Vibration reduction and heat dissipation type lithium battery shell

Abstract

The utility model discloses a vibration attenuation and heat dissipation type lithium battery shell, which belongs to the field of lithium battery shells, and comprises a shell, a cover, a first limiting piece, a second limiting piece, a particle damping vibration attenuation base, a first spring, a dustproof net and a first heat dissipation sheet, a plurality of first springs are fixed to the inner bottom wall of the shell, a particle damping vibration attenuation base is fixed to the top ends of the first springs, first limiting pieces are arranged on the left side and the right side of the top of the particle damping vibration attenuation base, first cooling fins are arranged on the inner side walls of the first limiting pieces, a groove is formed in the bottom of the cover, and a plurality of second limiting pieces are arranged in the groove. The first springs are combined with the particle damping vibration attenuation base, two different vibration attenuation modes are combined below the battery pack, a good vibration attenuation effect is achieved, heat is effectively guided out and dissipated through the arrangement that the first cooling fins are combined with the heat dissipation holes, and the heat dissipation efficiency and the heat dissipation effect are improved.

Description

Technical Field

[0001] The utility model belongs to the field of lithium battery shells, and in particular relates to a vibration-reducing and heat-dissipating lithium battery shell. Background Art

[0002] With the development of new energy vehicles, there are more and more innovations in new energy vehicle batteries. New energy vehicle batteries are new types of car batteries that use new energy technology to reduce "greenhouse gas" emission pollution. When the car is driving, it will be bumpy, causing the internal structure to shake, and the battery will be shaken and collided, causing damage to the battery.

[0003] A vibration-damping and heat-dissipating shell for a new energy vehicle battery pack with announcement number CN218827555U comprises a shell, an upper damping structure and a lower damping structure are arranged in the shell, an upper card slot is arranged at the top of the shell, a plurality of upper slide slots are symmetrically arranged at the top of the shell, an upper cover plate is arranged at the top of the shell, a plurality of upper springs are symmetrically arranged at the bottom of the upper cover plate, upper gaskets are arranged at the bottom of the upper springs, an upper push plate is arranged at the bottom of the upper cover plate, an upper pad is arranged at the bottom of the upper push plate, an upper fixing bolt is arranged on the upper push plate, one end of the upper fixing bolt passes through the upper push plate and is embedded in the upper pad, and the other end of the upper fixing bolt is flush with the surface of the upper pad. Its vibration-damping and heat-dissipating method is single, and the vibration-damping and heat-dissipating effect needs to be improved. Utility Model Content

[0004] The utility model aims to provide a vibration-damping and heat-dissipating lithium battery housing to overcome at least one of the above-mentioned defects in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a vibration-damping and heat-dissipating lithium battery shell, which comprises an outer shell, a cover, a first limiter, a second limiter, a particle damping and vibration-damping base, a first spring, a dust-proof net, and a first heat sink. The top of the outer shell is detachably provided with a cover, the left and right side walls of the outer shell are provided with heat dissipation holes, the heat dissipation holes are provided with dust-proof nets, a plurality of first springs are fixed to the inner bottom wall of the outer shell, a particle damping and vibration-damping base is fixed to the top of the first spring, the left and right sides of the top of the particle damping and vibration-damping base are provided with first limiters, the inner side wall of the first limiter is provided with a first heat sink, the bottom of the cover is provided with a groove, and a plurality of second limiters are provided in the groove.

[0007] Preferably, the particle damping vibration reduction base includes a vibration reduction shell and damping particles. The vibration reduction shell is fixed to the top of the first spring. The interior of the vibration reduction shell is filled with damping particles. The first limiter is arranged on the top of the vibration reduction shell.

[0008] Preferably, a plurality of second heat sinks are fixed to the top of the vibration-damping housing.

[0009] Preferably, a plurality of partitions are fixed inside the vibration-damping shell to divide the internal space of the vibration-damping shell into a plurality of vibration-damping chambers.

[0010] Preferably, the damping particles are made of ceramic or iron, and the filling rate of the damping particles is ≥80%.

[0011] Preferably, the first limit member includes a clamping plate, a second spring, and a slider. A sliding groove is opened on the left and right sides of the top of the vibration damping shell. The slider is slidably connected in the sliding groove. The clamping plate is fixed to the top of the slider. The first heat sink is fixed to the inner wall of the clamping plate. The second spring is fixed to the outer end of the slider, and the outer end of the second spring is fixed to the inner wall of the sliding groove.

[0012] Preferably, the second limiting member includes a third spring and a pressure block, a plurality of third springs are fixed to the top wall of the groove, and a pressure block is fixed to the bottom end of the third spring.

[0013] Preferably, a plurality of card blocks are fixed to the bottom of the cover, a plurality of card slots are provided on the top of the housing, and the card blocks are engaged with the card slots.

