CN220710491U - Battery module and power supply module - Google Patents

Abstract

The utility model relates to a battery module and a power supply module. A battery module, comprising: a plurality of power supply layers which are sequentially stacked and sequentially connected in series, wherein each power supply layer comprises a plurality of groups of battery assemblies which are connected in series, and each group of battery assemblies comprises a plurality of parallel battery cores; the support assemblies are used for fixing one power layer, and two sides of each support assembly can be connected with the other support assembly; the conductive piece is used for connecting two adjacent groups of battery assemblies in series and/or connecting a plurality of battery cores in each group of battery assemblies in parallel; and the insulating piece is attached to one side of the conductive piece, which is opposite to the battery cell, and covers all the conductive pieces positioned on the same side. So set up, make full use of the space has improved battery module's energy density, and fixed bolster has protected the electric core, can safely install in fixed space again when satisfying the required electric quantity of storage. The arrangement of the conductive piece and the insulating piece improves the safety of installation and use while increasing the conductivity.

Description

Battery module and power supply module

Technical Field

The present utility model relates to the field of battery technologies, and in particular, to a battery module and a power supply module.

Background

With the development of the domestic energy storage device technology, the battery module is widely applied, and the current battery cell is developed towards the development direction of large capacity of a large battery cell, so that a plurality of battery cells of a small battery cell are required to be connected in parallel to reach the capacity of the large battery cell; the battery module has low power consumption and low relative energy density, and thus, increasing the battery cells increases the battery power. However, the space size and structure of the energy storage device can limit the accommodating quantity of the battery module cells, but the energy storage device needs higher voltage and electric quantity, so that a battery module is needed, which not only can meet the voltage and electric quantity required by the energy storage device, but also can be safely installed in a certain space size and structure of the energy storage device.

Disclosure of Invention

Based on this, it is necessary to provide a battery module and a power supply module.

A battery module, comprising:

a plurality of power supply layers which are sequentially stacked and sequentially connected in series, wherein each power supply layer comprises a plurality of groups of battery assemblies which are connected in series, and each group of battery assemblies comprises a plurality of parallel battery cores;

the support assemblies are used for fixing one layer of the power supply layer, and two sides of each support assembly can be mutually connected with the other support assembly;

the conductive piece is used for connecting two adjacent groups of battery assemblies in series and/or connecting a plurality of electric cores in each group of battery assemblies in parallel; and

the insulating piece is attached to one side, opposite to the battery cell, of the conductive piece.

So set up, the electric core is parallelly connected and is formed battery module, and a plurality of battery modules establish ties again and form the power layer, and every power layer is fixed with a set of support, interconnect between the support, and a plurality of power layers are overlapped in proper order and are established in series in proper order and form battery module, make full use of the space, improved battery module's energy density, fixed support has protected the electric core, can safety in the fixed space again when satisfying the required electric quantity of storage. The arrangement of the conductive piece and the insulating piece improves the safety of installation and use while ensuring the conductivity.

In one embodiment, the positive electrodes and the negative electrodes of the plurality of cells in the same group are arranged in the same direction, and the positive electrodes and the negative electrodes of the cells in two adjacent groups are arranged in a back direction.

So set up, the positive pole and the negative pole of a plurality of electric cores in same group set up with the same direction, and the positive pole and the negative pole of electric core in two adjacent groups set up dorsad, are convenient for realize establishing ties and parallelly connected through flaky electrically conductive piece in one side or opposite side for battery module structure is inseparable, has improved energy density.

In one embodiment, the conductive member is a conductive sheet.

The sheet structure of the conductive sheet can reduce the whole volume of the battery module, is convenient for assembly, and is convenient for simultaneously connecting a plurality of electric cores in the same group in parallel and/or connecting battery assemblies of two adjacent groups in series.

In one embodiment, the insulator is a Mylar.

The insulation piece is the Mylar piece, and the Mylar piece has excellent tearing strength, heat resistance, cold resistance, moisture resistance, water resistance and chemical corrosion resistance, has super-strong insulation performance, is not easy to damage, and improves the insulation property and the safety of the battery module.

In one embodiment, the conductive sheet has a plurality of welding positions, each welding position is correspondingly connected with the positive electrode or the negative electrode of one cell, the welding positions are provided with H-shaped welding holes, and the H-shaped welding holes enable the conductive sheet to form two contact sheets capable of being bent relatively at each welding position.

