CN221042067U - Energy management equipment and photovoltaic system - Google Patents

Abstract

The utility model provides energy management equipment and a photovoltaic system, and relates to the technical field of electrical equipment. The utility model effectively improves the condition that the performance of the controller is reduced and overload derating operation is caused due to overheat.

Description

Energy management equipment and photovoltaic system

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to energy management equipment and a photovoltaic system.

Background

The energy management device is used as an important component of the power station and comprises a controller, a data collector, a circuit breaker, a switch, a power supply and the like, and is used for monitoring, controlling and optimizing the power generation and transmission process. In order to save space and to increase the compactness of the overall structure, the controller is usually attached to the cabinet walls when the energy management device is assembled. However, the energy management device is typically installed outdoors, and changes in the external temperature may have a large effect on the controller. Particularly in a high temperature environment, the temperature of the chassis wall is directly transmitted to the controller due to the fact that the controller is closely attached to the chassis wall, so that the controller can be influenced by overheating, the performance of the controller is reduced, and overload derating operation is caused.

Disclosure of utility model

The utility model solves the technical problem of how to improve the condition that the performance of a controller is reduced and overload derating operation is caused due to overheat.

In one aspect, the utility model provides energy management equipment, which comprises a box body, a supporting structure and a controller, wherein a cavity is formed in the box body, the controller is suspended in the cavity through at least one supporting structure, the supporting structure comprises a support and a first connecting piece arranged on the support, the support is fixedly connected with the box body, and the first connecting piece is fixedly connected with the controller.

Optionally, two support structures are provided, and two opposite ends of the controller are respectively and fixedly connected with the two support structures.

Optionally, the support structure further includes a second connecting piece, the first connecting piece is provided with a first hole structure, the support is provided with a second hole structure, and the second connecting piece is arranged in the first hole structure and the second hole structure in a penetrating manner, so that the first connecting piece is fixedly connected with the support.

Optionally, the first hole structure is a waist-shaped hole or a strip-shaped hole.

Optionally, the support includes first fixed plate, second fixed plate and intermediate plate, the intermediate plate connect in first fixed plate with between the second fixed plate, first fixed plate be used for with case body fixed connection, the unsettled set up of second fixed plate in the cavity is equipped with the second hole structure.

Optionally, the first connecting piece includes first connecting plate and the second connecting plate of mutual angle connection, first connecting plate is equipped with first hole structure, the second connecting plate be used for with controller fixed connection.

Optionally, the support structure further includes a limiting member, the limiting member is fixedly connected with the support, and the limiting member is used for limiting the position of the controller.

Optionally, the locating part includes mounting panel, first limiting plate, second limiting plate and third limiting plate, the mounting panel with support fixed connection, three tip of first limiting plate respectively with the mounting panel the second limiting plate with the third limiting plate is angle connection each other, first limiting plate the second limiting plate with the third limiting plate is used for respectively with the different terminal surface looks butt of controller.

Optionally, the energy management device further comprises a fuse disposed in the cavity and connected in the circuit of the energy management device; and/or the energy management device further comprises a lightning protection device, wherein the lightning protection device is arranged in the cavity and is connected to a circuit of the energy management device.

In another aspect, the utility model provides a photovoltaic system comprising an energy management apparatus as described above.

Compared with the prior art, the utility model has the beneficial effects that:

When the controller of energy management equipment is assembled, firstly, the support of the supporting structure is installed in the cavity of the box body, after the support is fixedly connected with the box body, the controller is connected with the first connecting piece of the supporting structure, at the moment, the controller is suspended in the cavity of the box body through the supporting structure, that is, the outer wall of the controller and the inner wall of the cavity are arranged at intervals, so that when the energy management equipment is installed outdoors, if the external temperature is too high, heat can be transferred to the chassis wall of the box body, and because the controller is suspended in the cavity of the box body, the heat cannot be directly transferred to the controller through the chassis wall, thereby effectively improving the conditions that the performance of the controller is reduced and overload derating operation is caused by overheating.

Drawings

FIG. 1 is an assembled schematic view of a box body, a support structure and a controller according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a supporting structure according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a support structure according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural view of an energy management apparatus according to an embodiment of the present utility model.

