Sliding battery cell mechanism and energy storage container

Abstract

The utility model belongs to the field of energy storage, and specifically provides a sliding-down battery cell mechanism and an energy storage container, wherein the sliding-down battery cell mechanism includes: a sliding channel and a battery compartment group; the battery compartment group includes N battery cells and a receiving bar; the receiving bar is provided with N receiving grooves suitable for battery cells to be embedded, and the openings of the receiving grooves are connected to the sliding-down channel; a driving assembly is arranged in the receiving groove; the driving assembly is configured to push the battery cells in the receiving grooves into the sliding-down channel when receiving thermal runaway information; wherein N≥2. Compared with the traditional fire protection design, the sliding-down design adds a sliding-down channel to the system, and a driving assembly is arranged at the battery cell loading position. The thermal runaway battery cells will be pushed to the sliding-down channel, thereby eliminating the hazard of battery cell re-ignition, and there is no need to perform fire extinguishing operations in the box.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, and in particular to a sliding type battery core mechanism and an energy storage container. Background Art

[0002] The system safety of lithium battery energy storage containers has always been a focus of attention.

[0003] In the related art, fire extinguishing agents are used for firefighting. Although they can effectively suppress the harm caused by thermal runaway of battery cells, there are still defects such as delayed start-up, incomplete fire extinguishing, and involvement of surrounding battery cells and equipment. That is, a large number of battery cells are integrated in the pack in the form of modules, and the surrounding non-faulty battery cells will be greatly affected, increasing the losses caused by thermal runaway; firefighting actions may not be completely extinguished, and secondary reignition may occur before the arrival of firefighters, causing greater losses to the system.

[0004] How to fundamentally isolate the impact of thermal runaway of battery cells on other systems of the energy storage container is an urgent issue that needs to be addressed. Utility Model Content

[0005] The utility model aims to provide a sliding type battery core mechanism and an energy storage container.

[0006] In order to solve the above technical problems, the utility model provides a sliding type battery cell mechanism, comprising:

[0007] Slideway and battery compartment assembly;

[0008] The battery compartment group includes N battery cells and a receiving bar;

[0009] The accommodating bar is provided with N accommodating grooves suitable for embedding the battery cells, and the openings of the accommodating grooves are communicated with the sliding channel;

[0010] A driving assembly is arranged in the receiving groove;

[0011] The driving assembly is configured to push the battery cell in the receiving slot into the sliding channel upon receiving thermal runaway information;

[0012] Among them, N≥2.

[0013] Further, the driving assembly includes a push rod and a driving part;

[0014] The push rod abuts against the battery core;

[0015] The driving unit is configured to drive the push rod to extend and retract upon receiving thermal runaway information, so as to push the battery cell in the slot into the sliding channel.

[0016] Furthermore, the driving unit is a steering gear.

[0017] Furthermore, a detection component is also provided in the receiving groove;

[0018] The detection assembly is configured to detect thermal runaway information in the containing tank.

[0019] Furthermore, the detection component includes a temperature detector and a smoke detector.

[0020] Furthermore, the number of the sliding channels is two;

[0021] The two sliding channels are respectively arranged on both sides of the accommodating bar;

[0022] The N accommodating grooves are divided into two groups, which are respectively arranged on both sides of the accommodating bar and communicated with the corresponding sliding channels.

[0023] Furthermore, the N battery cells are connected in series in sequence.

[0024] Furthermore, each of the battery cells is connected in parallel with a protection switch;

[0025] The protection switch is electrically connected to the two poles of the battery cell;

[0026] The protection switch is configured to close when the battery cell is pushed into the sliding channel by the driving assembly.

[0027] The utility model also provides an energy storage container, comprising:

[0028] A box body and M sliding-type battery cell mechanisms;

[0029] The M sliding-type battery cell mechanisms are fixedly arranged in the box, and the sliding channel is spaced a preset distance from the bottom of the box;

[0030] Among them, M≥2.

[0031] Furthermore, the energy storage container also includes a transmission track;

[0032] The transmission crawler is fixedly arranged at the bottom of the box body, and the discharge end of the transmission crawler extends to the outside of the box body.

