Assembly fixing structure of micro inverter for photovoltaic circuit

Abstract

The utility model relates to the field of fixing structures, in particular to an assembly fixing structure of a micro inverter for a photovoltaic circuit, which comprises a mounting plate. A transmission part used for mirror image synchronous transmission is arranged on the side face of the mounting plate and comprises a sliding part. A first sliding plate is arranged on the top of the mounting plate and slidably connected with a sliding part, a rotating support is arranged on the sliding part, a bidirectional lead screw is rotatably arranged on the rotating support, two sets of threaded parts are arranged on the bidirectional lead screw in a threaded mode, clamping connecting parts are arranged on the threaded parts, and clamping positioning parts are arranged on the side faces of the clamping connecting parts. According to the device, the micro inverter assembly is clamped and fixed in a sliding clamping mode, and it can be ensured that the device can adapt to the micro inverter assemblies of different models and sizes through the clamping and positioning piece which slides in a mirror image mode; therefore, a compatible clamping and fixing effect of various micro inverter assemblies of the device is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing structures, in particular to a component fixing structure of a micro inverter for a photovoltaic circuit. Background Art

[0002] An inverter converts DC power (from batteries or storage batteries) into constant-frequency, constant-voltage, or frequency-modulated, voltage-regulated AC power (typically 220V, 50Hz sinusoidal). It consists of an inverter bridge, control logic, and filtering circuits. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, VCRs, massagers, fans, and lighting.

[0003] A Chinese patent with publication number CN215106699U discloses a micro-inverter installation structure for an ultra-wide color steel tile factory roof, comprising a roof truss upper chord, with a plurality of mutually parallel trough-shaped slats vertically laid above the roof truss upper chord, and color steel tiles laid on the side of the trough-shaped slats away from the roof truss upper chord. A plurality of photovoltaic modules are laid on the color steel tile roof, and a plurality of upper micro-inverters are arranged along the length of the ridge of the color steel tile, and a ridge cover is detachably fixedly connected above the upper micro-inverter. A plurality of lower micro-inverters are arranged along the length of the eaves on both sides of the color steel tile, and the upper micro-inverters and lower micro-inverters are respectively connected to the photovoltaic modules. By arranging the upper micro-inverters and lower micro-inverters at the ridge and eaves of the color steel tile, the module laying area is increased, the length of the connection line between the photovoltaic module and the inverter is reduced, and the line loss is reduced, thereby saving production costs.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: there are many types of micro-inverters on the market and the installation limit docking positions are different. In actual use, it is often necessary to use the corresponding connection and installation structure to install and fix the micro-inverter assembly, which increases the difficulty of actual installation. At the same time, the use of the specific installation and fixing structure is often not convenient for maintenance in the later stage. When the micro-inverter assembly needs to be replaced, the corresponding installation and fixing structure needs to be replaced. Utility Model Content

[0005] The purpose of the present utility model is to provide a component fixing structure for a micro inverter for a photovoltaic circuit, so as to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the device clamps and fixes the micro-inverter assembly by sliding clamping, and the mirror-sliding clamping positioning parts can ensure that the device can adapt to micro-inverter assemblies of different models and sizes, thereby achieving the compatible clamping and fixing effect of various micro-inverter assemblies of the device.

[0007] The utility model proposes a component fixing structure for a micro inverter for a photovoltaic circuit, comprising a mounting plate; a transmission component for mirror synchronous transmission is provided on the side of the mounting plate, and the transmission component comprises a sliding member;

[0008] A first sliding plate is provided on the top of the mounting plate, and the first sliding plate is slidably connected to the sliding member. A rotating bracket is provided on the sliding member, and a bidirectional screw is rotatably provided on the rotating bracket. Two groups of threaded members are threaded on the bidirectional screw, and a clamping connector is provided on the threaded member. A clamping positioning member is provided on the side of the clamping connector for clamping and fixing the micro inverter assembly.

