Seat bracket mounting structure, battery pack and vehicle

Abstract

The utility model relates to a seat support mounting structure, a battery pack and a vehicle, the seat support mounting structure is used for mounting a vehicle seat, the seat support mounting structure comprises a seat support and a battery pack box body, the seat support is arranged in the battery pack box body and fixed on a cross beam of the battery pack box body, and the battery pack box body is arranged in the battery pack box body. The seat bracket is connected with the upper cover of the battery pack box body in a sealing fit manner through a plurality of sealing connecting pieces; and the vehicle seat is respectively connected with the plurality of sealing connecting pieces through a plurality of fastening pieces. According to the utility model, the seat bracket is designed in the battery pack box body and is fixed on the cross beam of the battery pack box body, the upper cover of the battery pack box body is connected with the seat bracket in a sealing and matching manner through the sealing connecting piece, and the vehicle seat is connected with the sealing connecting piece through the fastener; and the stress of the seat bracket can be conducted to the main structure of the battery pack box body under the condition of ensuring the airtightness of the whole pack.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and in particular to a seat bracket mounting structure, a battery pack and a vehicle. Background Art

[0002] In the field of automobile design, the brackets for fixing car seats must be firm and reliable, and are usually designed on the main crossbeam of the car frame to ensure the strength of the seat connection. However, in new energy vehicles, the battery pack is usually fixed under the chassis, which squeezes the position and structure of the original crossbeam of the car, making it difficult to design the seat bracket on the crossbeam, so it is necessary to consider designing the seat fixing bracket on the battery pack.

[0003] For example, the patent with publication number CN220569854U discloses a battery pack cover, a seat crossbeam and a vehicle, wherein the seat crossbeam includes a crossbeam body, which is mounted on the battery pack cover. The battery pack design needs to ensure the airtightness of the entire pack. If the seat crossbeam is designed on the battery pack cover and needs to ensure airtightness, it is difficult for the force to be transmitted to the main structure of the battery pack box, thereby creating risks for the fixed seat. Utility Model Content

[0004] Based on this, it is necessary to address the technical problem that the current seat crossbeam is designed to cover the battery pack and ensure airtightness, but its force is difficult to transmit to the main structure of the battery pack box, thereby posing a risk to the fixed seat. The utility model provides a seat bracket mounting structure, a battery pack and a vehicle.

[0005] The utility model proposes a seat bracket mounting structure for mounting a vehicle seat, which comprises a seat bracket and a battery pack case, wherein the seat bracket is arranged in the battery pack case and fixed on a cross beam of the battery pack case, and the seat bracket is sealingly connected to an upper cover of the battery pack case through a plurality of sealing connectors; the vehicle seat is respectively connected to a plurality of sealing connectors through a plurality of fasteners.

[0006] The utility model provides a seat bracket installation structure, in which the seat bracket is designed inside a battery pack case and fixed on a crossbeam of the battery pack case, and the upper cover of the battery pack case is sealingly connected to the seat bracket by a sealing connector, and the vehicle seat is connected to the sealing connector by a fastener, so that the force of the seat bracket can be transmitted to the main structure of the battery pack case while ensuring the airtightness of the entire package, and at the same time, a seat bracket with a strong structure and as small a volume as possible can be set to avoid occupying the volume of the entire package and affecting the energy density of the battery pack.

[0007] As a further improvement of the above scheme of the utility model, a plurality of sealing connectors penetrate through the upper cover of the battery pack case and are threadedly connected to the seat bracket, and the sealing connectors and the upper cover of the battery pack case are sealed by sealant.

[0008] As a further improvement of the above solution of the utility model, a plurality of welding nuts are welded on the seat bracket, and a plurality of sealing connectors are respectively threadedly connected with the plurality of welding nuts.

[0009] As a further improvement of the above scheme of the utility model, the sealing connector has a T-shaped structure, the outer peripheral surface of the vertical section of the sealing connector is provided with an external thread, the horizontal section of the sealing connector is provided with sealant facing its vertical section and a hexagonal hole is opened on the horizontal section.

[0010] As a further improvement of the above solution of the utility model, a screw hole coaxially connected to the hexagonal hole is opened in the vertical section of the sealing connector, and the fastener is a bolt and is threadedly connected to the screw hole of the sealing connector.

