Inverter shell device with self-locking cooling air duct

Abstract

The invention relates to the technical field of inverter shells, in particular to an inverter shell device with self-locking cooling air flues, which comprises a shell, a plurality of cooling fins are fixed on two sides of the shell at equal intervals, the air flues are mounted on the inner sides of two sides of an opening of the shell, and each air flue comprises a fan assembly fixedly mounted with the shell. The air outlet end of the fan assembly is fixedly communicated with a rectangular pipeline, one end of the rectangular pipeline is sealed and fixed to the inner side of the shell, a plurality of second air outlet holes are formed in the bottom face of the rectangular pipeline, and baffles are rotationally connected into the second air outlet holes. According to the invention, the two air ducts are installed at the opening of the inverter, the bottom surface of the rectangular pipeline of each air duct is provided with the second air outlet hole which is locked or opened through the baffle plate, and each second air outlet hole can separately blow dispersed heat to an area with a fast temperature rise or a high temperature, thereby facilitating the reduction of the local overheating risk, and improving the reliability of the inverter. And the heat dissipation efficiency of the inverter shell can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inverter shell, in particular to an inverter shell device with self-locking cooling air duct. BACKGROUND

[0002] The inverter shell is an external protection device of the inverter, which encapsulates the electronic components, circuit boards and the like inside the inverter in a relatively closed space to play a role of isolation, protection and support. In order to help the electronic components on the inverter dissipate heat, heat dissipation structures such as heat dissipation fins, fans, heat dissipation holes and cooling air ducts are generally installed on the shell. The heat dissipation structures are mainly manifested as follows in specific implementation: the heat dissipation fins guide the heat inside the shell out, the heat dissipation holes discharge hot air inside the shell, and the fans blow air to the inside of the shell through the cooling air duct to dissipate heat. The high-frequency switching components (such as MOSFET) on the inverter usually heat up faster than the low-frequency components (such as transformers). When the inverter operates at high power, the heat generated by IGBT and inductance also increases dramatically, which leads to temperature difference of heat in different areas inside the shell. Most of the heat dissipation air ducts on the shell can only blow air to dissipate heat to the inside of the shell as a whole, and cannot focus on dissipating heat to the areas with large heat generation by automatically locking or opening the air ducts at different positions, which easily increases the risk of local overheating. In addition, the air inside most of the cooling air ducts is limited to dissipating heat to the electronic components, and cannot dissipate heat to the heat dissipation fins, which leads to single function of the cooling air duct. SUMMARY

[0003] The purpose of the present application is to provide an inverter shell device with self-locking cooling air duct to solve the problems raised in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme: An inverter shell device with self-locking cooling air duct, comprising: An outer shell, a plurality of heat dissipation fins are fixed on both sides of the outer shell; Two air ducts, the air ducts comprise a fan assembly fixedly connected with the outer shell, a rectangular pipe is fixedly connected in communication with the air outlet end of the fan assembly, a plurality of air outlet holes two are formed in the bottom surface of the rectangular pipe, and a baffle is rotatably connected in the air outlet holes two; Two drive mechanisms capable of driving the baffle to rotate to open or lock the air outlet holes two, the drive mechanisms comprise a support seat, a shaft rod in transmission connection with the fan assembly is rotatably connected to the support seat, and a plurality of transmission shafts capable of driving the baffle to rotate are fixed on the outer side of the shaft rod; Two conduction mechanisms capable of making the air inside the rectangular pipe blow to the heat dissipation fins, the conduction mechanisms comprise a fixed plate embeddedly fixed with the rectangular pipe, and a movable plate in transmission connection with the transmission shaft is slidably connected to the outer side of the fixed plate.

[0005] Further in, both sides of the shell are provided with a plurality of air outlet holes one, one end of the shell is provided with a heat dissipation hole, and the top of the shell is detachably provided with a cover plate.

[0006] Further in, both sides of the shell are provided with a plurality of air outlet holes one, one end of the shell is provided with a heat dissipation hole, and the top of the shell is detachably provided with a cover plate.

