Photovoltaic energy storage grid-connected cabinet

Abstract

The utility model relates to the technical field of electric power cabinets, in particular to a photovoltaic energy storage grid-connected cabinet. Comprising a cabinet body, a plurality of inner cabinet doors rotationally installed on the inner side of the front end of the cabinet body, an outer cabinet door rotationally installed at the front end of the cabinet body, a first lock piece installed in the middle of the left side of the front end of the outer cabinet door, a waterproof box installed at the front end of the outer cabinet door and covering the first lock piece, and a first lock catch installed on the inner side of the front end of the cabinet body and matched with the first lock piece. According to the utility model, the original grid-connected cabinet structure is scientifically and rationally improved, the upper and lower sides of the front end of the cabinet door are provided with the second lock piece, the sealing rubber sleeve and the sealing cover, and the second lock catch is arranged in the cabinet body, so that the outer cabinet door can be comprehensively locked at the outer side of the cabinet body in multiple directions; according to the photovoltaic grid-connected cabinet, the outer cabinet door is prevented from being stressed to shake and connecting gaps are prevented from being generated in the outdoor use process, so that the waterproof and dustproof performance of the grid-connected cabinet is improved, the IP54-level protection requirement of outdoor use of the photovoltaic energy storage grid-connected cabinet is met, and meanwhile, the anti-theft effect of the grid-connected cabinet is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power cabinets, and in particular to a photovoltaic energy storage grid-connected cabinet. Background Art

[0002] Photovoltaic grid-connected cabinet is a power interface device used in solar photovoltaic power stations. This device has functions such as power distribution, power metering, protection control, etc. It can integrate the power generated by the solar photovoltaic power generation system into the power grid and provide safe and stable power output. Photovoltaic grid-connected cabinets usually consist of components including photovoltaic inverters, power protection switches, current transformers, power meters, PLC controllers, temperature sensors, communication modules, etc.

[0003] like Figure 5 As shown in the figure, the last generation of photovoltaic energy storage grid-connected cabinets has some shortcomings in actual use: although a sealing strip is also installed inside the outer cabinet door, a single central lock is used to fix the outer cabinet door and the cabinet body, which causes the upper and lower sides of the outer cabinet door to easily shake on the cabinet body and leave a connection gap. Rainwater and dust from the outside can easily enter the cabinet body through the upper and lower sides of the outer cabinet door, causing the power equipment inside the cabinet to get damp, and cannot meet the IP54 protection requirements for outdoor use of photovoltaic energy storage grid-connected cabinets.

[0004] In view of this, it is particularly important to design and manufacture a closed and stable cabinet body and outer cabinet door waterproof connection structure that can be comprehensively waterproof and dustproof, and to apply it to the photovoltaic energy storage grid-connected cabinet structure. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the upper and lower sides of the cabinet door of the traditional photovoltaic energy storage grid-connected cabinet are easily subjected to force and cause shaking, and there is a connection gap during outdoor use, which easily leads to external water vapor and dust entering the cabinet body, and to propose a photovoltaic energy storage grid-connected cabinet.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A photovoltaic energy storage grid-connected cabinet comprises a cabinet body, a plurality of inner cabinet doors rotatably mounted on the inner side of the front end of the cabinet body, an outer cabinet door rotatably mounted on the front end of the cabinet body, a first lock installed on the middle part of the left side of the front end of the outer cabinet door, a waterproof box installed on the front end of the outer cabinet door and covering the first lock, and a first lock buckle installed on the inner side of the front end of the cabinet body and matching with the first lock, wherein a waterproof mechanism for comprehensive rainproof sealing treatment between the cabinet body and the outer cabinet door is arranged between the cabinet body and the outer cabinet door.

[0008] As a further description of the above technical solution:

[0009] The waterproof mechanism includes two second locks symmetrically installed on the upper and lower sides of the front end of the outer cabinet door, a second lock buckle fixed on the inner side of the front end of the cabinet body and matching the second locks, and a sealing portion arranged between the front end opening of the cabinet body and the rear end of the outer cabinet door.

[0010] As a further description of the above technical solution:

[0011] The sealing part includes a U-shaped sealing strip fixed integrally to the outside of the front opening of the cabinet body, a sealing rubber ring installed on the inner side of the outer cabinet door and corresponding to the U-shaped sealing strip, and a U-shaped groove opened at the rear end of the sealing rubber ring and used to accommodate the U-shaped sealing strip.

