WO2023283945A1 - 电池和用电装置 - Google Patents

电池和用电装置 Download PDF

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Publication number
WO2023283945A1
WO2023283945A1 PCT/CN2021/106849 CN2021106849W WO2023283945A1 WO 2023283945 A1 WO2023283945 A1 WO 2023283945A1 CN 2021106849 W CN2021106849 W CN 2021106849W WO 2023283945 A1 WO2023283945 A1 WO 2023283945A1
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WO
WIPO (PCT)
Prior art keywords
battery
lead
connection
sensor
signal transmission
Prior art date
Application number
PCT/CN2021/106849
Other languages
English (en)
French (fr)
Inventor
王冲
陈其锋
钱木
孙占宇
Original Assignee
江苏时代新能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏时代新能源科技有限公司 filed Critical 江苏时代新能源科技有限公司
Priority to PCT/CN2021/106849 priority Critical patent/WO2023283945A1/zh
Priority to KR1020237004366A priority patent/KR20230035375A/ko
Priority to JP2023509571A priority patent/JP7534533B2/ja
Priority to EP21949728.6A priority patent/EP4178004A4/en
Publication of WO2023283945A1 publication Critical patent/WO2023283945A1/zh
Priority to US18/348,358 priority patent/US20230352751A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of batteries, in particular to a battery and an electrical device.
  • a temperature sensing structure for temperature acquisition is usually added to the battery to measure the temperature of the battery cells in the battery module.
  • the existing temperature-sensing structure is mainly fixed on the battery unit by dispensing glue, welding, etc., and the generality of the temperature-sensing structure is poor, and it is not maintainable.
  • the present application provides a battery and an electrical device, which can improve the versatility and maintainability of the temperature-sensing structure.
  • the first aspect of the present application provides a battery, comprising:
  • a temperature sensor for measuring the temperature of the battery cell
  • a sensor mounting component used to install the temperature sensor
  • the signal transmission part is used for electrically connecting with the temperature sensor to transmit the temperature signal of the battery cell, and the signal transmission part is detachably connected with the sensor installation assembly.
  • one side of the sensor installation assembly is provided with a connection port, and the sensor installation assembly and the signal transmission component are detachably connected at the connection port.
  • the sensor mounting assembly also includes:
  • a lead-out terminal is arranged at the connection port, and the lead-out terminal is used for connecting the temperature sensor and the signal transmission component.
  • one end of the lead-out terminal is connected to the temperature sensor, and the other end of the lead-out terminal has an elastic connection part, and the signal transmission component is inserted into the connection port and can be connected with the elastic connection part. Disconnect the connection.
  • the other end of the lead-out terminal is bent to form the elastic connection portion.
  • the other end of the lead-out terminal is bent toward the side of the lead-out terminal and keeps a preset distance from the side.
  • the sensor mounting assembly includes a first housing and a second housing connected to each other, the temperature sensor is disposed on the first housing, and the lead-out terminal and the connection port are disposed on the Describe the second housing.
  • the first housing and the second housing are detachably connected.
  • the sensor installation assembly further includes a heat conduction element for transmitting the temperature of the battery cell to the temperature sensor.
  • the first shell and/or the second shell are detachably connected to the heat conducting element.
  • the sensor mounting assembly includes at least two of the lead terminals, and the sensor mounting assembly further includes a partition for isolating adjacent lead terminals.
  • the signal transmission component includes a contact end and a transmission end connected to each other;
  • the contact end is used for contact connection with the lead-out terminal
  • the transmission end is used for transmitting the temperature signal of the battery unit.
  • the sensor installation assembly is detachably arranged on the battery unit.
  • one of the sensor installation assembly and the battery cell is provided with a clip, and the other is provided with a slot, and the clip is connected with the slot to realize the sensor installation assembly. and the detachable connection of the battery cells.
  • an electrical device comprising the battery of the above embodiment, where the battery is used to provide electrical energy.
  • the detachable connection between the signal transmission part and the sensor installation assembly facilitates the independent design, processing, maintenance and replacement of the signal transmission part and the sensor installation assembly.
  • the sensor mounting assembly can be directly disassembled from the battery cell, thereby improving the replaceability of the temperature sensor. compatibility, in order to facilitate battery maintenance and replacement of faulty equipment, reduce the cost of batteries, and reduce the probability of overall battery scrapping.
  • FIG. 1-A is a schematic structural diagram of an electrical device according to an embodiment of the present application.
  • FIG. 1-B is a schematic structural diagram of a battery according to an embodiment of the present application.
  • FIG. 1-C is a schematic structural diagram of a battery module according to an embodiment of the present application.
  • FIG. 1-D is a schematic structural diagram of a battery cell according to an embodiment of the present application.
  • Fig. 2 is a schematic diagram of assembly of a sensor installation assembly and a signal transmission component in a battery according to an embodiment of the present application.
