CN212366059U

CN212366059U - Auxiliary heat dissipation device for lithium battery

Info

Publication number: CN212366059U
Application number: CN202021097898.6U
Authority: CN
Inventors: 刘义
Original assignee: Kunshan Zhongjun New Energy Technology Co ltd
Current assignee: Kunshan Zhongjun New Energy Technology Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-01-15
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses an auxiliary heat abstractor for lithium cell relates to lithium cell heat dissipation technical field, has solved the inconvenient problem of installing of heat abstractor among the prior art, and its technical essential is: the heat-conducting bottom plate is provided with a plurality of groups of heat-radiating plates for increasing the heat-radiating area of the heat-conducting bottom plate, the heat-radiating plates are distributed around the perpendicular bisector of the heat-conducting bottom plate in a divergent manner and are arranged vertically to the heat-conducting bottom plate, the middle of the heat-conducting bottom plate is also provided with a roller fan for driving air to flow from the edge of the heat-conducting bottom plate to the center of the heat-conducting bottom plate, one end of the heat-radiating plate, far away from the heat-conducting bottom plate, is also provided with an upper cover plate, the upper cover plate is provided with a heat-radiating motor for driving the roller fan to rotate; the utility model discloses be convenient for install, the radiating effect is good.

Description

Auxiliary heat dissipation device for lithium battery

Technical Field

The utility model relates to a lithium cell heat dissipation technical field especially relates to an auxiliary heat abstractor for lithium cell.

Background

The lithium battery has a heating phenomenon in the use process, and the lithium battery needs to be radiated in the use process of the lithium battery in order to keep the working performance of the lithium battery.

Chinese patent publication No. CN208368692U discloses a box-type lithium battery heat dissipation device, which includes a cold water circulation pipeline, heat dissipation fins, a plastic outer frame, a water reservoir and a water pump, wherein louver curtains are installed on four side vertical surfaces of the plastic outer frame, a lithium battery is installed in the middle position inside the plastic outer frame, the heat dissipation fins are sleeved outside the lithium battery, heat-conducting silica gel is smeared between the lithium battery and the heat dissipation fins, and the cold water circulation pipeline is uniformly installed in the middle of the heat dissipation fins; the device gives out the heat of lithium cell through the fin through setting up large tracts of land fin, implant cold water circulating line simultaneously in the middle of the fin, can be when external high temperature, take away the temperature on the fin through endless cold water, the effectual temperature that reduces the lithium cell, and do not receive the external environment influence, when the temperature is not very high, the heat dissipation that utilizes the fin is enough to reach heat dissipation function, adopt a low-power water pump to reach circulation function when the temperature is too high, the consumption of the energy has been reduced. The device is used for radiating the lithium battery through the radiating fins and the water circulation device, the cooling pipe in the device needs to be installed on the surface of the lithium battery, and the installation of the cooling pipeline has the problem of inconvenience in installation, so that the auxiliary radiating device for the lithium battery is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to above-mentioned defect, a supplementary heat abstractor for lithium cell is provided, including the heat conduction bottom plate, be equipped with the heat radiating area's of increase heat conduction bottom plate heating panel on the heat conduction bottom plate, the heating panel is equipped with the multiunit, and the heating panel is the perpendicular bisector equipartition that disperses to form around the heat conduction bottom plate, the heating panel sets up with the heat conduction bottom plate is perpendicular, the centre of heat conduction bottom plate still is equipped with the cylinder fan who is used for driving the air from the center of heat conduction bottom plate edge flow direction heat conduction bottom plate, the heating panel still is equipped with the upper cover plate in the one end of keeping away from the heat conduction bottom plate, be equipped with the second ventilation hole on the upper cover plate, in order to solve the inconvenient problem of installing of.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an auxiliary heat abstractor for lithium cell, including the heat conduction bottom plate, be equipped with the heating panel of the heat radiating area of increase heat conduction bottom plate on the heat conduction bottom plate, the heating panel is the many groups, and the heating panel is the perpendicular bisector equipartition that disperses to form around the heat conduction bottom plate, the heating panel sets up with the heat conduction bottom plate is perpendicular, the centre of heat conduction bottom plate still is equipped with the cylinder fan who is used for driving the air from the center of heat conduction bottom plate edge flow direction heat conduction bottom plate, the heating panel still is equipped with the upper cover plate in the one end of keeping away from the heat conduction bottom plate, be equipped with on the upper cover plate and be used for driving cylinder fan pivoted.

