Inverter

Abstract

The utility model relates to an inverter which comprises the components of a housing which defines an accommodating cavity at the inner side and is provided with an opening which is communicated with the accommodating cavity; a first waterproof electric connection structure is arranged in the shell; the heat dissipation assembly comprises a support and at least one radiator arranged on the support, the support and the opening are arranged in a relative movement mode, and the support is installed in the containing cavity from the opening when moving in the first direction; the support retreats from the containing cavity to the opening when moving in the second direction. Each radiator is connected with a second waterproof electric connection structure, and the second waterproof electric connection structures are detachably connected with the first waterproof electric connection structures. According to the inverter, the opening is formed in the machine shell, the radiator and the opening of the machine shell are arranged in a relative movement mode, and the first waterproof electric connection structure and the second waterproof electric connection structure are detachably connected, so that overhaul, maintenance and replacement of the heat dissipation assembly are facilitated, machine faults are reduced, and the waterproof performance of a machine is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power conversion, especially to inverter. BACKGROUND

[0002] The high-power industrial and commercial energy storage inverter is generally forced air-cooled. A radiator (such as a fan) is used to form air convection to take away the heat emitted by the power device to the inverter, so as to achieve the purpose of heat dissipation. The inverter can generate electricity efficiently and reliably, and whether the radiator can normally exhaust air is particularly crucial. The radiator failure is mainly caused by two aspects: 1. aging of its own parts, bearing wear, and performance decline of lubricating grease; 2. environmental factors, such as sunshine, rain, dust, or high temperature. Therefore, to avoid the failure of the radiator weakening the heat dissipation capacity of the machine, the radiator needs to be regularly maintained and replaced.

[0003] At present, the general operation of the radiator maintenance and disassembly process is as follows: 1. The inverter is removed from the wall to the workbench; 2. The inverter internal radiator plug is pulled out by opening the inverter upper shell, and the radiator plug binding wire tie is removed; 3. The inverter bottom cover is removed; 4. The radiator support is removed; 5. The radiator waterproof joint is loosened, and the radiator wire and plug are pulled out; 6. The radiator is removed from the support and cleaned, maintained or replaced; 7. The above steps are reversed in sequence to finally be hung on the wall for use.

[0004] The main problems of the above operation are three aspects: 1. It is relatively complicated and does not consider the quickness of on-site disassembly, causing waste of manpower and material resources; 2. Due to the disassembly of the machine, the risk of machine failure is increased. 3. The disassembly of the upper shell and the radiator plug will weaken the waterproof ability of the radiator. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide an improved inverter.

[0006] The technical scheme adopted by the utility model to solve the technical problem is: an inverter is constructed, which comprises:

[0007] A shell defines a containing cavity on the inner side, and an opening communicating with the containing cavity is arranged on the shell; a first waterproof electrical connection structure is arranged in the shell;

[0008] A heat dissipation assembly comprises a support and at least one radiator arranged on the support, the support is movably arranged opposite to the opening, and the support is installed into the containing cavity from the opening when moving in a first direction; the support exits from the containing cavity to the opening when moving in a second direction; each radiator is connected with a second waterproof electrical connection structure, and the second waterproof electrical connection structure is detachably connected with the first waterproof electrical connection structure.

[0009] In some embodiments, the housing comprises a mounting plate fixedly connected with the external mounting area, and a first side plate arranged on one side of the mounting plate;

[0010] The opening is arranged on the first side plate;

[0011] The bracket is arranged to move along a direction parallel to the mounting plate.

[0012] In some embodiments, the housing is arranged with a guide structure for the bracket to move;

[0013] The guide structure comprises two guide grooves arranged on opposite sides of the opening, and the two guide grooves are arranged to be spaced apart along a direction perpendicular to the mounting plate;

[0014] The bracket is arranged with a sliding block on each of the two opposite sides, and the sliding block on each side of the bracket is clamped into and arranged to slide in the corresponding guide groove.