  • Fig. 3 is an exploded view of the structure in Fig. 2 .
  • Fig. 4 is a detachable schematic diagram of the sensor installation assembly and the signal transmission part in Fig. 2 .
  • FIG. 5 is a side view of the structure in FIG. 2 .
  • Fig. 6 is another schematic diagram of assembly of the sensor installation assembly and the signal transmission part in the battery according to the embodiment of the present application.
  • Fig. 7 is a detachable schematic diagram of the sensor installation assembly and the signal transmission part in Fig. 6 .
  • Fig. 8 is an exploded view of the structure in Fig. 7 .
  • FIG. 9 is another schematic diagram of assembly of the sensor installation assembly and the signal transmission component in the battery according to the embodiment of the present application.
  • Fig. 10 is an exploded view of a sensor installation assembly and a signal transmission component in a battery according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a battery provided with a sensor mounting assembly and a signal transmission component according to an embodiment of the present application.
  • multiple means more than two (including two), and similarly, “multiple groups” means more than two (including two).
  • connection or “connection” of mechanical structures It may refer to a physical connection, for example, a physical connection may be a fixed connection, such as a fixed connection through a fixture, such as a fixed connection through screws, bolts or other fasteners; a physical connection may also be a detachable connection, such as Mutual clamping or clamping connection; the physical connection may also be an integral connection, for example, welding, bonding or integrally formed connection for connection.
  • connection or “connection” of the circuit structure may not only refer to a physical connection, but also an electrical connection or a signal connection, for example, it may be a direct connection, that is, a physical connection, or an indirect connection through at least one intermediate component, As long as the circuit is connected, it can also be the internal connection of two components; besides the signal connection through the circuit, the signal connection can also refer to the signal connection through the media medium, for example, radio waves.
  • the coordinate system in FIG. 1-D defines each orientation of the battery, and the x direction represents the length direction of the battery cell 400 , the y direction is perpendicular to the x direction in the horizontal plane, indicating the width direction of the battery cell 400 , and the z direction is perpendicular to the x direction and y direction, indicating the height direction of the battery.
  • the expressions of x direction, y direction and z direction described above are used to explain the operation and configuration of the various components of the battery in this embodiment. These indications are appropriate for the positions shown in the figures, but when these positions are changed, these directions shall be interpreted differently to correspond to the change.
  • a rechargeable battery can be called a secondary battery or a power battery.
  • the widely used rechargeable battery is a lithium battery, for example, a lithium-sulfur battery, a sodium-lithium-ion battery or a magnesium-ion battery, but not limited thereto.
  • rechargeable batteries may be collectively referred to as batteries herein.
  • the safety characteristics of the battery are an important characteristic of the battery, and it is necessary to ensure the safety of the battery as much as possible when using or charging.
  • the battery is generally composed of multiple battery cells connected and combined.
  • the battery cell When the battery cell has an external short circuit, overcharge, acupuncture, flat plate impact, etc., the battery cell is prone to thermal runaway due to overheating.
  • thermal runaway occurs, emissions will be generated inside the battery cell, including high-temperature smoke (open flames in severe cases) and volatilized high-temperature electrolytes. These emissions will undergo thermal diffusion during the discharge process. This will lead to thermal runaway of other battery cells, and even cause accidents such as battery explosion.
  • an effective solution is to set up a temperature sensing structure to monitor the temperature of the battery cell in real time, so as to prevent the battery cell from overheating When it is high or reaches the threshold, it will alarm and remind in time to reduce the probability of battery cell overheating.
  • the temperature-sensing structure is generally provided with a temperature-sensing chip, and the temperature-sensing chip is usually directly integrated into bus bars, voltage acquisition equipment, or thermal management pipelines by dispensing, welding, and structural fixing.
  • the above-mentioned connection method is a one-time connection method, which has no replaceability, poor versatility, and low quality and reliability. Once the temperature sensing chip fails within the life cycle, it is easy to cause the battery cell or even the entire battery to be scrapped, and even cause safety problems.
  • the temperature-sensing structure and signal transmission equipment are also designed in one piece. When a certain equipment is damaged, other equipment and even the battery are easily scrapped.
  • the present application provides a battery that changes the connection mode of the temperature sensing chip on the battery cell, and the connection mode of the temperature sensing chip and the signal transmission device, so as to improve the replaceability of the temperature sensing chip and the connection with the temperature sensing chip.
  • the replaceability and compatibility of the signal transmission equipment connected by the chip facilitates the maintenance of the battery and the replacement of the faulty equipment, reduces the cost of the battery, and reduces the probability of the battery being scrapped as a whole.
  • the batteries in the embodiments of the present application can be applied to various electric devices that can provide power sources with electric energy.
  • the electrical devices here can be, but are not limited to, electric vehicles, electric trains, electric bicycles, golf carts, drones or ships, etc.