[0012] As a further description of the above technical solution:

[0013] A sealing rubber sleeve covering the second locking member is installed at the front end of the outer cabinet door, and a sealing cover is detachably installed at the front end of the sealing rubber sleeve.

[0014] As a further description of the above technical solution:

[0015] A reinforcing rib is installed on the rear side of the outer cabinet door.

[0016] As a further description of the above technical solution:

[0017] A limiting portion is arranged between the cabinet body and the lower end of the outer cabinet door to prevent the outer cabinet door from closing after it is opened.

[0018] As a further description of the above technical solution:

[0019] The limiting part includes a limiting rod rotatably installed on the lower side of the front end of the cabinet and facing the outer cabinet door, a limiting slide rail installed on the inner side of the outer cabinet door and facing the limiting rod, an L-shaped slide groove opened on the inner side of the limiting slide rail, and a slide column installed on the outer end of the limiting rod and matching the L-shaped slide groove.

[0020] As a further description of the above technical solution:

[0021] The upper parts of the left end and the right end of the cabinet are fixedly connected with hanging buckles.

[0022] As a further description of the above technical solution:

[0023] The lower end of the cabinet is symmetrically fixedly connected to two ground support frames, and the two ground support frames are symmetrically provided with two mounting holes.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0025] 1. In the utility model, the original grid-connected cabinet structure is scientifically and rationally improved, and a second lock, a sealing rubber sleeve and a sealing cover are arranged on the upper and lower sides of the front end of the cabinet door. At the same time, a second lock buckle is arranged in the cabinet body. After the outer cabinet door is closed, the second lock can be locked first. At this time, the outer cabinet door and the middle area of ​​the cabinet body will be locked together, and then the second locks above and below the outer cabinet door are locked. At this time, the outer cabinet door and the upper and lower parts of the cabinet body will be locked together. This structure can lock the outer cabinet door in multiple directions on the outside of the cabinet body, avoiding the force shaking and connection gap of the outer cabinet door during outdoor use, thereby improving the waterproof and dustproof performance of the grid-connected cabinet, meeting the IP54 protection requirements for outdoor use of photovoltaic energy storage grid-connected cabinets, and indirectly improving the anti-theft effect of the grid-connected cabinet.

[0026] 2. In the utility model, a U-shaped sealing strip is added to the original cabinet body, and a U-shaped groove is opened on the original sealing rubber ring. When the outer cabinet door is closed to the cabinet body, the U-shaped sealing strip will slide into the U-shaped groove of the sealing rubber ring. At this time, the U-shaped sealing strip will be wrapped in multiple directions by the sealing rubber ring. Compared with the original sealing method in which the sealing rubber ring is directly squeezed and fitted to the cabinet body, the sealing contact surface is larger and the sealing effect is better, which effectively reduces the entry of external water vapor and dust into the cabinet body, thereby further improving the waterproof and dustproof sealing effect of the grid-connected cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional front right view schematic diagram of a photovoltaic energy storage grid-connected cabinet proposed by the utility model;

[0028] Figure 2 It is a three-dimensional front left view schematic diagram of the utility model;

[0029] Figure 3 It is a schematic diagram of a 90° folded angle cross-section of a local cabinet body in the utility model;

[0030] Figure 4 It is a partial structural schematic diagram of the cabinet body and the outer cabinet door in the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the previous generation of photovoltaic energy storage grid-connected cabinets in the prior art.

[0032] Legend:

[0033] 1. Cabinet body; 101. Inner cabinet door; 102. First lock buckle; 103. Hanging buckle; 104. Floor support frame; 105. Installation hole; 2. Outer cabinet door; 201. First lock piece; 202. Waterproof box; 203. Reinforcement rib; 3. Second lock piece; 4. Second lock buckle; 5. Sealing rubber sleeve; 501. Sealing cover; 6. U-shaped sealing strip; 7. Sealing rubber ring; 701. U-shaped groove; 8. Limit rod; 801. Sliding column; 9. Limiting slide rail; 901. L-shaped slide groove. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-5 The utility model provides a technical solution: a photovoltaic energy storage grid-connected cabinet, comprising a cabinet body 1, a plurality of inner cabinet doors 101 rotatably mounted on the inner side of the front end of the cabinet body 1, an outer cabinet door 2 rotatably mounted on the front end of the cabinet body 1, a first lock 201 mounted on the middle part of the left side of the front end of the outer cabinet door 2, a waterproof box 202 mounted on the front end of the outer cabinet door 2 and covering the first lock 201, and a first lock buckle 102 mounted on the inner side of the front end of the cabinet body 1 and matching with the first lock 201, and a waterproof mechanism for comprehensive rainproof sealing treatment between the cabinet body 1 and the outer cabinet door 2 is provided between the cabinet body 1 and the outer cabinet door 2.

