Box body of inverter

Abstract

The utility model discloses a box body of an inverter, and relates to the technical field, the box body comprises a housing and a cover plate, positioning frames are fixed below one side of the cover plate and above the inner part of the housing, and positioning blocks are fixed above one side of the cover plate and below the inner part of the housing; one side of the cover plate is connected with two placing racks, and two inverter circuit boards are distributed between the two placing racks in a mirror image manner. According to the utility model, through the arrangement of the cover plate, the slide rail, the placement rack and the inverter circuit board, a traditional large inverter circuit board is divided into two parts which are arranged in a mirroring manner, so that the length and the width of the inverter circuit board are effectively reduced, the occupied area of the shell is reduced, and when maintenance is needed, bolts are taken down and the cover plate is disassembled according to the prior art; when the cover plate is disassembled, the placing rack and the inverter circuit board on the placing rack can be taken out, and then only connecting wire harnesses between the inverter circuit board and the display screen and between the inverter circuit board and the interface need to be disassembled. The occupied area is reduced; and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a box body of an inverter. Background Art

[0002] An inverter is a converter that converts DC power into constant frequency and constant voltage or frequency and voltage modulated AC power. Its main structure is composed of an inverter bridge, control logic, and filter circuit. In terms of appearance, it is a circuit board with various components installed, and then the circuit board is surrounded by a shell. The shell has structures such as a display screen and an interface.

[0003] The length and width of existing inverters depend on the length and width of the circuit board. The larger the power of the inverter, the larger the length and width of the circuit board, which results in a larger length and width of the inverter. Firstly, the horizontal footprint of the inverter is increased, and secondly, more bolts are required to fasten the circuit board, making disassembly and assembly more cumbersome. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a box body of an inverter to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a box body of an inverter, comprising an outer shell and a cover plate, positioning racks are fixed below one side of the cover plate and above the inside of the outer shell, and positioning blocks are fixed above one side of the cover plate and below the inside of the outer shell; two placement racks are connected to one side of the cover plate, and two inverter circuit boards are mirror-distributed between the two placement racks; a second magnet is fixed to one side of the placement rack, a guide rail and a slide groove are respectively provided on one side of the inner shell, and a baffle is connected to the inside of the slide groove, and a first magnet is fixed to one side of the baffle.

[0006] By adopting the above technical solution, a traditional large inverter circuit board is divided into two and mirrored. The length and width of the inverter circuit board are effectively reduced, thereby reducing the footprint of the housing. When maintenance is required, the bolts are removed and the cover is removed according to the existing technology. When the cover is removed, the placement rack and the inverter circuit board on the placement rack are taken out. After that, it is only necessary to disconnect the connecting wire harness between the inverter circuit board and the display screen and the interface, and then the inverter circuit board is pulled out from the placement rack, so that the inverter circuit board can be quickly disassembled for maintenance and replacement. Since the inverter circuit board is separated from the housing from the beginning, the inverter circuit board can be directly repaired on the placement rack without disassembly. When the placement rack is pulled out, the second magnet is connected to the first magnet. The irons attract each other, thereby driving the baffle to slide on the slide groove, and the inverter circuit board is pressed by the baffle to prevent the inverter circuit board from sliding off, and when the placement rack is fully pulled out, the baffle will be limited by the slide groove and will not be pulled out together with the placement rack; when the placement rack is installed, the placement rack will be pressed against the baffle, and the two will be attracted by the first magnet and the second magnet; if the installation direction of the placement rack is wrong, before the cover plate is fitted with the shell, the positioning block in the shell will press against the positioning block on the side of the cover plate, and the positioning frame in the shell will press against the positioning frame on the side of the cover plate, thereby preventing the cover plate from being installed in the wrong direction, and if the installation direction of the placement rack is correct, the positioning block in the shell will enter the positioning frame on the side of the cover plate, and the positioning block on the side of the cover plate will enter the positioning frame in the shell.

[0007] Furthermore, the inverter circuit board is detachably connected to the placement rack by sliding, and the placement rack is detachably connected to the guide rail by sliding.

[0008] By adopting the above technical solution, when maintenance is required, the bolts are removed and the cover is disassembled according to the existing technology. When the cover is removed, the placement rack and the inverter circuit board on the placement rack will be taken out. After that, it is only necessary to disconnect the connecting wire harness between the inverter circuit board and the display screen and the interface, and then pull the inverter circuit board out of the placement rack, thereby facilitating the quick disassembly of the inverter circuit board for maintenance and replacement.

[0009] Furthermore, the baffle is slidably connected to the slide groove, and the baffle abuts against the placement rack and the inverter circuit board.

