Photovoltaic energy-saving electrical control cabinet

Abstract

The present invention provides a photovoltaic energy-saving electrical control cabinet, which relates to the photovoltaic field; it includes a cabinet body; it also includes: a supporting top plate, the supporting top plate is fixedly installed to the top of the cabinet body, and a photovoltaic panel is fixedly installed on the top surface of the supporting top plate; a protective mechanism, the protective mechanism is installed to the front end of the supporting top plate, the protective mechanism includes a reel assembly and a protective belt, the protective belt is driven by the reel assembly, and switches between two states of covering and shielding the top surface of the photovoltaic panel or leaving the top surface of the photovoltaic panel; the end of the protective belt is fixedly connected to a carrier strip, and the bottom of the carrier strip is provided with bristles for brushing and cleaning the top surface of the photovoltaic panel; a cleaning part, the cleaning part is arranged in the carrier strip, and the cleaning part can blow airflow for cleaning into the bristles. Through the setting of the protective mechanism, the protective belt can automatically cover the top surface of the photovoltaic panel or leave the top surface of the photovoltaic panel, which plays a role in protecting the photovoltaic panel in bad weather. At the same time, in daily use, by driving the bristles, the photovoltaic panel can be brushed and cleaned to ensure its cleanliness.

Description

Technical Field

[0001] The invention relates to the field of photovoltaics, and in particular to a photovoltaic energy-saving electrical control cabinet. Background Art

[0002] Photovoltaic energy-saving electrical control cabinet is a key device used for power regulation and control in photovoltaic power generation systems. The cabinet integrates components such as controllers, protectors, switches, and power supplies, and can accurately control and protect photovoltaic power stations according to operating requirements.

[0003] In photovoltaic power generation sites, photovoltaic panels are often laid on the top of photovoltaic energy-saving electrical control cabinets to make full use of the space area in the site; and the cabinet body generally has a certain height. In severe weather such as storms or hail, foreign objects such as sand or hail blown by strong winds may hit the top of the photovoltaic panels and cause damage. The photovoltaic panels located on the ground are relatively low in height and can be protected by manually covering them with protective equipment. However, the photovoltaic panels located on the top of the cabinet body are far from the ground and are difficult to be protected by manually covering them with protective equipment. Summary of the invention

[0004] The present invention provides a photovoltaic energy-saving electrical control cabinet to solve the technical problem that the photovoltaic panel on the top of the cabinet is difficult to protect.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a photovoltaic energy-saving electrical control cabinet, comprising a cabinet body; further comprising: a supporting top plate, the supporting top plate is fixedly installed to the top of the cabinet body, and a photovoltaic panel is fixedly installed on the top surface of the supporting top plate; a protective mechanism, the protective mechanism is installed to the front end of the supporting top plate, the protective mechanism comprises a reel assembly and a protective belt, the protective belt is driven by the reel assembly, and switches between two states of covering and shielding the top surface of the photovoltaic panel or leaving the top surface of the photovoltaic panel; the end of the protective belt is fixedly connected to a carrier strip, and the bottom of the carrier strip is provided with bristles for brushing and cleaning the top surface of the photovoltaic panel; a cleaning part, the cleaning part is arranged in the carrier strip, and the cleaning part can blow an airflow for cleaning into the bristles; a tail cover, the tail cover is arranged at the rear end of the supporting top plate, and a toggle strip is arranged in the tail cover.

[0007] In the present technical solution, by setting up a protective mechanism, the protective belt can automatically cover the top surface of the photovoltaic panel or leave the top surface of the photovoltaic panel, thereby protecting the photovoltaic panel in bad weather. At the same time, in daily use, the photovoltaic panel can be brushed and cleaned by driving the bristles to ensure its cleanliness.

[0008] Preferably, the protection mechanism also includes side frames, retractable rollers, guide rollers, a movable frame, a connecting strip and a reset member; the number of the side frames is two, and the two side frames are fixedly mounted to both sides of the front end of the supporting top plate, the retractable roller and the guide roller are rotatably mounted between the two side frames, a protection belt is wound around the retractable roller, the protection belt bypasses the guide roller, and the end of the protection belt away from the retractable roller is connected to the carrier strip, the top surface of the carrier strip is fixedly connected to a connecting strip, the connecting strip is fixedly connected to a movable frame, and the movable frame is connected to a linear drive mechanism; a reset member is arranged at the end of the retractable roller; the retractable roller and the reset member constitute a retractable winding assembly.