[0015] In some embodiments, the slot of each guide groove towards one end of the opening is arranged to be expanded towards the opening.

[0016] In some embodiments, the guide groove and the bracket are arranged with a positioning structure.

[0017] In some embodiments, the positioning structure comprises a first positioning column and a first positioning groove;

[0018] The first positioning column is arranged at one end of the guide groove away from the opening;

[0019] The bracket comprises a carrier plate and a guard plate arranged on opposite sides of the carrier plate; the first positioning groove is arranged at one end of the guard plate and is arranged correspondingly with the first positioning column.

[0020] In some embodiments, the housing further comprises a cover plate covering the opening.

[0021] In some embodiments, the first waterproof electrical connection structure comprises a first waterproof plug;

[0022] The second waterproof electrical connection structure comprises a second waterproof plug that is plugged correspondingly with the first waterproof plug.

[0023] In some embodiments, the inverter further comprises a fixing structure mounted in the housing to fix the first waterproof electrical connection structure.

[0024] In some embodiments, the fixing structure is a waterproof fixing structure;

[0025] The first waterproof electrical connection structure further comprises a first wire;

[0026] The fixing structure is provided with a wire passing hole for the first wire to pass through.

[0027] The inverter has the following beneficial effects: the inverter is provided with an opening on the shell, and the heat sink is arranged opposite to the opening of the shell, so that the heat sink support can be moved along a first direction to be installed into the accommodating cavity from the opening of the shell, and the heat sink support can be moved along a second direction to exit from the accommodating cavity to the opening, and the first waterproof electric connection structure is arranged in the shell and the second waterproof electric connection structure is connected on the heat sink, and the first waterproof electric connection structure and the second waterproof electric connection structure are detachably connected, so that the maintenance, repair and replacement of the heat dissipation assembly are facilitated, machine failures are reduced, and the waterproof performance of the machine is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further described below in combination with the drawings and examples, and the drawings are as follows:

[0029] Figure 1 is a partial structure schematic view of the inverter in some examples of the utility model;

[0030] Figure 2 is Figure 1 a partial structure exploded schematic view of the inverter shown in the figure;

[0031] Figure 3 is Figure 1 a shell structure schematic view of the inverter shown in the figure;

[0032] Figure 4 is Figure 1 another partial structure schematic view of the inverter shown in the figure. DETAILED DESCRIPTION

[0033] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be described in detail with reference to the drawings. In the following description, it should be understood that the orientation or position relationship indicated by "upper", "horizontal", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is constructed and operated in a specific orientation, and is only for the convenience of describing the technical scheme, and does not indicate that the indicated device or element must have a specific orientation, so it cannot be understood as a limitation on the utility model.

[0034] It should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing", "arranging" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" above the other element, or one or more intervening elements can be present. The terms "first", "second", etc. are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second", etc. can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Figures 1 to 2 Some preferred embodiments of the inverter of the present application are shown. The inverter can be used for power conversion, and the inverter has the advantages of easy maintenance, maintenance, maintenance and replacement, and high machine stability and strong waterproof performance.

[0036] In some embodiments, the inverter can include a housing 10 and a heat dissipation assembly 20. The housing 10 can be used for mounting the heat dissipation assembly 20 and other devices. The heat dissipation assembly 20 can be movably arranged in the housing 10 for dissipating heat of power devices in the housing 10, so that the inverter can operate normally and efficiently.

[0037] In some embodiments, the housing 10 can be made of aluminum alloy material. The housing 10 can select an aluminum alloy plate with a wall thickness of 2.0 mm, which can not only meet the structural strength, but also reduce the weight, because the aluminum alloy is lighter than the sheet metal. It can be understood that in other embodiments, the housing 10 can not be limited to aluminum alloy material, but can use conventional sheet metal or other materials lighter than sheet metal.

