Energy storage battery compartment for realizing cluster-level liquid cooling and fire fighting integration

Abstract

The invention discloses an energy storage battery compartment for realizing cluster-level liquid cooling and fire fighting integration, and relates to the technical field of energy storage batteries, the energy storage battery compartment comprises a carrier plate, a mounting chamber is arranged in a manner of penetrating through the upper and lower surfaces, and a liquid inlet pipeline and a liquid outlet pipeline are respectively arranged on the front and rear sides, corresponding to the mounting chamber, in the carrier plate; the cooling pipeline is arranged in the mounting cavity; the plurality of spraying mechanisms are arranged on the outer side of the cooling pipeline and are communicated with the cooling pipeline; and the metal heat-conducting plate covers the upper opening and the lower opening of the mounting cavity. Circulating cooling liquid of a battery serves as fire extinguishing liquid, the circulating cooling liquid is used for absorbing heat released in the charging and discharging process of the battery in the upper-layer battery box in a normal state, so that the battery is stabilized in a normal working temperature range, and when the battery is in thermal runaway, the circulating cooling liquid can be sprayed to the battery in the lower-layer battery box through the spraying mechanism to extinguish fire; and an integrated and combined highly integrated structure of upper cooling and lower extinguishing is adopted, so that the technical effect of one-liquid dual-purpose of the circulating cooling liquid is realized, and the economic benefit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage batteries, and in particular to an energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration. Background Art

[0002] Energy storage battery silos are widely used in the energy storage sector, integrating batteries and related components within a standard shipping container. However, existing energy storage battery silos present certain safety risks. For example, if a few cells within a container experience thermal runaway, the heat and flames released by the reaction can trigger thermal runaway in adjacent cells, potentially causing the entire container to ignite.

[0003] To address the above technical issues, the existing protective measure is to integrate a fire-fighting system inside the container. When thermal runaway of the battery occurs, the battery can be extinguished in a timely manner. However, this fire-fighting system generally uses independent fire-fighting pipes, which will occupy a large area of ​​the internal space of the container, resulting in a reduction in the number of batteries and a reduction in the overall efficiency of the energy storage battery warehouse.

[0004] In view of this, how to provide a fire-fighting structure with a compact structure and reduced space occupation is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0005] The purpose of the present invention is to provide an energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides an energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration, comprising: a plurality of energy storage battery units stacked in a longitudinal direction, wherein the energy storage battery units are composed of a battery box and a fire protection cooling structure, wherein the fire protection cooling structure comprises:

[0007] A carrier plate is provided with mounting chambers on the upper and lower surfaces, and a liquid inlet pipe and a liquid outlet pipe are provided on the front and rear sides of the carrier plate corresponding to the mounting chambers respectively;

[0008] A cooling pipe is arranged in the installation chamber, and its two ends are respectively connected to the liquid inlet pipe and the liquid outlet pipe;

[0009] a plurality of spray mechanisms, disposed outside the cooling pipe and in communication with the cooling pipe;

[0010] a metal heat conducting plate covering the upper opening and the lower opening of the installation chamber;

[0011] A accommodating chamber is defined inside the battery box, the carrier plate is arranged on the bottom surface of the battery box, the battery pack is located in the accommodating chamber and is arranged on the metal heat-conducting plate with an upper opening in the installation chamber; the water outlet end of the spray mechanism passes through the metal heat-conducting plate with a lower opening in the installation chamber and is connected to the battery box below.

[0012] Furthermore, in the topmost energy storage battery unit, a fire protection cooling structure is provided on the top surface of the battery box.

[0013] Furthermore, a spray hole is provided on the top of the battery box, and a water outlet pipe of the spray mechanism passes through the metal heat conducting plate at the lower opening of the installation chamber and extends from the spray hole into the battery box below.

[0014] Furthermore, there are multiple cooling pipes arranged in the installation chamber, the liquid inlet pipe is connected to multiple liquid inlet branches, and the multiple liquid inlet branches are connected to multiple cooling pipes one-to-one; the liquid outlet pipe is connected to multiple liquid outlet branches, and the multiple liquid outlet branches are connected to multiple cooling pipes one-to-one.

