A multi-module cooling power distribution cabinet

Abstract

The present invention is used in the technical field of power distribution cabinets, and specifically discloses a power distribution cabinet with multi-module cooling, including a cabinet, wherein the inner wall of the cabinet is symmetrically provided with mounting tracks, and a mounting plate is fixedly installed on the mounting track surface of the cabinet, and the mounting plate is spaced a certain distance from the inner wall of the cabinet, and a passive heat dissipation structure is provided inside the cabinet, and the passive heat dissipation structure is provided with a fan and an air duct formed by an air outlet inside the cabinet to perform natural wind heat dissipation on the cabinet. In the power distribution cabinet with multi-module cooling, a fan is provided on the bottom surface of the cabinet, and an air outlet is provided above the side surface of the cabinet. Since the density of hot air is less than that of cold air, the hot air in the cabinet rises and is discharged from the upper air outlet, and the cold air enters from the fan inlet at the lower end, forming an air flow passage, and performing natural ventilation and heat dissipation on the cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a multi-module cooling power distribution cabinet. Background Art

[0002] A distribution cabinet is a device used to distribute, control and protect electrical energy. It is usually used in industrial, commercial or residential buildings. It includes main circuit breakers, contactors, relays and other components to ensure the safe and reliable operation of the power system. The distribution cabinet is the final equipment of the distribution system. They distribute the electrical energy of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load. The electronic components inside the distribution cabinet will generate a lot of heat when working. In order to ensure the normal operation of the distribution cabinet, the distribution cabinet needs to dissipate heat.

[0003] Ordinary distribution cabinets only dissipate heat by opening heat dissipation windows, which has poor heat dissipation effect and can easily cause the temperature inside the cabinet to be too high, affecting the safe operation of electronic components and even causing unexpected risks. Alternatively, exhaust fans are used to directly dissipate heat inside the cabinet, which has poor heat dissipation efficiency and cannot effectively achieve energy saving and cooling. In addition, the cooling structures in the distribution cabinet are mostly fixed in position, so there may be problems of local cooling during the cooling process of the cooling structure inside the distribution cabinet. Summary of the invention

[0004] The object of the present invention is to provide a multi-module cooling power distribution cabinet to solve the problem raised in the above background technology that the current cooling structure of the power distribution cabinet is not sufficient to fully dissipate the heat inside the cabinet.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-module cooling power distribution cabinet, comprising a cabinet, the inner wall of the cabinet is symmetrically provided with mounting rails, a mounting plate is fixedly installed on the mounting rail surface of the cabinet, the mounting plate is spaced a certain distance from the inner wall of the cabinet, a passive heat dissipation structure is arranged inside the cabinet, the passive heat dissipation structure is provided with a fan and an air duct formed by an air outlet inside the cabinet to perform natural wind heat dissipation on the cabinet, the passive heat dissipation structure comprises a base, the base is fixedly arranged on the lower surface of the cabinet, and the bottom The seat is a hollow rectangular plate structure, and the side surface of the base is hollowed out, the side surface of the cabinet is penetrated with an air outlet, and the air outlet is symmetrically arranged on the surface of the cabinet, the surface of the air outlet is provided with a square grille, and a baffle is provided on one side of the air outlet, the cross-section of the baffle is trapezoidal, and one side surface and the bottom surface of the baffle are open, the open side of the baffle is fixedly connected to the outer surface of the cabinet, the lower surface of the cabinet is penetrated with a fan, and two fans are symmetrically arranged, and the air inlet end of the fan penetrates the surface of the base and is arranged downward;

[0006] Preferably, an air guide structure is provided above the fan, and the air guide structure is provided with an air guide plate to guide the air entering the cabinet, thereby increasing the heat dissipation efficiency of the mounting plate.

[0007] By adopting the above technical solution and utilizing the air guide structure, the heat dissipation efficiency of the mounting plate can be increased.

