Battery module and chassis structure applied to new energy commercial vehicle

Abstract

The specification discloses a battery module and chassis structure applied to a new energy commercial vehicle, and relates to the technical field of new energy commercial vehicles. The battery module comprises a battery box and a through longitudinal beam. The battery box has a first power storage space, a second power storage space, a third space and a fourth space. The third space is located at the top of the battery box, the fourth space is located below the third space, and the first power storage space and the second power storage space arranged on both sides of the through longitudinal beam are communicated through the fourth space. The middle section of the hollow through longitudinal beam is arranged in the third space, and the first end and the second end of the through longitudinal beam are exposed. The first power storage space and the second power storage space are used for directly placing battery cells, and the fourth space is used for directly placing battery cells and / or spreading fireproof substances. It can be seen that the battery module greatly improves the strength and safety of the battery box while ensuring the energy density of the battery box through the design of the through longitudinal beam.

Description

Technical Field

[0001] This specification relates to the field of new energy commercial vehicle technology, and in particular to a battery module and chassis structure for use in new energy commercial vehicles. Background Technology

[0002] With the gradual development of new energy technologies, more and more commercial vehicles are also applying these technologies. Typically, commercial vehicles use electricity as their primary energy source, driving them through components such as electric motors and electric drive axles.

[0003] In existing technologies, the battery systems of new energy commercial vehicles typically adopt a combination of standard boxes and battery frames.

[0004] However, this method is based on the modification of traditional chemical energy commercial vehicles. For new energy commercial vehicles, there are problems such as structural redundancy, low energy density, complex structure, and heavy weight. Summary of the Invention

[0005] This specification provides a battery module and chassis structure for use in new energy commercial vehicles, in order to at least partially solve the aforementioned problems existing in the prior art.

[0006] The following technical solution is adopted in this specification:

[0007] This specification provides a battery module for use in new energy commercial vehicles, including a battery box and a through-type longitudinal beam;

[0008] The battery box contains a first energy storage space, a second energy storage space, a third space, and a fourth space;

[0009] The third space is located at the top of the battery box, and the fourth space is located below the third space; the first energy storage space and the second energy storage space are respectively disposed on both sides of the third space and the fourth space; the first energy storage space and the second energy storage space are connected through the fourth space.

[0010] The through-beam is a hollow tubular structure. The middle section of the through-beam is located in the third space. The first and second ends of the through-beam pass through the battery box and are exposed to the outside. The internal space of the through-beam is connected to the outside of the battery box. The outer wall of the through-beam and the inner wall of the battery box form a sealed space.

[0011] The first and second energy storage spaces are used to directly place the battery cells, and the fourth space is used to directly place the battery cells and / or transport fire-retardant materials.

[0012] Preferably, the battery module used in new energy commercial vehicles further includes a front fixing component and a rear fixing component;

[0013] The front fastener is fixedly connected to the first end of the through-type longitudinal beam and to the outer surface of the battery box, for connection to the front frame of the new energy commercial vehicle;

[0014] The rear fastener is fixedly connected to the second end of the through-type longitudinal beam and to the outer surface of the battery box, for connection to the rear frame of the new energy commercial vehicle.

[0015] Preferably, the battery box further includes a first side plate and a second side plate disposed opposite to each other;

[0016] Both the first side plate and the second side plate have through holes on their surfaces, and the size of the through holes is adapted to the through longitudinal beam.

[0017] The first and second ends of the through-beam pass through the through hole and are exposed to the outside;

[0018] The first side plate is fixedly connected to the front fixing member;

[0019] The second side plate is fixedly connected to the rear fixing member.

[0020] Preferably, the battery module used in new energy commercial vehicles further includes a front suspension assembly and a rear suspension assembly;

[0021] Both the front suspension assembly and the rear suspension assembly include a support component and a fixing connector;

[0022] The lifting member can fit tightly against the bottom of the battery box, and the fixing connector of the front suspension assembly can be fixedly connected to the front fixing member; the fixing connector of the rear suspension assembly can be fixedly connected to the rear fixing member.

[0023] Preferably, the battery box includes multiple box body crossbeams, multiple box body longitudinal beams, and multiple support beams;

[0024] The main body of the through-beam is located inside the battery box, and the through-beam, the multiple box crossbeams, the multiple box longitudinal beams, and the multiple support beams are interconnected.

