A photovoltaic energy storage AC / DC charging integrated device

Abstract

The present invention discloses a photovoltaic energy storage AC / DC charging integrated device, including an installation frame with a hollow interior, and also including: a charging unit, which is arranged on one side of the installation frame and is used to supply power to a car; a power supply unit, including a power supply component for supplying power to the charging unit, and an adjustment component arranged inside the power supply component for switching the power supply mode; the power supply component includes a third conductive rod inputting current from a power supply station and a photovoltaic panel installed on the upper end of the installation frame for supplying power to the charging unit. The power supply is initially supplied by the power generated by the photovoltaic panel. When the power generated by the photovoltaic panel is insufficient, the adjustment component is rotated, and the adjustment component is switched from connecting the power supply unit with the photovoltaic panel to connecting the power supply unit with the third conductive rod. The third conductive rod supplies the current output by the power supply station to the charging unit, thereby making comprehensive use of the photovoltaic power supply and the power supply station power supply, which is energy-saving and environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic energy storage and charging, and in particular to a photovoltaic energy storage AC and DC charging integrated device. Background Art

[0002] The new energy vehicle industry has entered a stage of accelerated development. After years of continuous efforts, the technical level has been significantly improved. At the same time, through the country's cultivation of the entire new energy vehicle industry chain for many years, each link has gradually matured, and rich and diversified new energy vehicle products continue to meet market demand. The use environment is also gradually optimized and improved. New energy vehicles are increasingly recognized by consumers. Setting up reasonable charging piles in shopping malls, residential parking lots, public buildings and other places will be conducive to the promotion and growth of new energy vehicles, stimulate the development of the new energy vehicle industry in the sinking market, and promote the use of clean energy and energy conservation. With the development and popularization of electric vehicles, the demand for charging piles will continue to grow, and the future market space may be broader. Under the condition that the difference in charging service fees is not large, the current market size and competition of public charging stations are rapidly increasing. Operators need to comprehensively consider their own investment costs and user needs to maximize their own interests.

[0003] However, during use, the charging piles in the prior art have a relatively single power supply method, which is usually powered by a power supply station. It is not possible to comprehensively utilize photovoltaic power supply and power supply from a power supply station. The energy-saving and environmental protection effects are relatively poor and need further improvement.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated photovoltaic energy storage AC / DC charging device to solve the problem that the charging piles in the prior art mentioned in the above background technology cannot comprehensively utilize photovoltaic power supply and power supply from power supply stations, and the energy saving and environmental protection effects are relatively poor.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A photovoltaic energy storage AC / DC charging integrated device, comprising a mounting frame with a hollow interior, and further comprising:

[0008] A charging unit, disposed on one side of the mounting frame, for supplying power to the vehicle;

[0009] A power supply unit, including a power supply component for supplying power to the charging unit, and a regulating component disposed inside the power supply component for switching a power supply mode;

[0010] The power supply assembly includes a third conductive rod inputting current from the power supply station and a photovoltaic panel installed at the upper end of the installation frame for supplying electric energy to the charging unit.

[0011] Furthermore, the charging unit includes:

[0012] There are multiple charging piles, which are fixedly connected to one end of the installation frame in sequence, and a charging head is provided on one side of the charging pile;

[0013] The air inlet extends from the lower part of the installation frame to the inside of the charging pile;

[0014] The air outlet extends from the upper part of the installation frame to the inside of the charging pile;

[0015] The fan is installed at the air outlet to dissipate heat inside the charging pile.

[0016] Furthermore, an energy storage block for storing the electric energy generated by the photovoltaic panel is installed at the bottom of the charging pile;

[0017] The power transmission block is installed at the upper part of the charging pile. The lower end of the power transmission block is electrically connected to the energy storage block through a wire, so as to transmit the electric energy in the energy storage block to the power transmission block.

