Printed circuit type solar photovoltaic cold box lead structure capable of being quickly plugged

Abstract

The invention discloses a printed circuit type solar photovoltaic cold box lead structure capable of being quickly plugged, and belongs to the technical field of cold chain transportation equipment, the printed circuit type solar photovoltaic cold box lead structure comprises a heat preservation box body, the heat preservation box body is of a 7-shaped structure, and thin film photovoltaic assemblies are arranged on the top and the side faces of the outer side wall of the heat preservation box body; a printed circuit integrated part is pre-embedded in the corner of the heat preservation box body, the printed circuit integrated part is connected with the thin film photovoltaic module through a wire, and one end of the printed circuit integrated part is connected with an MPPT controller through an output bus interface and used for outputting current generated by a photovoltaic panel to the MPPT controller; according to the printed circuit type solar photovoltaic cold box lead structure capable of being quickly plugged, the photovoltaic panel lead mode is greatly simplified, the number of wires is reduced, the space occupied by the leads is reduced, and the wiring efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cold chain transportation equipment, and in particular to a printed circuit solar photovoltaic cold box lead structure that can be quickly plugged in. Background Art

[0002] Cold chain trucks, also known as refrigerated trucks, refer to closed van trucks used to maintain the temperature of frozen goods. Refrigerated trucks are commonly used to transport frozen foods (refrigerated trucks), dairy products (dairy trucks), vegetables and fruits (fresh goods trucks), vaccines and medicines (vaccine trucks), etc. In addition to the energy required for the refrigerated trucks themselves, the refrigerated compartments themselves also require a lot of electricity to maintain the operation of the refrigeration equipment, so refrigerated trucks that use fuel also consume far more energy than other models of the same model. Due to the various bottlenecks in battery technology, power has always been a big problem for electric vehicles. The on-board battery needs to power the compressor of the refrigerated box and the electric vehicle at the same time, which consumes a lot of power, resulting in poor endurance. Frequent parking and charging are required, which reduces the working efficiency of electric refrigerated trucks. With the rapid development of solar energy technology in recent years, solar energy has been widely used and rapidly popularized as a new type of energy. At present, most solar cold chain vehicles assemble photovoltaic modules on the outer wall of the cold compartment. The wires of the photovoltaic modules are usually led to the controller through wiring tubes. In order to ensure safety, the sizes of the wires and connectors are relatively large, resulting in the connection occupying a large space. In addition, the wires close to the controller will become concentrated and complicated, making it inconvenient to connect. Summary of the invention

[0003] The purpose of the present invention is to provide a printed circuit solar photovoltaic cold box lead structure that can be quickly plugged in to solve the problems existing in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides a quickly pluggable printed circuit solar photovoltaic cold box lead structure, including an insulation box body, the insulation box body is a seven-shaped structure, and the top and sides of the outer wall of the insulation box body are provided with thin-film photovoltaic components. Printed circuit integration parts are pre-buried at the corners of the insulation box body. The printed circuit integration parts are connected to the thin-film photovoltaic components through wires, and one end of the printed circuit integration part is connected to the MPPT controller through an output bus interface, which is used to output the current generated by the photovoltaic panel to the MPPT controller.

[0005] Preferably, a plurality of the thin-film photovoltaic modules are provided, and the plurality of the thin-film photovoltaic modules are arranged in a line along the length direction of the top and the side surfaces of the thermal insulation box.

[0006] Preferably, the outer layer material of the side wall at the top of the insulation box is set to a fiberglass composite resin board, which has high strength, light weight and insulation. The fiberglass composite resin board is provided with a groove consistent with the size of the thin-film photovoltaic component, and the thin-film photovoltaic component is fixed in the groove.

[0007] Preferably, two holes are provided at the bottom of the groove, and quick plug sockets are provided in the holes.