[0007] Further in, one end of the baffle is rotatably connected with a rotating shaft one, one end of the rotating shaft one penetrates the rectangular pipe and is fixedly connected with a pushing block one, and the pushing block one is drivingly connected with the transmission shaft.

[0008] Further in, a plurality of rectangular holes are formed in the movable plate and the fixed plate, and a reset spring is fixed between the movable plate and the fixed plate.

[0009] Further in, one end of the movable plate is fixedly connected with a traction rope, one end of the traction rope penetrates the rectangular pipe and is fixedly connected with a pushing block two, the pushing block two is rotatably connected with the rectangular pipe, and the pushing block two is drivingly connected with the transmission shaft.

[0010] Further in, the fan assembly comprises a fan frame fixedly connected with the shell, one end of the fan frame is fixedly connected with a double-shaft motor, and the output end of the double-shaft motor is fixedly connected with a fan blade.

[0011] Further in, the outer side of the fan blade is drivingly connected with a connecting shaft through a one-way bearing, the outer side of the connecting shaft is fixedly connected with a circular plate, one end of the shell is provided with a plurality of fan-shaped holes one, and a plurality of fan-shaped holes two are uniformly formed in the circular plate.

[0012] Further in, the rectangular pipe and the fan frame are fixedly connected with a fan cover in communication, and the support seat is fixedly connected with the fan cover.

[0013] Further in, the output end of the double-shaft motor away from the fan frame and one end of the shaft rod are fixedly connected with a belt wheel, a synchronous belt is drivingly connected between the two belt wheels, and a one-way bearing is sleeved between one of the belt wheels and the motor output end.

[0014] Compared with the prior art, the beneficial effects of the present application are: By providing a plurality of air outlet holes two on the bottom surface of the rectangular pipe of the air duct, which are directed to different areas inside the shell, and rotatably connecting a baffle inside the air outlet hole two, one of the output ends of the double-shaft motor of the fan assembly drives the shaft rod to rotate, and the transmission shafts at different positions on the shaft rod can successively drive the pushing blocks one at different positions to rotate, so that the baffles inside the air outlet holes two at different positions can be selectively rotated and opened according to needs, the air outlet holes two above the area where the heat increases rapidly or the temperature is relatively high are in an open state, and the air outlet holes two at the remaining positions are in a locked state. The fan blade is driven to rotate in the reverse direction by the other output end of the double-shaft motor, air flow is delivered into the rectangular duct and then targeted to blow out of the opened air outlet two towards the high-temperature area, and the air outlet two at different positions of the air duct is automatically locked or opened to focus on heat dissipation for the area with larger heat generation, which helps to avoid the risk of local overheating and improve the efficiency of heat dissipation of the inverter shell.

[0015] The shaft rod is driven to rotate by the output end of the double-shaft motor, which drives the transmission shaft on the shaft rod to drive the second toggle block to rotate, and the downward tension of the traction rope caused by the rotation of the second toggle block moves the movable plate outside the fixed plate, so that the movable plate is in communication with the rectangular hole on the fixed plate, and the rectangular duct is connected to the gap position of the plurality of heat sinks through the rectangular hole, air is sent into the rectangular duct by the fan assembly, and then blown to the heat sinks through the rectangular hole and the air outlet one to dissipate heat, which helps to improve the heat dissipation efficiency of the heat sinks, and further enables the heat inside the inverter shell to be quickly dissipated.

[0016] Two air ducts are installed at the opening of the shell, and the air outlet two at the opposite positions of the two air ducts is staggered, so that the air outlet two on the two air ducts can cover a large area of different areas inside the inverter, and the locking and opening of the air outlet two on the two air ducts can be individually controlled by the driving mechanism driven by the double-shaft motor (refer to any two air ducts in Figure 6 different positions of the air outlet two in the open state diagram), so that the two air ducts can cooperate to blow and dissipate heat to multiple high-temperature areas at the same time, further improving the heat dissipation efficiency of the inverter shell.