Reference numerals illustrate:

1. A case body; 11. a cavity; 2. a support structure; 21. a support; 211. a first fixing plate; 212. an intermediate plate; 213. a second fixing plate; 2131. a second aperture structure; 22. a first connector; 221. a first connection plate; 2211. a first aperture structure; 222. a second connecting plate; 23. a second connector; 24. a limiting piece; 241. a mounting plate; 242. a first limiting plate; 243. a second limiting plate; 244. a third limiting plate; 3. a controller; 4. a fuse; 5. a lightning arrester; 6. a circuit breaker; 7. an optical fiber box; 8. a switch; 9. a power supply; 10. MPLC module; 101. i/0 module.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

Moreover, in the drawings, the Z-axis represents vertical, i.e., up-down position, and the positive direction of the Z-axis (i.e., the arrow of the Z-axis points) represents up, and the negative direction of the Z-axis represents down; the X-axis in the drawing represents the lateral, i.e., left-right, position, and the positive direction of the X-axis (i.e., the arrow pointing along the X-axis) represents the right, and the negative direction of the X-axis represents the left; the Y-axis in the drawing shows the longitudinal direction, i.e., the front-to-back position, and the positive direction of the Y-axis (i.e., the arrow pointing to the Y-axis) shows the front, and the negative direction of the Y-axis shows the back.

It should also be noted that the foregoing Z-axis, X-axis, and Y-axis are meant to be illustrative only and to simplify the description of the present utility model, and are not meant to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 and 2, the energy management apparatus according to the embodiment of the present utility model includes a case body 1, a support structure 2 and a controller 3, wherein a cavity 11 is provided in the case body 1, the controller 3 is suspended in the cavity 11 by at least one support structure 2, the support structure 2 includes a support 21 and a first connecting member 22 provided on the support 21, the support 21 is fixedly connected with the case body 1, and the first connecting member 22 is fixedly connected with the controller 3.

In this embodiment, the shape of the case body 1 may be rectangular, square, trapezoid, etc., and is not limited herein, and is determined according to actual needs. As shown in fig. 1 and 2, the box body 1 is rectangular, a cavity 11 is formed in the box body, the controller 3 is suspended in the cavity 11 through two support structures 2, the support structures 2 comprise a support 21 and a first connecting piece 22 arranged on the support 21, the support 21 is fixedly connected with the box body 1, and the first connecting piece 22 is fixedly connected with the controller 3. Thus, when the controller 3 is assembled, the support 21 of the supporting structure 2 is firstly installed in the cavity 11 of the box body 1, after the support 21 is fixedly connected with the box body 1, the controller 3 is connected with the first connecting piece 22 of the supporting structure 2, at this time, the controller 3 is suspended in the cavity 11 of the box body 1 through the supporting structure 2, that is, the outer wall of the controller 3 is arranged at intervals with the inner wall of the cavity 11, so that when the energy management device is installed outdoors, if the external temperature is too high, heat can be transferred to the chassis wall of the box body 1, and because the controller 3 is suspended in the cavity of the box body 1, the heat cannot be directly transferred to the controller 3 through the chassis wall, thereby effectively improving the conditions that the controller 3 is degraded in performance and causes overload derating operation due to overheat.

In this embodiment, the number of the supporting structures 2 may be one, three, four, or the like, and the number thereof may be changed mainly according to the shape of the controller 3, for example, two supporting structures 2 may be used for supporting when the shape of the controller 3 is a square structure, or three supporting structures 2 may be used for supporting when the shape of the controller 3 is a triangle structure. The method is not limited herein, and depends on the actual requirements.

Optionally, two support structures 2 are provided, and two opposite ends of the controller 3 are fixedly connected with the two support structures 2 respectively.

As shown in fig. 1, the controller 3 has a rectangular parallelepiped structure, and two side walls of the controller 3 in the length direction are fixedly connected with the two support structures 2 respectively. Thus, after the controller 3 is assembled on the supporting structure 2, the two side walls of the controller 3 in the length direction are respectively supported by the corresponding supporting structure 2, so that the space between the inner wall of the cavity 11 and the controller 3 can be effectively controlled, the space utilization rate of the cavity 11 is improved, and the controller 3 can be more stably supported.

