WO2016197797A1

WO2016197797A1 - Battery module and base station provided with battery module

Info

Publication number: WO2016197797A1
Application number: PCT/CN2016/082342
Authority: WO
Inventors: 王爱红; 余文平; 张尧; 张文国; 徐宣宁
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-01-04
Filing date: 2016-05-17
Publication date: 2016-12-15
Also published as: CN106941137A

Abstract

Disclosed are a battery module and a base station provided with the battery module. The battery module comprises: a housing, a battery core set, a heat dissipation module and a heating module, a sealed accommodating cavity being formed within the housing, the battery core set being arranged within the accommodating cavity, the heat dissipation module being connected to the housing and the battery core set, the heating module being connected to the housing and being used for heating the accommodating cavity.

Description

Battery module and base station having the same

Technical field

This document relates to, but is not limited to, the field of communication device technology, and in particular to a battery module and a base station having the same.

Background technique

At present, the high-frequency application of the wireless communication equipment distribution system is the battery cabinet in the equipment room under the tower or the battery cabinet in the outdoor cabinet. The forced air cooling is adopted, and the noise is large.

However, in the construction of outdoor site computer rooms, there are cases where property problems such as land acquisition are difficult to coordinate and power supply expansion is difficult. There is a need for rapid construction in the suburbs. Some emerging operators, power supply and transmission leases, and leased facilities for the surface, hope that all equipment will be poled and put on the tower to avoid land acquisition and construction of machine rooms, and to realize small construction network investment and rapid network construction. To this end, a battery module with natural heat dissipation needs to be installed on the tower and used in conjunction with outdoor equipment.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

To this end, the embodiment of the invention provides a battery module, which is suitable for upper tower installation.

The embodiment of the invention further provides a base station including the battery module.

According to the battery module of the first aspect of the present invention, the battery module is adapted to be mounted on a communication tower of a base station, and includes: a casing, a battery core group, a heat dissipation module, and a heating module, wherein the casing is formed with a seal a receiving cavity; the battery core is disposed in the receiving cavity; the heat dissipation module is connected to the housing and the battery core; and the heating module is connected to the housing to heat the receiving Cavity.

The battery module according to the embodiment of the invention is heated by the heating module when the ambient temperature is low, and the heat of the battery core group is radiated to the outside of the casing through the heat dissipation module when the ambient temperature is high, thereby taking away the battery core. The heat of the group, therefore, by providing the heating module and the heat dissipation module, provides a good working environment for the battery core group, and reduces the environmental temperature requirements of the battery module.

In addition, the battery module according to the above embodiment of the present invention may further have the following additional technical features:

Optionally, the housing is a heat conductive housing, and the heat dissipation module comprises: a heat sink and a heat conductive medium. The heat sink is connected to an outer side surface of the casing and extends away from the casing, and the heat sink comprises a plurality of spaced apart portions; the heat conducting medium is disposed in the casing, the heat conduction The medium is respectively attached to the inner surface of the casing and the battery core group.

Optionally, the heat sink and the heat transfer medium are disposed on any one of the opposite side walls of the housing.

Optionally, the housing is an aluminum alloy housing, and an outer surface of the housing is disposed to be treated by an outdoor dusting process.

Optionally, the heating module is located in the receiving cavity and arranged around the battery core group.

Optionally, the heating module is screwed, snapped or bonded to the housing.

Optionally, the battery cell set includes: a plurality of cells and a controller. The plurality of cells are arranged in a plurality of cell groups connected in parallel with each other, and the cells in each cell group are connected in series; the controller is connected to the plurality of cells and arranged to control the plurality of cells The core is charged or discharged.

Optionally, the housing has a rectangular parallelepiped shape, and at least two side walls of the housing are provided with mounting positions.

Optionally, one end of the housing is provided with a handle and the other end is provided with a power interface and a communication interface connected to the battery core group.

Optionally, the housing includes a lower case, an upper case, a seal, and a fastener. The lower casing is in the shape of a box having an open upper end; the upper casing is sealed on the upper surface of the lower casing; the sealing member is disposed between an upper surface of the lower casing and the upper casing, and The seals are arranged along the circumference of the lower casing; the fasteners are respectively connected to the upper casing and the lower casing.