So set up, the welding position has offered H shape welding hole, makes the conducting strip form two contact pieces that can buckle relatively in every welding position department, and the contact piece can buckle when the welding, is favorable to the contact piece to fully paste the positive pole or the negative pole of electric core, has increased the contact area of conducting strip and positive negative pole of electric core, guarantees the conduction of electrode electric quantity.

In one embodiment, each group of the bracket components comprises a first bracket body and a second bracket body which are oppositely arranged, a plurality of first hole seats are arranged on one side, close to the second bracket body, of the first bracket body, a plurality of second hole seats are correspondingly arranged on one side, close to the first bracket body, of the second bracket body, and the first hole seats and the second hole seats which are corresponding in position are mutually matched and can fix two opposite ends of the battery cell.

So set up, the first support body that sets up relatively and second support body are close to one side of counterparty and are equipped with the hole seat, and the both ends of electric core can be fixed in relative hole seat, and the series connection and the parallelly connected between the electric core of being convenient for have improved the fixed action of support to electric core, have increased battery module's security.

In one embodiment, a first connecting portion is disposed on a side, close to the second frame, of the first frame, a first matching portion is disposed on a side, close to the first frame, of the second frame, and the first connecting portion can penetrate through a gap between two adjacent battery cells to be connected to the first matching portion.

So set up, the first connecting portion of first support body can pass the space between two adjacent electric cores and be connected with the first cooperation portion of second support body for electric core is firmly fixed in between first support body and the second support body, has strengthened the installation stability of first support body and second support body, has improved the supporting and the guard action to electric core, has improved the structural compactness of battery module simultaneously.

In one embodiment, the first matching portion is disposed on a side, close to the second frame, of the first frame, the first connecting portion is disposed on a side, close to the first frame, of the second frame, and the first connecting portion can penetrate through a gap between two adjacent battery cells to be connected to the first matching portion.

So set up, the first connecting portion of second support body can pass the space between two adjacent electric cores and be connected with the first cooperation portion of first support body for electric core is firmly fixed in between first support body and the second support body, has strengthened the installation stability of first support body and second support body, has improved the supporting and the guard action to electric core, has improved the structural compactness of battery module simultaneously.

In one embodiment, the first connection portion is a connection post, and the first mating portion is a clamping groove.

So set up, first support body and second support body can be through the mutual joint of cooperation in joint post and joint groove, and the joint mode is safer convenient for screw threaded connection's mode.

In one embodiment, the first hole seat includes a first accommodating portion and a first limiting portion, the first accommodating portion is a first through hole formed in the first frame body, the first limiting portion is a first blocking piece disposed on one side of the first frame body opposite to the second frame body, and the first blocking piece partially blocks the first through hole;

the second hole seat comprises a second accommodating part and a second limiting part, the second accommodating part is a second through hole formed in the second frame body, the second limiting part is a second blocking sheet arranged on one side of the second frame body opposite to the first frame body, and the second blocking sheet partially blocks the second through hole.

So set up, first holding portion and second holding portion are offered in first through-hole and the second through-hole of first support body and second support body, are used for holding and joint both ends that a electric core is relative during the cooperation, and deviate from first card separation blade and the second card separation blade that set up relatively, can block electric core roll-off in first through-hole or the second through-hole, and the electric core is difficult for taking place the displacement in the hole seat, has guaranteed the installation stability of electric core, has improved the security when electric core uses.

The utility model also provides a power supply module, which comprises an electric control plate and the battery module, wherein the electric control plate is arranged on one side of the battery module, and the total positive electrode and the total negative electrode of the battery module are respectively and electrically connected with the electric control plate.

So set up, battery module's total positive pole and total negative pole electricity are connected respectively with the automatically controlled board, and the automatically controlled board can accept and send the signal under the drive of power, and the use of control whole circuit is convenient for power module's safe handling.

In one embodiment, the power module further comprises a voltage detector comprising a detection tab and a data feedback connection; the detection piece is connected to the conductive piece and is used for measuring the voltage of each group of battery components; one end of the data feedback connecting piece is connected with the detection piece, and the other end of the data feedback connecting piece is connected with the electric control board in a communication mode and is used for feeding back voltage data measured by the detection piece to the electric control board.

The setting like this, voltage monitor's detection piece is connected in electrically conductive piece, and data feedback connecting piece one end is connected in the detection piece, and one end communication connection and automatically controlled board can in time detect every group battery pack's voltage and feed back data to automatically controlled board, and automatically controlled board can use the adjustment to battery pack according to voltage data, and the performance detection of battery pack of being convenient for has improved the security that power module used simultaneously.

