Instrument shell for field test efficiency of photovoltaic power generation inverter

Abstract

The utility model relates to the technical field of photovoltaic power stations, in particular to an instrument shell for testing the field efficiency of a photovoltaic power generation inverter, which comprises a shell body, an opening is arranged on the front end wall of the shell body, a socket and a vertical plate are arranged on the inner side of the opening, and the vertical plate is arranged on the front end wall of the shell body. An inverter is installed at the front end of the socket, penetrating openings are formed in the upper end wall and the lower end wall of the vertical plate in a penetrating mode, clamping grooves are formed in the left end wall and the right end wall of the middle of the vertical plate, clamping bases are installed on the inner sides of the clamping grooves, transverse pieces are installed at the side ends of the clamping bases, and limiting rods are arranged on the end walls of the transverse pieces in a penetrating mode. The front end area of the opening is blocked by the transverse piece on the end wall of the clamping seat, the through hole is formed in the end wall of the transverse piece in a penetrating mode and used for being movably connected with the limiting rod, the limiting rod moves and faces the end wall of the side, facing the opening, of the shell, the limiting rod makes contact with the shell, and the limiting rod is used for limiting the wiring harness.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power stations, in particular to an instrument housing for on-site testing efficiency of a photovoltaic power generation inverter. Background Art

[0002] A photovoltaic power station refers to a power generation system that utilizes solar energy and uses special materials such as crystalline silicon panels, inverters and other electronic components to generate electricity. It is a photovoltaic power generation system that is connected to the power grid and transmits electricity to the power grid. In a photovoltaic power station, there will be power generation loss assessment tools, such as a power generation loss assessor. The interior is composed of electrical devices, such as inverters and meters, which are used to detect photovoltaic power generation losses. The shell of this assessor is used to assemble electrical appliances for detecting photovoltaic power generation losses. The shell plus electrical devices constitute a device for detecting photovoltaic power generation losses, which is mainly used to collect DC power at the input end and AC power at the output end. Under the same irradiation and temperature, the inverter loss efficiency is calculated to determine whether the inverter equipment efficiency meets the requirements.

[0003] The ordinary shell structure is simple, with an internal cavity and a card for assembling electrical appliances, which is used to connect electrical components. However, after the electrical components are assembled, there will be more circuits. The shell structure is simple and it is impossible to arrange the wiring harness directly and quickly, resulting in the lines being arranged in a messy manner in the shell. It will easily cause the lines to become tangled and short-circuited in the shell, which is not safe enough. Utility Model Content

[0004] The utility model aims to provide an instrument housing for on-site testing efficiency of a photovoltaic power generation inverter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shell of an instrument for testing the efficiency of a photovoltaic power generation inverter on site comprises a shell, an opening is formed on the front end wall of the shell, a socket and a vertical plate are installed on the inner side of the opening, an inverter is installed on the front end of the socket, through-openings are formed on the upper and lower end walls of the vertical plate, a slot is formed on the middle left and right end walls of the vertical plate, a holder is installed on the inner side of the slot, a cross piece is installed on the side end of the holder, a limit rod is formed on the end wall of the cross piece, the limit rod comprises a rubber sleeve and a solid rod, and a rubber sleeve is installed on the outer side of the solid rod.

[0007] Preferably, the housing is fixedly connected to the socket and the riser.

[0008] Preferably, three vertical plates are provided, and the through openings are symmetrically distributed about the center of the vertical plates.

[0009] Preferably, the vertical plate is connected to the card seat through a card slot.

[0010] Preferably, the holder is fixedly connected to the transverse piece, and the transverse piece is movably connected to the limiting rod.

[0011] Preferably, the rubber sleeve and the fixing rod are bonded and connected to each other.

[0012] The utility model has at least the following beneficial effects:

[0013] 1. The opening is divided into four equal parts by the vertical plate, which is convenient for the classification and assembly of electrical components and improves the classification performance of electrical components. The socket is used for direct connection to the inverter, and the card slot is connected to the card seat for connecting the vertical plate and the card seat, which is convenient for disassembly and assembly of the card seat;

[0014] 2. The front end area of ​​the opening is protected by the transverse piece of the end wall of the card seat. A through hole is set through the end wall of the transverse piece for movably connecting the limit rod. The limit rod is movable to the end wall of the shell on one side of the opening. The limit rod and the shell are in contact. The limit rod is used to limit the wiring harness. The wiring harness can also be wrapped around the limit rod in advance, and the limit rod is used to bundle the wiring harness to improve the neatness of the wiring harness. The rubber sleeve is made of rubber material, which has the functions of increasing friction and insulation performance. The fixed rod is made of metal material to improve the toughness of the entire limit rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 A schematic side view of a card holder and a cross piece;

[0018] Figure 3 for Figure 1 Schematic diagram of the rubber sleeve and the fixing rod;

[0019] Figure 4 for Figure 1 An enlarged schematic diagram of point A.

