Separation device of new energy battery pack

Abstract

The utility model discloses a separation device of a new energy battery pack, and relates to the technical field of new energy battery packs. Comprising a box; a temperature sensor, a battery module and an elastic push-out component are arranged in the box body; a blasting structure layer is arranged on the side part of the box body; the battery module comprises a plurality of single batteries arranged in the box body side by side, and the elastic push-out component can drive the single batteries to impact the blasting structure layer to enable the single batteries to be separated from the box body when the temperature sensor detects that the temperature is abnormal; and the battery monomers are ejected out of the box body in time through the elastic push-out component, so that the battery monomers can be quickly separated from the box body without external force, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy battery package technical field, concretely relates to a new energy battery package's detachment device. BACKGROUND

[0002] Lithium ion battery under high temperature or low temperature condition, its performance will reduce, especially under high temperature condition, internal heat floating increases, is easy to cause for example the danger such as fire spontaneous combustion. In addition, the consequence that vehicle is after suffering the impact, one is possibly with lithium battery is impacted by outside, and the impact intensity is too big to cause the shell part gum to fall off, and high-temperature liquid flows out;Two is possible to make the electric spark that outside electrical component produces due to impact to transfer to lithium battery inside, and then trigger the swelling of lithium battery inside, and when serious, will lead to explosion combustion.

[0003] In prior art, the battery replacement tool is usually used to replace the battery in time when the problem occurs, but the disassembly process needs to consume certain time, and the battery combustion in this process will prevent the replacement process, because the speed of battery combustion can spread to the surrounding electrical components in tens of seconds, is easy to cause the combustion of surrounding electrical components, and if the battery has already appeared spontaneous combustion phenomenon and then replaces, it is too late. Therefore, the battery with problem, the battery with spontaneous combustion tendency or the battery that has already occurred spontaneous combustion needs to be separated from the vehicle body in time, and the separation from the vehicle body can be realized quickly without external force, to avoid the occurrence of safety hazard. UTILITARIAN CONTENT

[0004] The utility model provides a kind of detachment device of new energy battery package, to solve the problem that battery with problem cannot be separated from vehicle body in time without external force.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of detachment device of new energy battery package, including box;Temperature sensor, battery module and elastic push-out component are equipped in the box;Explosion structure layer is arranged in the side of the box;The battery module includes a plurality of battery monomers that are arranged side by side in the box, and the elastic push-out component can drive the battery monomer to impact the explosion structure layer to make the battery monomer separate from the box when temperature sensor detects temperature anomaly.

[0007] The detachment device of new energy battery package of the utility model also has the following additional technical features:

[0008] A plurality of battery monomers are connected to the two sides in the box, and are distributed at equal intervals along the extension direction of the box;The elastic push-out component includes a plurality of elastic air bags arranged in the center of the box, and the plurality of elastic air bags are distributed at intervals along the extension direction of the box between the two battery monomers arranged oppositely.

[0009] The elastic air bag is connected with a gas generator, and the elastic air bag is controlled to expand by the gas generator to drive the battery monomer on both sides to impact the blasting structure layer and separate from the box.

[0010] The elastic pushing member comprises a positioning plate, a thick spring and a pushing assembly; the positioning plate is connected in the box, one side of the thick spring is connected to the positioning plate, and the side of the thick spring facing the battery monomer is connected with the pushing assembly; the pushing assembly is connected with the positioning plate through magnetic attraction, and the elastic force of the thick spring is released by disconnecting the connection between the pushing assembly and the positioning plate, so that the pushing assembly is pushed to move towards the battery monomer to drive the battery monomer to impact the blasting structure layer.

[0011] The pushing assembly comprises a push plate slidingly connected in the box, and the push plate is connected with an electromagnetic suction column on the side facing the positioning plate; the positioning plate is connected with a magnetic block magnetically connected with the electromagnetic suction column.

[0012] The blasting structure layer is made of pp-GF30 material.

[0013] The box is also connected with a smoke sensor for detecting whether the smoke amount in the box exceeds a preset value, and the elastic pushing member is controlled to drive the battery monomer to separate from the box when the smoke amount exceeds the preset value.