[0033] The beneficial effect of the utility model is that the utility model provides a sliding-down battery cell mechanism and an energy storage container, wherein the sliding-down battery cell mechanism includes: a sliding channel and a battery compartment group; the battery compartment group includes N battery cells and a receiving bar; the receiving bar is provided with N receiving grooves suitable for battery cells to be embedded, and the opening of the receiving groove is connected to the sliding-down channel; a driving assembly is arranged in the receiving groove; the driving assembly is configured to push the battery cells in the receiving groove into the sliding-down channel when receiving thermal runaway information; wherein N≥2. Compared with the traditional fire protection design, the sliding-down design adds a sliding-down channel to the system, and a driving assembly is arranged at the battery cell loading position. The thermal runaway battery cells will be pushed to the sliding-down channel, thereby eliminating the hazard of battery cell re-ignition, and there is no need to perform fire extinguishing operations in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is a structural schematic diagram of a slide-off battery cell mechanism provided in an embodiment of the utility model.

[0036] Figure 2 It is a partial structural schematic diagram of the slide-off type battery cell mechanism provided in an embodiment of the utility model.

[0037] Figure 3 It is a circuit connection diagram of some cells in the slide-off cell mechanism provided by an embodiment of the utility model.

[0038] Figure 4 It is a cross-sectional view of the energy storage container provided by the embodiment of the utility model.

[0039] Figure 5 It is a front view of the energy storage container provided by the embodiment of the utility model.

[0040] In the figure: 100, sliding channel; 200, battery compartment group; 210, receiving bar; 211, receiving groove; 2121, push rod; 213, detection component; 220, battery cell; 300, box body; 400, transmission track. DETAILED DESCRIPTION

[0041] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0042] For examples, see Figure 1-Figure 5, at least one embodiment provides a sliding cell mechanism, comprising: a sliding channel 100 and a battery compartment group 200; the battery compartment group 200 comprises N cells 220 and a receiving bar 210; the receiving bar 210 is provided with N receiving grooves 211 suitable for the cells 220 to be embedded, and the openings of the receiving grooves 211 are connected to the sliding channel 100; a driving component is arranged in the receiving groove 211; the driving component is configured to push the cells 220 in the receiving groove 211 into the sliding channel 100 when receiving thermal runaway information; wherein N≥2. Compared with the traditional fire protection design, the sliding design adds a sliding channel 100 to the system, and a driving component is arranged at the loading position of the cells 220. The thermal runaway cells 220 will be pushed to the sliding channel 100, thereby eliminating the hazard of the cells 220 re-igniting, and there is no need to perform fire extinguishing operations in the box.

[0043] The driving assembly includes a push rod 2121 and a driving unit; the push rod 2121 abuts against the battery cell 220; the driving unit is configured to drive the push rod 2121 to extend and retract when receiving thermal runaway information, so as to push the battery cell 220 in the receiving slot into the sliding channel 100. Since the push rod 2121 abuts against the side of the battery cell 220, when the push rod 2121 is extended, the battery cell 220 is pushed toward the sliding channel 100, thereby moving the battery cell 220 from the receiving slot 211. Specifically, an active cavity suitable for the push rod 2121 to be embedded is provided at the bottom of the receiving slot 211.

[0044] In at least one embodiment, the driving unit is a steering gear. In other embodiments, the driving unit can be, but is not limited to, a push rod 2121 motor, a stepping motor, etc.

[0045] In order to detect the thermal runaway information in the receiving groove 211 , in at least one embodiment, a detection component 213 is further disposed in the receiving groove 211 ; the detection component 213 is configured to detect the thermal runaway information in the receiving groove 211 .

[0046] Specifically, the detection component 213 includes a temperature detector and a smoke detector. The temperature detector and the smoke detector are fixedly arranged at the bottom of the receiving groove 211, so as to facilitate the detection of the temperature and smoke information of the battery cell 220. When the detected value is greater than the preset value, it indicates that the battery cell 220 is in a thermal runaway state, and the control driving component pushes the battery cell 220 into the sliding channel 100.

[0047] In at least one embodiment, the number of the sliding channels 100 is two; the two sliding channels 100 are respectively arranged on both sides of the accommodating bar 210; the N accommodating grooves 211 are divided into two groups, respectively opened on both sides of the accommodating bar 210, and connected to the corresponding sliding channels 100.

[0048] It should be noted that the sliding channel 100 may be an actual pipe, or may be a space between two accommodating bars 210 .

[0049] The following is an explanation of the connection method of the battery cells 220 in the accommodation bar 210. N battery cells 220 are connected in series in sequence. Thus, the voltage amplitude is guaranteed. In order to ensure the normal operation of the sliding battery cell mechanism after the thermal runaway battery cell 220 is pushed into the sliding channel 100, each battery cell 220 is connected in parallel with a protection switch; the protection switch is electrically connected to the two poles of the battery cell 220; the protection switch is configured to close when the battery cell 220 is pushed into the sliding channel 100 by the driving component.

