Energy storage inverter cabinet structure and energy storage inverter

Abstract

This utility model relates to an energy storage inverter chassis structure, specifically an energy storage inverter chassis structure and an energy storage inverter, including a chassis; the chassis has an open end for an upper cover plate and an open end for a junction box cover plate; the edges of the open ends of the upper cover plate and the junction box cover plate are bent to form a bent portion; it also includes an upper cover plate and a junction box cover plate; the upper cover plate is used to seal the open end of the upper cover plate; the junction box cover plate is used to seal the open end of the junction box cover plate; a connector is used to connect the upper cover plate and the open end of the upper cover plate and the open end of the junction box cover plate; including a self-locking screw; when the upper cover plate and the junction box cover plate are separated from the chassis, the self-locking screw always maintains a movable connection with the rivet (the rivet can limit the displacement distance of the self-locking screw), that is, the self-locking screw is not easy to separate from the junction box cover plate or the chassis, which can avoid the loss of the self-locking screw, avoid causing trouble for the operators, and even avoid the reduction of the protection level of the chassis.

Description

Technical Field

[0001] This utility model relates to an energy storage inverter chassis structure, specifically an energy storage inverter chassis structure and an energy storage inverter. Background Technology

[0002] Energy storage inverters are one of the core devices in home energy storage systems, responsible for energy conversion and management between photovoltaic power generation, battery energy storage, and household electricity consumption. With the rapid development of the photovoltaic and energy storage industry in recent years under the major trend of energy transformation, the cost of using energy storage inverters has also been continuously reduced. Due to their advantages such as light weight, high strength, fast heat dissipation, resistance to deformation, ease of structural design and sheet metal forming, aluminum alloy junction box covers are being used more and more.

[0003] With the rapid development of the photovoltaic and energy storage industry in recent years under the major trend of energy transformation, the market has increasingly higher requirements for the function and appearance of energy storage inverters, especially for residential models. The appearance tends to resemble home appliances, pursuing beauty, elegance, compactness, lightness, economy and practicality. However, most inverters currently use sheet metal welding technology; their cover plates and cabinets are usually connected by screws, which have high connection strength and good aesthetics.

[0004] Many energy storage inverters require opening the junction box cover for power distribution operations or maintenance. However, when the junction box cover is opened, the fastener screws may fall off the cover. In actual field operations, the screws are easily lost, which causes great trouble for the operators, greatly hinders the work efficiency, and may even prevent the cover from being locked due to the loss of screws, thereby reducing the protection level of the chassis and potentially causing electric shock hazards. Utility Model Content

[0005] The purpose of this utility model is to provide an energy storage inverter chassis structure and an energy storage inverter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An energy storage inverter chassis structure and an energy storage inverter, including a chassis; The enclosure has an open end for the upper cover and an open end for the junction box cover; The edges of both the open end of the upper cover plate and the open end of the junction box cover plate are bent to form a bent portion; It also includes an upper cover plate and a junction box cover plate; the upper cover plate is used to seal the open end of the upper cover plate; the junction box cover plate is used to seal the open end of the junction box cover plate; A connector for connecting the upper cover plate to the open end of the upper cover plate and the junction box cover plate to the open end of the junction box cover plate; including a non-removable screw.

[0007] The energy storage inverter chassis structure and energy storage inverter described above: the connecting parts further include a press-fit component, which is fixedly installed on the junction box cover plate and on the bent portion fixedly installed on the open end of the upper cover plate; a press-fit component positioning mounting part that engages with the press-fit component on the junction box cover plate is fixedly installed on the bent portion on the open end of the junction box cover plate; a press-fit component positioning mounting part that engages with the press-fit component on the bent portion at the open end of the upper cover plate is fixedly installed on the upper cover plate; the non-detachable screw is slidably installed on the press-fit component and threadedly engaged with the press-fit component positioning mounting part.

[0008] As described above, the energy storage inverter chassis structure and energy storage inverter: the non-removable screw includes a head, a smooth rod, and a threaded part, wherein the head and the threaded part are fixedly connected by the smooth rod.

