Damping structure for battery PACK

Abstract

The utility model belongs to the field of energy storage batteries, and particularly relates to a damping structure for a battery PACK, which comprises two supports, pack fixing frames are arranged at the tops of the close ends of the two supports, the bottom ends of the pack fixing frames are fixedly connected with welding long screw rods, a battery pack is clamped between the two pack fixing frames, and the welding long screw rods are fixedly connected with the welding long screw rods. The front side and the rear side of the inner side wall of the support are fixedly connected with first U-shaped elastic pads, the sides, away from the inner wall of the support, of the first U-shaped elastic pads are fixedly connected with U-shaped rubber pads, and the bottom wall of the support is fixedly connected with a cushion block fixing plate. During transportation, the pack fixing frame is subjected to inertia force in the up-and-down direction, the front-and-back direction and the left-and-right direction, shock absorption is carried out on the battery pack in the left-and-right direction through the U-shaped rubber pad, and shock absorption is carried out on the battery pack in the up-and-down direction through the combination of the sleeve and the cylindrical rubber pad and the second buffer spring; and finally, damping is conducted on the battery pack in the front-back direction through a first buffer spring, so that the battery pack is more stable in the transportation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of energy storage battery, specifically is a shock attenuation structure for battery PACK. BACKGROUND

[0002] Battery Pack refers to the combination of multiple cells through series and parallel connection, considering system mechanical strength, thermal management, BMS matching and other issues, packaging, encapsulation and assembly of finished product battery, and the finished product energy storage battery as the key component of energy storage system should ensure the safety and reliability of battery pack during installation and transportation.

[0003] The existing battery pack mounting bracket basically adopts steel plate bending, welding, and then fixes the battery pack with screws, all of which belong to rigid connection and cannot better play the shock attenuation role of the battery pack, especially during vehicle transportation, the battery pack will be subjected to various bumps or sudden braking, which is easy to cause the shell of the battery pack to deform, and in severe cases, the internal structure of the battery pack and the sealing property of the battery pack may be damaged. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiencies of the prior art and avoid the problem of damage to the battery pack during transportation, the utility model provides a shock attenuation structure for battery PACK.

[0005] The utility model discloses a shock attenuation structure for battery PACK, which solves the technical problems and adopts the technical scheme that the shock attenuation structure for battery PACK comprises two supports, the top of the proximal end of the two supports is provided with a pack fixing frame, the bottom end of the pack fixing frame is fixedly connected with a welded long screw rod, a battery pack is clamped between the two pack fixing frames, the front and rear sides of the inner side wall of the support are fixedly connected with U-shaped elastic pads one, the side, away from the inner wall of the support, of the U-shaped elastic pad one is fixedly connected with a U-shaped rubber pad, the bottom wall of the support is fixedly connected with a cushion block fixing plate, the inner wall of the cushion block fixing plate is fixedly connected with a U-shaped elastic pad two, the inside of the cushion block fixing plate is provided with a supporting block, the top end of the supporting block is fixedly connected with a sleeve, the top end of the sleeve is fixedly connected with a cylindrical rubber pad, and the inside of the bottom end of the supporting block is fixedly connected with a bull's eye wheel.

[0006] The bottom wall of the support is fixedly connected with a sliding block fixing plate, a threaded rod is inserted into the inside of the sliding block fixing plate, nuts are threadedly connected to the left and right sides of the surface of the threaded rod, buffer springs one are arranged on the left and right sides of the surface of the threaded rod, a sliding block is sleeved on the middle part of the surface of the threaded rod, and buffer springs two are fixedly installed on the top end of the sliding block.

[0007] As preferred, the top of the sliding block is provided with a slot, the welding long screw is inserted into the inside of the slot through the buffer spring two, and the pack fixing frame is stably located above the sliding block through the welding long screw.

[0008] As preferred, the sidewall of the pack fixing frame is in contact with the U-shaped rubber pad, the bottom end of the pack fixing frame is in contact with the cylindrical rubber pad and the top end of the buffer spring two, and the pack fixing frame is further limited through the elastic U-shaped rubber pad, the cylindrical rubber pad and the buffer spring two.

