CN217507531U - Battery and power consumption device - Google Patents

Abstract

The application provides a battery and electric device, the battery includes: two end plates arranged at intervals along a first direction; the battery units are stacked and arranged between the two end plates; the both ends of fixed band respectively with two end plate joint to the direction that two end plates of restriction deviate from each other removes. Among this application technical scheme, the both ends of fixed band are connected through the mode of joint with the end plate, can effectively reduce the equipment operation degree of difficulty and equipment man-hour demand when guaranteeing that the fixed band is connected stably to effectively improve the packaging efficiency of fixed band, and then effectively improve the packaging efficiency of battery.

Description

Battery and power consumption device

Technical Field

The application relates to the technical field of batteries, in particular to a battery and an electric device.

Background

Energy conservation and emission reduction are the key points of sustainable development of the automobile industry, and electric vehicles become important components of the sustainable development of the automobile industry due to the advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in its development.

In the development of battery technology, how to improve the battery assembly efficiency is a technical problem that needs to be solved urgently in the battery production technology.

SUMMERY OF THE UTILITY MODEL

The application provides a battery and electric device, this battery has higher packaging efficiency.

In a first aspect, the present application provides a battery comprising: two end plates arranged at intervals along a first direction; the battery units are stacked and arranged between the two end plates; the both ends of fixed band respectively with two end plate joint to the direction that two end plates of restriction deviate from each other removes.

In the technical scheme, the fixing belt is arranged between the two end plates of the battery, and the fixing belt has a limiting effect on the single batteries arranged between the two end plates, so that the structural stability of a single battery pack formed by a plurality of single batteries is effectively ensured; the two ends of the fixing band are connected with the end plate in a clamping mode, and compared with the conventional connecting modes such as welding or locking, the assembling operation difficulty and the assembling working hour requirement can be effectively reduced, so that the assembling efficiency of the fixing band is effectively improved while the stable connection of the fixing band is ensured, and the production efficiency of the battery is further effectively improved; meanwhile, compared with a battery adopting a winding type fixing belt structure, the fixing belt of the battery is low in space occupancy rate, and therefore the energy density of the whole battery is improved.

According to some embodiments of this application, the fixed band includes fixed band body and joint spare, and the fixed band body extends along the first direction, and the joint spare is connected in the both ends of fixed band body, and the joint spare is used for with the end plate joint.

Among the above-mentioned technical scheme, the both ends of fixed band body set up joint spare, and the joint is realized through the joint spare that sets up at the both ends of fixed band body to the fixed band of being convenient for and two end plates.

According to some embodiments of the present application, a clip includes: the first clamping part and the fixing belt body are arranged at intervals along a second direction, and the second direction is vertical to the first direction; the second joint portion connects fixed band body and first joint portion.

Among the above-mentioned technical scheme, the joint spare includes first joint portion and second joint portion, second joint portion can effectively restrict the fixed band body and remove along the first direction, first joint portion plays the restriction effect to the atress moving direction of second joint portion, restriction second joint portion atress removes along the second direction, first joint portion and second joint portion combine each other, avoid the fixed band to break away from the end plate along the second direction when effectively avoiding the fixed band atress to remove along the first direction, thereby effectively guarantee the stability of fixed band and end plate joint.

According to some embodiments of the present application, the first clamping portion and the second clamping portion form a T-shaped structure.

Among the above-mentioned technical scheme, first joint portion and second joint portion form T type structure, and first joint portion is more balanced to the limiting displacement of second joint portion, further reduces the risk that second joint portion atress is deviate from.

According to some embodiments of the application, the end plate is provided with a first clamping groove and a second clamping groove which are communicated with each other, the first clamping groove is used for inserting the first clamping portion, and the second clamping groove is used for inserting the second clamping portion.

Among the above-mentioned technical scheme, first joint portion inserts first joint groove, and first joint groove plays spacing joint effect to first joint portion, and second joint portion inserts second joint groove, and the second joint groove plays limiting displacement to second joint portion, and first joint groove and second joint groove mutually support, and the stable inlay card of joint spare is spacing on the end plate, realizes the stable joint of end plate and fixed band, and simple structure is convenient for process, and the joint stable performance.

According to some embodiments of the present application, the end plate includes two side surfaces opposite in a width direction of the end plate, and a top surface and a bottom surface opposite to each other in a height direction of the end plate, the fixing band body facing the side surfaces; the first clamping groove and the second clamping groove are both arranged on the top surface, or the first clamping groove and the second clamping groove are both arranged on the bottom surface; wherein, the one end and the first joint groove intercommunication in second joint groove, the other end extends to the side.

Among the above-mentioned technical scheme, the fixed band body sets up in the side of end plate spacing to two end plates, avoids occuping battery top or bottom space to avoid interfering with the part or other adapting unit that converge of battery, first slot and second slot set up the top surface or the bottom surface at the end plate, are convenient for insert first slot and second slot with the joint piece correspondence along the direction of height of end plate, and the joint piece of being convenient for is installed with the block of end plate.

According to some embodiments of the present application, the fixing band is provided with a plurality of fixing bands respectively provided at opposite sides of the width direction of the end plate.