[0010] By adopting the above technical solution, when the placement rack is pulled out, the second magnet is attracted to the first magnet, thereby driving the baffle to slide on the slide groove, and the baffle is used to support the inverter circuit board to prevent the inverter circuit board from sliding off. When the placement rack is fully pulled out, the baffle is limited by the slide groove and will not be pulled out together with the placement rack; when the placement rack is installed, the placement rack will be against the baffle, and the two will be attracted together through the first magnet and the second magnet.

[0011] Furthermore, the positioning block is adapted to the positioning frame.

[0012] By adopting the above technical solution, if the staff installs the placement rack in the wrong installation direction, the positioning block in the shell will press against the positioning block on the side of the cover before the cover is fitted on the shell, and the positioning rack in the shell will press against the positioning rack on the side of the cover, thereby avoiding the cover from being installed in the wrong installation direction. If the placement rack is installed in the correct direction, the positioning block in the shell will enter the positioning rack on the side of the cover, and the positioning block on the side of the cover will enter the positioning rack in the shell.

[0013] Furthermore, the cover is connected to one side of the housing, and bolts are connected to the top of the other side and the bottom of one side of the cover. A display screen and multiple interfaces are respectively installed on the other side of the cover.

[0014] By adopting the above technical solution, workers can connect the interface to external equipment through cables, so that the DC power in structures such as batteries can enter the inverter, and then the DC power is converted into AC power through the inverter circuit board and supplied to external equipment.

[0015] Furthermore, four supporting legs are fixed to the bottom of the shell, and the four supporting legs are distributed in a rectangular array.

[0016] By adopting the above technical solution, the outer shell is supported by four supporting legs, which reduces the contact area between the outer shell and the ground or table, thereby reducing the wear and tear on the outer shell and playing a certain moisture-proof role.

[0017] Furthermore, the cover plate is detachably connected to the housing via bolts.

[0018] By adopting the above technical solution, when maintenance is required, the staff first removes the bolts and disassembles the cover according to the existing technology. When the cover is removed, the placement rack and the inverter circuit board on the placement rack are taken out.

[0019] Furthermore, a fan and a diverter plate are respectively provided on the other side of the interior of the shell, an air inlet dustproof net is installed on the other side of the shell, and an air outlet dustproof net is installed on one side of the top and the bottom of the shell.

[0020] By adopting the above technical solution, while the inverter circuit board is working, the fan starts to generate airflow, and the airflow enters the housing through the air inlet dustproof net. At this time, the airflow is divided into two by the diverter plate to blow on the two inverter circuit boards, thereby removing the heat generated by the electronic components on the inverter circuit boards when they are working, achieving the purpose of heat dissipation. The hot air flow is then discharged from the air outlet dustproof net.

[0021] Furthermore, the cross-section of the diverter plate is triangular.

[0022] By adopting the above technical solution, the airflow is divided into two by the splitter plate to blow on the two inverter circuit boards, thereby taking away the heat generated by the electronic components on the inverter circuit boards during operation.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. The utility model divides a traditional large inverter circuit board into two and sets them in a mirrored manner by arranging a cover plate, a slide rail, a placement rack and an inverter circuit board, effectively reducing the length and width of the inverter circuit board, thereby reducing the floor space occupied by the housing. When maintenance is required, the bolts are removed and the cover plate is disassembled according to the existing technology. When the cover plate is removed, the placement rack and the inverter circuit board on the placement rack are taken out. After that, it is only necessary to disconnect the connecting wire harness between the inverter circuit board and the display screen and the interface, and then pull the inverter circuit board out of the placement rack, thereby facilitating quick removal of the inverter circuit board for maintenance and replacement. Moreover, since the inverter circuit board is separated from the housing from the beginning, it can be directly repaired on the placement rack without disassembly; thus reducing the floor space occupied and facilitating maintenance;

[0025] 2. The utility model provides the slide groove, the baffle, the first magnet, and the second magnet. When the placement rack is pulled out, the second magnet attracts the first magnet, thereby driving the baffle to slide on the slide groove, and the baffle abuts the inverter circuit board to prevent the inverter circuit board from sliding off. When the placement rack is fully pulled out, the baffle is limited by the slide groove and will not be pulled out together with the placement rack. When the placement rack is installed, the placement rack abuts against the baffle, and the first magnet and the second magnet attract the two together, thereby preventing the inverter circuit board from sliding off when the placement rack is pulled out.

[0026] 3. The present invention provides positioning blocks and positioning frames. If the installation direction of the placement frame is wrong, the positioning blocks in the shell will press against the positioning blocks on the side of the cover before the cover is fitted to the shell, and the positioning frames in the shell will press against the positioning frames on the side of the cover, thereby preventing the cover from being installed in the wrong direction. If the installation direction of the placement frame is correct, the positioning blocks in the shell will enter the positioning frames on the side of the cover, and the positioning blocks on the side of the cover will enter the positioning frames in the shell; the fool-proof design prevents incorrect installation direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the side structure of the shell of the utility model;

[0030] Figure 4 This is a schematic diagram of the side structure of the cover plate of the present invention.