[0014] The box comprises a base, a surrounding plate connected to the base and an upper cover connected to the surrounding plate; the base is provided with a plurality of battery mounting positions for placing the battery monomers; the surrounding plate comprises a front surrounding plate and a rear surrounding plate arranged opposite to each other, and a side surrounding plate connected between the front surrounding plate and the rear surrounding plate; and the side surrounding plate is connected with the blasting structure layer.

[0015] The front surrounding plate is connected with an explosion-proof valve; and the front surrounding plate is also connected with a high-pressure interface and a low-pressure interface and a battery controller.

[0016] The box is connected with a liquid cooling plate, the liquid cooling plate is connected with a cooling liquid pipeline, and the cooling liquid pipeline has a water inlet and a water outlet.

[0017] Due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0018] 1. A new energy battery pack disengagement device, a temperature sensor is arranged in the box body, which can detect temperature abnormalities in the box body, and control the elastic push-out component in the box body to drive the battery monomer to disengage from the box body in time, prevent the abnormal battery in the box body from causing harm to the vehicle and personnel, and the battery monomer is pushed out of the box body in time by the elastic push-out component, without the help of external force, so that the battery monomer quickly disengages from the box body, reducing the safety hazard; a plurality of battery monomers are arranged side by side in the battery module in the box body, and a blasting structure layer is arranged on the side of the box body, when the temperature in the box body where the battery monomer is located exceeds the preset temperature at which the battery monomer is dangerous, the elastic push-out component can drive the battery monomer to impact the blasting structure layer, the blasting structure layer can be easily blasted under the impact of the battery monomer, reducing the resistance of the battery monomer disengaging from the box body, so that the battery monomer is disengaged from the box body in time.

[0019] 2. As a preferred embodiment of the utility model, a plurality of battery monomers are connected to the two sides in the box body and are equally spaced along the extension direction of the box body; the elastic push-out component includes a plurality of elastic air bags arranged in the center of the box body, and the plurality of elastic air bags are spaced between the two oppositely arranged battery monomers along the extension direction of the box body.

[0020] The arrangement of the battery monomers has various forms, preferably the battery monomers can be arranged on the two sides of the box body, and the battery monomers on each side are equally spaced along the extension direction of the box body, and a row of elastic air bags can be arranged in the center of the box body between the two sides, and the elastic air bags are correspondingly arranged between the two oppositely arranged battery monomers on the two sides, in this way, when the temperature in the box body exceeds the preset value, the elastic air bags are controlled to expand to drive the battery monomers on the two sides to impact the blasting structure layer on the side of the box body, so that the battery monomers on the two sides are directly impacted out of the side of the box body, without causing mutual interference of the battery monomers.

[0021] 3. As a preferred embodiment of the utility model, the elastic air bag is connected with a gas generator, and the elastic air bag is controlled to expand by the gas generator to drive the battery monomers on the two sides to impact the blasting structure layer and disengage from the box body.

[0022] The elastic air bag is usually in a deflated state, which does not interfere with the battery monomers and does not affect the space occupied by the battery monomers in the box body, once the temperature sensor detects that the temperature appears abnormal, the battery controller receives the signal sent by the temperature sensor, the battery controller driving circuit sends a start signal to the gas generator of the elastic air bag, the gas generator ignites the gas generating agent after receiving the signal, a large amount of nitrogen gas is generated in the elastic air bag, so that the elastic air bag can rapidly expand in a short time, and the elastic air bag pushes the battery monomers on the two sides to pass through the blasting structure layers on the two sides and is pushed out of the box body under the action of the gas pressure.

[0023] 4. As a preferred embodiment of the utility model, the elastic pushing member comprises a positioning plate, a thick spring and a pushing assembly; the positioning plate is connected to the box, one side of the thick spring is connected to the positioning plate, and the side of the thick spring facing the battery monomer is connected with the pushing assembly; the pushing assembly is connected to the positioning plate by magnetic attraction; the thick spring releases the elastic force by disconnecting the pushing assembly and the positioning plate, and the pushing assembly moves towards the battery monomer to drive the battery monomer to impact the blasting structure layer.