[0017] When the inverter is in low-power operation and does not need to dissipate heat by both air ducts, only one air duct can be used for heat dissipation, and when the inverter is working in an outdoor environment with a lot of dust, the air outlet two on the air duct can be closed to effectively prevent dust in the air from entering the shell and polluting the electronic components of the inverter, and the gap position between the rectangular duct and the heat sink is connected by the conduction mechanism. At this time, although the airflow in the air duct cannot enter the shell for heat dissipation, it can be blown to the heat sink, and the heat dissipation efficiency of the heat sink is improved to quickly dissipate the heat inside the shell through the heat sink, indirectly improving the heat dissipation efficiency of the inverter shell in special environments.

[0018] One output end of the double-shaft motor is connected with the shaft rod through a belt wheel, and the other output end is fixed with a fan blade, and the outer side of the fan blade is connected with a circular plate through a connecting shaft, wherein a one-way bearing is sleeved between the belt wheel and the shaft of the double-shaft motor output end and between the connecting shaft and the fan blade, when the output end of the double-shaft motor rotates towards a certain direction to make the fan blade rotate at high speed, the heat dissipation airflow is transported to the air duct, and under the action of the one-way bearing, the shaft rod and the circular plate do not rotate at this time, when the output end of the double-shaft motor slowly rotates towards the opposite direction of the above direction, the one-way bearing makes the shaft rod and the connecting shaft rotate synchronously with the output end of the double-shaft motor; The rotation of the shaft rod can control the opening and locking of the air outlet hole two of the air duct, and the rotation of the connecting shaft can control the communication state of the fan-shaped hole two on the circular plate and the fan-shaped hole one on the shell, when the air outlet hole two on the air duct is opened or the air outlet hole one is communicated with the rectangular pipe, the fan-shaped hole two is communicated with the fan-shaped hole one, which facilitates the outside air to be sucked into the air duct by the fan blade rotating in the later period, and when the air outlet hole two on the air duct and the rectangular hole are all locked, the fan-shaped hole two is locked with the fan-shaped hole one, so that the fan-shaped hole one for air intake and exhaust can be closed through the circular plate when the inverter is not used, which helps to prevent the dust and impurities in the outside from entering the air duct through the fan-shaped hole one. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram of the present application; Figure 2 is the internal structure schematic diagram of the shell and the shield in the present application; Figure 3 is the structure schematic diagram of the shell in the present application; Figure 4 is the structure schematic diagram of the shield in the present application; Figure 5 is the external overall structure schematic diagram of the two rectangular pipes in the present application; Figure 6 is the structure schematic diagram of the bottom of the two air ducts in the present application; Figure 7 is the structure schematic diagram of the conduction mechanism in the present application; Figure 8 is the structure schematic diagram of the fixed plate and the movable plate in the split state in the present application; Figure 9 is the internal structure schematic diagram of the fan assembly, the circular plate and the support seat in the present application.

