CN215600434U

CN215600434U - Heat sink with active heat sink fin stack structure

Info

Publication number: CN215600434U
Application number: CN202120641007.7U
Authority: CN
Inventors: 傅世泽; 陈建宇
Original assignee: Taipu Power New Energy Changshu Co ltd
Current assignee: Taipu Power New Energy Changshu Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-01-21
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a heat radiating fin with an active heat radiating fin stack structure, which comprises a separating fin body, a guide fin, a heat radiating area A, a heat radiating area B, a high-temperature overheating area, a main heat radiating fin, an inner conductive heat radiating fin and an outer conductive heat radiating fin, wherein the main heat radiating fin is fixedly arranged on one side of the bottom of the high-temperature overheating area. The guide plate is provided with an inner conductive heat radiation fin and an outer conductive heat radiation fin, the conductive heat radiation fin can be reversely folded, the conductive heat radiation fin is flatly attached to the local high-temperature position of the original guide plate to increase the width or the thickness of the section of a current flowing through a path, the impedance is reduced to reduce the self-heating of the guide plate, meanwhile, the heat radiation rate of the guide plate is improved and the local heat capacity is increased to absorb heat due to the increase of the local section area and the thickness of the guide plate, so that the high-temperature overheating is avoided, and the conductive heat radiation fin and the guide plate are integrally formed, so the electric conduction and the heat conduction are good, the manufacturing process can be simplified, and the cost can be reduced.

Description

Heat sink with active heat sink fin stack structure

Technical Field

The utility model relates to a radiating fin, in particular to a radiating fin with an active radiating fin stack structure, belonging to the technical field of heat dissipation.

Background

With the increasing demand of high power of the system, the current value carried by the battery module is also increased, the traditional cylindrical lithium battery module uses the guide sheet to be welded on the positive and negative end surfaces of the battery core in a spot welding manner, and because the current borne by the battery core in the spot welding process is limited, the guide sheet can only use a nickel sheet with the thickness of 0.2mm, the current value carried by the battery module is not high, and high temperature is easy to generate.

Existing solutions generally fall into three categories:

1. additional heat dissipation designs such as heat conducting plates are used, but not only are limited in effectiveness and high in cost.

2. Additional conductive designs such as soldering circuit boards or riveting highly conductive materials are used, but not only are the processes cumbersome and costly.

3. The design of using high conductive material to match with different splitter boxes improves effective shunting of spot welding, and not only has limited effect, but also reduces the current guiding space of the guide plate.

Therefore, how to increase the current value that can be carried by the battery module lead, and to simplify the manufacturing process and reduce the cost is a problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a heat sink with an active heat sink fin stack structure to solve the above-mentioned problems of the prior art, such as the use of additional heat dissipation design, e.g., heat conductive plate, but with limited effectiveness and high cost; additional conductive designs such as soldering circuit boards or riveting highly conductive materials are used, but not only the process is tedious and the cost is high; the design of using high conductive material to match with different splitter boxes to improve effective shunting of spot welding has limited effect and reduces the current guiding space of the guide plate.

In order to achieve the purpose, the utility model provides the following technical scheme: the heat radiating fin with the active heat radiating fin stack structure comprises a separating fin body, a guide fin, a heat radiating area A, a heat radiating area B, a high-temperature overheating area, a main heat radiating fin, an inner conductive heat radiating fin and an outer conductive heat radiating fin, wherein the separating fin body consists of the guide fin, the heat radiating area A, the heat radiating area B, the high-temperature overheating area, the main heat radiating fin, the inner conductive heat radiating fin and the outer conductive heat radiating fin, the heat radiating area A is arranged at one end of the guide fin, the heat radiating area B is arranged at the other end of the guide fin, the high-temperature overheating area is fixedly connected to one side of the heat radiating area B, and the heat radiating area A is arranged at the other end of the guide fin

As a preferable technical scheme of the utility model, the middle part of the guide sheet is provided with a first positioning hole penetrating through the guide sheet, and the position of the guide sheet close to the high-temperature overheating area is provided with a second positioning hole penetrating through the guide sheet.

As a preferred technical scheme of the present invention, the separator body is fixedly connected to the end cap on the side surface of the battery housing group through a first positioning hole and a second positioning hole formed in the guide plate.

One side of the bottom of the high-temperature overheating area is fixedly provided with a main radiating fin.

As a preferred technical scheme of the utility model, the side surface of the high-temperature overheating area is movably connected with an outer conductive radiating fin, and the top of the outer conductive radiating fin is movably provided with an inner conductive radiating fin.

As a preferable technical solution of the present invention, the surface of the heat dissipation area a and the surface of the heat dissipation area B are both provided with heat dissipation bar-shaped grooves.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has heat sink of the stack structure of the active heat dissipating fin, there are inner conductive heat dissipating fin and outer conductive heat dissipating fin on the guide vane, can turn over the conductive heat dissipating fin, make the conductive heat dissipating fin paste the local high-temperature place of the original guide vane flatly, in order to increase the current and flow through the cross-sectional width or thickness of the route, make the impedance reduce in order to reduce the self-heating of the guide vane, because increase the local sectional area and thickness of the guide vane at the same time, make the heat-dissipating rate of the guide vane raise and increase the local heat capacity in order to absorb heat, avoid producing the high-temperature overheat, because the conductive heat dissipating fin and guide vane are integrated into one piece, therefore it is good to conduct electricity and thermal conductivity, and can simplify the process and lower costs.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the folded inner conductive heat dissipating fins and outer conductive heat dissipating fins of the separator body according to the present invention.

