A cabinet structure of a photovoltaic inverter

Abstract

The utility model relates to a kind of cabinet structures, specifically a kind of cabinet structure of photovoltaic inverter, including box and cover plate;The first bending part is formed by the bending setting of the open part of box;Second bending part is formed by the bending setting of the two sides of cover plate;The box is slidably connected with the second bending part by the first bending part with the cover plate;Fixed plate is fixedly installed on the cover plate, locking groove is opened on the fixed plate;Limiting part, including the locking plate matched with the locking groove, the locking plate can be positioned to the cover plate after cabinet opening;It further includes locking part, the locking part is used to limit the cover plate after cabinet closure;After cabinet opening, the cover plate is positioned by locking part, without using external support, improve the convenience of cabinet (improve the efficiency of installation and maintenance), and cover plate and box are always connected together, can avoid cover plate loss, damage and lead to the decline of the safety performance of cabinet.

Description

Technical Field

[0001] This utility model relates to a chassis structure, specifically a chassis structure for a photovoltaic inverter. Background Technology

[0002] A photovoltaic inverter chassis is the outer shell or external protective structure of a photovoltaic inverter. It is not just a "box," but a crucial component of the inverter, undertaking multiple important functions and directly affecting the inverter's performance, reliability, and lifespan.

[0003] Common chassis consist of a chassis and a cover. There are various ways to connect the cover and the chassis, such as hinged or sliding connections. Different connection methods are suitable for different environments. For example, hinged connections are suitable for environments with large horizontal spaces, while sliding connections are suitable for environments with large vertical or horizontal spaces.

[0004] When using an inverter in an environment with a large vertical space, the internal components need to be installed by opening the chassis (usually by sliding it upwards to prevent the chassis from opening on its own due to gravity) to ensure that the operating space meets the usage requirements. Under the action of gravity, the cover plate is always driven to slide downwards, and the operator needs to hold it by hand or use external support to fix the cover plate, which reduces the convenience of installation and affects the installation efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a chassis structure for a photovoltaic inverter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A chassis structure for a photovoltaic inverter includes a chassis and a cover plate;

[0008] The opening of the box is bent to form a first bend; the two sides of the cover are bent to form a second bend; the box and the cover are slidably connected through the first bend and the second bend.

[0009] A fixing plate is fixedly installed on the cover plate, and a locking groove is provided on the fixing plate;

[0010] The limiting component includes a locking plate that mates with the locking groove, the locking plate being able to limit the cover plate after the chassis is opened;

[0011] It also includes a locking element for limiting the cover plate after the chassis is closed.

[0012] The photovoltaic inverter chassis structure described above includes: the limiting component further includes a base fixedly installed on the first bending portion; a fixed sleeve is fixedly installed on the base; a sliding sleeve is fitted inside the fixed sleeve; a sliding groove is formed on the fixed sleeve; a slider that slides and engages with the sliding groove is fixedly installed on the sliding sleeve; a rotating rod that is rotatably connected to the base is fitted inside the sliding sleeve; the rotating rod is fixedly connected to the locking plate; a groove group is formed on the rotating rod; a protruding post that slides and engages with the groove group is fixedly installed inside the sliding sleeve; a return spring is wrapped around the rotating rod, and the two ends of the return spring respectively abut against the sliding sleeve and the base.

[0013] The photovoltaic inverter chassis structure as described above: the slot group includes a first straight slot, a first inclined slot, a second straight slot and a second inclined slot; wherein one end of the first straight slot is connected to the first inclined slot, the other end of the first inclined slot is connected to one end of the second straight slot, the other end of the second straight slot is connected to the second inclined slot, and the other end of the second inclined slot is connected to the first straight slot in another set of the slot groups.

[0014] As described above, the chassis structure of the photovoltaic inverter has the following characteristics: the size of the locking groove is slightly larger than the size of the locking plate, and the width of the locking groove is smaller than the length of the locking plate.

