Pressure relief device of energy storage box

Abstract

The utility model provides a pressure relief device for an energy storage box, and belongs to the technical field of energy storage boxes. Comprising a frame, a sealing plate, a sealing rubber strip, a pressure relief cover plate, an electric push rod, a plastic bolt, an installation support, an electric support and a hinge, the sealing plate is located on the outer side of the frame, a plurality of fixing holes are formed in the periphery of the sealing plate, the frame is formed by welding a plurality of square pipes into a whole, and the sealing plate and the frame are welded to each other; a folded edge is arranged on the inner side of the sealing plate and matched with the sealing rubber strip, the sealing rubber strip is a composite sealing rubber strip, a clamping groove is formed in one end of the sealing rubber strip so that the sealing rubber strip can be matched with the folded edge of the sealing plate, the other end of the sealing rubber strip is in an elastic oval shape and used for sealing, and one end of the pressure relief cover plate is connected with the sealing plate through a hinge to achieve the opening and closing effect. By means of active pressure relief of the electric push rod and forced pressure relief after the plastic bolt is broken, the potential safety hazard that pressure cannot be relieved when a control system breaks down can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage boxes, in particular to a pressure relief device for an energy storage box. Background Art

[0002] Against the backdrop of the "dual carbon" initiative, new energy is developing rapidly. With growing electricity market demand and energy mix upgrades, demand for electrochemical energy storage containers with integrated lithium iron phosphate batteries continues to grow rapidly. In recent years, energy storage containers, as an innovative energy storage solution, have demonstrated numerous advantages, including high energy density, long service life, high integration, easy installation and handling, environmental friendliness, and ease of maintenance. They have broad application prospects and market potential in a variety of fields, including energy supply, grid stability, microgrids, and emergency backup power. With the widespread adoption of energy storage technology, the safety of energy storage systems has become a major concern. While energy storage containers utilize air or liquid cooling to dissipate heat from battery packs, insufficient heat dissipation or equipment failure can still occur. Therefore, an emergency pressure relief device is crucial for ensuring the safety of the energy storage container, enabling effective remote venting, heat dissipation, and emergency pressure relief.

[0003] Currently, most of the pressure relief devices installed on the top of the energy storage box are electric pressure relief devices. This situation is very dependent on the reliability and stability of the electrical system, otherwise there will be a risk of loss of control. In order to solve this drawback, we have invented a new energy storage box pressure relief device based on this. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an energy storage box pressure relief device to solve the existing problems.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A pressure relief device for an energy storage box comprises a frame, a sealing plate, a sealing strip, a pressure relief cover plate, an electric push rod, a plastic bolt, a mounting bracket, an electric bracket and a hinge, wherein the sealing plate is located on the outside of the frame, a plurality of fixing holes are arranged around the sealing plate, the frame comprises a plurality of square tubes welded into a whole, the sealing plate and the frame are welded to each other, a folded edge is arranged on the inner side of the sealing plate to cooperate with the sealing strip, the sealing strip is a composite sealing strip, one end of which has a slot to cooperate with the bent edge of the sealing plate, and the other end is an elastic elliptical shape for sealing, one end of the pressure relief cover plate is connected to the sealing plate by a hinge to achieve the opening and closing effect, the mounting bracket is fixed to the bottom of the pressure relief cover plate by plastic bolts, the electric bracket is fixed to the frame by welding, and an electric push rod is arranged between the mounting bracket and the electric bracket.

[0007] In some examples, a tail connector is fixedly provided at one end of the electric push rod close to the electric bracket, a second rotating shaft is provided between the tail connector and the electric bracket, a second rotating shaft is provided between the electric push rod and the mounting bracket, and the electric push rod is connected to the mounting bracket and the electric bracket through the first rotating shaft and the second rotating shaft.

[0008] Compared with the prior art, the present invention has at least the following beneficial effects:

[0009] When the pressure inside the energy storage box is stable, the pressure relief cover will remain closed. When the pressure inside the energy storage box reaches a certain level, the program can be used to activate the electric push rod, opening the pressure relief cover to complete the pressure relief. After the pressure relief is completed, the program can be used to close the pressure relief cover again. At this time, because the pressure is within the controllable range, when the pressure relief cover is opened and closed, only the weight of the pressure relief cover itself is applied, and the plastic bolts are subjected to little force and do not deform. When the control system inside the energy storage box loses control and the pressure exceeds a certain value, the pressure relief cover is subjected to greater pressure. At this time, the plastic bolts will break, the pressure relief cover opens, and the pressure inside the energy storage box is released, ensuring the safety of the energy storage box. After the pressure inside the energy storage box is under control, the plastic bolts can be replaced to reset the position. The plastic bolts can be customized to different sizes or materials to change their withstanding tensile force, so as to meet the needs of different pressures or different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of a pressure relief device for an energy storage box;

[0012] Figure 2 A bottom view of a pressure relief device for an energy storage box;

[0013] Figure 3 A top view of a pressure relief device for an energy storage box;

[0014] Figure 4 for Figure 3 Cross-section at CC;

[0015] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0016] Figure 6 for Figure 2 Enlarged view of point B in the middle;

[0017] Figure 7 for Figure 4 Enlarged view of point D in the middle;

[0018] Figure 8 for Figure 4 Enlarged view of point E in the middle.