[0008] Preferably, the air guide structure includes an air guide plate, which is an arc-shaped plate structure. The arc-shaped air guide plate is installed downward, and multiple groups of air guide plates are equidistant and parallel. The air guide plate is connected to the inner wall of the cabinet through a support rod, and a hollow is provided between the air guide plate and the cabinet. The gap formed between the upper and lower air guide plates is aligned with the mounting plate.

[0009] By adopting the above technical solution and utilizing a plurality of wind guide plates arranged in parallel, the heat dissipation efficiency of the mounting plate can be increased.

[0010] Preferably, an active heat dissipation structure is arranged inside the cabinet, and the active heat dissipation structure is provided with electric contact No. 1 and electric contact No. 1 2 to automatically start the fan when the temperature rises, thereby realizing active ventilation and heat dissipation inside the cabinet.

[0011] By adopting the above technical solution and utilizing the active heat dissipation structure, the fan can be automatically started to actively dissipate heat at high temperatures.

[0012] Preferably, the active heat dissipation structure includes a connecting plate 1, which is slidably connected to the bottom surface of the cabinet, a connecting plate 2 is provided on one side of the connecting plate 1, and the connecting plate 2 is slidably connected to the bottom surface of the cabinet, the connecting plate 1 is made of magnetic material, a magnet is fixedly connected to one side of the connecting plate 2 and adsorbed to the connecting plate 1, a connecting spring is provided on the other side of the connecting plate 2, and the other end of the connecting spring is fixedly mounted on the inner wall of the cabinet, the elastic force of the connecting spring is less than the adsorption force of the magnet on the surface of the connecting plate 2, the connecting plate 1, the connecting plate 2 and the connecting spring are symmetrically arranged in two groups, a memory spring is connected between the two connecting plates 1, and the memory spring is made of nickel-titanium memory alloy material.

[0013] By adopting the above technical solution, the high-temperature deformation of the memory spring is utilized to drive the motor to be connected to the power supply, thereby realizing automatic starting of the motor.

[0014] Preferably, an electric contact No. 1 is fixedly mounted on one side surface of the connecting plate No. 1, an electric contact No. 1 is arranged on one side of the electric contact No. 1, the electric contact No. 1 is fixedly mounted on the bottom surface of the cabinet, the electric contact No. 1 is connected to the fan drive motor through a wire, the electric contact No. 1 is connected to an indicator light through a wire, the indicator light is embedded in the side surface of the cabinet, the other end of the wire at the indicator light is connected to a power supply, and the structures of the two connecting plates are exactly the same.

[0015] By adopting the above technical solution, the connection between the fan and the power supply can be achieved by utilizing the contact between the No. 1 electrical contact 1 and the No. 1 electrical contact 2.

[0016] Preferably, an alarm structure is provided on the surface of the cabinet, and an alarm is provided on the alarm structure. The alarm is automatically started by utilizing the movement of the connecting plate 1 and the connecting plate 2 at high temperature.

[0017] By adopting the above technical solution and utilizing the alarm structure, automatic high temperature alarm can be realized.

[0018] Preferably, the alarm structure includes an alarm, which is fixedly mounted on the front surface of a cabinet, a protective resistor is provided on one side of the alarm, the protective resistor is fixedly connected to the front surface of the cabinet, the alarm and the protective resistor are connected in series with the same power supply, a No. 2 electric contact 1 is fixedly connected to the other side surface of the connecting plate 1, a No. 2 electric contact 2 is fixedly connected to the side surface of the connecting plate 2, the No. 2 electric contact 1 is in contact with the No. 2 electric contact 2, the No. 2 electric contact 1 is connected to the alarm via a wire, the No. 2 electric contact 2 is connected to the alarm via a wire, and the alarm, No. 2 electric contact 1, No. 2 electric contact 2 and the wire constitute a current loop.