[0008] Preferably, the positive and negative lead-out ends of the thin-film photovoltaic module are both provided with spring sheets, the two spring sheets are arranged in parallel, and a diode is arranged between the two spring sheets for protecting the thin-film photovoltaic module, the spring sheet is plugged into the quick socket, and the positive and negative electrodes are ensured to correspond.

[0009] Preferably, the printed circuit assembly is an L-shaped corner piece structure, and its material is a glass-optical composite resin with insulating properties. Copper conductive tapes are printed on the inner and outer sides of the printed circuit assembly. The copper conductive tape on the outer side is used to connect to the positive electrode, and the copper conductive tape on the inner side is used to connect to the negative electrode.

[0010] Preferably, a plurality of terminals are evenly arranged on the printed circuit assembly, and the terminals include a positive terminal and a negative terminal, the positive terminal is connected to the copper conductive tape on the outside of the printed circuit assembly, the negative terminal is connected to the copper conductive tape on the inside of the printed circuit assembly, and the positive terminal and the negative terminal are connected to the positive and negative poles of the quick plug through the wire.

[0011] Preferably, the interior of the thermal insulation box is filled with foamed polyurethane insulation material.

[0012] Therefore, the present invention adopts the above-mentioned quick-connectable printed circuit solar photovoltaic cold box lead structure, which greatly simplifies the photovoltaic panel lead method, reduces the number of wires, reduces the space occupied by the leads, and can significantly improve the wiring efficiency. In particular, by reducing the space occupied by the leads, the local insulation layer of the cold box can be avoided from being damaged.

[0013] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a printed circuit solar photovoltaic cold box lead structure that can be quickly plugged in according to the present invention;

[0015] Figure 2 This is a schematic diagram of the connection of a quick-pluggable printed circuit solar photovoltaic cold box lead structure of the present invention;

[0016] Figure 3It is a cross-sectional schematic diagram of a printed circuit integrated component of a printed circuit type solar photovoltaic cold box lead structure that can be quickly plugged in according to the present invention;

[0017] Figure numerals: 1. Insulation box; 2. Thin-film photovoltaic module; 3. Printed circuit assembly; 4. Wire; 5. Output bus interface; 6. MPPT controller; 7. Glass fiber reinforced plastic composite resin board; 8. Groove; 9. Quick jack; 10. Spring sheet; 11. Diode; 12. Copper conductive tape; 13. Terminal; 131. Positive terminal; 132. Negative terminal. DETAILED DESCRIPTION

[0018] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1-Figure 2 As shown, a quick-pluggable printed circuit solar photovoltaic cold box lead structure includes an insulation box 1, which is a right-angle structure and is filled with foamed polyurethane insulation material; a plurality of thin-film photovoltaic modules 2 are arranged on the top and sides of the outer wall of the insulation box 1, and the plurality of thin-film photovoltaic modules 2 are arranged in a line along the length direction of the top and side of the insulation box 1; a printed circuit assembly 3 is pre-buried at the corner of the insulation box 1, and the printed circuit assembly 3 is connected to the thin-film photovoltaic module 2 through a wire 4, and one end of the printed circuit assembly 3 is connected to the MPPT controller 6 through the output bus interface 5, which is used to output the current generated by the photovoltaic panel to the MPPT controller 6.

[0020] The outer layer material of the side wall at the top of the insulation box body 1 is set to a glass fiber reinforced plastic composite resin board 7, which has high strength, light weight and insulation. A groove 8 of the same size as the thin-film photovoltaic component 2 is specially reserved on the glass fiber reinforced plastic composite resin board 7, and the thin-film photovoltaic component 2 can be directly fixed in the groove 8; two holes are set at the bottom of the groove 8, and quick plug sockets 9 are pre-installed in the holes.

[0021] The positive and negative lead ends of the thin-film photovoltaic component 2 are both provided with spring sheets 10. The two spring sheets 10 are arranged in parallel, and a diode 11 is arranged between the two spring sheets 10 to protect the thin-film photovoltaic component 2. When connected, the spring sheet 10 is directly plugged into the quick socket 9 to ensure that the positive and negative poles correspond.

