A box panel connection structure, supporting keel and distribution box

Abstract

The present invention discloses a box-plate connection structure, a supporting keel and a distribution box, comprising a keel body, wherein the keel body comprises a plurality of ventilation ducts plugged in sequentially, and a clamping part for clamping to a cabinet body of a distribution cabinet is arranged on the ventilation duct. The box-plate connection structure, the supporting keel and the distribution box provided by the invention, wherein the keel body is formed by a plurality of ventilation ducts plugged in mutually, and the ventilation ducts are clamped to the cabinet body of the distribution cabinet through the clamping part, so that both on-site installation and pre-installation are extremely convenient, and a large amount of welding work is saved, the keel is easy to install and disassemble, and can be assembled almost arbitrarily, and in actual use, the electric instruments inside the box body generate heat and transfer the heat to the keel, the air temperature inside the keel rises, flows upward, and flows out from the air outlet above the ventilation duct, and the cold air from the outside flows in from the air inlet below the ventilation duct, thereby forming a chimney effect, and the air flow rate inside the ventilation duct is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a box plate connection structure, a supporting keel and a distribution box. Background Art

[0002] With the development of modern science and technology, people are increasingly developing and utilizing electric energy. Electric energy is also an economical, practical, clean, easy to control and convert energy form. According to the characteristics of electric energy, many instruments that use electric energy as energy have appeared in modern society. In order to centrally control electrical instruments, the controllers of electrical instruments are generally installed in distribution boxes. One distribution box can control the working status of multiple electrical instruments.

[0003] According to patent number CN109244867A, published (announced) date 2019.01.18, a heat dissipation distribution box is disclosed, including a box body and a box door, the box body is composed of a frame and a box plate, one side of the box door is connected to the box body by a movable hinge; the box body is also provided with reinforcing ribs, the reinforcing ribs are located in the middle of the frame, and are fixedly connected to the frame; the side of the box body is provided with vents, the vents are composed of a heat-conducting main copper tube, a heat-conducting auxiliary copper tube and a metal mesh, the heat-conducting auxiliary copper tubes are connected by a metal mesh, the metal mesh The box body is combined with the heat-conducting auxiliary copper tubes by weaving, and the heat-conducting auxiliary copper tubes are arranged in a vertical interval. Both ends of each heat-conducting auxiliary copper tube are connected with the heat-conducting main copper tube. The diameter of the heat-conducting auxiliary copper tube is smaller than the diameter of the heat-conducting main copper tube. The heat-conducting auxiliary copper tube and the heat-conducting main copper tube are filled with lauric acid. A fixed joint is arranged on the top of the box body near the box door along the length direction of the crossbeam, and the crossbeam is provided with hooks on at least two sides; a lighting mechanism is connected to the fixed joint, and a power interface is provided in the fixed joint, and the power interface of the fixed joint is a female interface. The device is equipped with a lighting mechanism on the top side of the box door along the length direction of the crossbeam, which can illuminate the interior of the entire distribution box and is convenient for operation; the device is equipped with a hook on the crossbeam, and the lighting mechanism is equipped with a hook and a tightening handle to tighten the lighting mechanism; the fixed joint of the device is rotatable and can be rotated 360 degrees, which is convenient for installation and avoids the entanglement of cables. The fixed joint of the device presses the upper and lower parts together through a spring, so that the copper tube and the tube pin are in close contact, reducing the contact resistance. The spherical protrusion on the tube pin increases the contact area, stabilizes the resistance of the circuit, and reduces the failure rate of the lighting mechanism.

[0004] The traditional production of distribution boxes is to select keels and cut plates according to predetermined specifications, then simply assemble the keels and plates, and finally weld the keels and plates with a welding gun. In addition, the existing keels are welded in one piece, which is inconvenient to install and disassemble. At the same time, the entire production and assembly process contains a lot of welding work and is not suitable for on-site operation. Summary of the invention

[0005] The purpose of the present invention is to provide a box plate connection structure, a supporting keel and a distribution box, aiming to solve the problem that the plate and the keel of a traditional distribution cabinet are welded together in one piece, which makes installation and disassembly inconvenient.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a supporting keel, including a keel body, wherein the keel body includes a plurality of ventilation ducts plugged in sequentially, and the ventilation ducts are provided with a clamping portion for clamping to a distribution cabinet body.

