Lightweight impact-resistant electrical distribution box

Abstract

The application relates to a light impact-resistant power distribution box, and relates to the technical field of power distribution boxes, which comprises a box body, the box body comprises an inner layer, a buffer layer and an outer layer arranged from inside to outside, and the inner layer is an aramid fiber reinforced composite material plate. The aramid fiber reinforced composite material plate is arranged as the inner layer of the box body, the high-strength and light-weight characteristics of aramid fiber are utilized, the weight of the inner layer is reduced, internal stress is effectively dispersed, reliable protection is provided for internal equipment of the box body, the hexagonal honeycomb buffer hole structure and the polypropylene foam plastic filled with aerogel particles are arranged as the middle layer of the box body, the honeycomb structure and the aerogel energy absorption and buffering can be utilized, the middle layer is light in weight, the overall impact resistance of the box body is improved, the aluminized magnesium alloy plate is arranged as the outer layer of the box body, the high-strength, corrosion-resistant and light-weight advantages can be utilized to provide protection for the box body, the weight of the outer layer is reduced, and the impact resistance is enhanced.

Description

Technical Field

[0001] This application relates to the field of distribution box technology, and in particular to lightweight impact-resistant distribution boxes. Background Technology

[0002] A power distribution cabinet is a power distribution device that assembles switching equipment, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. It plays a key role in power systems, such as distributing electrical energy, controlling the on / off state of circuits, and protecting the safe operation of equipment. It is widely used in various fields.

[0003] Traditional distribution boxes are mostly made of steel plates or ordinary aluminum alloys. By increasing the wall thickness or adding dense reinforcing ribs to improve impact resistance, the weight is significantly increased, resulting in high transportation and installation costs. Utility Model Content

[0004] The purpose of this application is to provide a lightweight, shock-resistant distribution box that has the advantages of being lightweight and having excellent impact resistance, thus solving the problems mentioned in the background art.

[0005] The lightweight impact-resistant distribution box provided in this application adopts the following technical solution: The lightweight impact-resistant distribution box includes a box body, which includes an inner layer, a buffer layer and an outer layer arranged from the inside to the outside; The inner layer is an aramid fiber reinforced composite material sheet; The buffer layer is made of polypropylene foam, and the interior of the buffer layer has hexagonal honeycomb buffer holes arranged at equal intervals, and each hexagonal honeycomb buffer hole is filled with aerogel particles. The outer layer is an aluminum-magnesium alloy plate. The inner wall of the box is fixedly connected to a reinforcing frame, which includes multiple longitudinal reinforcing plates and one transverse reinforcing plate. The transverse reinforcing plate is fixedly connected to the middle position of the three longitudinal reinforcing plates, and reinforcing short plates are fixedly connected to the top and bottom of adjacent longitudinal reinforcing plates. The reinforcing frame is made of carbon fiber composite material. Triangular reinforcing plates are fixedly connected to the inner sides of the four corners of both the longitudinal and transverse reinforcing plates.

[0006] By adopting the above technical solution, the inner layer uses aramid fiber reinforced composite material board, which has both high strength and light weight. The buffer layer uses polypropylene foam plastic with hexagonal honeycomb buffer hole structure, and aerogel particles are filled in the buffer holes to form an efficient buffer energy absorption structure. The outer layer uses aluminum-magnesium alloy plate for enhanced protection, and the structure is further strengthened by the reinforcing frame of carbon fiber composite material profile. This makes the distribution box lighter while improving its impact resistance, effectively reducing transportation and installation costs.

[0007] Preferably, the front of the box is hinged with a door, and the door is made of aluminum-magnesium alloy plate.

[0008] By adopting the above technical solution, the aluminum-magnesium alloy sheet has the characteristics of high strength and corrosion resistance. When used for the box door, on the one hand, the high strength can ensure that the box door is not easily deformed or damaged when subjected to external impact, effectively protecting the internal equipment of the box. On the other hand, the corrosion resistance allows the box door to maintain good service condition for a long time in various harsh environments, such as humid places and places with corrosive gases, thus extending the service life of the distribution box. Moreover, the aluminum-magnesium alloy sheet is lightweight and will not add too much burden to the overall weight of the box, which meets the design requirements of lightweight impact-resistant distribution boxes.

[0009] Preferably, the inside of the cabinet door is equipped with a lock for fixed connection with the cabinet body, and a handle is installed on the front of the cabinet door.

[0010] By adopting the above technical solutions, the locks enhance the security of the distribution box, effectively preventing unauthorized personnel from opening the door to operate or damage the internal equipment, ensuring the normal operation of the electrical equipment and data security inside the distribution box. The handle design makes it easier for staff to open and close the door, improving the convenience of operation.

