A battery compartment

Abstract

The present invention discloses a battery bin, belonging to the field of battery technology, comprising a bin shell, a plurality of mounting seats arranged in the bin shell, and battery cells mounted on the mounting seats, wherein buffer components are arranged between adjacent battery cells and between the battery cells and the inner wall of the bin shell, and the buffer component comprises at least two elastic members and a linkage structure; the longitudinal side surfaces of the two elastic members respectively abut against two adjacent side surfaces of the same battery cell, and when one of the elastic members is compressed in the transverse direction, the linkage structure causes the other elastic member to be compressed in the longitudinal direction, thereby causing the other elastic member to expand and deform in the transverse direction, thereby increasing the pressing force between the inner wall of the bin shell and the battery cells, and increasing the resistance to vibration of the battery cells, so that the two elastic members can respectively and simultaneously play the role of buffering the battery cells in two directions, thereby better buffering and avoiding damage to the battery cells.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery compartment. Background Art

[0002] The battery compartment is a product used to accommodate power supply units. There are many types of power supply units. A lithium battery module is a power supply unit that combines multiple lithium battery cells in series and parallel through conductive connectors. Considering that the temperature of lithium batteries will rise when charging and discharging, heat dissipation gaps will be reserved between lithium batteries. For the battery compartment used in vehicles, it is inevitable that the vehicle will be bumpy when driving on the road, and the battery compartment will vibrate frequently. When the lithium battery module in the battery compartment is vibrated, the connection between the batteries may loosen or even disconnect, causing damage to the physical structure inside the lithium battery module; and long-term vibration may also affect the performance of the lithium battery, such as reducing the service life of the lithium battery, increasing the internal resistance, etc.; vibration may also cause battery short circuit problems, posing a threat to equipment and personnel.

[0003] In view of the above-mentioned technical deficiencies, the present invention provides a battery compartment. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a battery compartment, wherein a buffer component is arranged to buffer and protect the battery cells when the battery compartment vibrates.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a battery compartment, comprising:

[0007] A storage shell, wherein a rectangular receiving cavity is provided in the storage shell, and a storage cover is provided on the top of the storage shell;

[0008] A plurality of mounting seats are arranged in the accommodating cavity and used for mounting rectangular parallelepiped battery units;

[0009] A plurality of buffer components are arranged between adjacent battery cells and between the battery cells and the inner wall of the housing, wherein the buffer components include at least two elastic members and a linkage structure;

[0010] The elastic member has transverse elasticity and longitudinal elasticity. When the elastic member is compressed in the transverse direction, the elastic member elastically expands in the longitudinal direction; when the elastic member is compressed in the longitudinal direction, the elastic member elastically expands in the transverse direction;

[0011] The longitudinal side surfaces of the two elastic members in the same buffer assembly respectively contact the two adjacent side surfaces of the same battery unit. When one of the elastic members is compressed in the transverse direction, the linkage structure causes the other elastic member to be compressed in the longitudinal direction.

[0012] Preferably, the linkage structure comprises a linkage rope, which passes through the two elastic members along the longitudinal direction of the two elastic members, and two ends of the linkage rope are respectively connected to ends of the two elastic members that are away from each other.

[0013] Preferably, the linkage structure further comprises two guide rods, the two guide rods are fixedly connected and perpendicular to each other, and the two guide rods respectively pass through two elastic members longitudinally.

[0014] Preferably, a wire groove is provided on the guide rod, and the linkage rope is arranged in the wire groove.

[0015] Preferably, the linkage structure further includes two limiting parts, which are respectively slidably mounted on two guide rods, and are located at one end of the two elastic members away from each other, and both ends of the linkage rope are respectively arranged on the two limiting parts.

[0016] Preferably, two linkage structures are provided in the same buffer assembly.

[0017] Preferably, the buffer assembly includes three elastic members, and the three elastic members are distributed in a T-shape.

[0018] Preferably, the buffer assembly includes four elastic members, and the four elastic members are distributed in a cross shape.

[0019] Preferably, the elastic member is a wavy elastic sheet.

