CN218677490U - Power battery and electric equipment - Google Patents

Abstract

The application provides a power battery and power consumption equipment, relates to power battery technical field. The power battery includes: the wiring harness isolation assembly is provided with a wiring harness isolation plate, a circuit board and a bus bar, wherein the wiring harness isolation plate is provided with the circuit board and the bus bar, and the circuit board is connected with the bus bar; the battery units are provided with positive electrodes and negative electrodes, the circuit board is accommodated between the positive electrodes and the negative electrodes, and the positive electrodes and the negative electrodes are connected with the bus bar, so that after the two adjacent battery units are connected with each other, an output total electrode is formed. The circuit board and the bus bar are arranged on the wire harness isolation plate, the circuit board is connected with the bus bar, when the wire harness isolation assembly is connected with the single batteries, the bus bar is connected with the two adjacent single batteries, and the bus bar is located between the positive pole and the negative pole of the single batteries, so that the whole occupied space of the wire harness isolation assembly is reduced, and the energy density of the power battery is improved.

Description

Power battery and electric equipment

Technical Field

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

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 addition to improving the safety performance of batteries, the energy density of batteries is a considerable problem in the development of battery technology. Therefore, how to increase the energy density of the battery is an urgent technical problem to be solved in the battery technology.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide a power battery and consumer. The power battery has higher energy density.

In order to achieve the purpose, the following technical scheme is adopted in the application:

in a first aspect, the present application provides a power battery, comprising: the wiring harness isolation assembly is provided with a wiring harness isolation plate, a circuit board and a bus bar, wherein the wiring harness isolation plate is provided with the circuit board and the bus bar, and the circuit board is connected with the bus bar; the circuit board is accommodated between the positive electrode and the negative electrode, and the positive electrode and the negative electrode are connected with the bus bar, so that an output total electrode is formed after the adjacent two battery monomers are connected with each other.

In the process of the realization, the circuit board and the bus bar are arranged on the wire harness isolation plate, the circuit board is connected with the bus bar, when the wire harness isolation assembly is connected with the single battery, the bus bar is connected with the two adjacent single batteries, and then the bus bar is positioned between the anode and the cathode of the single battery, so that the whole occupied space of the wire harness isolation assembly is reduced, and the energy density of the power battery is favorably improved.

In some embodiments, one side of the wire harness isolation plate is provided with the circuit board and the bus bar, and the other side of the wire harness isolation plate is provided with a flat surface. Through setting up circuit board and busbar in the homonymy of pencil division board, and the opposite side of pencil division board sets to the burnishing surface for after busbar and battery monomer are connected, not only can reduce pencil isolation component's whole occupation space, also can avoid power battery to appear the condition of circuit board atress when piling up simultaneously, thereby avoided damaging the phenomenon emergence of circuit board.

In some embodiments, the busbar is provided as a flat surface. The bus bar is arranged to be a flat surface, so that after the bus bar is connected with the single battery, a space can be left between the positive electrode and the negative electrode of the single battery for the circuit board, and the manufacturing cost is saved.

In some embodiments, the wiring board is connected to the bus bar by a connector.

In some embodiments, the single battery is further provided with an explosion-proof valve, and the explosion-proof valve, the positive electrode and the negative electrode are located on the same side of the single battery, so that when the busbar is connected with the positive electrode and the negative electrode, the circuit board and/or the connecting piece partially shield the explosion-proof valve.

In the process of above-mentioned realization, explosion-proof valve, anodal and negative pole set up in the free homonymy of battery, and the circuit board sets up between anodal and negative pole, and circuit board and/or connecting piece can form to shelter from explosion-proof valve, and when battery monomer takes place the thermal runaway, explosion-proof valve can spout high temperature material and blow the circuit board to make the circuit board interrupt the sampling communication, play the effect that the thermal runaway information fed back to battery management system immediately.