In other embodiments, the controller 3 may be fixedly connected to the two support structures 2 through two side walls in the width direction.

Optionally, the support structure 2 further includes a second connecting member 23, the first connecting member 22 is provided with a first hole structure 2211, the support 21 is provided with a second hole structure 2131, and the second connecting member 23 is disposed through the first hole structure 2211 and the second hole structure 2131, so that the first connecting member 22 is fixedly connected with the support 21.

As shown in fig. 3 and 4, the first connection plate 221 (described later) of the first connection member 22 is provided with a first hole structure 2211, the second fixing plate 213 (described later) of the support 21 is provided with a second hole structure 2131, the second hole structure 2131 is a threaded hole, the connection member is a bolt, and the shaft of the connection member passes through the first hole structure 2211 and is in threaded connection with the second hole structure 2131. In this way, a fixed connection of the first connecting piece 22 to the support 21 is achieved.

Further, the first hole structure 2211 is a waist-shaped hole or an elongated hole. The method is not limited herein, and depends on the actual requirements.

As shown in fig. 3 and 4, the first hole structure 2211 is a waist-shaped hole, and the shaft of the connection member passes through the first hole structure 2211 and is screwed with the second hole structure 2131. Thus, when the selected controller 3 becomes smaller in length, the second connecting piece 23 is unscrewed, the two first connecting pieces 22 are urged to move toward each other along the X-axis direction until reaching the appropriate positions, the second connecting piece 23 is screwed again to limit the continued movement of the first connecting pieces 22, and finally the controller 3 is connected with the first connecting pieces 22.

Similarly, when the length of the selected controller 3 becomes larger, the second connecting piece 23 is unscrewed, the two first connecting pieces 22 are urged to move back along the X-axis direction until reaching the proper positions, the second connecting piece 23 is screwed down again to limit the first connecting pieces 22 to move continuously, and finally the controller 3 is connected with the first connecting pieces 22.

Optionally, the support 21 includes a first fixing plate 211, an intermediate plate 212 and a second fixing plate 213, the intermediate plate 212 is connected between the first fixing plate 211 and the second fixing plate 213, the first fixing plate 211 is fixedly connected with the case body 1, and the second fixing plate 213 is suspended in the cavity 11 and is provided with a second hole structure 2131.

In this embodiment, the support 21 is a bending member, and includes a first fixing plate 211, a second fixing plate 213 and an intermediate plate 212 that are integrally formed, where, as shown in fig. 2, the intermediate plate 212 is connected between the first fixing plate 211 and the second fixing plate 213, and the three form a zigzag shape, the first fixing plate 211 is fixedly connected with the box body 1, and the two connecting modes include, but are not limited to, bonding, clamping or screw connection, and the second fixing plate 213 is suspended in the cavity 11, that is, the second fixing plate 213 has a space with the inner wall of the cavity 11, and the space between the second fixing plate 213 and the inner wall of the cavity 11 may be 1cm to 3cm, and meanwhile, the second fixing plate 213 is provided with a second hole structure 2131 along the thickness direction for connecting the second connecting member 23. In this way, the support 21 is connected with the tank body 1 only through the first fixing plate 211, so that the contact area of the support 21 and the tank body 1 is effectively reduced, and the heat conduction area is further reduced; at the same time, the second hole structures 2131 are easily manufactured to be connected with the second connection piece 23.

In other embodiments, the support 21 may be an assembly, i.e., the first fixing plate 211, the second fixing plate 213, and the middle plate 212 are separate plates, and are fixedly connected by bonding, welding, or screwing after the production is completed.

Alternatively, opposite ends of the second fixing plate 213 are respectively connected to the two first fixing plates 211 through the intermediate plate 212.

As shown in fig. 2, the second fixing plate 213 has a rectangular shape, and both ends of the second fixing plate 213 in the width direction are connected to the two first fixing plates 211 through the intermediate plates 212, respectively, that is, the support 21 has a "table" shape as a whole. Thus, the shape of the support 21 in the shape of a Chinese character 'ji' promotes the structure to be more stable, and effectively reduces the probability of deformation of the second fixing plate 213.

