CN218731251U

CN218731251U - Liquid cooling battery box

Info

Publication number: CN218731251U
Application number: CN202222811817.XU
Authority: CN
Inventors: 徐达平; 戴鸣
Original assignee: Suzhou Debo New Energy Co ltd
Current assignee: Suzhou Debo New Energy Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-24
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a liquid cooling battery box among the new forms of energy technical field, including the casing that is used for accomodating a plurality of battery module, the casing includes the liquid cooling bottom plate and sets up the bounding wall on the liquid cooling bottom plate, is provided with the apron that can relative bottom plate or bounding wall open and shut on the bounding wall, and the outside of bounding wall is provided with the guide tube hole of mutual disposition, wears to be equipped with in the guide tube hole to be used for the screw rod with casing afterbody and exterior structure locking, and the water inlet and the delivery port setting of liquid cooling bottom plate are in the bounding wall outside, and the bottom of liquid cooling bottom plate is equipped with the stiffening beam, is equipped with the bearing gyro wheel on the stiffening beam. The utility model discloses a liquid cooling battery box has realized the integrated design of liquid cooling board and box, has still realized the fastening of box afterbody, has excellent installation convenience and structural stability.

Description

Liquid cooling battery box

Technical Field

The utility model relates to a new forms of energy technical field, concretely relates to liquid cooling battery box.

Background

In the current industrial and commercial energy storage project, containers are mostly adopted as containers, a plurality of battery cluster frames are arranged in the containers, and a plurality of battery packs are arranged on each cluster frame. The battery pack case is generally fixed with a plurality of carrier beams at the bottom of the case, and the battery module is placed on the carrier beams. When the battery pack is subjected to external vibration or impact, the load beam is directly contacted with the battery module, and the safety of the battery is reduced.

For example: in the prior art: CN202023220644.1 is a battery pack box and a battery pack; disclosed is a battery pack for accommodating a battery module. The battery pack box body comprises a bearing beam, a daub layer and an installation beam. The bearing beam is arranged on the bottom plate of the battery pack box body. The daub layer is arranged on the bearing beam and used for supporting the battery module. The installation roof beam is fixed on the bottom plate, can with the installation ear fixed connection on the battery module.

The prior art has several major disadvantages:

first, after the battery pack box body is pushed into the battery cluster frame, the clearance in the container is narrow, and the cluster frame is usually arranged by the box wall or arranged in a back-to-back non-step-in type manner, so that the tail part of the battery pack box body is not convenient to fix with the battery cluster frame. The fastening combination between the battery pack box body and the battery cluster frame in the prior art adopts only the mounting lug of the front panel of the battery pack and the screwing mode of the cluster frame, the tail part cannot be fixed with the cluster frame, and a larger gap for relative movement still exists. The problems of fixing and transporting the tank body of the pool bag cannot be completely solved.

Secondly, the existing battery pack box body is pushed into a battery cluster frame, and mechanical friction and surface damage are easily caused due to the direct contact of the box body and the cluster frame.

Third, the heat dissipation structure is relatively single and passive.

Disclosure of Invention

The utility model overcomes prior art's is not enough, provides a liquid cooling battery box, has excellent installation convenience and structural stability, has still promoted accurate nature and the reliability of battery package box and exterior structure equipment location, and the box still has good heat dispersion from taking the liquid cooling board simultaneously.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a liquid cooling battery box, is including the casing that is used for accomodating a plurality of battery module, and the casing includes the bottom plate and sets up the bounding wall on the bottom plate, is provided with the apron that can relative bottom plate or bounding wall open and shut on the bounding wall, and the outside of bounding wall is provided with the guide tube hole of mutual disposition, wears to be equipped with in the guide tube hole to be used for the screw rod with casing and exterior structure equipment locking, and what the bottom plate adopted is the liquid cooling bottom plate.

In a preferred embodiment of the present invention, a liquid cooling flow channel is reserved in the liquid cooling bottom plate; the liquid cooling bottom plate is provided with a water inlet and a water outlet which are positioned on the outer side of the enclosing plate, and the water inlet and the water outlet are respectively provided with a cooling liquid joint connected with the liquid cooling flow channel.