[0020] In the figure: 100, the shell; 110, the fin; 120, the air outlet hole one; 130, the fan-shaped hole one; 140, the shield; 141, the mesh plate one; 142, the L-shaped plate; 143, the mesh plate two; 150, the heat dissipation hole; 160, the fixed block; 170, the cover plate; 180, the electromagnet; 200, the air duct; 210, the fan assembly; 211, the fan frame; 212, the double-shaft motor; 213, the fan blade; 220, the rectangular duct; 221, the air outlet hole two; 222, the fan cover; 223, the connecting seat; 230, the baffle; 231, the knob one; 240, the connecting shaft; 241, the circular plate; 300, the driving mechanism; 310, the support seat; 311, the pulley; 312, the synchronous belt; 320, the shaft rod; 330, the transmission shaft; 400, the conducting mechanism; 410, the fixed plate; 411, the limiting strip; 412, the accommodating cavity; 420, the movable plate; 430, the rectangular hole; 440, the reset spring; 450, the traction rope; 460, the knob two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0022] Embodiment one, please refer to Figure 1 - Figure 9The embodiment of the application provides an inverter shell device with a self-locking cooling air duct, which comprises an outer shell 100, a plurality of heat dissipation fins 110 are fixed at equal intervals on both sides of the outer shell 100, the heat dissipation fins 110 can guide heat in the outer shell 100 outwards, air ducts 200 are mounted on the inner sides of both sides of the open outer shell 100, the air ducts 200 comprise fan assemblies 210 fixedly mounted on the outer shell 100, the fan assemblies 210 can blow outdoor air into the air ducts 200, rectangular pipes 220 are fixedly connected to the air outlet ends of the fan assemblies 210, one end of each rectangular pipe 220 is sealed and fixed to the inner side of the outer shell 100, a plurality of air outlet holes two 221 are formed in the bottom surfaces of the rectangular pipes 220, and baffle plates 230 are rotatably connected in the air outlet holes two 221; a driving mechanism 300 is arranged on one side of the air duct 200 and can drive the baffle plates 230 to rotate to open or lock the air outlet holes two 221, the driving mechanism 300 comprises a support seat 310, a shaft rod 320 is rotatably connected to the support seat 310 and is in transmission connection with the fan assembly 210, a plurality of transmission shafts 330 are fixedly connected to the outer side of the shaft rod 320 and can drive the baffle plates 230 to rotate, a rectangular gap is formed in one side of the rectangular pipe 220, and a guide mechanism 400 is arranged at the position of the rectangular gap and can guide air in the rectangular pipe 220 to blow towards the heat dissipation fins 110, the guide mechanism 400 comprises a fixed plate 410 fixedly embedded in the rectangular pipe 220, and a movable plate 420 is slidably connected to the outer side of the fixed plate 410 and is in transmission connection with the transmission shaft 330.

[0023] Specifically, two air ducts 200 are mounted on the opening of the inverter, the bottom surfaces of the rectangular pipes 220 of each air duct 200 are provided with air outlet holes two 221 which can be locked or opened by the baffle plates 230, each air outlet hole two 221 can blow air to the area which is heated up quickly or has a higher temperature, thereby reducing the risk of local overheating, the double-shaft motor 212 can drive the fan blades 213 to rotate and blow outdoor air into the air duct 200 to cool the inverter, the output end of the double-shaft motor 212 can be reversely and slowly rotated to drive the driving mechanism 300 to control the air outlet holes two 221 to be automatically locked or opened, the output end of the double-shaft motor 212 can also be reversely rotated to drive the guide mechanism 400 to control the air outlet holes one 120 to be automatically locked or opened, the opening of the air outlet holes two 221 is beneficial to the air duct 200 to directly blow air to the electronic elements in the outer shell 100, and the opening of the air outlet holes one 120 is beneficial to the air duct 200 to directly accelerate the heat dissipation of the heat dissipation fins 110 to indirectly cool the electronic elements in the outer shell 100 in the closed state, thereby enriching the functions of the air duct 200 and improving the heat dissipation efficiency of the inverter shell.

[0024] As Figure 3 and Figure 4As shown, in this embodiment, a plurality of air outlet holes 120 are equidistantly arranged on both sides of the shell 100, and the air outlet holes 120 are directed to the gap between the adjacent two heat dissipation fins 110. The shell 100 is fixed with a protective cover 140 on both sides, and the protective cover 140 is fixed with a plurality of L-shaped plates 142 on the inner side. The L-shaped plates 142 are arranged between the two heat dissipation fins 110.

[0025] In this embodiment, when the air flow in the rectangular pipe 220 is transported to the gap between the two heat dissipation fins 110 through the rectangular hole 430 and the air outlet hole 120, the air flow is guided by the L-shaped plate 142 to move downward from the top of the gap along the heat dissipation fin 110, so that the air flow can blow to the heat dissipation fin 110 in a large area, and the heat dissipation speed of the heat dissipation fin 110 is accelerated.

[0026] In this embodiment, the protective cover 140 also plays a role in protecting the heat dissipation fin 110. The mesh plate 141 and the mesh plate 143 on the protective cover 140 can help to discharge the air between the two heat dissipation fins 110 out of the protective cover 140, and the heat volatilized from the heat dissipation fin 110 can be discharged through the mesh plate. The structure and heat dissipation principle of the heat dissipation fin 110 are known in the art, and will not be described here.