[0011] Preferably, a sealing strip is fixedly connected to the back of the door via a groove, and the back of the sealing strip is in close contact with the front of the box body.

[0012] By adopting the above technical solution, the sealing strip can play a good sealing role. It can effectively prevent external dust, moisture, and humidity from entering the cabinet. Through the sealing of the sealing strip, a relatively dry and clean working environment is provided for the equipment inside the cabinet, which improves the reliability and stability of the equipment and extends the service life of the equipment.

[0013] Preferably, the interior of the cabinet door is provided with an observation window, which is made of polycarbonate sheet.

[0014] By adopting the above technical solution, the observation window is made of polycarbonate sheet. Polycarbonate has high transparency, high strength and good impact resistance. The high transparency allows the staff to clearly observe the operating status of the equipment inside the cabinet without opening the cabinet door, such as the display of indicator lights and whether there are any abnormalities in the appearance of the equipment. This makes it convenient to detect problems in time and deal with them. The high strength and impact resistance ensure that the observation window is not easily broken when it is hit by external force, ensuring the safety of the staff. At the same time, it also prevents external impurities from entering the cabinet due to damage to the observation window.

[0015] Preferably, the interior of the housing has equidistantly arranged heat dissipation holes, which are symmetrically arranged on both sides of the housing.

[0016] By adopting the above technical solution, the heat dissipation holes can meet the heat dissipation requirements of the distribution box and ensure the normal operation of electrical equipment.

[0017] Preferably, a base is fixedly connected to the bottom of the box, and an anti-slip pad is fixedly connected to the bottom surface of the base.

[0018] By adopting the above technical solution, the base can provide stable support for the box, allowing the distribution box to be placed firmly on the ground. The anti-slip pad further enhances the friction between the base and the ground, preventing the distribution box from sliding during use and improving the stability of the distribution box.

[0019] Preferably, the transverse reinforcing plate, the longitudinal reinforcing plate, and the reinforcing short plate are integrally formed.

[0020] By adopting the above technical solution, the one-piece molding design eliminates the connection gaps between the horizontal reinforcing plates, the vertical reinforcing plates, and the reinforcing short plates, resulting in a more compact and stable structure. When subjected to impact, the one-piece molding reinforcing frame will not fail due to loosening or breakage of the connection parts, further improving the impact resistance of the lightweight impact-resistant distribution box.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This lightweight, impact-resistant distribution box utilizes aramid fiber-reinforced composite material as its inner layer. The high strength and lightweight properties of aramid fibers effectively reduce the weight of the inner layer while dispersing internal stress, providing reliable protection for the equipment inside. The middle layer consists of polypropylene foam with a hexagonal honeycomb buffer structure filled with aerogel particles. This honeycomb structure and aerogel absorb energy and cushion the impact, while the foam itself is lightweight, further reducing the weight of the middle layer and improving the overall impact resistance of the box. The outer layer is made of aluminum-magnesium alloy sheet, which, with its high strength, corrosion resistance, and lightweight properties, provides excellent protection for the equipment inside. The body provides protection, reduces the weight of the outer layer, and enhances impact resistance. By setting a reinforcing frame of carbon fiber composite profiles on the inner wall of the box, the high specific strength and high specific modulus of carbon fiber composite material can enhance the overall rigidity of the box with a lightweight structure, effectively disperse impact force, prevent box deformation, and further improve impact resistance. By using longitudinal reinforcing plates, transverse reinforcing plates, and reinforcing short plates to form a reinforcing frame, and setting triangular reinforcing plates at the corners of the longitudinal and transverse reinforcing plates, a stable frame system can be constructed, and the structural strength at the corners of the box can be enhanced, effectively preventing local deformation or damage caused by stress concentration. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this application; Figure 2This is a schematic diagram of the box structure of this application; Figure 3 This is a schematic diagram of the reinforcing frame structure of this application; Figure 4 This is a partial cross-sectional structural diagram of the box body in this application; Figure 5 This is a schematic diagram of a partial vertical assembly structure of the box body in this application.