[0025] Preferably, the battery module used in new energy commercial vehicles further includes at least one extended battery box, and the bottom of the extended battery box is provided with multiple extended battery connectors, and the top of the extended battery box is provided with multiple extended interfaces.

[0026] The top of the battery box is equipped with multiple expansion interfaces and / or multiple fixed interfaces, and the multiple expansion interfaces are respectively adapted to the multiple expansion battery connectors;

[0027] The third side panel of the battery box is equipped with a charging interface and / or multiple fixing interfaces.

[0028] Preferably, the first end and the second end are open, and the hollow through-beam can accommodate the connecting pipeline to pass through.

[0029] Preferably, the battery module used in new energy commercial vehicles further includes fire-resistant components;

[0030] The bottom of the through-beam has multiple through holes, and the fireproof component is disposed inside the through-beam.

[0031] The fireproof component can be activated, and the activated fireproof component can release fireproof material, which can pass through the multiple through holes and be released into the fourth space.

[0032] Preferably, the fire protection component includes connecting pipes, a spray pump, multiple spray elements, a temperature sensor and / or a smoke sensor;

[0033] The positions of the multiple spray elements are all adapted to the through holes opened at the bottom of the through-beam, and they face the fourth space;

[0034] The connecting pipe is connected to the plurality of spray components respectively, and the connecting pipe is also connected to the cooling system of the new energy commercial vehicle;

[0035] The spray pump is installed in the connecting pipeline and is communicatively connected to the temperature sensor and / or the smoke sensor. It can receive alarm signals sent by the temperature sensor and / or the smoke sensor, activate in response to the alarm signal, and deliver the coolant in the cooling system to the multiple spray elements.

[0036] Preferably, the cooling system and / or the connecting pipeline are further provided with an external interface, which can be opened to provide fire extinguishing liquid to the plurality of spray elements.

[0037] Preferably, the battery module used in new energy commercial vehicles further includes fire-resistant components;

[0038] The fireproof component is disposed within the fourth space.

[0039] Preferably, the fireproof component includes a first container, a second container, a connecting valve, a temperature sensor, and / or a smoke sensor;

[0040] The connecting valve is disposed between the first container and the second container, and the connecting valve can be opened and closed; the connecting valve in the closed state is used to isolate the material transfer between the first container and the second container; the connecting valve in the open state allows the material transfer between the first container and the second container.

[0041] The first container stores a first fire-retardant component, and the second container stores a second fire-retardant component. When the first fire-retardant component and the second fire-retardant component are mixed, a large amount of fire-retardant material can be generated.

[0042] The connecting valve is also communicatively connected to the temperature sensor and / or the smoke sensor, and is able to receive alarm signals sent by the temperature sensor and / or the smoke sensor, and switch to the open state in response to the alarm signal.

[0043] Preferably, the battery box includes multiple box body crossbeams, multiple box body longitudinal beams, and multiple support beams;

[0044] The main body of the through-beam is located inside the battery box, and the through-beam, the multiple box crossbeams, the multiple box longitudinal beams, and the multiple support beams are interconnected.

[0045] Preferably, the battery module used in new energy commercial vehicles further includes at least one extended battery box, the bottom of which is provided with multiple extended battery connectors, and the top of which is provided with multiple extended interfaces;

[0046] The top of the battery box is equipped with multiple expansion interfaces and / or multiple fixed interfaces, and the multiple expansion interfaces are respectively adapted to the multiple expansion battery connectors;

[0047] The third side panel of the battery box is equipped with a charging interface and / or multiple fixing interfaces.

[0048] Preferably, the hollow through-beam has an open first end and a second end, which can accommodate connecting pipelines passing through.

[0049] On the other hand, this specification provides a chassis structure for use in new energy commercial vehicles, including the battery module for use in new energy commercial vehicles provided in any of the above aspects, as well as a front frame and a rear frame.

[0050] On the other hand, this specification provides a new energy commercial vehicle, including the battery module for new energy commercial vehicles provided in any of the above aspects, or the chassis structure for new energy commercial vehicles provided in any of the above aspects.

[0051] The above-mentioned technical solutions adopted in this specification can achieve the following beneficial effects:

[0052] Based on the above, the battery module for new energy commercial vehicles includes a battery box, a through-type longitudinal beam, a first battery unit, and a second battery unit. The battery box contains a first energy storage space, a second energy storage space, and a third space. The through-type longitudinal beam is disposed within the third space, and the first and second energy storage spaces are respectively disposed on the left and right sides of the through-type longitudinal beam. The through-type longitudinal beam is a hollow tubular structure, with its first and second ends passing through the battery box and exposed, and both ends being open. The first battery unit is disposed within the first energy storage space, and the second battery unit is disposed within the second energy storage space.