[0009] In this technical solution, the protective belt is retracted and unreeled by means of the retractable roller and the reset member, and the guide roller is used to guide the protective belt. After the protective belt covers the photovoltaic panel, the guide rail and the carrier strip raise the protective belt to maintain a certain distance from the photovoltaic panel.

[0010] Preferably, the linear drive mechanism includes a motor, a nut, a screw and an end frame; both ends of the screw are rotatably connected to the end frames, the end frames are fixedly mounted to the bottom surface of the support top plate, the motor is fixedly connected to the end frame, and the output shaft end of the motor is fixedly connected to one end of the screw, the nut is threadedly mounted on the screw, the nut is fixedly connected to the movable frame, a guide groove is provided on the support top plate, and the movable frame is slidably connected to the guide groove.

[0011] In this technical solution, the linear drive mechanism is used to drive the carrier to move, to pull one end of the protective belt to move, so that the protective belt is released from the retractable roller, or to drive one end of the protective belt to reset, and cooperate with the reset member, so that the retractable roller retracts the protective belt.

[0012] Preferably, the cleaning part includes a cavity arranged in the carrier bar, a plurality of evenly distributed air outlets are opened at the bottom of the carrier bar, and the air outlets are connected to the cavity, a plurality of air inlet nozzles are arranged on one side surface of the carrier bar, and an air injection mechanism is installed on the tail cover, the air injection mechanism includes a plurality of air injection pipes, and the air injection pipes are aligned with the air inlet nozzles.

[0013] In this technical solution, the cleaning part provides air blowing cleaning for the bristles.

[0014] Preferably, the air inlet nozzle includes a short tube, a blocking edge, an inner frame, a first coil spring and a closing disk; one end of the short tube is connected to the cavity in the carrier strip, and a blocking edge is provided at the other end of the short tube. An inner frame is fixedly installed inside the short tube, and the inner frame is elastically connected to a closing disk facing the blocking edge through a first coil spring. The diameter of the closing disk is larger than the inner diameter of the blocking edge, and the diameter of the closing disk is smaller than the inner diameter of the short tube.

[0015] In the present technical solution, the air inlet nozzle is used for air intake. When not in use, the blocking edge is blocked by a sealing disk to prevent foreign matter and dust from entering.

[0016] Preferably, the gas injection mechanism also includes a fixed shell fixedly mounted on the tail cover; a piston is cooperatively mounted inside the fixed shell, and one side of the piston and the inner wall of the fixed shell form an injection chamber, and a plurality of third coil springs are arranged in the gas injection chamber, one end of the third coil spring is fixedly connected to the inner wall of the fixed shell, and the other end of the third coil spring abuts against the piston; the piston is fixedly connected to one end of the gas injection pipe, and a second one-way valve is arranged at the end of the gas injection pipe connected to the piston, and a port of the second one-way valve is connected to the gas injection chamber; the gas injection pipe passes through a through hole provided on the side wall of the fixed shell, and the gas injection pipe extends to the outside of the fixed shell; a first one-way valve is installed at the bottom of one side of the fixed shell, and a port of the first one-way valve is connected to the gas injection chamber; a push rod is fixedly mounted on the end of the gas injection pipe away from the second one-way valve.

[0017] In the present technical solution, the gas injection mechanism is used to inject gas into the cleaning part for cleaning.

[0018] Preferably, the tail cover is connected to the rear side of the supporting top plate by mounting bolts, and a dust box is fixedly installed in the tail cover, one side of the dust box is in contact with the side wall of the photovoltaic panel, and the top opening of the dust box is flush with the top surface of the photovoltaic panel; the toggle bar is fixedly installed to the top opening of the dust box.

[0019] In this technical solution, the tail cover can be disassembled by installing bolts, so that it is convenient to remove it from the top of the cabinet and manually remove the internal dust.

[0020] Preferably, a sealing mechanism is further included, which is arranged in a cavity in the carrier strip, and includes a vertical rod and a second coil spring; the vertical rod is connected to the second guide hole opened on the connecting strip with a gap fit, and a sealing ring is arranged in the second guide hole, the bottom end of the vertical rod is fixedly connected to a movable strip, the movable strip is provided with a plurality of equally spaced air grooves, and a plurality of sealing plugs adapted to the air outlet are fixedly installed at the bottom of the movable strip, a fixed disk is fixedly installed on the vertical rod, the second coil spring is sleeved on the vertical rod, and the top and bottom ends of the second coil spring are respectively abutted against the connecting strip and the fixed disk.