[0007] Preferably, the ventilation duct is L-shaped, and the air outlet of the ventilation duct is higher than the air inlet.

[0008] A box board connection structure, comprising the supporting keel described in the above scheme, and also comprising a fixing assembly, wherein the fixing assembly comprises an elastic plate, and a plurality of elastic plates are movably arranged on the clamping portion respectively;

[0009] It also includes two side plates that are arranged opposite to each other, and the side plates are provided with no less than two puncture holes. After the clamping part is inserted into the puncture holes, the elastic plate is flipped over to clamp the side plates onto the keel body.

[0010] Preferably, a fixing block is provided on the elastic plate, and the fixing block and the elastic plate are driven to fold to fix the side plate.

[0011] Preferably, a guide plate is movably provided on the fixed block, and the guide plate is driven to move to guide the airflow into the ventilation duct.

[0012] Preferably, the clamping portion comprises two baffles symmetrically arranged in the ventilation duct, and the baffles are driven to move to drive the guide plate to move.

[0013] Preferably, the baffle is provided with a tenon block extending into the interior of the guide plate, the guide plate is provided with an inclined tenon groove adapted to the tenon block, the baffle is driven to rotate to drive the tenon block to move along the tenon groove, and then drive the guide plate to move.

[0014] Preferably, a back plate is further included, and a mounting assembly is arranged on the keel body, wherein the mounting assembly includes a mounting plate movably mounted on the keel body and a fixing plate symmetrically and movably mounted on the back plate, and when the mounting plate is driven to move toward the back plate, the fixing plates move closer.

[0015] Preferably, the mounting plate is symmetrically and movably provided with a collar adapted to the fixing plate, and the mounting plate is driven to move toward the back plate to drive the collar to move and bring the two fixing plates closer.

[0016] A distribution box comprises the box-plate connection structure described in the above scheme, wherein the side plate is the side plate of the distribution box.

[0017] In the above technical scheme, the present invention provides a box panel connection structure, a supporting keel and a distribution box, which have the following beneficial effects: the keel body is formed by a plurality of ventilation ducts plugged into each other, and the ventilation ducts are clipped to the cabinet body of the distribution cabinet through the clip-on part, so that both on-site installation and pre-installation are extremely convenient, and a lot of welding work is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of an installation assembly provided in an embodiment of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 A schematic diagram of the structure of the back of a box provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the internal structure provided by an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0025] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0026] Figure 8 A schematic diagram of the structure of a clamping portion provided in an embodiment of the present invention;

[0027] Fig. 9 for Figure 8 Enlarged view of point D in the middle.

[0028] Description of reference numerals:

[0029] 11. Top plate; 111. Shielding cover; 12. Side plate; 121. Puncture hole; 13. Back plate; 131. Bump; 14. Bottom plate; 15. Keel body; 151. Ventilation duct; 152. Clamping part; 16. Door; 2. Fixing assembly; 21. Fixing block; 22. Elastic plate; 23. Drainage plate; 24. Baffle; 25. Tenon block; 26. Tenon groove; 27. Elastic sheet; 28. Lock rod; 3. Installation assembly; 31. Installation plate; 32. Heat dissipation vest; 33. Connecting rod; 34. Ring; 35. Fixing sheet. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] like Figure 1-9 As shown, a box-plate connection structure, a supporting keel and a distribution box include a keel body 15, the keel body 15 includes a plurality of ventilation ducts 151 plugged in sequence, and the ventilation ducts 151 are provided with a clamping portion 152 for clamping to the distribution cabinet body.

[0032] Specifically, the current production of distribution boxes mostly selects suitable keels according to product specifications, then cuts plates according to the keels, and finally welds the plates and keels together. This is a prior art and will not be described in detail. The keel body 15 in this embodiment is composed of a plurality of ventilation ducts 151 that are plugged in sequence, and can be assembled almost at will. Moreover, the outside air can also flow in the ventilation ducts 151. The air flowing in the ventilation ducts 151 can take away the heat in the distribution cabinet, accelerate the heat dissipation of the distribution cabinet, and the keel body 15 is fixed by the clamping portion 152 on the ventilation duct 151. On the distribution cabinet body, compared with the traditional keel, the keel body 15 requires less welding work, and only needs a few spot weldings at the connection to completely fix it. Specifically, the clamping part 152 can be a metal clamping foot cooperating with a screw to clamp the ventilation duct 151 to the distribution cabinet body; or a tenon tube is set on the distribution cabinet body, and a tenon rod is set on the ventilation duct 151, and the ventilation duct 151 and the distribution cabinet body are clamped together by the tenon tube and the tenon rod; it can also be a fixing clip or other structures that can be directly obtained by technical personnel in this field according to common technical knowledge.

