Air-cooled energy storage battery box

Abstract

The utility model provides an air-cooled energy storage battery box which comprises an air-cooled box mechanism, a battery cell supporting assembly is arranged at the bottom of the air-cooled box mechanism, and the battery cell supporting assembly comprises a ventilation hollowed-out plate and reinforcing ribs arranged at the two ends of the upper portion of the ventilation hollowed-out plate respectively. Two rows of battery cell groups of the battery box are arranged on the ventilation hollowed-out plate and limited between the two reinforcing ribs, a fire detection pipe is arranged at the upper ends of the two rows of battery cell groups in a surrounding mode, two fans are symmetrically arranged at the front end of the air cooling box mechanism, an upper air inlet is formed in the upper end of the air cooling box mechanism, and a lower air inlet is formed in the lower end of the air cooling box mechanism. Side air inlet groups are symmetrically arranged on the two sides, a rear air inlet group is arranged at the rear end, a middle ventilation channel is arranged between the two rows of battery cell groups, and a left ventilation channel, a right ventilation channel and an upper ventilation channel are respectively arranged between the left, right and upper surfaces of the two rows of battery cell groups and the inner wall of the air cooling box mechanism. The utility model relates to the technical field of batteries.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a wind cooling energy storage battery box. BACKGROUND

[0002] With the rapid development of new energy industry, energy storage system plays an increasingly important role in power storage and regulation, electric vehicle energy supply, etc. As a key component of the energy storage system, the design of the energy storage battery box directly affects the energy density, service life and safety of the system. In particular, with the growing demand for energy storage, higher requirements are placed on the reliability and safety of the energy storage system.

[0003] Traditional energy storage battery boxes mainly focus on the arrangement of batteries and heat dissipation schemes. Since a large amount of heat is generated during the operation of the batteries, if the heat cannot be dissipated in time and effectively, it may cause the battery temperature to be too high, affecting the battery life and even causing fire accidents and other safety accidents. Therefore, as an effective heat dissipation means, the air cooling technology has been widely used in the design of energy storage battery boxes.

[0004] However, the existing air cooling system is not reasonable in air flow design, resulting in poor cooling effect. Especially during high-load operation of the batteries, it is difficult to ensure that all battery cells can be uniformly and effectively cooled. In addition, the existing air cooling system adopts a complex structure design to improve the heat dissipation effect, which not only increases the manufacturing cost but also increases the maintenance difficulty. Although the air cooling system can effectively reduce the battery temperature, in extreme cases such as single cell short circuit or overheating, it may still cause a fire. The existing safety protection measures often rely on external monitoring systems, which have a relatively slow response speed and cannot take immediate measures to prevent the accident from spreading.

[0005] Therefore, the utility model designs a kind of wind cooling energy storage battery box to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the defects of the above prior art, the utility model provides a wind cooling energy storage battery box to solve the problem of uneven battery cell temperature and low heat dissipation efficiency caused by unreasonable air flow design in the prior art.

[0007] To achieve the above object, the technical scheme adopted by the utility model is: a forced air cooling energy storage battery box, comprising a forced air cooling box mechanism, the bottom of the forced air cooling box mechanism is provided with an electric core support assembly, the electric core support assembly comprises a ventilation openwork plate and reinforcing ribs respectively arranged at the upper two ends of the ventilation openwork plate, two rows of electric core groups of the battery box are arranged on the ventilation openwork plate and are limited between the two reinforcing ribs, the upper end of the two rows of electric core groups is provided with a fire detection tube, the front end of the forced air cooling box mechanism is symmetrically provided with two air fans, the upper end of the forced air cooling box mechanism is provided with an upper air inlet, the two sides are symmetrically provided with a side air inlet group, the rear end is provided with a rear air inlet group, the middle part between the two rows of electric core groups is a middle ventilation channel, the left, right and upper three sides of the two rows of electric core groups are respectively a left ventilation channel, a right ventilation channel and an upper ventilation channel between the inner wall of the forced air cooling box mechanism, and the bottom end face of the ventilation openwork plate is hollowed out to form a lower ventilation channel.

