CN217134493U - Low-temperature heating battery pack - Google Patents

Abstract

The utility model relates to the technical field of battery packs, in particular to a low-temperature heating battery pack, which comprises a shell, a temperature acquisition board, an MCU control board, a heating board, a battery pack and a power line, wherein the temperature acquisition board, the MCU control board, the heating board and the battery pack are all arranged in the shell, a wire outlet is arranged on the shell, and one end of the power line enters the shell along the wire outlet; the temperature acquisition plate is attached to the battery pack, and the temperature acquisition plate, the heating plate, the battery pack and the power line are all electrically connected with the MCU control panel; the temperature acquisition board is arranged in the shell to acquire the temperature of the battery pack, then the temperature acquisition board is used for controlling the work of the heating board, the MCU control board is adopted to realize the control of the circuit part, the circuit successfully solves the limiting characteristic that the battery cell can only be charged at 0-45 ℃, and the battery pack can normally work even if the ambient temperature is lower than 0 ℃ for a long time.

Description

Low-temperature heating battery pack

Technical Field

The utility model belongs to the technical field of the group battery technique and specifically relates to a low temperature heating's group battery is related to.

Background

With the development of economy and technology, the nation has higher requirements on environmental protection. As a new clean energy source, the lithium battery has the advantages of stable discharge voltage, wide working temperature range, low self-discharge rate, long storage life, no memory effect, small volume, light weight, no public hazard and the like, so the lithium battery gradually replaces a lead-acid battery and a cadmium-nickel battery to become the mainstream of a power battery at present and is widely applied to various fields;

in order to improve the power supply voltage, people utilize a lithium battery, a plurality of battery cells are connected in series to form a battery pack, and a protective shell is arranged outside the battery pack for protection, but the conventional charging temperature of the battery cells is 0-45 ℃ at present, and the battery cells cannot be normally charged when the temperature is lower than 0 ℃, so that the battery cells cannot be used for a long time in some environments with the temperature lower than 0 ℃, and an improved technical scheme is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A low-temperature heating battery pack comprises a shell, a temperature acquisition plate, an MCU control plate, a heating plate, a battery pack and a power line, wherein the temperature acquisition plate, the MCU control plate, the heating plate and the battery pack are all arranged in the shell; the temperature acquisition board is attached to the battery pack, and the temperature acquisition board, the heating plate, the battery pack and the power line are all electrically connected with the MCU control panel.

Preferably, the outside of group battery is provided with the heat conduction shell, and the upper end of heat conduction shell is the open structure setting, and the temperature acquisition board is attached in the inboard of heat conduction shell to the temperature acquisition board is located between group battery and the hot plate.

Preferably, a plurality of supporting blocks are uniformly distributed around the inner bottom of the outer shell, and the heat conduction shell and the heating plate are supported by the supporting blocks to form a space with the inner bottom of the outer shell.

Preferably, a partition plate is arranged at the inner bottom of the shell, and the heat conduction shell and the heating plate are separated by the partition plate, so that the heat conduction shell and the heating plate are in interval fit.

Preferably, a temperature peak switch is arranged on the heating plate in series and is electrically connected with the MCU control board.

Preferably, the shell comprises a shell body and an upper cover fixedly covered at the upper end of the shell body, a sealing rubber ring is arranged between the shell body and the upper cover, the shell body and the upper cover are sealed and covered through the sealing rubber ring, the wire outlet is arranged at the lower end of the shell body, and sealing glue is packaged on the wire outlet to enable the power line to be in sealing fit with the wire outlet.

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

the temperature acquisition board is arranged in the shell to acquire the temperature of the battery pack, then the temperature acquisition board is used for controlling the work of the heating board, the MCU control board is adopted to realize the control of the circuit part, and the circuit successfully solves the limiting characteristic that the battery cell can only be charged at 0-45 ℃, so that the battery pack can normally work even if the ambient temperature is lower than 0 ℃ for a long time;

in order to improve the heat conduction capability and enable the temperature collection plate to collect the temperature of the battery pack more accurately, a heat conduction shell is arranged outside the battery pack; through this design, on the heat conduction shell can be conducted to the heat of messenger's group battery, carry out even diffusion to the temperature, improved the precision that the temperature acquisition board was gathered to group battery temperature, in addition, because the setting of heat conduction shell, when the hot plate heats, can give the group battery through heat conduction shell with the temperature fast transmission to can carry out evenly distributed with the temperature, reach the effect of quick adaptation environment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic structural view of the present invention with the housing and the power cord removed;

fig. 4 is a schematic structural diagram of the housing of the present invention.

The reference numerals and names in the figures are as follows:

the temperature control device comprises ashell 10, atemperature acquisition board 20, anMCU control board 30, aheating board 40, abattery pack 50, apower line 60, anoutlet 11, asupport block 12, apartition plate 13, ashell 14, anupper cover 15, a sealingrubber ring 16, a temperature peak switch 41 and aheat conduction shell 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a low-temperature heating battery module includes ahousing 10, atemperature acquisition board 20, anMCU control board 30, aheating board 40, abattery pack 50, and apower line 60, where thetemperature acquisition board 20, theMCU control board 30, theheating board 40, and thebattery pack 50 are all disposed in thehousing 10, awire outlet 11 is disposed on thehousing 10, and one end of thepower line 60 enters thehousing 10 along thewire outlet 11; thetemperature collecting plate 20 is attached to thebattery pack 50, and thetemperature collecting plate 20, theheating plate 40, thebattery pack 50 and thepower line 60 are electrically connected to theMCU control board 30.