[0053] As can be seen from the above, this battery module, through the design of a through-beam, significantly improves the strength and safety of the battery box while ensuring the energy density of the battery box. Attached Figure Description

[0054] The accompanying drawings, which are included to provide a further understanding of this specification and form part of this specification, illustrate exemplary embodiments and are used to explain this specification, but do not constitute an undue limitation thereof. In the drawings:

[0055] Figure 1 This is a structural schematic diagram of a battery module used in new energy commercial vehicles, as described in this specification.

[0056] Figure 2 A schematic diagram of the internal space distribution of the battery box is provided for one embodiment of this specification;

[0057] Figure 3 A partial structural diagram of the battery box provided for one embodiment of this specification;

[0058] Figure 4 A partial structural schematic diagram of the battery box provided for one embodiment of this specification;

[0059] Figure 5 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0060] Figure 6 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0061] Figure 7 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0062] Figure 8A schematic diagram of the front suspension assembly provided for one embodiment of this specification;

[0063] Figure 9 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0064] Figure 10 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0065] Figure 11 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0066] Figure 12 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, provided as an embodiment of this specification;

[0067] Figure 13 A structural schematic diagram of a chassis structure for use in new energy commercial vehicles, provided as an embodiment of this specification;

[0068] Figure 14 This is a structural diagram of a chassis structure for use in new energy commercial vehicles, provided as an embodiment of this specification.

[0069] Explanation of reference numerals in the attached figures:

[0070] Battery box 1; through-type longitudinal beam 2; first battery unit 3; second battery unit 4; first energy storage space 11; second energy storage space 12; first end 21; second end 22; first side plate 13; front fixing component 51; rear fixing component 52; front suspension assembly 6; lifting component 61; fixing connector 62; box body crossbeam 14; box body longitudinal beam 15; support beam 16; fireproof material 71; fourth space 72; connecting valve 73; connecting pipe 74; spray component 75; third space 76; extended battery box 81; front frame 91; rear frame 92. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this specification clearer, the technical solutions of this specification will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this specification without creative effort are within the scope of protection of this application.

[0072] In the description of this invention, it should be noted that the term "or" is generally used to include the meaning of "and / or" unless otherwise expressly stated in the content.

[0073] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0074] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0075] The technical solutions provided in the various embodiments of this specification are described in detail below with reference to the accompanying drawings.

[0076] Figure 1 This is a structural diagram of a battery module used in new energy commercial vehicles, as described in this specification. Figure 1 As shown, the battery module used in new energy commercial vehicles includes a battery box 1, a through-type longitudinal beam 2, a first battery unit 3, and a second battery unit 4.

[0077] Preferably, the battery box 1 contains a first energy storage space 11, a second energy storage space 12, a third space 76, and a fourth space 72.

[0078] Preferably, the third space 76 is located at the top of the battery box 1, the fourth space 72 is located below the third space 76, and the first energy storage space 11 and the second energy storage space 12 are connected through the fourth space 72.

[0079] Preferably, the large-size blade battery can penetrate the first energy storage space 11, the fourth space 72 and the second energy storage space 12, and be placed horizontally inside the battery box 1.

[0080] Preferably, the first energy storage space 11 and the second energy storage space 12 are respectively disposed on both sides of the third space 76 and the fourth space 72.

[0081] Figure 2 A schematic diagram of the internal space distribution of the battery box 1 provided for one embodiment of this specification is shown below. Figure 2 As shown, the third space 76 is located at the top of the battery box 1, the fourth space 72 is located below the third space 76, the first energy storage space 11 and the second energy storage space 12 are connected through the fourth space 72, and the first energy storage space 11 and the second energy storage space 12 are respectively arranged on both sides of the third space 76 and the fourth space 72.

[0082] Preferably, the first energy storage space 11 and the second energy storage space 12 are used to directly place the battery cell, and the fourth space 72 is used to directly place the battery cell and / or spread the fire-retardant material 71.

[0083] Preferably, the direct placement of the battery cells means that multiple battery cells are directly arranged and placed inside the battery box 1 without using an additional modular battery box.