In one embodiment, the power supply module further comprises a temperature sensor, the temperature sensor comprises a temperature sensing end and a signal output end, the temperature sensing end is attached to the electric core, and the signal output end is in communication connection with the electric control board.

So set up, temperature sensor temperature sensing end pastes locates the electricity core, and signal output part communication connection is in automatically controlled board, because the battery can rise when using the temperature, but the high temperature can produce huge influence to performance, the life-span of battery, probably take place thermal runaway scheduling safety problem even, and temperature sensor is convenient for detect the temperature of battery, and the automatically controlled board can control the battery and stop using after receiving high temperature signal, and the performance detection of battery pack of being convenient for has improved the security that power module used simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure of a power module according to an embodiment of the utility model;

fig. 2 is a schematic view illustrating the overall structure of a battery module according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a cell arrangement of a battery assembly according to an embodiment of the utility model;

fig. 4 is an exploded view of a battery pack according to an embodiment of the present utility model;

fig. 5 is an exploded view of a battery pack in another embodiment of the present utility model;

FIG. 6 is an enlarged view of the first frame of the portion A in FIG. 5;

FIG. 7 is an enlarged view of the second frame of the portion B of FIG. 5;

fig. 8 is an installation schematic of a battery pack in another embodiment of the present utility model;

fig. 9 is a schematic diagram showing the overall structure of the conductive sheet and the detection sheet according to an embodiment of the present utility model.

Reference numerals:

1000. a power supply module; 100. a battery module; 110. a power plane; 111. a battery assembly; 1111. a battery cell; 11111. a positive electrode; 11112. a negative electrode; 120. a bracket assembly; 121. a first frame body; 1211. a first hole seat; 12111. a first accommodating portion; 12112. a first limit part; 1212. a first connection portion; 122. a second frame body; 1221. a second hole seat; 12211. a second accommodating portion; 12212. a second limit part; 1222. a first mating portion; 130. a conductive member; 131. welding positions; 1311. welding holes; 1312. a contact; 140. an insulating member; 150. a total positive electrode; 160. a total negative electrode; 170. a threaded fastener; 200. an electric control board; 300. a voltage monitor; 310. a detection sheet; 400. a temperature sensor.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, 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, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram illustrating an overall structure of a power supply module 1000 according to an embodiment of the utility model; fig. 2 is a schematic diagram illustrating the overall structure of a battery module 100 according to an embodiment of the present utility model; the battery module 100 is commonly used as an energy storage device, and can be applied to the fields of electric automobiles, energy storage systems, intelligent home, unmanned aerial vehicles and the like.

The battery module 100 includes an electric core 1111, the electric core 1111 is a minimum unit of a power battery, and is also an electric energy storage unit, and when a plurality of electric cores 1111 are connected in series or in parallel and are connected with the outside through a uniform boundary, the battery module 100 is formed, and the battery module 100 can support, fix and protect the electric core 1111.

It is understood that the number of the battery cells 1111 of the battery module 100 is not fixed, so long as the purpose of storing the required pair of electric power can be achieved, and the present utility model is not limited thereto.

It is to be understood that the battery module 100 may be formed by connecting a plurality of battery cells 1111 in series, or may be formed by connecting a plurality of battery cells 1111 in parallel, or may be formed by connecting a plurality of battery cells 1111 in series and then in parallel, or may be formed by connecting a plurality of battery cells 1111 in parallel and then in series, so long as the required electric quantity can be stored and the battery cells 1111 can be supported, fixed and protected, which is not limited herein.

With the development of the domestic energy storage device technology, the battery module 100 is more widely applied, and the current battery cell 1111 is developed towards the development direction of large capacity of the large battery cell 1111, so that a plurality of battery cells 1111 of the small battery cell 1111 must be connected in parallel to reach the capacity of the large battery cell 1111; the battery module 100 is constructed with a small number of battery cells 1111, and thus has a low module capacity and a low relative energy density, and thus increasing the battery cells 1111 increases the battery capacity. However, the space size and structure of the energy storage device can limit the accommodating amount of the battery cells 1111 of the battery module 100, but the energy storage device needs higher voltage and electric quantity, so that a battery module 100 is needed, which can not only meet the voltage and electric quantity required by the energy storage device, but also be safely installed in a certain space size and structure of the energy storage device.