[0024] In addition to using the elastic air bag as the elastic pushing member, the thick spring can also be used to push the battery monomer out of the box, wherein the positioning plate is used to connect to the inside of the box to position and fix the thick spring, and the other end of the thick spring can be extended or shortened to push the pushing assembly to drive the battery monomer to impact the blasting structure layer; the other end of the thick spring is connected to the pushing assembly, the pushing assembly can be connected to the positioning plate by magnetic attraction, in the initial state, the pushing assembly and the positioning plate are connected by magnetic attraction, and the thick spring is in a compressed state between the pushing assembly and the positioning plate; when the temperature sensor detects abnormal temperature, the battery controller controls the pushing assembly to lose the magnetic force, so that the pushing assembly is disconnected from the positioning plate, and the elastic force stored in the thick spring in the compressed state is released at the moment when the pushing assembly is disconnected from the positioning plate, so that the pushing assembly is instantaneously pushed by the elastic force of the thick spring to move towards the battery monomer, and the battery monomer is driven by the pushing assembly to impact the blasting structure layer; when the blasting structure layer explodes, the battery monomer is out of the box, so that the battery monomer can be quickly separated from the vehicle body without external force.

[0025] 5. As a preferred embodiment of the utility model, the pushing assembly comprises a push plate slidingly connected to the inside of the box, and the push plate is connected with an electromagnetic suction column on the side facing the positioning plate; the positioning plate is connected with a magnetic block magnetically connected to the electromagnetic suction column.

[0026] The push plate of the pushing assembly is slidingly connected to the inside of the box, and can drive the battery monomer to impact the blasting structure layer when the elastic force of the thick spring acts on the push plate to slide along the box; since the push plate assembly needs to be in a magnetic attraction state with the positioning plate in the initial state, the push plate is provided with an electromagnetic suction column, and the positioning plate is provided with a magnetic block; when the electromagnetic suction column is powered, a magnetic force is generated to attract the magnetic block, so that the pushing assembly and the positioning plate are connected, the thick spring is compressed between the pushing assembly and the positioning plate to store elastic force, and the elastic force is released to drive the push plate to push the battery monomer to break through the blasting structure layer and separate from the box. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings described herein are used to provide further understanding of the utility model, and form a part of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0028] Fig. 1 It is a blasting structure schematic view of a new energy battery pack disengaging device according to an embodiment of the utility model;

[0029] Fig. 2 It is an internal structure schematic view of a new energy battery pack disengaging device according to an embodiment of the utility model;

[0030] Fig. 3 It is an overall structure schematic view of a new energy battery pack disengaging device according to an embodiment of the utility model;

[0031] In the drawing,

[0032] 1, box body;

[0033] 2, elastic push-out component;

[0034] 3, battery monomer;4, blasting structure layer;5, base;

[0035] 61, front wall;62, side wall;

[0036] 7, upper cover;8, explosion-proof valve;9, liquid cooling plate;10, battery controller;11, high-voltage interface;12, low-voltage interface. DETAILED DESCRIPTION

[0037] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the specific embodiments disclosed below.

[0038] In addition, in the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected, or can be communicated; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. In the description of the present application, the description of the terms "embodiment", "example", "one embodiment", "exemplary" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail in an exemplary manner with reference to the accompanying drawings.

[0042] The utility model relates to a kind of new energy battery pack's detachment device, as shown in Figs. 1-3 It includes box 1;Temperature sensor, battery module and elastic push-out component 2 are equipped in box 1;Box 1 side is provided with burst structure layer 4;Battery module includes multiple battery monomer 3 side by side in box 1, elastic push-out component 2 can drive battery monomer 3 to impact burst structure layer 4 when temperature sensor detects temperature anomaly, so that battery monomer 3 is separated from box 1.