[0019] By adopting the above technical solution, the alarm can be automatically started by demagnetizing the high-temperature magnet.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the multi-module cooling power distribution cabinet:

[0021] 1. In the present invention, a fan is arranged on the bottom surface of the cabinet, and an air outlet is arranged above the side surface of the cabinet. Since the density of hot air is less than that of cold air, the hot air in the cabinet rises and is discharged from the upper air outlet, and the cold air enters from the fan inlet at the lower end, forming an air flow passage, and the cabinet is naturally ventilated and dissipated;

[0022] 2. The cabinet of the present invention is installed by using a base, the fan inlet is set downward, and a trapezoidal baffle is set outside the air outlet on the surface of the cabinet, the trapezoidal baffle blocks the outlet air, and the fan inlet set downward and the baffle outside the air outlet can prevent the entry of debris during the air flow to the greatest extent;

[0023] 3. In the present invention, the mounting plate of the electrical components in the cabinet is spaced apart from the inner wall of the cabinet, and an arc-shaped air guide plate is arranged on the inner wall of the cabinet, and the air guide plate is connected to the inner wall of the cabinet. The air entering from the fan moves upward in the gap between the air guide plate and the inner wall of the cabinet, and flows to the surface of the mounting plate under the guidance of the arc-shaped air guide plate, thereby increasing the heat dissipation effect of the mounting plate;

[0024] 4. The present invention provides a sliding connection plate 1 and a connection plate 2. A magnet is provided on the surface of the connection plate 2 to be adsorbed and connected to the magnetic connection plate 1. A No. 1 electric contact 1 is provided on the surface of the connection plate 1 to form an active circuit contact with the No. 1 electric contact 2 in the cabinet. When the temperature in the cabinet rises, the memory spring on the surface of the connection plate 1 deforms under high temperature, driving the connection plate 1 to slide and realize the connection between the No. 1 electric contact 1 and the No. 1 electric contact 2, thereby realizing the automatic start-up of the fan to automatically dissipate heat from the cabinet.

[0025] 5. In the present invention, No. 2 electric contact 1 and No. 2 electric contact 2 are respectively arranged on the surfaces of connecting plate 1 and connecting plate 2 for connection, and No. 2 electric contact 1 and No. 2 electric contact 2 are connected in parallel with the alarm and then connected in series with the protective resistor in the power supply circuit. When the temperature inside the cabinet is too high, the magnet on the surface of connecting plate 2 is demagnetized under the action of high temperature, so that No. 2 electric contact 1 and No. 2 electric contact 2 are separated, and the short-circuit circuit at the alarm is disconnected, so that the alarm is connected to the power supply, and the alarm is automatically started to remind the operation and maintenance personnel to perform maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front view structural diagram of the cabinet of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the cabinet of the present invention;

[0028] Figure 3 This is a schematic diagram of the front cross-section structure of the cabinet of the present invention;

[0029] Figure 4 It is a schematic diagram of the side section structure of the cabinet of the present invention;

[0030] Figure 5 It is a schematic diagram of the top-section structure of the cabinet of the present invention;

[0031] Figure 6 It is a schematic diagram of the top view of the connecting plate 1 and the connecting plate 2 of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the No. 2 electrical contact 1 and the No. 2 electrical contact 2 of the present invention;

[0033] Figure 8 This is a schematic diagram of the circuit structure of the alarm device of the present invention;

[0034] Fig. 9 This is a schematic diagram of the fan circuit structure of the present invention.

[0035] In the figure: 1. cabinet; 2. mounting plate; 3. base; 4. air outlet; 5. baffle; 6. air guide plate; 7. fan; 8. connecting plate 1; 9. connecting plate 2; 10. connecting spring; 11. memory spring; 12. electrical contact No. 1; 13. electrical contact No. 1; 14. indicator light; 15. alarm; 16. protective resistor; 17. electrical contact No. 2; 18. electrical contact No. 2. 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] See also Figure 1-9 The present invention provides a technical solution: a multi-module cooling power distribution cabinet, including a cabinet body 1, a mounting plate 2, a base 3, an air outlet 4, a baffle 5, an air guide plate 6, a fan 7, a connecting plate 1 8, a connecting plate 2 9, a connecting spring 10, a memory spring 11, a No. 1 electric contact 1 12, a No. 1 electric contact 2 13, an indicator light 14, an alarm 15, a protective resistor 16, a No. 2 electric contact 1 17, and a No. 2 electric contact 2 18.