[0033] In the above technical solution, the keel body 15 is composed of multiple ventilation ducts 151 plugged into each other, and the ventilation ducts 151 are clipped onto the cabinet body of the power distribution cabinet through the clip-on portion 152, so that both on-site installation and pre-installation are extremely convenient and a lot of welding work is saved.

[0034] As an embodiment provided by the present invention, Figure 2As shown, the ventilation duct 151 is specifically L-shaped, and the air outlet of the ventilation duct 151 is higher than the air inlet. When in use, the internal temperature of the distribution box increases, and this temperature is transmitted to the keel body 15, so that the temperature inside the ventilation duct 151 increases, and the gas inside the ventilation duct 151 expands and flows out from the air outlet of the ventilation duct 151. At the same time, the outside cold air enters from the air inlet of the ventilation duct 151, and the ventilation duct 151 forms a chimney effect, which accelerates the flow of internal gas and takes away more heat. Specifically, the cross-section of the ventilation duct 151 can be circular. Circular ducts are easier to seal than tubes of other shapes, and the gas flowing in the circular duct encounters less resistance, which is more conducive to heat exchange. The cross-section of the ventilation duct 151 can also be elliptical. The elliptical shape has a larger area close to the heating element, can conduct more heat, and has a better heat dissipation effect. The cross-section of the ventilation duct 151 can also be triangular. The structure of the triangular ventilation duct 151 is more stable and is not easily deformed even if squeezed. The cross-section of the ventilation duct 151 can also be polygonal, rhombus, or other structures that can be directly obtained by technical personnel in this field based on common technical knowledge.

[0035] As another embodiment further provided by the present invention, Figure 5 and 7 As shown, 3, it also includes a fixing assembly 2, the fixing assembly 2 includes an elastic plate 22, and a plurality of elastic plates 22 are movably arranged on the clamping portion 152;

[0036] The side panels 12 are also provided with two opposite side panels, each of which has at least two puncture holes 121. After the clamping parts 152 are inserted into the puncture holes 121, the elastic plate 22 is flipped over to fix the side panels 12 on the keel body 15. During installation, the side panels 12 are inserted into the keel body 15, the clamping parts 152 on the keel body 15 are inserted into the puncture holes 121 on the side panels 12, the side panels 12 push the elastic plate 22, and the elastic plate 22 is flipped over to fix the side panels 12 on the keel body 15. Specifically, the elastic plate 22 can be an L-shaped plate with a certain elasticity. When the elastic plate 22 is in the initial position, the plate of the elastic plate 22 close to the ventilation duct 151 is in the clamping portion 152, and its top is flush with the top of the clamping portion 152, and the other part extends to the outside of the clamping portion 152. When the side plate 12 is installed on the keel body 15, the elastic plate 22 is first rotated to rotate the elastic plate 22 90°, and then the side plate 12 is plugged into the keel body 15. At this time, part of the multiple elastic plates 22 are in the puncture hole 121, and the other part is between the keel body 15 and the puncture hole 121. The side plate 12 is pushed toward the center of the keel body 15 at this time, and the side plate 12 squeezes the elastic plate 22 and deforms it, and the angle between the two side walls of the elastic plate 22 becomes larger. When the side plate 12 is fully inserted into the clamping portion 152 and is tightly attached to the side wall of the ventilation duct 151, the side plate 12 reaches the predetermined position. After it reaches the predetermined position, the elastic plate 22 recovers its original shape and flips to the initial position under the action of its own elasticity. The plate of the elastic plate 22 close to the ventilation duct 151 is in the clamping portion 152, and its top is flush with the top of the clamping portion 152 and abuts against the side of the puncture port 121. The elastic plate 22 is arranged on the wall, and the other part extends to the outside of the clamping portion 152 and abuts against the side wall on the opposite side of the side plate 12. The elastic plate 22 fixes the side plate 12 on the keel body 15; it can also be a straight plate directly installed on the keel body 15 at an angle, and the elastic plate 22 is inclined to the outside of the port of the keel body 15. When installing the side plate 12, first bend the elastic plate 22 to make the elastic plate 22 tilt toward the inside of the port of the keel body 15, and then insert the side plate 12 into the keel body 15. Multiple elastic plates 22 are inserted into the puncture holes 121 on the side plate 12. At this time, the side plate 12 is pushed toward the center of the keel body 15. 2. When the side panel 12 reaches the predetermined position, the elastic plate 22 returns to its original state and fixes the side panel 12 on the keel body 15; the elastic plate 22 can also be an elastic locking piece. When the side panel 12 is installed on the keel body 15, the side panel 12 is first inserted into the keel body 15, and the port of the keel body 15 is located in the puncture hole 121 of the side panel 12. At this time, the side panel 12 is pushed toward the center of the keel body 15. When the side panel 12 reaches the predetermined position, the elastic locking piece fixes the side panel 12 on the keel body 15; or other structures that can be directly obtained by those skilled in the art according to common technical knowledge.