Among the above-mentioned technical scheme, set up a plurality of fixed bands and distribute in the width direction's of end plate both sides, be favorable to improving end plate atress equilibrium to further improve end plate and fixed band to the spacing stability of a plurality of battery monomers.

According to some embodiments of the present application, the fixing band body is tubular, and the fixing band body is used for accommodating a medium to adjust the temperature of the battery cell.

Among the above-mentioned technical scheme, the fixed band sets up to the tubular structure, is convenient for let in the medium and adjust the free temperature of battery in to the fixed band, and the fixed band of this kind of structure can manage the free temperature of battery when playing limiting displacement to the battery monomer, and function integration nature is strong.

According to some embodiments of the present application, the fixing band body is in a flat tube shape and includes a first side wall and a second side wall opposite to each other in a thickness direction of the fixing band body, the first side wall facing the battery cell.

Among the above-mentioned technical scheme, the fixed band is flat tubular structure, and follows the relative lateral wall of its thickness direction towards battery monomer for the fixed band has towards the great surface of the free area of battery, and then effectively improves the fixed band and to the free temperature management effect of battery.

According to some embodiments of the present application, a clip includes: the first clamping part and the fixing belt body are arranged at intervals along a second direction, and the second direction is vertical to the first direction; the second clamping portion is connected with the first side wall and the first clamping portion.

Among the above-mentioned technical scheme, first lateral wall and first joint portion are connected to the second joint portion of joint spare, effectively guarantee the area of being connected of second joint portion and fixed band body to guarantee the stability of being connected of fixed band body and joint spare.

According to some embodiments of the present application, along the third direction, a ratio of a width of the second clamping portion to a width of the first sidewall is D, which satisfies that D is greater than or equal to 0.6, and the third direction is perpendicular to the first direction and the second direction.

Among the above-mentioned technical scheme, the ratio of the width of second joint portion and the width of fixed band body is greater than 0.6, effectively guarantees the connection stability of second joint portion and fixed band body to effectively improve the stability of second joint portion to the limiting displacement of fixed band body.

According to some embodiments of the present application, the fixing band further comprises: the feed liquor mass flow body is provided with the inlet, and the feed liquor mass flow body is connected in the one end of fixed band body and is just communicated with the fixed band body.

Among the above-mentioned technical scheme, the fixed band is provided with the feed liquor mass flow body, is convenient for to this internal medium that lets in of fixed band, and the feed liquor mass flow body set up the fixed band body of being convenient for and the intercommunication that supplies the liquid end, and be convenient for can dismantle the maintenance to the fixed band to reduce the processing degree of difficulty of fixed band.

According to some embodiments of the present application, the fixing band further comprises: the liquid outlet current collector is provided with a liquid outlet and is connected to the other end of the fixing band body and communicated with the fixing band body.

Among the above-mentioned technical scheme, the fixed band sets up out the liquid mass flow body, is convenient for collect this internal medium of fixed band and with its discharge fixed band or realize the circulation flow of medium, and the maintenance can be dismantled to the fixed band to the setting of feed liquor mass flow body is convenient for to reduce the processing degree of difficulty of fixed band.

According to some embodiments of the present application, the fixing band body includes a plurality of media channels.

Among the above-mentioned technical scheme, the fixed band body includes a plurality of medium passageways, and a plurality of medium passageways play reposition of redundant personnel, the even flow effect to the medium for the medium can the even flow in the fixed band body, thereby improves the fixed band and carries out the homogeneity of temperature management to battery monomer.

In a second aspect, the present application further provides an electric device, including the battery according to any one of the above aspects, where the battery is used to provide electric energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present application;

fig. 2 is an isometric view of a battery provided by some embodiments of the present application;

figure 3 is an isometric view of a fastening strap provided in accordance with some embodiments of the present application;

fig. 4 is a partially enlarged view of a portion a shown in fig. 2;

FIG. 5 is a partial exploded view of the end plate and securing strap shown in FIG. 4;

figure 6 is an isometric view of a fastening strap provided in accordance with still further embodiments of the present application;

fig. 7 is a partially enlarged view of a portion B shown in fig. 6.

Icon: 1000-a vehicle; 100-a battery; 10-a battery cell; 20-an end plate; 21-flank; 22-a top surface; 23-a bottom surface; 24-a first snap groove; 25-a second snap groove; 30-fixing the belt; 31-fixing the belt body; 311-a first side wall; 312-a second sidewall; 313-a media channel; 32-a clip; 321-a first clamping part; 322-a second clamping part; 33-feeding a liquid current collector; 331-liquid inlet; 34-discharging a liquid current collector; 341-a liquid outlet; l1 — width of second snap-in part; l2 — width of first sidewall; 2200-a controller; 300-motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection and signal connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the embodiments of the present application, like reference numerals denote like parts, and a detailed description of the same parts is omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width and other dimensions of the various components in the embodiments of the present application and the overall thickness, length, width and other dimensions of the integrated device shown in the drawings are only exemplary and should not constitute any limitation to the present application.

In the present application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in a packaging manner: the cylindrical battery monomer, the square battery monomer and the soft package battery monomer are also not limited in the embodiment of the application.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, etc. The battery may include a case for enclosing one or more battery cells. The box can avoid liquid or other foreign matters to influence the charging or discharging of battery monomer.

