Energy storage container

Abstract

The invention discloses an energy storage container which comprises a container body and an exhaust device, a battery compartment is arranged in the container body, and an exhaust outlet communicated with the battery compartment is formed in the side wall of the container body; the air exhaust device is connected with the box body and located at the air exhaust port, the air exhaust device comprises a first air door, the first air door is rotationally switched between a first position and a second position relative to the side wall, the air exhaust port is closed when the first air door is located at the first position, and the air exhaust port is opened when the first air door rotates from the first position to the second position; and an exhaust channel communicated with the exhaust outlet is formed on the upper side of the first air door. According to the arrangement, the exhaust channel communicated with the exhaust outlet is formed in the upper side of the first air door, combustible gas in the battery compartment is not easily blocked by the first air door when being exhausted from the exhaust outlet, rapid exhaust of the combustible gas is facilitated, and therefore the concentration of the combustible gas in the battery compartment is reduced in time; and the risk of gas explosion of the energy storage container is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and in particular to an energy storage container. Background Technology

[0002] Electrochemical energy storage systems are an important component of new power systems based on new energy sources and a crucial technological means for building a clean, low-carbon, safe, and efficient energy system. Energy storage containers are equipped with battery modules. Under thermal runaway conditions, these modules can generate large amounts of flammable gases such as hydrogen and carbon monoxide. When the concentration of these flammable gases is high, contact with electrical sparks or frictional sparks generated by the equipment inside the energy storage container can easily lead to a gas explosion.

[0003] In related technologies, mainstream energy storage containers are usually equipped with ventilation devices to exhaust combustible gases generated inside. However, the current ventilation devices have poor exhaust effect, and the dampers of some ventilation devices can even block the exhaust airflow, making it impossible to exhaust combustible gases inside the energy storage container in a timely manner. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an energy storage container in which the first air vent, once opened, does not easily obstruct the exhaust airflow, enabling timely discharge of flammable gases from the battery compartment and effectively reducing the risk of gas explosion in the energy storage container.

[0005] An energy storage container according to an embodiment of the present invention includes:

[0006] The enclosure has a battery compartment inside, and the side wall of the enclosure has an exhaust vent that communicates with the battery compartment.

[0007] An exhaust device is connected to the housing and located at the exhaust port. The exhaust device includes a first damper that rotates between a first position and a second position relative to the side wall. When the first damper is in the first position, the exhaust port is closed. When the first damper rotates from the first position to the second position, the exhaust port is opened. An exhaust channel communicating with the exhaust port is formed on the upper side of the first damper.

[0008] The energy storage container according to embodiments of the present invention has at least the following beneficial effects:

[0009] The energy storage container of the present invention includes an exhaust device disposed at an exhaust vent. The exhaust device is equipped with a first damper, which rotates between a first position and a second position to close or open the exhaust vent. When a large amount of combustible gas is generated in the battery compartment, the combustible gas in the battery compartment can be discharged by opening the exhaust vent through the first damper. In the embodiment of the present invention, during the process of the first damper of the exhaust device rotating from the first position to the second position to open the exhaust vent, an exhaust channel communicating with the exhaust vent is formed on the upper side of the first damper. That is, the exhaust vent and the exhaust channel are located on the upper side of the first damper. Compared with the exhaust device damper of the related technology which is set to open upward, the combustible gas in the battery compartment is less likely to be blocked by the first damper when it is discharged from the exhaust vent, which effectively improves the emission efficiency of combustible gas, facilitates the rapid discharge of combustible gas, and thus timely reduces the concentration of combustible gas in the battery compartment, effectively reducing the risk of gas explosion in the energy storage container.

[0010] According to some embodiments of the present invention, when the first damper is in the second position, the first damper is tilted upward relative to the side wall.

[0011] According to some embodiments of the present invention, the exhaust device includes a drive mechanism connected to the first damper;

[0012] The energy storage container also includes a gas detector, which is used to detect the concentration of combustible gas in the battery compartment. When the gas detector detects that the concentration of combustible gas is higher than a preset concentration, it triggers the drive mechanism to drive the first damper to rotate and open the exhaust port.