[0014] The beneficial effects of the utility model are:

[0015] 1. The first spring is combined with the particle damping vibration reduction base, and two different vibration reduction methods are combined under the battery pack to adapt to more diverse vibration environments and conditions, improve the stability of the entire system, play a good vibration reduction effect, and reduce failures and damage caused by vibration; the first heat sink is combined with the heat dissipation hole to effectively conduct heat out of the heat dissipation, thereby improving the heat dissipation efficiency and heat dissipation effect.

[0016] 2. The left and right sides of the battery pack are fixedly limited by the first limiting member, and the top of the battery pack is limited by the second limiting member, so as to achieve installation stability of the battery pack.

[0017] 3. Through the collision and friction energy dissipation between damping particles, between damping particles and vibration reduction shell, and between damping particles and partitions, it has excellent vibration reduction effect.

[0018] 4. The heat is dissipated from the bottom of the battery pack through the second heat sink to further improve the heat dissipation efficiency.

[0019] 5. By setting the slider and the second spring in combination with the slide groove, the position of the clamping plate can be adjusted according to battery packs of different sizes to ensure that the first heat sink is against the side wall of the battery pack, thereby ensuring heat dissipation and clamping stability; and vibration reduction treatment is performed from the side of the battery pack, which is more conducive to protecting the battery pack.

[0020] 6. By combining the pressure block with the third spring, the pressure block is ensured to be against the top wall of the battery pack, which can adapt to the fixation of battery packs of different sizes and ensure the installation stability; and the vibration reduction treatment is performed from the top of the battery pack, which is more conducive to protecting the battery pack.

[0021] 7. By setting the groove, the space occupied by the second limiting member inside the shell is reduced.

[0022] 8. The cover is easy to disassemble and assemble through the cooperation of the card block and the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0024] Figure 2 It is a schematic cross-sectional structure diagram of a particle damping vibration reduction base, a first limiting member, a first heat sink and a second heat sink of the utility model.

[0025] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of A.

[0026] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure of B.

[0027] The marks in the accompanying drawings are: 1-housing, 2-cover, 3-first limiting member, 4-second limiting member, 5-particle damping vibration reduction base, 6-first spring, 7-dustproof net, 8-first heat sink, 9-heat dissipation hole, 51-vibration reduction shell, 52-damping particles, 10-second heat sink, 53-partition, 54-vibration reduction cavity, 31-clamping plate, 32-second spring, 33-slider, 55-slide groove, 41-third spring, 42-pressure block, 11-block, 12-slot, 21-groove. DETAILED DESCRIPTION

[0028] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0029] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] like Figures 1 to 4 As shown, a vibration reduction and heat dissipation type lithium battery shell provided in this embodiment includes a shell 1, a cover 2, a first stopper 3, a second stopper 4, a particle damping vibration reduction base 5, a first spring 6, a dustproof net 7, and a first heat sink 8. The top of the shell 1 is detachably provided with a cover 2, and the left and right side walls of the shell 1 are provided with heat dissipation holes 9, and the dustproof net 7 is provided in the heat dissipation holes 9. A plurality of first springs 6 are fixed to the inner bottom wall of the shell 1, and a particle damping vibration reduction base 5 is fixed to the top of the first spring 6. The left and right sides of the top of the particle damping vibration reduction base 5 are provided with a first stopper 3, and the inner side wall of the first stopper 3 is provided with a first heat sink 8. A groove 21 is provided at the bottom of the cover 2, and a plurality of second stoppers 4 are provided in the groove 21. The first spring 6 is combined with the particle damping vibration reduction base 5, and two different vibration reduction modes are combined under the battery pack to achieve a good vibration reduction effect. Spring vibration reduction and particle damping vibration reduction are different in vibration reduction principles, so their combined use can adapt to more diverse vibration environments and conditions. Whether it is high-frequency vibration or low-frequency vibration, the combination of the two can provide a better vibration reduction effect. Particle damping vibration reduction technology weakens the vibration of particles by introducing a damping force, so that the vibration gradually weakens and eventually stops. The spring vibration reduction can absorb and release vibration energy, reduce the amplitude and frequency of vibration. The combined use can improve the stability of the entire system and reduce failures and damage caused by vibration. Through the setting of the first heat sink 8 combined with the heat dissipation hole 9, the heat is effectively conducted out and dissipated, and the heat dissipation efficiency and heat dissipation effect are improved. When in use, the battery pack is placed on the top of the particle damping vibration reduction base 5, the left and right sides of the battery pack are fixed and limited by the first limiter 3, and the top of the battery pack is limited by the second limiter 4, so as to achieve the installation stability of the battery pack.

[0031] The particle damping vibration reduction base 5 includes a vibration reduction shell 51 and damping particles 52. The vibration reduction shell 51 is fixed to the top of the first spring 6. The interior of the vibration reduction shell 51 is filled with damping particles 52. The first stopper 3 is arranged on the top of the vibration reduction shell 51. A plurality of partitions 53 are fixed inside the vibration reduction shell 51 to divide the internal space of the vibration reduction shell 51 into a plurality of vibration reduction chambers 54. Through the collision and friction energy consumption between the damping particles 52 and the damping particles 52, between the damping particles 52 and the vibration reduction shell 51, and between the damping particles 52 and the partitions 53, an excellent vibration reduction effect is achieved.

