the air outlet, both sides of the wind guiding plate (18) are connected to the corresponding side plates (17), and the two wind guiding plates (18) and the side plates (17) cooperate to form an air inlet duct; The wind guiding plate (18) is arc-shaped, and the arc-shaped convex surfaces of the two wind guiding plates (18) are close to each other. An adjustment groove (19) is formed in the arc-shaped surface of the wind guiding plate (18), the bimetallic sheet (20) is installed in the adjustment groove (19), the inner wall of the adjustment groove (19) close to the waterproof component is connected to one end of the bimetallic sheet (2)0, and the pressure sensor (21) is arranged on the arc-shaped surface of the bimetallic sheet (20) close to the cover plate (15); When the external temperature rises, the bimetallic sheet (20) is deformed and bent, and the two bimetallic sheets (20) are close to each other, reducing the width of the air inlet duct, so that the flow rate of the air flow entering the air inlet from the outside increases, and at the same time, the wind pressure received by the pressure sensor (21) increases and triggers the synchronous increase of the rotation speed of the heat dissipation fan (14).

2. The adaptive heat dissipation type JP cabinet according to claim 1, characterized in that: The bimetallic sheet (20) is a nickel-titanium shape memory alloy sheet with a deformation temperature of 40-60 °C.

3. The adaptive heat dissipation type JP cabinet according to claim 1, characterized in that... The fixing plate (12) is connected to a vibration damping rubber pad (13), and the cooling fan (14) is mounted on the rubber pad (13).

4. The adaptive heat dissipation type JP cabinet according to claim 1, characterized in that: The outer cabinet (1) is provided with a mounting frame (3) that is hollowed out, and the mounting frame (3) is provided with a mounting groove (4), and the inner cabinet (2) is placed in the mounting groove (4); A sealing ring (7) is connected to the cabinet door (5). The sealing ring (7) matches the size of the inner cabinet (2). When the cabinet door (5) is closed, the sealing ring (7) extends into the inner cabinet (2) and abuts against the inner wall of the inner cabinet (2).

5. The adaptive heat dissipation type JP cabinet according to claim 1, characterized in that: The inner cabinet (2) is provided with a conduit (8), which passes through the inner cabinet (2) and the outer cabinet (1). A dust cover (9) is provided inside the conduit (8), and external wires pass through the dust cover (9) and extend into the inner cabinet (2). The conduit (8) is covered with an exhaust pipe (10), which is embedded in the outer cabinet (1). The exhaust pipe (10) has several exhaust holes (11).

6. The adaptive heat dissipation type JP cabinet according to claim 1, characterized in that: The dustproof plate (24) is a louvered baffle plate with its blades tilted downwards at 30°-45° and pointing outwards from the waterproof component.

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