In a preferred embodiment of the present invention, the bottom of the housing is provided with a plurality of reinforcing beams spanning the housing.

In a preferred embodiment of the present invention, the two ends of the stiffening beam are pivotally connected to a plurality of bearing rollers respectively.

The utility model discloses an in the preferred embodiment, be provided with the installation piece on the stiffening beam, the last pivotally connected with bearing gyro wheel of installation piece, the stiffening beam both ends still are provided with the logical groove that vertically link up, and the lower port in logical groove is worn to establish by the lower part of bearing gyro wheel part at least.

In a preferred embodiment of the utility model, the liquid-cooled battery box can be inserted into the battery cluster frame, and one end of the liquid-cooled battery box butted into the battery cluster frame is an installation side, and one side close to the outer side surface of the battery cluster frame is a display side; the guide tube hole is arranged on the outer side surface of the enclosing plate between the display side and the mounting side in a penetrating manner; and the depth of the shell is between the display side and the mounting side, the depth is D, and the depth L of the guide pipe hole is more than two thirds of D.

In a preferred embodiment of the utility model, the shell is provided with a limit supporting block; one end of the limiting supporting block is connected with the surrounding plate, and the other end of the limiting supporting block extends outwards and corresponds to the guide pipe hole; a limiting gap used for limiting the big end of the screw is reserved between the limiting supporting block and the hole inlet end of the guide pipe hole.

The utility model discloses an in the preferred embodiment, still be provided with spacing recess on the spacing supporting shoe.

In a preferred embodiment of the present invention, the liquid cooling bottom plate is made of extruded section; and a liquid-cold runner is prefabricated in the extruded section.

In a preferred embodiment of the present invention, the stiffening beam is a channel steel structure or a bow beam structure; and/or the periphery of the enclosing plate is also provided with a reinforcing fin.

The utility model provides a defect that exists among the technical background, the utility model discloses profitable technological effect is:

the utility model provides a liquid cooling battery box has realized the integrated design of liquid cooling board and box, has still realized the fastening of box afterbody, has excellent installation convenience and structural stability.

1. The two sides of the outer part of the enclosing plate are provided with guide tube holes which are oppositely arranged, and screw rods used for assembling and locking the shell and an external structure are arranged in the guide tube holes in a penetrating mode. Through the package assembly of screw rod and guide tube hole, especially adopt long screw and rectangular guide tube hole cooperation, solved and pushed the liquid cooling battery box behind the battery cluster frame because the container internal clearance is narrow, and the battery cluster frame leans on the tank wall setting usually or the non-walk-in overall arrangement back-to-back, is not convenient for wrap the afterbody of box and battery cluster frame fixed problem with the battery. Meanwhile, the problem that when the battery pack is transferred after being assembled, the battery pack frame and the battery pack box body are relatively displaced due to the shaking of the peripheral environment is effectively solved, and a more stable locking structure can be realized by screwing the screws, so that the battery pack is more stable than abutting limiting and inserting limiting; and meanwhile, the mechanical damage during assembly and use after assembly is reduced.

2. A limiting gap used for limiting the big end of the screw is reserved between the limiting supporting block and the hole inlet end of the guide pipe hole. Prevent the screw from falling off from the guide tube hole under external force when the screw is not used. And the limiting groove on the limiting supporting block is used for providing a supporting and guiding effect for a screwing tool in the screw screwing process.

3. The liquid cooling bottom plate is adopted for directly cooling and radiating, so that the radiating performance of the liquid cooling battery box is further improved, and the cooling installation structure of the liquid cooling battery box is also simplified. Furthermore, the liquid cooling bottom plate adopts an extruded section; a liquid cooling runner is prefabricated in the extruded section. So that no redundant pipeline is arranged in the containing cavity, and the safety performance is improved. The liquid cooling bottom plate of the extruded section bar can cut the extruded section bar according to the actual production requirement and the size length of the battery module, and the production adaptability is improved.