[0036] Specifically, Figure 1-4 As shown, the waterproof mechanism includes two second locks 3 symmetrically installed on the upper and lower sides of the front end of the outer cabinet door 2, a second lock buckle 4 fixed on the inner side of the front end of the cabinet body 1 and matched with the second lock 3, and a sealing part arranged between the front end opening of the cabinet body 1 and the rear end of the outer cabinet door 2. The sealing part includes a U-shaped sealing strip 6 integrally fixed to the outside of the front end opening of the cabinet body 1, a sealing rubber ring 7 installed on the inner side of the outer cabinet door 2 and corresponding to the U-shaped sealing strip 6, and a U-shaped groove 701 opened at the rear end of the sealing rubber ring 7 and used to accommodate the U-shaped sealing strip 6. The arrangement of the U-shaped sealing strip 6 and the U-shaped groove 701 effectively improves the contact area and sealing effect between the cabinet body 1 and the sealing rubber ring 7. Compared with the original method of squeezing and fitting the cabinet body 1 by the sealing rubber ring 7 itself, the sealing stability is stronger and the waterproof and dustproof are better.

[0037] A sealing rubber sleeve 5 covering the second lock element 3 is installed at the front end of the outer cabinet door 2. A sealing cover 501 is detachably installed at the front end of the sealing rubber sleeve 5. After the sealing cover 501 is closed on the sealing rubber sleeve 5, the second lock element 3 can be wrapped and protected to prevent external moisture and dust from entering the second lock element 3, thereby reducing the occurrence of rust and impurity blockage during the outdoor use of the second lock element 3. When the sealing cover 501 is opened, the key can be used to lock and unlock the second lock element 3.

[0038] A reinforcing rib 203 is installed on the rear side of the outer cabinet door 2 to strengthen the structure of the outer cabinet door 2, thereby improving the bending and impact resistance of the outer cabinet door 2, thereby reducing the connection gap between the cabinet body 1 and the outer cabinet door 2 caused by local force deformation or displacement of the outer cabinet door 2.

[0039] Specifically, Figure 2 and Figure 4 As shown, a limiting part for preventing the outer cabinet door 2 from closing after opening is arranged between the cabinet body 1 and the lower end of the outer cabinet door 2, and the limiting part includes a limiting rod 8 rotatably mounted on the lower side of the front end of the cabinet body 1 and facing the outer cabinet door 2, a limiting slide rail 9 mounted on the inner side of the outer cabinet door 2 and facing the limiting rod 8, an L-shaped slide groove 901 provided on the inner side of the limiting slide rail 9, and a slide column 801 mounted on the outer end of the limiting rod 8 and matching the L-shaped slide groove 901. When the outer cabinet door 2 is opened and closed on the cabinet body 1, the limiting rod 8 is The slide column 801 can slide in the L-shaped slide groove 901 on the limiting slide rail 9. When the outer cabinet door 2 is rotated 90°, the slide column 801 on the limiting rod 8 slides between the horizontal end and the vertical end of the L-shaped slide groove 901. At this time, the slide column 801 is manually adjusted from the horizontal end of the L-shaped slide groove 901 to the vertical end of the L-shaped slide groove 901 to perform the anti-closing limit processing of the outer cabinet door 2 to prevent the outer cabinet door 2 from being subjected to force movement and affecting the equipment installation operation when the operator installs the electrical equipment.

[0040] Specifically, Figure 1-4 As shown, the upper left and right ends of the cabinet 1 are fixedly connected with hanging buckles 103 to facilitate the lifting operation of the cabinet 1. In addition, the lower end of the cabinet 1 is symmetrically fixedly connected with two ground support frames 104, which can support the cabinet 1 to a certain height above the ground, so that the cabinet 1 can be transported and handled conveniently by a forklift. Two mounting holes 105 are symmetrically provided on the two ground support frames 104, which facilitate the mounting and fixing of the support frames 104 to the mounting base surface by fasteners.