[0011] As a further improvement of the above solution of the utility model, both ends of the seat bracket are connected to the adapter bracket through a plurality of bolts 1, and the two adapter brackets are fixedly mounted on the crossbeam of the battery pack box body by a plurality of bolts 2.

[0012] As a further improvement of the above scheme of the utility model, the seat bracket includes a lower frame and an upper frame arranged above the lower frame; the upper frame has a protrusion protruding away from the lower frame, the upper frame and the lower frame are both made of steel structure and the strength of the lower frame is greater than that of the upper frame, and the upper frame and the lower frame are connected by spot welding; the upper cover of the battery pack box is formed with an avoidance groove corresponding to the protrusion at a position for avoiding the protrusion.

[0013] As a further improvement of the above solution of the utility model, a plurality of assembly holes are formed through the protruding portion, and welding nuts are connected to the assembly holes by arc welding.

[0014] The utility model provides a battery pack, which includes a battery module and also includes the seat bracket mounting structure as mentioned above. The battery module is accommodated in the battery pack box, and the seat bracket spans the battery module.

[0015] The utility model provides a vehicle, wherein the vehicle comprises the seat support mounting structure as described above, or the vehicle comprises the battery pack as described above.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model provides a seat bracket installation structure, in which the seat bracket is designed inside the battery pack case and fixed on the crossbeam of the battery pack case, and the upper cover of the battery pack case is sealingly connected to the seat bracket through a sealing connector, and the vehicle seat is connected to the sealing connector through a fastener, so that the force of the seat bracket can be transmitted to the main structure of the battery pack case while ensuring the airtightness of the entire package. At the same time, a seat bracket with a strong structure and as small a volume as possible can be set to avoid occupying the volume of the entire package and affecting the energy density of the battery pack.

[0018] 2. In the seat bracket of the utility model, the upper frame is stamped and formed by ordinary strength steel, and the middle part of the upper frame has a protrusion protruding away from the lower frame, which has good formability, and is convenient for making the required upper frame shape and welding nuts. The lower frame is stamped and formed by high-strength steel, and the lower frame has a simple shape and a strong structure. Through the combination of the upper frame and the lower frame, the entire seat bracket has the advantages of high strength and small space in a limited space. At the same time, the battery module is located below the seat bracket, and the use of high-strength steel plates in the lower frame can effectively prevent the welding nuts from invading the battery module when the seat bracket is subjected to external force or impact, thereby maximizing the protection of the battery cells in the battery module from external interference, thereby causing a series of uncontrollable accidents such as short circuit, leakage, thermal runaway and fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a seat bracket installation structure proposed in an embodiment of the utility model;

[0020] Figure 2 A partial cross-sectional view of a seat bracket mounting structure proposed in an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of a seat bracket in a seat bracket installation structure proposed in an embodiment of the utility model;

[0022] Figure 4 An exploded view of a seat bracket in a seat bracket installation structure proposed in an embodiment of the utility model;

[0023] Figure 5 A schematic structural diagram of a sealing connector in a seat bracket mounting structure proposed in an embodiment of the utility model;

[0024] Figure 6 This is a schematic structural diagram of an adapter bracket in a seat bracket installation structure proposed in an embodiment of the utility model.

[0025] Figure numerals: 1. seat bracket; 11. lower frame; 12. upper frame; 13. welding nut; 2. cross beam; 3. upper cover; 4. adapter bracket; 41. rivet nut; 5. bolt one; 6. bolt two; 7. sealing connector; 71. sealant; 72. screw hole; 73. hexagon socket hole; 8. battery module; 9. lower box. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In order to address the technical problem that, in the current design of a seat crossbeam that is placed on the upper cover of the battery pack and needs to ensure airtightness, it is difficult for the force to be transmitted to the main structure of the battery pack case, thereby posing a risk to fixing the seat, this embodiment provides a seat bracket installation structure, in which the seat bracket is designed to be inside the battery pack case, so that the force of the seat bracket can be transmitted to the main structure of the battery pack case while ensuring the airtightness of the entire pack. At the same time, a seat bracket with a strong structure and as small a volume as possible is provided to avoid occupying the entire pack volume and affecting the energy density of the battery pack.

[0028] Reference Figure 1 , Figure 2 The seat bracket installation structure of this embodiment includes a seat bracket 1 and a battery pack box.