[0013] According to some embodiments of the present invention, the exhaust device includes a mounting shell and a rotating shaft. The exhaust device is fixed to the housing by the mounting shell. The rotating shaft is rotatably connected to the mounting shell and connected to the first damper. The first damper can rotate relative to the side wall by the rotating shaft. The rotating shaft is connected to the bottom end of the first damper.

[0014] According to some embodiments of the present invention, the exhaust device includes a drive mechanism, the drive mechanism includes a drive motor, the drive motor includes a connecting mechanism and a drive shaft, the drive shaft is drive-connected to the rotating shaft, and the drive shaft is also drive-connected to the output shaft of the drive motor through the connecting mechanism. The connecting mechanism is configured to lock the drive shaft in a first operating condition and to release the lock on the drive shaft in a second operating condition. The first operating condition is that the temperature of the environment where the drive motor is located is lower than a preset temperature, and the second operating condition is that the temperature of the environment where the drive motor is located is higher than the preset temperature.

[0015] According to some embodiments of the present invention, the exhaust device further includes an elastic element fixed to the mounting housing. When the first damper is in the first position, the elastic element is clamped between the first damper and the mounting housing, and the elastic element is in a stored state.

[0016] According to some embodiments of the present invention, the exhaust device includes a mounting shell and a limiting mechanism. The first damper is rotatably connected to the mounting shell, and the limiting mechanism is disposed on the mounting shell. When the first damper rotates relative to the side wall to a set angle, the limiting mechanism cooperates with the first damper to limit the first damper to the set angle.

[0017] According to some embodiments of the present invention, the limiting mechanism includes a limiting rod, one end of which is hinged to the first damper, and the other end of which is slidably connected to the mounting shell. The limiting rod can slide relative to the mounting shell within a set distance, so that the first damper can rotate within the set angle range.

[0018] According to some embodiments of the present invention, the side wall is further provided with an air inlet communicating with the battery compartment, and the energy storage container further includes an air intake device, which is connected to the container body and located at the air inlet; wherein the air inlet is set lower than the exhaust outlet.

[0019] According to some embodiments of the present invention, the air intake device includes a second damper, which moves relative to the side wall to open or close the air inlet. When the second damper opens the air inlet, an air intake channel communicating with the air inlet is formed on the lower side of the second damper, and the second damper is inclined downward relative to the side wall.

[0020] And / or, the air intake device includes a fan for drawing air from outside the housing into the battery compartment through the air inlet and discharging it through the air outlet.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an energy storage container according to an embodiment of the present invention;

[0024] Figure 2 This is a front view of the first air damper of the exhaust device of the energy storage container in an embodiment of the present invention, located in the second position.

[0025] Figure 3 for Figure 2 Side view of the central exhaust system;

[0026] Figure 4 This is a first-view structural schematic diagram of the ventilation device of the energy storage container according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the first air door of the exhaust device of the energy storage container in an embodiment of the present invention, with the first air door in the second position.

[0028] Figure 6 This is a circuit diagram showing the connection between the gas detector, the drive mechanism, and the electronic control module in an embodiment of the present invention.

[0029] Figure 7 A front view of the air inlet of the air inlet device of the energy storage container according to an embodiment of the present invention;

[0030] Figure 8 for Figure 7 Side view of the central air intake device.

[0031] Icon labels:

[0032] 10. Energy storage container; 100. Container body; 110. Side wall; 120. Exhaust vent; 130. Air inlet; 200. Exhaust device; 201. Exhaust passage; 210. First air damper; 220. Mounting shell; 230. Drive mechanism; 231. Drive motor; 232. Drive shaft; 240. Rotating shaft; 250. Limiting mechanism; 251. Limiting rod; 2511. Limiting groove; 252. Limiting post; 300. Air inlet device; 301. Air inlet passage; 310. Second air damper; 320. Fan; 400. Gas detector; 500. Local control button; 600. Electrical control module. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0036] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0037] This invention provides an energy storage container.