[0009] As described above, the energy storage inverter chassis structure and energy storage inverter have the following characteristics: the diameter of the head is larger than the inner diameter of the press-fit member; the diameter of the smooth rod is smaller than the inner diameter of the press-fit member; and the diameter of the threaded part is larger than the inner diameter of the press-fit member.

[0010] The energy storage inverter chassis structure and energy storage inverter described above: the connection end between the optical rod and the threaded part is inclined.

[0011] As described above, the energy storage inverter chassis structure and energy storage inverter have a gasket fixedly installed on the bent portion.

[0012] As described above, the energy storage inverter chassis structure and energy storage inverter are as follows: reinforcing ribs are fixedly installed on both the upper cover plate and the junction box cover plate.

[0013] An energy storage inverter includes the energy storage inverter chassis structure described above.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: when the top cover plate and junction box cover plate are separated from the enclosure, the non-detachable screw always maintains the movable connection of the rivet (the rivet can limit the displacement distance of the non-detachable screw), that is, the non-detachable screw is not easy to separate from the junction box cover plate or enclosure. This setting can avoid the loss of the non-detachable screw, so as to avoid causing trouble to the operators and even avoid the reduction of the protection level of the enclosure; the non-detachable screw and the rivet positioning and mounting part are threadedly engaged; through the threaded engagement, the stability of subsequent connections can be effectively ensured, and the top cover plate and junction box cover plate can be prevented from detaching from the enclosure due to external interference. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the energy storage inverter chassis structure and the energy storage inverter itself.

[0016] Figure 2This is a schematic diagram of the energy storage inverter chassis structure and the internal enclosure of the energy storage inverter.

[0017] Figure 3 for Figure 2 A structural schematic diagram from a cross-sectional perspective.

[0018] Figure 4 for Figure 3 A schematic diagram of the structure at point A in the middle.

[0019] Figure 5 for Figure 2 A structural schematic diagram from another cross-sectional perspective.

[0020] Figure 6 for Figure 5 A schematic diagram of the structure at point B.

[0021] Figure 7 This is a schematic diagram of the energy storage inverter chassis structure and the non-removable screws in the energy storage inverter.

[0022] In the diagram: 1. Box body; 101. Bending section; 2. Top cover plate; 3. Junction box cover; 4. Gaskets; 5. Non-removable screw; 501. Smooth shaft; 502. Threaded section; 503. Head; 6. Reinforce the ribs; 7. Press-fit parts; 8. Positioning and installation part for press-fit parts. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-7 As one embodiment of the present utility model, the energy storage inverter chassis structure includes a chassis 1; The housing 1 has an open end for the upper cover plate and an open end for the junction box cover plate; The edges of the open end of the upper cover plate and the open end of the junction box cover plate are both bent to form a bent portion 101; It also includes an upper cover plate 2 and a junction box cover plate 3; the upper cover plate 2 is used to seal the open end of the upper cover plate; the junction box cover plate 3 is used to seal the open end of the junction box cover plate; A connector for connecting the upper cover plate 2 to the open end of the upper cover plate and the junction box cover plate to the open end of the junction box cover plate; including a non-removable screw 5.

[0025] In this embodiment, the open end of the top cover facilitates the installation of internal control modules, detection modules, energy storage devices and other components; the open end of the junction box cover facilitates wiring connections by installers; and it improves installation efficiency.

[0026] The bending part 101 ensures that the upper cover plate 2 and the open end of the upper cover plate, as well as the junction box cover plate 3 and the open end of the junction box cover plate, are tightly connected, effectively preventing problems such as loose or unstable connections.

[0027] After all components and wiring inside the enclosure 1 are connected, the upper cover 2 and its open end, as well as the junction box cover 3 and its open end, are connected using connectors to protect the internal components. Specifically, by tightening the captive screws 5, the compressive force between the upper cover 2 and its open end bend 101, and between the junction box cover 3 and its open end bend 101, is gradually increased, thus ensuring a tight connection between the enclosure 1 and the upper cover 2 and junction box cover 3.