4. The bottom of the shell is provided with a plurality of reinforcing beams which are arranged in a crossing mode at intervals. The arrangement of the reinforcing beam improves the stability and the supporting strength of the support. And two ends of the reinforcing beam are respectively and pivotally connected with bearing rollers. The operation smoothness of liquid cooling battery box in inserting the battery cluster frame has been promoted, mechanical friction between liquid cooling battery box and the battery cluster frame has been reduced simultaneously.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a first schematic axial view of an embodiment of the present invention;

fig. 2 is a schematic axial view structural diagram ii according to an embodiment of the present invention;

fig. 3 is an axial view of the embodiment of the present invention, with the bottom of the housing facing outward;

fig. 4 is a schematic side view of an embodiment of the present invention;

fig. 5 is a schematic bottom view of the embodiment of the present invention;

FIG. 6 is a schematic view of the assembly of the liquid-cooled bottom plate and a plurality of reinforcing beams according to the embodiment of the present invention;

the cooling structure comprises a shell 1, a heat dissipation fin 11, a positioning guide hole 12, a limiting support block 13, a limiting groove 131, a liquid cooling bottom plate 14, a cooling liquid joint 141, a reinforcing beam 15, a through groove 151, a mounting block 16, a bearing roller 161, a coaming 17 and a cover plate 18.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.

It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1-5, a liquid-cooled battery box can be inserted into a battery cluster frame, the liquid-cooled battery box comprises a housing 1, the housing 1 comprises a bottom plate and a surrounding plate 17 arranged on the bottom plate, a storage cavity with an open top is formed between the bottom plate and the surrounding plate 17, a plurality of battery modules are stored in the storage cavity, and a cover plate 18 capable of opening and closing relative to the bottom plate and the storage cavity is arranged on the surrounding plate 17 in a covering manner. The bottom plate of the shell 1 and the surrounding plate 17 are assembled by welding, and the surrounding plate 17 and the cover plate 18 are assembled and fixed by screws. The base plate is a liquid-cooled base plate 14. A liquid cooling flow channel is reserved in the liquid cooling bottom plate 14, and a plurality of cooling liquid joints 141 connected with the liquid cooling flow channel are arranged on the liquid cooling bottom plate 14, namely, a water inlet and a water outlet which are positioned at the outer side of the enclosing plate 17 are arranged on the liquid cooling bottom plate 14, and the cooling liquid joints 141 connected with the liquid cooling flow channel are respectively arranged on the water inlet and the water outlet. The water inlet and the water outlet are arranged externally, and no liquid cooling pipeline exists in the liquid cooling battery box, so that risks such as liquid cooling permeation are effectively avoided. Simultaneously, the holistic intensity of liquid cooling bottom plate 14 has also been strengthened in the design of integration, can effectively reduce the bottom half and warp, guarantees the laminating degree before battery module and the liquid cooling bottom plate 14, has also guaranteed the radiating effect simultaneously.