[0015] Furthermore, the liquid inlet branch pipe is provided with an electrically controlled flow valve, and the liquid outlet branch pipe is provided with an electrically controlled switch valve.

[0016] Furthermore, a smoke detector and a temperature sensor are provided in the spray mechanism.

[0017] Furthermore, it also includes:

[0018] The control system controls the opening and closing of the spray mechanism, the opening and closing of the electric control switch valve, and the flow of the electric control flow valve according to the monitoring data uploaded by the smoke detector and the temperature sensor.

[0019] Furthermore, the carrier plate is provided with a first orifice plate structure near the four corners, and the outer side of the battery box is provided with a second orifice plate structure.

[0020] Furthermore, the carrier plate is provided with card slots near the four corners, the card slots are spaced apart from the first orifice plate, the battery box is correspondingly provided with card connectors, and the carrier plate and the battery box are connected via the card connectors and the card slots.

[0021] Furthermore, an opening and closing handle is provided on the outside of the battery box.

[0022] The present invention discloses the following technical effects:

[0023] 1. The present invention uses the battery's circulating coolant as a fire extinguishing liquid. Under normal conditions, the circulating coolant is used to absorb the heat released during the charging and discharging process of the batteries in the upper battery box, so that the batteries are stabilized within a normal operating temperature range. When the batteries thermally run away, the circulating coolant can be sprayed to the batteries in the lower battery box through a spray mechanism to extinguish the fire, thus achieving the technical effect of "one liquid for two purposes" of the circulating coolant. Compared with the existing technology, the batteries do not need to be equipped with separate fire-fighting pipes, and the spray mechanism is integrated into the cooling pipe, which takes up little space, achieves a highly integrated structure, and can improve the overall economic benefits of the energy storage battery compartment.

[0024] 2. In terms of the overall structural layout of the energy storage battery compartment, the present invention adopts a "top cooling and bottom extinguishing" combined structure. Specifically, the energy storage battery compartment is composed of multiple energy storage battery units stacked longitudinally. The energy storage battery unit is composed of a battery box and a fire-fighting cooling structure. The fire-fighting cooling structure can cool the battery pack in the upper battery box and can also be used to extinguish the battery pack in the lower battery box, further reducing the laying of additional pipelines and lines, reducing occupied space, and improving the efficiency of the energy storage battery compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the fire cooling structure;

[0027] Figure 2 for Figure 1 A magnified schematic diagram of the first orifice plate structure;

[0028] Figure 3 This is a schematic diagram of the coordination between the carrier board, battery pack, and battery box;

[0029] Figure 4 for Figure 3 Exploded structure diagram;

[0030] Figure 5 for Figure 3 Schematic diagram of the structure of the middle card connector;

[0031] Figure 6 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 7 Schematic diagram of the spray mechanism;

[0033] Among them, 1. carrier board; 101. mounting chamber; 102. card slot; 2. liquid inlet pipe; 3. liquid outlet pipe; 4. cooling pipe; 5. spray mechanism; 6. metal heat conducting plate; 7. battery box; 701. spray hole; 702. card connector; 8. smoke detector; 9. temperature sensor; 10. control system; 11. first orifice plate structure; 12. second orifice plate structure; 13. battery pack. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] An embodiment of the present invention provides an energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration, comprising: a plurality of energy storage battery units stacked in a longitudinal direction, the energy storage battery unit consisting of a battery box 7 and a fire protection cooling structure, the fire protection cooling structure comprising:

[0037] The carrier plate 1 is provided with a mounting chamber 101 through the upper and lower surfaces, and a liquid inlet pipe 2 and a liquid outlet pipe 3 are provided on the front and rear sides of the carrier plate 1 corresponding to the mounting chamber 101;

[0038] The cooling pipe 4 is arranged in the installation chamber 101, and its two ends are respectively connected to the liquid inlet pipe 2 and the liquid outlet pipe 3;

