Series-parallel battery box

Abstract

The utility model relates to the field of battery boxes, in particular to a series-parallel battery box which comprises a base and a limiting mechanism, a shell is arranged on the base, and a top cover is arranged on the shell; the limiting mechanism comprises a plurality of limiting seats, four clamping plates, sliding blocks, guide blocks and three springs, the limiting seats are distributed in the shell in a rectangular array mode and provided with limiting grooves, the clamping plates are distributed in an annular array mode and provided with anti-skid pads, the sliding blocks are arranged on the clamping plates, the guide blocks are arranged on the sliding blocks, and the springs are arranged on the clamping plates. The sliding block is in sliding connection with the limiting base, and a sliding groove allowing the guide block to be in sliding connection is formed in the limiting base. According to the battery box, the situation that part of the batteries topple due to the fact that the cylindrical batteries are easily touched when the top shell is closed during installation can be avoided, and the operation difficulty during assembly of the battery box is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of battery box especially relates to a series-parallel battery box. BACKGROUND

[0002] The series-parallel battery box is a kind of device for managing and controlling multiple battery monomers, and its working principle is based on the series and parallel characteristics of battery monomers, in series connection, the total voltage of battery pack can be improved;In parallel connection, the total current capacity of battery pack can be increased.

[0003] The Chinese patent with publication number CN220138502U discloses a series-parallel battery box for cylindrical battery groups, which includes a base and a semiconductor refrigerating sheet. The top of the base is fixedly connected with a bottom shell, and the top of the bottom shell is clamped with a top shell. A plurality of limiting seats are fixedly connected in the inner cavity of the bottom shell at equal intervals, and a limiting groove is formed in the top of each limiting seat. A heat-conducting sheet is fixedly connected to the bottom end of the limiting groove, and a plurality of heat-conducting columns are fixedly connected to the bottom of the heat-conducting sheet. A heat dissipation groove is formed in the inside of the base, and the bottom ends of the plurality of heat-conducting columns are fixedly connected to the surface of the semiconductor refrigerating sheet by penetrating into the inner cavity of the heat dissipation groove. A plurality of heat dissipation fins are fixedly connected to the bottom of the semiconductor refrigerating sheet, and a plurality of air inlet grooves are formed on one side of the base. Heat dissipation fans are fixedly installed in the inner cavities of the air inlet grooves. The heat of the heating end of the semiconductor refrigerating sheet of the series-parallel battery box is transferred to the surface of the heat dissipation fins, and then dissipated by the heat dissipation fans, thereby improving the heat dissipation performance of the battery box.

[0004] However, the above technical solution has the following disadvantages: before the battery box is completely fixed, the cylindrical batteries are only positioned by the limiting grooves when placed on the limiting seats, and the stability of the top shell before it is closed is poor, which can easily cause accidental contact with the side edges of some batteries when the top shell is closed, thereby causing the batteries to fall over. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a series-parallel battery box that can avoid the cylindrical batteries from being easily touched when the top shell is closed during installation, thereby reducing the operation difficulty during the assembly of the battery box.

[0006] The technical scheme of the utility model provides a series-parallel battery box, which includes a base and a limiting mechanism. A shell is arranged on the base, and a top cover is arranged on the shell. The limiting mechanism includes a plurality of limiting seats arranged in a rectangular array inside the shell and having limiting grooves, four clamping plates arranged in a ring array and having anti-slip pads arranged thereon, a sliding block arranged on the clamping plate, a guide block arranged on the sliding block, and three springs arranged on the clamping plate. The clamping plate has two inclined surfaces arranged in an upper and lower distribution. The sliding block is slidably connected with the limiting seat, and the limiting seat has a sliding groove in the inside for slidably connecting the guide block.

[0007] Preferably, three fixing rods are arranged on the clamping plate, and the spring sleeve is sleeved on the fixing rod.

[0008] Preferably, the heat dissipation mechanism is arranged in communication with the inside of the shell and comprises a heat conduction assembly and a ventilation assembly, the heat conduction assembly comprises a heat conduction sheet arranged at the bottom of the limiting groove, a heat conduction column penetrating through the limiting seat and connected with the heat conduction sheet, a semiconductor refrigeration sheet arranged in the inside of the base, and a plurality of heat dissipation fins, the refrigeration end of the semiconductor refrigeration sheet is connected with the heat conduction column, and the heating end of the semiconductor refrigeration sheet is connected with the heat dissipation fins.

[0009] Preferably, an insulating pad is arranged above the heat conduction sheet.

[0010] Preferably, a plurality of air inlet channels and air outlet channels are arranged on the base, the ventilation assembly comprises a fan arranged in the inside of the air inlet channel, and a dust screen arranged at the entrance of the air inlet channel.