[0022] The printed circuit assembly 3 is an L-shaped corner piece structure, and its material is glass-optical composite resin, which has insulation properties. Copper conductive strips 12 are printed on the inner and outer sides of the printed circuit assembly 3. The outer copper conductive strip 12 is used to connect the positive electrode, and the inner copper conductive strip 12 is used to connect the negative electrode. Figure 3 As shown, a pair of terminals 13 are pre-installed on the printed circuit assembly 3 at a certain interval, and the terminals 13 include a positive terminal 131 and a negative terminal 132. The positive terminal 131 is connected to the copper conductive tape 12 on the outside of the printed circuit assembly 3, and the negative terminal 132 is connected to the copper conductive tape 12 on the inside of the printed circuit assembly 3. The positive terminal 131 and the negative terminal 132 are connected to the positive and negative poles of the quick plug 9 through the wire 4.

[0023] Therefore, the present invention adopts the above-mentioned quick-connectable printed circuit solar photovoltaic cold box lead structure, which greatly simplifies the photovoltaic panel lead method, reduces the number of wires, reduces the space occupied by the leads, and can significantly improve the wiring efficiency. In particular, by reducing the space occupied by the leads, the local insulation layer of the cold box can be avoided from being damaged.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A printed circuit solar photovoltaic cold box lead structure that can be quickly plugged in, characterized in that: It includes an insulation box, which is a seven-shaped structure. The top and sides of the outer side wall of the insulation box are provided with thin-film photovoltaic modules. Printed circuit integration components are pre-buried at the corners of the insulation box. The printed circuit integration components are connected to the thin-film photovoltaic modules through wires. One end of the printed circuit integration component is connected to an MPPT controller through an output bus interface, which is used to output the current generated by the photovoltaic panel to the MPPT controller.

2. According to claim 1, a quick-pluggable printed circuit solar photovoltaic cold box lead structure is characterized in that: A plurality of thin-film photovoltaic modules are provided, and the plurality of thin-film photovoltaic modules are arranged in a line along the length direction of the top and the side of the heat preservation box.

3. The quick-pluggable printed circuit solar photovoltaic cold box lead structure according to claim 1 is characterized in that: The outer layer material of the side wall at the top of the heat preservation box is set as a glass fiber reinforced plastic composite resin plate, and the glass fiber reinforced plastic composite resin plate is provided with a groove with the same size as the thin-film photovoltaic component, and the thin-film photovoltaic component is fixed in the groove.

4. The quick-pluggable printed circuit solar photovoltaic cold box lead structure according to claim 3 is characterized in that: Two holes are arranged at the bottom of the groove, and quick plug holes are arranged in the holes.

5. The quick-pluggable printed circuit solar photovoltaic cold box lead structure according to claim 4 is characterized in that: The positive and negative lead-out ends of the thin-film photovoltaic assembly are both provided with spring sheets, the two spring sheets are arranged in parallel, a diode is arranged between the two spring sheets, and the spring sheets are plugged into the quick plug sockets.

6. The quick-pluggable printed circuit solar photovoltaic cold box lead structure according to claim 4, characterized in that: The printed circuit integrated component is an L-shaped corner component structure, and its material is glass-optical composite resin. The inner side and the outer side of the printed circuit integrated component are both printed with copper conductive tapes.

7. A quick-pluggable printed circuit solar photovoltaic cold box lead structure according to claim 6, characterized in that: A plurality of terminals are evenly arranged on the printed circuit assembly, and the terminals include a positive terminal and a negative terminal. The positive terminal is connected to the copper conductive tape on the outside of the printed circuit assembly, and the negative terminal is connected to the copper conductive tape on the inside of the printed circuit assembly. The positive terminal and the negative terminal are connected to the positive and negative poles of the quick plug through the wire.

8. The quick-pluggable printed circuit solar photovoltaic cold box lead structure according to claim 1, characterized in that: The interior of the heat-insulating box is filled with foamed polyurethane heat-insulating material.

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