Vertebra-free tower type power battery box assembly with heat management system and new energy vehicle

Abstract

The invention discloses an invertebrate tower type power battery box assembly with a heat management system and a new energy vehicle. The power battery pack comprises a battery cluster formed by stacking a plurality of power batteries PACK, and the adjacent power batteries PACK are connected; a bottom frame is designed below the battery cluster and is connected with a power battery PACK; the bottom of the left frame is connected with the left side of the bottom frame, and the bottom of the right frame is connected with the right side of the bottom frame; the heat management module comprises a water cooling unit and an expansion kettle, the water cooling unit is mounted in the bottom frame, and the expansion kettle is mounted on the right side frame and located between the battery cluster and the right side frame. In a limited space, the height of the battery box assembly of the new energy vehicle is reduced, the gravity center is lowered, the safety of the vehicle is improved, and the probability of vehicle accidents is reduced; the windward area of the vehicle is reduced, and energy consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, specifically to a spineless tower-type power battery pack assembly with a thermal management system and a new energy vehicle. Background Technology

[0002] The energy devices of new energy vehicles mainly consist of a battery pack assembly for storing electrical energy and a thermal management system.

[0003] The battery pack assemblies of existing new energy vehicles mostly adopt a layered integrated frame structure, which has low volume utilization and occupies a large space in the vehicle. The height exceeds the driver's cab, the center of gravity is relatively high, the safety is poor, and the weight is heavy. Under the certain requirements of total passenger and cargo weight and space, it reduces the profits of transportation companies and individuals.

[0004] There is an urgent need for a battery pack assembly structure that has high volume utilization and a lower center of gravity.

[0005] Content of this invention

[0006] This invention provides a spineless tower-type power battery pack assembly with a thermal management system and a new energy vehicle to solve at least one of the above-mentioned technical problems.

[0007] A spineless tower-type power battery pack assembly with a thermal management system includes a battery cluster and a battery frame, characterized in that the battery cluster includes a stacked structure of multiple power battery packs, with adjacent power battery packs connected together.

[0008] The battery frame includes a bottom frame for supporting the battery cluster, and the bottommost power battery PACK of the battery cluster is connected to the bottom frame;

[0009] The battery frame also includes a left side frame and a right side frame arranged on the left and right sides, respectively, which are arranged on the left and right sides of the battery cluster.

[0010] The bottom of the left frame is connected to the left side of the bottom frame, and the bottom of the right frame is connected to the right side of the bottom frame.

[0011] The battery frame also includes a ceiling frame, which is connected to the left frame, the top of the battery cluster, and the right frame, respectively.

[0012] It also includes a thermal management module, which includes a water-cooled unit and an expansion tank. The water-cooled unit is installed inside the bottom frame, and the expansion tank is installed on the right side frame and located between the battery cluster and the right side frame.

[0013] This invention utilizes battery clusters formed by directly stacking and connecting power battery packs, reducing the connection frames between adjacent power battery packs and lowering the center of gravity of the battery pack assembly. Simultaneously, this battery pack assembly effectively supports the thermal management module.

[0014] More preferably, the bottom of the bottom frame is connected to a contoured sub-beam structure for connecting the frame of a new energy vehicle.

[0015] In a further preferred embodiment, adjacent power battery packs are connected by mutually matching first bolts and first nuts.

[0016] More preferably, the power battery PACK has recessed bolt mounting grooves and recessed nut mounting grooves on both the front and rear sides.

[0017] The nut mounting groove and the bolt mounting groove are arranged vertically.

[0018] More preferably, the power battery PACK has an upper through hole and a lower through hole for the bolt to pass through, the upper through hole is connected to the nut mounting groove, and the lower through hole is connected to the bolt mounting groove.

[0019] The first bolt passes through the lower through hole of the upper power battery PACK and the upper through hole of the lower power battery PACK in sequence and is threadedly connected to the first nut.