[0039] A plurality of spray mechanisms 5 are arranged outside the cooling pipe 4 and communicated with the cooling pipe 4;

[0040] A metal heat conducting plate 6 covering the upper opening and the lower opening of the mounting chamber 101;

[0041] A accommodating chamber is defined inside the battery box 7, the carrier plate 1 is arranged on the bottom surface of the battery box 7, the battery pack 13 is located in the accommodating chamber and is arranged on the metal heat conducting plate 6 with an opening on the installation chamber 101; the water outlet end of the spray mechanism 5 passes through the metal heat conducting plate 6 with an opening below the installation chamber 101 and is connected to the battery box 7 below.

[0042] The liquid inlet pipe 2, the liquid outlet pipe 3 and the cooling pipe 4 form a coolant circulation loop. The coolant is required to have heat absorption cooling characteristics and safe fire extinguishing characteristics. Fluorinated liquid (such as Novec 7100, Novec 7300), flame retardant ethylene glycol-based coolant (ethylene glycol / propylene glycol + flame retardant additives (such as organic phosphorus compounds, halogen flame retardants)), water-based flame retardant coolant (water + nano flame retardant particles (such as phosphates, borates)), phase change material PCM coolant (paraffin / fatty acid + flame retardant (such as expanded graphite, aluminum hydroxide)), inert gas / supercritical fluid (such as carbon dioxide supercritical fluid), etc. can be used.

[0043] The metal heat conducting plate 6 can directly contact the battery pack 13 for heat exchange, eliminating the additional thermal resistance of heat conducting media such as air, while increasing the effective contact area and improving the heat dissipation efficiency.

[0044] In this embodiment, in the uppermost energy storage battery unit, a fire-fighting cooling structure is provided on the top surface of the battery box 7 .

[0045] In this embodiment, a spray hole 701 is opened on the top of the battery box 7, and the water outlet pipe of the spray mechanism 5 passes through the metal heat conducting plate 6 with an opening below the installation chamber 101 and extends into the battery box 7 below from the spray hole 701.

[0046] In this embodiment, multiple cooling pipes 4 are arranged in the installation chamber 101, the liquid inlet pipe 2 is connected to multiple liquid inlet branches, and the multiple liquid inlet branches are connected to multiple cooling pipes 4 one-to-one; the liquid outlet pipe 3 is connected to multiple liquid outlet branches, and the multiple liquid outlet branches are connected to multiple cooling pipes 4 one-to-one.

[0047] In this embodiment, an electrically controlled flow valve is provided on the liquid inlet branch pipe, and an electrically controlled switch valve is provided on the liquid outlet branch pipe.

[0048] In this embodiment, a smoke detector 8 and a temperature sensor 9 are provided in the spray mechanism 5. In other embodiments, an abnormal thermal runaway monitoring and alarm system may be arranged in the spray mechanism 5 or other suitable locations. The specific structure and circuit relationship may adopt existing technologies and will not be described in detail here.

[0049] In this embodiment, it also includes:

[0050] The control system 10 controls the opening and closing of the spray mechanism 5, the opening and closing of the electric-controlled switch valve, and the flow of the electric-controlled flow valve according to the monitoring data uploaded by the smoke detector 8 and the temperature sensor 9.

[0051] In this embodiment, the carrier plate 1 is provided with a first perforated plate structure 11 near the four corners, and a second perforated plate structure 12 is provided on the outside of the battery box 7. During the stacking and construction of the energy storage battery compartment, the first and second perforated plates can facilitate the hook hoisting, thereby improving installation efficiency.

[0052] In this embodiment, the carrier board 1 is provided with card slots 102 near the four corners, the card slots 102 are spaced apart from the first hole plate, and the battery box 7 is correspondingly provided with a card connector 702. The carrier board 1 and the battery box 7 are connected through the card connector 702 and the card slots 102.

[0053] In this embodiment, an opening and closing handle is provided on the outside of the battery box 7 .