[0084] Preferably, the middle section of the through-beam 2 is located within the third space, that is, the middle section of the through-beam 2 is located inside the battery box 1.

[0085] Figure 3 A partial structural schematic diagram of the battery box 1 provided in one embodiment of this specification is shown below. Figure 3 As shown, the first energy storage space 11 and the second energy storage space 12 are respectively disposed on both sides of the third space 76 and the fourth space 72.

[0086] Preferably, the through-beam 2 is a hollow tubular structure.

[0087] Preferably, the first end 21 and the second end 22 of the through-beam 2 pass through the battery box 1 and are exposed to the outside.

[0088] Preferably, the internal space of the through-beam 2 is connected to the external space of the battery box 1.

[0089] Preferably, the outer wall of the through-beam 2 and the inner wall of the battery box 1 form a sealed space.

[0090] Figure 4 A partial structural schematic diagram of the battery box 1 provided in one embodiment of this specification is shown below. Figure 4 As shown, the first end 21 and the second end 22 of the through-beam 2 pass through the battery box 1 and are exposed.

[0091] Preferably, both the first end 21 and the second end 22 are open.

[0092] Preferably, the first battery unit 3 is disposed in the first energy storage space 11, and the second battery unit 4 is disposed in the second energy storage space 12.

[0093] Based on the above embodiments, the battery module applied to new energy commercial vehicles includes a battery box 1, a through-beam 2, a first battery unit 3, and a second battery unit 4. The battery box 1 contains a first energy storage space 11, a second energy storage space 12, and a third space. The through-beam 2 is disposed within the third space, and the first energy storage space 11 and the second energy storage space 12 are respectively disposed on the left and right sides of the through-beam 2. The through-beam 2 is a hollow tubular structure, with its first end 21 and second end 22 passing through the battery box 1 and exposed, and both ends 21 and 22 are open. The first battery unit 3 is disposed within the first energy storage space 11, and the second battery unit 4 is disposed within the second energy storage space 12.

[0094] As can be seen from the above equipment, the battery module, through the design of the through-beam 2, not only ensures the energy density of the battery box 1, but also significantly improves the strength of the battery box 1 and enhances its safety.

[0095] Preferably, the battery module used in the new energy commercial vehicle further includes a front fixing member 51 and a rear fixing member 52. The front fixing member 51 is fixedly connected to the first end 21 of the through-beam 2 and to the outer surface of the battery box 1, for connection to the front frame 91 of the new energy commercial vehicle. The rear fixing member 52 is fixedly connected to the second end 22 of the through-beam 2 and to the outer surface of the battery box 1, for connection to the rear frame 92 of the new energy commercial vehicle.

[0096] As can be seen from the above, the battery module is directly connected to the front frame 91 and rear frame 92 of the new energy commercial vehicle via the front fixing member 51 and the rear fixing member 52. In other words, the new energy commercial vehicle equipped with this battery module does not have a mid-frame; the battery module serves as the mid-frame.

[0097] Preferably, the front fixing member 51 and the rear fixing member 52 are fixedly connected to the outer surface of the battery box 1 by welding.

[0098] It should be emphasized that the connection technology between mechanical structures has been developed to a relatively mature level. When connecting any two components provided in this manual, various methods such as welding and / or riveting and / or bolting can be used, and this manual does not impose any restrictions on this.

[0099] Preferably, the battery box 1 further includes a first side plate 13 and a second side plate disposed opposite to each other.

[0100] Preferably, both the first side plate 13 and the second side plate have through holes on their surfaces, and the size of the through holes is adapted to the through-beam 2. Accordingly, the first end 21 and the second end 22 of the through-beam 2 pass through the through holes and are exposed to the outside.

[0101] Preferably, the first side plate 13 is fixedly connected to the front fixing member 51, and the second side plate is fixedly connected to the rear fixing member 52.

[0102] Figure 5 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, as provided in one embodiment of this specification, is shown below. Figure 5 As shown, the first side plate 13 is fixedly connected to the front fixing member 51.

[0103] Preferably, the battery module used in new energy commercial vehicles further includes a front suspension assembly 6 and a rear suspension assembly. Both the front suspension assembly 6 and the rear suspension assembly include a support member 61 and a fixing connector 62. The support member 61 can fit snugly against the bottom of the battery box 1, and the fixing connector 62 of the front suspension assembly 6 can be fixedly connected to the front fixing member 51. The fixing connector 62 of the rear suspension assembly can be fixedly connected to the rear fixing member 52.