[0015] The photovoltaic inverter chassis structure described above includes: the locking component includes a fixing block fixedly installed at the bottom of the first bending part; the fixing block has a fitting groove; a wedge is slidably fitted in the fitting groove; a relief spring is provided in the fitting groove; the two ends of the relief spring respectively abut against the wedge and the fixing block; and the fixing plate has a slot that cooperates with the wedge.

[0016] The photovoltaic inverter chassis structure as described above: the wedge block is inclined on the side near the base and horizontal on the side away from the base.

[0017] The photovoltaic inverter chassis structure described above includes: multiple sets of ventilation holes on the cover plate; and multiple sets of inclined blades that cooperate with the ventilation holes are fixedly installed on the cover plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are: after the chassis is opened, the cover is limited by the locking component, eliminating the need for external support components, which improves the convenience of the chassis (improves the efficiency of installation and maintenance), and the cover is always connected to the chassis, which can prevent the chassis from being lost or damaged, thus avoiding a decrease in the safety performance of the chassis. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the chassis structure of a photovoltaic inverter.

[0020] Figure 2 This is a schematic diagram of the enclosure structure in a photovoltaic inverter.

[0021] Figure 3 This is a schematic diagram of the cover plate in the chassis structure of a photovoltaic inverter.

[0022] Figure 4 for Figure 3 A schematic diagram of the structure at point A in the middle.

[0023] Figure 5 This is a schematic diagram of the limiting component in the chassis structure of a photovoltaic inverter.

[0024] Figure 6 for Figure 5 A schematic diagram of the structure at point B.

[0025] Figure 7 This is a schematic diagram of the locking mechanism in the chassis structure of a photovoltaic inverter.

[0026] In the diagram: 1. Box body; 101. First bend;

[0027] 2. Cover plate; 201. Second bend;

[0028] 3. Base;

[0029] 4. Rotating rod; 401. First straight groove; 402. Second inclined groove; 403. Second straight groove; 404. Second inclined groove;

[0030] 5. Fixed sleeve; 501. Sliding groove;

[0031] 6. Sliding sleeve; 601. Slider; 602. Protruding post;

[0032] 7. Locking plate;

[0033] 8. Fixing block; 801. Fitting groove;

[0034] 9. Wedge block;

[0035] 10. Yield spring;

[0036] 11. Fixing plate; 1101. Locking groove; 1102. Groove opening;

[0037] 12. Return spring. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Please see Figures 1-7 As one embodiment of the present utility model, the chassis structure of the photovoltaic inverter includes a housing 1 and a cover plate 2;

[0040] The opening of the box body 1 is bent to form a first bending portion 101; the two sides of the cover plate 2 are bent to form a second bending portion 201; the box body 1 and the cover plate 2 are slidably connected through the first bending portion 101 and the second bending portion 201.

[0041] A fixing plate 11 is fixedly installed on the cover plate 2, and a locking groove 1101 is provided on the fixing plate 11;

[0042] The limiting component includes a locking plate 7 that cooperates with the locking groove 1101, and the locking plate 7 can limit the cover plate 2 after the chassis is opened;

[0043] It also includes a locking element, which is used to limit the cover plate 2 after the chassis is closed.

[0044] In this embodiment, the first bend 101 and the second bend 201 can enhance the stability of the sliding connection between the cover plate 2 and the housing 1 (increased mechanical strength and increased contact area).

[0045] When the chassis is closed (the cover 2 completely covers the open part of the chassis 1), the cover 2 is limited by the locking device to increase the resistance of the cover 2 sliding on the chassis 1, thereby preventing the chassis from being opened accidentally (e.g., strong wind, violent shaking), thus improving the protection of the internal components of the chassis.

[0046] After applying external force to release the locking member from limiting the cover plate 2, external force is applied to make the cover plate 2 slide vertically upward on the housing 1 (the second bending part 201 slides with the first bending part 101), thereby gradually exposing the opening of the housing 1 (the housing opens).