[0009] As preferred, the sidewall of the support block is attached to the side of the U-shaped elastic pad two away from the inner wall of the cushion block fixing plate, the bottom of the bullseye wheel is in contact with the bottom wall of the cushion block fixing plate, and the compressed U-shaped elastic pad two presses the four walls of the support block, so that the support block is stably limited in the inside of the cushion block fixing plate.

[0010] As preferred, the outer wall of the nut is in contact with the sliding block fixing plate, the threaded rod is fixed in the inside of the sliding block fixing plate by rotating the nut, and the bottom end of the sliding block is 1mm away from the bottom wall of the sliding block fixing plate.

[0011] As preferred, the two ends of the buffer spring one are fixedly connected between the two end faces of the sliding block and the sliding block fixing plate, the front and rear buffer springs one limit the position of the sliding block, and the sliding block moves against the elastic force of the buffer spring one when subjected to external force.

[0012] The utility model discloses the beneficial effect lies in:

[0013] The utility model discloses when transporting, the inertia of pack fixing frame is received in each direction of up and down, front and back and left and right, the left and right direction of battery pack is damped through U type rubber pad, and the up and down direction of battery pack is damped through the combination of sleeve and cylindrical rubber pad and buffer spring two, finally the front and back direction of battery pack is damped through buffer spring one, so that battery pack is more stable in the transportation process. ACCURACY

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2This is a schematic diagram of the connection structure between the bracket and the pack fixing frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the pack fixing frame structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the bracket of this utility model;

[0019] Figure 5 This is a schematic diagram of the surface structure of the support block of this utility model;

[0020] Figure 6 This is a bottom view of the support block structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the surface structure of the sliding block of this utility model;

[0022] Figure 8 This is a side sectional view of the slider structure of this utility model.

[0023] In the diagram: 1. Battery pack; 2. Bracket; 3. Pack fixing bracket; 31. Welded long screw; 4. U-shaped spring pad one; 5. U-shaped rubber pad; 6. Sleeve; 7. Support block; 8. Pad fixing plate; 9. Slider fixing plate; 10. Sliding block; 11. U-shaped spring pad two; 12. Cylindrical rubber pad; 13. Bullseye wheel; 14. Threaded rod; 15. Nut; 16. Buffer spring one; 17. Buffer spring two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0026] This application discloses a shock-absorbing structure for a battery pack. (Refer to...) Figures 1-4 A shock-absorbing structure for a battery pack is characterized by comprising two supports 2, each of which has a pack fixing bracket 3 at its top near the other end. The bottom of the pack fixing bracket 3 is fixedly connected to a welded long screw 31. A battery pack 1 is snapped between the two pack fixing brackets 3. U-shaped spring pads 4 are fixedly connected to the front and rear sides of the inner sidewall of the support 2. A U-shaped rubber pad 5 is fixedly connected to the side of the U-shaped spring pad 4 away from the inner wall of the support 2.

[0027] With reference to Figures 4-6 , the bottom wall of the support 2 is fixedly connected with a cushion block fixing plate 8, the inner wall of the cushion block fixing plate 8 is fixedly connected with a U-shaped elastic cushion two 11, the inside of the cushion block fixing plate 8 is provided with a supporting block 7, the top end of the supporting block 7 is fixedly connected with a sleeve 6, the top end of the sleeve 6 is fixedly connected with a cylindrical rubber pad 12, the inside of the bottom end of the supporting block 7 is fixedly connected with a bull's eye wheel 13, the side wall of the supporting block 7 is attached to the side of the U-shaped elastic cushion two 11 away from the inner wall of the cushion block fixing plate 8, the bottom of the bull's eye wheel 13 and the bottom wall of the cushion block fixing plate 8 are in contact, the U-shaped elastic cushion two 11 after being compressed presses the four walls of the supporting block 7, so as to stably limit the supporting block 7 in the inside of the cushion block fixing plate 8.