[0038] The inner wall of the cabinet 1 is symmetrically provided with mounting tracks, and a mounting plate 2 is fixedly installed on the surface of the mounting track of the cabinet 1, and a certain distance is separated between the mounting plate 2 and the inner wall of the cabinet 1. A passive heat dissipation structure is provided inside the cabinet 1, and the passive heat dissipation structure arranges a fan 7 and an air duct formed by an air outlet 4 inside the cabinet 1 to dissipate natural wind heat for the cabinet 1. The passive heat dissipation structure includes a base 3, which is fixedly arranged on the lower surface of the cabinet 1, and the base 3 is a hollow rectangular plate structure, and the side surface of the base 3 is hollowed out, and the side surface of the cabinet 1 is penetrated by the air outlet 4, and the air outlet 4 is symmetrically arranged on the surface of the cabinet 1, and the surface of the air outlet 4 is provided with a square grille, and a baffle 5 is provided on one side of the air outlet 4, the cross-section of the baffle 5 is trapezoidal, and one side surface and the bottom surface of the baffle 5 are open, and the open side of the baffle 5 is fixedly connected to the outer surface of the cabinet 1, and the lower surface of the cabinet 1 is penetrated by a fan 7, and two fans 7 are symmetrically arranged, and the air inlet end of the fan 7 penetrates the surface of the base 3 and is arranged downward;

[0039] like Figure 1 , Figure 2 and Figure 3As shown, in the present invention, the cabinet 1 is installed on the ground using the base 3. In the installed device, the air inlet end of the fan 7 penetrates the surface of the base 3, and the air enters from the hollow base 3 and enters the air inlet end of the fan 7. Since the density of hot air is less than that of cold air, the hot air in the cabinet 1 rises, and the cold air entering from the fan 7 pushes the hot air to be discharged from the air outlet 4 on the side surface of the cabinet 1, so that the cabinet 1 is naturally ventilated and heat-dissipated. Since the air inlet end of the fan 7 is arranged downward, a baffle 5 is arranged on one side of the air outlet 4, which can prevent debris from entering the interior of the cabinet 1 to the greatest extent.

[0040] An air guide structure is provided above the fan 7, and an air guide plate 6 is provided on the air guide structure to guide the air entering the cabinet 1, thereby increasing the heat dissipation efficiency of the mounting plate 2. The air guide structure includes an air guide plate 6, and the air guide plate 6 is an arc-shaped plate structure. The arc-shaped air guide plate 6 is installed downward, and multiple groups of air guide plates 6 are arranged in parallel at equal distances. The air guide plate 6 is connected to the inner wall of the cabinet 1 through a support rod, and a hollow is provided between the air guide plate 6 and the cabinet 1, and the gap formed between the upper and lower air guide plates 6 is aligned with the mounting plate 2;

[0041] like Figure 3 and Figure 4 As shown, after the airflow enters from the gap of the fan 7, it moves upward along the gap between the air guide plate 6 and the cabinet 1. During the movement of the airflow, it flows along the arc-shaped air guide plate 6 toward the side of the mounting plate 2, thereby increasing the heat dissipation effect of the mounting plate 2.