[0038] Please refer to Figure 1 The energy storage container 10 includes a container body 100 and an exhaust system 200. The container body 100 contains a battery compartment for housing battery modules, and the side wall 110 of the container body 100 has an exhaust vent 120 communicating with the battery compartment. Generally, battery modules can produce flammable gases such as hydrogen and carbon monoxide under thermal runaway. When the concentration of these flammable gases is high, contact with electrical sparks / friction sparks generated by equipment inside the battery compartment can easily lead to a gas explosion. The exhaust vent 120 allows for the timely removal of flammable gases from the battery compartment as needed.

[0039] The exhaust device 200 is connected to the housing 100 and located at the exhaust port 120. The exhaust device 200 includes a first damper 210, which rotates relative to the side wall 110 between a first position and a second position. In the first position, the first damper 210 closes the exhaust port 120; when rotated from the first position to the second position, the first damper 210 opens the exhaust port 120. Under normal circumstances, the first damper 210 of the exhaust device 200 is in the first position, at which time the first damper 210 closes the exhaust port 120, isolating the battery compartment from the external environment of the housing 100 and preventing dust and moisture from entering the battery compartment. When a large amount of combustible gas is generated in the battery compartment, the first damper 210 is rotated to the second position to open the exhaust port 120, allowing the combustible gas to be discharged from the exhaust port 120.

[0040] In related technologies, the ventilation devices used in most mainstream energy storage containers are designed so that the dampers rotate upwards to open. The dampers are located on the upper side of the exhaust port, which can easily obstruct the exhaust airflow to a certain extent, affecting the exhaust speed of combustible gases. This can result in the inability to exhaust combustible gases from the energy storage container in a timely manner, posing a risk of gas explosion.

[0041] In this regard, in the embodiments of the present invention, please refer to... Figure 1 And refer to Figure 2 and Figure 3During the process of the first damper 210 rotating from the first position to the second position to open the exhaust port 120, an exhaust channel 201 communicating with the exhaust port 120 is formed on the upper side of the first damper 210.

[0042] Therefore, during the process of the first damper 210 rotating from the first position to the second position, the first damper 210 needs to rotate downward relative to the side wall 110 (e.g., Figure 3 (as shown in the rotation direction), when the first damper 210 rotates to the second position, the exhaust port 120 is located on the upper side of the first damper 210, thereby forming an exhaust channel 201 communicating with the exhaust port 120 on the upper side of the first damper 210. In this way, the first damper 210 can guide the airflow, so that the airflow discharged from the exhaust port 120 flows upward along the first damper 210.

[0043] In the energy storage container 10 of this invention, during the process of the first damper 210 of the exhaust device 200 rotating from the first position to the second position to open the exhaust port 120, an exhaust channel 201 communicating with the exhaust port 120 is formed on the upper side of the first damper 210. That is, the exhaust port 120 and the exhaust channel 201 are located on the upper side of the first damper 210. Compared with the exhaust device damper in the related art being set to open upward, the combustible gas in the battery compartment is less likely to be blocked by the first damper 210 when it is discharged from the exhaust port 120, which effectively improves the emission efficiency of combustible gas, facilitates the rapid discharge of combustible gas, and thus timely reduces the concentration of combustible gas in the battery compartment, effectively reducing the risk of gas explosion in the energy storage container 10.

[0044] In some embodiments, when the first damper 210 is in the second position, the first damper 210 is inclined upward relative to the side wall 110. That is, when the first damper 210 moves from the first position to the second position, the first damper 210 rotates downward relative to the side wall 110 at an acute angle.

[0045] As is easily understood, the upward-sloping first damper 210 guides the airflow discharged from the exhaust vent 120 upwards. In practical applications, when the concentration of combustible gas in the battery compartment is high, by opening the exhaust vent 120 with the first damper 210 of the exhaust device 200, the first damper 210 can guide the combustible gas upwards along the exhaust channel 201, making it easier for the combustible gas to move away from the energy storage container 10, rather than lingering near the energy storage container 10, further reducing the risk of gas explosion in the energy storage container 10. Moreover, if a fire or deflagration suddenly occurs in the battery compartment during the process of the exhaust device 200 opening the first damper 210 to discharge combustible gas, the first damper 210 can guide the flame upwards to release the combustion, preventing the open flame from spreading in all directions. Especially when multiple energy storage containers 10 are arranged adjacently, the first damper 210 can prevent the flame from spreading to adjacent energy storage containers 10, avoiding impact on the surrounding energy storage containers 10. Thus, in this embodiment of the invention, the energy storage container 10, by tilting the first air door 210 upward relative to the side wall 110 in the second position, causes the airflow discharged from the exhaust port 120 to flow upward, thereby improving the safety of the energy storage container 10.