Specifically, as shown in fig. 1, 2, and 5, the periphery of the shroud 17 is further provided with a reinforcing fin 11. A pair of guide tube holes 12 which are oppositely arranged are arranged on two sides of the outer part of the enclosing plate 17, screw rods 2 used for assembling and locking the tail part of the shell 1 with an external structure are arranged in the guide tube holes 12 in a penetrating manner, one end, connected into the battery cluster frame, of the shell 1 of the liquid-cooled battery box is an installation side, and one side, close to the outer side face of the battery cluster frame, of the shell 1 is a display side; the guide tube hole 12 is formed through the outer side surface of the shroud 17 between the display side and the mounting side; and the depth of the housing 1 between the display side and the mounting side is D, the depth L of the guide tube hole 12 being greater than two thirds of D. And the length of the screw rod 2 is greater than the depth L of the guide pipe hole 12 and is less than or equal to or slightly greater than the depth D of the shell 1. A limiting support block 13 is arranged on the shell 1; one end of the limiting support block 13 is connected with the coaming 17, and the other end of the limiting support block 13 extends outwards and corresponds to the guide pipe hole 12; a limit gap for limiting the big end of the screw rod 2 is reserved between the limit supporting block 13 and the inlet hole end of the guide pipe hole 12. The limit supporting block 13 is further provided with a limit groove 131. The limiting recess 131 is aligned with the tube hole of the guide tube hole 12. Firstly, a guide pipe hole 12 with a long strip structure and a screw 2 matched with the guide pipe hole 12 are arranged; after the liquid cooling battery box of being convenient for can insert battery cluster frame, be convenient for through tools such as bottle opener directly support the big tip of screw rod 2, connect screw rod 2 and the inside nut of predetermineeing of battery cluster frame soon, assemble the location. The stability of liquid cooling battery box and the equipment of battery cluster frame has been promoted, mechanical oscillation because of the process of outside transport causes is reduced to cause the damage of the interior electronic components of liquid cooling battery box, influence the performance and the life of liquid cooling battery box. In addition, the limiting supporting block 13 is arranged, on one hand, through a limiting gap reserved between the limiting supporting block 13 and the hole-entering end of the guide pipe hole 12, the screw 2 is convenient to pre-penetrate through the guide pipe hole 12 and then limit the position of the screw 2, and the screw 2 is prevented from slipping from the guide pipe hole 12 in the transportation process before the liquid-cooled battery box is assembled. The limiting groove 131 arranged on the limiting supporting block 13 is used for providing a supporting and limiting effect for a screwing tool in the screwing process of the screw rod 2.

As shown in fig. 1 to 5, a plurality of reinforcing beams 15 are provided at intervals across the bottom of the shell 1. The plurality of reinforcing beams 15 are arranged in parallel with each other. The two ends of the reinforcing beam 15 are respectively provided with a mounting block 16 at the position exceeding the coaming 17, the mounting block 16 is pivotally connected with a bearing roller 161, the two ends of the reinforcing beam 15 are also provided with a through groove 151 which is longitudinally penetrated, and the lower part of the bearing roller 161 at least partially penetrates through the lower port of the through groove 151. The reinforcing beam 15 adopts a bow-shaped beam structure; however, the present invention is not limited thereto, and in other embodiments, the reinforcing beam 15 may also adopt other structures according to actual use requirements, such as a channel steel.

Example two

As shown in fig. 1 to 6, on the basis of the first embodiment, as shown in fig. 6, the liquid-cooled bottom plate 14 is an extruded profile; a liquid cooling runner is prefabricated in the extruded section. Liquid cooling bottom plate 14 can be based on the size length of battery module according to the production demand of reality, goes to cut the extruded section bar, has promoted the adaptability of production. And the extruded section bar is used as a liquid cooling carrier, and has good structural stability on the basis of improving the cooling performance, so that the bottom plate structure can be directly used as a part of the shell 1.

The utility model discloses the theory of operation:

as shown in fig. 1 to 6, when the liquid-cooled battery box is assembled, the liquid-cooled bottom plate 14 is assembled with the plurality of reinforcing beams 15 by screws, and the apron 17 is assembled and limited on the reinforcing beams 15 and the liquid-cooled bottom plate 14 by the mounting blocks 16 and the screws provided on the reinforcing beams 15. The middle open-topped chamber of accomodating that forms of liquid cooling bottom plate 14 and bounding wall 17, accomodate the intracavity and accomodate a plurality of battery module, apron 18 passes through screw spare and 17 equipment of bounding wall. The enclosing plate 17 is firstly provided with the screw 2 which penetrates through the guide tube hole 12, then the limiting support block 13 is arranged on the front end display side of the enclosing plate 17, the limiting groove 131 of the limiting support block 13 corresponds to the guide tube hole 12, and the size of the groove of the limiting groove 131 is smaller than the outer diameter of the large end part of the screw 2. The liquid cooling is realized by connecting the cooling liquid joint 141 of the liquid cooling bottom plate 14 with a cooling liquid pipeline arranged outside to realize the passage of the cooling liquid.