[0037] As another embodiment further provided by the present invention, Figure 5 and 7 As shown, a fixing block 21 is provided on the elastic plate 22, and the fixing block 21 and the elastic plate 22 are driven to be folded to fix the side plate 12. In the initial position, the elastic plate 22 is inside the clamping portion 152 and its top is flush with the top of the clamping portion 152, and the fixing block 21 extends to the outside of the clamping portion 152. When the side plate 12 is installed on the keel body 15, the fixing block 21 and the elastic plate 22 are first flipped over so that the fixing block 21 is located inside the ventilation duct 151 and the elastic plate 22 is located outside the ventilation duct 151. At this time, the side plate 12 is inserted into the ventilation duct 151, and the ventilation duct 151 is inserted into the puncture hole 121 on the side plate 12, and the side plate 12 is pushed to move toward the center of the keel body 15, and the side plate 12 squeezes the elastic plate 22. The plate 22 is elastically engaged with the fixing block 21 and deformed, and the angle between the elastic plate 22 and the fixing block 21 becomes larger. When the side plate 12 is fully inserted into the clamping portion 152 and is tightly attached to the side wall of the ventilation duct 151, the side plate 12 reaches the predetermined position. After reaching the predetermined position, under the action of the elastic force of the elastic plate 22, the elastic plate 22 and the fixing block 21 return to their original positions. The elastic plate 22 is located inside the ventilation duct 151 and abuts against the side wall of the puncture opening 121. The fixing block 21 is located outside the ventilation duct 151 and abuts against the side wall of the side plate 12, thereby fixing the side plate 12 to the keel body 15.

[0038] As another embodiment further provided by the present invention, a guide plate 23 is movably provided on the fixed block 21, and the guide plate 23 is driven to move to guide the airflow into the ventilation duct 151. When in use, the internal temperature of the distribution box increases, and this temperature is transmitted to the keel body 15, so that the temperature inside the ventilation duct 151 increases, and the gas inside the ventilation duct 151 expands and flows out from the air outlet of the ventilation duct 151. At the same time, the external cold air enters from the air inlet of the ventilation duct 151, and the ventilation duct 151 forms a chimney effect, which accelerates the flow of gas inside it, so that more heat is taken away. At the same time, the guide plate 23 is driven to rotate toward the outside of the ventilation duct 151. At this time, the opening angle of the guide plate 23 is larger, and more airflow hits the guide plate 23 and enters the ventilation duct 151 under the guidance of the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box. Specifically, a motor may be arranged on the fixed block 21, and the guide plate 23 may be fixedly installed on the output end of the motor. When the electrical instruments inside the distribution box are working, the temperature inside the distribution box increases, and the temperature of the keel body 15 also increases. At this time, more airflow is required to enter the ventilation duct 151 of the keel body 15. At this time, the motor works to drive the guide plate 23 to rotate toward the outside of the ventilation duct 151. At this time, the opening angle of the guide plate 23 is larger, and more airflow hits the guide plate 23 and enters the ventilation duct 151 through the guidance of the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box. Alternatively, an electric telescopic rod may be arranged on the fixed block 21, and the electric telescopic rod may be arranged on the fixed block 21. A rocker is rotatably arranged between the output end of the rod and the guide plate 23. When the electrical instruments inside the distribution box are working, the temperature inside the distribution box rises, and the temperature of the keel body 15 also rises. At this time, more airflow is needed to enter the ventilation duct 151 of the keel body 15. At this time, the electric telescopic rod is extended, and the guide plate 23 is driven to rotate toward the outside of the ventilation duct 151 through the rocker. At this time, the opening angle of the guide plate 23 is larger, and more airflow hits the guide plate 23 and enters the ventilation duct 151 under the guidance of the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box; or other structures that can be directly obtained by technical personnel in this field according to common technical knowledge.