In some embodiments, the battery cell further includes a battery upper cover, which is disposed on a side of the wire harness isolation plate away from the circuit board and is used for covering the wire harness isolation plate. Through setting up the battery upper cover in one side of pencil division board for after pencil isolation assembly is connected with battery monomer, the battery upper cover can cover it, has guaranteed the security of battery monomer in the use.

In some embodiments, the battery upper cover is bonded to the harness isolation plate and forms insulation from the harness isolation plate. Through bonding the battery upper cover on the wire harness isolation assembly, not only can save power battery's space, the later stage also can directly reveal the insulating film and inspect and analyze it.

In some embodiments, the battery cell further includes a battery frame having a receiving cavity configured to receive a number of the battery cells. Through setting up battery monomer in battery frame's the chamber that holds for a plurality of battery monomer connects the back through pencil isolation assembly, and this holistic structural strength can be guaranteed to battery frame, makes things convenient for power battery to pile up.

In some embodiments, the output bus bar is secured to the battery frame.

In a second aspect, the present application further provides an electric device, including the power battery as described in any one of the above.

Because the electric device provided in the second aspect of the present application includes the power battery described in the technical solution of the first aspect, all technical effects of the above embodiments are achieved, and are not described herein again.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed 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 a user of ordinary skill in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a power battery disclosed in an embodiment of the present application.

Fig. 2 is a schematic view of a partial structure of a power battery disclosed in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of connection between a bus bar and a battery cell of a power battery disclosed in an embodiment of the present application.

Fig. 4 is a front view of a busbar of a power battery connected with a battery cell, which is disclosed in an embodiment of the present application.

Fig. 5 is a schematic structural diagram of connection between a bus bar and a circuit board of a power battery disclosed in an embodiment of the present application.

Fig. 6 is a front view of a harness isolation assembly for a power battery as disclosed in an embodiment of the present application.

Fig. 7 is a rear view of a harness spacer assembly for a power battery as disclosed in an embodiment of the present application.

Reference numerals

100. A power cell; 101. a harness isolation assembly; 1011. a wire harness isolation plate; 1012. a circuit board; 1013. a bus bar; 1014. outputting a total positive electrode; 1015. outputting a total negative electrode; 1016. a connecting member; 102. a battery cell; 1021. an explosion-proof valve; 103. an upper cover of the battery; 104. a battery frame.

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 obtained by a user of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to a user of ordinary skill in the art.

Examples

The battery wiring harness isolation assembly (CCS) is an electrical component responsible for voltage and temperature signal acquisition of battery monomers in high-voltage series-parallel connection and low-voltage communication among the battery monomers, and comprises wiring harness isolation plates (PC + ABS materials are abundant), wiring harness components (the common energy storage is a traditional wiring harness, a passenger car considers the space to be a PCB-printed circuit board-hard board or FPC-flexible circuit board), a high-voltage bus bar (aluminum bar), a high-voltage output electrode (aluminum bar or copper bar) and the like. Because the FPC is widely applied, for example, in various packaging forms of lithium ion batteries, the battery wiring harness isolation assembly is arranged with a battery pole facing upwards, and the wiring harness isolation assembly of the type is a wiring harness isolation plate-high-voltage bus-FPC-upper cover from the height level, and occupies a space of about 5-10 mm in total.

The prior art scheme has the following defects: firstly, the influence of the height of the battery wire harness isolation assembly of 5-10 mm on the volume utilization rate of battery integration is large, and the thickness of the battery wire harness isolation assembly needs to be further reduced; secondly, due to the layering of the wiring harness isolation plate, the high-voltage bus bar, the FPC and the upper cover, the upper cover needs to adopt an injection molding or plastic uptake process, the processing cost is high, the space is occupied, if the PET film gum is adopted as the upper cover, the upper cover can not be firmly adhered (due to uneven adhering surface) and the later maintenance can not be checked (due to the fact that the FPC is adhered by the PET film upper cover, the FPC is torn and damaged when the PET film upper cover is uncovered); thirdly, when modules or modules (modules are directly stacked in a battery pack box body without modularization) are stacked and assembled, metal particles can splash when the busbars are welded, foreign matters are pinched into the FPC level, so that insulating layers are abraded in subsequent use, and the potential safety hazard of short circuit is caused; and fourthly, the FPC is exposed in the assembling and transporting processes, and the possibility of positive pressing by external force exists, so that precise circuits and electric devices on the FPC are damaged.