[0027] As shown in Figure 1 and Figure 3 , in this embodiment, a heat dissipation hole 150 is formed at one end of the shell 100, and a filter screen for intercepting dust and impurities is installed on the inner side of the heat dissipation hole 150. The heat dissipation hole 150 facilitates the discharge of hot air inside the shell 100. The two open ends of the shell 100 are fixed with fixing blocks 160, and the outer side of the open end of the shell 100 is installed with a cover plate 170. The two ends of the cover plate 170 are detachably installed and fixed with the fixing blocks 160 by screws. Opening the cover plate 170 facilitates maintenance and installation of inverter electronic components.

[0028] As shown in Figure 6 , in this embodiment, the baffle 230 is inserted and fixed at one end with a rotating shaft 1 rotatingly inserted with the rectangular pipe 220. The rotating shaft 1 is fixed at one end of the rectangular pipe 220 with a push block 1 231. The push block 1 231 is in transmission connection with the corresponding position transmission shaft 330. The two adjacent transmission shafts 330 on the shaft rod 320 are arranged at an angle of 90 degrees. The rotating shaft 1 is sleeved with a torsional spring at both ends and the rotating position of the rectangular pipe 220. In the initial state, the elastic force of the torsional spring drives the rotating shaft 1 to rotate and lock the air outlet hole 2 221 with the baffle 230.

[0029] In this embodiment, when it is necessary to rotate the baffle 230 to open, as shown in Figure 5 , here Figure 5The shaft rod 320 of the winning mark turns to illustrate how the shaft rod 320 drives the baffle 230 to turn and open. One output end of the double-shaft motor 212 on the fan assembly 210 drives the shaft rod 320 to rotate 45 degrees clockwise, and the A-position transmission shaft 330 pushes down the inclined push block one 231, and the push block one 231 drives the baffle 230 to rotate to the top surface of the rectangular duct 220 through the rotating shaft one, so as to open the A-position air outlet two 221, and the baffle 230 is locked in the rectangular duct 220, so that the airflow in the rectangular duct 220 is concentrated and blown out from the opened A-position air outlet two 221. When the A-position air outlet two 221 needs to be closed and the B-position air outlet two 221 needs to be opened, the shaft rod 320 continues to rotate 45 degrees clockwise, and at this time, the A-position transmission shaft 330 rotates away from the push block one 231, and the baffle 230 is locked at the A-position air outlet two 221 under the action of the torsional spring and the gravity of the baffle 230 itself. The B-position transmission shaft 330 rotates to the top of the B-position push block one 231, and then the shaft rod 320 rotates 45 degrees clockwise again, the B-position transmission shaft 330 pushes down the inclined push block one 231, and the push block one 231 drives the baffle 230 to rotate to open the B-position air outlet two 221. At this time, the shaft rod 320 continues to rotate 45 degrees clockwise, and the B-position transmission shaft 330 rotates away from the push block one 231. Similarly, the B-position air outlet two 221 is locked by the baffle 230. In this way, the shaft rod 320 continues to rotate 45 degrees clockwise, and the C-position air outlet two 221 is opened. Then, the shaft rod 320 continues to rotate 45 degrees clockwise, and the C-position air outlet two 221 is closed, so that the shaft rod 320 rotates 90 degrees to realize the locking and opening of the air outlet two 221 at each position. The air outlet two 221 at different positions can be selected to be opened or locked.