[0021] In the technical solution, when the cleaning part is not in operation, the air outlet is sealed by a sealing mechanism to prevent foreign matter and dust from entering.

[0022] Preferably, it also includes a walking rod, both ends of which are bent downward, and the bent portion of the walking rod is loosely connected to the first guide holes provided at both ends of the connecting strip, and the top end of the vertical rod is fixedly connected to the walking rod.

[0023] Preferably, it also includes an elevated bar, which is fixedly installed to the rear end of the supporting top plate, a ramp inclined surface is provided on one side of the elevated bar, and an elevated plane parallel to the top surface of the supporting top plate is provided on the elevated bar, the top surface of the supporting top plate, the ramp inclined surface and the elevated plane form a walking surface, and the walking surface abuts against the bottom end of the bent portion of the walking rod.

[0024] In the technical solution, the walking rod walks on the walking surface, and when it walks to the elevated plane, the sealing mechanism can automatically open the air outlet, and when it returns to the top surface of the supporting top plate, the sealing mechanism can close the air outlet.

[0025] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0026] The positive progressive effect of the present invention is that: the photovoltaic energy-saving electrical control cabinet proposed above, wherein the supporting top plate provides a fixed installation for the photovoltaic panel, and through the setting of the reeling and unreeling assembly and the protective belt in the protective mechanism, in bad weather, by automatically unreeling the protective belt, the protective belt is used to cover and protect the photovoltaic panel, which can prevent the top surface of the photovoltaic panel from being directly hit by objects such as sand, gravel, and hail, thereby reducing the possibility of damage to the photovoltaic panel; further, through the setting of the bristles, when there is dirt and dust on the surface of the photovoltaic panel, the protective mechanism can drive the bristles to move The bristles are used to brush the top surface of the photovoltaic panel to provide automatic cleaning, so as to restore the cleanliness of the surface of the photovoltaic panel and ensure the use effect of the photovoltaic panel; further, a cleaning part is provided in the carrier strip provided for installing the bristles, and after the bristles are brushed, the cleaning part blows air into the bristles, and the dirt trapped in the bristles can be blown out through the air flow to provide cleaning. At the same time, a toggle bar is provided, and when the bristles leave the photovoltaic panel and pass back and forth on the toggle bar, the bristles can be toggled to provide cleaning, and the cleanliness of the bristles is ensured by the cleaning part and the toggle bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic structural diagram of the top of the supporting top plate of the present invention.

[0029] Figure 3 For the present invention Figure 2 Schematic diagram of the structure with the A part in the middle enlarged.

[0030] Figure 4 For the present invention Figure 2 Schematic diagram of the structure with the B part enlarged.

[0031] Figure 5 It is a schematic structural diagram of the bottom of the supporting top plate of the present invention.

[0032] Figure 6 It is a schematic diagram of the structure of one side of the movable frame and the interior of the carrier bar of the present invention.

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the structure enlarged in the middle C part.

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure inside the tail cover of the present invention.

[0035] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure with the D part enlarged.

[0036] Fig.10 It is a schematic structural diagram of the heightening bar, dust collecting box, shifting bar and air injection mechanism of the present invention.

[0037] Fig.11 It is a schematic diagram of the structure of the air inlet nozzle of the present invention when it is in an open state.

[0038] Fig.12 It is a schematic structural diagram of the reset member and the retractable roller of the present invention.

[0039] Description of Reference Numerals

[0040] 1. Cabinet;

[0041] 2. Support top plate; 201. Guide groove;

[0042] 3. Photovoltaic panels;

[0043] 4. Protective mechanism; 401. Side frame; 402. Retractable roller; 403. Guide roller; 404. Protective belt; 405. Movable frame; 406. Carrier strip; 407. Connecting strip; 4071. First guide hole; 4072. Second guide hole; 408. Reset member;

[0044] 5. Tail cover; 501. Mounting bolts;

[0045] 6. Brush the hair;

[0046] 7. air inlet nozzle; 701. short tube; 702. retaining edge; 703. inner frame; 704. first coil spring; 705. sealing disk;

[0047] 8. Linear drive mechanism; 801. Motor; 802. Nut; 803. Screw; 804. End bracket;

[0048] 9. Walking pole;

[0049] 10. Sealing mechanism; 1001. Vertical rod; 1002. Fixed plate; 1003. Second coil spring; 1004. Movable strip; 1005. Sealing plug; 1006. Ventilation groove;