[0046] In some embodiments, please refer to Figure 3 When the first damper 210 is in the second position, the angle θ between the first damper 210 and the side wall 110 satisfies: 15°≤θ≤45°.

[0047] It is important to understand that the angle θ between the first damper 210 and the side wall 110 affects the size of the exhaust passage 201. The angle θ cannot be too small. When the angle θ is less than 15°, the exhaust passage 201 formed between the first damper 210 and the side wall 110 is small, which is not conducive to the rapid discharge of combustible gases or the release of pressure within the battery compartment. Conversely, the angle θ cannot be too large. When the angle θ is greater than 45°, although combustible gases can be discharged effectively, if a fire and deflagration occur in the battery compartment, the first damper 210 will have a poor effect on guiding the flames upwards, failing to effectively prevent the flames from spreading forward towards the side wall 110, thus hindering fire control.

[0048] In this embodiment, by tilting the first damper 210 at an angle θ of 15° to 45° relative to the side wall 110 in the second position, a large exhaust channel 201 is formed between the first damper 210 and the side wall 110. This allows the combustible gas in the battery compartment to be discharged quickly, thus reducing the concentration of combustible gas in the battery compartment in a timely manner. At the same time, when a fire and deflagration occur in the battery compartment, the first damper 210 can effectively guide the flame to release combustion upwards, and the first damper 210 has a good blocking effect on the flame within this angle range, which can effectively prevent the flame from spreading to the surrounding areas.

[0049] In one embodiment of the present invention, the included angle θ between the first damper 210 and the side wall 110 is 30°.

[0050] In some embodiments, please refer to Figure 1 and Figure 4 The exhaust device 200 includes a drive mechanism 230 connected to a first damper 210. The drive mechanism 230 can drive the first damper 210 to switch between a first position and a second position. The energy storage container 10 also includes a gas detector 400 for detecting the concentration of combustible gas in the battery compartment. When the gas detector 400 detects that the concentration of combustible gas is higher than a preset concentration, it triggers the drive mechanism 230 to drive the first damper 210 from the first position to the second position to open the exhaust vent 120. In one embodiment, the preset concentration is 10% LEL. The gas detector 400 is a combustible gas detector, such as a hydrogen detector or a carbon monoxide detector. When any gas detector 400 detects that the concentration of any combustible gas is higher than the preset concentration, it can trigger the drive mechanism 230 to drive the first damper 210 to open the exhaust vent 120.

[0051] The energy storage container 10 also includes an electrical compartment, which is equipped with an electronic control module 600. Please refer to [reference needed]. Figure 6 The electronic control module 600 is electrically connected to the drive mechanism 230 and the gas detector 400. The electronic control module 600 may include a power supply and a control board. The power supply provides electrical energy to the drive mechanism 230 and the gas detector 400, and the control board controls the opening and closing of the drive mechanism 230 based on the detection signal fed back by the gas detector 400. Specifically, during the use of the energy storage container 10, when the gas detector 400 detects that the concentration of combustible gas in the battery compartment is higher than a preset concentration, the gas detector 400 sends a corresponding detection signal to the electronic control module 600. The electronic control module 600 outputs a corresponding control signal based on this detection signal, causing the drive mechanism 230 to drive the first damper 210 from a first position to a second position, thereby opening the exhaust vent 120 to promptly remove combustible gas from the battery compartment.

[0052] In this embodiment, by setting a gas detector 400, when the gas detector 400 detects that the concentration of combustible gas in the battery compartment reaches a preset concentration, the exhaust device 200 is activated, which can promptly discharge the combustible gas in the battery compartment to the outside of the housing 100, quickly reduce the concentration of combustible gas in the battery compartment, and effectively reduce the risk of gas explosion in the battery compartment.