[0042] An active heat dissipation structure is arranged inside the cabinet 1. The active heat dissipation structure is provided with an electric contact No. 1 12 and an electric contact No. 2 13 to realize automatic start of the fan 7 when the temperature rises, thereby realizing active ventilation and heat dissipation inside the cabinet 1. The active heat dissipation structure includes a connecting plate 1 8, which is slidably connected to the bottom surface of the cabinet 1. A connecting plate 2 9 is arranged on one side of the connecting plate 1 8, and the connecting plate 2 9 is slidably connected to the bottom surface of the cabinet 1. The connecting plate 1 8 is made of magnetic material, and a magnet is fixedly connected to one side of the connecting plate 2 9 to be adsorbed by the connecting plate 1 8. A connecting spring 10 is arranged on the other side of the connecting plate 2 9, and the other end of the connecting spring 10 is fixedly mounted on the inner wall of the cabinet 1. The elastic force of the connecting spring 10 is less than the magnetic force on the surface of the connecting plate 2 9. The adsorption force of iron, the connecting plate 18, the connecting plate 29 and the connecting spring 10 are symmetrically arranged in two groups, a memory spring 11 is connected between the two connecting plates 8, the memory spring 11 is made of nickel-titanium memory alloy material, a No. 1 electric contact 12 is fixedly installed on one side surface of the connecting plate 8, a No. 1 electric contact 2 13 is arranged on one side of the No. 1 electric contact 12, the No. 1 electric contact 2 13 is fixedly installed on the bottom surface of the cabinet 1, the No. 1 electric contact 2 13 is connected to the fan 7 drive motor through a wire, the No. 1 electric contact 12 is connected to an indicator light 14 through a wire, the indicator light 14 is embedded on the side surface of the cabinet 1, the other end of the wire at the indicator light 14 is connected to the power supply, and the structures at the two connecting plates 8 are exactly the same;

[0043] like Figure 3 , Figure 5 , Figure 6 , Figure 7 and Fig. 9 As shown, when the components in the cabinet 1 are not started, the temperature of the cabinet 1 is low. At this time, the connecting plate 1 8 and the connecting plate 2 9 are in the initial state. At this time, the connecting plate 1 8 and the connecting plate 2 9 are connected by magnet adsorption. The connecting plate 2 9 is connected to the inner wall of the cabinet 1 through the connecting spring 10. The two connecting plates 1 8 are connected by the memory spring 11. At this time, the memory spring 11 is in an extended state under the pulling force of the connecting springs 10 on both sides. When the temperature in the cabinet 1 rises, the memory spring 11 is deformed in the high temperature environment, shrinks from the extended state and returns to its original state, driving the connecting plates 1 on both sides. 8 slides, the connecting plate 18 drives the surface electric contact 12 to slide, so that the electric contact 12 is in contact with the electric contact 2 13, so that the fan 7, the electric contact 1 13, the electric contact 1 13 and the indicator light 14 form a loop with the power supply, and the fan 7 is started to dissipate heat for the cabinet 1, while the indicator light 14 is used to display the start-up status of the fan 7. When the temperature in the cabinet 1 drops, the memory spring 11 re-extends under the pulling force of the connecting springs 10 on both sides, so that the electric contact 12 is separated from the electric contact 2 13, and the fan 7 stops working.

[0044] An alarm structure is arranged on the surface of the cabinet 1, and an alarm 15 is arranged on the alarm structure. The alarm 15 is automatically started by the movement of the connecting plate 1 8 and the connecting plate 2 9 at high temperature. The alarm structure includes the alarm 15, and the alarm 15 is fixedly mounted on the front surface of the cabinet 1. A protective resistor 16 is arranged on one side of the alarm 15, and the protective resistor 16 is fixedly connected to the front surface of the cabinet 1. The alarm 15 and the protective resistor 16 are connected in series with the same power supply. A No. 2 electric contact 17 is fixedly connected to the other side surface of the connecting plate 1 8, and a No. 2 electric contact 2 18 is fixedly connected to the side surface of the connecting plate 2 9. The No. 2 electric contact 1 17 is in contact with the No. 2 electric contact 2 18, and the No. 2 electric contact 1 17 is connected to the alarm 15 through a wire, and the No. 2 electric contact 2 18 is connected to the alarm 15 through a wire, and the alarm 15, the No. 2 electric contact 1 17, the No. 2 electric contact 2 18 and the wire constitute a current loop;