[0029] The battery pack case involved in this embodiment mainly includes a lower case 9 and an upper cover 3. A plurality of cross beams 2 arranged side by side are provided in the lower case 9. The cross beams 2 divide the interior of the lower case 9 into a plurality of mounting slots for accommodating the battery module 8. The upper cover 3 is connected to the lower case 9. The connection method of the upper cover 3 and the lower case 9 adopts the existing technology, which will not be described in detail here. It is sufficient to ensure the sealing of the connection between the upper cover 3 and the lower case 9.

[0030] The seat support 1 is arranged inside the battery pack box. Figure 3 , Figure 4In this embodiment, the seat support 1 includes a lower frame 11 and an upper frame 12 disposed above the lower frame 11, and the upper frame 12 is connected to the lower frame 11 by spot welding. Two assembly holes are provided through the raised portion of the upper frame 12, and welding nuts 13 are welded at the assembly holes by arc welding or resistance welding. The upper frame 12 is stamped and formed by ordinary strength steel, and the middle part of the upper frame 12 has a raised portion protruding away from the lower frame 11, which has good formability, is convenient for making the required shape of the upper frame 12 and is convenient for welding the welding nuts 13. The lower frame 11 is stamped and formed by high-strength steel, and the lower frame 11 has a simple shape and a strong structure. Through the combination of the upper frame 12 and the lower frame 11, the entire seat support 1 has the advantages of high strength and small space occupied in a limited space. In order to avoid affecting the volume of the battery pack, the upper cover 3 is provided with a relief groove matching the relief portion at a position corresponding to the relief portion of the upper frame 12. The relief portion is accommodated in the relief groove. The relief portion of the upper cover 3 is provided with two through holes, which are respectively connected to the two assembly holes. A sealing connector 7 threadedly connected to the welding nut 13 is provided at the through hole. Figure 5 The sealing connector 7 of this embodiment is of a T-shaped structure. The vertical section of the sealing connector 7 is provided with an external thread and the end of the vertical section of the sealing connector 7 is provided with a guide thread. A screw hole 72 is provided in the vertical section of the sealing connector 7. The horizontal section of the sealing connector 7 is provided with an inner hexagonal hole 73 coaxially connected to the screw hole 72. The inner hexagonal hole 73 facilitates the connection between the sealing connector 7 and the upper cover 3 and the seat bracket 1. In order to achieve airtightness of the whole package, a sealant 71 is provided on one side of the horizontal section of the sealing connector 7 facing its vertical section, and the sealant 71 is used to achieve the sealing of the connection between the sealing connector 7 and the upper cover 3.

[0031] Both ends of the seat bracket 1 are connected to the adapter bracket 4. Specifically, two connection holes 1 are provided at both ends of the upper frame 12 at both sides of the raised portion, and two connection holes 2 are provided at both ends of the lower frame 11, and the four connection holes 2 are respectively connected to the four connection holes 1. Figure 6 Two rivet nuts 41 are arranged on the two adapter brackets 4. The two adapter brackets 4 are respectively located at the bottom of both ends of the lower frame 11. The four rivet nuts 41 are respectively connected with the four connection holes 2. The four bolts 1 5 are respectively passed through the four connection holes 1 and the four connection holes 2 and connected with the four rivet nuts 41. The bolts 1 5 are tightly pressed against the upper frame 12. In this way, the mounting hole of the seat bracket 1 itself is at the bottom and in one plane, and the size is easy to control and the installation is simple. The bottom of the adapter bracket 4 is also connected to the crossbeam 2 of the battery pack box through two bolts 2 6.

[0032] Through the above structural setting, the seat bracket 1 is designed in the battery pack case and the seat bracket 1 is connected to the upper cover 3 and the cross beam 2 of the battery pack case, which does not take up too much space in the whole pack and avoids affecting the energy density of the battery pack. While ensuring the airtightness of the whole pack, the force of the seat bracket 1 can be transmitted to the main structure of the battery pack case. At the same time, the upper frame 12 and the lower frame 11 are combined to form the seat bracket 1, which can meet the strength requirements of the seat installation.