An embodiment of the second aspect of the present invention provides a base station,

A base station according to an embodiment of the second aspect of the present invention includes a communication tower and a battery module according to any of the foregoing embodiments of the present invention, wherein the battery module is mounted on the communication tower.

According to the base station of the embodiment of the present invention, the battery module is directly installed on the communication tower, and the storage space of the base station can be reduced, and the space utilization of the base station can be improved. Rate, reduce costs.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

DRAWINGS

1 is a schematic view of a battery module according to an embodiment of the present invention;

2 is a schematic view of a battery module according to an embodiment of the present invention;

Figure 3 is a cross-sectional view of a battery module in accordance with one embodiment of the present invention;

4 is a schematic view of a battery module according to an embodiment of the present invention;

5 is a schematic diagram of a battery module and a power module connected according to an embodiment of the present invention;

6 is a schematic diagram of a battery core set of a battery module according to an embodiment of the present invention;

Fig. 7 is a schematic view showing the mounting of a battery module according to an embodiment of the present invention.

Reference numerals: battery module 100, housing 1, battery core group 2, heat dissipation module 3, heating module 4, housing chamber 101, mounting position 102, power interface 103, communication interface 104, handle 105, lower housing 11, Upper casing 12, seal 13, fastener 14, battery 21, heat sink 31, heat transfer medium 32, power module 200.

detailed description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

At present, the high-frequency application of the wireless communication equipment distribution system is the battery cabinet in the equipment room under the tower or the battery cabinet in the outdoor cabinet. The forced air cooling is adopted, and the noise is large. However, in the construction of outdoor site computer rooms, there are cases where property problems such as land acquisition are difficult to coordinate and power supply expansion is difficult. There is a need for rapid construction in the suburbs. Some emerging operators, power and transmission leases, leased facilities, It is hoped that all equipment will be poled and towered to avoid land acquisition and construction of machine rooms, and to realize small construction network investment and rapid network construction.

To this end, the embodiment of the present invention provides a battery module that can be naturally dissipated and can be installed on a tower. The battery module is suitable for use with outdoor equipment.

The battery module 100 of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 3, a battery module 100 according to an embodiment of the first aspect of the present invention is adapted to be mounted on a communication tower of a base station. The battery module 100 includes a housing 1, a battery core group 2, a heat dissipation module 3, and a heating module 4.

Specifically, a sealed housing chamber 101 is formed in the housing 1, and the battery core group 2 is disposed in the housing chamber 101. The heat dissipation module 3 is connected to the casing 1 and the battery cell group 2, and dissipates heat to the battery cell group 2 through the heat dissipation module 3. The heating module 4 is connected to the housing 1 to heat the receiving chamber 101. That is, the receiving chamber 101 can be heated by the heating module 4 so that the battery pack 2 operates in a good working environment.

The battery module 100 according to the embodiment of the present invention can be heated by the heating module 4 when the ambient temperature is low, and the heat of the battery core group 2 can be dissipated to the casing 1 through the heat dissipation module 3 when the ambient temperature is high. Externally, the heat of the battery core group 2 is taken away. Therefore, by providing the heating module 4 and the heat dissipation module 3, a good working environment can be provided to the battery core group 2, and the environmental temperature requirement of the battery module 100 is lowered.

Referring to FIG. 3, in some embodiments of the present invention, optionally, the housing 1 is a heat conductive housing, and the heat dissipation module 3 includes a heat sink 31 and a heat transfer medium 32.

Optionally, the heat sink 31 is connected to the outer side of the housing 1, and the heat sink 31 extends away from the housing 1, and the heat sink 31 includes a plurality of spaced apart. The heat transfer medium 32 is disposed in the casing 1, and the heat transfer medium 32 is respectively attached to the inner surface of the casing 1 and the battery core group 2. The heat on the battery pack 2 is directed to the heat sink 31 by the heat transfer medium 32. At this time, the airflow in the external environment will carry away the heat on the heat sink 31, thereby reducing the heat on the battery pack 2. In addition, the heat dissipation module has a simple structure and facilitates assembly and production of the battery module 100.