[0020] The beneficial effects of the present invention are as follows: the buffer assembly of the present invention comprises at least two elastic parts and a linkage structure, the two elastic parts are respectively located on two adjacent side surfaces of the battery cell, when the battery cell vibrates in one direction, one of the elastic parts is compressed in the transverse direction, and the linkage structure causes the other elastic part to be compressed in the longitudinal direction, thereby causing the other elastic part to expand and deform in the transverse direction, thereby increasing the pressing force between the inner wall of the housing and the battery cell, increasing the resistance to vibration of the battery cell, and allowing the two elastic parts to simultaneously play a role in buffering the battery cell in two directions, thereby better buffering and avoiding damage to the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of a battery compartment provided in an embodiment of the present invention.

[0023] Figure 2 It is a cross-sectional view from a top view of the present invention.

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0025] Figure 4 for Figure 2 A partial enlarged view of point B in the middle.

[0026] Figure 5 for Figure 2 A partial enlarged view of point C in the middle.

[0027] Figure 6 A three-dimensional diagram of a single buffer assembly of the present invention having two linkage structures.

[0028] Figure 7 A three-dimensional diagram of a single buffer assembly of the present invention provided with a linkage structure.

[0029] Figure 8 This is a stereoscopic diagram of a single buffer assembly of the present invention realizing linkage between a first elastic member and a second elastic member through a linkage rope.

[0030] Fig. 9 It is a top view of the elastic member of the present invention.

[0031] Description of reference numerals:

[0032] 1. Bin shell, 2. Accommodating cavity, 3. Bin cover, 4. Mounting seat, 5. Battery unit, 6. First elastic member, 7. Second elastic member, 8. Third elastic member, 9. Fourth elastic member, 10. First guide rod, 11. Second guide rod, 12. Wire groove, 13. Linkage rope, 14. Limiting part. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] like Figures 1 to 9As shown, the first embodiment of the present invention provides a battery compartment, including a rectangular compartment shell 1, a plurality of mounting seats 4 fixed inside a receiving cavity 2 of the compartment shell 1, and a plurality of battery cells 5 plugged into the mounting seats 4, wherein an openable compartment cover 3 is provided on the top of the compartment shell 1. In order to make the battery cells 5 compactly distributed, the present invention adopts a rectangular battery cell 5. Figure 2 As shown, there are a total of six battery cells 5 distributed in the housing shell 1 of the present invention, and buffer components are provided between adjacent battery cells 5 and between the battery cells 5 and the inner wall of the housing shell 1. The buffer components can play a buffering role when the battery housing is impacted to reduce damage to the battery cells 5.

[0036] The present invention provides a plurality of buffer components, and the buffer components have certain differences according to the different positions of the buffer components, but each buffer component includes at least two elastic members and a linkage structure. Fig. 9 As shown, the elastic member provided in the present invention is a wave-shaped elastic sheet including a plurality of arc segments. Fig. 9 It can be seen that when the elastic member is compressed along the straight line direction a, its size will be shortened in the straight line direction a and elastically expand along the straight line direction b, that is, it will become wider in the straight line direction b; when the elastic member is compressed along the straight line direction b, its size will be shortened in the straight line direction b and elastically expand along the straight line direction a, that is, it will become longer in the straight line direction a.

[0037] like Fig. 9 As shown in the figure, since the elastic member extends along direction a as a whole, direction a is called the length direction or the longitudinal direction; direction b is called the width direction or the transverse direction. That is, the elastic member has transverse elasticity and longitudinal elasticity. When the elastic member is compressed in the transverse direction, the elastic member elastically expands in the longitudinal direction; when the elastic member is compressed in the longitudinal direction, the elastic member elastically expands in the transverse direction.

[0038] like Figure 2 and Figure 3 As shown, the buffer assembly disposed between the gap between the battery unit 5 and the corner of the housing 1 includes a first elastic member 6 and a second elastic member 7. The longitudinal side surfaces of the first elastic member 6 and the second elastic member 7 respectively contact two adjacent side surfaces of the same battery unit 5, and the longitudinal side surfaces of the other side respectively contact two adjacent inner walls of the housing 1. Since the first elastic member 6 and the second elastic member 7 are both wavy, their longitudinal side surfaces are curved surfaces, such as Figure 3 As shown, the first elastic member 6 and the second elastic member 7 are tangent to the inner wall of the housing 1 and the side of the battery cell 5. Therefore, when the first elastic member 6 and the second elastic member 7 elastically expand in the longitudinal direction, the scratch damage to the side of the battery cell 5 is small.

