Energy storage battery pack cooling system

Abstract

The utility model relates to the technical field of energy storage battery pack cooling, in particular to an energy storage battery pack cooling system which comprises a cooling mechanism and a plurality of storage batteries arranged on the cooling mechanism, and the storage batteries are placed on the cooling mechanism. The two sets of mounting mechanisms are oppositely arranged on the two sides of the cooling mechanism, each mounting mechanism comprises two sets of fixing bases, the two sets of fixing bases are oppositely and fixedly connected to the two sides of the cooling mechanism, fixing grooves are formed in the bottoms of the four fixing bases, and the four fixing bases are in threaded connection with fixing bolts; studs are fixedly connected to the tops of the four fixing columns, a pressing plate is inserted between the two opposite fixing columns located on the two sides of the storage battery, nuts are connected to the studs in a threaded mode, the pressing plate is clamped between the nuts and the fixing columns, and the liquid cooling plate and an assembly for fixing the battery are arranged into a whole to be connected with a vehicle body. Not only is the compactness of the structure increased, but also the heat on the fixed bracket can be absorbed to protect the battery.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cooling system, concretely to a kind of energy storage battery pack cooling system, belong to energy storage battery pack cooling technical field. BACKGROUND

[0002] Energy storage battery pack (PACK) is composed of multiple single batteries by series connection, parallel connection or mixed connection, equipped with battery management system (BMS) to monitor voltage, temperature, state of charge (SOC), ensure safe and efficient operation;It is as independent electric energy storage unit, supports charge-discharge cycle, is the key equipment of energy storage;It can be applied to automobile production, electronic equipment and power system energy storage, and energy storage battery pack can be cooled generally divided into air cooling, water cooling and phase change cooling.

[0003] The current energy storage battery pack for automobile is cooled by water cooling mode, and a liquid cooling plate is usually installed at the bottom of the battery pack, the liquid cooling plate is installed on the vehicle body, a heat-conducting pad is attached between the liquid cooling plate and the battery pack, a cooling cavity is arranged in the liquid cooling plate, and the liquid cooling plate is connected with a cold water tank, after the heat-conducting pad absorbs the heat of the battery, the liquid in the liquid cooling plate absorbs the heat and can dissipate the heat to achieve the purpose of cooling;However, when the liquid cooling plate and the battery pack are installed, a bracket for fixing the battery needs to be installed on the vehicle body, so that the bottom of the battery is in complete contact with the heat-conducting pad to avoid wrinkles and air bubbles, and the bracket for fixing the battery is not connected with the liquid cooling plate, which not only has poor compactness, but also is difficult to cool and dissipate heat after absorbing the heat of the battery, and the bracket after absorbing heat is in long-time contact with the battery, so that the heat cannot be dissipated, which can easily damage the battery. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above problems and provides an energy storage battery pack cooling system, which integrates the liquid cooling plate and the battery fixing assembly to be connected with the vehicle body, so as to increase the compactness of the structure and absorb the heat of the fixing bracket to protect the battery.

[0005] The utility model discloses a kind of energy storage battery pack cooling systems, including cooling mechanism and multiple batteries arranged thereon, multiple the battery is placed on cooling mechanism;Two groups of mounting mechanisms, two groups The installation mechanism is oppositely arranged at the two sides of cooling mechanism, the installation mechanism includes two groups of fixed seats, two groups of fixed seats are oppositely fixedly connected at the two sides of cooling mechanism, and the bottom of four The fixed seat is provided with fixed slot, and four The fixed seat is screw-connected with fixed bolt;Fixed mechanism, the fixed mechanism is arranged on the fixed seat, the fixed mechanism includes two fixed strips, the fixed strip is inserted in the inside of two fixed slots on the same side, two The fixed strip is fixedly connected with two fixed columns, two The fixed column on the same side is located between adjacent two batteries, and the top of four The fixed column is fixedly connected with stud, and the fixed column between two The fixed column opposite on the two sides of the battery is inserted with pressing plate, and the stud is screw-connected with nut, and the pressing plate is clamped between nut and fixed column.

[0006] Specifically, the cross section of the fixed seat is L-shaped structure, and the side surface of the fixed strip inside the two fixed slots is rectangular structure.

[0007] Specifically, the surface of two The pressing plate is flush with the surface of battery, and the pressing plate is in contact with the top edge of two batteries.

[0008] Specifically, the fixed mechanism further includes heat dissipation hole, and the surface of two The pressing plate is provided with a plurality of heat dissipation holes.