As a further proposal of the utility model, the heat conduction bottom plate is a copper plate; the heat dissipation plate is made of aluminum plate.

As a further scheme of the utility model, the centre of upper cover plate is equipped with the motor shaft hole, and first ventilation hole passes motor shaft hole fixed connection to drum fan around the axis equipartition in motor shaft hole, the output shaft of heat dissipation motor.

As a further aspect of the utility model, drum fan's both ends are equipped with circular baffle, and the circular baffle edge is equipped with the flabellum around the perpendicular bisector equipartition in the baffle, and the second ventilation hole is established and is close to the one end of upper cover plate on drum fan.

As a further scheme of the utility model, the one side of heat conduction bottom plate keeping away from the heating panel still is equipped with the silicone grease gasket, and the one side of heat conduction bottom plate and the contact of silicone grease gasket is the smooth surface.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

the utility model discloses a circulation of air on heat dissipation motor drive cylinder fan surface with higher speed has strengthened the heat dissipation of lithium cell, for prior art, the utility model discloses be convenient for install, the radiating effect is good.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary heat dissipation device for a lithium battery.

Fig. 2 is a schematic view of an internal structure of an auxiliary heat dissipation device for a lithium battery.

Fig. 3 is a right side view of an auxiliary heat sink for a lithium battery.

Fig. 4 is a schematic structural view of an upper cover plate in an auxiliary heat sink for a lithium battery.

Fig. 5 is a schematic structural view of a drum fan in an auxiliary heat dissipation device for a lithium battery.

Reference numerals: 1-heat conduction bottom plate, 2-upper cover plate, 21-first ventilation hole, 22-motor shaft hole, 3-heat dissipation plate, 4-roller fan, 41-second ventilation hole and 5-heat dissipation motor.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example 1

As shown in fig. 1 to 3, an auxiliary heat dissipation device for a lithium battery includes a heat conduction base plate 1, a heat dissipation plate 3 for increasing a heat dissipation area of the heat conduction base plate 1 is disposed on the heat conduction base plate 1, the heat dissipation plate 3 is provided with a plurality of groups, the heat dissipation plate 3 is distributed around a perpendicular bisector of the heat conduction base plate 1 in a divergent shape, the heat dissipation plate 3 is disposed perpendicular to the heat conduction base plate 1, a roller fan 4 for driving air to flow from an edge of the heat conduction base plate 1 to a center of the heat conduction base plate 1 is further disposed in the middle of the heat conduction base plate 1, an upper cover plate 2 is further disposed at one end of the heat dissipation plate 3 away from the heat conduction base plate 1, a heat dissipation motor 5 for driving the roller fan 4 to rotate is disposed on the upper cover plate 2, a;

the heat conduction bottom plate 1 is in a square plate shape, the heat conduction bottom plate 1 is fixedly connected to the surface of the lithium battery, in some examples, the heat conduction bottom plate 1 is fixedly connected to the surface of the lithium battery through screws or in an adhesive mode, the heat conduction bottom plate 1 is a copper plate, the heat conduction bottom plate 1 and the heat dissipation plate 3 are fixedly connected through welding, the heat dissipation plate 3 is an aluminum plate, and the heat dissipation plate 3 and the upper cover plate 2 are fixedly connected through an adhesive mode;

as shown in fig. 4, a motor shaft hole 22 is provided in the middle of the upper cover plate 2, the first ventilation holes 21 are uniformly distributed around the axis of the motor shaft hole 22, the heat dissipation motor 5 is fixedly connected to the upper cover plate 2 through screws, and the output shaft of the heat dissipation motor 5 passes through the motor shaft hole 22 and is fixedly connected to the drum fan 4;