[0020] More preferably, the bottom of the battery cluster is detachably connected to the bottom frame by a second bolt;

[0021] The second bolt passes through the lower perforation of the power battery pack located at the bottom of the battery cluster and connects to the bottom frame.

[0022] More preferably, the bottom frame has a threaded hole for a second bolt.

[0023] More preferably, the ceiling frame is detachably connected to the top of the battery cluster via a third bolt pair;

[0024] The ceiling frame has through holes for the third bolt assembly;

[0025] The third bolt of the third bolt assembly passes through the upper through hole of the power battery PACK located at the top of the battery cluster, and the third nut of the third bolt assembly is located in the nut mounting slot of the power battery PACK at the top of the battery cluster.

[0026] More preferably, the ceiling frame is detachably connected to the top of the battery cluster via a third bolt pair;

[0027] The ceiling frame has through holes for the third bolt assembly;

[0028] The third bolt of the third bolt assembly passes through the upper through hole of the power battery PACK located at the top of the battery cluster, and the third nut of the third bolt assembly is located in the nut mounting slot of the power battery PACK at the top of the battery cluster.

[0029] More preferably, the ceiling frame is connected to the left side frame by a fourth bolt;

[0030] The ceiling frame is connected to the right-side frame by a fifth bolt;

[0031] The left frame has a threaded hole for connecting the fourth bolt.

[0032] The right frame has a threaded hole for connecting the fifth bolt.

[0033] More preferably, the bottom frame is connected to the left frame by a sixth bolt;

[0034] The bottom frame is connected to the right frame by the seventh bolt.

[0035] More preferably, a mounting base is provided on the opposite side of the water-cooled unit, and the mounting base is detachably connected to the bottom frame by an eighth bolt.

[0036] More preferably, a battery management system (PDU) is installed inside the bottom frame, and a connecting seat is provided on the opposite side of the battery management system (PDU). The connecting seat is detachably connected to the bottom frame by a ninth bolt.

[0037] More preferably, the ceiling frame is connected to lifting rings for the transfer and assembly of the battery box.

[0038] More preferably, both the left frame and the right frame are provided with vertically arranged square frame structures;

[0039] The rectangular structure of the left frame surrounds the battery terminals on the left side of the power battery PACK.

[0040] The square frame structure of the right side frame surrounds the outside of the expansion tank, and a vertically installed mounting beam is connected to the right side frame. The mounting beam is connected to the expansion tank by a tenth bolt.

[0041] Battery terminals and expansion tanks are used to protect the power battery pack. The new energy vehicle is characterized by including the spineless tower-type power battery pack assembly with a thermal management system, wherein the bottom of the bottom frame is connected to a contoured sub-beam structure for connecting to the new energy vehicle frame;

[0042] The contoured sub-beam structure is connected to the new energy vehicle frame via multiple sets of bolts.

[0043] It can effectively support the weight of the battery box and withstand overload and torsional loads in the X, Y, and Z directions.

[0044] Beneficial effects: This invention reduces the height of the battery pack assembly in new energy vehicles within a limited space, lowers the center of gravity, improves vehicle safety, and reduces the probability of vehicle accidents; it also reduces the vehicle's frontal area, reduces vehicle weight, saves energy, and increases the profits of transportation companies and individuals. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present invention;

[0046] Figure 2 This is a schematic diagram of the connection between the power battery PACK and the power battery PACK in a specific embodiment 1 of the present invention;

[0047] Figure 3 This is a schematic diagram showing the connection between the power battery PACK and the bottom frame in a specific embodiment 1 of the present invention;

[0048] Figure 4 This is a schematic diagram of the connection of the ceiling frame in a specific embodiment 1 of the present invention;

[0049] Figure 5 This is a schematic diagram showing the connection between the left frame, the right frame, and the bottom frame in a specific embodiment 1 of the present invention;

[0050] Figure 6 This is a schematic diagram showing the connection between the water-cooled unit, the PDU battery distributor, and the bottom frame in a specific embodiment 1 of the present invention.