[0039] The existing buffer structure is generally a spring or a rubber sheet. When the battery unit 5 vibrates in a certain direction, only the spring or rubber sheet in that direction will be deformed by force to provide buffering, while the springs in other directions will not provide buffering. The present invention provides a linkage structure, such as Figure 8 As shown, the linkage structure includes at least one linkage rope 13, which has no elasticity or very little elasticity, and passes through the first elastic member 6 and the second elastic member 7 in the longitudinal direction of the two elastic members, and the two ends of the linkage rope 13 are respectively fixedly connected to the ends of the two elastic members that are away from each other. Figure 3 From the installation positions of the first elastic member 6 and the second elastic member 7 shown, it can be known that the present invention sets a linkage rope 13. When the first elastic member 6 is compressed in the transverse direction, the first elastic member 6 expands in the longitudinal direction, which causes the linkage rope 13 on the first elastic member 6 to be subjected to tension. The tension is transmitted to the second elastic member 7 through the linkage rope 13, so that the second elastic member 7 is compressed in the longitudinal direction, thereby generating a transverse expansion. This enables the second elastic member 7 to increase the contact force between the inner wall of the compartment shell 1 and the battery cell 5 in the transverse direction, thereby increasing the resistance to vibration of the battery cell 5, so that the first elastic member 6 and the second elastic member 7 can respectively play a role in buffering the battery cell 5 in two directions.

[0040] Embodiment 2:

[0041] On the basis of the first embodiment, in order to further enhance the structural strength of the buffer assembly, the first elastic member 6 and the second elastic member 7 can be maintained in a vertical relationship. Figure 7 As shown, the first elastic member 6 and the second elastic member 7 of the present invention are respectively interspersed with a first guide rod 10 and a second guide rod 11, wherein the first guide rod 10 and the second guide rod 11 are in a vertical relationship and the adjacent ends are fixedly connected. The first guide rod 10 and the second guide rod 11 are rigid rods, so that the first guide rod 10 and the second guide rod 11 can be used as a skeleton to limit the angle between the first elastic member 6 and the second elastic member 7. Figure 3 From the installation positions of the first elastic member 6 and the second elastic member 7 shown, it can be seen that the first elastic member 6 and the second elastic member 7 maintain a vertical relationship under the constraints of the first guide rod 10 and the second guide rod 11, so that they can be stuck between the corners of the battery cell 5 and the corners of the inner wall of the housing 1 without being displaced as a whole.

[0042] At the same time, the first elastic member 6 and the second elastic member 7 are both provided with clearance holes, and the first guide rod 10 and the second guide rod 11 pass through the clearance holes. When the first elastic member 6 and the second elastic member 7 expand or compress in the longitudinal direction, they can slide on the first guide rod 10 and the second guide rod 11 respectively.

[0043] Embodiment three:

[0044] On the basis of the second embodiment, in order to allow the linkage rope 13 to transmit the tension more accurately, as shown in FIG. Figure 7 As shown, the present invention provides a wire groove 12 on the first guide rod 10 and the second guide rod 11, and sets a linkage rope 13 in the wire groove 12, so that the linkage rope 13 moves along the wire groove 12 under the constraint of the wire groove 12, thereby ensuring that when the linkage rope 13 transmits tension, the elastic member can be compressed in the longitudinal direction.

[0045] In order to further improve the ability of the linkage rope 13 to compress the elastic member, the present invention further provides two limit portions 14 on the first guide rod 10 and the second guide rod 11, respectively, and fixes the two ends of the linkage rope 13 on the two limit portions 14. Figure 7 As shown, the two limiting portions 14 are respectively located at one end of the first elastic member 6 away from the second elastic member 7 and one end of the second elastic member 7 away from the first elastic member 6. In this way, the tension of the linkage rope 13 can act on the ends of the first elastic member 6 and the second elastic member 7 through the limiting portions 14. Since the contact area between the limiting portions 14 and the first elastic member 6 or the second elastic member 7 is larger, it is easier to compress them.