Alternatively, the fins 31 may also be welded or integrally formed on the housing 1.

Optionally, referring to FIG. 3, heat dissipation is provided on any of the two opposite side walls of the housing 1. The sheet 31 and the heat transfer medium 32, in particular, referring to FIG. 3, the outer surface of the upper side wall of the housing 1 is provided with a heat sink 31 and the inner surface is provided with a heat conductive medium 32, and the lower side wall of the housing 1 A heat sink 31 is disposed on the outer surface and a heat conductive medium 32 is disposed on the inner surface, wherein the outer surface and the inner surface are relative to the housing 1. Thereby, the heat dissipation effect of the battery module 100 is further improved.

In addition, the heat dissipating fins 31 and the heat transfer medium 32 are disposed on the opposite side walls of the housing 1, and other components on the other side walls of the housing 1 can be conveniently mounted, thereby preventing the heat sink 31 and heat conduction. The influence of the medium 32 on the production and assembly of the battery module 100 facilitates the assembly and use of the battery module 100.

In addition, the heat sink 31 may be directly connected to the battery core group 2 or the heat sink 31 may be directly connected to the battery core group 2 through the heat conductive medium 32, and a space is provided on the housing, and the heat sink 31 extends out of the space. And the cooling space is closed.

Referring to FIG. 3, in some embodiments of the invention, optionally, the heating module 4 is located within the receiving cavity 101 and disposed around the battery core set 2. Therefore, the ambient temperature of the battery cell group 2 can be better maintained by the heating module 4, thereby improving the stability and service life of the battery cell group 2.

Optionally, heat dissipation modules 3 are disposed on opposite sidewalls of the housing 1 and the heating module 4 is disposed on the other sidewalls of the housing 1.

For example, referring to FIG. 3, the heat dissipation module 3 is disposed on the upper side wall and the lower side wall of the casing 1, and the inner surfaces of the left side wall, the right side wall, the front side wall, and the rear side wall of the casing 1 are disposed. Heating module 4. Mutual interference between the heating module 4 and the heat dissipation module 3 can be avoided.

Alternatively, the heating module 4 can be screwed, snapped or bonded to the housing 1. In order to stably fix the heating module 4, the stability of the battery module 100 is improved.

Referring to Figure 6, in some embodiments of the invention, optionally, the battery cell stack 2 includes a plurality of cells 21 and a controller. The plurality of cells 21 are arranged in a plurality of cell groups in parallel with each other, and the cells 21 in each cell group are connected in series; the controller is connected to the plurality of cells 21, and is arranged to control the charging or discharging of the plurality of cells 21. .

The battery cell group 2 is a high energy density lithium battery integrated system, and independently manages charging and discharging. The main structure is a total of 130 18650 ternary material batteries 21, and the battery core 21 is divided into 10 groups, each group includes 13

batteries

21, 13 batteries 21 of each group are connected in series, and 10 groups of batteries 21 are connected in parallel with each other. ,Energy Density High, consistent, and scalable, capable of continuous discharge at 1.2C high current.

It can be understood by those skilled in the art that the embodiment of the present invention does not limit the configuration of the battery core group 2 and the number of the battery cells (for example, it may be a single battery core, or any number of batteries, and more The description of the connection mode of the cells according to the actual rotation), the number of cells and the connection mode of the cells are only specific examples of the present invention, and are not intended to limit the scope of the present invention.

Referring to FIG. 2, in some embodiments of the present invention, optionally, the housing 1 has a rectangular parallelepiped shape, and the mounting position 102 is provided on at least two side walls of the housing 1. Optionally, mounting points 102 are provided on opposite side walls of the housing 1 to reduce the impact of the environment on the mounting of the battery module 100.

Optionally, a mounting position 102 is provided on the back side and the side surface of the housing 1 to cooperate with the universal mounting member to facilitate the upper tower mounting of the battery module 100.