[0104] Figure 6 as well as Figure 7 These are partial structural diagrams of a battery module applied to new energy commercial vehicles, provided as an embodiment of this specification. Figure 6 as well as Figure 7 As shown, the fixing connector 62 of the front suspension assembly 6 is fixedly connected to the front fixing member 51, and the lifting member 61 of the front suspension assembly 6 is closely attached to the bottom of the battery box 1.

[0105] Figure 8 A schematic diagram of the front suspension assembly 6 provided for one embodiment of this specification is shown below. Figure 8 As shown, the front suspension assembly 6 includes a lifting member 61 and a fixing connector 62.

[0106] Preferably, the battery box 1 includes multiple box body crossbeams 14, multiple box body longitudinal beams 15, and multiple support beams 16.

[0107] Preferably, the main body of the through-beam 2 is located inside the battery box 1, and the through-beam 2, the plurality of box crossbeams 14, the plurality of box longitudinal beams 15 and the plurality of support beams 16 are interconnected.

[0108] like Figure 6 As shown, the through-beam 2, the multiple box-type crossbeams 14, the multiple box-type longitudinal beams 15, and the multiple support beams 16 are interconnected.

[0109] Preferably, the battery module used in new energy commercial vehicles also includes at least one extended battery box 81.

[0110] Preferably, the bottom of the extended battery box 81 is provided with multiple extended battery connectors, and the top of the extended battery box 81 is provided with multiple extended interfaces.

[0111] Preferably, the top of the battery box 1 is provided with multiple expansion interfaces and / or multiple fixed interfaces, which are respectively adapted to the multiple expansion battery connectors.

[0112] Preferably, the fixed interface includes a liquid cooling interface and / or a high-pressure interface and / or a low-pressure interface.

[0113] Preferably, the extended battery compartment 81 can be configured on top of the battery compartment 1.

[0114] Figure 9 A partial structural schematic diagram of a battery module applied to a new energy commercial vehicle, as provided in one embodiment of this specification, is shown below. Figure 9 As shown, the extended battery compartment 81 is configured on top of the battery compartment 1.

[0115] Preferably, the third side panel of the battery box 1 is equipped with a charging interface and / or multiple fixing interfaces, such as... Figure 4 As shown, the top of the battery box 1 is equipped with multiple fixing interfaces, and the third side plate of the battery box 1 is equipped with a charging interface.

[0116] Preferably, the fixing interface configured on the third side plate of the battery box 1 is the same as the fixing interface configured on the top of the battery box 1, both including a liquid interface and / or a gas interface and / or a circuit interface and / or a communication interface.

[0117] Preferably, the through-beam 2, which is open at the first end 21 and open at the second end 22 and is hollow, is capable of accommodating connecting pipelines passing through.

[0118] Preferably, the connecting pipeline is used to connect the front and rear ends of the new energy commercial vehicle.

[0119] Preferably, the connecting pipeline includes liquid pipelines and / or signal pipelines and / or gas pipelines, etc., which are not limited herein.

[0120] Preferably, the battery module used in new energy commercial vehicles also includes fireproof components.

[0121] Preferably, the battery box 1 also contains a fourth space 72, which is located below the through-beam 2.

[0122] Preferably, the bottom of the through-beam 2 has multiple through holes, and the fireproof component is disposed inside the through-beam 2.

[0123] Preferably, the fireproof component can be activated, and the activated fireproof component can release fireproof material 71, and the fireproof material 71 can pass through the plurality of through holes and be released into the fourth space 72.

[0124] Preferably, the fireproof component includes a connecting pipe 74, a spray pump, multiple spray elements 75, a temperature sensor, and / or a smoke sensor. The spray elements 75 are positioned to correspond to the through-hole at the bottom of the through-beam 2 and face the fourth space 72. The connecting pipe 74 is connected to each of the multiple spray elements 75 and also to the cooling system of the new energy commercial vehicle, whereby the connecting pipe 74 is used to transport coolant.

[0125] Preferably, the spray pump is disposed within the connecting pipe 74 and is communicatively connected to the temperature sensor and / or smoke sensor. It is capable of receiving alarm signals from the temperature sensor and / or smoke sensor, activating in response to the alarm signal, and delivering coolant from the cooling system to the plurality of spray nozzles 75. It should be emphasized that the activation of the spray pump signifies the activation of the fire protection component.

