Battery transportation protection device
A battery transportation protection device. The battery transportation protection device includes a case, where the case includes a case cover and a case body. The case body has a first opening, and the case cover covers the first opening to define, together with the case body, a first accommodation cavity for accommodating a battery. A pressure relief channel is formed inside the case cover, and the pressure relief channel is in communication with the first accommodation cavity and configured to discharge gas from the first accommodation cavity.
1 . A battery transportation protection device, comprising:
a case, comprising a case cover and a case body, wherein the case body has a first opening, and the case cover covers the first opening to define, together with the case body, a first accommodation cavity for accommodating a battery, a second accommodation cavity is formed inside the case cover, a pressure relief channel is formed inside the case cover, and the pressure relief channel is in communication with the first accommodation cavity and configured to discharge gas from the first accommodation cavity; and
a plurality of pressure relief modules disposed in the second accommodation cavity and arranged in two rows, wherein each of the plurality of pressure relief modules is provided with a smoke inlet and a smoke outlet at two ends, respectively, an axis of the smoke inlet is parallel to an axis of the smoke outlet, the pressure relief channel is formed inside each of the plurality of pressure relief modules, and connects the smoke inlet and the smoke outlet of the each of the plurality of pressure relief modules;
wherein:
the plurality of pressure relief modules in each of the two rows are arranged along a first direction;
the two rows are spaced apart along a second direction, and the first direction is perpendicular to the second direction; and
a projection of the smoke inlet on a plane perpendicular to the second direction and a projection of the smoke outlet on the plane perpendicular to the second direction overlap with each other.
2 . The battery transportation protection device according to claim 1 , further comprising:
a gas collection cover, wherein the gas collection cover is disposed between the two rows of pressure relief modules and connected to the plurality of pressure relief modules;
wherein an internal space of the gas collection cover connects the first accommodation cavity and the plurality of smoke inlets.
3 . The battery transportation protection device according to claim 2 , wherein the gas collection cover is one of two gas collection covers connected to the two rows of pressure relief modules, respectively.
4 . The battery transportation protection device according to claim 1 , wherein each of the plurality of pressure relief modules comprises a housing and a filter, wherein an internal space of the housing forms the pressure relief channel, and the filter is disposed within the pressure relief channel.
5 . The battery transportation protection device according to claim 4 , wherein the filter comprises a stainless steel fiber filter, a glass fiber filter, and a ceramic fiber filter, wherein along a gas flow direction in the pressure relief channel, the stainless steel fiber filter, the glass fiber filter, and the ceramic fiber filter are arranged in sequence.
6 . The battery transportation protection device according to claim 4 , wherein each of the plurality of pressure relief modules further comprises a guide plate, wherein the guide plate is disposed within the housing.
7 . The battery transportation protection device according to claim 1 , wherein the case cover comprises a case cover frame, a first thermal insulation lining, and a second thermal insulation lining, wherein the case cover frame supports the plurality of pressure relief modules, the first thermal insulation lining and the second thermal insulation lining are both connected to the case cover frame, the first thermal insulation lining is disposed around the plurality of pressure relief modules, the second thermal insulation lining is disposed above the plurality of pressure relief modules, and the first thermal insulation lining and the second thermal insulation lining together enclose the second accommodation cavity.
8 . The battery transportation protection device according to claim 7 , wherein a material of the first thermal insulation lining comprises aerogel; and a material of the second thermal insulation lining comprises aerogel.
9 . The battery transportation protection device according to claim 7 , wherein the case cover further comprises a case cover outer plate, wherein the case cover outer plate is connected to the case cover frame, the case cover outer plate is disposed around the plurality of pressure relief modules, and the case cover outer plate is located on an outer side of the first thermal insulation lining.
10 . The battery transportation protection device according to claim 9 , wherein the first thermal insulation lining is provided with a first pressure relief port, the case cover outer plate is provided with a second pressure relief port corresponding to the first pressure relief port, and the first pressure relief port connects the second pressure relief port and the pressure relief channel.
11 . The battery transportation protection device according to claim 7 , wherein the case cover further comprises a case cover top plate, wherein the case cover top plate is connected to the case cover frame, and the case cover top plate is located on a side of the second thermal insulation lining facing away from the plurality of pressure relief modules.
12 . The battery transportation protection device according to claim 1 , further comprising:
a detection component disposed on the case, wherein the detection component is configured to detect an environmental parameter within the first accommodation cavity; and
a firefighting mechanism connected to the case cover, wherein the firefighting mechanism is configured to release a firefighting medium into the first accommodation cavity when the environmental parameter exceeds a threshold.
13 . The battery transportation protection device according to claim 12 , wherein the firefighting mechanism is located above the first accommodation cavity, and the firefighting mechanism is configured as capable of switching between a first state and a second state, wherein in the first state, the firefighting mechanism holds the firefighting medium; and in the second state, the firefighting mechanism releases the firefighting medium.
14 . The battery transportation protection device according to claim 13 , wherein:
the firefighting mechanism comprises a first support plate, wherein the first support plate is configured as capable of rotating about a first axis, an extension direction of the first axis being perpendicular to the direction of gravity; and
in the first state, the first support plate is in a horizontal posture to hold the firefighting medium; and in the second state, the first support plate is in a vertical posture or an inclined posture to release the firefighting medium.
15 . The battery transportation protection device according to claim 14 , further comprising:
a second support plate, wherein the second support plate is fixedly disposed relative to the case and in a horizontal posture to hold the firefighting medium, and the first support plate is rotatably connected to the second support plate;
wherein the detection component is disposed on the second support plate.
16 . The battery transportation protection device according to claim 12 , wherein the environmental parameter comprises at least one of temperature, combustible gas concentration, and air pressure.
17 . The battery transportation protection device according to claim 12 , wherein the firefighting medium comprises flame-retardant microbeads.
18 . The battery transportation protection device according to claim 17 , wherein the flame-retardant microbead comprises at least one of glass microbead, ceramic microbead, or mineral microbead.