[0050] Among them, the protection switch can be but not limited to a pressure switch, an infrared sensor switch or a mechanical linkage switch. As long as the push rod 2121 can trigger the protection switch to close when it is extended, it is within the protection scope of this application.

[0051] At least one embodiment provides an energy storage container, comprising: a box body 300 and M sliding-type battery cell mechanisms as described above; the M sliding-type battery cell mechanisms are fixedly arranged in the box body 300, and the sliding channel 100 is spaced a preset distance from the bottom of the box body 300.

[0052] In order to discharge the battery cell 220 in thermal runaway from the energy storage container, in at least one embodiment, the energy storage container further includes a transmission track 400; the transmission track 400 is fixedly arranged at the bottom of the box body 300, and the discharge end of the transmission track 400 extends to the outside of the box body 300. By setting the transmission track 400, the battery cell 220 in thermal runaway is directly discharged from the energy storage container, thereby completely eliminating the hazard of the battery cell 220 re-igniting. At the same time, there is no need to design a fire action module in the energy storage container, and there is no need to perform fire extinguishing operations in the cabinet.

[0053] In summary, the utility model provides a sliding-down battery cell mechanism and an energy storage container, wherein the sliding-down battery cell mechanism comprises: a sliding-down channel 100 and a battery compartment group 200; the battery compartment group 200 comprises N battery cells 220 and a receiving bar 210; the receiving bar 210 is provided with N receiving grooves 211 suitable for the battery cells 220 to be embedded, and the opening of the receiving groove 211 is communicated with the sliding-down channel 100; a driving assembly is arranged in the receiving groove 211; the driving assembly is configured to push the battery cells 220 in the receiving groove 211 into the sliding-down channel 100 when receiving thermal runaway information; wherein N≥2. Compared with the traditional fire protection design, the sliding-down design adds a sliding-down channel 100 in the system, and a driving assembly is arranged at the loading position of the battery cells 220. The thermal runaway battery cells 220 will be pushed to the sliding-down channel 100, thereby eliminating the hazard of the battery cells 220 re-igniting, and there is no need to perform fire extinguishing operations in the box.

[0054] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0055] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0057] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0058] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0059] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0060] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A sliding battery cell mechanism, characterized in that: include: Slideway and battery compartment assembly; The battery compartment group includes N battery cells and a receiving bar; The accommodating bar is provided with N accommodating grooves suitable for embedding the battery cells, and the openings of the accommodating grooves are communicated with the sliding channel; A driving assembly is arranged in the receiving groove; The driving assembly is configured to push the battery cell in the receiving slot into the sliding channel upon receiving thermal runaway information; Among them, N≥2.

2. The slide-off battery cell mechanism according to claim 1, characterized in that: The driving assembly includes a push rod and a driving part; The push rod abuts against the battery core; The driving unit is configured to drive the push rod to extend and retract upon receiving thermal runaway information, so as to push the battery cell in the slot into the sliding channel.

3. The slide-off battery cell mechanism according to claim 2, characterized in that: The driving unit is a steering gear.

4. The slide-off battery cell mechanism according to claim 1, characterized in that: A detection component is also provided in the receiving groove; The detection assembly is configured to detect thermal runaway information in the containing tank.

5. The slide-off battery cell mechanism according to claim 4, characterized in that: The detection component includes a temperature detector and a smoke detector.

6. The slide-off battery cell mechanism according to claim 1, characterized in that: The number of the sliding channels is two; The two sliding channels are respectively arranged on both sides of the accommodating bar; The N accommodating grooves are divided into two groups, which are respectively arranged on both sides of the accommodating bar and communicated with the corresponding sliding channels.

7. The slide-off battery cell mechanism according to claim 1, characterized in that: The N battery cells are connected in series in sequence.

8. The slide-off battery cell mechanism according to claim 7, characterized in that: Each of the battery cells is connected in parallel with a protection switch; The protection switch is electrically connected to the two poles of the battery cell; The protection switch is configured to close when the battery cell is pushed into the sliding channel by the driving assembly.

9. An energy storage container, characterized in that: include: A box body and M slide-off battery cell mechanisms as described in any one of claims 1 to 7; The M sliding-type battery cell mechanisms are fixedly arranged in the box, and the sliding channel is spaced a preset distance from the bottom of the box; Among them, M≥2.

10. The energy storage container according to claim 9, characterized in that: The energy storage container also includes a transmission track; The transmission crawler is fixedly arranged at the bottom of the box body, and the discharge end of the transmission crawler extends to the outside of the box body.

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