  • the electric device may be a device powered only by a battery, or may be a hybrid device.
  • the battery provides electric energy for the electric device, and drives the electric device to travel through the motor.
  • FIG. 1-A it is a schematic structural diagram of an electric device according to an embodiment of the present application.
  • the electric device can be a car, and the car can be a fuel car, a gas car or a new energy car.
  • the new energy car can be It is a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • the car includes a battery 200 , a controller 210 and a motor 220 .
  • the battery 200 is used to supply power to the controller 210 and the motor 220 as the operating power and driving power of the car, for example, the battery 200 is used for starting, navigating and working power requirements during the running of the car.
  • the battery 200 supplies power to the controller 210, and the controller 210 controls the battery 200 to supply power to the motor 220.
  • the motor 220 receives and uses the power of the battery 200 as the driving power of the vehicle, replacing or partially replacing fuel oil or natural gas to provide driving power for the vehicle.
  • the battery 200 may include a plurality of battery modules electrically connected to each other. As shown in FIG. A battery module 300, wherein the first box body 201 and the second box body 202 are fastened together, and a plurality of battery modules 300 are arranged in the space enclosed by the first box body 201 and the second box body 202. In some embodiments, the first box body 201 and the second box body 202 are hermetically connected.
  • the battery module 300 includes a plurality of battery cells 400, and the plurality of battery cells 400 can be electrically connected in series, in parallel, or in parallel to achieve a larger current or voltage. Refers to the combination of series and parallel. For example, as shown in FIG.
  • the battery cells 400 can be placed vertically, the height direction of the battery cells 400 is consistent with the z direction, the length direction of the battery cells 400 is consistent with the x direction, and multiple battery cells 400 along the
  • the width direction is arranged side by side in the y direction; or, the battery cells 400 can be laid flat, the width direction of the battery cells 400 is consistent with the z direction, the length direction of the battery cells 400 is consistent with the x direction, and the multiple battery cells 400 are aligned along the z direction.
  • At least one layer can be stacked in the x direction, and each layer includes a plurality of battery cells 400 arranged at intervals along the x direction.
  • the battery cell 400 includes a casing 40, an electrode assembly 30, and an end cap assembly 10.
  • the end cap assembly 10 includes an end cover plate 10', and the end cover plate 10' is connected (for example, by welding) to the casing 40. ) form the casing of the battery cell 400, the electrode assembly 30 is disposed in the casing 40, and the casing 40 is filled with electrolyte.
  • the battery cell 400 may be in the shape of a cube, a cuboid or a cylinder.
  • the electrode assembly 30 can be set as a single one or multiple ones. As shown in FIG. 1-D , at least two independently wound electrode assemblies 30 can also be arranged in the battery.
  • the electrode assembly 30 may form a main body by winding or stacking a first pole piece, a second pole piece, and a separator between adjacent first pole pieces and second pole pieces, wherein the separator is between An insulator between adjacent first and second pole pieces.
  • the first pole piece is exemplarily described as a positive pole piece
  • the second pole piece is a negative pole piece for illustration.
  • the positive active material is coated on the coating area of the positive pole piece
  • the negative active material is coated on the coating area of the negative pole piece.
  • the electrode assembly 30 includes two tabs 301, namely a positive tab and a negative tab.
  • the positive tab extends from the coated area of the positive tab
  • the negative tab extends from the coated area of the negative tab.
  • the end cover assembly 10 is arranged on the top of the electrode assembly 30. As shown in FIG. 1-D, the end cover assembly 10 includes an end cover plate 10' and two electrode terminals 5. Each electrode terminal 5 is correspondingly provided with a connection member 20 , and the connection member 20 is located between the end cover plate 10 ′ and the electrode assembly 30 .
  • the tab 301 of the electrode assembly 30 is located at the top, the positive tab is connected to the positive terminal through a connecting member 20 , and the negative tab is connected to the negative terminal through another connecting member 20 .
  • the battery cell 400 may include two end cap assemblies 10 respectively disposed at two ends of the casing 40 , and each end cap assembly 10 is provided with an electrode terminal 5 .
  • An explosion-proof component can also be arranged on the end cover plate 10', and when the gas in the battery cell 400 is too much, the gas in the battery cell 400 is released in time to avoid explosion.
  • the end cover plate 10' is provided with an exhaust hole, and the exhaust hole can be located at the middle position of the end cover plate 10' along the length direction.
  • the explosion-proof component includes a pressure relief mechanism 6, which is arranged on the vent hole. Under normal conditions, the pressure relief mechanism 6 is sealed and installed on the vent hole. When the battery cell 400 expands, the air pressure in the casing rises to When the preset value is exceeded, the pressure relief mechanism 6 is actuated and opened, and the gas is released outward through the pressure relief mechanism 6 .