[0053] Understandably, the gas detector 400 can also be configured to trigger the drive mechanism 230 to drive the first damper 210 from the second position to the first position to close the exhaust port 120 when it detects that the concentration of combustible gas is lower than the preset concentration.

[0054] Of course, in some implementations, the opening and closing of the first damper 210 can also be manually controlled by an operator. In one embodiment, refer to... Figure 1 As shown, the energy storage container 10 also includes a local control button 500. The local control button 500 is located on the outer surface of the side wall 110 of the container 100. The local control button 500 is electrically connected to the electrical control module 600 in the electrical compartment. The operator can actively press the local control button 500 to trigger the corresponding control signal, thereby controlling the drive mechanism 230 to drive the first air door 210 to open or close the exhaust port 120.

[0055] Please refer to Figure 4 and Figure 5 The exhaust device 200 includes a mounting housing 220 and a rotating shaft 240. The first damper 210 is rotatably connected to the mounting housing 220 via the rotating shaft 240. The drive mechanism 230 is connected to the rotating shaft 240 for transmission. The drive mechanism 230 is used to drive the rotating shaft 240 to rotate so as to drive the first damper 210 to rotate.

[0056] In some embodiments, the drive mechanism 230 includes a drive shaft 232 and a connecting mechanism (blocked and not shown in the figure). The drive shaft 232 is driveably connected to the rotating shaft 240, and the drive shaft 232 is also driveably coupled to the output shaft of the drive motor 231 through the connecting mechanism. The connecting mechanism is configured to lock the drive shaft 232 in a first operating condition and release the lock on the drive shaft 232 in a second operating condition. The first operating condition is when the temperature of the environment where the drive motor 231 is located is lower than a preset temperature, and the second operating condition is when the temperature of the environment where the drive motor 231 is located is higher than the preset temperature.

[0057] The first and second operating conditions correspond to different operating conditions of the energy storage container 10. In practical applications, the first operating condition corresponds to the normal operation of the energy storage container 10, while the second operating condition corresponds to the situation where the battery compartment of the energy storage container 10 catches fire and explodes.

[0058] In one embodiment, the connecting mechanism includes a lead screw, which is connected to the output shaft of the drive motor 231 and is also connected to the drive shaft 232 via a transmission connection. The lead screw is made of plastic and will melt and soften at high temperatures. Under normal conditions, when the drive mechanism 230 is not activated, the lead screw has a self-locking function, which locks the drive shaft 232 onto the lead screw, keeping the drive shaft 232 relatively stationary relative to the output shaft.

[0059] In practical applications, when the drive mechanism 230 has not yet started, but a fire and explosion occur in the battery compartment, the battery compartment generates a very high temperature. The high temperature softens the lead screw between the drive shaft 232 and the output shaft of the drive motor 231, causing the self-locking force between the lead screw and the drive shaft 232 to decrease or disappear. The drive shaft 232 will move under the action of external force. At this time, since the drive mechanism 230 is not started, the first damper 210 is in the closed exhaust port 120 state. The combustion of combustible gas in the battery compartment generates a certain pressure, which acts on the first damper 210 and is transmitted through the rotating shaft 240 to the drive shaft 232. As the lead screw softens at high temperature, the locking force of the lead screw on the drive shaft 232 is reduced or disappears, causing the drive shaft 232 to move relative to the lead screw under pressure. During the movement of the drive shaft 232, it will drive the rotating shaft 240 to rotate, thereby driving the first damper 210 to rotate. In other words, the first damper 210 rotates automatically under the push of air pressure, gradually opening the exhaust port 120. When the first damper 210 just starts to rotate, the gas in the battery compartment rushes out and quickly depressurizes, applying a thrust to the rotating first damper 210, pushing the first damper 210 to continue rotating. At the same time, the first damper 210 is also subject to its own gravity, which makes the first damper 210 rotate to the second position faster and better.