In the above technical means, by providing ahousing 10, thebattery pack 50 is disposed inside thehousing 10, so that the product can be used in outdoor environment, the temperature of thebattery pack 50 is collected by disposing thetemperature collecting plate 20 in thehousing 10, thetemperature collecting plate 20 is made of a thermosensitive material, and then the operation of theheating plate 40 is controlled by thetemperature collecting plate 20, and theMCU control board 30 is used to control the circuit part, and the specific circuit control is as follows: when the temperature of the battery core in thebattery pack 50 is acquired by theMCU control board 30 through thetemperature acquisition board 20 and is lower than-5 ℃, the charging is forbidden, and when the temperature is higher than 5 ℃, the charging is started; in addition, when charging is forbidden and the temperature of the battery core is lower than 0 ℃, the current of theMCU control board 30 is output to theheating board 40, theheating board 40 starts heating, and theheating board 40 drives the battery core to heat and raise the temperature together. When the temperature of the battery cell rises to 5 ℃ as collected by thetemperature collecting board 20, theMCU control board 30 starts charging, so that thebattery pack 50 can be normally charged; theMCU control board 30 controls thebattery pack 50 to be heated to 8 ℃ at most, and then theheating plate 40 is closed to work; by the technical means, the circuit successfully solves the limitation that the battery cell can only be charged at 0-45 ℃, so that thebattery pack 50 can normally work even if the ambient temperature is lower than 0 ℃ for a long time.

As further shown in fig. 2-3, in order to improve the heat conduction capability and enable thetemperature collection plate 20 to collect the temperature of thebattery pack 50 more accurately, aheat conduction shell 51 is disposed outside thebattery pack 50, the upper end of theheat conduction shell 51 is disposed in an open structure, thetemperature collection plate 20 is attached to the inner side of theheat conduction shell 51, and thetemperature collection plate 20 is located between thebattery pack 50 and theheating plate 40; through this design, on theheat conduction shell 51 can be conducted to the heat of messenger'sgroup battery 50, carry out even diffusion to the temperature, improved the precision thattemperature acquisition board 20 was gathered togroup battery 50 temperature, in addition, because the setting ofheat conduction shell 51, whenhot plate 40 heats, can givegroup battery 50 with the temperature fast transmission throughheat conduction shell 51 to can carry out evenly distributed with the temperature, reach the effect of quick adaptation environment.

As shown in fig. 4, in order to prevent the battery module from being cooled too fast in a low temperature environment and to keep the temperature of the battery module warm, a plurality of uniformly distributed supportingblocks 12 are disposed around the inner bottom of thehousing 10, and theheat conducting shell 51 and theheating plate 40 are supported by the supportingblocks 12 to have a distance from the inner bottom of thehousing 10, so that theinternal battery pack 50 can be spaced apart from thehousing 10, the contact surface between thehousing 10 and thebattery pack 50 is reduced, and the heat transfer efficiency of thehousing 10 is reduced.

Further, as shown in fig. 4, in order to prevent thebattery pack 50 from being affected by the excessively rapid temperature rise of theheating plate 40, apartition plate 13 is provided at the inner bottom of thehousing 10, the heatconductive case 51 and theheating plate 40 are partitioned by thepartition plate 13, and the heatconductive case 51 and theheating plate 40 are fitted with a space therebetween, and in order to prevent the temperature rise of theheating plate 40, a temperature peak switch 41 is provided in series on theheating plate 40, and the temperature peak switch 41 is electrically connected to theMCU control board 30.

As further shown in fig. 2, in order to adapt to an outdoor environment, thehousing 10 is hermetically disposed, specifically, thehousing 10 is disposed as ahousing 14 and anupper cover 15 that is fixedly covered on an upper end of thehousing 14, a sealingrubber ring 16 is disposed between thehousing 14 and theupper cover 15, thehousing 14 and theupper cover 15 are hermetically covered by the sealingrubber ring 16, theoutlet 11 is disposed on a lower end of thehousing 14, and a sealant is sealed on theoutlet 11, so that thepower line 60 is hermetically matched with theoutlet 11.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

1. A low-temperature heating battery pack is characterized by comprising a shell, a temperature acquisition plate, an MCU control plate, a heating plate, a battery pack and a power line, wherein the temperature acquisition plate, the MCU control plate, the heating plate and the battery pack are all arranged in the shell; the temperature acquisition board is attached to the battery pack, and the temperature acquisition board, the heating plate, the battery pack and the power line are all electrically connected with the MCU control panel.

2. The low-temperature heating battery pack as claimed in claim 1, wherein a heat conductive case is provided at an outer portion of the battery pack, an upper end of the heat conductive case is provided in an open structure, the temperature collecting plate is attached to an inner side of the heat conductive case, and the temperature collecting plate is located between the battery pack and the heating plate.

3. A low-temperature-heated battery pack according to claim 2, wherein a plurality of support blocks are uniformly distributed around the inner bottom of the case, and the heat-conductive case and the heating plate are supported by the support blocks to have a distance from the inner bottom of the case.

4. A low-temperature-heated battery pack according to claim 2, wherein a partition is provided at the inner bottom of the housing, and the heat-conducting case and the heating plate are separated by the partition so that the heat-conducting case and the heating plate are spaced apart from each other.

5. A low temperature heating battery pack according to claim 1, wherein a temperature peak switch is connected in series on the heating plate, and the temperature peak switch is electrically connected with the MCU control board.

6. A cryogenic battery according to any of claims 1 to 5, wherein the housing comprises a casing and an upper cover fixedly attached to the upper end of the casing, a sealing rubber ring is provided between the casing and the upper cover, the casing and the upper cover are sealingly attached by the sealing rubber ring, the outlet is provided at the lower end of the casing, and a sealant is encapsulated in the outlet to sealingly engage the power cord with the outlet.

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