When the assembled liquid-cooled battery box pair is connected to the layer frame of the battery cluster frame, the smoothness of pushing is improved through the bearing idler wheels 161 at the bottom of the shell 1, and the liquid-cooled battery box pair is pushed in place. The screw rod 2 is screwed through a tool, so that the screwing end of the screw rod 2 is screwed and matched with a nut preset in the battery cluster frame. Furthermore, a guider with a funnel structure can be prefabricated on the nut of the battery cluster frame, and the flaring at the outer side realizes guiding alignment on the screwing end of the screw rod 2.

Above concrete implementation is right the utility model provides a scheme thought concrete support, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change or equivalent change of equivalence that do on this technical scheme basis all still belong to the utility model discloses technical scheme's scope of protection.

Claims

1. The utility model provides a liquid cooling battery box, is including casing (1) that is used for accomodating a plurality of battery module, casing (1) includes the bottom plate and sets up bounding wall (17) on the bottom plate, it can be relative to be provided with on bounding wall (17) apron (18) that bottom plate or bounding wall (17) opened and shut, its characterized in that: the outer side of the enclosing plate (17) is provided with guide tube holes (12) which are oppositely arranged, screw rods (2) used for assembling and locking the shell (1) and an external structure are arranged in the guide tube holes (12) in a penetrating mode, and the liquid cooling bottom plate (14) is adopted by the bottom plate.

2. The liquid-cooled battery box of claim 1, wherein: a liquid cooling flow passage is reserved in the liquid cooling bottom plate (14); and a water inlet and a water outlet which are positioned at the outer side of the enclosing plate (17) are arranged on the liquid cooling bottom plate (14), and a cooling liquid joint (141) connected with the liquid cooling flow channel is respectively arranged on the water inlet and the water outlet.

3. The liquid-cooled battery box of claim 2, wherein: the bottom of the shell (1) is provided with a plurality of reinforcing beams (15) which are arranged in a crossing way.

4. A liquid-cooled battery box as claimed in claim 3, wherein: and two ends of the reinforcing beam (15) are respectively and pivotally connected with a plurality of bearing rollers (161).

5. The liquid-cooled battery box of claim 4, wherein: the reinforcing beam (15) is provided with an installation block (16), the installation block (16) is pivotally connected with a bearing roller (161), both ends of the reinforcing beam (15) are also provided with a through groove (151) which is longitudinally communicated, and at least part of the lower part of the bearing roller (161) movably penetrates through the lower port of the through groove (151).

6. The liquid-cooled battery box of claim 5, wherein: the liquid-cooled battery box can be inserted into the battery cluster frame, one end of the liquid-cooled battery box, which is butted into the battery cluster frame, is a mounting side, and one side, which is close to the outer side surface of the battery cluster frame, is a display side; the guide pipe hole (12) is arranged on the outer side surface of the enclosing plate (17) between the display side and the mounting side in a penetrating mode; and the depth of the shell (1) is between the display side and the installation side, the depth is D, and the depth L of the guide pipe hole (12) is more than two thirds of D.

7. The liquid-cooled battery box of claim 6, wherein: a limit supporting block (13) is arranged on the shell (1); one end of the limiting support block (13) is connected with the coaming (17), and the other end of the limiting support block (13) extends outwards and corresponds to the guide pipe hole (12); and a limiting gap for limiting the large end of the screw (2) is reserved between the limiting supporting block (13) and the inlet hole end of the guide pipe hole (12).

8. The liquid-cooled battery box of claim 7, wherein: and the limiting supporting block (13) is also provided with a limiting groove (131).

9. The liquid-cooled battery box of claim 8, wherein: the liquid cooling bottom plate (14) adopts an extruded section; and a liquid cold runner is prefabricated in the extruded section.

10. A liquid-cooled battery box as claimed in claim 3, wherein: the stiffening beam (15) adopts a channel steel structure or an arched beam structure; or/and the periphery of the enclosing plate (17) is also provided with a reinforcing fin (11).