[0030] As shown in Figure 5 , Figure 7 and Figure 8 , in the embodiment, a plurality of rectangular holes 430 are formed in the movable plate 420 and the fixed plate 410. The rectangular holes 430 in the fixed plate 410 are in communication with the space inside the rectangular duct 220. One end of the movable plate 420 is fixed with a sliding block, one side of the sliding block is fixed with a return spring 440, one end of the fixed plate 410 is provided with a receiving cavity 412, the return spring 440 is inside the receiving cavity 412, one end of the return spring 440 away from the sliding block is fixed with the receiving cavity 412, the outer side of the sliding block is fixed with a traction rope 450, one end of the traction rope 450 penetrating through the rectangular duct 220 is fixed with a push block two 460, one end of the push block two 460 is fixedly connected with a rotating shaft two, the rotating shaft two is rotatably connected with the rectangular duct 220, and the push block two 460 is in transmission connection with the corresponding position transmission shaft 330.

[0031] In the embodiment, the shaft rod 320 is taken as an example to illustrate how the shaft rod 320 drives the baffle 230 to turn and open.Figure 5 The shaft rod 320 is taken as an example to illustrate that the shaft rod 320 drives the guide mechanism 400 to guide the rectangular holes 430 on the fixed plate 410 and the movable plate 420. After the shaft rod 320 rotates 270 degrees clockwise, the locking work of the air outlet hole two 221 in the A, B and C positions is completed. At this time, the transmission shaft 330 in the D position has been rotated to the upper position of the second toggle block 460. Then, the shaft rod 320 rotates 45 degrees clockwise, so that the transmission shaft 330 in the D position pushes the second toggle block 460 to the vertical state. The second toggle block 460 will stretch the traction rope 450 to move the sliding block and the movable plate 420 to the inside of the accommodating cavity 412. At this time, the reset spring 440 is in a compressed state. After the movable plate 420 moves outside the fixed plate 410, the fixed plate 410 and the movable plate 420 are connected to the rectangular holes 430, so that the rectangular pipe 220 is connected to the air outlet hole one 120 on the shell 100 through the two connected rectangular holes 430, and the subsequent air flow in the rectangular pipe 220 can be conveniently conveyed to the gap position of the adjacent heat dissipation fin 110 through the rectangular pipe 220, the two rectangular holes 430 and the air outlet hole one 120.

[0032] In the embodiment, when it is necessary to make the rectangular pipe 220 not connected to the air outlet hole one 120, the shaft rod 320 with the transmission shaft 330 can continue to rotate 45 degrees clockwise, so that the transmission shaft 330 in the D position is away from the second toggle block 460. Under the compression force of the reset spring 440, the sliding block and the movable plate 420 move back to the initial position. The movable plate 420 is misaligned with the rectangular holes 430 on the fixed plate 410, and the movable plate 420 also pulls the second toggle block 460 to rotate to the initial position.

[0033] As shown in Figure 9 In the embodiment, the fan assembly 210 includes a fan frame 211 fixed to the shell 100. One end of the fan frame 211 is fixed with a double-shaft motor 212. The output end of the double-shaft motor 212 is fixed with a fan blade 213, so that the double-shaft motor 212 can drive the fan blade 213 to rotate to convey air to the rectangular pipe 220.

[0034] As shown in Figure 2 and Figure 5 In the embodiment, the rectangular pipe 220 and the fan frame 211 are connected and fixed with a fan cover 222. The fan cover 222 helps to guide the air generated by the rotation of the fan blade 213 to the inside of the rectangular pipe 220 through the fan cover 222.

[0035] As shown in Figure 5 and Figure 9As shown, in this embodiment, the support seat 310 is fixedly connected with the fan cover 222, the middle part of the support seat 310 is hollow, which helps the airflow inside the fan cover 222 to pass through the support seat 310, the end of the support seat 310 away from the shaft 320 is fixed with the double-shaft motor 212, the output end of the double-shaft motor 212 away from the fan frame 211 is fixed with a belt pulley 311, a synchronous belt 312 is transmissionally connected between the two belt pulleys 311, and a one-way bearing is sleeved between the belt pulley 311 on the output end of the double-shaft motor 212 and the output end of the double-shaft motor 212, so that the double-shaft motor 212 can only drive the shaft 320 to rotate in a certain direction, wherein the belt pulley 311 and the synchronous belt 312 are arranged inside the support seat 310.