[0050] 11. gas injection mechanism; 1101. gas injection pipe; 11011. push rod; 1102. fixed shell; 1103. piston; 1104. third coil spring; 1105. first one-way valve; 1106. second one-way valve;

[0051] 12. Dust box;

[0052] 13. Toggle bar;

[0053] 14. Elevated strip; 1401. Ramp slope. DETAILED DESCRIPTION

[0054] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0055] like Figure 1-Figure 12 As shown, the photovoltaic energy-saving electrical control cabinet includes a cabinet body 1; it also includes: a supporting top plate 2, the supporting top plate 2 is fixedly installed to the top of the cabinet body 1, and the top surface of the supporting top plate 2 is fixedly installed with a photovoltaic panel 3; a protective mechanism 4, the protective mechanism 4 is installed to the front end of the supporting top plate 2, the protective mechanism 4 includes a reel assembly and a protective belt 404, the protective belt 404 is driven by the reel assembly, and switches between two states of covering and shielding the top surface of the photovoltaic panel 3 or leaving the top surface of the photovoltaic panel 3; the end of the protective belt 404 is fixedly connected to a carrier strip 406, and the bottom of the carrier strip 406 is provided with bristles 6 for brushing and cleaning the top surface of the photovoltaic panel 3; a cleaning part, the cleaning part is arranged in the carrier strip 406, and the cleaning part can blow an airflow for cleaning into the bristles 6; a tail cover 5, the tail cover 5 is arranged at the rear end of the supporting top plate 2, and a toggle strip 13 is arranged in the tail cover 5.

[0056] like Figure 2 , Figure 3 as well as Figure 5 As shown, as a specific technical solution, the protection mechanism 4 also includes a side frame 401, a retracting roller 402, a guide roller 403, a movable frame 405, a connecting strip 407 and a reset member 408; the number of the side frames 401 is two, and the two side frames 401 are fixedly installed to the front ends of the supporting top plate 2, the retracting roller 402 and the guide roller 403 are both rotatably installed between the two side frames 401, a protection belt 404 is wound around the retracting roller 402, the protection belt 404 bypasses the guide roller 403, and the end of the protection belt 404 away from the retracting roller 402 is connected to the carrier strip 406, the top surface of the carrier strip 406 is fixedly connected with a connecting strip 407, the connecting strip 407 is fixedly connected with the movable frame 405, and the movable frame 405 is connected with a linear drive mechanism 8; a reset member 408 is provided at the end of the retracting roller 402; the retracting roller 402 and the reset member 408 constitute a retracting and unwinding assembly.

[0057] The linear drive mechanism 8 includes a motor 801, a nut 802, a screw 803 and an end frame 804; both ends of the screw 803 are rotatably connected to the end frame 804, and the end frame 804 is fixedly installed on the bottom surface of the support top plate 2. The motor 801 is fixedly connected to the end frame 804, and the output shaft end of the motor 801 is fixedly connected to one end of the screw 803. The nut 802 is threadedly installed on the screw 803, and the nut 802 is fixedly connected to the movable frame 405. A guide groove 201 is opened on the support top plate 2, and the movable frame 405 is slidably connected to the guide groove 201.

[0058] Figure 2 , Figure 3 as well as Figure 5 In the state shown, the protection tape 404 is in a rolled-up state and does not cover the top surface of the protective photovoltaic panel 3. At this time, the photovoltaic panel 3 is in normal use.

[0059] In bad weather, the motor 801 drives the screw 803 to rotate forward, and cooperates with the guidance provided by the movable frame 405 and the guide groove 201 to move the nut 802, the movable frame 405, the connecting strip 407 and the carrier strip 406 toward the tail cover 5. The carrier strip 406 pulls one end of the protective belt 404 to release the protective belt 404 from the retractable roller 402 to cover the top surface of the photovoltaic panel 3. After covering, the protective belt 404 located above the top surface of the photovoltaic panel 3 is supported by the guide roller 403 and the carrier strip 406, so that a certain distance is maintained between the protective belt 404 and the photovoltaic panel 3. When foreign objects such as sand, gravel, and hail hit the protective belt 404, it will not cause damage to the top surface of the photovoltaic panel 3, thereby playing a protective role.