[0008] Based on the above, the beneficial effects of the forced air cooling energy storage battery box are to solve the problems of uneven electric core temperature and low heat dissipation efficiency caused by unreasonable air flow design in the prior art forced air cooling energy storage battery box, mainly embodied in:

[0009] 1. The utility model discloses a reasonable planning of the air flow path in the forced air cooling box mechanism, forms the air inlet from the upper air inlet, the side air inlet group and the rear air inlet group, and combines the effect of the air fan, so that the cold air can uniformly flow into the battery box, and through the middle ventilation channel, the left ventilation channel, the right ventilation channel, the upper ventilation channel and the lower ventilation channel, the effective cooling of the electric core group is realized, and the multi-directional air inlet mode ensures that all the electric cores can be uniformly cooled, and the overall heat dissipation efficiency is improved.

[0010] 2. The utility model discloses a fire detection tube arranged around the upper end of the electric core group, and the fire detection tube adopts a special polymer-based thermal sensitive material, when the temperature of the electric core is abnormally high, the fire detection tube can quickly respond and release the fire-fighting gas, so that the fireproof effect is achieved, and the safety protection ability of the forced air cooling energy storage battery box under extreme conditions is improved.

[0011] Further, the electric core group is composed of a plurality of compact electric cores, a front electric core element on the front end face of the compact electric core at the forefront and a rear electric core element on the rear end face of the compact electric core at the tail end, the plurality of compact electric cores are limited between the two reinforcing ribs, the front electric core element is tightly pressed on the reinforcing rib at the front end of the forced air cooling box mechanism, and the rear electric core element is tightly pressed on the reinforcing rib at the rear end of the forced air cooling box mechanism.

[0012] Based on the above, the utility model discloses a compact electric core is limited between the reinforcing rib, and utilizes the front electric core element and rear electric core element and carries out firm support, realizes the close arrangement and structural stability of electric core group, thereby improves the space utilization of battery box and overall mechanical stability, ensures the safety of electric core and the effectiveness of heat dissipation system under various working conditions.

[0013] Further, the upper front end of the two rows of electric core groups is provided with a single-end fire detection tube fixing part, and the upper rear end of the two rows of electric core groups is provided with a double-end fire detection tube fixing part.

[0014] Further, the fire detection tube is a special polymer-based heat-sensitive tube, which is used to melt and spray internal fire-fighting gas when the temperature of the electric core exceeds the warning value.

[0015] Further, the air-cooled box mechanism includes an upper air-cooled box and a lower air-cooled box, the upper air-cooled box is arranged on the upper end of the lower air-cooled box, the side air inlet group includes an upper side air inlet and a lower side air inlet, the rear air inlet group includes a rear upper air inlet and a rear lower air inlet, wherein the upper side air inlet and the rear upper air inlet are located on the upper air-cooled box, the lower side air inlet and the rear lower air inlet are located on the lower air-cooled box, the hollow holes of the upper air inlet, the upper side air inlet, the rear upper air inlet, the lower side air inlet and the rear lower air inlet are hexagons, and the hole diameter is 10 mm.

[0016] To make the above features of the utility model and the purposes to be achieved more clearly, the utility model is further described below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional schematic view of the utility model;

[0018] Figure 2 is another three-dimensional schematic view of the utility model from another perspective;

[0019] Figure 3 is a cooperation schematic view of the electric core group and the fire detection tube of the utility model;

[0020] Figure 4 is a schematic view of the electric core support assembly of the utility model;

[0021] Figure 5: it is the schematic view of middle ventilation passage, left side ventilation passage and right side ventilation passage of the utility model;

[0022] Figure 6 : it is the cross section schematic view of upper end ventilation passage and lower end ventilation passage of the utility model.

[0023] Explanation of reference numerals: 1-air cooling box mechanism, 11-upper air inlet, 12-lateral air inlet group, 121-upper lateral air inlet, 122-lower lateral air inlet, 13-rear air inlet group, 131-rear upper air inlet, 132-rear lower air inlet, 14-upper air cooling box, 15-lower air cooling box, 3-cell support assembly, 31-ventilation openwork plate, 311-lower end ventilation passage, 32-stiffener, 4-cell group, 41-middle ventilation passage, 42-left side ventilation passage, 43-right side ventilation passage, 44-upper end ventilation passage, 45-compact cell, 46-front cell element, 47-rear cell element, 48-single-end fire detection tube fixing piece, 49-double-end fire detection tube fixing piece, 5-fire detection tube, 6-fan. DETAILED DESCRIPTION