[0033] The present embodiment also provides a battery pack, which includes a plurality of battery modules 8 and the above-mentioned seat bracket mounting structure. During assembly, the plurality of battery modules 8 are first placed in the mounting grooves of the battery pack box, and then the battery modules 8 and the adapter bracket 4 are fixed to the cross beam 2 together with bolts 6, the seat bracket 1 is arranged across the battery module 8, and the seat bracket 1 is connected to the adapter bracket 4 with bolts 5, and then the upper cover 3 is connected to the lower box 9 and the upper cover 3 is connected to the seat bracket 1 with the sealing connector 7, and the battery pack of this embodiment can be assembled. The seat bracket 1 spans across the battery module 8, which neither affects the installation of the entire package high and low voltage system nor takes up more space in the entire package, and has sufficient strength to install the seat; the battery module 8 is located below the seat bracket 1, and the use of high-strength steel plates in the lower frame 11 can effectively prevent the welding nuts 13 and the like from invading the battery module 8 when the seat bracket 1 is subjected to external force or impact, thereby maximally protecting the battery cells in the battery module 8 from external interference, which can lead to a series of uncontrollable accidents such as short circuit, leakage, thermal runaway and fire.

[0034] This embodiment also provides a vehicle, including a vehicle seat and a battery pack as described above, wherein the vehicle seat is connected to the screw holes 72 of two sealing connectors 7 respectively through two fasteners (such as bolts, etc.). The vehicle seat is connected to the sealing connector 7 through the fasteners, and the sealing connector 7 connects the upper cover 3 and the seat bracket 1. The force of the vehicle seat is transmitted to the sealing connector 7, then to the seat bracket, and finally to the crossbeam 2. The sealing connector 7 not only realizes the sealing of the whole package, but also can transmit the force of the seat bracket 1 to the main structure of the battery pack box.

[0035] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A seat bracket mounting structure for mounting a vehicle seat, characterized in that: It comprises a seat support (1) and a battery pack box, the seat support (1) being arranged in the battery pack box and fixed on a crossbeam (2) of the battery pack box, the seat support (1) being sealingly connected to an upper cover (3) of the battery pack box via a plurality of sealing connectors (7); the vehicle seat is respectively connected to a plurality of sealing connectors (7) via a plurality of fasteners; The sealing connector (7) is of a T-shaped structure, the outer peripheral surface of the vertical section of the sealing connector (7) is provided with an external thread, the horizontal section of the sealing connector (7) is provided with a sealing glue (71) facing the vertical section thereof, and a hexagonal hole (73) is provided on the horizontal section; a plurality of sealing connectors (7) penetrate the upper cover (3) of the battery pack box and are threadedly connected to the seat bracket (1), and a seal is achieved between the sealing connector (7) and the upper cover (3) of the battery pack box by the sealing glue (71).

2. The seat bracket mounting structure according to claim 1, characterized in that: A plurality of welding nuts (13) are welded to the seat bracket (1), and a plurality of sealing connectors (7) are respectively threadably connected to the plurality of welding nuts (13).

3. The seat bracket mounting structure according to claim 2, characterized in that: A screw hole (72) coaxially connected to the hexagonal hole (73) is provided in the vertical section of the sealing connection piece (7), and the fastener is a bolt and is threadedly connected to the screw hole (72) of the sealing connection piece (7).

4. The seat bracket mounting structure according to claim 1, characterized in that: Both ends of the seat bracket (1) are connected to the adapter bracket (4) via a plurality of first bolts (5), and the two adapter brackets (4) are fixedly mounted on the crossbeam (2) of the battery pack box body via a plurality of second bolts (6).

5. The seat bracket mounting structure according to claim 1, characterized in that: The seat support (1) comprises a lower frame (11) and an upper frame (12) arranged above the lower frame (11); the upper frame (12) has a protrusion protruding in a direction away from the lower frame (11); the upper frame (12) and the lower frame (11) are both made of steel structures, the strength of the lower frame (11) is greater than the strength of the upper frame (12); the upper frame (12) and the lower frame (11) are connected by spot welding; and an avoidance groove for avoiding the protrusion is formed at a position corresponding to the upper cover (3) of the battery pack box and the protrusion.

6. The seat bracket mounting structure according to claim 5, characterized in that: The raised portion is provided with a plurality of assembly holes, and the assembly holes are connected with welding nuts (13) by arc welding.

7. A battery pack, comprising a battery module (8), characterized in that: It also includes a seat bracket mounting structure as claimed in any one of claims 1 to 6, the battery module (8) is accommodated in the battery pack box, and the seat bracket (1) spans the battery module (8).

8. A vehicle, characterized in that: The vehicle comprises the seat support mounting structure according to any one of claims 1 to 6, or the vehicle comprises the battery pack according to claim 7.

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