[0126] More preferably, the coolant is a fluoride or a 50% ethylene glycol solution, etc., but this specification does not impose any restrictions.

[0127] More preferably, the cooling system and / or the connecting pipe 74 are also provided with an external interface, which can be opened to provide fire extinguishing liquid to the spray element 75.

[0128] Further preferably, the fireproof component can also be configured within the fourth space.

[0129] Preferably, the fire-resistant component may also include a first container, a second container, a connecting valve 73, a temperature sensor, and / or a smoke sensor. The connecting valve 73 is disposed between the first container and the second container, and is capable of opening and closing. In the closed state, the connecting valve 73 isolates the transfer of substances between the first and second containers. In the open state, the connecting valve 73 allows the transfer of substances between the first and second containers. The first container stores a first fire-resistant component, and the second container stores a second fire-resistant component; the first and second fire-resistant components, when mixed, can generate a large amount of fire-resistant material. The connecting valve 73 is also communicatively connected to the temperature sensor and / or the smoke sensor, and can receive alarm signals sent by the temperature sensor and / or the smoke sensor, switching to the open state in response to the alarm signal. It should be emphasized that when the connecting valve 73 is opened, the fire-resistant component is activated.

[0130] Furthermore, the fireproof component includes a first container, a second container, a connecting valve 73, a temperature sensor and / or a smoke sensor, and when the fireproof component is configured within the through-beam 2, the battery module also includes a seal, which is configured at the first end 21 and the second end 22 of the through-beam 2, respectively, to seal the first end 21 and the second end 22, and to allow connecting pipelines to pass through.

[0131] Preferably, the battery box 1 is airtight. Specifically, except that the through-beam 2 is an open structure at both ends, no air flows between the inside and outside of the battery box 1.

[0132] More preferably, the battery box is equipped with an explosion-proof valve, which can be opened after the air pressure inside the battery box rises to a preset air pressure threshold, allowing the air inside the battery box to interact with the outside air, so that the spray element 75 can spray coolant.

[0133] Figure 10 , Figure 11 as well as Figure 12 These are partial structural diagrams of a battery module applied to new energy commercial vehicles, provided as an embodiment of this specification. Figure 10 as well as Figure 11 As shown, after the connecting valve 73 is opened, or the sprinkler pump is turned on, the fire-resistant components disposed inside the through-beam 2 are activated, and the fire-resistant material 71 can be output by the connecting valve 73 or the sprinkler component 75 connected to the connecting pipe 74, and released into the fourth space 72 through multiple through holes at the bottom of the through-beam 2. Figure 12 As shown, when the protective component configured in the fourth space 72 is activated, the fire-retardant material 71 can be output by the connecting valve 73 and released into the fourth space 72.

[0134] Preferably, both the first battery unit 3 and the second battery unit 4 include at least one sub-battery unit.

[0135] Preferably, the sub-battery unit includes an integrated acquisition board, a liquid cooling plate, a nano-temperature vapor chamber, and multiple battery cells. Furthermore, the integrated acquisition board, liquid cooling plate, nano-temperature vapor chamber, and multiple battery cells form a multi-layer structure, with each layer in contact via thermally conductive adhesive.

[0136] In a further preferred embodiment, multiple sub-battery units are fixed left and right by front and rear integrated structural clamps.

[0137] Further preferably, the integrated acquisition board and / or liquid cooling plate and / or nano heat spreader of different sub-cells can be a single unit.

[0138] Preferably, the battery box 1 also includes a concealed liquid cooling channel.

[0139] Preferably, the integrated sampling plate, liquid cooling interface, high-voltage interface and low-voltage interface are all located on the top of the battery box 1 to reduce pipelines.

[0140] Further preferably, the battery box 1 also includes an integrated cover. The integrated cover includes a composite material cover and an integrated panel. The integrated panel includes a liquid cooling interface, a high-voltage interface, and a low-voltage interface.

[0141] More preferably, the composite material cover plate and the integrated panel form a sealing structure to seal the entire body of the battery box 1.

[0142] Preferably, the battery box 1 further includes a plurality of non-standard long screws, which are used to fix the plurality of sub-battery units. More preferably, the plurality of non-standard long screws are also used to protect the plurality of sub-battery units.

[0143] Preferably, the battery box 1 also includes components such as a sealing ring, an explosion-proof valve, and a maintenance switch. The maintenance switch can disconnect the battery power supply when it is turned on or off. The sealing ring and the explosion-proof valve are used to maintain a sealed environment and maintain the air pressure inside the battery box 1.