[0043] The new energy battery pack disengagement device of the application, the box body 1 is internally provided with a temperature sensor, which can detect the temperature anomaly inside the box body 1, control the elastic push-out component 2 in the box body 1 to drive the battery monomer 3 to disengage from the box body 1 in time, prevent the abnormal battery inside the box body 1 from causing harm to the vehicle and personnel, and if the battery monomer 3 is self-ignited, the temperature will also be abnormal, the battery monomer 3 can be popped out of the box body 1 in time by controlling the elastic push-out component 2, without the help of external force to make the battery monomer 3 quickly disengage from the box body 1, thereby reducing the safety hazard; a plurality of battery monomers 3 are arranged side by side in the battery module inside the box body 1, and the side of the box body 1 is provided with a blasting structure layer 4, when the temperature inside the box body 1 where the battery monomer 3 is located exceeds the preset temperature at which the battery monomer 3 is dangerous, the elastic push-out component 2 can drive the battery monomer 3 to impact the blasting structure layer 4, the blasting structure layer 4 can be easily blasted under the impact of the battery monomer 3, thereby reducing the resistance of the battery monomer 3 to disengage from the box body 1, so that the battery monomer 3 is timely disengaged from the box body 1.

[0044] The battery monomer 3 can have various arrangement modes, and can be arranged in an array along the length direction and the width direction of the box body 1, as a preferred embodiment, a plurality of battery monomers 3 are respectively connected to the two sides in the box body 1 and are distributed at equal intervals along the extension direction of the box body 1;

[0045] The structure of the elastic push-out component 2 can have various embodiments and is not limited by the application, and any of the following embodiments can be adopted:

[0046] In the first embodiment, the elastic push-out component 2 includes a plurality of elastic air bags arranged at the center of the box body 1, and the elastic air bags are distributed at intervals along the extension direction of the box body 1 between the two battery monomers 3 arranged oppositely. Thus, the elastic air bags in the middle can be inflated to impact the battery monomers 3 on both sides, thereby driving the battery monomers 3 to directly impact the blasting structure layer 4 arranged at the side of the box body 1 from both sides of the elastic air bags.

[0047] Preferably, the battery monomers 3 can be arranged on both sides of the box body 1, and the battery monomers 3 on each side are distributed at equal intervals along the extension direction of the box body 1, and a row of elastic air bags can be arranged at the center of the box body 1 between the two battery monomers 3 arranged oppositely on both sides. In this way, when the temperature in the box body 1 exceeds the preset value, the inflation of the elastic air bags can drive the battery monomers 3 on both sides to impact the blasting structure layer 4 arranged at the side of the box body 1, so that the battery monomers 3 on both sides are directly impacted out of the side of the box body 1, without causing mutual interference of the battery monomers 3.

[0048] Further, the elastic air bag is connected with a gas generator, and the elastic air bag is controlled to expand by the gas generator to drive the battery monomer 3 on both sides to impact the blasting structure layer 4 and separate from the box body 1.

[0049] The elastic air bag is in a deflated state in a normal case and does not interfere with the battery monomer 3 or affect the space of the battery monomer 3 in the box body 1. Once the temperature sensor detects that the temperature is abnormal, the battery controller 10 receives the signal sent by the temperature sensor, the battery controller 10 drives the circuit to send a starting signal to the gas generator of the elastic air bag, the gas generator ignites the gas generating agent after receiving the signal, a large amount of nitrogen gas is generated in the elastic air bag, so that the elastic air bag can expand rapidly in a short time, and the elastic air bag pushes the battery monomer 3 on both sides to pass through the blasting structure layer 4 on both sides and is ejected out of the box body 1 under the action of the gas pressure.

[0050] In the second embodiment, the elastic pushing-out component 2 includes a positioning plate, a thick spring and a pushing assembly; the positioning plate is connected to the inside of the box body 1, one side of the thick spring is connected to the positioning plate, and the side of the thick spring facing the battery monomer 3 is connected with the pushing assembly; the pushing assembly is connected with the positioning plate through magnetic attraction, and the thick spring releases the elastic force by disconnecting the pushing assembly and the positioning plate, and the pushing assembly moves towards the battery monomer 3 to drive the battery monomer 3 to impact the blasting structure layer 4.

