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CN-224224892-U - A fixed subassembly and vehicle that is used for battery package of vehicle

CN224224892UCN 224224892 UCN224224892 UCN 224224892UCN-224224892-U

Abstract

The present disclosure provides a securing assembly for a battery pack of a vehicle including a bracket including first and second sections, the first section secured to a first surface of a beam member disposed vertically above a vehicle body floor and the second section disposed against a second surface of the vehicle body floor, wherein the first surface of the beam member is vertically opposite and spaced apart from the second surface of the vehicle body floor, and a fastener extending from the battery pack disposed vertically below the vehicle body floor through the vehicle body floor and fixedly connected to the second section of the bracket to secure the battery pack. The bracket is configured to deform when the fastener is displaced relative to the beam member in a first direction perpendicular to the vertical direction to cause the second section to follow the fastener for displacement relative to the first section in the first direction. The fixing assembly can achieve both fixing reliability and safety of the battery pack. The present disclosure also provides a vehicle including such a securing assembly.

Inventors

  • CUI HAO
  • Mei Xinjiu
  • LIU XILONG
  • DENG SHAOJIE

Assignees

  • 大众汽车(中国)科技有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. A fixing assembly for a battery pack (5) of a vehicle (1), the vehicle (1) including a vehicle body floor (3), a beam member (4) disposed above the vehicle body floor (3) in a vertical direction (Z), and the battery pack (5) disposed below the vehicle body floor (3), a first surface of the beam member (4) being opposite to and spaced apart from a second surface of the vehicle body floor (3) in the vertical direction (Z), the fixing assembly comprising: -a bracket (10), the bracket (10) comprising a first section (11) and a second section (12), the first section (11) being fixed to the first surface of the beam member (4) and the second section (12) being arranged against the second surface of the body floor (3), and -A fastener (20), which fastener (20) extends from the battery pack (5) through the vehicle body floor (3) and is fixedly connected to the second section (12) of the bracket (10) to fix the battery pack (5); Wherein the bracket (10) is configured to be deformable upon displacement of the fastener (20) relative to the beam member (4) along a first direction (51) perpendicular to the vertical direction (Z) to displace the second section (12) along the first direction (51) following the fastener (20) relative to the first section (11).
  2. 2. The fixation assembly according to claim 1, wherein the bracket (10) further comprises a third section (13), the third section (13) extending along the vertical direction (Z) and connecting the first section (11) and the second section (12).
  3. 3. The fixation assembly according to claim 2, wherein the bracket (10) is inverted-shaped as seen in a cross section parallel to both the vertical direction (Z) and the first direction (51), wherein: The first section (11) comprises a first tab (111) and a second tab (112) spaced apart from each other in the first direction (51), the first tab (111) and the second tab (112) each being fixed to the first surface of the beam member (4), and The third section (13) comprises a first support wall (131) and a second support wall (132) opposite and spaced apart from each other in the first direction (51), the first support wall (131) extending along the vertical direction (Z) and connecting the first tab (111) and the second section (12), and the second support wall (132) extending along the vertical direction (Z) and connecting the second tab (112) and the second section (12).
  4. 4. The fixation assembly according to claim 2, wherein the bracket (10) is i-shaped as seen in a cross section parallel to both the vertical direction (Z) and the first direction (51), wherein: The first section (11) comprises a first end (113) and a second end (114) opposite to each other in the first direction (51), and a first intermediate portion (115) extending between the first end (113) and the second end (114); The second section (12) comprises a third end (121) and a fourth end (122) opposite to each other in the first direction (51), and a second intermediate portion (123) extending between the third end (121) and the fourth end (122), and The third section (13) comprises a third support wall (133), which third support wall (133) extends along the vertical direction (Z) and connects the first intermediate portion (115) and the second intermediate portion (123).
  5. 5. The fixation assembly according to claim 2, wherein the bracket (10) is box-shaped as seen in a cross section parallel to both the vertical direction (Z) and the first direction (51), wherein: the first section (11) comprises a fifth end (116) and a sixth end (117) opposite to each other in the first direction (51); the second section (12) comprises a seventh end (124) and an eighth end (125) opposite to each other in the first direction (51), and The third section (13) comprises a fourth support wall (134) and a fifth support wall (135) opposite and spaced apart from each other in the first direction (51), the fourth support wall (134) extending along the vertical direction (Z) and connecting the fifth end (116) and the seventh end (124), and the fifth support wall (135) extending along the vertical direction (Z) and connecting the sixth end (117) and the eighth end (125).
  6. 6. The securing assembly according to any one of claims 1 to 5, characterized in that the beam member (4) is a seat cross beam of the vehicle (1) and is fixedly connected to the vehicle body floor (3).
  7. 7. The securing assembly as claimed in claim 6, wherein: The beam member (4) defining a cavity (40) recessed into the beam member (4) along the vertical direction (Z) away from the second surface of the vehicle body floor (3), and the first surface being a top surface of the cavity (40), and The second surface is a surface of the vehicle body floor (3) facing the top surface in the vertical direction (Z).
  8. 8. The stationary assembly according to any one of claims 1 to 5, characterized in that the vehicle (1) further defines a longitudinal direction (X) and a lateral direction (Y), the longitudinal direction (X), the lateral direction (Y) and the vertical direction (Z) being perpendicular to each other and when the vehicle (1) is on a horizontal ground, the longitudinal direction (X) and the lateral direction (Y) being parallel to the horizontal ground and the vertical direction (Z) being perpendicular to the horizontal ground, wherein the first direction (51) is in one of the following orientations: (i) -said first direction (51) is parallel to said lateral direction (Y); (ii) The first direction (51) being parallel to the longitudinal direction (X), and (Iii) The first direction (51) is inclined with respect to the longitudinal direction (X) and the lateral direction (Y).
  9. 9. The securing assembly according to any one of claims 1 to 5, characterized in that: the first section (11) of the bracket (10) being welded to the first surface of the beam member (4), and/or The fastener (20) is a bolt and the second section (12) of the bracket (10) has a threaded connection to which the bolt is threadably secured, and/or No mechanical connection exists between the second section (12) of the bracket (10) and the body floor (3), and/or The battery pack (5) is rectangular in shape and comprises a central portion (52) and a peripheral portion (53) surrounding the central portion (52), the fastener (20) extending from a bottom side (54) of the battery pack (5) facing away from the vehicle body floor (3) through the central portion (52) to a top side (55) of the battery pack (5) opposite the bottom side (54) along the vertical direction (Z), and extending through the vehicle body floor (3) and being fixedly connected to the second section (12) of the bracket (10).
  10. 10. A vehicle (1), characterized in that the vehicle (1) comprises: A vehicle body floor (3); a beam member (4) arranged above the vehicle body floor (3) in a vertical direction (Z) and a battery pack (5) arranged below the vehicle body floor (3), a first surface of the beam member (4) being opposite to and spaced apart from a second surface of the vehicle body floor (3) in the vertical direction (Z), and The securing assembly according to any one of claims 1 to 9; Wherein the first section (11) of the bracket (10) is fixed to the first surface of the beam member (4) and the second section (12) is arranged against the second surface of the vehicle body floor (3), and Wherein the fastener (20) extends from the battery pack (5) through the vehicle body floor (3) and is fixedly connected to the second section (12) of the bracket (10) to secure the battery pack (5).