[0038] In some embodiments, the housing 10 includes a first housing 10a and a second housing 10b, and the first housing 10a and the second housing 10b are both cuboid-shaped and frame structure. The first housing 10a and the second housing 10b can be spliced to form a cuboid structure. In some embodiments, the first housing 10a and the second housing 10b can also be integrally formed. In other embodiments, the housing 10 can not be limited to be cuboid-shaped, and in some embodiments, the housing 10 can be cylindrical, square or other shapes.

[0039] As Figure 2 andFigure 3 As shown, in some embodiments, a receiving cavity 10c can be defined in the casing 10, which can be formed in the first casing 10a and the second casing 10b. The receiving cavity 10c can include a first cavity formed in the first casing 10a and a second cavity formed in the second casing 10b. The receiving cavity 10c can be used to receive the heat dissipation assembly 20 and other devices. In some embodiments, the receiving cavity 10c can not be limited to including the first cavity and the second cavity, i.e., it can not be formed by combining two cavities, but it can also be one cavity.

[0040] In some embodiments, a partition 11 can be provided between the first casing 10a and the second casing 10b, which can be used to separate the receiving cavity 10c into the first cavity and the second cavity. The partition 11 can be connected and fixed with the first casing 10a and the second casing 10b.

[0041] In some embodiments, the casing 10 can include a mounting plate (not shown) provided on the side of the first casing 10a opposite to the second casing 10b, which can be connected and fixed with the first casing 10a. Generally, the mounting plate (not shown) can be connected and fixed with the first casing 10a by providing a screw assembly. The mounting plate (not shown) can be used to be connected and fixed with an external mounting area, so that the inverter as a whole can be mounted in the mounting area. For example, the mounting plate (not shown) can be connected and fixed with a wall, which can be mounted on the wall by screws or hung on the wall by providing hanging ears or holes, so that the inverter can be mounted on the wall.

[0042] In some embodiments, the casing 10 can include a first side plate 12 and a second side plate 13, which are oppositely arranged and formed on two opposite sides of the second casing 10b. The first side plate 12 can be provided on one side of the mounting plate (not shown), and the second side plate 13 can be provided on the other side of the mounting plate (not shown). The receiving cavity 10c is at least partially formed between the first side plate 12 and the second side plate 13.

[0043] In some embodiments, the casing 10 is provided with an opening 121 communicating with the receiving cavity 10c, specifically, the opening 121 is provided on the first side plate 12, i.e., the opening 121 is located on one side of the mounting plate (not shown), so that the heat dissipation assembly 20 can be inspected, maintained, replaced, etc. through the opening 121 without the need to remove the inverter as a whole from the wall. In some embodiments, the opening 121 can be substantially square. Of course, it can be understood that in other embodiments, the opening 121 can not be limited to being square, but can also be rectangular or other shapes.

[0044] In some embodiments, the edge of the opening 121 is provided with an extension 122, and two extensions 122 are located at two opposite sides of the opening 121 and extend towards the opposite arrangement direction. The extension 122 can be used for the installation of the cover 17. The extension 122 can be provided with a mounting hole 1221, which can be used for screw installation.

[0045] In some embodiments, a frame plate 14 is arranged between the first side plate 12 and the second side plate 13, and the frame plate 14 can be connected and fixed with the first side plate 12 and the second side plate 13. The frame plate 14 can be arranged in parallel and spaced apart with the partition plate 11. In some embodiments, the frame plate 14 can include a cross beam 141, and the two ends of the cross beam 141 can extend towards the first side plate 12 and the second side plate 13, respectively.