[0051] In addition to using the elastic air bag to push the battery monomer 3 out of the box body 1, the thick spring can also be used to push the battery monomer 3 out of the box body 1, and the positioning plate is used to connect to the inside of the box body 1 to position and fix the thick spring, and the other end of the thick spring can be extended or shortened to push the pushing assembly to drive the battery monomer 3 to impact the box body 1; the other end of the thick spring is connected with the pushing assembly, the pushing assembly can be connected with the positioning plate through magnetic attraction, in the initial state, the pushing assembly and the positioning plate are connected through magnetic attraction, and the thick spring is in a compressed state between the pushing assembly and the positioning plate, when the temperature sensor detects that the temperature is abnormal, the battery controller 10 controls the pushing assembly to lose the magnetic force, so that the pushing assembly is disconnected with the positioning plate, and the elastic force stored in the thick spring in the compressed state is released at the moment when the pushing assembly and the positioning plate are disconnected, so that the pushing assembly moves towards the battery monomer 3 under the action of the elastic force of the thick spring, and the battery monomer 3 is driven by the pushing assembly to impact the blasting structure layer 4, and when the blasting structure layer 4 is blasted, the battery monomer 3 is ejected out of the box body 1, so that the battery monomer 3 can be quickly separated from the vehicle body without external force.

[0052] It should be noted that in order to prevent electric shock caused by electric leakage, the thick spring is provided with an insulating layer.

[0053] Further, the pushing assembly comprises a pushing plate slidingly connected inside the box body 1, and the pushing plate is connected with an electromagnetic suction column on the side facing the positioning plate, and the positioning plate is connected with a magnetic block magnetically connected with the electromagnetic suction column.

[0054] The pushing plate of the pushing assembly is slidingly connected inside the box body 1, so that when the elastic force of the rough spring acts on the pushing plate, the pushing plate slides along the box body 1 to drive the battery monomer 3 to impact and break the structure layer 4; since the pushing plate assembly needs to be in a magnetic attraction state with the positioning plate in the initial state, an electromagnetic suction column is arranged on the pushing plate, and a magnetic block is arranged on the positioning plate, and when the electromagnetic suction column is powered on, a magnetic force is generated to attract the magnetic block, so that the pushing assembly and the positioning plate are kept connected, and the rough spring is compressed between the pushing assembly and the positioning plate to store elastic force, so as to release the elastic force to drive the pushing plate to push the battery monomer 3 to break the blasting structure layer 4 and separate from the box body 1.

[0055] For the structure of the pushing plate, the application does not make specific limitations, and a protruding part can be provided on the side facing the battery monomer 3, and the protruding part contacts the battery monomer 3 to give the battery monomer 3 a pushing force. The way the bottom of the pushing plate is slidingly connected to the box body 1 is not specifically limited, and the pushing plate can be in contact with the bottom of the box body 1, or a recessed sliding groove can be provided on the bottom wall of the box body 1, and the pushing plate can move along the sliding groove, or a protruding sliding rail can be provided on the bottom wall of the box body 1, and the pushing plate can move along the sliding rail.

[0056] It should be noted that if the battery monomer 3 is distributed along the two sides of the box body 1, and the battery monomers 3 on each side are distributed at intervals along the extension direction of the box body 1, i.e., the length direction, in order to realize the pushing assembly driving the battery monomers 3 on both sides in the embodiment, rough springs and pushing assemblies need to be connected on both sides of the positioning plate, so that the rough springs on both sides of the positioning plate release elastic force to respectively push the pushing assemblies to apply a pushing force to the battery monomers 3 to drive the battery monomers 3 to impact and break the blasting structure layer 4.

[0057] As a preferred embodiment, the blasting structure layer 4 is made of pp-GF30 material.