[0009] Specifically, the cooling mechanism includes liquid cooling plate, and multiple The battery is placed on the liquid cooling plate, the inside of the liquid cooling plate is S-shaped and provided with water cooling cavity, two The connecting joint is installed on the liquid cooling plate and communicated with the two ends of water cooling cavity, and the side surface of the fixed strip is in contact with the side wall of the liquid cooling plate of cooling machine.

[0010] Specifically, a plurality of first heat-conducting pads are attached to the liquid cooling plate, and the first heat-conducting pads are in contact with the bottom of the battery.

[0011] Specifically, a second heat-conducting pad is arranged between adjacent two batteries, and the side area of the second heat-conducting pad is equal to the side area of the battery.

[0012] Specifically, the fixed column is provided with a protection mechanism, the protection mechanism includes two fixed frames, two The fixed frame is slidably connected on two The fixed column opposite on the two sides of the battery, and two The fixed frame is screw-connected with bidirectional screw rod between two opposite ends.

[0013] Specifically, the cross section of the fixed frame is V-shaped structure, and the fixed frame is located at the side center of the battery.

[0014] Specific, the protection mechanism further includes reinforcing frame, two fixed frame are relatively fixedly connected with two reinforcing frames, and the reinforcing frame of the top seal is in contact with the corner of the two batteries on the outside.

[0015] The utility model discloses the beneficial effect is: four fixed bolts are tightened and realize the installation of cooling mechanism, and the fixed strip is also clamped between the fixed seat and the vehicle body, then four fixed columns are in contact with the lateral wall of the battery, realize the clamping of the two lateral walls of the battery, and the two pressing plates are inserted to the opposite two threaded spools, and the pressing plate is tightened through the nut, realizes the top fixed of the battery, and the support of fixed strip, fixed column and pressing plate realizes the fixed of battery and is in contact with liquid cooling plate, and the compactness of overall structure is increased, then fixed strip, fixed column and pressing plate can transmit the heat absorbed to cooling mechanism, and the purpose of cooling can also be achieved, avoids the fixed strip, fixed column and the place of pressing plate and battery contact to damage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic diagram of the utility model;

[0017] Figure 2 It is connecting structure schematic diagram of liquid cooling plate, connecting joint machine first heat conduction plate of the utility model;

[0018] Figure 3 It is connecting structure schematic diagram of liquid cooling plate and cooling cavity of the utility model;

[0019] Figure 4 It is connecting structure schematic diagram of battery, first heat conduction pad and second heat conduction pad of the utility model;

[0020] Figure 5 It is connecting structure schematic diagram of fixed column, fixed frame and reinforcing frame of the utility model;

[0021] Figure 6 It is connecting structure schematic diagram of fixed seat, fixed bolt and fixed strip of the utility model.

[0022] In the drawing: 1, battery;2, cooling mechanism;201, liquid cooling plate;202, connecting joint;203, water cooling cavity;3, installation mechanism;301, fixed seat;302, fixed groove;303, fixed bolt;4, fixed mechanism;401, fixed strip;402, fixed column;403, threaded spool;404, pressing plate;405, heat dissipation hole;406, nut;5, first heat conduction pad;6, protection mechanism;601, fixed frame;602, reinforcing frame;603, bidirectional screw;7, second heat conduction pad. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0024] Please refer to Figures 1-6 As shown in FIG. 1, a kind of energy storage battery pack cooling system, including cooling mechanism 2 and multiple batteries 1 set on it, multiple the battery 1 is placed on cooling mechanism 2;Two groups of mounting mechanism 3, two groups of the mounting mechanism 3 are oppositely arranged on the two sides of cooling mechanism 2, the mounting mechanism 3 includes two groups of fixed seat 301, two groups of fixed seat 301 are oppositely fixedly connected on the two sides of cooling mechanism 2, the bottom of four fixed seat 301 is provided with fixed groove 302, and four fixed seat 301 are all screw-connected with fixed bolt 303;Fixed mechanism 4, the fixed mechanism 4 is arranged on fixed seat 301, the fixed mechanism 4 includes two fixed strips 401, the fixed strip 401 is inserted in the inside of two fixed grooves 302 on the same side, two fixed columns 402 are fixedly connected on two fixed strips 401, two fixed columns 402 on the same side are located between adjacent two batteries 1, the top of four fixed columns 402 is all fixedly connected with stud 403, pressure plate 404 is inserted between two fixed columns 402 on the two sides of battery 1 oppositely, nut 406 is screw-connected on stud 403, and pressure plate 404 is clamped between nut 406 and fixed column 402.