Referring to FIGS. 4 and 7, in some embodiments of the present invention, optionally, the housing 1 is provided with a handle 105 at one end and a power interface 103 and a communication interface 104 connected to the battery pack 2 at the other end. Convenient connection, transportation and installation of battery modules.

As shown in FIG. 5, in order to implement the backup power of the battery module to the communication device, a power interface 103 and a communication interface 104 are disposed at the bottom of the battery module 100, and are connected to the matched power module 200 to complete charging and discharging of the current. This provides backup power for the communication equipment and provides 1 to 2 hours of backup power.

Referring to FIG. 3, in some embodiments of the invention, optionally, the housing 1 includes a lower housing 11, an upper housing 12, a seal 13 and a fastener 14. The lower case 11 has a box shape in which the upper end is open; the upper case 12 is capped on the upper surface of the lower case 11; the sealing member 13 is disposed between the upper surface of the lower case 11 and the upper case 12, and the sealing member 13 is along the circumferential direction of the lower case 11. Arrangement; fasteners 14 are coupled to upper and

lower casings

12, 11, respectively. The gap between the upper case 12 and the lower case 11 may be sealed by the seal 13 such that a sealed receiving cavity is formed between the upper case 12 and the lower case 11.

In addition, the casing 1 is divided into an upper casing 12 and a lower casing 11 and the lower casing 11 is configured in the shape of a box having an open upper end, which facilitates assembly of the battery module 100.

Optionally, as shown in FIG. 3, the lower surface of the bottom wall of the lower casing 11 is provided with the fins 31, and a heat conducting medium 32 is disposed on the upper surface of the bottom wall of the lower casing 11, on the upper casing 12. A heat sink 31 is provided on the surface, and a heat transfer medium 32 is disposed on the lower surface of the upper case 12. After the battery module 100 is installed, the upper end of the battery core group is bonded to the heat conductive medium 32 on the lower surface of the upper casing 12, and the battery core group is assembled. The lower end is in contact with the heat transfer medium 32 on the upper surface of the bottom wall of the lower casing.

Among them, the lower shell 11, the upper shell 12 and other communication equipments use aluminum alloy die-casting materials, and the outer layer is set to adopt an outdoor dusting process to adapt to outdoor application environments. A seal 13 is provided around the upper case 12 and the lower case 11. The upper casing 12, the lower casing 11 and the sealing member 13 are joined by the tightening of the fasteners 14 by the uniform fasteners 14, so that a sealed cavity can be formed up and down.

Before completing the above-mentioned housing connection, the inner battery core group 2, the heating module 4 and other functional modules, the heat transfer medium 32, etc. are first loaded into the lower casing 11, and then the upper casing 12 is covered, and the fastener 14 is tightened. To achieve complete sealing of the battery core group 2 and the functional module.

According to the environment, the battery module of the invention has strong environmental adaptability, can work normally at -20 to +50 degrees, and can provide direct current for other communication devices.

Heat sinks 31 are provided on one side of the lower case 11 and the upper case 12, respectively. The internal battery cell group 2 and other functional modules complete heat conduction between the heat-conducting medium 32 and the casing 1 to achieve natural heat dissipation and no noise.

The battery module 100 of the embodiment of the invention has a capacity of 1200 Wh, a volume of only 12 L, a weight of less than 15 Kg, and a high integration degree from the bottom into and out of the line. There are common mounting holes on the side and back of the housing 1 to support the installation on both sides, which is convenient for installation on various towers, wall mounts, poles, etc., and can be used in parallel in multiple groups.

The embodiment of the invention provides a battery module 100 with natural heat dissipation, no noise, heat, high protection level and high corrosion resistance level. The battery module 100 can be a battery module. The casing 1 is made of aluminum alloy die-casting material like the communication equipment, and is set to adopt an outdoor dusting process. The battery core group 2 and other functional modules are sealed in the casing 1 and are suitable for outdoor applications. Secondly, the upper and lower shells of the battery module 100 are designed with a heat dissipating tooth structure, and the battery core group 2 and the upper and lower surfaces of the other functional modules are naturally radiated by the heat conducting material respectively contacting the housing.

An embodiment of the second aspect of the present invention proposes a base station (not shown).