[0039] As another embodiment further provided by the present invention, the fixing assembly 2 includes two baffles 24 symmetrically arranged in the ventilation duct 151, and the baffles 24 are driven to move to drive the guide plate 23 to move; when in use, the internal temperature of the distribution box rises, and this temperature is transmitted to the keel body 15, so that the temperature inside the ventilation duct 151 rises, the gas inside the ventilation duct 151 expands, and flows out from the air outlet of the ventilation duct 151, and at the same time, the outside cold air enters from the air inlet of the ventilation duct 151, and the ventilation duct 151 forms a chimney effect, which accelerates the flow of gas inside it, so that more heat is taken away, and the gas will blow The baffle plate 24 is moved to make it approach the inner wall of the ventilation duct 151. At this time, the baffle plate 24 drives the guide plate 23 to rotate toward the outside of the ventilation duct 151. At this time, the opening angle of the guide plate 23 is larger, and more airflow hits the guide plate 23 and enters the ventilation duct 151 under the guidance of the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box. When the internal temperature of the distribution box decreases, the required heat dissipation capacity decreases, and the guide plate 23 and the baffle plate 24 return to their original positions. At this time, the baffle plate 24 almost seals the ventilation duct 151, which can prevent mice or insects from entering the ventilation duct 151.Specifically, a pull rope may be provided between the baffle 24 and the guide plate 23, and a torsion spring may be provided between the guide plate 23 and the fixing block 21. When the temperature inside the distribution box rises, the temperature of the keel body 15 will also rise. The temperature rise of the keel body 15 will enhance the chimney effect, making the gas flow inside the ventilation duct 151 more intense. At this time, the gas will blow the baffle 24, causing the baffle 24 to approach the inner wall of the ventilation duct 151. At this time, the baffle 24 pulls the guide plate 23 through the pull rope, and the guide plate 23 rotates toward the outside of the ventilation duct 151. At this time, the tension of the guide plate 23 is The opening angle is larger, more airflow hits the guide plate 23, and enters the ventilation duct 151 through the guidance of the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box. When the temperature inside the distribution box decreases, the required heat dissipation capacity decreases, and the torsion spring drives the guide plate 23 to return to its original state. The guide plate 23 pulls the baffle 24 through the pull rope to restore the baffle 24 to its original state. At this time, the baffle 24 almost seals the ventilation duct 151, which can prevent mice or insects from entering the ventilation duct 151; it can also be provided between the baffle 24 and the guide plate 23. The bevel gear, a torsion spring is arranged between the guide plate 23 and the fixed block 21. When the temperature inside the distribution box rises, the temperature of the keel body 15 will also rise. The temperature increase of the keel body 15 will enhance the chimney effect, making the gas flow inside the ventilation duct 151 more intense. At this time, the gas will blow the baffle 24, so that the baffle 24 is close to the inside of the ventilation duct 151. At this time, the baffle 24 drives the guide plate 23 to rotate toward the outside of the ventilation duct 151 through the mutually meshing bevel gears. At this time, the opening angle of the guide plate 23 is larger, and more airflow hits the guide plate 23, and The air is guided into the ventilation duct 151 by the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box. When the temperature inside the distribution box decreases, the required heat dissipation capacity decreases, and the torsion spring drives the guide plate 23 to return to its original state. The guide plate 23 drives the baffle 24 to rotate through the mutually meshing bevel gears, so that the baffle 24 returns to its original state. At this time, the baffle 24 almost seals the ventilation duct 151, which can prevent mice or insects from entering the ventilation duct 151; or other structures that can be directly obtained by technical personnel in this field according to common technical knowledge.