The battery monomer comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive pole piece, a negative pole piece and an isolating membrane. The battery cell mainly depends on metal ions to move between the positive pole piece and the negative pole piece to work. The positive pole piece includes anodal mass flow body and anodal active substance layer, and anodal active substance layer coats in anodal mass flow body's surface, and the anodal mass flow body protrusion in the anodal mass flow body that has coated anodal active substance layer of uncoated anodal active substance layer, and the anodal mass flow body that does not coat anodal active substance layer is as anodal utmost point ear. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece comprises a negative pole current collector and a negative pole active substance layer, wherein the negative pole active substance layer is coated on the surface of the negative pole current collector, the negative pole current collector which is not coated with the negative pole active substance layer protrudes out of the negative pole current collector which is coated with the negative pole active substance layer, and the negative pole current collector which is not coated with the negative pole active substance layer is used as a negative pole lug. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the fuse is not fused when a large current is passed, the number of the positive electrode tabs is multiple and the positive electrode tabs are stacked together, and the number of the negative electrode tabs is multiple and the negative electrode tabs are stacked together. The material of the isolation film may be PP (polypropylene) or PE (polyethylene). In addition, the electrode assembly may have a winding structure or a lamination structure, and the embodiment of the present application is not limited thereto.

At present, the application of the power battery is more and more extensive from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanding.

In the development of battery technology, how to improve the assembly efficiency of the battery is a technical problem that needs to be solved urgently in the battery production technology.

The applicant analyzes and notices that in the production of batteries, fixing belts are mostly adopted to stabilize and limit the battery monomer group, in the process of assembling the batteries, the fixing belts are required to be wound on the periphery of the battery monomer group, and two ends of the fixing belts are mutually fixedly connected in a locking or welding mode and the like through locking parts; or the two ends of the fixing band are fixed on the end plates at the two ends of the battery monomer group in a locking or welding mode by adopting the locking pieces, and the end plates and the fixing band jointly play a limiting role in the battery monomer group. Because the installation of fixed band all needs to adopt modes such as retaining member lock to attach or welding to fix a position, so its installation procedure is complicated, intensity of labour is big, man-hour needs long, seriously influences the packaging efficiency of whole battery.

Based on the consideration, in order to effectively alleviate the problem that the battery assembly efficiency is influenced because too much man-hour is taken in the installation of fixed band, the applicant has designed a battery through the research, with the both ends of fixed band respectively with two end plate joint, restriction two end plates remove along the direction that deviates from each other to the battery monomer that range in between two end plates to the lamination plays spacing, fastening effect.

By adopting the battery with the structure, the two ends of the fixing band are connected with the end plate in a clamping manner, and compared with the conventional connecting manners such as welding or locking, the connecting operation difficulty and working hours can be effectively reduced, so that the connecting efficiency of the fixing band and the end plate is effectively improved, and the assembling efficiency of the battery is effectively improved.

Meanwhile, compared with a battery adopting a winding type fixing belt structure, the fixing belt of the battery is low in space occupancy rate, and therefore the energy density of the whole battery is improved.

The battery disclosed in the embodiment of the application can be used in electric equipment such as vehicles, ships or aircrafts but not limited thereto, and the battery disclosed in the embodiment of the application can be used for forming a power supply system of the electric equipment, so that the service life and the use performance of the battery can be effectively prolonged.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like.

The battery described in the embodiments of the present application is not limited to be applied to the above-described electric devices, but may be applied to all electric devices using the battery, but for brevity of description, the following embodiments take one electric device of an embodiment of the present application as an example of a vehicle.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present disclosure. The vehicle 1000 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or a range-extended automobile, etc. The battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, and for example, the battery 100 may serve as an operation power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to supply power to the motor 300, for example, for starting, navigation, and operational power requirements while the vehicle 1000 is traveling.

In some other embodiments, the battery 100 may be used not only as an operating power source of the vehicle 1000, but also as a driving power source of the vehicle 1000, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1000.

Here, the battery 100 referred to in the embodiments of the present application refers to a single physical module including one or more battery cells 10 to provide higher voltage and capacity. The plurality of battery cells 10 may be connected in series, in parallel, or in series-parallel to directly form the battery 100, where the series-parallel connection refers to that the plurality of battery cells 10 are connected in series or in parallel. The plurality of battery cells 10 may also be connected in series, in parallel, or in series-parallel to form a battery cell group, and the plurality of battery cell 10 groups are then connected in series, in parallel, or in series-parallel to form the battery 100.

Referring to fig. 2-5, fig. 2 is an isometric view of a battery provided in accordance with some embodiments of the present application; FIG. 3 is an isometric view of a fastening strap provided in accordance with some embodiments of the present application; fig. 4 is a partially enlarged view of a portion a shown in fig. 2; fig. 5 is a partial exploded view of the end plate and securing strap shown in fig. 4. The battery 100 provided by some embodiments of the present application includes two end plates 20 arranged at an interval along a first direction, and a fixing band 30 and a plurality of battery cells 10, wherein the plurality of battery cells 10 are arranged between the two end plates 20 in a stacked manner, and two ends of the fixing band 30 are respectively clamped with the two end plates 20 to limit the two end plates 20 from moving along directions away from each other.