[0028] Furthermore, when the upper cover plate 2 and the junction box cover plate 3 are separated from the enclosure 1, the non-detachable screw 5 always remains connected to the junction box cover plate 3 or the enclosure 1 (movable connection), that is, the non-detachable screw 5 is not easily separated from the junction box cover plate 3 or the enclosure 1. This setting can prevent the non-detachable screw 5 from being lost, so as to avoid causing trouble to the operators and even avoid the reduction of the protection level of the enclosure.

[0029] As a further embodiment of this utility model, the connector further includes a press-fit component 7, which is fixedly installed on the junction box cover plate 2 and on the bent portion 101 fixedly installed on the open end of the upper cover plate; a press-fit component positioning mounting portion 8, which is sleeved with the press-fit component 7 on the junction box cover plate 2, is fixedly installed on the bent portion 101 on the open end of the junction box cover plate; a press-fit component positioning mounting portion 8, which is sleeved with the press-fit component 7 on the bent portion 101 on the open end of the upper cover plate, is fixedly installed on the upper cover plate 2; the non-detachable screw 5 is slidably installed on the press-fit component 7 and threadedly engaged with the press-fit component positioning mounting portion 8.

[0030] In this embodiment, when connecting the housing 1 with the upper cover plate 2 and the junction box cover plate 3, the positions of the upper cover plate 2 and the junction box cover plate 3 are first adjusted by external force, so that the rivet 7 can slide and cooperate with the rivet positioning mounting part 8; thereby realizing the positioning of the upper cover plate 2 and the junction box cover plate 3, and avoiding the failure of the housing 1 to protect the internal components due to installation position deviation.

[0031] Then, use a tool to tighten the captive screw 5 so that the captive screw 5 engages with the threaded mounting part 8 of the press-fit part. During this process, the captive screw 5 will gradually penetrate into the positioning mounting part 8 of the press-fit part, thereby gradually increasing the pressure between the enclosure 1, the upper cover plate 2, and the junction box cover plate 3, thus ensuring the stability of the connection. Moreover, the threaded engagement can effectively ensure the stability of the subsequent connection and prevent the upper cover plate 2 and the junction box cover plate 3 from separating from the enclosure 1 due to external interference.

[0032] Furthermore, when the upper cover plate 2 and junction box cover plate 3 are separated from the enclosure 1, the non-detachable screw 5 always remains in contact with the rivet 7 (the rivet 7 can limit the displacement distance of the non-detachable screw 5), that is, the non-detachable screw 5 is not easy to separate from the junction box cover plate 3 or the enclosure 1. This setting can prevent the non-detachable screw 5 from being lost, so as to avoid causing trouble to the operators and even avoid the reduction of the protection level of the enclosure.

[0033] As a further embodiment of this utility model, the non-detachable screw 5 includes a head 503, a smooth rod portion 501 and a threaded portion 502, wherein the head 503 and the threaded portion 502 are fixedly connected by the smooth rod portion 501.

[0034] In this embodiment, the head 503 is used for tool engagement, thereby facilitating the tightening of the non-removable screw 5 and effectively improving installation efficiency.

[0035] The smooth rod portion 501 cooperates with the rivet 7 and can move within the rivet 7; the smooth rod portion 501 can drive the threaded portion 502 to rotate.

[0036] The threaded part 502 is threadedly engaged with the positioning and mounting part 8 of the press-fit part.

[0037] The contact engagement between the head 503 and the threaded part 502 and the rivet 7 effectively prevents the junction box cover 3 or the enclosure 1 from separating from the captive screw 5; this feature can prevent the captive screw 5 from being lost, so as to avoid causing trouble for the operators and even avoid reducing the protection level of the enclosure.

[0038] As a further embodiment of this utility model, the diameter of the head 503 is larger than the inner diameter of the press-fit member 7; the diameter of the smooth rod portion 501 is smaller than the inner diameter of the press-fit member 7; and the diameter of the threaded portion 502 is larger than the inner diameter of the press-fit member 7.