Optionally, the first connecting piece 22 includes a first connecting plate 221 and a second connecting plate 222 connected at an angle to each other, the first connecting plate 221 is provided with a first hole structure 2211, and the second connecting plate 222 is used for fixedly connecting with the controller 3.

In this embodiment, the first connecting member 22 is a bending member, and includes two parts, namely a first connecting plate 221 and a second connecting plate 222 which are integrally formed, wherein, as shown in fig. 2, the first connecting plate 221 and the second connecting plate 222 form a zigzag shape, and the first connecting plate 221 is provided with a first hole structure 2211 for the second connecting member 23 to pass through; the second connecting plate 222 is fixedly connected with the controller 3, and the connection manner of the second connecting plate and the controller includes, but is not limited to, bonding, welding or screw connection. In this way, the shape of the first connector 22 is not only convenient for connection with the controller 3, but also simple in structure and convenient for manufacturing.

Optionally, the support structure 2 further includes a limiting member 24, where the limiting member 24 is fixedly connected to the support 21, and the limiting member 24 is used to limit the position of the controller 3.

In this embodiment, when the controller 3 is assembled to the support structure 2, the controller 3 is restrained by the restraining member 24 on the support 21, so that the controller 3 and the support 21 are aligned quickly, and thus installed quickly.

Optionally, the limiting member 24 includes a mounting plate 241, a first limiting plate 242, a second limiting plate 243 and a third limiting plate 244, the mounting plate 241 is fixedly connected with the support 21, three ends of the first limiting plate 242 are respectively connected with the mounting plate 241, the second limiting plate 243 and the third limiting plate 244 in an angle, and the first limiting plate 242, the second limiting plate 243 and the third limiting plate 244 are respectively used for being abutted against different end faces of the controller 3.

In the present embodiment, the shape of the controller 3 is rectangular. The limiting member 24 is a bending member, and includes an integrally formed mounting plate 241, a first limiting plate 242, a second limiting plate 243 and a third limiting plate 244, where, as shown in fig. 2, the mounting plate 241, the first limiting plate 242 and the second limiting plate 243 form a zigzag shape, and the third limiting plate 244 is located at one end of the first limiting plate 242 far away from the first connecting member 22, so, when the controller 3 is assembled, the top end surface of the controller 3 and two side end surfaces perpendicular to each other are respectively abutted against the second limiting plate 243, the first limiting plate 242 and the third limiting plate 244, and at this time, the connection positions of the controller 3 and the first connecting member 22 are aligned for facilitating connection.

In other embodiments, the limiting member 24 may be an assembly, that is, the mounting plate 241, the first limiting plate 242, the second limiting plate 243, and the third limiting plate 244 are separate plates, and are fixedly connected by bonding, welding, or screwing after the production is completed.

Optionally, the energy management device further comprises a fuse 4, the fuse 4 being arranged in the cavity 11 and being connected in the electrical circuit of the energy management device.

In this embodiment, as shown in fig. 5, the energy management apparatus further includes a fuse 4, and the fuse 4 is disposed in the cavity 11 of the tank body 1 and connected to the circuit of the energy management apparatus. In this way, when the power management system has excessive current or voltage input, the circuit in the box can be directly protected by the fuse 4, so that the whole energy management device is prevented from being damaged. If the current and the voltage return to normal, the fuse 4 can automatically return to normal, and the equipment automatically and normally operates.

Optionally, the energy management device further comprises a lightning protection device 5, the lightning protection device 5 being arranged in the cavity 11 and being connected in the electrical circuit of the energy management device.

In this embodiment, as shown in fig. 5, the energy management apparatus further includes a lightning protector 5, and the lightning protector 5 is disposed in the cavity 11 of the tank body 1 and connected to the circuit of the energy management apparatus. In this way, the lightning protection device 5 can enable the energy management equipment to be separated from the photovoltaic system and independently operate, and is also compatible with other photovoltaic products.