Based on this, referring to fig. 2, 4 and 8, the battery module 100 includes:

a plurality of power supply layers 110 which are sequentially stacked and sequentially connected in series, wherein each power supply layer 110 comprises a plurality of groups of battery assemblies 111 which are connected in series, and each group of battery assemblies 111 comprises a plurality of parallel battery cores 1111;

the bracket assemblies 120, each group of the bracket assemblies 120 is used for fixing one layer of the power supply layer 110, and two sides of each group of the bracket assemblies 120 can be mutually connected with the other group of the bracket assemblies 120;

a conductive member 130 for connecting two adjacent groups of the battery assemblies 111 in series and/or for connecting a plurality of the battery cells 1111 in each group of the battery assemblies 111 in parallel; and

the insulating member 140 is attached to a side of the conductive member 130 opposite to the battery cell 1111.

So set up, electric core 1111 connects in parallel and forms battery module 111, and a plurality of battery modules 111 establish ties again and form power layer 110, and every power layer 110 is fixed with a set of support, interconnect between the support, and a plurality of power layers 110 are folded in proper order and are established in series in proper order and form battery module 100, make full use of the space, improved battery module 100's energy density, fixed support has protected electric core 1111, can be safely installed in fixed space again when satisfying the required electric quantity of storage. The arrangement of the conductive member 130 and the insulating member 140 improves the safety of installation and use while increasing the conductive performance.

It should be understood that the number of the power layers 110 is not fixed, and may be one or more, so long as the purpose of storing the required electric power can be achieved, and the present utility model is not limited thereto.

It is to be understood that the number of the battery assemblies 111 may be one or a plurality, so long as the purpose of storing the required pair of electric power can be achieved, and the present utility model is not limited thereto.

It is understood that the number of the battery cells 1111 in the battery assembly 111 is not fixed, and may be one or more, so long as the purpose of storing the required pair of electric power can be achieved, which is not limited herein.

It is understood that the number of the bracket assemblies 120 corresponds to the number of the power layers 110, so long as the purpose of fixedly supporting and protecting the battery cells 1111 can be achieved.

It should be appreciated that the material of the bracket assembly 120 may be plastic or other insulating material, so long as the purpose of fixedly supporting and protecting the battery cells 1111 is achieved, which is not limited herein.

It is understood that the shape of the bracket assembly 120 may be square, circular or other shape, so long as the purpose of mounting in a specific space and fixedly supporting and protecting the battery cells 1111 can be achieved, which is not limited herein.

It is understood that the conductive member 130 is a metal member, including but not limited to nickel, copper, aluminum, and other metal materials, so long as the purpose of connecting the battery cells 1111 in series or in parallel can be achieved, which is not limited herein.

Referring to fig. 2 and 3, in one embodiment, the battery module 100 includes two layers of the power layers 110, each layer of the power layers 110 includes 4 groups of battery assemblies 111 connected in series, each group of battery assemblies 111 includes 10 battery cells 1111, 10 battery cells 1111 are arranged to form an L-shaped structure, and two adjacent groups of battery assemblies 111 can be embedded side by side to form a rectangular structure.

So set up, 10 the electric core 1111 is arranged and is formed L shape structure for adjacent two sets of battery pack 111 can be embedded side by side and form the rectangle structure, and every power layer 110 includes 4 battery pack 111 of group series connection, and battery module 100 includes two-layer power layer 110, is favorable to the parallelly connected between the electric core 1111 and the series connection of battery pack 111, has increased the utilization ratio in space, and battery module 100 reaches required electric quantity under the condition that satisfies the space size.

It will be appreciated that in other embodiments, there may be multiple power layers 110, and each power layer 110 may include an unfixed number of battery assemblies 111, and each battery assembly 111 may include an unfixed number of battery cells 1111, so long as the purpose of being able to be installed in a specific space and store a desired pair of electricity amounts is achieved, which is not limited herein.

It is to be understood that, in the present embodiment, the battery cells 1111 are arranged to form an L-shaped structure, and in other embodiments, the battery cells 1111 may be arranged to form other shapes such as square, circular, etc., so long as the purpose of facilitating the parallel connection between the battery cells 1111 and the serial connection of the battery modules 111 can be achieved, which is not limited herein.

In one embodiment, the cell 1111 is a 26700 capacity lithium iron phosphate cell 1111.

So set up, lithium iron phosphate electric core 1111 capacity is big, can reach required great electric quantity with less electric core 1111, simultaneously, lithium iron phosphate electric core 1111's longe-lived, light in weight, the cost is lower relatively, has improved the security of battery module 100.