[0060] When the retractable roller 402 releases the protective belt 404, the retractable roller 402 rotates and twists the reset member 408 to store force. When the motor 801 drives the screw rod 803 to rotate in the opposite direction and the protective belt 404 is reset by the carrier strip 406, the reset member 408 provides drive for the retractable roller 402, and the retractable roller 402 rewinds the protective belt 404 to restore the protective belt 404 to the state as shown in FIG. Figure 2-Figure 3 Status shown.

[0061] The reset member 408 is a spring. The motor 801 is preferably a servo motor 801 .

[0062] The protective belt 404 is made of high-strength fiber, such as nylon.

[0063] like Figure 1 In a specific implementation, the supporting top plate 2 is tilted, and two supporting top plates 2 and photovoltaic panels 3 are used to form a symmetrical arrangement.

[0064] During daily use, the surface of the photovoltaic panel 3 is cleaned and maintained daily by driving the carrier bar 406 to approach the tail cover 5, and the bristles 6 under the carrier bar 406 brush the top surface of the photovoltaic panel 3, and the dirt on the top surface of the photovoltaic panel 3 is brushed into the dust collection box 12 to achieve automatic cleaning.

[0065] Furthermore, a cleaning portion is provided for cleaning the bristles 6 after brushing.

[0066] like Figure 6-Figure 10 As shown, the cleaning part includes a cavity arranged in the carrier bar 406, a plurality of evenly distributed air outlets are opened at the bottom of the carrier bar 406, and the air outlets are connected to the cavity, a plurality of air inlet nozzles 7 are arranged on one side surface of the carrier bar 406, and an air injection mechanism 11 is installed on the tail cover 5, and the air injection mechanism 11 includes a plurality of air injection pipes 1101, and the air injection pipes 1101 are aligned with the air inlet nozzles 7.

[0067] The air inlet nozzle 7 includes a short tube 701, a retaining edge 702, an inner frame 703, a first coil spring 704 and a sealing disk 705; one end of the short tube 701 is connected to the cavity in the carrier strip 406, and the other end of the short tube 701 is provided with a retaining edge 702. The inner frame 703 is fixedly installed inside the short tube 701, and the inner frame 703 is elastically connected to a sealing disk 705 facing the retaining edge 702 through the first coil spring 704. The diameter of the sealing disk 705 is larger than the inner diameter of the retaining edge 702, and the diameter of the sealing disk 705 is smaller than the inner diameter of the short tube 701.

[0068] The gas injection mechanism 11 also includes a fixed shell 1102 fixedly mounted on the tail cover 5; a piston 1103 is mounted inside the fixed shell 1102, and a side surface of the piston 1103 and the inner wall of the fixed shell 1102 form a gas injection cavity, and a plurality of third coil springs 1104 are arranged in the gas injection cavity, one end of the third coil spring 1104 is fixedly connected to the inner wall of the fixed shell 1102, and the other end of the third coil spring 1104 is in contact with the piston 1103; the piston 1103 is fixedly connected to one end of the gas injection pipe 1101, and A second one-way valve 1106 is provided at one end of the gas injection pipe 1101 connected to the piston 1103, and a port of the second one-way valve 1106 is connected to the gas injection chamber; the gas injection pipe 1101 passes through a through hole provided on the side wall of the fixed shell 1102, and the gas injection pipe 1101 extends to the outside of the fixed shell 1102; a first one-way valve 1105 is installed at the bottom of one side of the fixed shell 1102, and a port of the first one-way valve 1105 is connected to the gas injection chamber; a push rod 11011 is fixedly installed at one end of the gas injection pipe 1101 away from the second one-way valve 1106.

[0069] After the bristles 6 have brushed the top surface of the photovoltaic panel 3, the carrier strip 406 drives the bristles 6 to continue to move into the rear cover 5, the air inlet nozzle 7 approaches the air injection mechanism 11, and the end of the air injection pipe 1101 fits with the air inlet nozzle 7. Fig.11 As shown, the subsequent carrier strip 406 moves into the tail cover 5 to push the air injection pipe 1101. The air injection pipe 1101 drives the piston 1103 to move, compressing the third coil spring 1104 to reduce the volume of the air injection cavity. The gas in the air injection pipe 1101 passes through the second one-way valve 1106, the air injection pipe 1101, and the air inlet nozzle 7, and then enters the cavity, and is then blown out from the air outlet, providing downward blowing for the bristles 6, blowing away the dirt trapped therein, thereby cleaning the bristles 6.