[0020] In the figure: 1, shell; 2, opening; 3, socket; 4, inverter; 5, vertical plate; 6, through-hole; 7, socket; 8, horizontal piece; 9, limit rod; 10, rubber sleeve; 11, fixing rod; 12, slot. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution for an instrument housing for on-site testing efficiency of a photovoltaic power generation inverter:

[0023] Embodiment 1:

[0024] like Figure 1-4 As shown, an instrument housing for on-site efficiency testing of a photovoltaic power generation inverter comprises a housing 1, an opening 2 is provided on the front end wall of the housing 1, a socket 3 and a vertical plate 5 are installed on the inner side of the opening 2, an inverter 4 is installed on the front end of the socket 3, through-holes 6 are penetrated through the upper and lower end walls of the vertical plate 5, a card slot 12 is provided on the middle left and right end walls of the vertical plate 5, a card seat 7 is installed on the inner side of the card slot 12, a cross piece 8 is installed on the side end of the card seat 7, a limit rod 9 is penetrated through the end wall of the cross piece 8, the limit rod 9 comprises a rubber sleeve 10 and a fixing rod 11, and the rubber sleeve 10 is installed on the outer side of the fixing rod 11.

[0025] Embodiment 2:

[0026] Based on the first embodiment, Figure 1 and Figure 2 As shown, the housing 1 is fixedly connected to the socket 3 and the riser 5. Three risers 5 are provided, and the through openings 6 are symmetrically distributed about the center of the riser 5. The riser 5 is connected to the holder 7 through the slot 12. The opening 2 is divided into four equal parts by the riser 5, which is convenient for classifying and assembling electrical components and improving the classification performance of electrical components. The socket 3 is used for directly connecting the inverter 4, and the slot 12 is connected to the holder 7 for assembling the riser 5 and the holder 7, which is convenient for disassembling and assembling the holder 7. The inverter 4 can also be other electrical components for detecting power loss in photovoltaic power stations, such as power metering components, etc., which are used in conjunction with the entire housing for assembly;

[0027] Based on the first embodiment, Figure 3 and Figure 4As shown, the base 7 is fixedly connected to the cross piece 8, and the cross piece 8 is movably connected to the limit rod 9, the rubber sleeve 10 and the fixed rod 11 are bonded and connected, and the cross piece 8 through the end wall of the base 7 is blocked in the front end area of ​​the opening 2, and the end wall of the cross piece 8 is penetrated with a through hole for movably connecting the limit rod 9, the limit rod 9 is movable, facing the end wall of the shell 1 on one side of the opening 2, the limit rod 9 and the shell 1 are in contact, the limit rod 9 is used to limit the wiring harness, the wiring harness can also be wrapped around the limit rod 9 in advance, and the limit rod 9 is used to bundle the wiring harness, so as to improve the neatness of the wiring harness, and the rubber sleeve 10 is made of rubber material, which has the advantages of increasing friction and insulation performance, and the fixed rod 11 is made of metal material, which is used to improve the toughness of the entire limit rod 9.

[0028] Working principle: the opening 2 is divided into four equal parts by the vertical plate 5, which is convenient for classifying and assembling electrical components and improving the classification performance of electrical components. The socket 3 is used for directly connecting the inverter 4. The card slot 12 is connected to the card seat 7 for assembling the vertical plate 5 and the card seat 7, which is convenient for disassembling and assembling the card seat 7. The inverter 4 can also be other electrical components for detecting power loss in photovoltaic power stations, such as power metering devices, etc., which are used in conjunction with the entire shell for assembly. The cross piece 8 of the end wall of the card seat 7 is blocked in the front end area of ​​the opening 2. The end wall of the cross piece 8 is penetrated with a through hole for movably connecting the limit rod 9. The limit rod 9 is movable and faces the end wall of the shell 1 on one side of the opening 2. The limit rod 9 and the shell 1 are in contact. The limit rod 9 is used to limit the wiring harness. The wiring harness can also be wound around the limit rod 9 in advance, and the limit rod 9 is used to bundle the wiring harness to improve the neatness of the wiring harness. The rubber sleeve 10 is made of rubber material, which has the advantages of increasing friction and insulation performance. The solid rod 11 is made of metal material to improve the toughness of the entire limit rod 9.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A housing of an instrument for testing the efficiency of a photovoltaic power generation inverter on site, comprising a housing (1), characterized in that: The front end wall of the shell (1) is provided with an opening (2), the inner side of the opening (2) is provided with a socket (3) and a vertical plate (5), the front end of the socket (3) is provided with an inverter (4), the upper and lower end walls of the vertical plate (5) are provided with through openings (6), the middle left and right end walls of the vertical plate (5) are provided with a card slot (12), the inner side of the card slot (12) is provided with a card seat (7), the side end of the card seat (7) is provided with a transverse plate (8), the end wall of the transverse plate (8) is provided with a limit rod (9), the limit rod (9) comprises a rubber sleeve (10) and a fixed rod (11), and the outer side of the fixed rod (11) is provided with a rubber sleeve (10).

2. The instrument housing for on-site efficiency testing of a photovoltaic power generation inverter according to claim 1, characterized in that: The housing (1) is fixedly connected to the socket (3) and the vertical plate (5).

3. The instrument housing for on-site efficiency testing of photovoltaic inverters according to claim 1 is characterized in that: Three vertical plates (5) are provided, and the through openings (6) are symmetrically distributed about the center of the vertical plate (5).

4. The instrument housing for on-site efficiency testing of photovoltaic inverters according to claim 1, characterized in that: The vertical plate (5) is clamped with the clamping seat (7) via a clamping slot (12).

5. The instrument housing for on-site efficiency testing of photovoltaic inverters according to claim 1, characterized in that: The clamping seat (7) and the transverse piece (8) are fixedly connected, and the transverse piece (8) and the limiting rod (9) are movably connected.

6. The instrument housing for on-site efficiency testing of photovoltaic inverters according to claim 1, characterized in that: The rubber sleeve (10) and the fixing rod (11) are bonded and connected.

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