[0031] In the figure: 1. Housing; 2. Support feet; 3. Cover; 4. Bolts; 5. Display screen; 6. Interface; 7. Exhaust dust screen; 8. Inlet dust screen; 9. Fan; 10. Diverter plate; 11. Guide rail; 12. Slide; 13. Baffle; 14. First magnet; 15. Positioning block; 16. Positioning frame; 17. Placement frame; 18. Second magnet; 19. Inverter circuit board. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] The following describes an embodiment of the present invention based on its overall structure. Example 1

[0034] An inverter box, such as Figure 2-Figure 4 As shown, it includes a shell 1 and a cover plate 3, a positioning frame 16 is fixed to the lower side of the cover plate 3 and the upper part of the shell 1, a positioning block 15 is fixed to the upper side of the cover plate 3 and the lower part of the shell 1, and the positioning block 15 is adapted to the positioning frame 16. If the staff installs the placement frame 17 in the wrong installation direction, the cover plate 3 will be attached to the shell 1 before the shell 1 is fitted, and the positioning block 15 in the shell 1 will press against the positioning block 15 on the side of the cover plate 3, and the positioning frame 16 in the shell 1 will press against the positioning frame 16 on the side of the cover plate 3, thereby avoiding the cover plate 3 from being installed in the wrong installation direction. If the installation direction of the placement frame 17 is correct, the positioning block 15 in the shell 1 will enter the positioning frame 16 on the side of the cover plate 3, and the positioning block 15 on the side of the cover plate 3 will enter the positioning frame 16 in the shell 1;

[0035] Two mounting racks 17 are connected to one side of the cover 3. Two inverter circuit boards 19 are mirror-imaged between the two mounting racks 17. This effectively reduces the length and width of the inverter circuit board 19 by splitting a conventional large inverter circuit board 19 into two and mirroring them, thereby reducing the footprint of the housing 1.

[0036] A second magnet 18 is fixed to one side of the placement rack 17, and a guide rail 11 and a slide groove 12 are respectively provided on one side of the interior of the shell 1. A baffle 13 is connected to the interior of the slide groove 12, and the baffle 13 is slidably connected to the slide groove 12. The baffle 13 abuts against the placement rack 17 and the inverter circuit board 19. A first magnet 14 is fixed to one side of the baffle 13. When the placement rack 17 is pulled out, the second magnet 18 and the first magnet 14 are attracted to each other, thereby driving the baffle 13 to slide on the slide groove 12, and the baffle 13 abuts against the inverter circuit board 19 to prevent the inverter circuit board 19 from slipping. When the placement rack 17 is fully pulled out, the baffle 13 will be limited by the slide groove 12 and will not be pulled out together with the placement rack 17.

[0037] See Figure 1-Figure 3 In the above embodiment, the cover plate 3 is connected to one side of the housing 1, and bolts 4 are connected to the upper side of the other side and the lower side of one side of the cover plate 3. The cover plate 3 is detachably connected to the housing 1 through the bolts 4. A display screen 5 and multiple interfaces 6 are respectively installed on the other side of the cover plate 3. The staff can connect the interfaces 6 to external devices through cables, so that the DC power in the battery and other structures enters the inverter, and then the DC power is converted into AC power through the inverter circuit board 19 and supplied to the external equipment; four supporting feet 2 are fixed to the bottom of the housing 1, and the four supporting feet 2 are distributed in a rectangular array, which is convenient for placing the inverter and reducing wear between the bottom of the housing 1 and the ground or table. Example 2

[0038] On the basis of the above-mentioned embodiment 1, in order to prevent the components on the inverter circuit board 19 from being overheated during operation, the following settings are now adopted.

[0039] See Figure 1-Figure 3 In the above embodiment, a fan 9 and a diverter plate 10 are respectively provided on the other side of the interior of the housing 1. The cross-section of the diverter plate 10 is triangular. An air inlet dustproof net 8 is installed on the other side of the housing 1. An air outlet dustproof net 7 is installed on the top and bottom sides of the housing 1. The fan 9 is started to generate airflow, and the airflow enters the housing 1 through the air inlet dustproof net 8. At this time, the airflow is divided into two by the diverter plate 10 to blow on the two inverter circuit boards 19, thereby taking away the heat generated by the electronic components on the inverter circuit boards 19 when they are working, achieving the purpose of heat dissipation. After that, the hot airflow is discharged from the air outlet dustproof net 7.