Description

A fixed subassembly and vehicle that is used for battery package of vehicle Technical Field The present disclosure relates to the technical field of vehicle structures, and more particularly to a securing assembly for a battery pack of a vehicle and a vehicle including such a securing assembly. Background With the increasing importance of global environmental protection and sustainable development, the new energy automobile industry is coming to develop rapidly. The battery pack is a core component of an electric or hybrid vehicle, and its fixing reliability directly affects safety and service life. Therefore, it is necessary to firmly fix the battery pack in the vehicle to cope with a complicated condition during traveling. In current battery pack securing schemes, fasteners are employed (e.g., at a central portion of the battery pack) to secure the battery pack directly to the vehicle body floor. However, such a fastening scheme lacks an effective cushioning mechanism, and when the acceleration or deceleration of the vehicle is excessive (e.g., encounters a collision), the load is directly transmitted to the fastener through the vehicle body floor and further to the battery pack, thereby easily causing the fastener to break, even causing the battery pack to be damaged (e.g., the case to be broken, the seal to fail, even causing the electrical core to be shorted and thermally run away), affecting the safety of the vehicle and the driver. Therefore, a new battery pack fixing scheme is needed. Disclosure of utility model An object of the present disclosure is to propose a fixing assembly for a battery pack of a vehicle to overcome at least one of the above technical problems. According to an aspect of the present disclosure, a securing assembly for a battery pack of a vehicle is provided. The vehicle includes a body floor, a beam member disposed above the body floor in a vertical direction, and a battery pack disposed below the body floor, a first surface of the beam member being opposite to and spaced apart from a second surface of the body floor in the vertical direction. The securing assembly includes a bracket including a first section secured to the first surface of the beam member and a second section disposed against the second surface of the body floor, and a fastener extending from the battery pack through the body floor and fixedly connected to the second section of the bracket to secure the battery pack, wherein the bracket is configured to deform when the fastener is displaced relative to the beam member in a first direction perpendicular to the vertical direction to cause the second section to follow the fastener to displace relative to the first section in the first direction. In some embodiments, the bracket further comprises a third section extending along the vertical direction and connecting the first section and the second section. In some embodiments, the bracket is inverted-shaped as viewed in a cross section parallel to both the vertical direction and the first direction, wherein the first section includes first and second tabs spaced apart from each other in the first direction, each of the first and second tabs being secured to the first surface of the beam member, and the third section includes first and second support walls opposing each other and spaced apart in the first direction, the first support wall extending along the vertical direction and connecting the first and second sections, and the second support wall extending along the vertical direction and connecting the second tab and the second section. In some embodiments, the bracket is I-shaped when viewed in a cross section parallel to both the vertical direction and the first direction, wherein the first section includes first and second ends opposite each other in the first direction and a first intermediate portion extending between the first and second ends, the second section includes third and fourth ends opposite each other in the first direction and a second intermediate portion extending between the third and fourth ends, and the third section includes a third support wall extending along the vertical direction and connecting the first and second intermediate portions. In some embodiments, the bracket is square-frame shaped as viewed in cross section parallel to both the vertical direction and the first direction, wherein the first section includes a fifth end and a sixth end opposite each other in the first direction, the second section includes a seventh end and an eighth end opposite each other in the first direction, and the third section includes a fourth support wall and a fifth support wall opposite each other and spaced apart in the first direction, the fourth support wall extending in the vertical direction and connecting the fifth end and the seventh end, and the fifth support wall extending in the vertical direction and connecting the sixth end and the eighth end. In some embodiments, the beam member is