[0025] As a kind of technical optimization scheme of the present application, the section of fixed seat 301 is L-shaped structure, and the side surface of fixed strip 401 inside two fixed grooves 302 is rectangular structure, when the fixed strip 401 is installed, the fixing effect of it is increased, the surface of two pressure plates 404 is flush with the surface of battery 1, and the pressure plate 404 is in contact with the top edge of two batteries 1, so that the pressure plate 404 can absorb the heat of battery 1, and the compactness of structure is increased.

[0026] As a kind of technical optimization scheme of the present application, the fixed mechanism 4 further includes heat dissipation hole 405, the surface of two pressure plates 404 is all provided with multiple heat dissipation holes 405, to ensure that the pressure plate 404 is pressed to battery 1 while increasing air flow to facilitate heat dissipation.

[0027] As a technical optimization scheme of the utility model, the cooling mechanism 2 includes liquid cooling plate 201, multiple battery 1 is placed on liquid cooling plate 201, the inside of liquid cooling plate 201 is S-shaped and is provided with water cooling cavity 203, two connecting joints 202 that communicate with the both ends of water cooling cavity 203 are installed on liquid cooling plate 201, the side of fixed strip 401 is in contact with the side wall of cooling machine liquid cooling plate 201, two connecting joints 202 are connected with water inlet pipe and return pipe when cooling, realize the circulation of coolant and reach the cooling effect of battery 1, multiple first heat-conducting pads 5 are bonded on liquid cooling plate 201, the bottom of first heat-conducting pad 5 is in contact with battery 1, increase the heat-conducting effect of battery 1, second heat-conducting pad 7 is equipped between adjacent two battery 1, the side area of second heat-conducting pad 7 is equal to the side area of battery 1, if one battery 1 is damaged, another battery 1 can be protected, and the cascade damage is avoided.

[0028] As a technical optimization scheme of the utility model, the fixed column 402 is equipped with protection mechanism 6, the protection mechanism 6 includes two fixed frames 601, two fixed frames 601 are slidably connected on the opposite two fixed columns 402 of battery 1, two-way screw rod 603 is threadedly connected between the two opposite ends of two fixed frames 601, two fixed frames 601 are slid with fixed column 402 when battery 1 is installed, two fixed frames 601 are relatively clamped by two-way screw rod 603, multiple battery 1 is simultaneously fixed, the cross section of fixed frame 601 is V-shaped structure, and the fixed frame 601 is located at the side surface center of battery 1, the fixing effect of battery 1 is increased, and the stress is uniform, the protection mechanism 6 further includes reinforcing frame 602, two reinforcing frames 602 are fixedly connected on two fixed frames 602, the reinforcing frame 602 of top seal is in contact with the corner of two battery 1 on the outside, and the vertical fastening effect of two battery 1 on the outside is increased.

[0029] During installation, the liquid cooling plate 201 is placed in the designated installation position on the vehicle body. Multiple first thermal pads 5 are attached to the liquid cooling plate 201, and multiple batteries 1 are placed on the first thermal pads 5 to increase heat absorption and facilitate cooling. Since the batteries 1 are in contact with each other, a second thermal pad 7 is placed between the contacting batteries 1 to prevent cascading damage caused by the failure of one battery 1. This achieves the initial positioning of the batteries 1 and the liquid cooling plate 201. The screw holes on the four mounting brackets 301 correspond to the four screw holes on the vehicle body. Further, the two fixing strips 4 are then... Insert the fixing strip 401 into the fixing groove 302 at the bottom of the fixing seat 301 on both sides of the liquid cooling plate 201. When inserting, the liquid cooling plate 201 can be slightly lifted to facilitate the insertion of the fixing strip 401. Align the two holes on the two fixing strips 401 with the holes on the fixing seat 301. At this time, the holes on the vehicle body, the holes on the fixing seat 301, and the fixing strip 401 are in the same position. Tighten the four fixing bolts 303 to complete the installation of the liquid cooling plate 201. At the same time, the fixing strip 401 is clamped between the fixing seat 301 and the vehicle body. Then, the four fixing posts 402 also abut against the side wall of the battery 1, realizing the clamping of the two side walls of the battery 1. Two pressure plates 404 are inserted into two opposing studs 403, and the pressure plates 404 are tightened with nuts 406, thus fixing the top of the battery 1. The bracket formed by the fixing strip 401, fixing post 402, and pressure plates 404 not only fixes the battery 1 but also abuts against the liquid cooling plate 201, increasing the compactness of the overall structure. The fixing strip 401, fixing post 402, and pressure plates 404 can transfer the absorbed heat to the liquid cooling plate 201, achieving the purpose of cooling and preventing damage to the contact points between the fixing strip 401, fixing post 402, and pressure plates 404 and the battery 1. The heat dissipation on the pressure plates 404 is also improved. The heat vent 405 facilitates heat dissipation. Finally, the two fixing frames 601 are inserted into the interiors of the two opposing fixing posts 402 respectively. The two ends of the opposing fixing frames 601 are connected by threads through the bidirectional screw 603. Tightening the bidirectional screw 603 achieves the clamping and fixing of the two fixing frames 601 on both sides of the multiple batteries 1. Similarly, the absorbed heat will be transferred to the liquid cooling plate 201 to achieve the purpose of cooling and protecting the battery. The water inlet pipe and water return pipe of the car water cooling mechanism are connected to the two connecting joints 202 on the liquid cooling plate 201 to complete the installation. The coolant can flow from the water inlet pipe to the interior of the water cooling cavity 203 to dissipate heat from the batteries 1.