[0036] As shown in Figure 3 , in this embodiment, two electromagnets 180 are embedded and installed at one end of the shell 100, the end face of the shaft 320 rotationally connected with the shell 100 abuts against the corresponding electromagnet 180, when the shaft 320 is rotated to open a certain air outlet position of the air duct 200, the electromagnet 180 can be energized to attract and fix the shaft 320, so that the position of the shaft 320 on the driving mechanism 300 is locked, thereby maintaining the stability of the opened air outlet during the opening period.

[0037] As shown in Figure 6 , in this embodiment, the outer side of the rectangular duct 220 is fixed with a connecting seat 223 rotationally connected with the shaft 320, so that the shaft 320 can stably rotate outside the rectangular duct 220.

[0038] As shown in Figure 8 , in this embodiment, the outer side of the fixed plate 410 is fixed with two limiting strips 411 capable of stably sliding the movable plate 420, and the movable plate 420 is slidingly abutted against the inner side of the shell 100.

[0039] In the second embodiment, on the basis of the first embodiment, in order to make the fan-shaped hole one 130 of the idle inverter shell 100 in a closed state, prevent dust and impurities in the air from entering the inverter shell.

[0040] As shown in Figure 3 , Figure 3 , and Figure 9 , in this embodiment, the outer side of the fan blade 213 is fixed with a sleeve ring, the connecting shaft 240 is rotationally installed inside the sleeve ring, the one-way bearing is installed between the connecting shaft 240 and the sleeve ring, the circular plate 241 is fixed to the outer side of the connecting shaft 240, a plurality of fan-shaped holes one 130 are uniformly formed at one end of the shell 100, a plurality of fan-shaped holes two are uniformly formed on the circular plate 241, the sizes of the fan-shaped holes one 130 and the fan-shaped holes two are the same, and the corresponding central angles are 45 degrees.

[0041] In the embodiment, the double-shaft motor 212 rotates with the fan blade 213 under the action of the one-way bearing, and the connecting shaft 240 does not rotate with the circular plate 241. When the double-shaft motor 212 reversely rotates with the fan blade 213, the connecting shaft 240 rotates with the circular plate 241. When the fan-shaped hole two on the circular plate 241 communicates with the fan-shaped hole one 130 on the shell 100, the fan blade 213 rotates to suck air. When the fan-shaped hole two is misaligned with the fan-shaped hole one 130 to be closed, the air inlet position of the shell 100 is locked, and foreign matter is prevented from entering the shell 100.

[0042] In the embodiment, one side of the circular plate 241 rotates and abuts against the position where the fan-shaped hole one 130 is formed on the shell 100, and a rubber pad is fixed to the side of the circular plate 241. The rubber pad can increase the friction between the circular plate 241 and the shell 100, and prevent the circular plate 241 from rotating on the shell 100 by itself.

[0043] In the embodiment, the double-shaft motor 212 rotates with the shaft rod 320, and the connecting shaft 240 also rotates with the circular plate 241. The circular plate 241 rotates by 90 degrees to open and close the fan-shaped hole one 130 once, and the shaft rod 320 rotates by 90 degrees to open and close the position air outlet (including the air outlet one 120 and the air outlet two 221) once, so that the rotation periods of the two are the same. In this way, when the air outlet is opened, the fan-shaped hole one 130 is opened to intake air, and when the air outlet is closed, the fan-shaped hole one 130 is closed to stop air intake. If the air outlet is opened for a long time, the fan-shaped hole one 130 is opened for a long time to intake air.

[0044] In the embodiment, multiple temperature sensors can be installed in different areas inside the inverter shell. The temperature sensors can detect the local high-temperature area inside the shell, and then use the prior art controller to control the double-shaft motor 212 to operate with the driving mechanism 300 to open the air outlet at different positions to dissipate heat. The use of the temperature sensor and the controller is the prior art, and the specific system control principle is not described in detail.

[0045] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims to which they relate.