[0041] Working principle: When in use, the cabinet body 1 can be fixed on the designated installation base surface through fasteners and the floor support frame 104, and the outer cabinet door 2 can be rotated outward 90°. At this time, the slide column 801 on the limit rod 8 can slide in the L-shaped slide groove 901 of the limit slide rail 9. When the slide column 801 slides to between the horizontal end and the vertical end of the L-shaped slide groove 901, the outer cabinet door 2 is fixed in front of the cabinet body 1 to prevent closing. Then the power equipment can be installed in the cabinet body 1. After the power equipment is installed, After completion, close the inner cabinet door 101 and the outer cabinet door 2 in turn, and lock the first lock piece 201 and the two second lock pieces 3 on the outer cabinet door 2 in turn. At this time, the outer cabinet door 2 will be stably locked at the front end of the cabinet body 1 in multiple directions. At the same time, the U-shaped sealing strip 6 on the cabinet body 1 will slide into the U-shaped groove 701 of the sealing rubber ring 7, and the sealing rubber ring 7 will wrap the U-shaped sealing strip 6 in multiple directions to prevent external moisture and dust from entering the cabinet body 1 through the gap between the cabinet body 1 and the outer cabinet door 2.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic energy storage grid-connected cabinet, comprising a cabinet (1), a plurality of inner cabinet doors (101) rotatably mounted on the inner side of the front end of the cabinet (1), an outer cabinet door (2) rotatably mounted on the front end of the cabinet (1), a first lock (201) mounted on the left middle part of the front end of the outer cabinet door (2), a waterproof box (202) mounted on the front end of the outer cabinet door (2) and covering the first lock (201), and a first lock buckle (102) mounted on the inner side of the front end of the cabinet (1) and matching the first lock (201), characterized in that: A waterproof mechanism is provided between the cabinet body (1) and the outer cabinet door (2) for comprehensive rainproof sealing treatment at the connection between the cabinet body (1) and the outer cabinet door (2); The waterproof mechanism comprises two second lock members (3) symmetrically mounted on the upper and lower sides of the front end of the outer cabinet door (2), a second lock buckle (4) fixed on the inner side of the front end of the cabinet body (1) and matching with the second lock member (3), and a sealing portion arranged between the front end opening of the cabinet body (1) and the rear end of the outer cabinet door (2); The sealing portion comprises a U-shaped sealing strip (6) integrally fixed to the outside of the front end opening of the cabinet body (1), a sealing rubber ring (7) installed on the inside of the outer cabinet door (2) and corresponding to the U-shaped sealing strip (6), and a U-shaped groove (701) provided at the rear end of the sealing rubber ring (7) and used to accommodate the U-shaped sealing strip (6).

2. A photovoltaic energy storage grid-connected cabinet according to claim 1, characterized in that: A sealing rubber sleeve (5) covering the second locking member (3) is installed at the front end of the outer cabinet door (2), and a sealing cover (501) is detachably installed at the front end of the sealing rubber sleeve (5).

3. A photovoltaic energy storage grid-connected cabinet according to claim 1, characterized in that: A reinforcing rib (203) is installed on the rear side of the outer cabinet door (2).

4. A photovoltaic energy storage grid-connected cabinet according to claim 1, characterized in that: A limiting portion is provided between the cabinet body (1) and the lower end of the outer cabinet door (2) for preventing the outer cabinet door (2) from closing after it is opened.

5. A photovoltaic energy storage grid-connected cabinet according to claim 4, characterized in that: The limiting portion comprises a limiting rod (8) rotatably mounted on the lower side of the front end of the cabinet body (1) and facing the outer cabinet door (2), a limiting slide rail (9) mounted on the inner side of the outer cabinet door (2) and facing the limiting rod (8), an L-shaped slide groove (901) provided on the inner side of the limiting slide rail (9), and a slide column (801) mounted on the outer end of the limiting rod (8) and matching the L-shaped slide groove (901).

6. The photovoltaic energy storage grid-connected cabinet according to claim 1, characterized in that: Hanging buckles (103) are fixedly connected to the upper parts of the left and right ends of the cabinet (1).

7. A photovoltaic energy storage grid-connected cabinet according to claim 6, characterized in that: Two floor support frames (104) are symmetrically fixedly connected to the lower end of the cabinet (1), and two installation holes (105) are symmetrically provided on the two floor support frames (104).

Images