[0009] Preferably, it also includes an air inlet window; the air inlet window is arranged on the side of the mounting plate, a fan is arranged to rotate inside the air inlet window, a ventilation pipe is provided inside the mounting plate, one end of the ventilation pipe is connected to the air inlet window, and an air outlet is provided on the other end of the ventilation pipe, and the air outlet is arranged on the sliding plate for air cooling and heat dissipation of the micro inverter assembly.

[0010] Preferably, a connecting piece is provided on the mounting plate, a connecting bracket is provided on the connecting piece, and a fixing threaded hole is provided on the connecting bracket.

[0011] Preferably, a telescopic rod is provided on the mounting plate, a driving component is provided on the telescopic rod, the driving component includes a connecting rod, the connecting rod is connected to the telescopic rod, a rotating connecting piece is rotatably provided on the connecting rod, a rotating connecting rod is provided on the rotating connecting piece, and a sliding limiter is provided on the rotating connecting rod.

[0012] Preferably, a rotating shaft is rotatably provided on the mounting plate, a second sliding plate is provided on the rotating shaft, the side of the second sliding plate is slidably connected to the sliding limiter, a waist-shaped hole is provided inside the second sliding plate, the diameter of the sliding limiter is larger than the width of the waist-shaped hole, a sliding shaft is provided on the sliding limiter, the sliding shaft is slidably connected to the inner wall of the waist-shaped hole, and multiple groups of sliding limiters are symmetrically arranged on both sides of the second sliding plate.

[0013] Preferably, it also includes a transmission component, which includes a transmission connecting member. The rotating shaft passes through the interior of the mounting plate, and the end of the rotating shaft away from the sliding plate is connected to the transmission connecting member. A rotating transmission rod is rotatably provided on the transmission connecting member, and a transmission member is rotatably provided on the rotating transmission rod, and the transmission member is connected to the sliding member.

[0014] Preferably, the rotating bracket is provided with a clamping groove, the clamping groove is located directly above the bidirectional screw rod, a threaded connector is provided on the bottom of the threaded member, an internal threaded hole is provided on the threaded connector, the threaded connector is slidingly connected to the clamping groove, the threaded connector is threadedly connected to the bidirectional screw rod, the thread directions on both sides of the bidirectional screw rod are opposite, the thread directions of the internal threaded holes set on multiple groups of threaded connectors are the same, and a rotating knob is provided on the bidirectional screw rod.

[0015] Preferably, two groups of rotating brackets are provided on the first sliding plate, and two groups of rotating brackets are each provided with two groups of clamping positioning members, and the multiple groups of clamping positioning members are distributed on the sliding plate in a mirror-symmetrical manner.

[0016] Preferably, the first sliding plate is provided with a plurality of sliding limiting grooves, and the plurality of sliding limiting grooves are slidingly connected to the bottom of the rotating bracket.

[0017] The above technical solution of the utility model has the following beneficial technical effects:

[0018] The present device clamps and fixes the micro-inverter assembly by a sliding clamping method. The mirror-sliding clamping positioning parts can ensure that the present device can adapt to micro-inverter assemblies of different models and sizes, thereby achieving a compatible clamping and fixing effect for various micro-inverter assemblies of the present device, avoiding the use of targeted installation and fixing structures to fix the micro-inverter assembly during use. Therefore, when the micro-inverter assembly is replaced, the new micro-inverter assembly can be clamped and fixed without replacing the present device. At the same time, the present device adopts a mirror-sliding clamping method to ensure that the micro-inverter assembly is always in the center of the mounting plate during the installation and fixing process, thereby ensuring that the center of the micro-inverter assembly is located directly above the air outlet position, so that during use, air can be introduced from the side through the fan, thereby facilitating air cooling of the micro-inverter assembly and ensuring the stability of the micro-inverter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of an embodiment of a component fixing structure of a micro-inverter for a photovoltaic circuit according to the present invention;

[0020] Figure 2 This is a schematic structural diagram of a sliding plate in an embodiment of the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A;

[0022] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at point B;