[0060] Thus, by making the above-described configuration of the drive motor 231, the connection mechanism of the drive motor 231 can release the lock on the drive shaft 232 under the second working condition. Utilizing this characteristic of the drive mechanism 230, when a fire and explosion occur inside the battery compartment and the ventilation device 200 has not yet been activated, the first air door 210 can automatically open the exhaust port 120 under the thrust of air pressure and its own gravity, which can release the internal pressure of the energy storage container 10 in a timely manner and further reduce the risk of gas explosion in the energy storage container 10.

[0061] In one embodiment, the rotating shaft 240 is connected to the bottom end of the first damper 210. By connecting the rotating shaft 240 to the bottom end of the first damper 210, instead of the middle of the first damper 210, the center of gravity of the first damper 210 is not on the rotation axis of the first damper 210. The first damper 210 always tends to rotate downwards under the action of gravity. When the drive motor 231 is not started and the battery compartment explodes, the connecting mechanism is released from locking the drive shaft 232 by utilizing the high temperature condition. The first damper 210 can rotate to the second position better under the push of air pressure and its own gravity.

[0062] In some embodiments, the exhaust device 200 further includes an elastic element (not shown in the figure), which is fixed to the mounting housing 220. When the first damper 210 is in the first position, i.e., when the first damper 210 closes the exhaust port 120, the elastic element is clamped between the first damper 210 and the mounting housing 220, and the elastic element is compressed and deformed to be in a stored state. The elastic element can be a spring or a sheet spring. One end of the elastic element is connected to the mounting housing 220, and the other end is a free end. When the first damper 210 closes the exhaust port 120, the free end of the elastic element abuts against the first damper 210.

[0063] Thus, before the drive mechanism 230 is activated, the first damper 210 closes the exhaust port 120. The first damper 210 is subjected to an elastic force applied by the elastic element. This elastic force can be transmitted through the rotating shaft 240 and act on the drive shaft 232. In the first operating condition, because the drive shaft 232 is locked by the connecting mechanism, the drive shaft 232 will not move, keeping the first damper 210 in the closed exhaust port 120 state (i.e., maintaining the first position). In the second operating condition, for example, if the battery compartment catches fire and explodes, causing the temperature inside the battery compartment to exceed the preset temperature, the connecting mechanism will release the lock on the drive shaft 232 due to the high temperature, allowing the drive shaft 232 to move. At this time, the drive shaft 232 moves under the action of the elastic force and the gas pressure of the combustible gas combustion, causing the first damper 210 to start rotating and gradually open the exhaust port 120. In this embodiment, an elastic element is provided. When the first damper 210 closes the exhaust port 120, the elastic element is clamped between the mounting shell 220 and the first damper 210, so that the first damper 210 is subjected to the force applied by the elastic element, which can better open the exhaust port 120.

[0064] Please refer to Figure 5 The exhaust device 200 also includes a limiting mechanism 250, which is disposed on the mounting housing 220. When the first damper 210 moves to a set angle relative to the side wall 110, the limiting mechanism 250 engages with the first damper 210 to limit its movement. It can be understood that the set angle is the aforementioned angle θ at which the first damper 210 is tilted relative to the side wall 110 when it is in the second position.

[0065] In some embodiments, please refer to Figure 5 The limiting mechanism 250 includes a limiting rod 251. One end of the limiting rod 251 is hinged to the first damper 210, and the other end of the limiting rod 251 is slidably connected to the mounting shell 220. The limiting rod 251 can slide relative to the mounting shell 220 within a set distance so that the first damper 210 can rotate within a set angle range.

[0066] In this embodiment, a limiting groove 2511 is provided at the end of the limiting rod 251 away from the first damper 210. A connecting post is provided on the mounting shell 220, passing through the limiting groove 2511. The limiting rod 251 slides relative to the mounting shell 220 through the sliding engagement between the limiting groove 2511 and the connecting post. The length of the limiting groove 2511 constrains the sliding distance of the limiting rod 251, allowing the limiting rod 251 to slide relative to the mounting shell 220 within a set distance. Alternatively, in another embodiment, a limiting groove can be provided for the mounting shell 220, and a protruding post can be provided at the end of the limiting rod 251 away from the first damper 210. The protruding post is inserted into the limiting groove and slides along the limiting groove, thereby allowing the limiting rod 251 to slide relative to the mounting shell 220 within a set distance.