[0046] In order to better play the role of the linkage rope 13 and the guide rod, Figure 6 As shown, two linkage structures can be provided in the same buffer assembly, so that the longitudinal expansion of the first elastic member 6 and the second elastic member 7 can be better restrained, and the two linkage ropes 13 can also more easily transmit tension.

[0047] Embodiment 4:

[0048] On the basis of the above embodiment, when there is only one battery cell 5 in the battery compartment, four single buffer components can be used, that is, four buffer components are each provided with two elastic members, and the four buffer components are respectively provided on the four side corners of the battery cell 5.

[0049] like Figure 2 As shown, when six battery cells 5 are arranged in the battery compartment and are placed in two rows, the buffer assembly also needs to be changed appropriately. Figure 2 and Figure 4 As shown, the buffer assembly disposed between two adjacent battery cells 5 and the inner wall of the housing 1 includes three elastic members, which are distributed in a T-shape. The three elastic members are respectively called a first elastic member 6, a second elastic member 7 and a third elastic member 8, wherein the first elastic member 6 and the third elastic member 8 are in the same direction, and the second elastic member 7 is perpendicular to the first elastic member 6. Figure 4 As shown, the T-shaped buffer component is stuck at this position and will not shift.

[0050] like Figure 2 and Figure 5As shown, the buffer assembly arranged in the cross-shaped gap at the intersection of the four battery cells 5 includes four elastic members, which are distributed in a cross shape. The four elastic members are respectively called the first elastic member 6, the second elastic member 7, the third elastic member 8 and the fourth elastic member 9, wherein the first elastic member 6 and the third elastic member 8 are in the same direction, and the second elastic member 7 and the fourth elastic member 9 are in the same direction. The cross-shaped buffer assembly will not shift at this point.

[0051] Therefore, the buffer assembly of the present invention can achieve positioning in the battery compartment by relying on its own structure and play a role in buffering the battery unit 5 .

[0052] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A battery compartment, characterized in that: include: A bin shell (1), wherein a rectangular accommodating cavity (2) is provided inside the bin shell (1), and a bin cover (3) is provided on the top of the bin shell (1); A plurality of mounting seats (4) are arranged in the accommodating cavity (2) and are used to mount rectangular parallelepiped battery units (5); A plurality of buffer components, arranged between adjacent battery cells (5) and between the battery cells (5) and the inner wall of the housing (1), the buffer components comprising at least two elastic members and a linkage structure; The elastic member has transverse elasticity and longitudinal elasticity. When the elastic member is compressed in the transverse direction, the elastic member elastically expands in the longitudinal direction; when the elastic member is compressed in the longitudinal direction, the elastic member elastically expands in the transverse direction; The longitudinal side surfaces of two elastic members in the same buffer assembly respectively contact two adjacent side surfaces of the same battery unit (5), and when one of the elastic members is compressed in the transverse direction, the linkage structure causes the other elastic member to be compressed in the longitudinal direction; The linkage structure comprises a linkage rope (13) and two guide rods, the linkage rope (13) passing through the two elastic members in the longitudinal direction of the two elastic members, and the two ends of the linkage rope (13) are respectively connected to the ends of the two elastic members that are away from each other; the two guide rods are fixedly connected and vertically, and the two guide rods respectively pass through the two elastic members in the longitudinal direction.

2. A battery compartment as claimed in claim 1, characterized in that: A guide wire groove (12) is provided on the guide rod, and the linkage rope (13) is arranged in the guide wire groove (12).

3. A battery compartment as claimed in claim 1, characterized in that: The linkage structure further comprises two limiting parts (14), the two limiting parts (14) being slidably sleeved on the two guide rods respectively, the two limiting parts (14) being located at ends of the two elastic members that are away from each other, and the two ends of the linkage rope (13) being respectively arranged on the two limiting parts (14).

4. A battery compartment as claimed in claim 1, characterized in that: Two linkage structures are arranged in the same buffer component.

5. A battery compartment as claimed in claim 1, characterized in that: The buffer assembly includes three elastic members, and the three elastic members are distributed in a T shape.

6. A battery compartment as claimed in claim 1, characterized in that: The buffer assembly includes four elastic members, and the four elastic members are distributed in a cross shape.

7. A battery compartment as claimed in claim 1, characterized in that: The elastic member is a wave-shaped elastic sheet.

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