[0024] As Figures 1-6 shown, an air cooling energy storage battery box, comprising an air cooling box mechanism 1, the bottom of the air cooling box mechanism 1 is provided with a cell support assembly 3, the cell support assembly 3 comprises a ventilation openwork plate 31 and a stiffener 32 arranged at the upper two ends of the ventilation openwork plate 31 respectively, two rows of cell groups 4 of the battery box are arranged on the ventilation openwork plate 31 and are limited between the two stiffeners 32, a fire detection tube 5 is arranged around the upper end of the two rows of cell groups 4, two fans 6 are symmetrically arranged at the front end of the air cooling box mechanism 1, an upper air inlet 11 is arranged at the upper end of the air cooling box mechanism 1, lateral air inlet groups 12 are symmetrically arranged on both sides, a rear air inlet group 13 is arranged at the rear end, a middle ventilation passage 41 is formed between the two rows of cell groups 4, left side ventilation passages 42, right side ventilation passages 43 and upper end ventilation passages 44 are respectively formed between the left, right and upper three surfaces of the two rows of cell groups 4 and the inner wall of the air cooling box mechanism 1, and a lower end ventilation passage 311 is formed by hollowing out the bottom end surface of the ventilation openwork plate 31.

[0025] The cell group 4 is composed of a plurality of compact cells 45, a front cell element 46 on the front end surface of the compact cell 45 at the foremost end and a rear cell element 47 on the rear end surface of the compact cell 45 at the rearmost end, the plurality of compact cells 45 are limited between the two stiffeners 32, the front cell element 46 is tightly pressed on the stiffener 32 at the front end of the air cooling box mechanism 1, and the rear cell element 47 is tightly pressed on the stiffener 32 at the rear end of the air cooling box mechanism 1.

[0026] The upper front end of the two rows of the battery cell groups 4 is provided with a single-end fire detection tube fixing part 48, and the upper rear end of the two rows of the battery cell groups 4 is provided with a double-end fire detection tube fixing part 49, the fire detection tube 5 is arranged from the single-end fire detection tube fixing part 48 of one row of the battery cell groups 4 at the front end to the input end of the double-end fire detection tube fixing part 49 at the rear end of the row of the battery cell groups 4, and then returns to the single-end fire detection tube fixing part 48 of the other row of the battery cell groups 4 at the front end through the output end of the double-end fire detection tube fixing part 49, so as to form a U-shaped connection.

[0027] The fire detection tube 5 is a special polymer-based heat-sensitive tube, which is used for melting and spraying internal fire-fighting gas when the temperature of the battery cell exceeds the warning value.

[0028] The air-cooled box mechanism 1 comprises an upper air-cooled box 14 and a lower air-cooled box 15, the upper air-cooled box 14 is arranged at the upper end of the lower air-cooled box 15, the side air inlet group 12 comprises an upper side air inlet 121 and a lower side air inlet 122, the rear air inlet group 13 comprises a rear upper air inlet 131 and a rear lower air inlet 132, wherein the upper side air inlet 121 and the rear upper air inlet 131 are located on the upper air-cooled box 14, the lower side air inlet 122 and the rear lower air inlet 132 are located on the lower air-cooled box 15, and the hollow holes of the upper air inlet 11, the upper side air inlet 121, the rear upper air inlet 131, the lower side air inlet 122 and the rear lower air inlet 132 are hexagons with a diameter of 10 mm.

[0029] In summary, the specific implementation manner of the utility model is:

[0030] The air-cooled energy storage battery box is internally designed with multiple air inlet paths to ensure that the cold air can uniformly flow into the inside of the battery box, the upper air inlet 11, the side air inlet group 12 and the rear air inlet group 13 are arranged on the box body, the problem of direct airflow caused by a single air inlet direction in the traditional design is avoided, the upper air inlet 11, the side air inlet group 12 and the rear air inlet group 13 do not directly face the fan 6, the distance of air flow is prolonged, the cooling effect is enhanced, in addition, the upper air inlet 11 and the side air inlet group 12 are arranged on the side and top of the box body respectively, the temperature gradient change in the direction of airflow can be reduced, the consistency of the temperature around the battery cell is ensured, and the air inlets are hexagonal holes with a diameter of 10 mm, such a design not only reduces the air resistance, but also ensures sufficient ventilation volume and provides necessary protection function.