[0067] In some embodiments, the limiting mechanism 250 may further include a limiting post 252. When the first air damper 210 is in the first position, the limiting post 252 is located on the side of the first air damper 210 facing the battery compartment and is spaced apart from the first air damper 210. When the first air damper 210 rotates from the first position to the second position, such as Figure 5 As shown, the limiting post 252 abuts against the bottom end of the first damper 210. The limiting post 252 further limits the first damper 210. Thus, by limiting the first damper 210 through both the limiting rod 251 and the limiting post 252, the first damper 210 can be better limited to the second position.

[0068] When the exhaust device 200 opens the first damper 210 to discharge combustible gas, and the power supply is depleted, the first damper 210 is limited to the second position by the limiting mechanism 250, so that the first damper 210 remains open at the exhaust port 120. In this way, the combustible gas in the battery compartment can be discharged automatically from the exhaust port 120, reducing the risk of fire and explosion in the battery compartment.

[0069] Please refer to Figure 1 The energy storage container 10 also includes an air intake device 300. The side wall 110 is provided with an air intake 130 that communicates with the battery compartment. The air intake device 300 is connected to the container body 100 and is located at the air intake 130.

[0070] In some embodiments, please refer to Figure 7 and Figure 8The air intake device 300 includes a second damper 310, which rotates relative to the side wall 110 to open or close the air inlet 130. It is understood that the air intake device 300 and the exhaust device 200 can be activated simultaneously; that is, when the first damper 210 opens the exhaust port 120, the second damper 310 opens the air inlet 130. This creates an airflow path between the air inlet 130, the battery compartment, and the exhaust port 120, preventing combustible gases from being trapped inside the battery compartment and facilitating timely discharge of combustible gases from the battery compartment to the outside of the housing 100 through the exhaust port 120.

[0071] The air inlet 130 is positioned lower than the exhaust outlet 120. By positioning the air inlet 130 lower than the exhaust outlet 120, it serves two purposes: firstly, combustible gases discharged from the exhaust outlet 120 are less likely to re-enter the battery compartment through the air inlet 130; secondly, in the event of a fire and deflagration in the battery compartment, the hot air generated by combustion is discharged upwards from the exhaust outlet 120. Since the air temperature around the air inlet 130 is lower than that near the exhaust outlet 120, the air entering through the air inlet 130 is cold air, which helps to reduce the degree of deflagration in the battery compartment. At the same time, the natural convection effect of the air promotes the rapid discharge of air from the battery compartment, which can better relieve pressure and effectively prevent explosions.

[0072] To expedite and improve the removal of flammable gases from the battery compartment, in some embodiments, the air intake device 300 further includes a fan 320. When the second damper 310 opens the air inlet 130, the fan 320 is activated. The operation of the fan 320 blows air from outside the housing 100 into the battery compartment, and simultaneously expels the flammable gases from the battery compartment through the exhaust outlet 120. It is easy to understand that if a fire or deflagration suddenly occurs in the battery compartment while both the air intake device 300 and the exhaust device 200 are activated to remove flammable gases, the flames will rise under the influence of the airflow. By equipping the air intake device 300 with a fan 320, while the exhaust device 200 does not, the flames from the battery compartment fire will not affect the fan 320 of the air intake device 300, and will not burn out the fan 320. After a fire or deflagration in the battery compartment, only the drive mechanism 230 of the first damper 210 of the exhaust device 200 needs to be inspected and maintained, thus reducing costs.

[0073] In one embodiment, the fan 320 is a DC24V explosion-proof fan. The small size of the DC24V explosion-proof fan ensures that the overall volume of the air intake device 300 is not too large, and the air intake device 300 does not protrude from the surface of the energy storage container 100, which is conducive to the standardization of the energy storage container 10.

[0074] In some embodiments, please refer to Figure 8When the second damper 310 opens the air inlet 130, an air intake channel 301 communicating with the air inlet 130 is formed on the lower side of the second damper 310, and the second damper 310 is inclined downward relative to the side wall 110.