[0046] In some embodiments, the casing 10 is provided with a guide structure 15, which can be used for the movement guide of the heat dissipation assembly 20. In some embodiments, the guide structure 15 can be arranged on the partition plate 11 and the frame plate 14. In some embodiments, the guide structure 15 can include two groups of guide rails 151, one group of which is arranged on the side of the partition plate 11 opposite to the frame plate 14, and the other group of which is arranged on the side of the frame plate 14 opposite to the partition plate 11. Each group of guide rails 151 includes two guide rails 151 arranged in parallel. Each guide rail 151 is longitudinally arranged and can extend towards the opening 121 in a direction parallel to the mounting plate (not shown). In some embodiments, the guide structure 15 further includes two guide grooves 152, which are arranged in parallel to the mounting plate (not shown) and are arranged at two opposite sides of the opening 121. In some embodiments, each guide groove 152 can be formed between two guide rails 151 in each group of guide rails 151, and the space between the two guide rails 151 in each group can form a guide groove 152. In some embodiments, the slot of the guide groove 152 at the end towards the opening 121 is arranged to be expanded towards the opening 121, that is, the slot of the guide groove 152 at the end towards the opening 121 can be a trumpet slot, which can facilitate the blind insertion of the heat dissipation assembly 20. Generally, the slot of the guide groove 152 can be arranged to be expanded by folding the section of the guide rail 151 close to the opening 121 outward.

[0047] In some embodiments, the casing 10 further includes a cover plate 17, which can be detachably arranged with the first side plate 12 and can cover the opening 121. Specifically, the cover plate 17 can be connected and fixed with the extension 122 through a screw assembly. For example, the cover plate 17 can be provided with a through hole 171, which can be arranged in one-to-one correspondence with the mounting hole 1221 on the extension 122. The screw can pass through the mounting hole 1221 and penetrate into the through hole 171, thereby detachably connecting the cover plate 17 with the first side plate 12, so as to facilitate the disassembly and assembly of the cover plate 17.

[0048] In some other embodiments, the cover plate 17 may not be limited to being detachably connected to the first side plate 12 via a screw assembly. In some embodiments, one side of the cover plate 17 may be rotatably connected to the first side plate 12 via a hinge structure, and the cover plate 17 may be fixedly connected to the first side plate 12 via a snap-fit ​​structure. In some embodiments, the cover plate 17 may also be locked and fixed to the first side plate 12 via a locking structure. In some other embodiments, the cover plate 17 may be omitted.

[0049] In some embodiments, a first waterproof electrical connection structure 18 is provided in the housing 10. This first waterproof electrical connection structure 18 can be used to connect with the heat dissipation assembly 20 and form an electrical connection. The first waterproof electrical connection structure 18 may include a first waterproof connector 181 and a first wire 182 connected to the first waterproof connector 181. The first waterproof connector 181 is disposed at one end of the first wire 182 and is used for plugging into the heat dissipation assembly 20. The end of the first wire 182 away from the first waterproof connector 181 can be connected to a power source. In some embodiments, the first waterproof connector 181 may be designed with a waterproof material, such as waterproof plastic, and its interface for plugging may have a waterproof structure, such as waterproof silicone.

[0050] like Figure 2 and Figure 4 As shown, in some embodiments, the heat dissipation assembly 20 may include a bracket 21 and at least one heat sink 22 disposed on the bracket 21, the bracket 21 being used to support the heat sink 22. There may be multiple heat sinks 22, not limited to one, and multiple heat sinks 22 may be disposed at intervals on the bracket 21.

[0051] In some embodiments, the bracket 21 can be movable relative to the opening 121, that is, it can be moved parallel to the mounting plate (not shown). When the bracket 21 moves in a first direction, it can be installed from the opening 121 into the receiving cavity 10c, that is, the direction in which the bracket 21 moves from the opening 121 towards the second side plate 13. When the bracket 21 moves in a second direction, it can be retracted from the receiving cavity 10c into the opening 121, that is, the bracket 21 can move from the second side plate 13 into the opening 121 until the bracket 21 is exposed from the opening 121. By arranging the bracket 21 relative to the opening 121, it is easier to remove the heat dissipation assembly 20 from the housing 10 and install the heat dissipation assembly 20 into the housing 10, thereby facilitating the inspection, maintenance, repair, and replacement of the heat sink 22. The bracket 21 can be pulled out.