[0058] PP-GF30 material is a reinforced polypropylene, which has good tensile properties, but the impact resistance is relatively low compared to steel. One of the purposes of using this material to make the side of the box body 1 is to enable the box body 1 to achieve a thin structure, and the low impact resistance of the material can effectively reduce the resistance of the battery monomer 3 impacting the box body 1 when the battery monomer 3 impacts the blasting structure layer 4, so that the side of the box body 1 can be quickly broken under the impact of the battery monomer 3, so that the battery monomer 3 can quickly separate from the vehicle body, and the battery monomers 3 are dispersed and no longer gathered, thereby avoiding the phenomenon of rapid combustion caused by the gathering of the battery, greatly reducing the injury to the passengers.

[0059] As a preferred embodiment, a smoke sensor is further connected in the box 1, for detecting whether the smoke amount in the box 1 exceeds a preset value, and for controlling the elastic push-out member 2 to drive the battery monomer 3 to separate from the box 1 when the smoke amount exceeds the preset value.

[0060] The smoke sensor can detect abnormal conditions in the box 1 together with the temperature sensor, wherein when the smoke amount in the box 1 exceeds a preset threshold value, a signal is sent to the battery controller 10, and the battery controller 10 controls the elastic push-out member 2 to drive the battery monomer 3 to impact and break the structure layer 4. Similarly, when the temperature in the box 1 exceeds a preset temperature value, a signal is sent to the battery controller 10, and the battery controller 10 controls the elastic push-out member 2 to drive the battery monomer 3 to impact and break the structure layer 4.

[0061] As a preferred embodiment, the box 1 includes a base 5, a surrounding plate connected to the base 5, and an upper cover 7 connected to the surrounding plate; the base 5 is provided with a plurality of battery mounting positions for accommodating the battery monomer 3; the surrounding plate includes a front surrounding plate 61 and a rear surrounding plate 6 arranged opposite to each other, and a side surrounding plate 62 connected between the front surrounding plate 61 and the rear surrounding plate 6; the side surrounding plate 62 is connected with the break structure layer 4.

[0062] Preferably, a plurality of baffles can be arranged on the base 5 along the extension direction of the box 1, and a battery mounting position for mounting the battery monomer 3 is formed between adjacent two baffles. The battery monomers 3 are arranged on both sides of the box 1, and the elastic push-out member 2 is arranged between the battery monomers 3 on both sides. In this way, the elastic push-out member 2 can push the battery monomers 3 to both sides.

[0063] In this application, preferably, the side surrounding plate 62 in the box 1 adopts the break structure layer 4, which is beneficial for the battery monomer 3 to impact and separate from the box 1 from the side of the box 1; the front surrounding plate 61, the rear surrounding plate 6, the base 5, and the upper cover 7 of the box 1 are all made of steel. The battery monomer 3 only damages the break structure layer 4 and does not damage the upper cover 7, the base 5, the front surrounding plate 61, and the rear surrounding plate 6, thereby reducing the damage to the vehicle and the harm to the passengers.

[0064] Further, the front surrounding plate 61 is connected with an explosion-proof valve 8; the front surrounding plate 61 is further connected with a high-pressure interface 11 and a low-pressure interface 12 at the end of the battery, and the battery controller 10.

[0065] The explosion-proof valve 8 is arranged to open to release pressure and release a large amount of heat when the internal pressure of the box body 1 increases due to temperature rise and exceeds a preset value, so that the box body 1 is prevented from being deformed due to excessive internal pressure, and the battery pack is prevented from exploding due to excessive pressure. When temperature abnormity or smoke abnormity occurs, the explosion-proof valve 8 can be started to release pressure, and then the elastic push-out component 2 is driven to drive the battery monomer 3 to be separated from the box body 1, so that double protection is realized on the battery pack, and the probability of danger is greatly reduced.

[0066] Further, the liquid cooling plate 9 is connected in the box body 1, and the cooling liquid pipeline is connected to the liquid cooling plate 9.