[0070] When the carrier bar 406 is reset and moves outward from the tail cover 5 , the piston 1103 is reset by the compression force of the third coil spring 1104 , and the outside air enters the air injection cavity through the first one-way valve 1105 .

[0071] Through the above design, the carrier strip 406 moves reciprocatingly inward or outward in the tail cover 5, so that the air injection cavity is reciprocatingly reduced or increased, and air flow is reciprocatingly blown into the bristles 6 to achieve multiple cleaning.

[0072] At the same time, if Fig.10 As shown, there is also a toggle bar 13. During the reciprocating movement of the carrier bar 406, the bristles 6 reciprocate on the toggle bar 13, causing the bristles 6 to deform and toggle to provide cleaning.

[0073] The above design provides a self-cleaning function after the bristles 6 clean the photovoltaic panel 3 .

[0074] In specific implementation, the air inlet nozzle 7 is as follows Fig.11 As shown, when the air inlet nozzle 7 is not connected to the air injection pipe 1101, the sealing plate 705 blocks the blocking edge 702 through the action of the first coil spring 704, forming a seal to prevent dust from entering.

[0075] The gas injection pipe 1101 approaches the gas inlet nozzle 7 until the two are in contact with each other. The gas injection pipe 1101 pushes the sealing plate 705 through the push rod 11011 to separate the sealing plate 705 from the retaining edge 702, thereby removing the blockage and allowing the airflow in the gas injection pipe 1101 to enter the short tube 701.

[0076] It should be noted that, in Fig.10 In the state shown, the third coil spring 1104 is in a compressed state, and the compression elastic force of the third coil spring 1104 is greater than that of Fig.11 In the state shown, the compressive elastic force of the first coil spring 704 ensures that after the gas injection tube 1101 is fitted with the gas inlet nozzle 7, the push rod 11011 can push open the sealing disk 705.

[0077] like Figure 6-Figure 10 As shown, it also includes a sealing mechanism 10, which is arranged in a cavity in the carrier strip 406, and includes a vertical rod 1001 and a second coil spring 1003; the vertical rod 1001 is connected with a second guide hole 4072 opened on the connecting strip 407 by clearance fit, and a sealing ring is arranged in the second guide hole 4072, the bottom end of the vertical rod 1001 is fixedly connected to a movable strip 1004, the movable strip 1004 is provided with a plurality of equally spaced air grooves 1006, and a plurality of sealing plugs 1005 adapted to the air outlet are fixedly installed at the bottom of the movable strip 1004, a fixed disk 1002 is fixedly installed on the vertical rod 1001, the second coil spring 1003 is sleeved on the vertical rod 1001, and the top and bottom ends of the second coil spring 1003 are respectively in contact with the connecting strip 407 and the fixed disk 1002.

[0078] It also includes a walking rod 9, both ends of which are bent downward, and the bent portion of the walking rod 9 is loosely connected to the first guide holes 4071 opened at both ends of the connecting strip 407, and the top of the vertical rod 1001 is fixedly connected to the walking rod 9.

[0079] It also includes an elevated bar 14, which is fixedly installed to the rear end of the supporting top plate 2. A ramp inclined surface 1401 is provided on one side of the elevated bar 14, and an elevated plane parallel to the top surface of the supporting top plate 2 is provided on the elevated bar 14. The top surface of the supporting top plate 2, the ramp inclined surface 1401 and the elevated plane form a walking surface, and the walking surface abuts against the bottom end of the bent portion of the walking rod 9.

[0080] When the cleaning part does not use the bristles 6 for cleaning, the sealing mechanism 10 is used to seal the air outlet of the cleaning part to prevent external dust from entering.

[0081] When the cleaning part is cleaning with the bristles 6, the sealing mechanism 10 opens the air outlet.

[0082] Specifically, when the bristles 6 and the carrier strip 406 have not entered the tail cover 5, the bent portion of the walking rod 9 is in contact with the top surface of the supporting top plate 2, and the sealing plug 1005 blocks the air outlet; when the bristles 6 and the carrier strip 406 enter the tail cover 5, that is, the bristles 6 pass through the top surface of the photovoltaic panel 3 and complete the brushing, the bottom end of the bent portion of the walking rod 9 just moves to the intersection of the ramp inclined surface 1401 and the top surface of the supporting top plate 2, and then the bottom end of the bent portion of the walking rod 9 walks on the ramp inclined surface 1401 and moves to the elevated plane, raising the walking rod 9, and at the same time, the walking rod 9 drives the vertical rod 1001 to move upward, and drives the sealing plug 1005 to leave the air outlet through the movable bar 1004, completing the opening of the air outlet and compressing the second coil spring 1003.