[0011] Preferably, a frame body is arranged on the dust screen, four fixing blocks are arranged on the frame body, and first fixing bolts threadedly connected with the base are penetratingly arranged on the fixing blocks.

[0012] Preferably, a plurality of stepped holes matched with the limiting seats and plug blocks embeddable in the shell are arranged on the top cover.

[0013] Preferably, a plurality of connecting ears are arranged on the shell and the top cover, and second fixing bolts are arranged on the connecting ears.

[0014] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0015] The clamping mechanism is arranged, when the cylindrical battery is inserted into the limiting groove, the side surface of the lower half of the cylindrical battery can be subjected to a pushing force, the clamping plate can be fixed and clamped on the cylindrical battery, the stability during the insertion of the cylindrical battery is improved, the cylindrical battery is prevented from being tilted due to the contact of the side surface of the cylindrical battery with the top cover during the closing of the top cover, the operation difficulty during the installation of the cylindrical battery is reduced, and the practicability of the battery box is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a structure schematic view of the embodiment of the utility model;

[0018] Figure 3 It is a structure schematic view of the limiting seat;

[0019] Figure 4 It is a cross section schematic view of the limiting seat;

[0020] Figure 5 It isFigure 1 Enlarged structural diagram at point A;

[0021] Reference numerals: 1. Base; 2. Housing; 3. Top cover; 4. Limiting seat; 5. Limiting groove; 6. Clamping plate; 7. Anti-slip pad; 8. Slider; 9. Guide block; 10. Spring; 11. Fixing rod; 12. Slide groove; 13. Insulating pad; 14. Heat-conducting plate; 15. Heat-conducting column; 16. Semiconductor cooling chip; 17. Heat dissipation fins; 18. Air inlet duct; 19. Fan; 20. Dustproof net; 21. Air outlet duct; 22. Frame; 23. Fixing block; 24. First fixing bolt; 25. Stepped hole; 26. Insert block; 27. Connecting ear; 28. Second fixing bolt. Detailed Implementation

[0022] Example 1, as Figures 1-5 As shown in the figure, the series-parallel battery box proposed in this embodiment includes a base 1 and a limiting mechanism; a housing 2 is provided on the base 1, and a top cover 3 is provided on the housing 2.

[0023] like Figures 2-4 As shown, the limiting mechanism includes multiple rectangular arrays distributed inside the housing 2, limiting seats 4 with limiting grooves 5, four ring arrays of clamping plates 6 with anti-slip pads 7 on them, sliders 8 on the clamping plates 6, guide blocks 9 on the sliders 8, and three springs 10 on the clamping plates 6. The clamping plates 6 have two inclined surfaces distributed vertically. The sliders 8 are slidably connected to the limiting seats 4. The limiting seats 4 have sliding grooves 12 inside for the guide blocks 9 to slide.

[0024] The clamping plate 6 is provided with three fixing rods 11, and the spring 10 is sleeved on the fixing rods 11. The fixing rods 11 are used to prevent the spring 10 from bending during compression.

[0025] In this embodiment, when installing the cylindrical battery, one end of the cylindrical battery is first inserted into the limiting groove 5 of the limiting seat 4. When the battery contacts the inclined surface of the clamping plate 6, a squeezing situation occurs. As the battery is inserted downward, the clamping plate 6 drives the slider 8 to slide into the limiting seat 4 under the squeezing force. The guide block 9 and the slide groove 12 provide guidance for the movement of the clamping plate 6. At the same time, the spring 10 is compressed until the end of the cylindrical battery touches the bottom of the limiting groove 5. At this time, the lower half of the side surface of the battery is in full contact with the anti-slip pad 7, and the clamping plate 6 fixes and holds the cylindrical battery under the pushing force applied by the spring 10. This improves the stability of the cylindrical battery when it is inserted into the limiting groove 5, avoids the situation where the battery is easily tilted when the top cover 3 is closed and touches the side surface of the cylindrical battery, reduces the difficulty of installing the cylindrical battery, and improves the practicality of the battery box.

[0026] Example 2, as Figure 2 andFigure 5 As shown, the serial-parallel battery box proposed in this embodiment, compared with the first embodiment, the interior of the base 1 and the shell 2 is provided with a heat dissipation mechanism, the heat dissipation mechanism comprises a heat conduction component and a ventilation component, the heat conduction component comprises a heat conduction sheet 14 arranged at the bottom of the limiting groove 5, a heat conduction column 15 penetrating through the limiting seat 4 and connected with the heat conduction sheet 14, a semiconductor refrigeration sheet 16 arranged in the interior of the base 1, and a plurality of heat dissipation fins 17, the refrigeration end of the semiconductor refrigeration sheet 16 is connected with the heat conduction column 15, the heating end of the semiconductor refrigeration sheet 16 is connected with the heat dissipation fin 17, and the upper portion of the heat conduction sheet 14 is provided with an insulating pad 13.