[0051] In the diagram, the left frame is 10, the ceiling frame is 11, the hanging ring is 12, the power battery pack is 13, the right frame is 14, the expansion tank is 20, the bottom frame is 30; the water-cooled unit is 31, and the PDU battery distributor is 32.

[0052] Fourth bolt 101, fourth spring washer 102, fourth flat washer 103;

[0053] Third connecting bolt 111, third spring washer 112, third flat washer 113, third nut 114;

[0054] First bolt 131, first nut 132, second bolt 133

[0055] Fifth bolt 141, fifth spring washer 142, fifth flat washer 143;

[0056] Tenth bolt 201, tenth spring washer 202, tenth flat washer 203;

[0057] Sixth connecting bolt 301, seventh connecting bolt 302, profile sub-beam 303;

[0058] Eighth bolt 311, eighth spring washer 312, eighth flat washer 313;

[0059] Ninth bolt 321, ninth spring washer 322, ninth flat washer 323. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Please see Figures 1 to 6 As shown in Specific Embodiment 1, the spineless tower-type power battery pack assembly with thermal management system includes a battery cluster and a battery frame. It includes at least a battery cluster composed of multiple stacked power battery packs 13, with adjacent power battery packs 13 connected together. The battery frame includes a bottom frame 30 for supporting the battery cluster, with the lowest power battery pack 13 of the battery cluster connected to the bottom frame 30. The battery frame also includes a left side frame 10 and a right side frame 14, respectively positioned on the left and right sides of the battery cluster. The bottom of the left side frame 10 is connected to the left side of the bottom frame 30, and the bottom of the right side frame 14 is connected to the right side of the bottom frame 30. The battery frame also includes a ceiling frame 11, which is connected to the left side frame 10, the top of the battery cluster, and the right side frame 14. It also includes a thermal management module, which includes a water-cooled unit 31 and an expansion tank 20. The water-cooled unit 31 is installed inside the bottom frame 30, and the expansion tank 20 is installed on the right side frame 14, located between the battery cluster and the right side frame 14. This invention utilizes battery clusters formed by directly stacking and connecting power battery packs 13, reducing the connection frames between adjacent power battery packs 13, shrinking the space, and lowering the center of gravity of the battery pack assembly. Simultaneously, this battery pack assembly supports the thermal management module.

[0062] The bottom of the bottom frame 30 is connected to a contoured sub-beam 303 for connecting the frame of a new energy vehicle.

[0063] Adjacent power battery PACK 13 are connected by a first bolt 131 and a first nut 132 that match each other.

[0064] The power battery PACK 13 has recessed bolt mounting slots and recessed nut mounting slots on both its front and rear sides; the nut mounting slots and bolt mounting slots are positioned vertically. The power battery PACK 13 has an upper through hole and a lower through hole for the bolt to pass through. The upper through hole is connected to the nut mounting slot, and the lower through hole is connected to the bolt mounting slot. The first bolt 131 passes through the lower through hole of the upper power battery PACK 13 and the upper through hole of the lower power battery PACK 13 in sequence and is threaded to the first nut 132.

[0065] The bottom of the battery pack is detachably connected to the bottom frame 30 via a second bolt 133; the second bolt 133 passes through the lower through hole of the power battery PACK 13 located at the bottom of the battery pack and is connected to the bottom frame 30. The bottom frame 30 has a threaded hole for threaded connection of the second bolt 133.

[0066] The ceiling frame 11 is detachably connected to the top of the battery pack via a third bolt assembly. The ceiling frame 11 has a through hole through which the third bolt assembly passes. The third bolt 111 of the third bolt assembly passes through the upper through hole of the power battery PACK 13 located at the top of the battery pack. The third nut 114 of the third bolt assembly is located in the nut mounting groove of the power battery PACK 13 at the top of the battery pack. A third spring washer 112 and a third flat washer 113 are fitted onto the third connecting bolt 111. However, the bolt assembly connection is not limited to this type. The ceiling frame has countersunk holes for installing the third bolt assembly.