The end plate 20 is used for clamping and limiting the plurality of battery cells 10 and has the mounting and bearing effects of the fixing band 30 and other components, the end plate 20 can adopt various implementation structures, for example, the end plate 20 can be a simple plate-shaped structure, and can also be a combined structure with reinforcing ribs or other structures and with a certain thickness, and the end plate 20 can also be made of various materials, for example, steel, iron, aluminum alloy and the like.

The plurality of battery cells 10 are disposed between the two end plates 20, wherein the plurality of battery cells 10 may be connected in series, in parallel, or in parallel to directly form the battery 100, and the parallel connection refers to both series connection and parallel connection among the plurality of battery cells 10. A plurality of battery cells 10 may also be connected in series, in parallel, or in series-parallel to form a battery module, and a plurality of battery modules may be connected in series, in parallel, or in series-parallel to form the battery 100.

Each battery cell 10 may be a lithium ion secondary battery or a lithium ion primary battery; but is not limited to, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, or a magnesium ion battery. The battery cell 10 may be cylindrical, flat, rectangular parallelepiped, or other shape.

The fixing band 30 may be an integrally formed structure or may be formed by splicing a plurality of split structures, the fixing band 30 may be made of a metal material with good tensile and deformation resistance, such as steel, of course, the fixing band 30 may also be made of other materials, and the embodiment of the present application is not limited thereto.

Specifically, as shown in fig. 2, the two end plates 20 are spaced apart from each other in the first direction X, the plurality of battery cells 10 are stacked and arranged between the two end plates 20 in the first direction X, and the two ends of the fixing band 30 are opposite ends of the fixing band 30 in the first direction X.

The two ends of the fixing band 30 are connected with the end plate 20 in a clamping manner, and compared with the conventional connection manner such as welding or locking, the connection operation difficulty and the connection working hour requirement can be effectively reduced, so that the connection efficiency of the fixing band 30 and the end plate 20 is effectively improved, and the assembly efficiency of the battery 100 is effectively improved; meanwhile, compared with the battery 100 adopting the winding type fixing belt 30 structure, the space occupancy rate of the fixing belt 30 of the battery 100 is low, thereby being beneficial to improving the energy density of the whole battery 100.

In some embodiments, as shown in fig. 3, the fixing band 30 includes a fixing band body 31 and a clamping member 32, the fixing band body 31 extends along a first direction, the clamping member 32 is connected to both ends of the fixing band body 31, and the clamping member 32 is used for clamping with the end plate 20.

Specifically, the fixed band body 31 extends along first direction X, and the joint 32 is connected in the opposite both ends of fixed band body 31 along first direction X, that is to say, the extending direction of fixed band body 31 is along first direction X, and the both ends on the extending direction of fixed band body 31 all are provided with joint 32, and the joint 32 at the both ends of fixed band body 31 corresponds the joint with two end plates 20.

The fixing band body 31 and the fastening member 32 may be integrally formed, or may be separately formed and connected to each other by welding, fastening, or the like.

The snap-in member 32 can take a variety of embodiments, such as: a clamping head can be arranged at the end part of the fixing belt body 31, a clamping groove is arranged on the end plate 20, two opposite groove walls of the clamping groove are provided with elastic clamping parts, the elastic clamping parts are configured to allow the clamping head to be inserted into the clamping groove in a one-way motion and limit the clamping head to move reversely to pull out the clamping groove, when the fixing belt is assembled, the clamping head is inserted into the clamping groove, the elastic clamping parts limit the clamping head to move reversely to withdraw from the clamping groove, so that the fixing belt 30 is clamped between the two end plates 20, and the fixing belt 30 plays a limiting role in limiting the two end plates 20; or, can set up the dop at the tip of fixed band body 31, set up elasticity joint portion on the dop, set up the draw-in groove on the end plate 20, elasticity joint portion is configured to allow dop unidirectional motion to insert the draw-in groove, and restriction dop reverse motion extracts the draw-in groove, when the equipment, inserts the draw-in groove with the dop, elasticity joint portion restriction dop reverse movement withdraws from the draw-in groove, thereby make fixed band 30 joint between two end plates 20, fixed band 30 plays limiting displacement to two end plates 20.

The both ends of fixed band body 31 set up joint spare 32, and the joint is realized through the joint spare 32 that sets up at the both ends of fixed band body 31 to fixed band 30 and two end plates 20 of being convenient for.

According to some embodiments of the present application, as shown in fig. 2, the clamping member 32 includes a first clamping portion 321 and a second clamping portion 322, the first clamping portion 321 and the fixing band body 31 are disposed at an interval along a second direction, and the second direction is perpendicular to the first direction. The second engaging portion 322 connects the fixing band body 31 and the first engaging portion 321.

Specifically, the fixing band body 31 extends along the first direction X, and the first engaging portion 321 and the fixing band body 31 are disposed at an interval along the second direction Y.

The first engaging portion 321 and the second engaging portion 322 may be of a conventional structure such as a plate shape and a column shape, or may be of a special-shaped structure, and the first engaging portion 321 and the second engaging portion 322 may have the same or different structures. For example, each of the first and second clamping portions 321 and 322 may have a plate-shaped structure.