It should be noted that, the capacity of the 26700 capacity lithium iron phosphate battery 1111 is 4000mAh, the voltage is 3.2V, 10 battery cells are connected in parallel to each group of battery assemblies 111, the energy storage of the battery module 100 after the 8 groups of battery assemblies 111 are connected in series can exceed 1000Wh, the electric quantity of 1 hour can be output with high output power of 1000W, and the requirement of outputting 1 degree of electricity per hour is satisfied. In other words, the battery module 100 provided by the application has a compact overall structure, small occupied volume, and strong power supply speed and capacity.

It is to be understood that, in other embodiments, the battery cell 1111 may be a common lithium ion battery cell 1111, a polymer lithium battery cell 1111, a nickel hydrogen battery cell 1111, etc., so long as the purpose of storing the required pair of electric power can be achieved, which is not limited herein.

Referring to fig. 2 and 3 again, in one embodiment, the positive electrodes 11111 and the negative electrodes 11112 of the plurality of cells 1111 in the same group are disposed in the same direction, and the positive electrodes 11111 and the negative electrodes 11112 of the cells 1111 in two adjacent groups are disposed opposite to each other.

So set up, the positive electrode 11111 and the negative electrode 11112 of a plurality of electric core 1111 in same group are equidirectional to set up, and the positive electrode 11111 and the negative electrode 11112 of electric core 1111 in two adjacent groups set up dorsad, are convenient for realize establishing ties and parallelly connected through sheet electrically conductive piece 130 in one side or opposite side for battery module 100 structure is inseparable, has improved energy density.

It is to be understood that, in other embodiments, the arrangement directions of the positive electrode 11111 and the negative electrode 11112 of the electrodes are not limited, so long as the purpose of facilitating the parallel connection between the battery cells 1111 and the serial connection of the battery modules 111 is achieved, which is not limited herein.

In one embodiment, the conductive member 130 is a conductive sheet. Each conductive tab can be connected in parallel with multiple cells 1111 in the same set and/or in series with the battery assembly 111 of two adjacent sets.

Thus, the sheet structure of the conductive sheet can reduce the overall volume of the battery module 100, facilitate assembly, and facilitate parallel connection of a plurality of cells 1111 in the same group and/or series connection of two adjacent groups of battery modules 111.

It is understood that the conductive sheet is a sheet metal member, including but not limited to nickel, copper, aluminum, and other metal materials, so long as the purpose of connecting the cells 1111 in series or in parallel can be achieved, and the utility model is not limited herein.

It should be noted that, in this embodiment, a plurality of conductive plates are provided, the size of the conductive plates is not limited, and the size of the conductive plates can be adjusted according to the requirement, and the conductive plates can be used to connect a plurality of battery cells 1111 in a group of battery assemblies 111 in parallel, or can be used to connect a plurality of battery cells 1111 in a group of battery assemblies 111 in parallel and simultaneously connect a plurality of groups of battery assemblies 111 in series.

Referring to fig. 4, in one embodiment, the insulating member 140 is a mylar sheet.

So set up, insulator 140 is the wheat pulling-on piece, and the wheat pulling-on piece has good tear strength, and heat and cold-resistant, moisture-resistant water-fast, chemical corrosion resistant to have superstrong insulating properties, not fragile has improved battery module 100 insulating property and security.

It should be understood that in other embodiments, the insulating member 140 may be made of other insulating materials such as plastic, rubber, etc., so long as the purpose of not conducting electric energy is achieved, which is not limited herein.

Further, in one embodiment, each insulator 140 covers all of the conductors 130 on the same side. So set up, the battery module 100's of being convenient for whole equipment when guaranteeing insulating reliability.

It will be appreciated that the conductive members 130 on each side of the power layer 110 may also be insulated from the outside by a plurality of insulating members 140 that are mutually spliced.

Referring to fig. 9, in one embodiment, the conductive sheet has a plurality of soldering sites 131, each soldering site 131 is correspondingly connected to the positive electrode 11111 or the negative electrode 11112 of one of the battery cells 1111, the soldering site 131 is provided with an H-shaped soldering hole 1311, and the H-shaped soldering hole 1311 enables the conductive sheet to form two contacts 1312 at each soldering site 131, which can be bent relatively.