[0047] During the sliding process of the cover plate 2, the locking plate 7 will pass over the locking groove 1101. After the locking plate 7 passes over the locking groove 1101, the locking plate 7 will rotate, thereby causing the locking plate 7 to be misaligned with the locking groove 1101. At this time, through the squeezing action of the locking plate 7 and the fixing plate 11 (that is, the locking plate 7 limits the cover plate 2), the cover plate 2 can be prevented from sliding down due to gravity, thus making it convenient for operators to install and maintain the components inside the box 1.

[0048] After the chassis is opened, the cover plate 2 is limited by the locking mechanism, eliminating the need for external support components and improving the convenience of the chassis (increasing the efficiency of installation and maintenance). In addition, the cover plate 2 is always connected to the chassis 1, which can prevent the cover plate 2 from being lost or damaged, thus avoiding a decrease in the safety performance of the chassis.

[0049] As a further embodiment of this utility model, the limiting member further includes a base 3 fixedly installed on the first bending portion 101. A fixing sleeve 5 is fixedly installed on the base 3. A sliding sleeve 6 is fitted inside the fixing sleeve 5. A sliding groove 501 is formed on the fixing sleeve 5. A slider 601 that slides and engages with the sliding groove 501 is fixedly installed on the sliding sleeve 6. A rotating rod 4 that is rotatably connected to the base 3 is fitted inside the sliding sleeve 6. The rotating rod 4 is fixedly connected to the locking plate 7. A groove group is formed on the rotating rod 4. A protruding post 602 that slides and engages with the groove group is fixedly installed inside the sliding sleeve 6. A return spring 12 is wrapped around the rotating rod 4. The two ends of the return spring 12 abut against the sliding sleeve 6 and the base 3, respectively.

[0050] In this embodiment, after the locking member releases its limiting effect on the cover plate 2, an external force is applied to drive the cover plate 2 to slide vertically upward, thereby driving the fixing plate 11 to move synchronously, and at this time the locking groove 1101 is aligned with the locking plate 7.

[0051] After the locking plate 7 passes the locking groove 1101, the fixed plate 11 will contact the sliding sleeve 6, and after contact, it will drive the sliding sleeve 6 to slide inward in the fixed sleeve 5 and compress the return spring 12. During this process, the slider 601 will slide in the sliding groove 501. During this process, the protruding post 602 will slide in the groove group, and through the squeezing action of the protruding post 602 on the groove group, it will drive the rotating rod 4 to rotate, thereby driving the locking plate 7 to rotate, so as to release the alignment state between the locking plate 7 and the locking groove 1101.

[0052] After the external force is removed, under the action of the elastic force of the return spring 12 and the gravity of the cover plate 2, the cover plate 2 will slide vertically downward, and the sliding sleeve 6 will slide outward in the fixed sleeve 5. At this time, the protruding post 602 will slide in the groove and drive the rotating rod 4 to continue to rotate by squeezing the groove. When the fixed plate 11 and the locking plate 7 come into contact, the rotating rod 4 rotates 90°, so that the locking plate 7 is perpendicular to the locking groove 1101. At this time, the locking plate 7 supports the fixed plate 11, which can limit the cover plate 2 from sliding downward, thereby limiting the cover plate 2.

[0053] Release of limit process: When the external force is reapplied, the cover plate 2 slides vertically upward. After the external force is removed, the cover plate 2 will slide down on its own due to gravity, thereby driving the locking plate 7 to continue to rotate 90° so that the locking plate 7 and the locking groove 1101 are re-aligned (the locking plate 7 can pass over the locking groove 1101).

[0054] After the chassis is opened, the cover plate 2 is limited by the locking mechanism, eliminating the need for external support components and improving the convenience of the chassis (increasing the efficiency of installation and maintenance). In addition, the cover plate 2 is always connected to the chassis 1, which can prevent the cover plate 2 from being lost or damaged, thus avoiding a decrease in the safety performance of the chassis.