[0040] As another embodiment further provided by the present invention, Figure 5 and 7-9, the baffle 24 is provided with a tenon 25 extending to the inside of the guide plate 23, and the guide plate 23 is provided with an inclined tenon groove 26 adapted to the tenon 25. The baffle 24 is driven to rotate to drive the tenon 25 to move along the tenon groove 26, and then drive the guide plate 23 to move, and the deeper the tenon groove 26 is away from the fixed block 21, the deeper the depth is. An elastic sheet 27 is provided between the baffle 24 and the ventilation duct 151; when the temperature inside the distribution box rises, the temperature of the keel body 15 will also rise. The increase in the temperature of the keel body 15 will enhance the chimney effect, making the gas flow inside the ventilation duct 151 more intense. At this time, the gas will blow the baffle 24 to make the baffle 24 close to the inner wall of the ventilation duct 151. At this time, the baffle 24 drives the tenon 25 to move along the guide plate 23 The mortise and tenon 26 on the keel body 15 moves. Since the depth of the mortise and tenon 26 is shallower as it approaches the fixing block 21, the baffle 24 will drive the guide plate 23 to rotate toward the outside of the ventilation duct 151. At this time, the opening angle of the guide plate 23 is larger, and more airflow hits the guide plate 23 and enters the ventilation duct 151 through the guidance of the guide plate 23, thereby enhancing the heat dissipation capacity of the keel body 15 and accelerating the heat dissipation of the distribution box. When the temperature inside the distribution box decreases, the required heat dissipation capacity decreases, and the elastic sheet 27 pushes the baffle 24, so that the baffle 24 gradually returns to its original position. The baffle 24 drives the guide plate 23 to move through the mortise and tenon 25, and the guide plates 23 return to their original positions. At this time, the baffle 24 almost seals the ventilation duct 151, which can prevent mice or insects from entering the ventilation duct 151.

[0041] As another embodiment further provided by the present invention, it also includes a backboard 13, and a mounting assembly 3 is arranged on the keel body 15. The mounting assembly 3 includes a mounting plate 31 movably mounted on the keel body 15 and a fixing plate 35 symmetrically and movably mounted on the backboard 13. When the mounting plate 31 is driven to move toward the backboard 13, the fixing plates 35 move closer. When in use, the electrical instrument is first installed on the mounting plate 31, and the wires of the electrical instrument are placed between the two fixing plates 35, and the mounting plate 31 is pressed to embed it into the keel body 15. At this time, the mounting plate 31 approaches the backboard 13, and the fixing plates 35 are driven to move closer to clamp the wires. Specifically, the fixing plate 35 can be symmetrically slidably installed on the back plate 13, and a wedge block is provided on the mounting plate 31, and the fixing plate 35 abuts against the inclined surface of the wedge block. When in use, the electrical instrument is first installed on the mounting plate 31, and the wires of the electrical instrument are placed between the two fixing plates 35, and the mounting plate 31 is pressed to be embedded in the keel body 15. At this time, the mounting plate 31 approaches the back plate 13, and the wedge block on the mounting plate 31 will push the fixing plate 35, so that the two fixing plates 35 are close together, and the wires of the electrical instrument are fixed, so that the wires in the distribution cabinet are regulated, which is convenient for maintenance work; the fixing plate 35 can also be A rocker is rotatably provided between the mounting plate 31 and the fixing plate 35 which are slidably mounted on the back plate 13. When in use, the electrical instrument is first mounted on the mounting plate 31, and the wires of the electrical instrument are placed between the two fixing plates 35, and the mounting plate 31 is pressed to be embedded in the keel body 15. At this time, the mounting plate 31 approaches the back plate 13, and the mounting plate 31 pushes the fixing plate 35 through the rocker to bring the two fixing plates 35 closer together, thereby fixing the wires of the electrical instrument, so that the wires in the distribution cabinet are regulated and maintenance work is convenient; or other structures that can be directly obtained by the common technical knowledge of technicians in this field.