So set up, H shape welding hole 1311 has been seted up to welding position 131, makes the conducting strip form two contact pieces 1312 that can buckle relatively in every welding position 131 department, and the contact piece 1312 can buckle when the welding, is favorable to contact piece 1312 fully to paste the positive electrode 11111 or the negative electrode 11112 of electric core 1111, has increased the area of contact of conducting strip and electric core 1111 positive and negative electrode 11112, guarantees the conduction of electrode electric quantity.

It is understood that in other embodiments, the weld 131 may be other shapes. The contact 1312 is not limited in this regard as long as it can sufficiently adhere to the positive electrode 11111 or the negative electrode 11112 of the electric core 1111 at the time of soldering.

It is to be understood that the conductive sheet may be a single piece or may be formed by splicing a plurality of pieces, so long as the purpose of forming the contact 1312 to be capable of sufficiently adhering to the positive electrode 11111 or the negative electrode 11112 of the electric core 1111 during welding is achieved, which is not limited herein.

Referring to fig. 4 and 5 again, in one embodiment, each set of the bracket assemblies 120 includes a first frame 121 and a second frame 122 that are disposed opposite to each other, a plurality of first hole seats 1211 are disposed on a side of the first frame 121 adjacent to the second frame 122, a plurality of second hole seats 1221 are disposed on a side of the second frame 122 adjacent to the first frame 121, and the first hole seats 1211 and the second hole seats 1221 that are disposed opposite to each other are matched with each other to fix opposite ends of one battery cell 1111.

So set up, the first support body 121 and the second support body 122 that set up relatively are close to one side of each other and are equipped with the hole seat, and the both ends of electric core 1111 can be fixed in relative hole seat, be convenient for establish ties and parallelly connected between the electric core 1111, improved the fixed action of support to electric core 1111, increased the security of battery module 100.

It should be understood that the first frame 121 and the second frame 122 may be the same or different, so long as the purpose of fixing the opposite ends of one cell 1111 after being mated is achieved, which is not limited herein.

It is understood that the first hole seat 1211 and the second hole seat 1221 are shaped corresponding to the battery cells 1111, so as to fix opposite ends of one battery cell 1111 after being mated.

Referring to fig. 4 again, in one embodiment, a first connecting portion 1212 is disposed on a side of the first frame 121 relatively close to the second frame 122, a first mating portion 1222 is disposed on a side of the second frame 122 relatively close to the first frame 121, and the first connecting portion 1212 can be connected to the first mating portion 1222 through a gap between two adjacent battery cells 1111.

So set up, the first connecting portion 1212 of first support body 121 can pass the space between two adjacent electric core 1111 and be connected with the first cooperation portion 1222 of second support body 122 for electric core 1111 is firmly fixed in between first support body 121 and the second support body 122, has strengthened the installation stability of first support body 121 and second support body 122, has improved the supporting and the guard action to electric core 1111, has improved the structural compactness of battery module 100 simultaneously.

In one embodiment, the first mating portion 1222 is disposed on a side of the first frame 121 relatively close to the second frame 122, the first connecting portion 1212 is disposed on a side of the second frame 122 relatively close to the first frame 121, and the first connecting portion 1212 can be connected to the first mating portion 1222 through a gap between two adjacent battery cells 1111.

So set up, the first connecting portion 1212 of second support 122 can pass the space between two adjacent electric core 1111 and be connected with the first cooperation portion 1222 of first support 121 for electric core 1111 is firmly fixed in between first support 121 and the second support 122, has strengthened the installation stability of first support 121 and second support 122, has improved the support and the guard action to electric core 1111, has improved the structural compactness of battery module 100 simultaneously.

It is understood that in one embodiment, the first connecting portion 1212 may be a connecting post, and the first mating portion 1222 may be a clamping groove.

So set up, first support body 121 and second support body 122 can be through the cooperation mutual joint of spliced pole and joint groove, and the joint mode is safer convenient for screw threaded connection's mode.

It is understood that the first connecting portion 1212 and the first mating portion 1222 may be other mating structures, so long as the purpose of firmly fixing the battery cell 1111 between the first frame 121 and the second frame 122 and tightly mating the first frame 121 and the second frame 122 is achieved.

It will be appreciated that, in order to make the connection between the first frame 121 and the second frame 122 stronger, a threaded fastener 170 may be added for connection and fixation.

Referring to fig. 5 and 8 again, in one embodiment, the first frame 121 and the second frame 122 are not provided with the first connection portion 1212 and the first mating portion 1222, but are connected and fixed by the threaded fastener 170 through the gap between the two adjacent battery cells 1111.