[0018] Furthermore, the power supply component includes:

[0019] A first conductive rod extends from the lower end of the photovoltaic panel to the inside of the installation frame, wherein a partition for partitioning the inside of the installation frame into two upper and lower areas is fixedly connected in the middle of the installation frame;

[0020] A second conductive rod is disposed directly below the first conductive rod and extends from above the partition to below the partition, and the upper ends of the second conductive rod and the upper ends of the second conductive rod are both provided with first grooves corresponding to each other;

[0021] A first shunt rod is provided with a plurality of groups corresponding to the energy storage blocks one by one, and is fixedly connected to the side of the second conductive rod, and is used to shunt the current in the second conductive rod to a plurality of charging piles. The other end of the first shunt rod passes through the air inlet and is electrically connected to the rear side of the energy storage block.

[0022] Furthermore, the power supply component also includes:

[0023] An electric wire, one end of which is connected to the third conductive rod and the other end of which is connected to the power supply station, for inputting the current of the power supply station into the third conductive rod;

[0024] A fourth conductive rod is fixedly inserted in the installation frame, and a lower end of the fourth conductive rod and an upper end of the third conductive rod are both provided with second grooves corresponding to each other;

[0025] The second shunt rods are provided with a plurality of groups corresponding to the power transmission blocks one by one, one end of which is fixedly connected to the side of the fourth conductive rod and the other end is electrically connected to the power transmission block, so as to input the current into the corresponding power transmission blocks respectively.

[0026] Furthermore, the adjustment component includes:

[0027] A rotating shaft, rotatably connected to the inside of the installation frame, and a rotating rod for rotationally adjusting the rotating shaft is fixedly connected to one end of the rotating shaft located outside the installation frame;

[0028] A first rotating ring and a second rotating ring are fixedly sleeved on the outer side of the rotating shaft in sequence, the first rotating ring corresponds to the first groove, and the second rotating ring corresponds to the second groove;

[0029] The first conductive block is provided with two groups, which are fixedly connected to the outside of the first rotating ring in a straight line and are used to be inserted into the first groove for conducting electricity;

[0030] The second conductive blocks are provided in two groups and are fixedly connected in a straight line to the outside of the second rotating ring for being inserted into the second groove for conducting electricity. The projections of the straight line where the first conductive blocks are located and the straight line where the second conductive blocks are located along the extension direction of the rotating shaft are perpendicular to each other.

[0031] Furthermore, a retreat groove is provided in the first conductive block;

[0032] A limiting block is slidably inserted in the retreat groove, and one end of the limiting block located in the retreat groove is fixedly connected to a guide shaft;

[0033] A guide groove for guiding the guide shaft is provided inside the first conductive block and located on one side of the retreat groove;

[0034] A first telescopic block of a tightening spring for tightening the limit block is provided on the outside of the guide shaft and inside the retreat groove, one end of which is fixedly connected to the limit block, and the other end extends from the inside of the retreat groove to the outside of the first conductive block, for tightening the inside of the first groove to position the first conductive block.

[0035] Furthermore, the first telescopic block is provided with inclined surfaces at two corners outside the retreat groove, which are used to guide the first telescopic block from the outside of the first groove to the inside of the first groove.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The present invention initially supplies electricity generated by photovoltaic panels. When the electricity generated by the photovoltaic panels is insufficient, the adjustment component is rotated, and the adjustment component switches from connecting the power supply unit with the photovoltaic panel to connecting the power supply unit with the third conductive rod. The third conductive rod supplies the current output by the power supply station to the charging unit, thereby making comprehensive use of photovoltaic power supply and power supply station power supply, which is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a diagram showing the coordination relationship between the charging unit and the power supply unit of the present invention;

[0040] Figure 3 This is a diagram showing the coordination relationship between the power supply component and the adjustment component of the present invention;

[0041] Figure 4 This is a schematic diagram of the structure of the power supply assembly of the present invention;

[0042] Figure 5 It is a diagram showing the matching relationship between the first conversion ring and the second rotation ring of the present invention;

[0043] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle.