In view of this, as shown in fig. 1-2, in a first aspect, the present application provides a power battery 100, where the power battery 100 may be a battery pack or a battery module, and the power battery 100 includes: the wire harness isolation assembly 101 is connected with the battery cell 102, one side, far away from the battery cell 102, of the wire harness isolation assembly 101 is flat, and a circuit board 1012 of the wire harness isolation assembly 101 is located between a positive pole and a negative pole of the battery cell 102, so that the occupied space of the wire harness isolation assembly 101 is reduced.

Specifically, the wire harness isolation assembly 101 includes a wire harness isolation plate 1011, a wiring board 1012 and a bus bar 1013, wherein the wiring board 1012 and the bus bar 1013 are provided on the wire harness isolation plate 1011, and the wiring board 1012 is connected to the bus bar 1013; the plurality of battery cells 102 are provided with a positive electrode and a negative electrode, the circuit board 1012 is accommodated between the positive electrode and the negative electrode, and the positive electrode and the negative electrode are both connected to the bus bar 1013, so that an output total electrode is formed after two adjacent battery cells 102 are connected to each other.

Illustratively, the circuit board 1012 and the bus bar 1013 are fixed by welding, so that when the bus bar 1013 is connected with the battery cells 102, information such as voltage and temperature of the battery cells 102 can be collected; it can be understood that the wire harness isolation assembly 101 may be connected to the upper end of the battery cell 102, or may be disposed at the left end or the right end, that is, the positive electrode and the negative electrode may be disposed at the upper end, the left end, the right end, or the like of the battery cell 102, and both the positive electrode and the negative electrode are protruded on the surface of the battery cell 102, so that after the bus bar 1013 is connected to the battery cell 102, the circuit board 1012 is located between the positive electrode and the negative electrode, and the height of the circuit board 1012 is not higher than the height of the positive electrode or the negative electrode.

The inventor finds that, in the design process, when the bus bar 1013 is welded on the battery cell 102, a height gap exists between the two bus bars, the height gap is composed of two parts, the first part is composed of the heights of the positive electrode and the negative electrode of the battery cell 102, and the heights of the positive electrode and the negative electrode are generally 2-3 mm; the second part is formed by the thickness of the bus bar 1013, the thickness of the bus bar 1013 is generally 1 to 3mm, so that the height gap after the bus bar 1013 is connected to the battery cell 102 is 3 to 6mm, and when the distance between the positive electrode and the negative electrode of the battery cell 102 exceeds 50mm, the circuit board 1012 can be considered to be arranged in the height gap.

It should be noted that the output total pole includes an output total positive pole 1014 and an output total negative pole 1015, that is, a plurality of battery cells 102 are connected by the bus bar 1013 to form a battery pack, and the battery pack is charged and discharged by the output total positive pole 1014 and the output total negative pole 1015 to realize power supply of the battery pack.

In this application, the battery cell 102 may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, a magnesium ion battery cell, and the like, which is not limited in this application.

The battery cell 102 includes an electrode assembly including a positive electrode tab, a negative electrode tab, and a separator, and an electrolyte. The battery cell 102 operates primarily by virtue of metal ions moving between the positive and negative pole pieces. The positive pole piece comprises a positive current collector and a positive active substance layer, and the positive active substance layer is coated on the surface of the positive current collector; the positive current collector comprises a positive current collecting part and a positive electrode lug protruding out of the positive current collecting part, the positive current collecting part is coated with a positive active substance layer, and at least part of the positive electrode lug is not coated with the positive active substance layer. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, the positive electrode active material layer includes a positive electrode active material, 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, and the negative pole active substance layer is coated on the surface of the negative pole current collector; the negative current collector comprises a negative current collecting part and a negative electrode lug protruding out of the negative current collecting part, the negative current collecting part is coated with a negative electrode active substance layer, and at least part of the negative electrode lug is not coated with the negative electrode active substance layer. The material of the negative electrode current collector may be copper, the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material may be carbon, silicon, or the like. The material of the spacer may be PP (polypropylene) or PE (polyethylene).