In this embodiment, as shown in fig. 5, the energy management apparatus further includes a circuit breaker 6, a fiber box 7, a switch 8, a power supply 9, an MPLC (programmable logic controller) module 10, and an I/O module 101, which are respectively disposed in the cavity 11 of the box body 1, wherein the optical fiber reaches the controller 3 through the switch 8 after being fused by the fiber box 7. When the energy management equipment works, 220V alternating current supplies power to the controller 3 and the 24V power supply 9 through the circuit breaker 6 and the lightning protector 5, and the 24V power supply 9 converts 220Vac into 24Vdc and supplies power to the switch 8, the I/O module 101 and the MPLC module 10; the 800V high voltage power is supplied to the lightning arrester 5 and the I/O module 101 and MPLC module 10 via the fuse 4. Thereby realizing the control of the whole system.

A photovoltaic system of a further embodiment of the present utility model comprises an energy management device as described above.

In this embodiment, the photovoltaic system further includes a photovoltaic power generation device, and the photovoltaic power generation device is electrically connected to the energy management apparatus. In this way, the energy management device is used to monitor, control and optimize the power generation and delivery process during the delivery of electrical energy by the photovoltaic power generation device.

The photovoltaic system of the present utility model has the same beneficial effects as the energy management device described above with respect to the prior art, and thus is not described in detail herein.

The reader will appreciate that in the description of this specification, a description of terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The utility model provides an energy management equipment, its characterized in that, includes case body (1), bearing structure (2) and controller (3), inside cavity (11) that are equipped with of case body (1), controller (3) through at least one bearing structure (2) unsettled set up in cavity (11), bearing structure (2) include support (21) with set up in first connecting piece (22) of support (21), support (21) be used for with case body (1) fixed connection, first connecting piece (22) be used for with controller (3) fixed connection.

2. The energy management device according to claim 1, characterized in that the support structure (2) is provided with two, opposite ends of the controller (3) being fixedly connected with the two support structures (2), respectively.

3. The energy management device of claim 1 or 2, wherein the support structure (2) further comprises a second connection member (23), the first connection member (22) is provided with a first hole structure (2211), the support (21) is provided with a second hole structure (2131), and the second connection member (23) is arranged through the first hole structure (2211) and the second hole structure (2131) such that the first connection member (22) is fixedly connected with the support (21).

4. The energy management device of claim 3, wherein the first aperture structure (2211) is a kidney-shaped aperture or an elongated aperture.

5. The energy management device of claim 3, wherein the support (21) comprises a first fixing plate (211), an intermediate plate (212) and a second fixing plate (213), the intermediate plate (212) being connected between the first fixing plate (211) and the second fixing plate (213), the first fixing plate (211) being adapted to be fixedly connected with the tank body (1), the second fixing plate (213) being suspended in the cavity (11) and being provided with the second hole structure (2131).

6. The energy management device of claim 3, characterized in that the first connection piece (22) comprises a first connection plate (221) and a second connection plate (222) connected at an angle to each other, the first connection plate (221) being provided with the first hole structure (2211), the second connection plate (222) being for a fixed connection with the controller (3).

7. The energy management device according to claim 1, characterized in that the support structure (2) further comprises a stop (24), the stop (24) being fixedly connected with the support (21), the stop (24) being adapted to limit the position of the controller (3).

8. The energy management device of claim 7, wherein the limiting member (24) comprises a mounting plate (241), a first limiting plate (242), a second limiting plate (243) and a third limiting plate (244), the mounting plate (241) is fixedly connected with the support (21), three ends of the first limiting plate (242) are respectively connected with the mounting plate (241), the second limiting plate (243) and the third limiting plate (244) at angles, and the first limiting plate (242), the second limiting plate (243) and the third limiting plate (244) are respectively used for being abutted with different end faces of the controller (3).

9. The energy management device of claim 1, further comprising a fuse (4), the fuse (4) being disposed in the cavity (11) and connected in a circuit of the energy management device; and/or, further comprising a lightning protection device (5), the lightning protection device (5) being arranged in the cavity (11) and being connected in the electrical circuit of the energy management device.

10. A photovoltaic system comprising the energy management apparatus of any one of claims 1 to 9.