  • the end cover plate 10' is provided with a through hole for injecting electrolyte into the battery cell 400, and the through hole can be a round hole, an oval hole, a polygonal hole or other The shape of the hole can extend along the height direction Z of the end cover plate 10'.
  • a liquid injection member 2 for closing the through hole is provided on the end cover plate 10'.
  • An embodiment of the present application provides a battery, the basic structural layout of which is as described above for the battery 200 , including a battery cell 400 .
  • the number of battery cells 400 may vary according to actual conditions, which is not specifically limited in this embodiment of the present application.
  • the battery further includes a temperature sensor, a sensor installation component, and a signal transmission component.
  • the temperature sensor is used to measure the temperature of the battery cell;
  • the sensor mounting assembly is used to install the temperature sensor;
  • the signal transmission part is used to be electrically connected with the temperature sensor to transmit the temperature signal of the battery cell, and the signal transmission part and the sensor mounting assembly Detachable connection.
  • FIG. 2 and FIG. 3 there are shown schematic diagrams of the structure of the temperature sensor 500 , the sensor installation assembly 600 and the signal transmission component 700 and their positional relationship.
  • the temperature sensor 500 is installed in the sensor installation assembly 600 , and the temperature sensor 500 is electrically connected to the signal transmission component 700 , and the signal transmission component 700 is used to transmit the temperature signal of the battery cell 400 measured by the temperature sensor 500 .
  • the signal transmission component 700 is detachably connected to the sensor installation assembly 600 .
  • the detachable connection between the signal transmission part 700 and the sensor installation assembly 600 facilitates independent design, processing, maintenance and replacement of the signal transmission part 700 and the sensor installation assembly 600 .
  • the connection mode between the signal transmission part 700 and the sensor installation assembly 600 can also be set as a universal method, so that one signal transmission part 700 can match various types of sensor installation assemblies 600, similarly, one sensor installation assembly 600 Various types of signal transmission components 700 can be matched, thereby improving the flexibility of selecting equipment in the battery and making more types of equipment available in the battery.
  • the sensor mounting assembly 600 can also be detachably connected to the battery cell 400, so that when the temperature sensor 500 fails and needs to be detected or replaced, the sensor mounting assembly 600 can be directly detached from the battery cell 400 down, thereby improving the replaceability of the temperature sensor 500; on a replaceable basis, a general installation method of the temperature sensor 500 on the sensor mounting assembly 600 can be set, thereby improving the types of the temperature sensor 500 that can be used, Therefore, the versatility of the temperature sensor 500 in the battery is improved.
  • one of the sensor mounting assembly 600 and the battery cell 400 can be provided with a clip, and the other can be provided with a slot, and the clip is connected to the slot to realize the sensor installation assembly 600 and the battery.
  • the detachable connection of the monolith 400 can be determined according to actual conditions, which is not specifically limited in this embodiment of the present application.
  • connection port 610 in order to realize the detachable connection between the signal transmission component 700 and the sensor installation assembly 600, as shown in FIG. 700 can be detachably connected at connection port 610 .
  • the sensor mounting assembly 600 in order to realize the electrical connection between the temperature sensor 500 and the signal transmission component 700 , the sensor mounting assembly 600 also needs to include a lead terminal 620 for connecting the temperature sensor 500 and the signal transmission component 700 .
  • the lead-out terminal 620 can be arranged at the connection port 610, the temperature sensor 500 is connected to the lead-out terminal 620, and the signal transmission component 700 is connected to the lead-out terminal 620
  • the electrical connection between the temperature sensor 500 and the signal transmission component 700 can be realized to transmit the temperature signal.
  • the detachable connection between the sensor installation assembly 600 and the signal transmission part 700 at the connection port 610 can be realized by using the detachable connection between the temperature sensor 500 and the lead-out terminal 620; or, by using the signal transmission part 700 and the lead-out terminal 620 detachable connection to realize the detachable connection between the sensor installation assembly 600 and the signal transmission part 700 at the connection port 610; or, the detachable connection between the temperature sensor 500 and the lead-out terminal 620, and the signal transmission part 700 and the lead-out terminal can be used at the same time.
  • the detachable connection of the terminal 620 realizes the detachable connection between the sensor installation assembly 600 and the signal transmission component 700 at the connection port 610 .
  • the detachable connection between the signal transmission component 700 and the lead-out terminal 620 is taken as an example to illustrate the detachable connection between the sensor installation assembly 600 and the signal transmission component 700 at the connection port 610 .
  • one end 622 of the lead-out terminal 620 needs to be connected to the pin 501 of the temperature sensor 500.
  • bonding or structural fixation, etc. can also be detachably connected by means of snap-fit connection, etc., and the lead-out terminal 620 and the temperature sensor 500 can also be integrally formed.
  • the connection mode of the pin 501 of the sensor 500 is not particularly limited.