[0054] Under normal circumstances, the circulating coolant is used to absorb the heat released during the battery charging and discharging process, so that the battery can be stabilized within the normal operating temperature range.

[0055] When the battery thermal runaway occurs, the smoke detector 8 and the temperature sensor 9 upload monitoring data to the control system 10 and generate an alarm signal. The control system 10 controls the spray mechanism 5 to open and close the electronically controlled switch valve, and at the same time adjusts the flow of the electronically controlled flow valve, so that the circulating coolant is sprayed to the battery through the spray mechanism 5 to extinguish the fire.

[0056] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration, characterized in that: include: A plurality of energy storage battery units stacked in a longitudinal direction, wherein the energy storage battery units are composed of a battery box (7) and a fire-fighting cooling structure, wherein the fire-fighting cooling structure comprises: A carrier plate (1) is provided with an installation chamber (101) through the upper and lower surfaces, and a liquid inlet pipe (2) and a liquid outlet pipe (3) are respectively provided on the front and rear sides of the carrier plate (1) corresponding to the installation chamber (101); A cooling pipe (4) is arranged in the installation chamber (101), and its two ends are respectively connected to the liquid inlet pipe (2) and the liquid outlet pipe (3); A plurality of spray mechanisms (5) are arranged outside the cooling pipe (4) and communicated with the cooling pipe (4); A metal heat conducting plate (6) covering an upper opening and a lower opening of the installation chamber (101); The battery box (7) defines a storage chamber inside, the carrier plate (1) is arranged on the bottom surface of the battery box (7), the battery pack (13) is located in the storage chamber and is arranged on the metal heat-conducting plate (6) with an upper opening of the installation chamber (101); the water outlet end of the spray mechanism (5) passes through the metal heat-conducting plate (6) with a lower opening of the installation chamber (101) and is connected to the battery box (7) below.

2. The energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration according to claim 1 is characterized in that: In the uppermost energy storage battery unit, a fire protection cooling structure is provided on the top surface of the battery box (7).

3. The energy storage battery compartment that realizes cluster-level liquid cooling and fire protection integration according to claim 1, characterized in that: A spray hole (701) is provided on the top of the battery box (7), and a water outlet pipe of the spray mechanism (5) passes through the metal heat conducting plate (6) at the lower opening of the installation chamber (101) and extends from the spray hole (701) into the battery box (7) below.

4. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 1, characterized in that: A plurality of cooling pipes (4) are arranged in the installation chamber (101); the liquid inlet pipe (2) is connected to a plurality of liquid inlet branches, and the plurality of liquid inlet branches are connected to a plurality of cooling pipes (4) in a one-to-one correspondence; the liquid outlet pipe (3) is connected to a plurality of liquid outlet branches, and the plurality of liquid outlet branches are connected to a plurality of cooling pipes (4) in a one-to-one correspondence.

5. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 4, characterized in that: The liquid inlet branch pipe is provided with an electrically controlled flow valve, and the liquid outlet branch pipe is provided with an electrically controlled switch valve.

6. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 5, characterized in that: A smoke detector (8) and a temperature sensor (9) are provided in the spray mechanism (5).

7. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 6, characterized in that: Also includes: A control system (10) controls the opening and closing of the spray mechanism (5), the opening and closing of the electric control switch valve, and the flow rate of the electric control flow valve according to the monitoring data uploaded by the smoke detector (8) and the temperature sensor (9).

8. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 1, characterized in that: The carrier plate (1) is provided with a first orifice plate structure (11) near the four corners, and the outer side of the battery box (7) is provided with a second orifice plate structure (12).

9. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 8, characterized in that: The carrier plate (1) is provided with card slots (102) near the four corners, the card slots (102) are spaced apart from the first orifice plate, the battery box (7) is correspondingly provided with a card connector (702), and the carrier plate (1) and the battery box (7) are connected via the card connector (702) and the card slots (102).

10. The energy storage battery compartment for realizing cluster-level liquid cooling and fire protection integration according to claim 9, characterized in that: An opening and closing handle is provided on the outer side of the battery box (7).

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