Illustratively, the electrode assembly includes a positive electrode tab, a negative electrode tab, and a separator for separating the positive electrode tab and the negative electrode tab. The polarity of the positive plate is opposite to that of the negative plate. The positive plate, the negative plate and the isolating piece are all of a belt-shaped structure, and the positive plate, the negative plate and the isolating piece are wound into a whole and form a winding structure. The coiled structure may be a cylindrical structure, a flat structure, or other shaped structure. From the appearance of the electrode assembly, the electrode assembly comprises a main body part, a positive electrode tab and a negative electrode tab, wherein the positive electrode tab and the negative electrode tab protrude out of the main body part. The positive electrode tab is a portion of the positive electrode sheet that is not coated with the active material layer, and the negative electrode tab is a portion of the negative electrode sheet that is not coated with the active material layer. The positive tab and the negative tab are used to draw out current in the main body portion.

Optionally, the positive tab is wound around a central axis of the electrode assembly in a plurality of turns, the positive tab comprising a plurality of turns of the tab layer. After the winding is finished, the positive pole lug is in a cylindrical shape, and a gap is reserved between two adjacent circles of pole lug layers. The embodiment of the application can treat the positive tab to reduce the gap between tab layers, so that the positive tab is connected with other conductive structures conveniently. For example, the embodiment of the application can perform the flattening treatment on the positive tab so as to lead the end part area of the positive tab far away from the main body part to be gathered and gathered together; and a compact end face is formed at one end of the positive tab, which is far away from the main body part, so that the gap between tab layers is reduced, and the positive tab is conveniently connected with other conductive structures. Alternatively, the embodiment of the application can also fill a conductive material between two adjacent circles of tab layers to reduce the gap between the tab layers.

Alternatively, the negative electrode tab is wound around the central axis of the electrode assembly in a plurality of turns, and the negative electrode includes a plurality of tab layers. Illustratively, the negative electrode tabs are also subjected to a flattening process to reduce gaps between the tab layers of the negative electrode tabs.

In the implementation process, the circuit board 1012 and the bus bar 1013 are both disposed on the wire harness isolation plate 1011, the circuit board 1012 is connected to the bus bar 1013, and when the wire harness isolation assembly 101 is connected to the battery cells 102, the bus bar 1013 is connected to two adjacent battery cells 102, so that the bus bar 1013 is located between the positive electrode and the negative electrode of the battery cells 102, thereby reducing the overall occupied space of the wire harness isolation assembly 101 and facilitating improvement of the energy density of the power battery 100.

As shown in fig. 2, the wiring board 1012 and the bus bar 1013 are disposed on one side of the wiring harness isolation plate 1011, and the other side is a flat surface, that is, the side of the wiring harness isolation plate 1011 away from the wiring board 1012 is disposed horizontally, and the bus bar 1013 is not protruded on the other side of the wiring harness isolation plate 1011, so as to ensure that the wiring harness isolation assembly 101 can be well attached to the upper cover of the battery cell 102 when the wiring harness isolation assembly 101 is disposed thereon. By arranging the circuit board 1012 and the bus bar 1013 at the same side of the wire harness isolation plate 1011 and arranging the other side of the wire harness isolation plate 1011 to be a flat surface, after the bus bar 1013 is connected with the battery cell 102, the whole occupied space of the wire harness isolation assembly 101 can be reduced, and meanwhile, the situation that the circuit board 1012 is stressed when the power battery 100 is stacked can be avoided, so that the phenomenon that the circuit board 1012 is damaged is avoided.