  • the other end of the lead-out terminal 620 may have an elastic connection portion 621 , and the elastic connection portion 621 may be disposed at the connection port 610 , and the signal transmission component 700 may be detachably connected to the elastic connection portion 621 by being inserted into the connection port 610 .
  • the detachable connection between the signal transmission component 700 and the elastic connection part 621 may be in various ways, for example, snap connection and the like.
  • the elastic connecting portion 621 is formed by bending the other end of the lead-out terminal 620 .
  • the other end of the lead-out terminal 620 can be bent toward one side of the lead-out terminal 620, and a predetermined distance is kept from the side, so that the other end of the lead-out terminal 620 has a certain degree of elasticity. activity space, so that the detachable connection between the signal transmission component 700 and the elastic connection part 621 can be realized.
  • the size of the preset distance can be determined according to the size and material of the lead-out terminal 620 , which is not specifically limited here.
  • the elastic connecting portion 621 can be obtained by bending the other end of the lead-out terminal 620 toward one side of the lead-out terminal 620 once, as shown in FIG. 3 ; it can also be as shown in FIG. 10 , the elastic connecting portion 621 is obtained by bending the other end of the lead-out terminal 620 toward one side of the lead-out terminal 620 multiple times.
  • the embodiment of the present application does not specifically limit the number of times of bending.
  • the outgoing terminal 620 may be made of sheet metal or the like and has a certain elastic structure, so as to ensure that the elastic connecting portion 621 can elastically move within a certain space.
  • the elastic connecting portion 621 with certain elasticity pushes the signal transmission component 700 into the connection port 610 .
  • the signal transmission part 700 needs to be disassembled, the signal transmission part 700 can be pulled out from the connection port 610 directly, and the elastic connection part 621 will deform accordingly according to the force it bears.
  • the embodiment of the present application does not specifically limit the size and material of the outgoing terminal 620 .
  • the sensor installation assembly 600 for installing the temperature sensor 500 may have various structural forms.
  • the body 630 is used to set the temperature sensor 500
  • the second housing 640 is used to set the connection port 610
  • the lead terminal 620 is set at the connection port 610 .
  • the connection manner between the first housing 630 and the second housing 640 can be set according to actual needs.
  • the first housing 630 and the second housing 640 may be integrally formed, for example, formed by integral injection molding.
  • the first housing 630 is provided with an accommodating cavity for accommodating the temperature sensor 500.
  • the temperature sensor 500 can be fixed in the accommodating cavity by a fixed mold 631, or can be fixed in the accommodating cavity by filling glue.
  • the lead of the temperature sensor 500 The pin 501 is disposed toward the connection port 610 of the second housing 640 .
  • one end 622 of the lead-out terminal 620 is connected to the pin 501 of the temperature sensor 500 .
  • the inner shape of the fixed mold 631 matches the temperature sensor 500 , and the outer shape of the fixed mold 631 matches the cavity, and the fixed mold 631 can be fixedly connected to the first housing 630 by means of interference fit or the like. This embodiment of the present application does not specifically limit it.
  • a detachable connection can also be adopted between the first housing 630 and the second housing 640.
  • a housing 630 or its internal components are damaged, only the first housing 630 is replaced, and when the second housing 640 or its internal components are worn, only the second housing 640 can be replaced, thereby reducing maintenance costs.
  • a heat conduction member 650 may also be included, and the heat conduction member 650 is mainly used to transfer the temperature of the battery cell 400 to the temperature sensor 500, so as to enhance the heat conduction performance and facilitate the temperature sensor 500 to collect the temperature of the battery.
  • the heat conducting member 650 may also be used to connect the first shell 630 and the second shell 640 in addition to enhancing the heat conduction performance.
  • the first housing 630 may be detachably connected to the heat conduction member 650
  • the second housing 640 may be detachably connected to the heat conduction member 650
  • the first housing 630 and the second housing 640 may be connected to the heat conduction member 650 at the same time.
  • the heat conducting element 650 is detachably connected.
  • a plurality of clamping holes 651 may be provided on the heat conducting member 650
  • a clamping member 652 that can be clamped into the clamping holes 651 may be provided on the first housing 630 and the second housing 640 . Therefore, the detachable connection of the first housing 630 , the second housing 640 and the heat conducting member 650 can be realized.
  • the connection of the first housing 630 , the second housing 640 and the heat conducting member 650 may also be realized by means of gluing or the like.
  • the heat-conducting member 650 can be configured to have a structure of accommodating grooves, and the first housing 630 and the second housing 640 can be directly clamped in the accommodating grooves, thereby realizing the first housing 630 .
  • the detachable connection between the second housing 640 and the heat conducting element 650 In order to facilitate the connection of the lead-out terminal 620 on the second housing 640 with the outside world, an opening needs to be provided on one side of the heat-conducting member 650 to facilitate the connection of the signal transmission component 700 to the lead-out terminal 620 .