[0044] Figure numerals: 100, installation frame; 1001, air inlet; 1002, air outlet; 1003, partition; 1, charging unit; 11, charging pile; 111, energy storage block; 112, power transmission block; 113, wire; 12, charging head; 13, protective cover; 14, fan; 2, power supply unit; 21, power supply assembly; 210, photovoltaic panel; 211, first conductive rod; 2111, energy storage temporary storage block; 212, second conductive rod; 2121, first groove; 213, first shunt rod; 214, third conductive rod Rod; 2141, second groove; 215, wire; 216, fourth conductive rod; 217, second shunt rod; 22, adjustment assembly; 221, rotating shaft; 222, rotating rod; 223, first rotating ring; 2231, first conductive block; 22311, guide groove; 2232, retreat groove; 2233, limiting block; 2234, first telescopic block; 22341, inclined surface; 2235, guide shaft; 2236, tightening spring; 224, second rotating ring; 2241, second conductive block; 2242, second telescopic block. DETAILED DESCRIPTION

[0045] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0046] See also Figure 1-6 , the present invention provides a technical solution:

[0047] A photovoltaic energy storage AC / DC charging integrated device includes a mounting frame 100 with a hollow interior, and further includes:

[0048] A charging unit 1, provided on one side of the installation frame 100, for supplying power to the vehicle;

[0049] The power supply unit 2 includes a power supply component 21 for supplying power to the charging unit 1, and a regulating component 22 disposed inside the power supply component 21 for switching the power supply mode;

[0050] The power supply assembly 21 includes a third conductive rod 214 inputting current from a power supply station and a photovoltaic panel 210 installed at the upper end of the installation frame 100 for supplying electric energy to the charging unit 1 .

[0051] It should be noted that: when the car is charged, the electricity generated by the photovoltaic panel 210 is initially supplied. When the electricity generated by the photovoltaic panel 210 is insufficient, the adjustment component 22 is rotated, and the adjustment component 22 is switched from connecting the power supply unit 2 with the photovoltaic panel 210 to connecting the power supply unit 2 with the third conductive rod 214. The third conductive rod 214 supplies the current output by the power supply station to the charging unit 1, thereby making comprehensive use of photovoltaic power supply and power supply from the power supply station, which is energy-saving and environmentally friendly.

[0052] As an improvement, Figure 1-2 As shown, the charging unit 1 includes:

[0053] There are multiple charging piles 11, which are fixedly connected to one end of the installation frame 100 in sequence, and a charging head 12 is provided on one side of the charging pile 11;

[0054] The air inlet 1001 extends from the lower part of the installation frame 100 to the inside of the charging pile 11;

[0055] The air outlet 1002 extends from the upper part of the installation frame 100 to the inside of the charging pile 11;

[0056] A fan 14 is installed at the air outlet 1002 to dissipate heat inside the charging pile 11;

[0057] Preferably, a protective cover 13 is installed at one end of the air outlet 1002 located inside the installation frame 100 .

[0058] It should be noted that the fan 14 is powered by the third conductive rod 214. When the charging pile 11 generates heat during the charging process of the car, the fan 14 is started to extract the heat in the charging pile 11. During this process, the air in the charging pile 11 flows to the air inlet 1001, the charging pile 11, and the air outlet 1002, ensuring that the heat in the charging pile 11 can be discharged in time and is safe to use.

[0059] Further, such as Figure 2 As shown, an energy storage block 111 for storing the electric energy generated by the photovoltaic panel 210 is installed at the bottom of the charging pile 11;

[0060] The power transmission block 112 is installed at the upper part of the charging pile 11 . The lower end of the power transmission block 112 is electrically connected to the energy storage block 111 via a wire 113 , so as to transmit the electric energy in the energy storage block 111 to the power transmission block 112 .

[0061] Furthermore, the power supply component 21 includes:

[0062] A first conductive rod 211 extends from the lower end of the photovoltaic panel 210 to the inside of the installation frame 100, and a partition 1003 is fixedly connected in the middle of the installation frame 100 to separate the inside of the installation frame 100 into two upper and lower areas;

[0063] The second conductive rod 212 is disposed directly below the first conductive rod 211 and extends from above the partition 1003 to below the partition 1003. The upper ends of the second conductive rod 212 and the upper ends of the second conductive rod 212 are both provided with first grooves 2121 corresponding to each other;

[0064] A first shunt rod 213, which is provided with a plurality of groups corresponding to the energy storage blocks 111, and is fixedly connected to the side of the second conductive rod 212, and is used to shunt the current in the second conductive rod 212 to a plurality of charging piles 11, and the other end of the first shunt rod 213 passes through the air inlet 1001 and is electrically connected to the rear side of the energy storage block 111;

[0065] Preferably, an energy storage temporary block 2111 is provided on one side of the first conductive rod 211 , and is used for storing the electric energy generated by the photovoltaic panel 210 when the second conductive block 2241 is separated from the first groove 2121 .