[0023] 1. Mounting plate; 2. Connecting bracket; 3. Connecting member; 4. Air inlet window; 5. Fan; 6. Air outlet; 7. Transmission component; 701. Transmission connecting member; 702. Rotating transmission rod; 703. Transmission member; 704. Sliding member; 8. Telescopic rod; 9. Driving component; 901. Connecting rod; 902. Rotating connecting member; 903. Rotating connecting rod; 904. Sliding limit member; 905. Second sliding plate; 10. Rotating bracket; 11. Rotating knob; 12. Bidirectional screw rod; 13. Threaded member; 14. Clamping connecting member; 15. Clamping positioning member; 16. First sliding plate; 17. Rotating shaft. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] Example 1: Please refer to Figure 1-4 The utility model provides a technical solution: a component fixing structure of a micro inverter for a photovoltaic circuit includes a mounting plate 1; a transmission component 7 for mirror synchronous transmission is provided on the side of the mounting plate 1, and the transmission component 7 includes a sliding member 704;

[0027] A first sliding plate 16 is provided on the top of the mounting plate 1, and the first sliding plate 16 is slidably connected to the sliding member 704. A rotating bracket 10 is provided on the sliding member 704, and a bidirectional screw rod 12 is rotatably provided on the rotating bracket 10. Two groups of screw members 13 are threaded on the bidirectional screw rod 12, and a clamping connector 14 is provided on the screw member 13. A clamping positioning member 15 is provided on the side of the clamping connector 14 for clamping and fixing the micro-inverter assembly; two groups of rotating brackets 10 are provided on the first sliding plate 16, and the two groups of rotating brackets 10 are each provided with two groups of clamping positioning members 15, and multiple groups of clamping positioning members 15 are distributed on the first sliding plate 16 in a mirror-symmetrical manner; two groups of rotating brackets 10 are provided on the first sliding plate 16, and the two groups of rotating brackets 10 are each provided with two groups of clamping positioning members 15, and multiple groups of clamping positioning members 15 are distributed on the first sliding plate 16 in a mirror-symmetrical manner.

[0028] It also includes an air inlet window 4; the air inlet window 4 is arranged on the side of the mounting plate 1, and a fan 5 is arranged to rotate inside the air inlet window 4. A ventilation pipe is provided inside the mounting plate 1, one end of the ventilation pipe is connected to the air inlet window 4, and an air outlet 6 is provided on the other end of the ventilation pipe. The air outlet 6 is arranged on the first sliding plate 16 and is used to cool the micro inverter assembly with air.

[0029] The mounting plate 1 is provided with a connecting piece 3 , the connecting piece 3 is provided with a connecting bracket 2 , and the connecting bracket 2 is provided with a fixing threaded hole.

[0030] The rotating bracket 10 is provided with a clamping groove, which is located directly above the bidirectional screw rod 12. A threaded connector is provided on the bottom of the threaded member 13, and an internal threaded hole is provided on the threaded connector. The threaded connector is slidably connected to the clamping groove, and the threaded connector is threadedly connected to the bidirectional screw rod 12. The thread directions on both sides of the bidirectional screw rod 12 are opposite, and the thread directions of the internal threaded holes set on multiple groups of threaded connectors are the same. A rotating knob is provided on the bidirectional screw rod 12.

[0031] When the device is in working state, the rotating shaft 17 is driven by the telescopic rod 8, thereby realizing the effect of mirror synchronous transmission of the device. Compared with the traditional device, the device is driven by the telescopic rod 8 and can control the sliding position of the sliding member 704 with higher accuracy than the traditional motor drive method, thereby avoiding the motor being in a locked state for a long time.

[0032] When the device is installed and fixed, the combination of the connecting member 3 and the connecting bracket 2 can facilitate the installation, assembly and fixation of the mounting plate 1 of the device, thereby reducing the difficulty of installing the device.