[0039] In this embodiment, by using the difference between the diameter of the head 503, the smooth rod 501, and the threaded part 502 and the inner diameter of the press-fit part 7, that is, the head 503 and the threaded part 502 cannot pass through the press-fit part 7, the non-removable screw 5 is always connected to the press-fit part 7. This setting can prevent the non-removable screw 5 from being lost, so as to avoid causing trouble to the operators and even avoid reducing the protection level of the chassis.

[0040] As a further embodiment of this utility model, the connection end between the smooth rod portion 501 and the threaded portion 502 is inclined.

[0041] In this embodiment, the inclined connection between the smooth rod portion 501 and the threaded portion 502 enhances the mechanical strength of the connection between the smooth rod portion 501 and the threaded portion 502, effectively reducing the risk of the captive screw 5 bending, deforming, or even breaking under stress.

[0042] As a further embodiment of this utility model, a gasket 4 is fixedly installed on the bent portion 101.

[0043] In this embodiment, the gasket 4 is made of rubber with a high elastic coefficient. During the connection between the upper cover plate 2 and the junction box cover plate 3 and the enclosure 1, the gasket 4 will be compressed, thereby deforming it under force, which increases the sealing of the connection and improves the stability of the connection, thus enhancing the protection of the internal components by the enclosure structure.

[0044] As a further embodiment of this utility model, reinforcing ribs 6 are fixedly installed on both the upper cover plate 2 and the junction box cover plate 3.

[0045] In this embodiment, the reinforcing rib 6 is used to prevent the upper cover 2 and junction box cover 3 from deforming during locking; thereby improving the mechanical strength of the chassis structure and thus increasing its service life.

[0046] An energy storage inverter includes the energy storage inverter chassis structure described above.

[0047] 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 an energy storage inverter, comprising a chassis (1); characterized in that The box (1) has an open end for the upper cover plate and an open end for the junction box cover plate; The edges of the open end of the upper cover plate and the open end of the junction box cover plate are both bent to form a bent portion (101). It also includes an upper cover plate (2) and a junction box cover plate (3); the upper cover plate (2) is used to seal the open end of the upper cover plate; the junction box cover plate (3) is used to seal the open end of the junction box cover plate; A connector for connecting the upper cover plate (2) to the open end of the upper cover plate and the junction box cover plate to the open end of the junction box cover plate; Including non-removable screws (5).

2. The energy storage inverter cabinet structure of claim 1, wherein, The connector also includes a press-fit part (7), which is fixedly installed on the junction box cover (3) and on the bent part (101) on the open end of the upper cover. A press-fit part positioning installation part (8) that is sleeved with the press-fit part (7) on the junction box cover (3) is fixedly installed on the bent part (101) on the open end of the junction box cover. A press-fit part positioning installation part (8) that is sleeved with the press-fit part (7) on the bent part (101) at the open end of the upper cover is fixedly installed on the upper cover (2). The non-detachable screw (5) is slidably installed on the press-fit part (7) and threadedly engaged with the press-fit part positioning installation part (8).

3. The energy storage inverter cabinet structure of claim 2, wherein, The non-detachable screw (5) includes a head (503), a smooth shaft (501) and a threaded portion (502), wherein the head (503) and the threaded portion (502) are fixedly connected by the smooth shaft (501).

4. The energy storage inverter cabinet structure of claim 3, wherein, The diameter of the head (503) is greater than the inner diameter of the press-fit part (7); the diameter of the smooth rod part (501) is less than the inner diameter of the press-fit part (7); and the diameter of the threaded part (502) is greater than the inner diameter of the press-fit part (7).

5. The energy storage inverter cabinet structure of claim 3, wherein, The connection end between the smooth rod portion (501) and the threaded portion (502) is inclined.

6. The energy storage inverter cabinet structure of claim 1, wherein, A gasket (4) is fixedly installed on the bent part (101).

7. The energy storage inverter cabinet structure of claim 1, wherein, Both the upper cover plate (2) and the junction box cover plate (3) are fixedly installed with reinforcing ribs (6).

8. An energy storage inverter, characterized by, Includes the energy storage inverter chassis structure as described in any one of claims 1-7.

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