[0019] [reference numerals]

[0020] 1. Frame; 2. Sealing plate; 3. Sealing strip; 4. Pressure relief cover; 5. Electric push rod; 6. Plastic bolts; 7. Mounting bracket; 8. Electric bracket; 9. Hinge; 10. First rotating shaft; 11. Second rotating shaft; 12. Tail connector.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0022] The following describes in detail an energy storage tank pressure relief device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are listed as optimal and preferred embodiments, and those skilled in the art may employ alternative implementations. Furthermore, the accompanying drawings are intended only to further illustrate the embodiments and are not intended to limit the present invention.

[0023] It should be noted that references in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of those skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0024] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0025] It will be understood that the meanings of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes being “on” something with intervening features or layers, and “on” or “over” means not only “on” or “above” something, but also includes being “on” or “above” something with no intervening features or layers.

[0026] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0027] like Figure 1 - Figure 8 As shown, an embodiment of the present invention provides a pressure relief device for an energy storage box, comprising a frame 1, a sealing plate 2, a sealing strip 3, a pressure relief cover plate 4, an electric push rod 5, a plastic bolt 6, a mounting bracket 7, an electric bracket 8 and a hinge 9. The sealing plate 2 is located on the outside of the frame 1. Several fixing holes are provided around the sealing plate 2 for fixing the entire pressure relief device to the energy storage box body. The frame 1 has several square tubes welded into a whole. The sealing plate 2 and the frame 1 are welded to each other. A folded edge is provided on the inner side of the sealing plate 2 to cooperate with the sealing strip 3. The sealing strip 3 is a composite sealing strip 3, one end of which has a card groove to cooperate with the bent edge of the sealing plate 2, and the other end is an elastic elliptical shape for sealing. One end of the pressure relief cover plate 4 is connected to the sealing plate 2 by a hinge 9 to achieve the opening and closing effect. The mounting bracket 7 is fixed to the bottom of the pressure relief cover plate 4 by a plastic bolt 6. The electric bracket 8 is fixed to the frame 1 by welding. An electric push rod 5 is provided between the mounting bracket 7 and the electric bracket 8.

[0028] In some examples, a tail connector 12 is fixedly provided at one end of the electric push rod 5 close to the electric bracket 8, a second rotating shaft 11 is provided between the tail connector 12 and the electric bracket 8, a second rotating shaft 11 is provided between the electric push rod 5 and the mounting bracket 7, and the electric push rod 5 is connected to the mounting bracket 7 and the electric bracket 8 through the first rotating shaft 10 and the second rotating shaft 11. When the pressure in the energy storage box is stable, the pressure relief cover 4 will remain closed. When a certain pressure is reached in the energy storage box, the electric push rod 5 can be started by program control to open the pressure relief cover 4 to complete the pressure relief. After the pressure relief is completed, the pressure relief cover 4 can be closed by program control. At this time, due to the pressure The force is within a controllable range. When the pressure relief cover 4 is opened and closed, only the gravity of the pressure relief cover 4 itself is exerted, and the plastic bolt 6 is subjected to little force and does not deform. When the control system in the energy storage box is out of control and the pressure exceeds a certain value, the pressure relief cover 4 is subjected to greater pressure. At this time, the plastic bolt 6 will break, the pressure relief cover 4 will open, and the pressure in the energy storage box will be released, ensuring the safety of the energy storage box. After the pressure in the energy storage box is controlled, the plastic bolt 6 can be replaced to reset it. The plastic bolt 6 can be customized to different sizes or different materials to change its withstanding tensile force, so as to meet the use under different pressures or different working conditions.

[0029] The technical solution provided by the utility model can effectively solve the safety hazard of being unable to release pressure when a control system fails, through the active pressure relief of the electric push rod and the forced pressure relief after the plastic bolt breaks.

[0030] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. To provide a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention, but those skilled in the art will be able to fully understand this invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0031] Those skilled in the art will understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A pressure relief device for an energy storage box, characterized in that: The invention comprises a frame (1), a sealing plate (2), a sealing strip (3), a pressure relief cover (4), an electric push rod (5), a plastic bolt (6), a mounting bracket (7), an electric bracket (8) and a hinge (9), wherein the sealing plate (2) is located on the outside of the frame (1), a plurality of fixing holes are arranged around the sealing plate (2), the frame (1) is welded with a plurality of square tubes into a whole, the sealing plate (2) and the frame (1) are welded to each other, a folded edge is arranged on the inside of the sealing plate (2) to cooperate with the sealing strip (3), and the sealing strip (3) is a composite sealing strip (3), one end of which has a slot to match the bent edge of the sealing plate (2), and the other end is an elastic elliptical shape for sealing. One end of the pressure relief cover (4) is connected to the sealing plate (2) by a hinge (9) to achieve the opening and closing function. The mounting bracket (7) is fixed to the bottom of the pressure relief cover (4) by a plastic bolt (6). The electric bracket (8) is fixed to the frame (1) by welding. An electric push rod (5) is provided between the mounting bracket (7) and the electric bracket (8).

2. The energy storage box pressure relief device according to claim 1, characterized in that: A tail connector (12) is fixedly provided at one end of the electric push rod (5) close to the electric bracket (8); a second rotating shaft (11) is provided between the tail connector (12) and the electric bracket (8); a second rotating shaft (11) is provided between the electric push rod (5) and the mounting bracket (7); and the electric push rod (5) is connected to the mounting bracket (7) and the electric bracket (8) via the first rotating shaft (10) and the second rotating shaft (11).

Images