[0040] The implementation principle of the present utility model is as follows: first, the staff can connect the interface 6 to the external equipment through a cable, so that the DC power in the structure such as the battery enters the inverter, and then the DC power is converted into AC power through the inverter circuit board 19 and supplied to the external equipment. In addition, the present technical solution divides the traditional large inverter circuit board 19 into two and sets them in a mirror image, effectively reducing the length and width of the inverter circuit board 19, thereby reducing the footprint of the housing 1. While the inverter circuit board 19 is working, the fan 9 starts to generate airflow, and the airflow enters the housing 1 through the air inlet dustproof net 8. At this time, the airflow is divided into two by the diverter plate 10 to blow the two inverter circuit boards 19, thereby taking away the heat generated by the electronic components on the inverter circuit board 19 when working, achieving the purpose of heat dissipation, and then the hot air flow is discharged from the air outlet dustproof net 7;

[0041] When maintenance is required, the staff first removes the bolts 4 and disassembles the cover plate 3 according to the existing technology. When the cover plate 3 is removed, the placement rack 17 and the inverter circuit board 19 on the placement rack 17 are taken out. When the placement rack 17 is pulled out, the second magnet 18 and the first magnet 14 are attracted to each other, thereby driving the baffle 13 to slide on the slide 12. The baffle 13 presses against the inverter circuit board 19 to prevent the inverter circuit board 19 from sliding off. When the placement rack 17 is fully pulled out, the baffle 13 is limited by the slide 12 and will not be pulled out together with the placement rack 17.

[0042] After that, the staff only needs to disconnect the connection harness between the inverter circuit board 19 and the display screen 5 and the interface 6, and then pull the inverter circuit board 19 out of the placement rack 17, so as to facilitate the quick removal of the inverter circuit board 19 for inspection and replacement. Moreover, since the inverter circuit board 19 is separated from the housing 1 at the beginning, the staff can also inspect the inverter circuit board 19 directly on the placement rack 17 without disassembly.

[0043] The staff puts the inverter circuit board 19 horizontally back into the placement rack 17, installs it, and then puts the placement rack 17 into the guide rail 11 and pushes it back into the housing 1. At the same time, the placement rack 17 will abut against the baffle 13, and the first magnet 14 and the second magnet 18 will attract the two together.

[0044] If the staff installs the placement rack 17 in the wrong installation direction, before the cover 3 is fitted on the shell 1, the positioning block 15 in the shell 1 will press against the positioning block 15 on the side of the cover 3, and the positioning rack 16 in the shell 1 will press against the positioning rack 16 on the side of the cover 3, thereby preventing the cover 3 from being installed in the wrong installation direction. If the placement rack 17 is installed in the correct direction, the positioning block 15 in the shell 1 will enter the positioning rack 16 on the side of the cover 3, and the positioning block 15 on the side of the cover 3 will enter the positioning rack 16 in the shell 1.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An inverter box, comprising a housing (1) and a cover (3), characterized in that: A positioning frame (16) is fixed below one side of the cover plate (3) and above the interior of the housing (1), and a positioning block (15) is fixed above one side of the cover plate (3) and below the interior of the housing (1); two placement frames (17) are connected to one side of the cover plate (3), and two inverter circuit boards (19) are mirror-distributed between the two placement frames (17); a second magnet (18) is fixed to one side of the placement frame (17), a guide rail (11) and a slide groove (12) are respectively provided on one side of the interior of the housing (1), and a baffle (13) is connected inside the slide groove (12), and a first magnet (14) is fixed to one side of the baffle (13).

2. The inverter housing according to claim 1, characterized in that: The inverter circuit board (19) is detachably connected to the placement rack (17) by sliding, and the placement rack (17) is detachably connected to the guide rail (11) by sliding.

3. The inverter housing according to claim 2, characterized in that: The baffle (13) is slidably connected to the slide groove (12), and the baffle (13) abuts against the placement rack (17) and the inverter circuit board (19).

4. The inverter housing according to claim 1, characterized in that: The positioning block (15) is adapted to the positioning frame (16).

5. The inverter housing according to claim 1, characterized in that: The cover plate (3) is connected to one side of the housing (1), and bolts (4) are connected to the upper side of the other side and the lower side of one side of the cover plate (3). A display screen (5) and a plurality of interfaces (6) are respectively installed on the other side of the cover plate (3).

6. The inverter box according to claim 5, characterized in that: Four supporting feet (2) are respectively fixed to the bottom of the housing (1), and the four supporting feet (2) are distributed in a rectangular array.

7. The inverter housing according to claim 5, characterized in that: The cover plate (3) is detachably connected to the housing (1) via bolts (4).

8. The inverter housing according to claim 1, characterized in that: A fan (9) and a diverter plate (10) are provided on the other side of the interior of the housing (1), an air inlet dust screen (8) is installed on the other side of the housing (1), and an air outlet dust screen (7) is installed on both the top side and the bottom side of the housing (1).

9. The inverter box according to claim 8, characterized in that: The cross section of the diverter plate (10) is triangular.

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