as shown in fig. 5, circular baffles are arranged at two ends of the drum fan 4, fan blades evenly distributed around a perpendicular bisector of the baffles are arranged at edges of the circular baffles, and the second vent holes 41 are arranged at one end, close to the upper cover plate 2, of the drum fan 4, when the drum fan 4 rotates, the fan blades drive air around the drum fan 4 to flow into the drum fan 4, the internal pressure of the drum fan 4 is increased, so that the air in the drum fan 4 flows out from the second vent holes 41, and negative pressure is formed at the outer side of the drum fan 4, thereby driving the air between the heat dissipation plates 3 to flow to the drum fan 4;

preferably, one end of the drum fan 4 away from the heat dissipation motor 5 is fixedly connected to the heat conduction base plate 1 through a bearing.

Example 2

preferably, in this embodiment, a silicone grease gasket is further disposed on a surface of the heat conducting base plate 1 away from the heat dissipation plate 3, and a surface of the heat conducting base plate 1 in contact with the silicone grease gasket is subjected to a smoothing treatment, and because the silicone grease gasket has viscosity, the silicone grease gasket can be adsorbed on the heat conducting base plate 1;

other structures in this embodiment are the same as those in embodiment 1.

To sum up, the utility model discloses a theory of operation is:

with this device laminating on the lithium cell surface, the heat that the lithium cell gived off flows on heat conduction bottom plate 1 and heating panel 3, the heat radiating area of lithium cell has been increased, when heat dissipation motor 5 circular telegram, heat dissipation motor 5 drives drum fan 4 and rotates, when drum fan 4 rotates, the flabellum drives the inside of air flow to drum fan 4 around the drum fan 4, drum fan 4's internal pressure increase, make the air in the drum fan 4 flow from second vent hole 41, drum fan 4's the outside forms the negative pressure, thereby drive the air flow direction drum fan 4 between the heating panel 3, the air takes away the heat on heat dissipation plate 3 and the heat conduction bottom plate 1 when flowing on heating panel 3, thereby reach the radiating purpose of reinforcing.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An auxiliary heat dissipation device for a lithium battery comprises a heat conduction bottom plate (1), wherein heat dissipation plates (3) for increasing the heat dissipation area of the heat conduction bottom plate (1) are arranged on the heat conduction bottom plate (1), and are characterized in that a plurality of groups of heat dissipation plates (3) are arranged on the heat conduction bottom plate (1), the heat dissipation plates (3) are distributed around the perpendicular bisector of the heat conduction bottom plate (1) in a divergent manner, the heat dissipation plates (3) are perpendicular to the heat conduction bottom plate (1), a roller fan (4) for driving air to flow from the edge of the heat conduction bottom plate (1) to the center of the heat conduction bottom plate (1) is further arranged in the middle of the heat conduction bottom plate (1), an upper cover plate (2) is further arranged at one end of the heat dissipation plates (3) far away from the heat conduction bottom plate (1), a heat dissipation motor (5) for driving the roller fan (4) to rotate is, the upper cover plate (2) is provided with a first vent hole (21).

2. The auxiliary heat sink for a lithium battery as claimed in claim 1, wherein the heat conductive base plate (1) is a copper plate; the heat dissipation plate (3) is an aluminum plate.

3. The auxiliary heat sink for a lithium battery as claimed in claim 1, wherein a motor shaft hole (22) is provided in the middle of the upper cover plate (2), the first ventilation holes (21) are uniformly distributed around the axis of the motor shaft hole (22), and the output shaft of the heat dissipation motor (5) passes through the motor shaft hole (22) to be fixedly connected to the drum fan (4).

4. The auxiliary heat sink for lithium battery as claimed in claim 3, wherein the drum fan (4) is provided at both ends thereof with circular baffles, the edges of the circular baffles are provided with fan blades uniformly distributed around the perpendicular bisector of the baffles, and the second ventilation holes (41) are provided at the end of the drum fan (4) adjacent to the upper cover plate (2).

5. The auxiliary heat sink for lithium battery as claimed in any one of claims 1-4, wherein the heat conducting base plate (1) is further provided with a silicone gasket on the side away from the heat dissipating plate (3), and the side of the heat conducting base plate (1) contacting the silicone gasket is smooth.