[0023] In the picture: 1. Box body; 101. Inner layer; 102. Buffer layer; 1021. Hexagonal honeycomb buffer holes; 103. Outer layer; 2. Reinforcing frame; 201. Longitudinal reinforcing plate; 202. Transverse reinforcing plate; 203. Reinforcing short plate; 3. Box door; 4. Lock; 5. Handle; 6. Sealing strip; 7. Observation window; 8. Heat dissipation hole; 9. Base. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: Lightweight and shock-resistant distribution box, refer to Figure 1 , Figure 4 and Figure 5 The container includes a housing 1, which comprises an inner layer 101, a buffer layer 102, and an outer layer 103 arranged from the inside out. The inner layer 101 is an aramid fiber reinforced composite material board, the buffer layer 102 is a polypropylene foam plastic, and the buffer layer 102 has hexagonal honeycomb buffer holes 1021 arranged at equal intervals inside. Each hexagonal honeycomb buffer hole 1021 is filled with aerogel particles. The outer layer 103 is an aluminum-magnesium alloy plate.

[0026] The front of the enclosure 1 is hinged with a door 3, which is made of aluminum-magnesium alloy sheet. Aluminum-magnesium alloy sheet has high strength and corrosion resistance. Using it for the door 3 has two advantages. First, the high strength ensures that the door 3 is not easily deformed or damaged when subjected to external impact, effectively protecting the internal equipment of the enclosure 1. Second, the corrosion resistance allows the door 3 to maintain good working condition for a long time in various harsh environments, such as humid or corrosive gas environments, thus extending the service life of the distribution box. Moreover, the aluminum-magnesium alloy sheet is lightweight and will not add too much burden to the overall weight of the enclosure 1, which meets the design requirements of a lightweight and impact-resistant distribution box.

[0027] The inside of the door 3 is equipped with a lock 4 for fixed connection with the box body 1. A handle 5 is installed on the front of the door 3. The lock 4 enhances the security of the distribution box and can effectively prevent unauthorized personnel from opening the door 3 at will to operate or damage the internal equipment, ensuring the normal operation of the electrical equipment and data security inside the distribution box. The handle 5 makes it convenient for staff to open and close the door 3, improving the ease of operation.

[0028] A sealing strip 6 is fixedly connected to the back of the door 3 via a groove. The back of the sealing strip 6 is in close contact with the front of the box 1. The sealing strip 6 can play a good sealing role, which can effectively prevent external dust, moisture, humidity and other substances from entering the inside of the box 1. Through the sealing of the sealing strip 6, a relatively dry and clean working environment is provided for the equipment inside the box 1, which improves the reliability and stability of the equipment and extends the service life of the equipment.

[0029] The interior of the door 3 is equipped with an observation window 7, which is made of polycarbonate sheet. Polycarbonate has high transparency, high strength and good impact resistance. The high transparency allows the staff to clearly observe the operating status of the equipment inside the cabinet 1 without opening the door 3, such as the display of indicator lights and whether there are any abnormalities in the appearance of the equipment. This makes it convenient to detect and deal with problems in a timely manner. The high strength and impact resistance ensure that the observation window 7 is not easily broken when subjected to external impact, ensuring the safety of the staff. It also prevents external impurities from entering the interior of the cabinet 1 due to damage to the observation window 7.

[0030] The interior of the enclosure 1 has equidistantly arranged heat dissipation holes 8, which are symmetrically arranged on both sides of the enclosure 1. The heat dissipation holes 8 can meet the heat dissipation requirements of the distribution box and ensure the normal operation of the electrical equipment.

[0031] A base 9 is fixedly connected to the bottom of the enclosure 1. An anti-slip pad is fixedly connected to the bottom surface of the base 9. The base 9 can provide stable support for the enclosure 1, so that the distribution box can be placed firmly on the ground. The anti-slip pad further enhances the friction between the base 9 and the ground, preventing the distribution box from sliding during use and improving the stability of the distribution box.

[0032] Example 2: Lightweight and shock-resistant distribution box, see reference. Figure 2 and Figure 3 The inner wall of the box 1 is fixedly connected with a reinforcing frame 2. The reinforcing frame 2 includes multiple longitudinal reinforcing plates 201 and a transverse reinforcing plate 202. The transverse reinforcing plate 202 is fixedly connected to the middle position of the three longitudinal reinforcing plates 201. The top and bottom of the adjacent longitudinal reinforcing plates 201 are fixedly connected with reinforcing short plates 203. The reinforcing frame 2 is a carbon fiber composite profile. The four corners of the longitudinal reinforcing plates 201 and the transverse reinforcing plates 202 are fixedly connected with triangular reinforcing plates.

[0033] The horizontal reinforcing plate 202, the vertical reinforcing plate 201, and the reinforcing short plate 203 are integrally formed. The integral forming design ensures that there are no connection gaps between the horizontal reinforcing plate 202, the vertical reinforcing plate 201, and the reinforcing short plate 203, making the structure more compact and stable. When subjected to impact, the integrally formed reinforcing frame 2 will not fail due to loosening or breakage of the connection parts, further improving the impact resistance of the lightweight impact-resistant distribution box.