Referring to fig. 6 and fig. 7 again, in one embodiment, the first hole seat 1211 includes a first accommodating portion 12111 and a first limiting portion 12112, the first accommodating portion 12111 is a first through hole formed in the first frame 121, the first limiting portion 12112 is a first blocking piece disposed on a side of the first frame 121 opposite to the side facing away from the second frame 122, and the first blocking piece partially blocks the first through hole;

the second hole seat 1221 includes a second accommodating portion 12211 and a second limiting portion 12212, where the second accommodating portion 12211 is a second through hole formed in the second frame 122, the second limiting portion 12212 is a second blocking piece disposed on a side of the second frame 122 opposite to the side facing away from the first frame 121, and the second blocking piece partially blocks the second through hole.

So set up, first accommodation portion 12111 and second accommodation portion 12211 are offered in first support body 121 and the first through-hole and the second through-hole of second support body 122, are used for holding and joint opposite both ends of electric core 1111 during the cooperation, and deviate from first card separation blade and the second card separation blade that set up relatively, can block electric core 1111 and roll off from first through-hole or second through-hole, and electric core 1111 is difficult for taking place the displacement in the hole seat, has guaranteed the installation stability of electric core 1111, has improved the security when electric core 1111 uses.

It is to be understood that the shapes of the first blocking piece and the second blocking piece may be the same or different, so long as the purpose of blocking the battery cell 1111 from sliding out of the first through hole or the second through hole can be achieved, and the present utility model is not limited thereto.

It is to be understood that the first blocking piece and the second blocking piece may be annular or semi-annular, so long as the purpose of blocking the battery cell 1111 from sliding out of the first through hole or the second through hole can be achieved, and the utility model is not limited herein.

It is to be understood that the first blocking piece and the second blocking piece may be multiple or single, so long as the purpose of blocking the battery cell 1111 from sliding out of the first through hole or the second through hole can be achieved, and the present utility model is not limited thereto.

It can be appreciated that in one embodiment, the first blocking piece and the second blocking piece are respectively four and distributed at four corners of the first through hole.

Referring to fig. 1 again, the present utility model further provides a power supply module 1000, where the power supply module 1000 includes an electric control board 200 and the above-mentioned battery module 100, the electric control board 200 is disposed on one side of the battery module 100, and the total positive electrode 150 and the total negative electrode 160 of the battery module 100 are electrically connected to the electric control board 200 respectively.

So set up, the total positive pole 150 and the total negative pole 160 of battery module 100 are respectively electrically connected with electric control board 200, and electric control board 200 can accept and send the transmission signal under the drive of power, controls the use of whole circuit, the safe handling of power module 1000 of being convenient for.

Referring to fig. 1 and 9 again, in one embodiment, the power supply module 1000 further includes a voltage detector, and the voltage detector includes a detecting piece 310 and a data feedback connection; wherein the detecting piece 310 is connected to the conductive member 130 for measuring the voltage of each group of the battery modules 111; one end of the data feedback connector is connected to the detecting plate 310, and the other end is connected to the electric control board 200 in a communication manner, so as to feed back the voltage data detected by the detecting plate 310 to the electric control board 200.

Thus, the detecting piece 310 of the voltage monitor 300 is connected to the conductive piece 130, one end of the data feedback connecting piece is connected to the detecting piece 310, and the other end of the data feedback connecting piece is connected to the electric control board 200 in a communication manner, so that the voltage of each group of battery assemblies 111 can be detected in time and data can be fed back to the electric control board 200, the electric control board 200 can adjust the use of the battery assemblies 111 according to the voltage data, the performance detection of the battery assemblies 111 is facilitated, and the use safety of the power supply module 1000 is improved.

It will be appreciated that the number of voltage detectors corresponds to the number of battery modules 111, and that when a problem occurs in the voltage of one battery module 111, the electronic control board 200 can discard that battery module 111, leaving other battery modules 111 for normal use.

It will be appreciated that in one embodiment, the sensing tab 310 is integrally formed with the conductive member 130.

Referring to fig. 1 again, in one embodiment, the power supply module 1000 further includes a temperature sensor 400, the temperature sensor 400 includes a temperature sensing end and a signal output end, the temperature sensing end is attached to the electric core 1111, and the signal output end is communicatively connected to the electronic control board 200.