  • a positioning card edge can also be provided on the heat conduction element 650 , or, as shown in FIG. 8 , on the heat conduction element 650
  • a locking slot 653 is provided, and a stop portion 654 that can be snapped into the locking slot 653 is provided on the second housing 640 .
  • the temperature sensor 500 in FIG. 9 can be directly snapped on the battery cell 400 by providing one or more buckles on the battery cell 400 , so as to realize the detachable connection of the temperature sensor 500 .
  • the structure of the buckle can have various forms, and the shape of the buckle is not specifically limited here.
  • the temperature sensor 500 may be in various structural forms such as a droplet type temperature sensor, a patch type temperature sensor, and the like. According to the specific shape of the temperature sensor 500, a structure for installing or clamping the temperature sensor 500 can be provided in the first housing 630, or the temperature sensor 500 can be directly fixed on the first housing by means of glue sealing or glass sealing. 630 in. The embodiment of the present application does not specifically limit the structural form of the temperature sensor 500 and the connection method with the first housing 630 .
  • the second casing 640 is mainly used to set the connecting port 610, and the through connecting port 610 can be directly engraved in the second casing 640, and the specific engraving process will not be repeated here. .
  • the number of connection ports 610 can be determined according to the number of lead-out terminals 620. When there is one lead-out terminal 620, only one connection port 610 needs to be set; when there are multiple lead-out terminals 620, it can be set There are correspondingly a plurality of connection ports 610, and the plurality of connection ports 610 may be arranged at intervals.
  • a partition can be provided on the sensor installation assembly 600 , specifically, the partition can be provided at the connection port 610 to achieve the purpose of isolating adjacent lead-out terminals 620 . It is also possible to directly engrave a plurality of connection ports 610 arranged at intervals in the second housing 640 , which can also achieve the purpose of isolating adjacent lead-out terminals 620 .
  • the structure of the signal transmission component 700 may also have various forms.
  • the signal transmission component 700 includes a contact end 701 and a transmission end 702 connected to each other; wherein, the contact end 701 is used for contact connection with the lead-out terminal 620; the transmission end 702 is used for used to transmit the temperature signal of the battery cell 400 .
  • the contact end 701 can be inserted into the connection port 610 to realize the connection with the lead-out terminal 620 .
  • the structural form of the contact end 701 can be determined according to the number of the lead-out terminals 620.
  • One end of the contact end 701 connected to the lead-out terminal 620 can be arranged as an integral structure, or the end of the contact end 701 connected to the lead-out terminal 620 can be set as a component.
  • Fork structure each fork corresponds to one lead-out terminal 620, so that the connection between the contact end 701 and the lead-out terminal 620 is relatively isolated to avoid mutual interference.
  • the contact end 701 needs to be made of metal with signal transmission function, and the transmission end 702 can be a wire, FFC (Flexible Flat Cable, flexible flat cable), FPC (Flexible Printed Circuit, flexible circuit board) or PCB (Printed Circuit Board, printing circuit board) and so on, any one or any combination thereof.
  • FFC Flexible Flat Cable, flexible flat cable
  • FPC Flexible Printed Circuit, flexible circuit board
  • PCB Print Circuit Board, printing circuit board
  • the contact end 701 and the transmission end 702 can be connected in various ways, for example, crimping, welding, gluing, etc., and the contact end 701 and the transmission end 702 can also be clamped to facilitate disassembly. And replacement, the embodiment of the present application does not specifically limit the connection mode between the contact end 701 and the transmission end 702 .
  • FIG. 11 it shows a schematic structural diagram of a battery cell 400 provided with the above-mentioned sensor mounting assembly 600, wherein the sensor mounting assembly 600 is fixed on the top of the battery cell 400, and the contact end 701 of the signal transmission component 700 is installed with the sensor.
  • the temperature sensor 500 in the component 600 is connected, and the transmission end 702 of the signal transmission part 700 is connected with the circuit board 800 , and the collected temperature signal is converted into other communication signals through the circuit board 800 and transmitted to the external device.
  • the present application also provides an electric device, the electric device includes the above-mentioned battery 200, and the battery 200 is used to provide electric energy.
  • the specific structural form and working principle of the battery 200 have been described in detail in the above-mentioned embodiments, and will not be repeated in this embodiment.
  • the electric device provided by the embodiment of the present application by setting the above-mentioned battery, on the one hand, through the detachable connection of the signal transmission part and the sensor installation assembly, is conducive to the independent design and processing of the signal transmission part and the sensor installation assembly and maintenance replacement.
  • the sensor mounting assembly can be directly disassembled from the battery cell, thereby improving the replaceability of the temperature sensor. compatibility, in order to facilitate battery maintenance and replacement of faulty equipment, reduce the cost of batteries, and reduce the probability of overall battery scrapping.