[0075] In this way, the air inlet 130 is located below the second air damper 310. The fan 320 of the air inlet device 300 mainly draws the air below the second air damper 310 into the battery compartment, and has little suction effect on the air above the second air damper 310. As a result, the combustible gas discharged from the exhaust port 120 is not easily affected by the fan 320 of the air inlet device 300, and the combustible gas discharged from the exhaust port 120 is prevented from re-entering the battery compartment through the air inlet 130.

[0076] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An energy storage container, characterized in that, include: The enclosure has a battery compartment inside, and the side wall of the enclosure has an exhaust vent that communicates with the battery compartment. An exhaust device is connected to the housing and located at the exhaust port. The exhaust device includes a first damper that rotates between a first position and a second position relative to the side wall. When the first damper is in the first position, the exhaust port is closed. When the first damper rotates from the first position to the second position, the exhaust port is opened. An exhaust channel communicating with the exhaust port is formed on the upper side of the first damper.

2. The energy storage container according to claim 1, characterized in that, When the first damper is in the second position, the first damper is tilted upward relative to the side wall.

3. The energy storage container according to claim 1, characterized in that, The exhaust device includes a drive mechanism, which is connected to the first damper. The energy storage container also includes a gas detector, which is used to detect the concentration of combustible gas in the battery compartment. When the gas detector detects that the concentration of combustible gas is higher than a preset concentration, it triggers the drive mechanism to drive the first damper to rotate and open the exhaust port.

4. The energy storage container according to any one of claims 1 to 3, characterized in that, The exhaust device includes a mounting shell and a rotating shaft. The exhaust device is fixed to the housing by the mounting shell. The rotating shaft is rotatably connected to the mounting shell and connected to the first damper. The first damper can rotate relative to the side wall by the rotating shaft. The rotating shaft is connected to the bottom end of the first damper.

5. The energy storage container according to claim 4, characterized in that, The exhaust device includes a drive mechanism, which includes a drive motor. The drive motor includes a connecting mechanism and a drive shaft. The drive shaft is connected to the rotating shaft and is also connected to the output shaft of the drive motor via the connecting mechanism. The connecting mechanism is configured to lock the drive shaft in a first operating condition and release the lock on the drive shaft in a second operating condition. The first operating condition is when the ambient temperature of the drive motor is lower than a preset temperature, and the second operating condition is when the ambient temperature of the drive motor is higher than the preset temperature.

6. The energy storage container according to claim 4, characterized in that, The exhaust device also includes an elastic element, which is fixed to the mounting shell. When the first damper is in the first position, the elastic element is clamped between the first damper and the mounting shell, and the elastic element is in a stored state.

7. The energy storage container according to any one of claims 1 to 3, characterized in that, The exhaust device includes a mounting shell and a limiting mechanism. The first damper is rotatably connected to the mounting shell, and the limiting mechanism is disposed on the mounting shell. When the first damper rotates relative to the side wall to a set angle, the limiting mechanism cooperates with the first damper to limit the first damper to the set angle.

8. The energy storage container according to claim 7, characterized in that, The limiting mechanism includes a limiting rod, one end of which is hinged to the first damper, and the other end of which is slidably connected to the mounting shell. The limiting rod can slide relative to the mounting shell within a set distance so that the first damper can rotate within the set angle range.

9. The energy storage container according to any one of claims 1 to 3, characterized in that, The side wall is also provided with an air inlet communicating with the battery compartment. The energy storage container also includes an air intake device, which is connected to the container body and located at the air inlet; wherein the air inlet is set lower than the exhaust outlet.

10. The energy storage container according to claim 9, characterized in that, The air intake device includes a second air damper, which moves relative to the side wall to open or close the air inlet. When the second air damper opens the air inlet, an air intake channel communicating with the air inlet is formed on the lower side of the second air damper, and the second air damper is inclined downward relative to the side wall. And / or, the air intake device includes a fan for drawing air from outside the housing into the battery compartment through the air inlet and discharging it through the air outlet.

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