[0067] The liquid cooling plate 9 is arranged above the battery module, and the purpose is to cool the box body 1 and the battery module through the flowing cooling liquid in the liquid cooling plate 9, so as to prevent the battery module from being affected by high temperature and causing thermal expansion or spontaneous combustion. The cooling liquid pipeline is connected to the liquid cooling plate 9 in a serpentine shape to increase the flow area and thus increase the cooling area. The cooling liquid pipeline has a water outlet and a water inlet. The cooling liquid in the cooling liquid pipeline enters the cooling liquid pipeline through the water inlet. The cooling liquid cools the battery module and the box body 1, and then flows out through the water outlet, so as to realize the recycling of the cooling liquid and reduce the energy consumption.

[0068] The parts not described in the utility model can be realized by using or referring to the existing technology.

[0069] Each embodiment in the specification is described in a progressive manner, and the same and similar parts between each embodiment can be referred to each other. Each embodiment mainly describes the difference from other embodiments.

[0070] The above is only an embodiment of the utility model, and is not used to limit the utility model. For those skilled in the art, the utility model can be changed and varied. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the claim range of the utility model.

Claims

1. A device for disconnecting a new energy battery pack, characterized in that: The invention comprises a box body; a temperature sensor, a battery module and an elastic ejection member are arranged in the box body; an explosive structure layer is arranged on the side of the box body; the battery module includes a plurality of battery cells arranged side by side in the box body, and the elastic ejection member can drive the battery cells to impact the explosive structure layer when the temperature sensor detects a temperature abnormality, so that the battery cells are separated from the box body; The box body includes a base, a panel connected to the base, and an upper cover connected to the panel; the base is provided with a plurality of battery mounting positions for placing the battery cells; the panel includes a front panel and a rear panel arranged opposite to each other, and a side panel connected between the front panel and the rear panel; the side panel is connected to a blasting structure layer.

2. The device for disengaging a new energy battery pack according to claim 1, characterized in that: Multiple battery cells are respectively connected to both sides of the box body and are distributed at equal intervals along the extension direction of the box body; the elastic pushing member includes multiple elastic airbags arranged in the center of the box body, and the multiple elastic airbags are distributed at intervals between two relatively arranged battery cells along the extension direction of the box body.

3. The detachment device for a new energy battery pack according to claim 2, characterized in that: The elastic airbag is connected to a gas generator, and the gas generator controls the elastic airbag to expand so as to drive the battery cells on both sides to impact the explosion structure layer and separate from the box body.

4. The device for disengaging a new energy battery pack according to claim 1, characterized in that: The elastic pushing component includes a positioning plate, a coarse spring and a pushing assembly; the positioning plate is connected to the box body, one side of the coarse spring is connected to the positioning plate, and the side of the coarse spring facing the battery cell is connected to the pushing assembly; the pushing assembly is connected to the positioning plate by magnetic attraction, and the connection between the pushing assembly and the positioning plate is disconnected so that the coarse spring releases the elastic force, pushing the pushing assembly toward the battery cell to drive the battery cell to impact the blasting structure layer.

5. The device for disengaging a new energy battery pack according to claim 4, characterized in that: The pushing assembly includes a push plate slidably connected to the inside of the box body, the push plate is connected to an electromagnetic suction column on the side facing the positioning plate, and the positioning plate is connected to a magnetic block magnetically connected to the electromagnetic suction column corresponding to the electromagnetic suction column.

6. The device for disengaging a new energy battery pack according to claim 1, characterized in that: The blasting structure layer is made of pp-GF30 material.

7. The device for disengaging a new energy battery pack according to claim 1, characterized in that: The box body is also connected to a smoke sensor for detecting whether the amount of smoke inside the box body exceeds a preset value. When the amount of smoke exceeds the preset value, the sensor is used to control the elastic pushing member to drive the battery cell out of the box body.

8. The device for disengaging a new energy battery pack according to claim 1, characterized in that: The front panel is connected to an explosion-proof valve; the front panel is also connected to a high-voltage interface, a low-voltage interface and a battery controller.

9. The device for disengaging a new energy battery pack according to claim 8, characterized in that: A liquid cooling plate is connected in the box body, a cooling liquid pipeline is connected to the liquid cooling plate, and the cooling liquid pipeline has a water inlet and a water outlet.

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