[0055] As a further embodiment of the present invention, the groove group includes a first straight groove 401, a first inclined groove 402, a second straight groove 403, and a second inclined groove 404; wherein one end of the first straight groove 401 is connected to the first inclined groove 402, the other end of the first inclined groove 402 is connected to one end of the second straight groove 403, the other end of the second straight groove 403 is connected to the second inclined groove 404, and the other end of the second inclined groove 404 is connected to the first straight groove 401 in another set of the groove group.

[0056] In this embodiment, as the sliding sleeve 6 slides inward within the fixed sleeve 5, the protruding post 602 first slides in the first straight groove 401 toward the first inclined groove 402, during which the rotating rod 4 does not rotate; then the protruding post 602 slides in the first inclined groove 402 toward the second straight groove 403. At this time, the squeezing action of the protruding post 602 on the first inclined groove 402 causes the rotating rod 4 to rotate at a certain angle.

[0057] During the outward sliding of the sliding sleeve 6 within the fixed sleeve 5, the protruding post 602 will first slide in the second straight groove 403, at which point the rotating rod 4 will not rotate. Then, the protruding post 602 will slide in the second inclined groove 404. During this process, the squeezing action of the protruding post 602 on the second inclined groove 404 will cause the rotating rod 4 to continue to rotate at a certain angle.

[0058] Furthermore, when the protruding post 602 slides from the second inclined groove 404 to the first straight groove 401 in another set of grooves, the rotating rod 4 rotates 90°, and thus the locking plate 7 rotates 90°.

[0059] After the chassis is opened, the cover plate 2 is limited by the locking mechanism, eliminating the need for external support components and improving the convenience of the chassis (increasing the efficiency of installation and maintenance). In addition, the cover plate 2 is always connected to the chassis 1, which can prevent the cover plate 2 from being lost or damaged, thus avoiding a decrease in the safety performance of the chassis.

[0060] As a further embodiment of this utility model, the size of the locking groove 1101 is slightly larger than the size of the locking plate 7, and the width of the locking groove 1101 is smaller than the length of the locking plate 7.

[0061] In this embodiment, the locking groove 1101 is slightly larger than the locking plate 7, allowing the locking plate 7 to pass over the locking groove 1101. When the locking plate 7 rotates 90°, since the length of the locking plate 7 is greater than the length of the locking groove 1101, the locking plate 7 can press against the fixing plate 11. The locking plate 7 supports the fixing plate 11, thus limiting the cover plate 2. This prevents the cover plate 2 from sliding down due to gravity, making it easier for operators to install and maintain the components inside the housing 1.

[0062] As a further embodiment of this utility model, the locking member includes a fixing block 8 fixedly installed at the bottom of the first bending portion 101. The fixing block 8 has a fitting groove 801, a wedge 9 is slidably fitted in the fitting groove 801, and a relief spring 10 is provided in the fitting groove 801. The two ends of the relief spring 10 abut against the wedge 9 and the fixing block 8, respectively. The fixing plate 11 has a slot 1102 that cooperates with the wedge 9.

[0063] As a further embodiment of this utility model, the wedge block 9 is inclined on the side near the base 3 and horizontally on the side away from the base 3.

[0064] In this embodiment, as the cover plate 2 slides vertically downward, the fixing plate 11 will abut against the inclined surface of the wedge block 9. Through the squeezing action of the fixing plate 11 on the wedge block 9, the wedge block 9 can be driven to slide inward in the fitting groove 801 and compress the relief spring 10.

[0065] Then, under the elastic force of the relief spring 10, the wedge 9 will abut against the fixing plate 11. When the wedge 9 is aligned with the slot 1102, the elastic force of the relief spring 10 will drive the wedge 9 to slide outward in the fitting groove 801, so that the wedge 9 enters the slot 1102. Through the squeezing action of the slot 1102 and the horizontally set surface of the wedge 9, the cover plate 2 can be limited, so that the cover plate 2 cannot slide upward, thereby preventing the chassis from being opened accidentally (such as by strong wind or violent shaking), thus improving the protection of the internal components of the chassis.