[0066] Among them, Figure 4 As shown, the power supply component 21 also includes:

[0067] A wire 215, one end of which is connected to the third conductive rod 214, and the other end of which is connected to the power supply station, for inputting the current of the power supply station into the third conductive rod 214;

[0068] The fourth conductive rod 216 is fixedly inserted into the installation frame 100, and the lower end of the fourth conductive rod 216 and the upper end of the third conductive rod 214 are both provided with a second groove 2141 corresponding to each other;

[0069] A plurality of second shunt rods 217 are provided corresponding to the power transmission blocks 112 one by one, one end of which is fixedly connected to the side of the fourth conductive rod 216 and the other end is electrically connected to the power transmission block 112 for inputting current into the corresponding power transmission blocks 112 respectively.

[0070] As an improvement, Figure 5-6 As shown, the adjustment component 22 includes:

[0071] A rotating shaft 221 is rotatably connected to the inside of the installation frame 100, and one end of the rotating shaft 221 located outside the installation frame 100 is fixedly connected to a rotating rod 222 for rotationally adjusting the rotating shaft 221;

[0072] The first rotating ring 223 and the second rotating ring 224 are sequentially fixedly sleeved on the outer side of the rotating shaft 221, the first rotating ring 223 corresponds to the first groove 2121, and the second rotating ring 224 corresponds to the second groove 2141;

[0073] The first conductive blocks 2231 are provided in two groups and are fixedly connected to the outside of the first rotating ring 223 in a straight line, and are used to be inserted into the first groove 2121 for conducting electricity;

[0074] The second conductive blocks 2241 are provided with two groups, which are fixedly connected in a straight line to the outer side of the second rotating ring 224, and are used to be inserted into the second groove 2141 for conduction. The projections of the straight line where the first conductive blocks 2231 are located and the straight line where the second conductive blocks 2241 are located along the extension direction of the rotating shaft 221 are perpendicular to each other.

[0075] Further, such as Figure 6 As shown, a retreat groove 2232 is provided in the first conductive block 2231;

[0076] A limiting block 2233 is slidably inserted in the retreat groove 2232, and one end of the limiting block 2233 located in the retreat groove 2232 is fixedly connected to a guide shaft 2235;

[0077] A guide groove 22311 for guiding the guide shaft 2235 is provided inside the first conductive block 2231 and located on one side of the retreat groove 2232;

[0078] A first telescopic block 2234 with a tightening spring 2236 for tightening the limit block 2233 is provided on the outside of the guide shaft 2235 and inside the retreat groove 2232. One end of the first telescopic block 2234 is fixedly connected to the limit block 2233, and the other end extends from the inside of the retreat groove 2232 to the outside of the first conductive block 2231, so as to tighten the inside of the first groove 2121 to position the first conductive block 2231.

[0079] Furthermore, the first telescopic block 2234 is provided with inclined surfaces 22341 at two corners outside the retreat groove 2232 for guiding the first telescopic block 2234 from the outside of the first groove 2121 to the inside of the first groove 2121 .

[0080] A second telescopic block 2242 pressed tightly against the first groove 2121 is disposed on one side of the second conductive block 2241 . The telescopic principle of the second telescopic block 2242 is the same as that of the first telescopic block 2234 , which will not be described in detail.