[0045] like Figure 6 , Figure 7 and Figure 8As shown, under the action of the magnet on the surface of connecting plate 29, connecting plate 29 and connecting plate 18 always move synchronously, so that the No. 2 electrical contact 17 on the surface of connecting plate 18 and the No. 2 electrical contact 18 on the surface of connecting plate 29 always keep in contact, and the wires on the surfaces of No. 2 electrical contact 17 and No. 2 electrical contact 18 form a short circuit at both ends of the alarm 15, so that the power supply current flows entirely from the protection resistor 16, and no current flows through the alarm 15. When the temperature in the cabinet 1 is too high, the magnet on the surface of connecting plate 29 demagnetizes under the action of high temperature, so that connecting plate 29 and connecting plate 18 separate and lose adsorption force. Connecting plate 29 slides to one side under the traction of connecting spring 10, driving No. 2 electrical contact 18 to separate from No. 2 electrical contact 17, so that the circuit at both ends of the alarm 15 is disconnected. At this time, the alarm 15 and the protection resistor 16 are connected in series in the power supply circuit, so that the alarm 15 is activated to remind the operation and maintenance personnel.

[0046] Working principle: The bottom surface of the cabinet 1 is provided with a fan 7, and the side surface of the cabinet 1 is provided with an air outlet 4. Cold air enters from the inlet of the fan 7 at the lower end, and pushes the hot air out of the cabinet 1 from the upper air outlet 4, forming an air flow path to dissipate heat for the cabinet 1. The inlet of the fan 7 faces downward, and a baffle 5 is provided on the outside of the air outlet 4 to prevent debris from entering during the air flow process to the greatest extent. After the air flow enters from the fan 7, it flows to the surface of the mounting plate 2 under the guidance of the air guide plate 6, thereby increasing the heat dissipation effect of the mounting plate 2. When the temperature inside the cabinet 1 When it rises, the memory spring 11 on the surface of the connecting plate 1 8 is deformed under high temperature, driving the connecting plate 1 8 to move. The connecting plate 1 8 slides and drives the No. 1 electric contact 1 12 and the No. 1 electric contact 2 13 to connect and contact, so that the fan 7 is connected to the power supply, and the fan 7 is automatically started to dissipate the heat of the cabinet 1. When the temperature inside the cabinet 1 is too high, the magnet on the surface of the connecting plate 2 9 is demagnetized under the action of high temperature, so that the No. 2 electric contact 1 17 and the No. 2 electric contact 2 18 are separated, thereby activating the alarm 15 to remind the operation and maintenance personnel to perform maintenance.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-module cooling power distribution cabinet, comprising a cabinet (1), the inner wall of the cabinet (1) being symmetrically provided with mounting rails, a mounting plate (2) being fixedly mounted on the surface of the mounting rail of the cabinet (1), the mounting plate (2) being spaced a certain distance from the inner wall of the cabinet (1), characterized in that: A passive heat dissipation structure is arranged inside the cabinet (1). The passive heat dissipation structure is provided with a fan (7) and an air outlet (4) inside the cabinet (1) to form an air duct to dissipate natural wind heat from the cabinet (1). The passive heat dissipation structure comprises a base (3). The base (3) is fixedly arranged on the lower surface of the cabinet (1). The base (3) is a hollow rectangular plate structure. The side surface of the base (3) is hollowed out. The side surface of the cabinet (1) is provided with an air outlet (4) penetrating therethrough. The air outlet (4) is symmetrically arranged on the surface of the cabinet (1). The surface of the air outlet (4) is provided with a square grille, a baffle (5) is provided on one side of the air outlet (4), the cross section of the baffle (5) is trapezoidal, and one side surface and the bottom surface of the baffle (5) are open, the open side of the baffle (5) is fixedly connected to the outer surface of the cabinet (1), a fan (7) is provided through the lower surface of the cabinet (1), and two fans (7) are symmetrically provided, the air inlet end of the fan (7) is provided through the surface of the base (3) and is downwardly arranged, and an active heat dissipation structure is provided inside the cabinet (1). The active heat dissipation structure is provided with a first electrical contact (12) and a second electrical contact (13) to automatically start a fan (7) when the temperature rises, thereby realizing active ventilation and heat dissipation inside the cabinet (1). The active heat dissipation structure comprises a first connecting plate (8), the first connecting plate (8) is slidably connected to the bottom surface of the cabinet (1), a second connecting plate (9) is provided on one side of the first connecting plate (8), the second connecting plate (9) is slidably connected to the bottom surface of the cabinet (1), the first connecting plate (8) is made of magnetic material, and one side of the second connecting plate (9) is fixed A magnet is connected to the connecting plate 1 (8) for adsorption, a connecting spring (10) is arranged on the other side of the connecting plate 2 (9), the other end of the connecting spring (10) is fixedly mounted on the inner wall of the cabinet (1), the elastic force of the connecting spring (10) is smaller than the adsorption force of the magnet on the surface of the connecting plate 2 (9), the connecting plate 1 (8), the connecting plate 2 (9) and the connecting spring (10) are symmetrically arranged in two groups, a memory spring (11) is connected between the two connecting plates 1 (8), and the memory spring (11) is made of a nickel-titanium memory alloy material.