So set up, temperature sensor 400 temperature sensing end pastes locates electric core 1111, signal output part communication is connected in automatically controlled board 200, because the battery can rise when using temperature, but the high temperature can produce huge influence to performance, the life-span of battery, perhaps take place safety problems such as thermal runaway even, temperature sensor 400 is convenient for detect the temperature of battery, automatically controlled board 200 can control the battery and stop using after receiving high temperature signal, the performance detection of battery pack 111 of being convenient for has improved the security that power module 1000 used simultaneously.

It should be understood that the temperature sensor 400 may be a plurality or one, so long as the purpose of detecting the battery cells 1111 and connecting to the electronic control board 200 in a communication manner is achieved, which is not limited herein.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A battery module, comprising:

a plurality of power supply layers which are sequentially stacked and sequentially connected in series, wherein each power supply layer comprises a plurality of groups of battery assemblies which are connected in series, and each group of battery assemblies comprises a plurality of parallel battery cores;

the support assemblies are used for fixing one layer of the power supply layer, and two sides of each support assembly can be mutually connected with the other support assembly;

the conductive piece is used for connecting two adjacent groups of battery assemblies in series and/or connecting a plurality of electric cores in each group of battery assemblies in parallel; and

the insulating piece is attached to one side, opposite to the battery cell, of the conductive piece.

2. The battery module according to claim 1, wherein the positive electrodes and the negative electrodes of the plurality of cells in the same group are arranged in the same direction, and the positive electrodes and the negative electrodes of the cells in adjacent two groups are arranged in a back direction.

3. The battery module according to claim 2, wherein the conductive member is a conductive sheet; and/or the number of the groups of groups,

the insulating piece is a Mylar piece.

4. The battery module of claim 3, wherein the conductive sheet has a plurality of welding sites, each of the welding sites is correspondingly connected with the positive electrode or the negative electrode of one of the battery cells, the welding sites are provided with H-shaped welding holes, and the H-shaped welding holes enable the conductive sheet to form two relatively bendable contact sheets at each welding site.

5. The battery module according to claim 1, wherein each set of the bracket assemblies comprises a first bracket body and a second bracket body which are oppositely arranged, a plurality of first hole seats are formed in one side, close to the second bracket body, of the first bracket body, a plurality of second hole seats are correspondingly formed in one side, close to the first bracket body, of the second bracket body, and the first hole seats and the second hole seats, corresponding in position, are mutually matched and can fix two opposite ends of one battery cell.

6. The battery module according to claim 5, wherein a first connecting portion is provided on a side of the first frame body opposite to the side close to the second frame body, a first mating portion is provided on a side of the second frame body opposite to the side close to the first frame body, and the first connecting portion can be connected to the first mating portion through a gap between two adjacent cells; and/or the number of the groups of groups,

the first frame body is provided with the first cooperation portion relatively near one side of second frame body, the second frame body is provided with relatively near one side of first frame body first connecting portion, first connecting portion can pass adjacent two the space between the electric core connect in first cooperation portion.

7. The battery module of claim 6, wherein the first connection portion is a connection post and the first mating portion is a clamping groove.

8. The battery module of claim 5, wherein the first hole seat comprises a first accommodating portion and a first limiting portion, the first accommodating portion is a first through hole formed in the first frame body, the first limiting portion is a first blocking piece arranged on one side, opposite to the second frame body, of the first frame body, and the first blocking piece partially blocks the first through hole;

the second hole seat comprises a second accommodating part and a second limiting part, the second accommodating part is a second through hole formed in the second frame body, the second limiting part is a second blocking sheet arranged on one side of the second frame body opposite to the first frame body, and the second blocking sheet partially blocks the second through hole.

9. A power supply module, characterized by comprising an electric control board and the battery module according to any one of claims 1 to 8, wherein the electric control board is arranged on one side of the battery module, and the total positive electrode and the total negative electrode of the battery module are respectively and electrically connected with the electric control board.

10. The power module of claim 9, further comprising a voltage detector comprising a sensing tab and a data feedback connection; the detection piece is connected to the conductive piece and is used for measuring the voltage of each group of battery components; one end of the data feedback connecting piece is connected with the detection piece, and the other end of the data feedback connecting piece is connected with the electric control board in a communication way and is used for feeding back voltage data measured by the detection piece to the electric control board; and/or the number of the groups of groups,

the power supply module further comprises a temperature sensor, the temperature sensor comprises a temperature sensing end and a signal output end, the temperature sensing end is attached to the battery cell, and the signal output end is in communication connection with the electric control board.