[0083] At the same time, after the air outlet is opened, the air inlet nozzle 7 fits perfectly with the air injection pipe 1101. Fig.11 shown.

[0084] Subsequently, the carrier bar 406 moves back and forth to clean the bristles 6, which causes the bottom end of the bent portion of the walking rod 9 to slide on the elevated plane, keeping the air outlet in an open state.

[0085] When the bottom end of the bent portion of the walking rod 9 returns to the top surface of the supporting top plate 2, the compressive elastic force of the second coil spring 1003 provides a restoring force, and the sealing plug 1005 blocks the air outlet.

[0086] Through the above design, when the bristles 6 are in a non-cleaning state, the air outlet is closed, and when in a cleaning state, the air outlet is automatically opened.

[0087] In a specific implementation, the tail cover 5 is connected to the rear side of the supporting top plate 2 by means of mounting bolts 501, and a dust box 12 is fixedly installed inside the tail cover 5, one side of the dust box 12 is in contact with the side wall of the photovoltaic panel 3, and the top opening of the dust box 12 is flush with the top surface of the photovoltaic panel 3; the toggle bar 13 is fixedly installed to the top opening of the dust box 12.

[0088] The tail cover 5 is installed by means of mounting bolts 501 so as to be detachable, wherein the dust collecting box 12 is used for collecting dust and dirt.

[0089] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A photovoltaic energy-saving electrical control cabinet, comprising a cabinet body (1); characterized in that: Also includes: A supporting top plate (2), the supporting top plate (2) being fixedly mounted to the top of the cabinet (1), and a photovoltaic panel (3) being fixedly mounted on the top surface of the supporting top plate (2); A protection mechanism (4), the protection mechanism (4) being mounted to the front end of the supporting top plate (2), the protection mechanism (4) comprising a reeling assembly and a protection belt (404), the protection belt (404) being driven by the reeling assembly to switch between two states: covering and shielding the top surface of the photovoltaic panel (3) or leaving the top surface of the photovoltaic panel (3); The end of the protective strip (404) is fixedly connected to a carrier strip (406), and the bottom of the carrier strip (406) is provided with bristles (6) for brushing and cleaning the top surface of the photovoltaic panel (3); a cleaning portion, the cleaning portion being arranged in the carrier strip (406), and the cleaning portion being capable of blowing an airflow for cleaning into the bristles (6); A tail cover (5), the tail cover (5) being arranged at the rear end of the supporting top plate (2), and a toggle bar (13) being arranged inside the tail cover (5); The cleaning section comprises a cavity arranged in a carrier bar (406); a plurality of evenly distributed air outlets are provided at the bottom of the carrier bar (406), and the air outlets are connected to the cavity; a plurality of self-opening and self-closing air inlet nozzles (7) are provided on one side surface of the carrier bar (406); an air injection mechanism (11) is installed on the tail cover (5); the air injection mechanism (11) comprises a plurality of air injection pipes (1101), and the air injection pipes (1101) are aligned with the air inlet nozzles (7); A sealing mechanism (10), the sealing mechanism (10) being arranged in a cavity inside the carrier strip (406); The air inlet nozzle (7) comprises a short tube (701), a retaining edge (702), an inner frame (703), a first coil spring (704) and a sealing disk (705); one end of the short tube (701) is in communication with a cavity in the carrier strip (406); the other end of the short tube (701) is provided with a retaining edge (702); the inner frame (703) is fixedly installed inside the short tube (701); the inner frame (703) is elastically connected to a sealing disk (705) facing the retaining edge via a first coil spring (704); the diameter of the sealing disk (705) is greater than the inner diameter of the retaining edge (702), and the diameter of the sealing disk (705) is smaller than the inner diameter of the short tube (701); The sealing mechanism (10) comprises a vertical rod (1001) and a second coil spring (1003); the vertical rod (1001) is connected to a second guide hole (4072) provided on the connecting strip (407) with a clearance fit, and a sealing ring is provided in the second guide hole (4072); the bottom end of the vertical rod (1001) is fixedly connected to a movable strip (1004); the movable strip (1004) is provided with a plurality of equally spaced air-permeable grooves (1006); and a plurality of sealing plugs (1005) adapted to the air outlet are fixedly installed at the bottom of the movable strip (1004); a fixed plate (1002) is fixedly installed on the vertical rod (1001); the second coil spring (1003) is sleeved on the vertical rod (1001), and the top and bottom ends of the second coil spring (1003) are respectively connected to the connecting strip (407). The connecting strip (407) is abutted against the fixing plate (1002); it also includes a walking rod (9), both ends of the walking rod (9) are bent downward, and the bent portion of the walking rod (9) is loosely connected to the first guide holes (4071) provided at both ends of the connecting strip (407), and the top of the vertical rod (1001) is fixedly connected to the walking rod (9); it also includes an elevated strip (14), the elevated strip (14) is fixedly mounted to the rear end of the supporting top plate (2), a ramp inclined surface (1401) is provided on one side of the elevated strip (14), and an elevated plane parallel to the top surface of the supporting top plate (2) is provided on the elevated strip (14), the top surface of the supporting top plate (2), the ramp inclined surface (1401) and the elevated plane form a walking surface, and the walking surface is abutted against the bottom end of the bent portion of the walking rod (9).