[0033] After the device is installed and fixed, the micro-inverter assembly is placed at the center of the first sliding plate 16. At this time, the telescopic rod 8 drives the driving component 9 to rotate the rotating shaft 17. When the telescopic rod 8 extends outward, the telescopic rod 8 pushes the connecting rod 901 to slide sideways. The connecting rod 901 can make the rotating connecting member 902 rotate and tilt when the connecting rod 901 slides sideways through the rotation connection combination with the rotating connecting member 902, thereby reducing the distance between the connecting rod 901 and the side of the second sliding plate 905. When the connecting rod 901 contacts the side of the second sliding plate 905, the connecting rod 901 pushes the second sliding plate 905. When the plate 905 tilts and rotates, the rotating connecting rod 903 on the rotating connecting member 902 can rotate along with the rotating connecting member 902, thereby facilitating the sliding limit member 904 to slide inside the second sliding plate 905. The combination of the sliding limit members 904 symmetrically arranged on the second sliding plate 905 can prevent the device from tilting during the transmission process, thereby ensuring the transmission stability of the device. The structure of the rotating combined connecting rod 901 and the rotating connecting member 902 can ensure that there will be no interference between the linearly sliding telescopic rod 8 and the arc-shaped rotating second sliding plate 905.

[0034] By precisely controlling the rotation angle of the rotating shaft 17 through the telescopic rod 8, the transmission connector 701 at the other end of the rotating shaft 17 can be rotated, and the transmission connector 701 drives multiple sets of rotating transmission rods 702 to rotate. The rotating transmission rods 702 drive the transmission member 703 to slide, thereby achieving the mirror-image synchronous transmission effect of the present device, thereby ensuring that the micro-inverter assembly is located at the center of the first sliding plate 16 of the present device when the present device is clamped and fixed.

[0035] When multiple groups of sliding members 704 are close to each other, the rotation effect of the bidirectional screw 12 can be achieved by turning the rotating knob, thereby driving multiple groups of threaded members 13 to slide toward each other. By adjusting the scoring position of the threaded members 13, the device can effectively achieve adaptive adjustment of the spacing of the side limiting grooves of micro-inverter components of different models, thereby ensuring the compatibility and accuracy of the device. When the spacing of multiple groups of threaded members 13 is the same as the spacing of the side limiting grooves of the micro-inverter component, continuing to rotate the rotating shaft 17 can achieve the accurate clamping and fixing effect of the micro-inverter component by the device.

[0036] After being clamped and fixed stably, turning on the fan 5 can cool the bottom of the micro-inverter assembly through the ventilation pipe inside the mounting plate 1, thereby ensuring the long-term stable use of the micro-inverter assembly of this device.

[0037] Example 2: Figure 1-4As shown, the component fixing structure of the photovoltaic circuit micro-inverter disclosed in the second embodiment of the present invention has a structure that is basically the same as that in the first embodiment, except that a telescopic rod 8 is provided on the mounting plate 1, and a driving component 9 is provided on the telescopic rod 8. The driving component 9 includes a connecting rod 901, which is connected to the telescopic rod 8. A rotating connecting member 902 is rotatably provided on the connecting rod 901, a rotating connecting rod 903 is provided on the rotating connecting member 902, and a sliding limiter 904 is provided on the rotating connecting rod 903; a rotating shaft 17 is rotatably provided on the mounting plate 1, and a second sliding plate 905 is provided on the rotating shaft 17, and the side of the second sliding plate 905 is connected to the sliding limiter 904. Sliding connection, a sliding groove is provided inside the second sliding plate 905, and the sliding groove is a waist-shaped hole. The diameter of the sliding limiter 904 is larger than the width of the waist-shaped hole. A sliding shaft is provided on the sliding limiter 904, and the sliding shaft is slidably connected to the inner wall of the waist-shaped hole. Multiple groups of sliding limiters 904 are symmetrically arranged on both sides of the second sliding plate 905; it also includes a transmission component 7, the transmission component 7 includes a transmission connection 701, the rotating shaft 17 passes through the inside of the mounting plate 1, and the end of the rotating shaft 17 away from the second sliding plate 905 is connected to the transmission connection 701, and a rotating transmission rod 702 is rotatably provided on the transmission connection 701, and a transmission component 703 is rotatably provided on the rotating transmission rod 702, and the transmission component 703 is connected to the sliding component 704.