[0144] Preferably, the battery box 1 also includes a high-voltage connection busbar and a low-voltage connection line.

[0145] Preferably, the high-voltage connection busbar is made of copper or aluminum.

[0146] Preferably, the battery box 1 uses an integrated data acquisition board to collect the electrical energy of multiple sub-battery units, and both the high-voltage busbar and the low-voltage connection line are directly connected to the integrated data acquisition board. Therefore, this method reduces the use of high- and low-voltage wiring harnesses, lowers costs, and improves safety.

[0147] As can be seen from the above, the battery module for new energy commercial vehicles provided in this specification also serves the function of the mid-section frame, and can be directly connected to the front frame 91 and rear frame 92 of the new energy commercial vehicle, reducing weight and increasing the energy density of the battery box 1. Furthermore, the battery box 1 has a high degree of integration, simplifying the structure, reducing costs, and minimizing size. Moreover, compared to traditional cell-chassis architectures, the battery module provided in this specification uses highly integrated sub-battery units, standardizing functions such as liquid cooling, low-voltage acquisition, high-voltage connection, and structural fixation, eliminating the use of structural adhesives or other difficult-to-remove connecting materials, thus significantly reducing maintenance costs. In addition, this invention places the expansion interface and fixing interface of the battery module on the top of the battery box 1, simplifying the pipeline layout. Furthermore, during after-sales maintenance, only the integrated cover plate needs to be removed, and the module can be hoisted to complete the repair and replacement, solving the problem of difficult maintenance in traditional solutions.

[0148] The above are one or more embodiments of the battery module for new energy commercial vehicles provided in this specification. Based on the same inventive concept, this specification also provides a chassis structure for new energy commercial vehicles.

[0149] Preferably, the chassis structure for new energy commercial vehicles includes the battery module for new energy commercial vehicles provided in any of the above embodiments, as well as the front frame 91 and the rear frame 92.

[0150] Figure 13 as well as Figure 14 All of these are structural diagrams of a chassis structure applied to new energy commercial vehicles, provided as an embodiment of this specification. Figure 13 as well as Figure 14 As shown, the front frame 91 and the rear frame 92 are respectively fixedly connected to the battery module used in new energy commercial vehicles.

[0151] The above are one or more embodiments of the battery module and chassis structure for new energy commercial vehicles provided in this specification. Based on the same inventive concept, this specification also provides a new energy commercial vehicle.

[0152] Preferably, the new energy commercial vehicle includes the battery module for new energy commercial vehicles provided in any of the above embodiments, or the chassis structure for new energy commercial vehicles provided in any of the above embodiments.

[0153] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0154] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0155] The above description is merely an embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of the claims of this application.

Claims

1. A battery module for use in new energy commercial vehicles, characterized in that, Including the battery box and the through-type longitudinal beam; The battery box contains a first energy storage space, a second energy storage space, a third space, and a fourth space; The third space is located at the top of the battery box, and the fourth space is located below the third space; the first energy storage space and the second energy storage space are respectively disposed on both sides of the third space and the fourth space; the first energy storage space and the second energy storage space are connected through the fourth space; the fourth space is located directly below the through-beam; the third space can only accommodate one through-beam. The through-beam is a hollow tubular structure. The middle section of the through-beam is located in the third space. The first and second ends of the through-beam pass through the battery box and are exposed to the outside. The internal space of the through-beam is connected to the outside of the battery box. The outer wall of the through-beam and the inner wall of the battery box form a sealed space. The number of through-beams is 1. The first and second energy storage spaces are used to directly place battery cells, and the fourth space is used to directly place battery cells and / or transport fire-retardant materials; the battery module applied to new energy commercial vehicles also includes a fire-retardant component; the bottom of the through-beam has multiple through holes, and the fire-retardant component is disposed inside the through-beam; the fire-retardant component can be activated, and the activated fire-retardant component can release fire-retardant materials, and the fire-retardant materials can pass through the multiple through holes and be released into the fourth space; the battery box is airtight.

2. The battery module for new energy commercial vehicles according to claim 1, characterized in that, The battery module used in new energy commercial vehicles also includes a front fixing component and a rear fixing component; The front fastener is fixedly connected to the first end of the through-type longitudinal beam and to the outer surface of the battery box, for connection to the front frame of the new energy commercial vehicle; The rear fastener is fixedly connected to the second end of the through-type longitudinal beam and to the outer surface of the battery box, for connection to the rear frame of the new energy commercial vehicle.