[0032] A plurality of second heat sinks 10 are fixed on the top of the vibration damping housing 51. By providing the second heat sinks 10, when the battery pack is installed, the battery pack is placed on top of the second heat sinks 10. The second heat sinks 10 dissipate heat from the bottom of the battery pack, further improving the heat dissipation efficiency.

[0033] The damping particles 52 are made of ceramic or iron, and the filling rate of the damping particles 52 is ≥ 80%. The specific material selection and filling rate are selected according to actual use requirements.

[0034] Among them, the first limiter 3 includes a clamping plate 31, a second spring 32, and a slider 33. The left and right sides of the top of the vibration-damping housing 51 are provided with a slide groove 55. The slider 33 is slidably connected in the slide groove 55. The clamping plate 31 is fixed to the top of the slider 33. The first heat sink 8 is fixed to the inner side wall of the clamping plate 31. The second spring 32 is fixed to the outer end of the slider 33. The outer end of the second spring 32 is fixed to the inner side wall of the slide groove 55. Through the setting of the slider 33 and the second spring 32 combined with the slide groove 55, the position of the clamping plate 31 can be adjusted according to different sizes of battery packs to ensure that the first heat sink 8 is against the side wall of the battery pack to ensure heat dissipation and clamping stability. And the vibration reduction treatment is carried out from the side of the battery pack, which is more conducive to protecting the battery pack.

[0035] Among them, the second limiter 4 includes a third spring 41 and a pressure block 42. A plurality of third springs 41 are fixed to the top wall of the groove, and a pressure block 42 is fixed to the bottom end of the third spring 41. By combining the pressure block 42 with the third spring 41, it is ensured that the pressure block 42 is against the top wall of the battery pack, which can adapt to the fixation of battery packs of different sizes and ensure the installation stability. And the vibration reduction treatment is performed from the top of the battery pack, which is more conducive to protecting the battery pack. By setting the groove, the space occupied by the second limiter 4 inside the housing 1 is reduced.

[0036] Among them, a plurality of blocks 11 are fixed to the bottom of the cover 2, and a plurality of slots 12 are provided on the top of the housing 1, and the blocks 11 are engaged with the slots 12. The cooperation between the blocks 11 and the slots 12 makes it easy to disassemble and assemble the cover.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibration-damping and heat-dissipating lithium battery housing, characterized in that: It includes a housing, a cover, a first limiting member, a second limiting member, a particle damping vibration reduction base, a first spring, a dustproof net, and a first heat sink; The top of the housing is detachably provided with a cover; The left and right side walls of the shell are both provided with heat dissipation holes, and dustproof nets are arranged in the heat dissipation holes; A plurality of first springs are fixed to the inner bottom wall of the housing, and a particle damping vibration reduction base is fixed to the top of the first spring; The first limiting members are arranged on the left and right sides of the top of the particle damping vibration reduction base, and the inner side wall of the first limiting member is arranged with a first heat sink; A groove is formed at the bottom of the cover, and a plurality of second limiting members are arranged in the groove.

2. The vibration-damping and heat-dissipating lithium battery housing according to claim 1, characterized in that: The particle damping vibration reduction base includes a vibration reduction shell and damping particles; The vibration-damping shell is fixed to the top end of the first spring, the interior of the vibration-damping shell is filled with damping particles, and the first limiting member is arranged on the top of the vibration-damping shell.

3. The vibration-damping and heat-dissipating lithium battery housing according to claim 2, characterized in that: A plurality of second heat sinks are fixed on the top of the vibration-damping housing.

4. The vibration-damping and heat-dissipating lithium battery housing according to claim 2, characterized in that: A plurality of partitions are fixed inside the vibration-damping shell to divide the internal space of the vibration-damping shell into a plurality of vibration-damping chambers.

5. The vibration-damping and heat-dissipating lithium battery housing according to claim 2, characterized in that: The material of the damping particles is ceramic or iron, and the filling rate of the damping particles is ≥80%.

6. The vibration-damping and heat-dissipating lithium battery housing according to claim 2, characterized in that: The first limiting member includes a clamping plate, a second spring, and a sliding block; A slide groove is provided on both the left and right sides of the top of the vibration damping housing, a slider is slidably connected in the slide groove, a clamping plate is fixed to the top of the slider, and the first heat sink is fixed to the inner side wall of the clamping plate; A second spring is fixed to the outer end of the sliding block, and the outer end of the second spring is fixed to the inner side wall of the sliding groove.

7. The vibration-damping and heat-dissipating lithium battery housing according to claim 1, characterized in that: The second limiting member includes a third spring and a pressing block; A plurality of third springs are fixed to the top wall of the groove, and a pressing block is fixed to the bottom end of the third spring.

8. The vibration-damping and heat-dissipating lithium battery housing according to claim 1, characterized in that: A plurality of card blocks are fixed on the bottom of the cover, a plurality of card slots are opened on the top of the shell, and the card blocks are engaged with the card slots.

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