[0052] Of course, in other embodiments, the bracket 21 may also be moved by a drive mechanism, which may include a motor and a transmission assembly, such as a gear structure. The transmission assembly may be connected to the bracket 21 to drive the bracket 21 to move under the drive of the motor. A button for operating the motor may be provided on the housing 10.

[0053] In some embodiments, the bracket 21 can include a carrier plate 211 and two guard plates 212. The carrier plate 211 can be longitudinally arranged and can extend between the first side plate 12 and the second side plate 13, and can be used to carry the heat sink 22. The two guard plates 212 can be arranged on two opposite sides of the carrier plate 211 and can be arranged perpendicularly to the carrier plate 211. The two guard plates 212 can be longitudinally arranged.

[0054] In some embodiments, an end of the carrier plate 211 towards the outside of the casing 10 can be provided with a handle to facilitate the user to pull out the bracket 21. The handle can be integrally formed with the carrier plate 211. Generally, the handle can be formed by folding a section of the carrier plate 211.

[0055] In some embodiments, the width of the guard plate 212 can be less than or substantially equal to the width of the guide slot 152, so that the guard plate 212 can be arranged to slide in the guide slot 152.

[0056] In some embodiments, the bracket 21 can be guided to move by the guide structure 15. The two opposite sides of the bracket 21 can be provided with a sliding block 2121, which can be arranged to protrude from the outside of the guard plate 212. The sliding block 2121 on each side of the bracket 21 can be arranged to be engaged in and slide in the corresponding guide slot 152, and can be arranged to be disengaged from the notch arranged at the opening 121. In some embodiments, the sliding block 2121 on each side of the bracket 21 can be multiple, and the multiple sliding blocks 2121 can be arranged to be spaced apart along the length direction of the bracket 21.

[0057] In some embodiments, the bracket 21 and the wire slot 152 can be provided with a positioning structure, which can be used for positioning and mounting the bracket 21, so as to prevent the overall loosening of the bracket 21 after the heat dissipation assembly 20 is mounted in the casing 10. In some embodiments, the positioning structure can be two sets, and the two sets of positioning structures can be arranged one-to-one corresponding to the two guard plates and the two guide slots. In some embodiments, the positioning structure can include a first positioning column 16 and a first positioning slot 2122. The first positioning column 16 can be arranged at an end of the guide slot 152 away from the opening 121, and can be located on the center line of the guide slot 152 and protrude from the partition plate 11 or the frame plate 14. The first positioning slot 2122 can be arranged at an end of the guard plate 212, which can be located at an end of the guard plate 212 away from the handle, and can be arranged corresponding to the first positioning column 16. Generally, the first positioning slot 2122 can be formed by opening a gap in the guard plate 212. When the heat dissipation assembly 20 is pushed into the accommodating cavity 10c from the opening 121, the first positioning slot 2122 can be engaged with the first positioning column 16, so as to fix the bracket 21 to the casing 10.

[0058] In some embodiments, the heat dissipating device 22 can be a heat dissipating fan, and each heat dissipating device 22 can be connected with a second waterproof electrical connection structure 23 which can be detachably connected with the first waterproof electrical connection structure 18. In some embodiments, the second waterproof electrical connection structure 23 can include a second waterproof plug and a second wire. The second waterproof plug can be arranged at one end of the second wire and used for plugging with the first waterproof plug 181. The end of the second wire away from the second waterproof plug can be connected with the heat dissipating device 22. In some embodiments, the second waterproof plug can be made of waterproof material, such as waterproof plastic, and waterproof structure, such as waterproof silica gel, can be arranged at the plug opening of the second waterproof plug, so as to play a waterproof role after being connected with the first waterproof plug 181.

[0059] Specifically, when the heat dissipating assembly 20 is installed in the cabinet 10, when the heat dissipating assembly 20 is moved to be partially located in the accommodating cavity 10c and partially located outside the opening 121, the first waterproof plug 181 of the first waterproof electrical connection structure 18 can be plugged with the second waterproof plug of the second waterproof electrical connection structure 23 to realize electrical connection of the two. When the heat dissipating assembly 20 needs to be taken out of the cabinet 10, the cover plate 17 can be removed, the opening 121 is opened, then the first waterproof plug 181 of the first waterproof electrical connection structure 18 is unplugged with the second waterproof plug of the second waterproof electrical connection structure 23, and then the bracket 21 is pulled out of the opening 121.