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Abstract

本申请涉及一种电池和用电装置，其中，电池包括：电池单体；温度传感器，用于测量电池单体的温度；传感器安装组件，用于安装温度传感器；信号传输部件，用于与温度传感器电连接以传输电池单体的温度信号，且信号传输部件与传感器安装组件可拆卸连接。可以提高温度传感器的可更换性和兼容性，以利于电池的维修以及故障设备的更换，降低电池的成本，减小电池发生整体报废的概率。

Description

电池和用电装置 技术领域
本申请涉及电池技术领域，尤其是涉及一种电池和用电装置。
背景技术
电池作为一种重要的动力新能源，受到了越来越多的重视。为了预测由过热引起爆炸的可能性，现有通常在电池上增加用于温度采集的温感结构，以测量电池模组中电池单元的温度。
然而，现有的温感结构主要是通过点胶、焊接等方式固定在电池单元上，温感结构的通用性较差，不具有可维护性。
发明内容
本申请提供一种电池和用电装置，可以提高温感结构的通用性和可维护性。
本申请的第一方面提供一种电池，包括：
电池单体；
温度传感器，用于测量所述电池单体的温度；
传感器安装组件，用于安装所述温度传感器；
信号传输部件，用于与所述温度传感器电连接以传输所述电池单体的温度信号，且所述信号传输部件与所述传感器安装组件可拆卸连接。
在一些实施例中，所述传感器安装组件的一侧设置有连接端口，所述传感器安装组件与所述信号传输部件在所述连接端口处实现可拆卸连接。
在一些实施例中，所述传感器安装组件还包括：
引出端子，设置于所述连接端口处，所述引出端子用于连接所述温度 传感器与所述信号传输部件。
在一些实施例中，所述引出端子的一端与所述温度传感器连接，所述引出端子的另一端具有弹性连接部，所述信号传输部件插入所述连接端口并与所述弹性连接部实现可拆卸连接。
在一些实施例中，所述引出端子的所述另一端经弯折以形成所述弹性连接部。
在一些实施例中，所述引出端子的所述另一端朝所述引出端子的侧面弯折，并与所述侧面保持预设距离。
在一些实施例中，所述传感器安装组件包括相互连接的第一壳体和第二壳体，所述温度传感器设置于所述第一壳体，所述引出端子和所述连接端口设置于所述第二壳体。
在一些实施例中，所述第一壳体和所述第二壳体可拆卸连接。
在一些实施例中，所述传感器安装组件还包括导热件，所述导热件用于将所述电池单体的温度传递至所述温度传感器。
在一些实施例中，所述第一壳体和/或所述第二壳体与所述导热件可拆卸连接。
在一些实施例中，所述传感器安装组件包括至少两个所述引出端子，所述传感器安装组件还包括分隔部，所述分隔部用于隔离相邻的所述引出端子。
在一些实施例中，所述信号传输部件包括相互连接的接触端和传输端；
所述接触端用于与所述引出端子接触连接；
所述传输端用于传输所述电池单体的温度信号。
在一些实施例中，所述传感器安装组件可拆卸设置在所述电池单体上。
在一些实施例中，所述传感器安装组件与所述电池单体的一者设置有卡接件，另一者设置有卡槽，所述卡接件与卡槽相连以实现所述传感器安装组件和所述电池单体的可拆卸连接。
根据本申请的第二方面，提供了一种用电装置，包括上述实施例的电池，所述电池用于提供电能。
根据本申请实施例提供的电池，一方面，通过信号传输部件与传感器安装组件的可拆卸连接，有利于信号传输部件与传感器安装组件的分别独立设计、加工和维护更换。另一方面，通过传感器安装组件与电池单体可拆卸连接，可以在温度传感器发生故障需要检测或者更换的时候，直接将传感器安装组件从电池单体上拆卸下来，从而提高了温度传感器的可更换性和兼容性，以利于电池的维修以及故障设备的更换，降低电池的成本，减小电池发生整体报废的概率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
图1-A为本申请实施例的一种用电装置的结构示意图。
图1-B为本申请实施例的一种电池的结构示意图。
图1-C为本申请实施例的一种电池模块的结构示意图。
图1-D为本申请实施例的一种电池单体的结构示意图。
图2为本申请实施例的电池中传感器安装组件和信号传输部件的装配示意图。
图3为图2中结构的爆炸图。
图4为图2中传感器安装组件和信号传输部件的可拆卸示意图。
图5为图2中结构的侧视图。
图6为本申请实施例的电池中传感器安装组件和信号传输部件的另一种装配示意图。
图7为图6中传感器安装组件和信号传输部件的可拆卸示意图。
图8为图7中结构的爆炸图。
图9为本申请实施例的电池中传感器安装组件和信号传输部件的另一种装配示意图。
图10为本申请实施例的电池中传感器安装组件和信号传输部件的爆炸图。
图11为本申请实施例的设置有传感器安装组件和信号传输部件的电池的结构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，为本申请的较佳实施例，并非依此限制本申请的保护范围，故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语“实施例”并不一定均是指相同的实施例，也不是与其它实施例互斥的独立 的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