It can be understood that the extending direction of the first engaging portion 321 and the extending direction of the fixing band body 31 may be parallel or crossed, and the second engaging portion 322 and the fixing band body 31 may or may not be perpendicular to each other. The first clamping portion 321 and the second clamping portion 322 can be integrally formed or welded, and the second clamping portion 322 can be connected to one end of the first clamping portion 321 or between two ends of the first clamping portion 321.

Joint spare 32 includes first joint portion 321 and second joint portion 322, second joint portion 322 can effectively restrict fixed band body 31 and remove along the first direction, first joint portion 321 plays the restriction effect to the atress moving direction of second joint portion 322, restriction second joint portion 322 atress removes along the second direction, first joint portion 321 and second joint portion 322 combine each other, avoid fixed band 30 to break away from end plate 20 along the second direction when effectively avoiding fixed band 30 atress to remove along the first direction, thereby effectively guarantee the stability of fixed band 30 and end plate 20 joint.

According to some embodiments of the present application, please continue to refer to fig. 3, the first clamping portion 321 and the second clamping portion 322 form a T-shaped structure.

That is, the extending direction of the first engaging portion 321 and the extending direction of the second engaging portion 322 are perpendicular to each other, and the second engaging portion 322 is connected between two ends of the first engaging portion 321.

It can be understood that the second engaging portion 322 can be perpendicular to the first engaging portion 321 and the fixing band body 31, and can also be perpendicular to the first engaging portion 321 and not perpendicular to the extending direction of the fixing band body 31. Illustratively, as shown in fig. 3, the first clamping portion 321 extends along the first direction X, and the second clamping portion 322 is perpendicular to the first clamping portion 321 and the fixing band body 31.

First joint portion 321 and second joint portion 322 form T type structure, and first joint portion 321 is more balanced to the limiting displacement of second joint portion 322, further reduces the risk that second joint portion 322 atress is deviate from.

According to some embodiments of the present disclosure, referring to fig. 4 and fig. 5, the end plate 20 is provided with a first engaging groove 24 and a second engaging groove 25 which are communicated with each other, the first engaging groove 24 is used for inserting the first engaging portion 321, and the second engaging groove 25 is used for inserting the second engaging portion 322.

The shape of the first catching groove 24 may be adapted to the shape of the first catching portion 321, and the shape of the second catching groove 25 may be adapted to the shape of the second catching portion 322.

The positions of the first fastening groove 24 and the second fastening groove 25 on the end plate 20 may be determined according to the second direction Y relative to the end plate 20, for example, if the second direction extends along the height direction of the end plate 20, the fixing band body 31 may be installed on the top surface 22 or the bottom surface 23 of the height direction of the end plate 20, and the first fastening groove and the second fastening groove may be disposed on the lateral surface 21 of the width direction of the end plate 20; if the second direction extends in the width direction of the end plate 20, the fixing band body 31 may be located at the side surface 21 of the end plate 20, and the first and second catching grooves may displace the top surface 22 or the bottom surface 23 in the height direction of the end plate 20.

First joint portion 321 inserts first joint groove 24, first joint groove 24 plays spacing joint effect to first joint portion 321, second joint portion 322 inserts second joint groove 25, second joint groove 25 plays limiting displacement to second joint portion 322, first joint groove 24 and second joint groove 25 mutually support, it is spacing on end plate 20 with the stable inlay card of joint spare 32, realize the stable joint of end plate 20 and fixed band 30, moreover, the steam generator is simple in structure and convenient to process, the joint performance is stable.

According to some embodiments of the present application, with continued reference to fig. 4 and 5, the end plate 20 includes two side surfaces 21 opposite to each other in a width direction of the end plate 20, and a top surface 22 and a bottom surface 23 opposite to each other in a height direction of the end plate 20, and the fixing band body 31 faces the side surfaces 21; the first clamping groove 24 and the second clamping groove 25 are both arranged on the top surface 22, or the first clamping groove 24 and the second clamping groove 25 are both arranged on the bottom surface 23; wherein, one end of the second clamping groove 25 is communicated with the first clamping groove 24, and the other end extends to the side surface 21.

Specifically, the width direction of the end plate 20 extends along the second direction Y, the height direction of the end plate 20 extends along the third direction Z, the fixing band body 31 faces the side surface 21, and the first engaging portion 321 and the fixing band body 31 are disposed at intervals along the second direction Y.

The first clamping groove 24 and the second clamping groove 25 can be both arranged on the top surface 22 of the end plate 20, and the first clamping groove 24 and the second clamping groove 25 can extend to a certain depth along the height direction Z of the end plate 20 towards the bottom surface 23 of the end plate 20; of course, the first engaging groove 24 and the second engaging groove 25 may be disposed on the bottom surface 23 of the end plate 20, and the first engaging groove 24 and the second engaging groove 25 may extend to a certain depth along the height direction Z of the end plate 20 toward the top surface 22 of the end plate 20.

The second joint groove 25 corresponds to the second joint portion 322, one end of the second joint groove 25 is communicated with the first joint groove 24, and the other end extends to the side 21, so that the second joint portion 322 connected with the fixing band body 31 and the first joint portion 321 is conveniently accommodated.