[0030] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0031] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A cooling system for an energy storage battery pack, comprising a cooling mechanism (2) and a plurality of batteries (1) disposed thereon, characterized in that: Two sets of mounting mechanisms (3) are arranged opposite to each other on both sides of the cooling mechanism (2). The mounting mechanism (3) includes two sets of fixing seats (301). The two sets of fixing seats (301) are fixedly connected to both sides of the cooling mechanism (2). The bottom of the four fixing seats (301) is provided with fixing grooves (302), and each of the four fixing seats (301) is threaded with fixing bolts (303). A fixing mechanism (4) is provided on a fixing base (301). The fixing mechanism (4) includes two fixing bars (401). The fixing bars (401) are inserted into the interior of two fixing slots (302) on the same side. Two fixing posts (402) are fixedly connected to each of the two fixing bars (401). The two fixing posts (402) on the same side are located between two adjacent batteries (1). The top of each of the four fixing posts (402) is fixedly connected to a stud (403). A pressure plate (404) is inserted between two opposite fixing posts (402) on both sides of the battery (1). A nut (406) is threaded onto the stud (403). The pressure plate (404) is clamped between the nut (406) and the fixing post (402).

2. The energy storage battery pack cooling system according to claim 1, characterized in that: The cross-section of the fixing seat (301) is L-shaped, and the sides of the fixing strips (401) inside the two fixing grooves (302) are rectangular.

3. The energy storage battery pack cooling system according to claim 1, characterized in that: The surfaces of the two pressure plates (404) are flush with the surface of the battery (1), and the pressure plates (404) abut against the top edges of the two batteries (1).

4. The energy storage battery pack cooling system according to claim 1, characterized in that: The fixing mechanism (4) also includes heat dissipation holes (405), and the surfaces of the two pressure plates (404) are provided with multiple heat dissipation holes (405).

5. The energy storage battery pack cooling system according to claim 1, characterized in that: The cooling mechanism (2) includes a liquid cooling plate (201), and multiple batteries (1) are placed on the liquid cooling plate (201). The liquid cooling plate (201) has an S-shaped water cooling cavity (203) inside. Two connecting joints (202) connected to both ends of the water cooling cavity (203) are installed on the liquid cooling plate (201). The side of the fixing strip (401) abuts against the side wall of the liquid cooling plate (201) of the cooling machine.

6. The energy storage battery pack cooling system according to claim 5, characterized in that: Multiple first thermal pads (5) are bonded to the liquid cooling plate (201), and the first thermal pads (5) are in contact with the bottom of the battery (1).

7. The energy storage battery pack cooling system according to claim 1, characterized in that: A second thermal pad (7) is provided between two adjacent batteries (1), and the side area of ​​the second thermal pad (7) is equal to the side area of ​​the battery (1).

8. The energy storage battery pack cooling system according to claim 1, characterized in that: The fixed column (402) is provided with a protective mechanism (6), which includes two fixed frames (601). The fixed frames (601) are slidably connected to the two fixed columns (402) on both sides of the battery (1). A two-way screw rod (603) is threaded between the two opposite ends of the two fixed frames (601).

9. A cooling system for an energy storage battery pack according to claim 8, characterized in that: The fixed frame (601) has a U-shaped cross-section and is located at the center of the side of the battery (1).

10. A cooling system for an energy storage battery pack according to claim 8, characterized in that: The protective mechanism (6) also includes a reinforcing frame (602), with two reinforcing frames (602) fixedly connected to each of the two fixed frames (601), and the top-sealed reinforcing frame (602) abutting against the corners of the two batteries (1) on the outside.

Images