In the figure: 1. a separator body; 2. a guide plate; 3. a heat dissipation area A; 4. a heat dissipation area B; 5. a high temperature superheat zone; 6. a primary heat sink sheet; 7. inner conductive heat dissipation fins; 8. an outer conductive heat sink fin; 9. a first positioning hole; 10. a second positioning hole; 11. a heat dissipation strip-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a heat sink with an active heat sink fin stack structure, comprising: the heat radiating fin with the active heat radiating fin stack structure comprises a separating fin body 1, a guide fin 2, a heat radiating area A3, a heat radiating area B4, a high-temperature overheating area 5, a main heat radiating fin 6, an inner conductive heat radiating fin 7 and an outer conductive heat radiating fin 8, and is characterized in that the separating fin body 1 consists of the guide fin 2, the heat radiating area A3, the heat radiating area B4, the high-temperature overheating area 5, the main heat radiating fin 6, the inner conductive heat radiating fin 7 and the outer conductive heat radiating fin 8, one end of the guide fin 2 is provided with the heat radiating area A3, the other end of the guide fin 2 is provided with the heat radiating area B4, one side of the heat radiating area B4 is fixedly connected with the high-temperature overheating area 5, and one side of the bottom of the high-temperature overheating area 5 is fixedly provided with the main heat radiating fin 6.

The side surface of the high-temperature overheating area 5 is movably connected with an outer conductive radiating fin 8, and the top of the outer conductive radiating fin 8 is movably provided with an inner conductive radiating fin 7.

The surface of the heat dissipation area A3 and the surface of the heat dissipation area B4 are both provided with heat dissipation strip-shaped grooves 11.

The middle part of guide vane 2 is equipped with first locating hole 9 that runs through guide vane 2, and the position department that guide vane 2 is close to high temperature superheat region 5 is equipped with the second locating hole 10 that runs through guide vane 2.

The separator body 1 is fixedly connected with the end cover on the side surface of the battery shell group through a first positioning hole 9 and a second positioning hole 10 which are arranged on the guide sheet 2.

When the heat sink is used, the heat sink with the active heat dissipation fin stack structure is provided, the guide plate 2 is provided with the inner conductive heat dissipation fin 7 and the outer conductive heat dissipation fin 8, and the inner conductive heat dissipation fin 7 and the outer conductive heat dissipation fin 8 are designed in a stacked manner, so that the conductive heat dissipation fin can be folded back to be flatly attached to the high-temperature overheating area 5, the width or the thickness of the cross section of a current flowing through a path is increased, the impedance is reduced, the self-heating of the guide plate is reduced, meanwhile, the local sectional area and the thickness of the guide plate are increased, the heat dissipation rate of the guide plate is improved, the local heat capacity is increased, the high-temperature overheating is avoided, and the conductive heat dissipation fin and the guide plate are integrally formed, so the heat conduction and the heat conduction rate are good, the manufacturing process is simplified, and the cost is reduced.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The heat sink with the active heat dissipation fin stack structure comprises a separating fin body (1), a guide fin (2), a heat dissipation area A (3), a heat dissipation area B (4), a high-temperature overheating area (5), a main heat dissipation fin (6), an inner conductive heat dissipation fin (7) and an outer conductive heat dissipation fin (8), it is characterized in that the separation sheet body (1) consists of a guide sheet (2), a heat dissipation area A (3), a heat dissipation area B (4), a high-temperature overheating area (5), a main heat dissipation sheet (6), inner conductive heat dissipation fins (7) and outer conductive heat dissipation fins (8), one end of the guide vane (2) is provided with a heat dissipation area A (3), the other end of the guide vane (2) is provided with a heat dissipation area B (4), one side of the heat dissipation area B (4) is fixedly connected with a high-temperature overheating area (5), and a main radiating fin (6) is fixedly arranged on one side of the bottom of the high-temperature overheating area (5).

2. A heat sink with an active heat fin stack structure as claimed in claim 1, wherein: the middle part of the guide sheet (2) is provided with a first positioning hole (9) penetrating through the guide sheet (2), and the position of the guide sheet (2) close to the high-temperature overheating area (5) is provided with a second positioning hole (10) penetrating through the guide sheet (2).

3. A heat sink with active heat fin stack structure according to claim 2, wherein: the separator body (1) is fixedly connected with the end cover on the side surface of the battery shell group through a first positioning hole (9) and a second positioning hole (10) which are formed in the guide sheet (2).

4. A heat sink with an active heat fin stack structure as claimed in claim 1, wherein: the side surface of the high-temperature overheating area (5) is movably connected with an outer conductive radiating fin (8), and the top of the outer conductive radiating fin (8) is movably provided with an inner conductive radiating fin (7).

5. A heat sink with an active heat fin stack structure as claimed in claim 1, wherein: and the surfaces of the heat dissipation areas A (3) and B (4) are provided with heat dissipation strip-shaped grooves (11).