As shown in fig. 3-4, the bus bar 1013 is configured to be a flat surface, that is, the bus bar 1013 is configured to be a horizontal shape, whereas for the conventional bus bar 1013, in order to take account of vibration buffering of the battery pack during use, it generally needs to be designed to be arched upwards or downwards, that is, the bus bar 1013 is arched upwards or downwards, which occupies an internal space of the battery pack, but in practice, when the thickness of the bus bar 1013 is greater than 1.5mm, due to limited space, the arched camber of the bus bar 1013 is too small, the overall strength of the bus bar 1013 is great, and the buffering action chance is zero, so the bus bar 1013 in this application directly cancels the arched design, and by configuring the bus bar 1013 to be a flat surface, after the bus bar 1013 is connected with the battery cell 102, it is possible to both make a space between the positive electrode and the negative electrode of the battery cell 102 for the circuit board 1012 to be disposed, and save manufacturing cost, and, while when the upper cover of the power battery 100 is connected with the harness isolation assembly 101, it can provide a flat surface for the upper cover.

As shown in fig. 5-7, the wiring board 1012 is connected to the bus 1013 via a connector 1016. Illustratively, the connecting member 1016 includes, but is not limited to, a nickel sheet disposed between the circuit board 1012 and the bus bar 1013 to form a connection between the circuit board 1012 and the bus bar 1013, so that when the bus bar 1013 is connected to the battery cells 102, information such as voltage and temperature of the battery cells 102 can be collected.

Referring to fig. 5 again, the battery cell 102 is further provided with an explosion-proof valve 1021, and the explosion-proof valve 1021, the positive electrode and the negative electrode are located at the same side of the battery cell 102, so that when the bus bar 1013 is connected to the positive electrode and the negative electrode, the circuit board 1012 and/or the connecting member 1016 partially shield the explosion-proof valve 1021. For example, the explosion-proof valve 1021, the positive electrode and the negative electrode are disposed at the upper end of the battery cell 102, and since the height of the circuit board 1012 is not higher than the height of the positive electrode or the negative electrode, when the bus bar 1013 is connected to the positive electrode and/or the negative electrode, the circuit board 1012 and the connecting member 1016 are both located above the explosion-proof valve 1021; it can be understood that several battery cells 102 can be stacked in the left-right direction, and the explosion-proof valves 1021 at the leftmost side and the rightmost side are not covered by the end of the circuit board 1012, and since the connecting member 1016 between the circuit board 1012 and the bus bar 1013 is located above the explosion-proof valve 1021 at the position, when thermal runaway occurs in the battery cell 102 at the position, a high-temperature substance can be ejected through the explosion-proof valve 1021, and the connecting member 1016 at the position is fused, so as to feed back to the battery management system.

In the implementation process, the explosion-proof valve 1021, the positive electrode and the negative electrode are arranged on the same side of the single battery 102, the circuit board 1012 is arranged between the positive electrode and the negative electrode, the circuit board 1012 and/or the connecting piece 1016 can shield the explosion-proof valve 1021, when the single battery 102 is out of control due to heat, the explosion-proof valve 1021 can eject high-temperature substances to blow the circuit board 1012, so that the circuit board 1012 interrupts sampling communication, the effect of immediately feeding back thermal control information to the battery management system is achieved, an instant response signal is provided for the single battery 102 due to thermal control, and further strategy guidelines of the battery management system are supported.

Referring to fig. 1 again, the battery cell 102 further includes a battery cover 103, and the battery cover 103 is disposed on a side of the harness isolation board 1011 away from the circuit board 1012 and is used for covering the harness isolation board 1011. Through setting up battery upper cover 103 in the one side of pencil division board 1011 for after pencil isolation component 101 is connected with battery monomer 102, battery upper cover 103 can cover it, has guaranteed the security of battery monomer 102 in the use.