[0066] As a further embodiment of this utility model, the cover plate 2 has multiple sets of ventilation holes; and multiple sets of inclined blades that cooperate with the ventilation holes are fixedly installed on the cover plate 2.

[0067] In this embodiment, the ventilation holes are used to allow air to circulate between the inside and outside of the chassis. The inclined blades prevent water from entering the chassis through the ventilation holes, thereby avoiding the impact of water on the components inside the chassis.

[0068] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A chassis structure for a photovoltaic inverter, characterized in that, Includes the box body (1) and the cover plate (2); The opening of the box (1) is bent to form a first bent portion (101); the two sides of the cover plate (2) are bent to form a second bent portion (201); the box (1) and the cover plate (2) are slidably connected through the first bent portion (101) and the second bent portion (201); A fixing plate (11) is fixedly installed on the cover plate (2), and a locking groove (1101) is provided on the fixing plate (11). The limiting component includes a locking plate (7) that cooperates with the locking groove (1101), the locking plate (7) being able to limit the cover plate (2) after the chassis is opened; It also includes a locking element, which is used to limit the cover plate (2) after the chassis is closed.

2. The chassis structure of a photovoltaic inverter according to claim 1, characterized in that, The limiting component also includes a base (3) fixedly installed on the first bending part (101), a fixed sleeve (5) fixedly installed on the base (3), a sliding sleeve (6) sleeved inside the fixed sleeve (5), and a sliding groove (501) opened on the fixed sleeve (5); a slider (601) that slides and engages with the sliding groove (501) is fixedly installed on the sliding sleeve (6); a rotating rod (4) that is rotatably connected to the base (3) is sleeved inside the sliding sleeve (6), and the rotating rod (4) is fixedly connected to the locking plate (7); a groove group is opened on the rotating rod (4), and a protruding post (602) that slides and engages with the groove group is fixedly installed inside the sliding sleeve (6); a return spring (12) is wrapped around the rotating rod (4), and the two ends of the return spring (12) respectively abut against the sliding sleeve (6) and the base (3).

3. The chassis structure of a photovoltaic inverter according to claim 2, characterized in that, The groove group includes a first straight groove (401), a first inclined groove (402), a second straight groove (403), and a second inclined groove (404); wherein one end of the first straight groove (401) is connected to the first inclined groove (402), the other end of the first inclined groove (402) is connected to one end of the second straight groove (403), the other end of the second straight groove (403) is connected to the second inclined groove (404), and the other end of the second inclined groove (404) is connected to the first straight groove (401) in another set of the groove group.

4. The chassis structure of a photovoltaic inverter according to claim 2, characterized in that, The size of the locking groove (1101) is slightly larger than the size of the locking plate (7), and the width of the locking groove (1101) is smaller than the length of the locking plate (7).

5. The chassis structure of a photovoltaic inverter according to claim 2, characterized in that, The locking component includes a fixing block (8) fixedly installed at the bottom of the first bending part (101). The fixing block (8) has a fitting groove (801) and a wedge (9) is slidably fitted in the fitting groove (801). A relief spring (10) is provided in the fitting groove (801). The two ends of the relief spring (10) abut against the wedge (9) and the fixing block (8) respectively. The fixing plate (11) has a slot (1102) that cooperates with the wedge (9).

6. The chassis structure of a photovoltaic inverter according to claim 5, characterized in that, The wedge (9) is inclined on the side near the base (3) and horizontal on the side away from the base (3).

7. The chassis structure of a photovoltaic inverter according to claim 1, characterized in that, The cover plate (2) has multiple sets of ventilation holes; and multiple sets of blades with inclined arrangement that cooperate with the ventilation holes are fixedly installed on the cover plate (2).

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