A base station according to an embodiment of the second aspect of the present invention includes a communication tower and a battery module 100 according to any of the foregoing embodiments of the present invention installed on a communication tower.

According to the base station of the embodiment of the present invention, the battery module 100 is directly installed on the communication tower, and the storage area of the base station can be reduced without additionally setting up the storage of the equipment room, and the space utilization rate of the base station can be improved and the cost can be reduced.

In the description of the embodiments of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front" , "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial" The orientation or positional relationship of the indications, "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplified description, rather than indicating or implying the indicated device. Or the components must have a particular orientation, are constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the embodiments of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the embodiments of the present invention, the terms "installation", "connected", "connected", "fixed" and the like should be understood broadly, and may be fixed connection, for example, or may be Disassemble the connection, or be integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection of two elements or the interaction of two elements unless otherwise There are clear limits. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the embodiments of the present invention, the first feature "on" or "below" in the second feature may be that the first and second features are in direct contact, or that the first and second features are in the middle, unless otherwise explicitly defined and defined. Indirect contact with the media. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

In the description of the present specification, reference is made to the terms "one embodiment", "some embodiments", "show" The description of the examples, the "specific examples", or "some examples" and the like are intended to include the specific features, structures, materials, or characteristics described in connection with the embodiments or examples in the at least one embodiment or example of the invention. The above description of the terminology is not necessarily intended to be the same embodiment or the examples. The specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Industrial applicability

The above technical solution can be heated by the heating module when the ambient temperature is low, and when the ambient temperature is high, the heat of the battery core group can be dissipated to the outside of the casing through the heat dissipation module, thereby taking away the heat of the battery core group, so By setting the heating module and the heat dissipation module, it is possible to provide a good working environment for the battery core group.

Claims

A battery module, the battery module is adapted to be installed on a communication tower of a base station, and includes:

a housing in which a sealed receiving cavity is formed;

a battery core group, the battery core group being disposed in the receiving cavity;

a heat dissipation module, wherein the heat dissipation module is connected to the housing and the battery core group;

a heating module, the heating module being coupled to the housing and configured to heat the receiving chamber.
The battery module of claim 1 , wherein the housing is a heat-conducting housing, and the heat dissipation module comprises:

a heat sink, the heat sink is connected to an outer side of the housing and extends away from the housing, and the heat sink comprises a plurality of spaced apart;

a heat conductive medium disposed in the housing, the heat conductive medium being respectively attached to an inner surface of the housing and the battery core group.
The battery module according to claim 2, wherein said heat sink and said heat conductive medium are provided on any one of opposite side walls of said housing.
The battery module according to any one of claims 1 to 3, wherein the casing is an aluminum alloy casing, and an outer surface of the casing is disposed to be treated by an outdoor dusting process.
The battery module according to any one of claims 1 to 3, wherein the heating module is located inside the accommodation chamber and arranged around the battery core group.
The battery module according to claim 5, wherein the heating module is screwed, snapped or bonded to the housing.
The battery module according to claim 1, wherein the battery cell group comprises:

a plurality of cells, the plurality of cells being arranged in a plurality of groups of cells connected in parallel with each other, and the cells in each group of cells are connected in series;

And a controller coupled to the plurality of cells and configured to control charging or discharging of the plurality of cells.
The battery module according to any one of claims 1 to 3, wherein the casing is long The square shape is formed, and at least two side walls of the housing are provided with mounting positions.
The battery module according to any one of claims 1 to 3, wherein one end of the housing is provided with a handle and the other end is provided with a power interface and a communication interface connected to the battery core group.
The battery module according to any one of claims 1 to 3, wherein the housing comprises:

a lower case, the lower case being in the shape of a box having an open upper end;

An upper casing, the upper casing being capped on the upper surface of the lower casing;

a seal disposed between an upper surface of the lower case and the upper case, and the seal is disposed along a circumferential direction of the lower case;

A fastener, the fastener being coupled to the upper and lower shells, respectively.
A base station comprising a communication tower and the battery module according to any one of claims 1 to 10, wherein the battery module is mounted on the communication tower.