[0060] In some embodiments, the inverter further includes a fixing structure 30 which is installed in the cabinet 10 and can be used for fixing the first waterproof electrical connection structure 18. In some embodiments, the fixing structure 30 can be a waterproof fixing structure which can be made of waterproof material, and the waterproof material can be conventional waterproof silica gel. The fixing structure 30 can be generally columnar, can be fixed on the partition plate 11 and arranged close to the opening 121. The fixing structure 30 can be provided with wire passing holes 31 which can be a plurality of wire passing holes 31 which can be arranged at intervals and can be arranged in one-to-one correspondence with the plurality of heat dissipating devices 22. The wire passing holes 31 can be used for the first wire 182 of the first waterproof electrical connection structure 18 to pass out.

[0061] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. An inverter, characterized by comprising: The application relates to an inverter, which comprises a shell (10) defining an accommodating cavity (10c) inside, an opening (121) provided on the shell (10) and communicating with the accommodating cavity (10c), and a first waterproof electric connection structure (18) provided in the shell (10); a heat dissipation assembly (20) comprising a support (21) and at least one heat radiator (22) provided on the support (21), wherein the support (21) is movably arranged opposite to the opening (121), the support (21) is installed into the accommodating cavity (10c) from the opening (121) when moving in a first direction, the support (21) is withdrawn from the accommodating cavity (10c) to the opening (121) when moving in a second direction, and each heat radiator (22) is connected with a second waterproof electric connection structure (23) which is detachably connected with the first waterproof electric connection structure (18). The shell (10) comprises a mounting plate fixedly connected with an external mounting area and a first side plate (12) provided on one side of the mounting plate. The opening (121) is provided on the first side plate (12).

2. The inverter of claim 1, wherein, The support (21) is movably arranged in a direction parallel to the mounting plate. The shell (10) is provided with a guide structure (15) for the movement of the support (21). The guide structure (15) comprises two guide grooves (152) provided on two opposite sides of the opening (121), and the two guide grooves (152) are spaced apart in a direction perpendicular to the mounting plate.

3. The inverter of claim 2, wherein, The support (21) is provided with a sliding block (2121) on each of the two opposite sides, and the sliding block (2121) on each side of the support (21) is clamped into and slides in the corresponding guide groove (152). The opening (121) is provided on the first side plate (12). The guide groove (152) and the support (21) are provided with a positioning structure.

4. The inverter of claim 3, wherein, The positioning structure comprises a first positioning column (16) and a first positioning groove (2122).

5. The inverter of claim 3, wherein, The first positioning column (16) is provided on one end of the guide groove (152) away from the opening (121).

6. The inverter of claim 5, wherein, The support (21) comprises a carrier plate (211) and a guard plate (212) provided on the two opposite sides of the carrier plate (211), the first positioning groove (2122) is provided on one end of the guard plate (212) and is correspondingly arranged with the first positioning column (16). The shell (10) further comprises a cover plate (17) covering the opening (121). The first waterproof electric connection structure (18) comprises a first waterproof plug (181).

7. The inverter of claim 1, wherein, The second waterproof electric connection structure (23) comprises a second waterproof plug which is plugged with the first waterproof plug (181).

8. The inverter of claim 1, wherein, The inverter further comprises a fixing structure (30) installed in the shell (10) to fix the first waterproof electric connection structure (18). The fixing structure (30) is a waterproof fixing structure (30).

9. The inverter of claim 1, wherein, ​ 10. The inverter of claim 9, wherein, ​ The first waterproof electric connection structure (18) further comprises a first wire (182); The fixing structure (30) is provided with a wire passing hole (31) for the first wire (182) to pass through.

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