[0038] Through the combination of the driving component 9 and the transmission component 7, the accuracy of the mirror-image synchronous sliding of multiple clamping structures of the device can be achieved, thereby ensuring the mirror-image clamping stability of the device. The use of the telescopic rod 8 for clamping and fixing can effectively improve the stability of the clamping lock of the device, avoiding problems such as motor overheating or loosening after long-term clamping caused by traditional motor transmission clamping.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0040] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A component fixing structure for a micro inverter for a photovoltaic circuit, characterized in that: It comprises a mounting plate (1); a transmission component (7) for mirror-synchronous transmission is provided on the side of the mounting plate (1); the transmission component (7) comprises a sliding member (704); A first sliding plate (16) is provided on the top of the mounting plate (1), the first sliding plate (16) is slidably connected to a sliding member (704), a rotating bracket (10) is provided on the sliding member (704), a bidirectional screw rod (12) is rotatably provided on the rotating bracket (10), two groups of threaded members (13) are threadedly provided on the bidirectional screw rod (12), a clamping connection member (14) is provided on the threaded member (13), and a clamping positioning member (15) is provided on the side of the clamping connection member (14) for clamping and fixing the micro inverter assembly.

2. The component fixing structure of the micro inverter for photovoltaic circuit according to claim 1, characterized in that: The mounting plate (1) is provided with a telescopic rod (8), the telescopic rod (8) is provided with a driving component (9), the driving component (9) comprises a connecting rod (901), the connecting rod (901) is connected to the telescopic rod (8), a rotating connecting piece (902) is rotatably provided on the connecting rod (901), a rotating connecting rod (903) is provided on the rotating connecting piece (902), and a sliding stopper (904) is provided on the rotating connecting rod (903).

3. The component fixing structure of the micro inverter for photovoltaic circuit according to claim 2, characterized in that: A rotating shaft (17) is rotatably arranged on the mounting plate (1), a second sliding plate (905) is arranged on the rotating shaft (17), a side surface of the second sliding plate (905) is slidably connected to a sliding stopper (904), a sliding groove is arranged inside the second sliding plate (905), a diameter of the sliding stopper (904) is larger than a width of the waist-shaped hole, a sliding shaft is arranged on the sliding stopper (904), the sliding shaft is slidably connected to an inner wall of the sliding groove, and a plurality of groups of sliding stoppers (904) are symmetrically arranged on both sides of the second sliding plate (905).

4. The component fixing structure of the micro inverter for photovoltaic circuit according to claim 3, characterized in that: The invention also comprises a transmission component (7), the transmission component (7) comprising a transmission connecting member (701), a rotating shaft (17) passing through the interior of the mounting plate (1), an end of the rotating shaft (17) away from the second sliding plate (905) being connected to the transmission connecting member (701), a rotating transmission rod (702) being rotatably provided on the transmission connecting member (701), a transmission member (703) being rotatably provided on the rotating transmission rod (702), and the transmission member (703) being connected to the sliding member (704).

5. The component fixing structure of the micro inverter for photovoltaic circuit according to claim 1, characterized in that: The rotating bracket (10) is provided with a clamping groove, the clamping groove is located directly above the bidirectional screw (12), a threaded connector is provided at the bottom of the threaded member (13), an internal threaded hole is provided on the threaded connector, the threaded connector is slidably connected to the clamping groove, the threaded connector is threadedly connected to the bidirectional screw (12), the threads on both sides of the bidirectional screw (12) are in opposite directions, the internal threaded holes provided on the multiple groups of threaded connectors have the same thread direction, and a rotating knob is provided on the bidirectional screw (12).

6. The component fixing structure of the micro inverter for photovoltaic circuit according to claim 1, characterized in that: A rotating bracket (10) is provided on the first sliding plate (16), and a clamping positioning member (15) is provided on the rotating bracket (10).

7. The component fixing structure of the micro inverter for photovoltaic circuit according to claim 1, characterized in that: The first sliding plate (16) is provided with a plurality of sets of sliding limit grooves, and the plurality of sets of sliding limit grooves are slidably connected to the bottom of the rotating bracket (10).

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