3. The battery module for new energy commercial vehicles according to claim 2, characterized in that, The battery box also includes a first side plate and a second side plate disposed opposite to each other; Both the first side plate and the second side plate have through holes on their surfaces, and the size of the through holes is adapted to the through longitudinal beam. The first and second ends of the through-beam pass through the through hole and are exposed to the outside; The first side plate is fixedly connected to the front fixing member; The second side plate is fixedly connected to the rear fixing member.

4. The battery module for new energy commercial vehicles according to claim 2, characterized in that, The battery module used in new energy commercial vehicles also includes a front suspension assembly and a rear suspension assembly; Both the front suspension assembly and the rear suspension assembly include a support component and a fixing connector; The lifting member can fit tightly against the bottom of the battery box, and the fixing connector of the front suspension assembly can be fixedly connected to the front fixing member; the fixing connector of the rear suspension assembly can be fixedly connected to the rear fixing member.

5. The battery module for new energy commercial vehicles according to claim 1, characterized in that, The fire protection components include connecting pipes, a spray pump, multiple spray elements, a temperature sensor and / or a smoke sensor; The positions of the multiple spray elements are all adapted to the through holes opened at the bottom of the through-beam, and they face the fourth space; The connecting pipe is connected to the plurality of spray components respectively, and the connecting pipe is also connected to the cooling system of the new energy commercial vehicle; The spray pump is installed in the connecting pipeline and is communicatively connected to the temperature sensor and / or the smoke sensor. It can receive alarm signals sent by the temperature sensor and / or the smoke sensor, activate in response to the alarm signal, and deliver the coolant in the cooling system to the multiple spray elements.

6. The battery module for new energy commercial vehicles according to claim 5, characterized in that, The cooling system and / or the connecting pipeline are also provided with an external interface, which can be opened to provide fire extinguishing liquid to the plurality of spray elements.

7. The battery module for new energy commercial vehicles according to claim 1, characterized in that, The fireproof component is also disposed within the fourth space.

8. The battery module for new energy commercial vehicles according to claim 7, characterized in that, The fire protection components include a first container, a second container, a connecting valve, a temperature sensor, and / or a smoke sensor; The connecting valve is disposed between the first container and the second container, and the connecting valve can be opened and closed; the connecting valve in the closed state is used to isolate the material transfer between the first container and the second container; the connecting valve in the open state allows the material transfer between the first container and the second container. The first container stores a first fire-retardant component, and the second container stores a second fire-retardant component. When the first fire-retardant component and the second fire-retardant component are mixed, a large amount of fire-retardant material can be generated. The connecting valve is also communicatively connected to the temperature sensor and / or the smoke sensor, and is able to receive alarm signals sent by the temperature sensor and / or the smoke sensor, and switch to the open state in response to the alarm signal.

9. The battery module for new energy commercial vehicles according to any one of claims 1-7, characterized in that, The battery box includes multiple box crossbeams, multiple box longitudinal beams, and multiple support beams; The main body of the through-beam is located inside the battery box, and the through-beam, the multiple box crossbeams, the multiple box longitudinal beams, and the multiple support beams are interconnected.

10. The battery module for new energy commercial vehicles according to any one of claims 1-7, characterized in that, The battery module used in new energy commercial vehicles also includes at least one extended battery box, the bottom of which is provided with multiple extended battery connectors and the top of which is provided with multiple extended interfaces. The top of the battery box is equipped with multiple expansion interfaces and / or multiple fixed interfaces. The multiple expansion interfaces configured in the battery box and any one of the extended battery boxes are respectively adapted to the multiple extended battery connectors configured in any one of the extended battery boxes. The third side panel of the battery box is equipped with a charging interface and / or multiple fixing interfaces.

11. The battery module for new energy commercial vehicles according to any one of claims 1-7, characterized in that, The hollow, through-beam, with its first and second ends open, is capable of accommodating connecting pipelines.

12. A chassis structure for use in new energy commercial vehicles, characterized in that, Includes the battery module for new energy commercial vehicles as described in any one of claims 1-11, as well as the front frame and the rear frame.

13. A new energy commercial vehicle, characterized in that, Includes the battery module for new energy commercial vehicles as described in any one of claims 1-11, or the chassis structure for new energy commercial vehicles as described in claim 12.

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