[0067] The ceiling frame 11 is connected to the left frame 10 via a fourth bolt 101; the ceiling frame 11 is connected to the right frame 14 via a fifth bolt 141; the left frame 10 has a threaded hole for the fourth bolt 101; the right frame 14 has a threaded hole for the fifth bolt 141. A fourth spring washer 102 and a fourth flat washer 103 are fitted onto the fourth bolt 101. A fifth spring washer 142 and a fifth flat washer 143 are fitted onto the fifth bolt 141. However, this connection is not limited to bolt pair connections. The ceiling frame has countersunk holes for installing the fourth bolt 101.

[0068] The bottom frame 30 is connected to the left frame via the sixth bolt 301; the bottom frame 30 is connected to the right frame via the seventh bolt 302; a mounting base is provided on the opposite side of the water-cooled unit 31, and the mounting base is detachably connected to the bottom frame 30 via the eighth bolt 311. A PDU power distributor is installed inside the bottom frame 30, and a connecting base is provided on the opposite side of the PDU power distributor 32, and the connecting base is detachably connected to the bottom frame 30 via the ninth bolt 321. An eighth spring washer 312 and an eighth flat washer 313 are fitted onto the eighth bolt 311. A ninth spring washer 322 and a flat washer 323 are fitted onto the ninth bolt 321. However, this connection method is not limited to bolt pair connections. Water-cooled units are installed on both sides of the PDU power distributor.

[0069] The bottom frame 30 includes an upper rectangular frame and a lower rectangular frame arranged vertically, connected by vertically arranged connecting columns. The upper rectangular frame is detachably connected to the battery cluster, the left frame, and the right frame. A reinforcing beam is connected inside the upper rectangular frame. A support plate and a support beam are installed on the lower rectangular frame. The support beam is detachably connected to the PDU power distributor via a ninth bolt 321. The support plate is detachably connected to the water-cooled unit 31 via an eighth bolt 311.

[0070] The ceiling frame 11 is connected to a lifting ring 12 for the transfer and assembly of the battery box. The ceiling frame 11 has threaded holes for threaded connection of the lifting ring 12.

[0071] Both the left frame 10 and the right frame 14 have longitudinally arranged rectangular structures. The rectangular structure of the left frame 10 surrounds the battery terminals on the left side of the power battery PACK 13. The rectangular structure of the right frame 14 surrounds the expansion tank 20, and a vertically arranged mounting beam is connected to the right frame 14. The mounting beam is connected to the expansion tank 20 via a tenth bolt 201. This protects the battery terminals of the power battery PACK 13 and the expansion tank 20. A tenth spring washer 202 and a tenth flat washer 203 are fitted onto the tenth bolt 201. However, this is not limited to a bolt pair connection.

[0072] The right-side frame 14 includes a rectangular frame and two horizontal bars fixed inside the rectangular frame from top to bottom. The two horizontal bars divide the inner cavity of the rectangular frame into an upper hole, a middle hole, and a lower hole. Mounting beams are fixed inside the middle hole and the lower hole. The middle hole and the lower hole are connected to two expansion tanks 20 positioned vertically through the mounting beams.

[0073] The length of the battery cluster in the left-right direction is greater than its length in the front-back direction.

[0074] New energy vehicles, including spineless tower-type power battery pack assemblies with thermal management systems, have a bottom frame 30 with a contoured sub-beam 303 connected to the bottom for connecting to the vehicle frame; the contoured sub-beam 303 is connected to the vehicle frame via multiple sets of bolt pairs. However, it is not limited to bolt pair connection methods.