Fixed band body 31 sets up to be spacing to two end plates 20 in the side 21 of end plate 20, avoids occupying battery 100 top or bottom space to avoid interfering with the part or other adapting unit that converge of battery 100, first slot and second slot set up at the top surface 22 or the bottom surface 23 of end plate 20, are convenient for correspond the first slot of inserting and the second slot with joint spare 32 along the direction of height of end plate 20, the block installation of joint spare 32 and end plate 20 of being convenient for.

According to some embodiments of the present application, referring to fig. 2 again, a plurality of fixing bands 30 are disposed, and the plurality of fixing bands 30 are disposed on two opposite sides of the width direction of the end plate 20.

The fixing bands 30 are provided in plural, that is, the fixing bands 30 may be provided with two, three, four or more, the number of the fixing bands 30 may be odd or even, the fixing bands 30 may be equal in number and the positions thereof are corresponding to each other on opposite sides of the width direction of the end plate 20, and the fixing bands 30 may be unequal in number and the positions thereof are not corresponding to each other on opposite sides of the width direction of the end plate 20. For example, the fixing bands 30 may be provided in two, and the two fixing bands 30 are distributed on opposite sides of the width direction of the end plate 20.

Set up a plurality of fixed bands 30 and distribute in the width direction's of end plate 20 both sides, be favorable to improving end plate 20 atress equilibrium to further improve end plate 20 and fixed band 30 to the spacing stability of a plurality of battery monomer 10.

According to some embodiments of the present application, the fixing band body 31 has a tubular shape, and the fixing band body 31 is used for accommodating a medium to regulate the temperature of the battery cell 10.

That is, the fixing band body 31 may have a function of a thermal management member for accommodating a medium to regulate the temperature of the battery cell 10 so that the battery 100 is within an appropriate temperature range, ensuring high safety. The medium may be a fluid (liquid) or a gas, and the temperature adjustment refers to heating or cooling of the plurality of battery cells 10, and the fluid may be referred to as a heat exchange medium. Alternatively, the fluid may be circulated to achieve better temperature regulation. Optionally, the fluid may be water, a mixture of water and glycol, air, or the like. For example, in the case of cooling or temperature reduction of the battery cells 10, the thermal management member is configured to accommodate a cooling fluid to reduce the temperature of the plurality of battery cells 10, and at this time, the thermal management member may also be referred to as a cooling member, a cooling system, a cooling plate, or the like, and the fluid accommodated therein may also be referred to as a cooling medium or a cooling fluid, and more specifically, may be referred to as a cooling liquid or a cooling gas. When the fluid contained in the thermal management member is cooling water, the thermal management member may also be referred to as a water-cooling plate, and the water-cooling plate contacts the battery cell 10 and can be used to reduce the temperature of the battery cell 10 so as to prevent the battery cell 10 from thermal runaway. Of course, in addition, the thermal management component may also be used for heating.

In this application embodiment, the fixing band body 31 is tubular, and then the fixing band body 31 can accommodate the cooling medium to cool down the battery cell 10, and also can accommodate the warming medium to heat up the battery cell 10, and this application embodiment is not limited to this.

Also, the tubular fixing band body 31 may have a circular tube shape, a hexahedral tube shape, an elliptic cylindrical tube shape, or the like. It is understood that when the fixing band body 31 is used for accommodating the medium to regulate the temperature of the battery cell 10, the fixing band body 31 may be made of aluminum, copper, or the like with good thermal conductivity.

The fixing band 30 is arranged to be of a tubular structure, so that the temperature of the single battery 10 can be adjusted by introducing media into the fixing band 30 conveniently, the fixing band 30 of the structure can manage the temperature of the single battery 10 when limiting the position of the single battery 10, and the function integration is strong.

Referring again to fig. 2, and with further reference to fig. 6, in accordance with further embodiments of the present application, fig. 6 is an isometric view of a fastening strap provided in accordance with yet further embodiments of the present application. The fixing band body 31 is flat tube-shaped and includes a first side wall 311 and a second side wall 312 that are opposite in the thickness direction of the fixing band body 31, the first side wall 311 facing the battery cell 10.

The fixing tape body 31 is in a flat tube shape, so that the fixing tape body 31 has a surface with a large area, and the first side wall 311 and the second side wall 312 are opposite to each other along the thickness direction thereof, so that the first side wall 311 and the second side wall 312 have a large surface area.

First lateral wall 311 is towards battery cell 10 for battery cell 10 can be relative with the great surface of fixed band body 31, is favorable to improving fixed band body 31 to battery cell 10's temperature regulation's active area, and then effectively improves the temperature management effect of fixed band 30 to battery cell 10.

According to some embodiments of the present application, the clamping member 32 includes a first clamping portion 321 and a second clamping portion 322, the first clamping portion 321 and the fixing band body 31 are disposed at an interval along a second direction, and the second direction is perpendicular to the first direction. The second clamping portion 322 connects the first sidewall 311 and the first clamping portion 321.