[0081] It should be noted that: in the specific implementation process of the present invention, Figure 1-2 As shown, initially, the third conductive rod 214 is disconnected from the fourth conductive rod 216, and the second conductive rod 212 is connected to the first conductive rod 211 through the second conductive block 2241. In this process, the electric energy generated by the photovoltaic panel 210 is sequentially sent to the corresponding energy storage block 111 through the first conductive rod 211, the second conductive block 2241, the second conductive rod 212, and the first shunt rod 213 for storage. When the charging pile 11 charges the car through the charging head 12, the energy storage block 111 transfers the electric energy to the car battery through the wire 113, the transmission block 112, and the charging head 12 in sequence;

[0082] like Figure 3-5 As shown, when the remaining power of the energy storage block 111 is insufficient, the display screen of the charging pile 11 will prompt. At this time, the user rotates the rotating rod 222, and the rotating rod 222 drives the second rotating ring 224 and the first rotating ring 223 to rotate synchronously through the rotating shaft 221. The second rotating ring 224 drives the second conductive block 2241 to separate from the first groove 2121, so that the first conductive rod 211 is disconnected from the second conductive rod 212. At the same time, the first rotating ring 223 drives the first conductive block 2231 to enter the second groove 2141, so that the third conductive rod 214 is connected to the fourth conductive rod 216 through the first conductive block 2231. At this time, the electric energy output by the power supply station is sequentially transmitted to the corresponding charging head 12 through the wire 215, the third conductive rod 214, the first conductive block 2231, the fourth conductive rod 216, and the second shunt rod 217, thereby realizing the comprehensive utilization of photovoltaic power supply and power supply from the power supply station, which is energy-saving and environmentally friendly.

[0083] like Figure 3-, wherein, when the second conductive rod 212 is disconnected from the first conductive rod 211, the electric energy generated by the photovoltaic panel 210 is transferred to the energy storage temporary storage block 2111 through the first conductive rod 211 for temporary storage. When the car is fully charged, the rotating rod 222 is rotated in the opposite direction, so that the second conductive rod 212 is connected to the first conductive rod 211, and the electric energy in the energy storage temporary storage block 2111 is transferred to the energy storage block 111 for storage together with the electric energy generated by the photovoltaic panel 210;

[0084] like Figure 4-6 As shown, the present invention is provided with a tightening spring 2236 on the outer side of the guide shaft 2235. When the first conductive block 2231 rotates from the outside of the second groove 2141 to the inside of the second groove 2141, the limiting block 2233 drives the first telescopic block 2234 to press against the inner side of the second groove 2141 through the pushing force of the tightening spring 2236 on the limiting block 2233, so that the first conductive block 2231 is limited in the second groove 2141, ensuring that the first conductive block 2231 and the third conductive rod 214 and the fourth conductive rod 216 can be in stable contact.

[0085] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic energy storage AC / DC charging integrated device, comprising a mounting frame (100) with a hollow interior, characterized in that: Also includes: A charging unit (1), arranged on one side of the installation frame (100), and used to supply power to the vehicle; A power supply unit (2) comprising a power supply component (21) for supplying power to the charging unit (1), and an adjustment component (22) disposed inside the power supply component (21) for switching a power supply mode; The power supply component (21) comprises a third conductive rod (214) inputting current from a power supply station and a photovoltaic panel (210) installed on the upper end of the installation frame (100) for supplying electric energy to the charging unit (1).

2. A photovoltaic energy storage AC / DC charging integrated device according to claim 1, characterized in that: The charging unit (1) comprises: A plurality of charging piles (11) are provided, which are fixedly connected in sequence to one end of the installation frame (100), and a charging head (12) is provided on one side of the charging pile (11); An air inlet (1001) extends from the lower part of the interior of the installation frame (100) to the interior of the charging pile (11); An air outlet (1002) extends from an upper portion of the interior of the mounting frame (100) to the interior of the charging pile (11); A fan (14) is installed at the air outlet (1002) and is used to dissipate heat inside the charging pile (11).

3. A photovoltaic energy storage AC / DC charging integrated device according to claim 2, characterized in that: An energy storage block (111) for storing electric energy generated by the photovoltaic panel (210) is installed at the bottom of the charging pile (11); A power transmission block (112) is installed at an upper position inside the charging pile (11); the lower end of the power transmission block (112) is electrically connected to the energy storage block (111) via a wire (113) and is used to transmit the electric energy in the energy storage block (111) to the power transmission block (112).