[0075] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0076] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An invertebrate tower battery pack assembly with thermal management system, comprising a battery cluster and a battery frame, characterized in that, The battery cluster comprises a plurality of power battery PACK stack structures, and adjacent power battery PACKs are connected; The battery frame comprises a bottom frame for bearing the battery cluster, and the lowermost power battery PACK of the battery cluster is connected with the bottom frame; The battery frame further comprises a left frame and a right frame arranged on the left and right sides, respectively, and the left frame and the right frame are arranged on the left and right sides of the battery cluster, respectively; The bottom of the left frame is connected with the left side of the bottom frame, and the bottom of the right frame is connected with the right side of the bottom frame; The battery frame further comprises a ceiling frame, and the ceiling frame is connected with the left frame, the top of the battery cluster and the right frame, respectively; Further comprising a thermal management module, the thermal management module comprises a water cooling unit and an expansion water kettle, the water cooling unit is installed in the bottom frame, and the expansion water kettle is installed on the right frame and located between the battery cluster and the right frame.

2. The invertebrate tower battery pack assembly with thermal management system of claim 1, wherein: Adjacent power battery PACKs are connected by matching bolts and nuts.

3. An invertebrate tower battery box assembly according to claim 1, wherein: The power battery PACK is provided with an upper through hole and a lower through hole for passing through the bolt, and the upper through hole is in communication with the nut mounting groove, and the lower through hole is in communication with the bolt mounting groove. The bolt passes through the lower through hole of the upper power battery PACK and the upper through hole of the lower power battery PACK and is threadedly connected with the nut.

4. The invertebrate tower battery pack assembly with thermal management system of claim 3, wherein: The bottom of the battery cluster is detachably connected with the bottom frame by the bolt; The bolt passes through the lower through hole of the lowermost power battery PACK of the battery cluster and is connected with the bottom frame.

5. The invertebrate tower battery pack assembly with thermal management system of claim 3, wherein: The ceiling frame is detachably connected with the top of the battery cluster by a bolt pair; The ceiling frame is provided with a through hole passing through the bolt pair; The bolt of the bolt pair passes through the upper through hole of the uppermost power battery PACK of the battery cluster, and the nut of the bolt pair is located in the nut mounting groove of the uppermost power battery PACK of the battery cluster.

6. The invertebrate tower battery pack assembly with thermal management system of claim 5, wherein: The ceiling frame is detachably connected with the top of the battery cluster by a bolt pair; The ceiling frame is provided with a through hole passing through the bolt pair; The bolt of the bolt pair passes through the upper through hole of the uppermost power battery PACK of the battery cluster, and the nut of the bolt pair is located in the nut mounting groove of the uppermost power battery PACK of the battery cluster.

7. The invertebrate tower battery pack assembly with thermal management system of claim 1, wherein: The ceiling frame is connected with the left frame by a fourth bolt; The ceiling frame is connected with the right frame by a fifth bolt; The left frame is provided with a threaded hole for threadedly connecting the fourth bolt; The right frame is provided with a threaded hole for threadedly connecting the fifth bolt.

8. The invertebrate tower battery pack assembly with thermal management system of claim 1, wherein: Opposite sides of the water cooling unit are provided with mounting seats, and the mounting seats are detachably connected with the bottom frame by bolts; A battery management system PDU is installed in the bottom frame, and opposite sides of the battery management system PDU are provided with connecting seats, and the connecting seats are detachably connected with the bottom frame by bolts.

9. The invertebrate tower battery pack assembly with thermal management system of claim 1, wherein: The square frame structure of the left frame surrounds the periphery of the battery terminal on the left side of the power battery PACK. The square frame structure of the right side frame surrounds the outside of the expansion water kettle, and a vertically arranged mounting pole is connected to the right side frame, and the mounting pole is connected with the expansion water kettle through the tenth bolt.

10. A new energy vehicle, characterized in that, The invertebrate tower type power battery box assembly with the heat management system comprises the bottom frame, the heat management system and the invertebrate tower type power battery box assembly as claimed in any one of claims 1 to 9, and a profiling auxiliary pole structure for connecting a new energy vehicle frame is connected to the bottom of the bottom frame. The profiling auxiliary pole structure is connected with the new energy vehicle frame through a plurality of bolt pairs.

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