That is, based on the implementation form that "the fixing band body 31 is in a flat tube shape, and includes the first side wall 311 and the second side wall 312 opposite to each other along the thickness direction of the fixing band body 31, the first side wall 311 faces the battery cell 10", the clamping member 32 may include the first clamping portion 321 and the second clamping portion 322, and the implementation structure of the first clamping portion 321 and the second clamping portion 322 and the clamping manner of the first clamping portion 321 and the second clamping portion 322 and the end plate 20 may be the same as the above-described embodiment.

The second joint portion 322 of the joint member 32 connects the first side wall 311 and the first joint portion 321, and the connection area between the second joint portion 322 and the fixing band body 31 is effectively ensured, so that the connection stability between the fixing band body 31 and the joint member 32 is ensured.

According to some embodiments of the present application, as shown in fig. 6, a ratio of a width L1 of the second clamping portion to a width L2 of the first side wall along a third direction is D, which satisfies D ≧ 0.6, and the third direction is perpendicular to the first direction and the second direction.

Specifically, the first direction extends along the X direction shown in the drawing, the second direction extends along the Y direction shown in the drawing, the third direction extends along the Z direction shown in the drawing, the second catching portion 322 connects the first side wall 311, and the width directions of the second catching portion 322 and the first side wall 311 each extend along the third direction Z.

The width L1 of the second clip portion may be slightly smaller than the width L2 of the first side wall, or may be equal to or greater than the width L2 of the first side wall, and exemplarily, the width L2 of the first side wall is equal to the width L1 of the second clip portion.

The ratio of the width L1 of second joint portion and the width L2 of first lateral wall is greater than 0.6, can effectively guarantee the stability of being connected of second joint portion 322 and fixed band body 31 to effectively improve the force stability of fixed band body 31.

According to some embodiments of the present disclosure, please continue to refer to fig. 6, the fixing band 30 further includes a liquid inlet current collector 33, the liquid inlet current collector 33 is provided with a liquid inlet 331, and the liquid inlet current collector 33 is connected to one end of the fixing band body 31 and is communicated with the fixing band body 31.

The liquid inlet 331 is used for communicating with a liquid inlet pipeline, so that the liquid inlet current collector 33 introduces an external medium into the fixing band body 31, and the medium is transported into the fixing band body 31.

The feed liquor current collector 33 is convenient to be arranged and communicated with the fixing band body 31 and the feed liquor pipeline, the feed liquor current collector 33 can be a metal piece, a plastic piece and the like, and the feed liquor current collector 33 can be fixedly connected with the fixing band body 31 and can also be connected in a pluggable mode through a clamping structure.

The fixing band 30 is provided with the feed liquor current collector 33, is convenient for let in the medium in the fixing band body 31, and the feed liquor current collector 33 sets up the intercommunication of the fixing band body 31 of being convenient for and the confession liquid end, and is convenient for dismantle the maintenance to the fixing band 30 to reduce the processing degree of difficulty of fixing band 30.

According to some embodiments of the present application, please refer to fig. 6, the fixing band 30 further includes a liquid outlet current collector 34, the liquid outlet current collector 34 is provided with a liquid outlet 341, and the liquid outlet current collector 34 is connected to the other end of the fixing band body 31 and is communicated with the fixing band body 31.

The liquid outlet 341 is used for communicating with a liquid outlet pipe, so that the liquid outlet current collector 34 leads out the medium in the fixing band body 31 and discharges the medium out of the fixing band body 31.

With the same principle of the liquid inlet current collector 33, the liquid outlet current collector 34 is arranged to facilitate the communication between the fixing band body 31 and the liquid inlet pipeline, the liquid outlet current collector 34 can be a metal piece, a plastic piece and the like, and the liquid outlet current collector 34 can be fixedly connected with the fixing band body 31 and can also be connected in a pluggable manner through a clamping structure.

The fixing band 30 is provided with the liquid outlet current collector 34, so that the medium in the fixing band body 31 can be collected and discharged out of the fixing band 30 or the circulation flow of the medium can be realized, the liquid inlet current collector 33 is arranged so that the fixing band 30 can be disassembled for maintenance, and the processing difficulty of the fixing band 30 can be reduced.

Referring to fig. 6 and with further reference to fig. 7, fig. 7 is a partially enlarged view of portion B shown in fig. 6, according to some embodiments of the present disclosure, the fixing band body 31 includes a plurality of medium channels 313.

It is understood that the plurality of media channels 313 extend along the circulation direction of the media within the fixing band body 31, and the plurality of media channels 313 may be juxtaposed within the fixing band body 31 along the width direction of the fixing band body 31.

The fixing tape body 31 may include a first side wall 311 and a second side wall 312 opposite to each other in a thickness direction thereof, and a plurality of partition walls arranged at intervals in a width direction of the fixing tape body, one ends of the plurality of partition walls are connected to the first side wall 311, the other ends of the plurality of partition walls are connected to the second side wall 312, and the plurality of partition walls partition an inner cavity of the fixing tape body 31 into a plurality of medium channels 313 juxtaposed in the width direction of the fixing tape body 31.

The partition walls may be formed integrally with the fixing band body 31, or may be provided separately from the fixing band body 31 and connected thereto by welding, bonding, or the like.