In some embodiments, the battery upper cover 103 is bonded to the wire harness isolation plate 1011, and is insulated from the wire harness isolation plate 1011, that is, the battery upper cover 103 can adopt the insulating film gum (PET or PC material, etc.) to directly stick and be insulated, and it needs to be injection-molded or plastic uptake process processing for the conventional upper cover, and because in this application the wire harness isolation plate 1011 and the busbar 1013 are made into flat surfaces, so that the battery upper cover 103 is connected to the wire harness isolation plate 1011, not only the space of the power battery 100 can be saved, the insulating film can also be directly uncovered in the later stage to check and analyze the insulating film, when the insulating film is damaged, only need to be replaced, and the whole working process is convenient and fast.

Referring to fig. 1-2 again, the battery cells 102 further include a battery frame 104, and the battery frame 104 has a receiving cavity configured to receive a plurality of the battery cells 102. Through setting up battery cell 102 in the chamber that holds of battery frame 104 for after a plurality of battery cell 102 connects through pencil isolation component 101, this holistic structural strength can be guaranteed to battery frame 104, makes things convenient for power battery 100 to pile up.

In some embodiments, the output bus-bar (which may be a copper bar or an aluminum bar) is fixed on the battery frame 104, that is, the output bus-bar positive electrode 1014 and the output bus negative electrode 1015 are both connected to the battery frame 104, and the output bus positive electrode 1014 and the output bus negative electrode 1015 may be disposed opposite to each other.

In a second aspect, the present application also provides an electric device, including the power battery 100 as described in any one of the above. The electric device can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool and the like. The vehicle can be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like; spacecraft include aircraft, rockets, space shuttles, and spacecraft, among others; electric toys include stationary or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric airplane toys, and the like; the electric power tools include metal cutting electric power tools, grinding electric power tools, assembly electric power tools, and electric power tools for railways, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, electric impact drills, concrete vibrators, and electric planers. The embodiment of the present application does not particularly limit the above power utilization apparatus. Taking a vehicle as an example, the vehicle may further include a controller and a motor, the controller is used for controlling the power battery 100 to supply power to the motor, for example, for starting, navigating and working power demand during running of the vehicle.

Because the electric device provided in the second aspect of the present application includes the power battery 100 described in the technical solution of the first aspect, all technical effects of the above embodiments are achieved, and are not described herein again.

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 (10)

1. A power cell, comprising:

the wiring harness isolation assembly is provided with a wiring harness isolation plate, a circuit board and a bus bar, wherein the wiring harness isolation plate is provided with the circuit board and the bus bar, and the circuit board is connected with the bus bar;

the circuit board is accommodated between the positive electrode and the negative electrode, and the positive electrode and the negative electrode are connected with the bus bar, so that an output total electrode is formed after the adjacent two battery monomers are connected with each other.

2. The power battery according to claim 1, wherein the wiring harness isolation plate is provided with the circuit board and the bus bar on one side, and is provided with a flat surface on the other side.

3. The power cell of claim 1, wherein the buss bar is configured as a planar surface.

4. The power cell of claim 1, wherein a circuit board is connected to the buss bars by connectors.

5. The power battery according to claim 4, wherein the battery cell is further provided with an explosion-proof valve, and the explosion-proof valve, the positive electrode and the negative electrode are located on the same side of the battery cell, so that when the busbar is connected with the positive electrode and the negative electrode, the circuit board and/or the connecting piece partially shield the explosion-proof valve.

6. The power battery according to claim 1, wherein the battery cell further comprises a battery upper cover, and the battery upper cover is arranged on one side of the wiring harness isolation plate away from the circuit board and used for covering the wiring harness isolation plate.

7. The power battery according to claim 6, wherein the battery upper cover is bonded to the harness separator and insulated from the harness separator.

8. The power battery as recited in claim 6, wherein the battery cells further comprise a battery frame having a receiving cavity configured to receive a plurality of the battery cells.

9. The power cell of claim 8, wherein the output bus bar is secured to the cell frame.

10. An electric consumer, characterized in that it comprises a power cell according to any one of claims 1 to 9.

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