[0034] The implementation principle of this application embodiment is as follows: The box 1 adopts a three-layer structure design from the inside out, namely an inner layer 101, a buffer layer 102, and an outer layer 103. The inner layer 101 is made of aramid fiber reinforced composite material. Aramid fiber has the characteristics of high strength, high modulus, and light weight. When subjected to internal stress or external impact, its high strength can withstand a certain force, preventing the inner layer 101 from breaking. At the same time, its light weight will not add too much weight to the overall box 1. The buffer layer 102 is made of polypropylene foam plastic, and hexagonal honeycomb buffer holes 1021 are opened inside it at equal intervals. Each hexagonal honeycomb buffer hole 1021 is filled with aerogel particles. The hexagonal honeycomb structure has high strength and stability. When subjected to impact, the honeycomb wall will undergo elastic deformation, absorbing and dispersing the impact energy. The aerogel particles have extremely low density and good energy absorption performance, which can further enhance the energy absorption and buffering of the buffer layer 102. For impact resistance, the outer layer 103 is made of aluminum-magnesium alloy sheet. Aluminum-magnesium alloy has the advantages of high strength, corrosion resistance and light weight. The high strength can provide a solid outer layer protection for the enclosure 1, resisting external impact and compression. The corrosion resistance can keep the enclosure 1 in good working condition for a long time in various harsh environments, extending the service life of the distribution box. The light weight will not add too much burden to the overall weight of the enclosure 1. Carbon fiber composite material has the characteristics of high specific strength and high specific modulus, which can achieve lightweight design while ensuring the strength of the reinforcing frame 2. When the distribution box is impacted, the longitudinal reinforcing plate 201, the transverse reinforcing plate 202 and the reinforcing short plate 203 can withstand and disperse the impact force, preventing the enclosure 1 from deforming. The triangular reinforcing plate can further enhance the structural strength at the corners of the reinforcing frame 2. The reinforcing frame 2 as a whole builds a stable support frame system inside the enclosure 1, improving the overall strength and stability of the distribution box.

[0035] 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. A lightweight, impact-resistant distribution box, comprising a box body (1), characterized in that: The box (1) includes an inner layer (101), a buffer layer (102) and an outer layer (103) arranged from the inside out; The inner layer (101) is an aramid fiber reinforced composite material sheet; The buffer layer (102) is made of polypropylene foam plastic, and the interior of the buffer layer (102) is provided with hexagonal honeycomb buffer holes (1021) arranged at equal intervals, and each hexagonal honeycomb buffer hole (1021) is filled with aerogel particles. The outer layer (103) is an aluminum-magnesium alloy plate; The inner wall of the box (1) is fixedly connected to a reinforcing frame (2). The reinforcing frame (2) includes multiple longitudinal reinforcing plates (201) and a transverse reinforcing plate (202). The transverse reinforcing plate (202) is fixedly connected to the middle position of the three longitudinal reinforcing plates (201). Reinforcing short plates (203) are fixedly connected to the top and bottom of the adjacent longitudinal reinforcing plates (201). The reinforcing frame (2) is a carbon fiber composite material profile; Triangular reinforcing plates are fixedly connected to the inner sides of the four corners of the longitudinal reinforcing plate (201) and the transverse reinforcing plate (202).

2. The lightweight, impact-resistant distribution box according to claim 1, characterized in that: The front of the box (1) is hinged with a box door (3), which is made of aluminum-magnesium alloy plate.

3. The lightweight, impact-resistant distribution box according to claim 2, characterized in that: The inside of the door (3) is equipped with a lock (4) for fixed connection with the box body (1), and a handle (5) is installed on the front of the door (3).

4. The lightweight, impact-resistant distribution box according to claim 2, characterized in that: A sealing strip (6) is fixedly connected to the back of the box door (3) through a groove, and the back of the sealing strip (6) is in close contact with the front of the box body (1).

5. The lightweight, impact-resistant distribution box according to claim 2, characterized in that: The inside of the box door (3) is provided with an observation window (7), which is made of polycarbonate sheet.

6. The lightweight, impact-resistant distribution box according to claim 1, characterized in that: The interior of the box (1) is provided with equidistantly arranged heat dissipation holes (8), which are symmetrically arranged on both sides of the box (1).

7. The lightweight, impact-resistant distribution box according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected to a base (9), and the bottom surface of the base (9) is fixedly connected to an anti-slip pad.

8. The lightweight, impact-resistant distribution box according to claim 1, characterized in that: The transverse reinforcing plate (202), longitudinal reinforcing plate (201), and reinforcing short plate (203) are integrally formed.

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