For example, the fixing band body 31 and the partition wall are integrally formed, and the fixing band body 31 may use a harmonica tube.

The fixing band body 31 comprises a plurality of medium channels 313, and the medium channels 313 have the functions of shunting and homogenizing the medium, so that the medium can uniformly flow in the fixing band body 31, and the uniformity of temperature management of the fixing band 30 on the single battery 10 is improved.

Referring to fig. 2 to 7, in some embodiments, a battery 100 includes two end plates 20, a plurality of battery cells 10, and a fixing band 30, where the two end plates 20 are disposed at intervals along a first direction, and the plurality of battery cells 10 are stacked between the two end plates 20. The two ends of the fixing band 30 are engaged with the two end plates 20, respectively, to restrict the two end plates 20 from moving in directions away from each other.

Wherein, fixed band 30 includes fixed band body 31 and joint spare 32, and fixed band body 31 is flat tub of form to including the relative first lateral wall 311 of thickness direction and the second lateral wall 312 along fixed band body 31, first lateral wall 311 is towards battery cell 10, and fixed band body 31 is used for holding the temperature of medium in order to adjust battery cell 10.

The clamping member 32 includes a first clamping portion 321 and a second clamping portion 322, the first clamping portion 321 and the fixing band body 31 are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, and the second clamping portion 322 is connected with the first side wall 311 and the first clamping portion 321.

The end plate 20 includes two side surfaces 21 opposed in the width direction of the end plate 20, and a top surface 22 and a bottom surface 23 opposed to each other in the height direction of the end plate 20, the first side wall 311 facing the side surfaces 21.

The end plate 20 is provided with first joint groove 24 and second joint groove 25, and first joint groove 24 and second joint groove 25 all set up in the top surface 22 of end plate 20, and the one end and the first joint groove 24 intercommunication in second joint groove 25, the other end extend to side 21, and first joint groove 24 is used for supplying first joint portion 321 to insert, and second joint groove 25 is used for supplying second joint portion 322 to insert.

According to some embodiments of the present application, there is also provided an electric device, including the battery 100 according to any of the above aspects, wherein the battery 100 is used for providing electric energy for the electric device.

The electric device may be any one of the aforementioned apparatuses or systems using the battery 100.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (15)

1. A battery, comprising:

two end plates arranged at intervals along a first direction;

a plurality of battery cells stacked and arranged between the two end plates;

the fixed band, the both ends of fixed band respectively with two the end plate joint to the restriction is two the end plate removes along the direction that deviates from each other.

2. The battery according to claim 1, wherein the fixing band comprises a fixing band body and a clamping member, the fixing band body extends along the first direction, the clamping member is connected to two ends of the fixing band body, and the clamping member is used for clamping with the end plate.

3. The battery of claim 2, wherein the clip comprises:

the first clamping part and the fixing belt body are arranged at intervals along a second direction, and the second direction is vertical to the first direction;

the second joint portion is connected with the fixing band body and the first joint portion.

4. The battery of claim 3, wherein the first and second snap-fit portions form a T-shaped structure.

5. The battery of claim 3, wherein the end plate defines a first engaging groove and a second engaging groove that are communicated with each other, the first engaging groove is used for the first engaging portion to insert, and the second engaging groove is used for the second engaging portion to insert.

6. The battery according to claim 5, wherein the end plate includes two side surfaces opposing in a width direction of the end plate, and a top surface and a bottom surface opposing to each other in a height direction of the end plate, the fixing band body facing the side surfaces;

the first clamping groove and the second clamping groove are both arranged on the top surface, or the first clamping groove and the second clamping groove are both arranged on the bottom surface;

one end of the second clamping groove is communicated with the first clamping groove, and the other end of the second clamping groove extends to the side face.

7. The battery according to claim 6, wherein the fixing band is provided in plural, and the plural fixing bands are provided on opposite sides of the end plate in the width direction.

8. The battery according to any one of claims 2 to 7, wherein the fixing band body is tubular, and the fixing band body is used for containing a medium to regulate the temperature of the battery cell.

9. The battery according to claim 8, wherein the tape body is flat tube-shaped and includes first and second side walls opposed in a thickness direction of the tape body, the first side wall facing the battery cell.

10. The battery of claim 9, wherein the clip comprises:

the first clamping part and the fixing belt body are arranged at intervals along a second direction, and the second direction is vertical to the first direction;

and the second clamping part is connected with the first side wall and the first clamping part.

11. The battery of claim 10, wherein along a third direction, a ratio of a width of the second clamping portion to a width of the first side wall is D, and D is greater than or equal to 0.6, and the third direction is perpendicular to the first direction and the second direction.

12. The battery of claim 8, wherein the securing strap further comprises:

the feed liquor mass flow body is provided with the inlet, the feed liquor mass flow body connect in the one end of fixed band body and with fixed band body intercommunication.

13. The battery of claim 12, wherein the securing strap further comprises:

and the liquid outlet current collector is provided with a liquid outlet, and the liquid outlet current collector is connected to the other end of the fixing belt body and communicated with the fixing belt body.

14. The battery of claim 8, wherein the retention strap body includes a plurality of media channels.

15. An electrical device comprising a battery as claimed in any one of claims 1 to 14 for providing electrical energy.

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