[0046] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An inverter housing device with a self-locking cooling air duct, characterized in that, Include: The shell (100), both sides of the shell (100) are fixed with a plurality of fins (110); Two air ducts (200), the fan assembly (210) is fixedly connected with the shell (100), the air outlet end of the fan assembly (210) is communicated with a rectangular pipe (220), a plurality of air outlet holes two (221) are formed in the bottom surface of the rectangular pipe (220), and a baffle (230) is rotatably connected in the air outlet hole two (221); Two drive mechanisms (300) can drive the baffle (230) to rotate to open or lock the air outlet hole two (221), the drive mechanism (300) comprises a support seat (310), the support seat (310) is rotatably connected with a shaft (320) which is in transmission connection with the fan assembly (210), a plurality of transmission shafts (330) which can drive the baffle (230) to rotate are fixed on the outer side of the shaft (320); Two conduction mechanisms (400) can make the air in the rectangular pipe (220) blow to the fins (120), the conduction mechanism (400) comprises a fixed plate (410) which is embeddedly fixed with the rectangular pipe (220), and the outer side of the fixed plate (410) is slidably connected with a movable plate (420) which is in transmission connection with the transmission shaft (330).

2. The inverter housing device having a self-locking cooling air duct according to claim 1, characterized by, A plurality of air outlet holes one (120) are formed in both sides of the shell (100), a heat dissipation hole (150) is formed in one end of the shell (100), and a cover plate (170) is detachably installed on the top of the shell (100).

3. The inverter housing device having a self-locking cooling air duct according to claim 1, wherein The shell (100) is fixed with a protective cover (140) on both sides, a plurality of L-shaped plates (142) are fixed on the inner side of the protective cover (140), and the L-shaped plates (142) are arranged between two fins (110) at corresponding positions.

4. The inverter housing device having a self-locking cooling air duct according to claim 1, wherein One end of the baffle (230) is rotatably connected with a rotating shaft one which is rotatably connected with the rectangular pipe (220), one end of the rotating shaft one penetrates the rectangular pipe (220) and is fixedly connected with a push block one (231), and the push block one (231) is in transmission connection with the transmission shaft (330) at a corresponding position.

5. The inverter housing device having a self-locking cooling air duct according to claim 1, wherein A plurality of rectangular holes (430) are formed in the movable plate (420) and the fixed plate (410), and a return spring (440) is fixed between the movable plate (420) and the fixed plate (410).

6. The inverter housing device with self-locking cooling air duct according to claim 5, characterized in that, One end of the movable plate (420) is fixedly connected with a traction rope (450), one end of the traction rope (450) penetrates the rectangular pipe (220) and is fixedly connected with a push block two (460), the push block two (460) is rotatably connected with the rectangular pipe (220), and the push block two (460) is in transmission connection with the transmission shaft (330) at a corresponding position.

7. The inverter housing device with self-locking cooling air duct according to claim 1, wherein The fan assembly (210) comprises a fan frame (211) fixed with the shell (100), one end of the fan frame (211) is fixedly connected with a double-shaft motor (212), and the output end of the double-shaft motor (212) is fixedly connected with a fan blade (213).

8. The inverter housing device with self-locking cooling air duct according to claim 7, characterized in that, The outer side of the fan blade (213) is drivenly connected with a connecting shaft (240) through a one-way bearing, the outer side of the connecting shaft (240) is fixedly connected with a circular plate (241), one end of the shell (100) is provided with a plurality of fan-shaped holes (130), and the circular plate (241) is uniformly provided with a plurality of fan-shaped holes (130).

9. The inverter housing device having a self-locking cooling air duct according to claim 7, wherein The rectangular pipeline (220) and the fan frame (211) are fixedly connected with a fan cover (222) in communication, and the support seat (310) is fixedly connected with the fan cover (222).

10. The inverter housing device with self-locking cooling air duct according to claim 9, characterized in that, The output end of the double-shaft motor (212) away from the fan frame (211) and one end of the shaft rod (320) are fixedly connected with a belt wheel (311), the two belt wheels (311) are drivingly connected with a synchronous belt (312), and the one-way bearing is arranged on one belt wheel (311) and the output end of the motor (212).

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