4. A photovoltaic energy storage AC / DC charging integrated device according to claim 3, characterized in that: The power supply component (21) comprises: A first conductive rod (211) extends from the lower end of the photovoltaic panel (210) to the interior of the installation frame (100), wherein a partition (1003) for partitioning the interior of the installation frame (100) into two upper and lower areas is fixedly connected to the middle of the interior of the installation frame (100); A second conductive rod (212) is arranged directly below the first conductive rod (211) and extends from above the partition (1003) to below the partition (1003), and the upper end of the second conductive rod (212) and the upper end of the second conductive rod (212) are both provided with first grooves (2121) corresponding to each other; A plurality of first shunt rods (213) are provided in one-to-one correspondence with the energy storage blocks (111), and are fixedly connected to the side of the second conductive rod (212) and used for shunting the current in the second conductive rod (212) to a plurality of charging piles (11); the other end of the first shunt rod (213) passes through the air inlet (1001) and is electrically connected to the rear side of the energy storage block (111).

5. A photovoltaic energy storage AC / DC charging integrated device according to claim 4, characterized in that: The power supply component (21) further comprises: An electric wire (215), one end of which is connected to the third conductive rod (214) and the other end of which is connected to the power supply station, and is used to input the current of the power supply station into the third conductive rod (214); A fourth conductive rod (216) is fixedly inserted into the installation frame (100), and the lower end of the fourth conductive rod (216) and the upper end of the third conductive rod (214) are both provided with second grooves (2141) corresponding to each other; A plurality of second shunt rods (217) are provided in one-to-one correspondence with the power transmission blocks (112), one end of which is fixedly connected to the side of the fourth conductive rod (216) and the other end of which is electrically connected to the power transmission block (112) for inputting current into the corresponding power transmission blocks (112).

6. A photovoltaic energy storage AC / DC charging integrated device according to claim 5, characterized in that: The adjustment component (22) comprises: A rotating shaft (221) is rotatably connected inside the installation frame (100), and one end of the rotating shaft (221) located outside the installation frame (100) is fixedly connected to a rotating rod (222) for rotationally adjusting the rotating shaft (221); A first rotating ring (223) and a second rotating ring (224) are sequentially fixedly sleeved on the outer side of the rotating shaft (221), wherein the first rotating ring (223) corresponds to the first groove (2121), and the second rotating ring (224) corresponds to the second groove (2141); The first conductive block (2231) is provided with two groups and is fixedly connected to the outside of the first rotating ring (223) in a straight line and is used to be inserted into the first groove (2121) for conducting electricity; The second conductive blocks (2241) are provided with two groups, which are fixedly connected in a straight line to the outer side of the second rotating ring (224) and are used to be inserted into the second groove (2141) for conducting electricity. The projections of the straight line where the first conductive blocks (2231) are located and the straight line where the second conductive blocks (2241) are located along the extension direction of the rotating shaft (221) are perpendicular to each other.

7. A photovoltaic energy storage AC / DC charging integrated device according to claim 6, characterized in that: A retreat groove (2232) is provided in the first conductive block (2231); A limiting block (2233) is slidably inserted inside the retreat groove (2232), and one end of the limiting block (2233) located in the retreat groove (2232) is fixedly connected to a guide shaft (2235); A guide groove (22311) for guiding the guide shaft (2235) is provided inside the first conductive block (2231) and located on one side of the retreat groove (2232); A first telescopic block (2234) is provided on the outside of the guide shaft (2235) and inside the retreat groove (2232) for tightening the limit block (2233), one end of which is fixedly connected to the limit block (2233) and the other end of which extends from the inside of the retreat groove (2232) to the outside of the first conductive block (2231) and is used for tightening the first conductive block (2231) against the inside of the first groove (2121) to position the first conductive block (2231).

8. A photovoltaic energy storage AC / DC charging integrated device according to claim 7, characterized in that: The first telescopic block (2234) is provided with inclined surfaces (22341) at two corners outside the retreat groove (2232), which are used to guide the first telescopic block (2234) from the outside of the first groove (2121) to the inside of the first groove (2121).

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