[0028] With reference to Figure 4 , Figure 7 and Figure 8 , the bottom wall of the support 2 is fixedly connected with a sliding block fixing plate 9, the inside of the sliding block fixing plate 9 is inserted with a threaded rod 14, the left and right sides of the surface of the threaded rod 14 are both threadedly connected with a nut 15, the nut 15 and the outer wall of the sliding block fixing plate 9 are in contact, rotating the nut 15 makes the threaded rod 14 be fixed in the inside of the sliding block fixing plate 9, the bottom end of the sliding block 10 is 1mm away from the bottom wall of the sliding block fixing plate 9, the left and right sides of the surface of the threaded rod 14 are both provided with a buffer spring one 16, the middle part of the surface of the threaded rod 14 is sleeved with the sliding block 10, the two ends of the buffer spring one 16 are respectively fixedly connected between the two end faces of the sliding block 10 and the sliding block fixing plate 9, the front and rear two buffer springs one 16 limit the position of the sliding block 10, and when the sliding block 10 is subjected to external force, it will move against the elastic force of the buffer spring one 16, the top end of the sliding block 10 is fixedly installed with a buffer spring two 17, the top of the sliding block 10 is provided with a slot, the welded long screw rod 31 is inserted in the inside of the slot through the buffer spring two 17, the pack fixing frame 3 is stably located above the sliding block 10 through the welded long screw rod 31, the side wall of the pack fixing frame 3 and the U-shaped rubber pad 5 are in contact, the bottom end of the pack fixing frame 3 and the top end of the cylindrical rubber pad 12 and the buffer spring two 17 are in contact, the pack fixing frame 3 is further limited by the elastic U-shaped rubber pad 5, the cylindrical rubber pad 12 and the buffer spring two 17.

[0029] Working principle: in the transportation process, when the battery pack 1 receives the inertial force in the left and right directions, at this time, the left and right directions of the battery pack 1 are damped through the U-shaped rubber pad 5, and when the battery pack 1 receives the force in the upward and downward directions, at this time, the battery pack 1 will press the cylindrical rubber pad 12 and the buffer spring two 17 downward, thereby damping the upward and downward directions of the battery pack 1 through the combination of the sleeve 6 and the cylindrical rubber pad 12 and the buffer spring two 17, and when the battery pack 1 receives the force in the front and rear directions, at this time, the combination of the battery pack 1, the pack fixing frame 3 and the welded long screw rod 31 will drive the sliding block 10 to move in the front and rear directions, at this time, the sliding block 10 will overcome the elastic force of the buffer spring one 16 to move, at this time, the front and rear directions of the battery pack 1 are damped through the buffer spring one 16, so that the battery pack 1 is more stable in the transportation process.

[0030] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A shock absorbing structure for a battery PACK, characterized by: The utility model relates to a pack fixing frame (3) is provided with welded long screw rod (31) at the bottom, and the pack (1) is clamped between two pack fixing frames (3), and the inside wall of support (2) is fixedly connected with U type rubber pad (5) and U type elastic pad no. The bottom wall of support (2) is fixedly connected with sliding block fixed plate (9), the inside of sliding block fixed plate (9) is inserted with threaded rod (14), both sides of threaded rod (14) surface are all threadedly connected with nut (15), and both sides of threaded rod (14) surface are provided with buffer spring no.

2. The shock absorbing structure for a battery pack according to claim 1, characterized by: The top of sliding block (10) is fixedly installed with buffer spring II (17).

3. The shock absorbing structure for a battery pack according to claim 1, characterized by: The side wall of pack fixing frame (3) and U type rubber pad (5) are matched and contacted, the bottom end of pack fixing frame (3) and the top end of buffer spring II (17) and cylindrical rubber pad (12) are matched and contacted.

4. The shock absorbing structure for a battery PACK according to claim 1, characterized by: The side wall of support block (7) is attached to the side of U type elastic pad no.

5. The shock absorbing structure for a battery PACK according to claim 1, characterized by: The bottom of nut (15) and the outer wall of sliding block fixed plate (9) are matched and contacted, and the bottom end of sliding block (10) is 1mm away from the bottom wall of sliding block fixed plate (9).

6. The shock absorbing structure for a battery PACK according to claim 1, characterized by: The both ends of buffer spring no.

Images