[0042] As another embodiment further provided by the present invention, Figure 2-3 As shown, a connecting rod 33 is provided on the mounting plate 31, and a ring 34 adapted to the fixing plate 35 is symmetrically and movably provided on the connecting rod 33. The mounting plate 31 is driven to move closer to the back plate 13 to drive the ring 34 to move and bring the two fixing plates 35 closer together. When in use, the electrical instrument is first installed on the mounting plate 31, and the wires of the electrical instrument are placed between the two fixing plates 35, and the mounting plate 31 is pressed to make it embedded in the keel body 15. At this time, the mounting plate 31 approaches the back plate 13, and the connecting rod 33 drives the ring 34 to approach the back plate 13. At the same time, the ring 34 moves along the arc of the fixing plate 35, and the two fixing plates 35 gradually move closer. When the ring 34 is located in the middle of the fixing plate 35, the distance between the two fixing plates 35 is the smallest. At this time, the two fixing plates 35 fix the wires of the electrical instrument, so that the wires in the distribution cabinet are regulated, which is convenient for maintenance work.

[0043] As another embodiment further provided by the present invention, Figure 5-6 As shown, a heat dissipation vest 32 extending to the interior of the ventilation duct 151 is provided on the mounting plate 31, and a protrusion 131 extending to the interior of the ventilation duct 151 is provided on the back plate 13, and the side wall of the protrusion 131 close to the air outlet of the ventilation duct 151 is an arc-shaped surface; the heat dissipation vest 32 can transfer the heat generated by the electrical equipment installed on the mounting plate 31 during operation to the ventilation duct 151, which can dissipate heat faster, and the arc-shaped surface can guide the airflow in the ventilation duct 151 to approach the heat dissipation vest 32, so that more air contacts the heat dissipation vest 32, and the heat on the heat dissipation vest 32 can be taken away faster.

[0044] As another embodiment further provided by the present invention, Figure 5-7 As shown, a locking rod 28 is rotatably provided on the elastic plate 22, and a tenon hole adapted to the locking rod 28 is opened on the protrusion 131. During installation, the fixing block 21 and the elastic plate 22 are first flipped over so that the fixing block 21 is located inside the ventilation duct 151 and the elastic plate 22 is located outside the ventilation duct 151. The elastic plate 22 drives the locking rod 28 to move, and the locking rod 28 is retracted into the ventilation duct 151. At this time, the protrusion 131 is first inserted into the ventilation duct 151, and then the side plate 12 is inserted into the ventilation duct 151. The ventilation duct 151 is inserted into the puncture hole 121 on the side plate 12, and the side plate 12 is pushed to move toward the center of the keel body 15. The side plate 12 squeezes the elastic plate 22 and causes it to deform. When the side plate 12 reaches the predetermined position, the elastic plate 22 and the fixing block 21 return to their original positions. The elastic plate 22 is located inside the ventilation duct 151 and abuts against the puncture hole 121. The fixing block 21 is on the side wall of the opening 121, the fixing block 21 is located at the outer side of the ventilation duct 151 and abuts against the side wall of the side panel 12, fixing the side panel 12 on the keel body 15, and the elastic plate 22 drives the locking rod 28 to move, and the locking rod 28 is inserted into the tenon hole on the protrusion 131 to lock the protrusion 131 in the ventilation duct 151. At this time, the back panel 13 is also fixed on the keel body 15. During disassembly, the fixing block 21 is rotated, and the fixing block 21 drives the elastic plate 22 to rotate, and the side panel 12 squeezes the elastic plate 22 and deforms it. When the fixing block 21 is completely moved into the ventilation duct 151, the side panel 12 can be removed from the keel body 15, and the elastic plate 22 drives the locking rod 28 to move, and the locking rod 28 is completely retracted into the interior of the ventilation duct 151. At this time, the protrusion 131 can be taken out of the keel body 15, and the back panel 13 is separated from the keel, which is very convenient to install and disassemble.