[0031] Several compact battery cells 45 are limited between two reinforcing ribs 32 and are stably supported by front and rear battery cell elements 46 and 47, achieving compact arrangement, improving space utilization and overall mechanical stability of the battery box;

[0032] The utility model still introduced the fire tube 5, single -end fire tube fixing piece 48 and double -end fire tube fixing piece 49 group, the fire tube 5 is full of fire -fighting gas, and is evenly arranged and is fixed on the battery cell group 4, when the battery cell temperature exceeds the warning value, the fire tube 5 will be heated and melt, and fire -fighting gas is sprayed, prevents further thermal runaway and heat diffusion, thereby improved the security of system.

[0033] The above only for the most optimal solution embodiment of the utility model, not for limiting the utility model, the person skilled in the art makes various modifications or replacements to the utility model without departing from the utility model's essence and protection scope, which should be within the utility model's protection scope.

Claims

1. An air-cooled energy storage battery box, characterized by: The application relates to a battery cooling box mechanism (1), the bottom of the battery cooling box mechanism (1) is provided with an electric core supporting assembly (3), the electric core supporting assembly (3) comprises a ventilation hollow plate (31) and reinforcing ribs (32) arranged at the upper ends of the ventilation hollow plate (31), two rows of electric core groups (4) of the battery box are arranged on the ventilation hollow plate (31) and are limited between the two reinforcing ribs (32), the upper ends of the two rows of electric core groups (4) are provided with a fire detecting tube (5), the front end of the battery cooling box mechanism (1) is symmetrically provided with two air fans (6), the upper end of the battery cooling box mechanism (1) is provided with an upper air inlet (11), the left and right sides of the battery cooling box mechanism (1) are symmetrically provided with side air inlet groups (12), the rear end of the battery cooling box mechanism (1) is provided with rear air inlet groups (13), the middle part between the two rows of electric core groups (4) is a middle ventilation channel (41), the left side, the right side and the upper side of the two rows of electric core groups (4) are respectively a left side ventilation channel (42), a right side ventilation channel (43) and an upper end ventilation channel (44) between the inner walls of the battery cooling box mechanism (1), and the bottom end surface of the ventilation hollow plate (31) is hollowed out to form a lower end ventilation channel (311).

2. The air-cooled energy storage battery box of claim 1, wherein: The electric core group (4) is composed of compact electric cores (45), front electric core elements (46) on the front end surfaces of the compact electric cores (45) at the foremost ends and rear electric core elements (47) on the rear end surfaces of the compact electric cores (45) at the rearmost ends, the compact electric cores (45) are limited between the two reinforcing ribs (32), the front electric core elements (46) are tightly pressed on the reinforcing ribs (32) at the front end of the battery cooling box mechanism (1), and the rear electric core elements (47) are tightly pressed on the reinforcing ribs (32) at the rear end of the battery cooling box mechanism (1).

3. The air-cooled battery box of claim 1, wherein: The upper front ends of the two rows of electric core groups (4) are provided with single-head fire detecting tube fixing members (48), the upper rear ends of the two rows of electric core groups (4) are provided with double-head fire detecting tube fixing members (49), the fire detecting tube (5) starts from the single-head fire detecting tube fixing member (48) of one row of electric core groups (4) at the front end, extends to the input end of the double-head fire detecting tube fixing member (49) at the rear end along the upper end of the row of electric core groups (4), returns to the single-head fire detecting tube fixing member (48) of the other row of electric core groups (4) at the front end through the output end of the double-head fire detecting tube fixing member (49) along the upper end of the other row of electric core groups (4), and thus a U-shaped connection is formed.

4. The air-cooled battery box of claim 1, wherein: The fire detecting tube (5) is a special polymer-based heat-sensitive tube which is used for melting and spraying internal fire-fighting gas when the temperature of the electric core exceeds an alarm value.

5. The air-cooled battery box of claim 1, wherein: The air-cooled box mechanism (1) comprises an upper air-cooled box (14) and a lower air-cooled box (15), the upper air-cooled box (14) is arranged at the upper end of the lower air-cooled box (15), the side air inlet group (12) comprises an upper side air inlet (121) and a lower side air inlet (122), the rear air inlet group (13) comprises a rear upper air inlet (131) and a rear lower air inlet (132), wherein the upper side air inlet (121) and the rear upper air inlet (131) are located on the upper air-cooled box (14), the lower side air inlet (122) and the rear lower air inlet (132) are located on the lower air-cooled box (15), the hollow holes of the upper air inlet (11), the upper side air inlet (121), the rear upper air inlet (131), the lower side air inlet (122) and the rear lower air inlet (132) are hexagons, and the hole diameter is 10 mm.

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