2. The photovoltaic energy-saving electrical control cabinet according to claim 1, characterized in that: The protective mechanism (4) further comprises a side frame (401), a retractable roller (402), a guide roller (403), a movable frame (405), a connecting strip (407) and a reset member (408); the number of the side frames (401) is two, and the two side frames (401) are fixedly mounted to both sides of the front end of the supporting top plate (2); the retractable roller (402) and the guide roller (403) are both rotatably mounted between the two side frames (401); a protective belt (404) is wound around the retractable roller (402); The protective belt (404) passes around the guide roller (403), and one end of the protective belt (404) away from the retractable roller (402) is connected to the carrier strip (406), the top surface of the carrier strip (406) is fixedly connected to a connecting strip (407), the connecting strip (407) is fixedly connected to a movable frame (405), and the movable frame (405) is connected to a linear drive mechanism (8); a reset member (408) is provided at the end of the retractable roller (402); the retractable roller (402) and the reset member (408) constitute a retractable winding assembly.

3. The photovoltaic energy-saving electrical control cabinet according to claim 2, characterized in that: The linear drive mechanism (8) comprises a motor (801), a nut (802), a screw rod (803) and an end frame (804); both ends of the screw rod (803) are rotatably connected to the end frame (804), the end frame (804) is fixedly mounted on the bottom surface of the support top plate (2), the motor (801) is fixedly connected to the end frame (804), and the output shaft end of the motor (801) is fixedly connected to one end of the screw rod (803), the nut (802) is threadedly mounted on the screw rod (803), the nut (802) is fixedly connected to the movable frame (405), a guide groove (201) is provided on the support top plate (2), and the movable frame (405) is slidably connected to the guide groove (201).

4. The photovoltaic energy-saving electrical control cabinet according to claim 1, characterized in that: The gas injection mechanism (11) further comprises a fixed shell (1102) fixedly mounted on the tail cover (5); a piston (1103) is mounted in the interior of the fixed shell (1102); a side surface of the piston (1103) and an inner wall of the fixed shell (1102) form a gas injection cavity; a plurality of third coil springs (1104) are arranged in the gas injection cavity; one end of the third coil spring (1104) is fixedly connected to the inner wall of the fixed shell (1102), and the other end of the third coil spring (1104) is in contact with the piston (1103); the piston (1103) is fixedly connected to one end of the gas injection pipe (1101), and A second one-way valve (1106) is provided at one end of the gas injection pipe (1101) connected to the piston (1103), and a port of the second one-way valve (1106) is communicated with the gas injection cavity; the gas injection pipe (1101) passes through a through hole provided on the side wall of the fixed shell (1102), and the gas injection pipe (1101) extends outside the fixed shell (1102); a first one-way valve (1105) is installed at the bottom of one side of the fixed shell (1102), and a port of the first one-way valve (1105) is communicated with the gas injection cavity; a push rod (11011) is fixedly installed at one end of the gas injection pipe (1101) away from the second one-way valve (1106).

5. The photovoltaic energy-saving electrical control cabinet according to claim 1, characterized in that: The tail cover (5) is connected to the rear side of the supporting top plate (2) via mounting bolts (501); a dust box (12) is fixedly mounted inside the tail cover (5); one side of the dust box (12) is in contact with the side wall of the photovoltaic panel (3), and the top opening of the dust box (12) is flush with the top surface of the photovoltaic panel (3); and the toggle bar (13) is fixedly mounted to the top opening of the dust box (12).

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