[0027] The base 1 is provided with a plurality of air inlet channels 18 and air outlet channels 21, the ventilation component comprises a fan 19 arranged in the interior of the air inlet channel 18, and a dust screen 20 arranged at the entrance of the air inlet channel 18, the dust screen 20 is provided with a frame 22, the frame 22 is provided with four fixing blocks 23, and the fixing blocks 23 are provided with first fixing bolts 24 threadedly connected with the base 1.

[0028] In this embodiment, the interior of the shell 2 is provided with a temperature control switch (not shown), when the temperature in the shell 2 reaches the preset temperature range of the temperature control switch, the temperature control switch controls the semiconductor refrigeration sheet 16 and the fan 19 to work, the heat emitted by the battery is conducted to the refrigeration end of the semiconductor refrigeration sheet 16 through the insulating pad 13 and the heat conduction sheet 14 to replace the cold and heat, so as to realize the effect of heat dissipation of the cylindrical battery, and the heat of the heating end of the semiconductor refrigeration sheet 16 is transmitted to the heat dissipation fin 17, at the same time, the fan 19 transports the external air, the air enters from the air inlet channel 18 and is discharged from the air outlet channel 21, the air is replaced with the cold and heat of the heat dissipation fin 17, and the heat is discharged through the air force, so as to ensure the heat dissipation performance of the battery box.

[0029] As shown in the third embodiment, Figure 1 and Figure 2 As shown, the serial-parallel battery box proposed in this embodiment, compared with the first embodiment, the top cover 3 is provided with a plurality of stepped holes 25 matched with the limiting seats 4 and a plug block 26 embedded in the shell 2, the shell 2 and the top cover 3 are both provided with a plurality of connecting ears 27, and the connecting ears 27 are both provided with second fixing bolts 28.

[0030] In this embodiment, the aperture of the stepped hole 25 towards the interior of the shell 2 is larger than the aperture towards the outside, and the cylindrical battery is fixed and limited by the limiting groove 5; the plug block 26 is used for the fixed installation of the top cover 3 to play a pre-positioning role, and then the connecting ear 27, the second fixing bolt 28 and the nut are used to fix the top cover 3 and the shell 2.

[0031] The embodiment of the utility model has been explained in detail in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A series-parallel battery box, characterized by comprising: The utility model relates to a base (1) is provided with a shell (2) on it, and a top cover (3) is provided on the shell (2), a limiting mechanism includes a plurality of rectangular array distribution limiting seat (4) with limiting slot (5) in the shell (2), four annular array distribution clamping plate (6) with anti -skid pad (7) are provided on it, the sliding block (8) is provided on the clamping plate (6), the guide block (9) is provided on the sliding block (8), three springs (10) are provided on the clamping plate (6), the clamping plate (6) has two up and down distribution inclined planes, the sliding block (8) is slidably connected with the limiting seat (4), the limiting seat (4) is provided with the sliding slot (12) for the sliding connection of guide block (9) in the inside, a plurality of step holes (25) and the insert block (26) that can be embedded shell (2) are provided on the top cover (3) and are matched with the limiting seat (4), a plurality of connecting lug (27) are provided on the shell (2) and the top cover (3), and the second fixed bolt (28) is provided on the connecting lug (27). Three fixed rods (11) are provided on the clamping plate (6), and the spring (10) is sleeved on the fixed rod (11). The heat dissipation mechanism is arranged in the shell (2) and the base (1) in communication, and the heat dissipation mechanism comprises a heat conduction assembly and a ventilation assembly, the heat conduction assembly comprises a heat conduction fin (14) arranged at the bottom of the limiting slot (5), a heat conduction column (15) penetrating through the limiting seat (4) and connected with the heat conduction fin (14), a semiconductor refrigeration fin (16) arranged in the base (1), and a plurality of heat dissipation fins (17), the refrigeration end of the semiconductor refrigeration fin (16) is connected with the heat conduction column (15), and the heating end of the semiconductor refrigeration fin (16) is connected with the heat dissipation fin (17).

2. The series-parallel battery box according to claim 1, wherein An insulating pad (13) is arranged above the heat conduction fin (14).

3. The series-parallel battery box according to claim 1, wherein A plurality of air inlet channels (18) and air outlet channels (21) are arranged on the base (1), the ventilation assembly comprises a fan (19) arranged in the air inlet channel (18), and a dust screen (20) arranged at the entrance of the air inlet channel (18).

4. The series-parallel battery box according to claim 3, wherein A frame (22) is arranged on the dust screen (20), four fixing blocks (23) are arranged on the frame (22), and a first fixed bolt (24) is arranged in threaded connection with the base (1) on the fixing block (23).

5. The series-parallel battery box according to claim 3, wherein ​ 6. A series-parallel battery box according to claim 5, wherein ​

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