2. A multi-module cooling power distribution cabinet according to claim 1, characterized in that: An air guide structure is provided above the fan (7), and the air guide structure is provided with an air guide plate (6) to guide the air entering the cabinet (1), thereby increasing the heat dissipation efficiency of the mounting plate (2).

3. A multi-module cooling power distribution cabinet according to claim 2, characterized in that: The wind guide structure comprises a wind guide plate (6), the wind guide plate (6) being an arc-shaped plate structure, the arc-shaped wind guide plate (6) being installed downward, and a plurality of groups of wind guide plates (6) being arranged in parallel and equidistantly, the wind guide plate (6) being connected to the inner wall of the cabinet (1) via a support rod, and a hollow space being arranged between the wind guide plate (6) and the cabinet (1), and a gap formed between the upper and lower wind guide plates (6) being aligned with the mounting plate (2).

4. A multi-module cooling power distribution cabinet according to claim 1, characterized in that: A first electric contact (12) is fixedly mounted on one side surface of the connecting plate (8), a first electric contact (13) is arranged on one side of the first electric contact (12), the first electric contact (13) is fixedly mounted on the bottom surface of the cabinet (1), the first electric contact (13) is connected to the fan (7) drive motor via a wire, the first electric contact (12) is connected to an indicator light (14) via a wire, the indicator light (14) is embedded in the side surface of the cabinet (1), the other end of the wire at the indicator light (14) is connected to a power source, and the structures of the two connecting plates (8) are completely the same.

5. A multi-module cooling power distribution cabinet according to claim 1, characterized in that: An alarm structure is arranged on the surface of the cabinet (1), and an alarm (15) is arranged on the alarm structure. The alarm (15) is automatically activated by utilizing the movement of the first connecting plate (8) and the second connecting plate (9) at high temperature.

6. A multi-module cooling power distribution cabinet according to claim 5, characterized in that: The alarm structure comprises an alarm (15), the alarm (15) being fixedly mounted on the front surface of the cabinet (1), a protective resistor (16) being arranged on one side of the alarm (15), the protective resistor (16) being fixedly connected to the front surface of the cabinet (1), the alarm (15) and the protective resistor (16) being connected in series with the same power supply, a No. 2 electric contact (17) being fixedly connected to the other side surface of the connecting plate (8), a No. 2 electric contact (18) being fixedly connected to the side surface of the connecting plate (9), the No. 2 electric contact (17) and the No. 2 electric contact (18) being in contact, the No. 2 electric contact (17) being connected to the alarm (15) via a wire, the No. 2 electric contact (18) being connected to the alarm (15) via a wire, the alarm (15), the No. 2 electric contact (17), the No. 2 electric contact (18) and the wire forming a current loop.

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