[0045] As another embodiment further provided by the present invention, Figure 1 , 4-5 and 7, the top plate 11, the back plate 13 and the bottom plate 14 are respectively inserted between the two side plates 12 arranged opposite to each other, the box door 16 is rotatably installed on one of the side plates 12, the top plate 11 is provided with a shielding cover 111 for shielding the air outlet of the ventilation duct 151, and the side walls on the adjacent sides of the side plates 12 are respectively provided with sliding grooves adapted to the top plate 11, the back plate 13 and the bottom plate 14, and the sliding grooves are provided with notches for facilitating the movement of the shielding cover 111, and the keel body 15 is provided with a slope for guiding the movement of the shielding cover 111. When installing, first turn over the fixing block 21 and the elastic plate 22, so that the fixing block 21 is located inside the ventilation duct 151, the elastic plate 22 is located outside the ventilation duct 151, the elastic plate 22 drives the locking rod 28 to move, and the locking rod 28 is retracted into the ventilation duct 151. At this time, the protrusion 131 is first inserted into the ventilation duct 151, and then the side plate 12 is inserted into the ventilation duct 151, and the ventilation duct 151 is inserted into the puncture hole 121 on the side plate 12, and the side plate 12 is pushed to move toward the center of the keel body 15, and the side plate 12 squeezes the elastic plate 22 and causes it to deform. When the side plate 12 reaches a predetermined After the back plate 13 is fixed to the keel body 15, the elastic plate 22 and the fixing block 21 return to their original positions. The elastic plate 22 is located inside the ventilation duct 151 and abuts against the side wall of the puncture hole 121. The fixing block 21 is located outside the ventilation duct 151 and abuts against the side wall of the side plate 12, fixing the side plate 12 to the keel body 15. The elastic plate 22 drives the locking rod 28 to move, and the locking rod 28 is inserted into the tenon hole on the protrusion 131 to lock the protrusion 131 in the ventilation duct 151. At this time, the back plate 13 is also fixed to the keel body 15, and then the bottom plate 14 is inserted between the two side plates 12. The top plate 11 is inserted between the two side plates 12, and the bottom of the back plate 13 is against the top of the bottom plate 14, and finally the top plate 11 is inserted between the two side plates 12. When the top plate 11 moves, the shielding cover 111 on the top plate 11 will contact the slope of the keel body 15, and move along the slope, from the notch on the slide groove to the outside of the slide groove, and gradually block the air outlet of the ventilation duct 151. When the top plate 11 reaches the predetermined position, the shielding cover 111 blocks the top of the air outlet of the ventilation duct 151 to prevent external debris from entering the ventilation duct 151 from directly above the air outlet of the ventilation duct 151.

[0046] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A box board connection structure, characterized in that: The invention comprises a keel body (15), the keel body (15) comprising a plurality of ventilation ducts (151) plugged in sequentially, the ventilation duct (151) being provided with a clamping portion (152) for clamping onto a cabinet body of a power distribution cabinet, the ventilation duct (151) being specifically L-shaped, and an air outlet of the ventilation duct (151) being higher than an air inlet; and further comprising a fixing assembly (2), the fixing assembly (2) comprising an elastic plate (22), and a plurality of elastic plates (22) being movably arranged on the clamping portion (152); It also includes two side plates (12) arranged opposite to each other, the side plates (12) being provided with no less than two puncture holes (121), and the clamping portion (152) being inserted into the puncture holes (121) and then the elastic plate (22) is turned over to clamp the side plates (12) onto the keel body (15); A fixing block (21) is provided on the elastic plate (22), and the fixing block (21) and the elastic plate (22) are driven to flip over to fix the side plate (12); A guide plate (23) is movably provided on the fixed block (21), and the guide plate (23) is driven to move so as to guide the airflow into the ventilation duct (151); The clamping portion comprises two baffles (24) symmetrically arranged in the ventilation duct (151), and the baffles (24) are driven to move so as to drive the guide plate (23) to move; The baffle plate (24) is provided with a tenon block (25) extending into the interior of the guide plate (23); the guide plate (23) is provided with an inclined tenon groove (26) adapted to the tenon block (25); the baffle plate (24) is driven to rotate to drive the tenon block (25) to move along the tenon groove (26), thereby driving the guide plate (23) to move; It also includes a back plate (13), the keel body (15) being provided with a mounting assembly (3), the mounting assembly (3) comprising a mounting plate (31) movably mounted on the keel body (15) and a fixing plate (35) symmetrically movably mounted on the back plate (13), and when the mounting plate (31) is driven to move toward the back plate (13), the fixing plate (35) moves closer; The mounting plate (31) is symmetrically and movably provided with a sleeve ring (34) adapted to the fixing plate (35); the mounting plate (31) is driven to move toward the back plate (13) to drive the sleeve ring (34) to move and bring the two fixing plates (35) closer together.

2. A distribution box, characterized in that: It comprises the box-panel connection structure of claim 1, wherein the side panel (12) is the side panel of the distribution box.

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