此外，本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序，可以明示或者隐含地包括一个或者更多个该特征。
在本申请的描述中，除非另有说明，“多个”的含义是指两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，机械结构的“相连”或“连接”可以是指物理上的连接，例如，物理上的连接可以是固定连接，例如通过固定件固定连接，例如通过螺丝、螺栓或其它固定件固定连接；物理上的连接也可以是可拆卸连接，例如相互卡接或卡合连接；物理上的连接也可以是一体地连接，例如，焊接、粘接或一体成型形成连接进行连接。电路结构的“相连”或“连接”除了可以是指物理上的连接，还可以是指电连接或信号连接，例如，可以是直接相连，即物理连接，也可以通过中间至少一个元件间接相连，只要达到电路相通即可，还可以是两个元件内部的连通；信号连接除了可以通过电路进行信号连接外，也可以是指通过媒体介质进行信号连接，例如，无线电波。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请实施例中的具体含义。
为了在以下实施例中清楚地描述各个方位，可以使用一些方位用词，例如，如图1-D中的坐标系统对电池的各个方位方向进行了定义，x方向表示电池单体400的长度方向，y方向在水平面内与x方向垂直，表示电池单 体400的宽度方向，z方向垂直于x方向和y方向，表示电池的高度方向。此外，上述描述的x方向、y方向以及z方向等用于说明本实施例的电池的各构件的操作和构造的指示方向的表述不是绝对的而是相对的，且尽管当电池的各构件处于图中所示的位置时这些指示是恰当的，但是当这些位置改变时，这些方向应有不同的解释，以对应改变。
基于相同的方位理解，在本申请的描述中，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
可充电电池可以称为二次电池或动力电池，目前，使用比较广泛的可充电电池为锂电池，例如，锂硫电池、钠锂离子电池或镁离子电池，但不局限于此。为描述方便，本文中可以将可充电电池统称为电池。
电池的安全特性是衡量电池的一个重要特性，在使用或充电时需要尽可能保证电池的安全性。
电池一般由多个电池单体连接组合而成，当电池单体发生外部短路、过充、针刺、平板冲击等等情况时，电池单体由于过热而容易发生热失控。发生热失控时，该电池单体内部会产生排放物，该排放物包含高温烟气(严重者产生明火)和挥发的高温电解液等物质，这些排放物在排放的过程中会发生热扩散，从而导致其他电池单体发生热失控，甚至还会引发电池爆炸等事故。
为了预测由于过热而引起爆炸发生的可能性，避免电池单体发生热失控，目前一种有效的方案，是设置温感结构，以实时监测电池单体的温度，以在电池单体的温度过高时或者达到阈值时及时报警提醒，减小电池单体过热情况发生的概率。
温感结构一般设置有温感芯片，温感芯片通常通过点胶、焊接、结构固定等方式直接集成到汇流条、电压采集设备或者热管理管路等部位上。上述连接方式属于一次性连接方式，不具有可更换性、通用性差、质量可靠性低。温感芯片一旦在生命周期内发生失效，很容易造成电池单体，乃至整个电池的报废，甚至还会引发安全问题。另外，温感结构与信号传输设备也是一体设计，很容易由于某一个设备损坏的时候，其他设备，甚至电池也发生报废的情况。
有鉴于此，本申请提供一种电池，改变温感芯片在电池单体上的连接方式，以及温感芯片与信号传输设备的连接方式，以提高温感芯片的可更换性，以及与温感芯片连接的信号传输设备的可更换性和兼容性，以利于电池的维修以及故障设备的更换，降低电池的成本，减小电池发生整体报废的概率。
本申请实施例中的电池可应用于各种能够以电能提供动力来源的用电装置。此处的用电装置可以但并非仅限于电动汽车、电动列车、电动自行车、高尔夫球车、无人机或轮船等。并且，用电装置可为仅使用电池提供动力的装置，也可为混合动力型装置。电池为用电装置提供电能，并通过电机带动电动装置行进。
例如，如图1-A所示，为本申请一实施例的一种用电装置的结构示意图，用电装置可以为汽车，汽车可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。汽车包括电池200、控制器210和马达220。电池200用于向控制器210和马达220供电，作为汽车的操作电源和驱动电源，例如，电池200用于汽车的启动、导航和运行时的工作用电需求。例如，电池200向控制器210供电，控制器210控制电池200向马达220供电，马达220接收并使用电池200的电力作为汽车的驱动电源，替代或部分地替代燃油或天然气为汽车提供驱动动力。
为了使得电池达到较高的功能以满足使用需求，电池200可以包括相 互电连接的多个电池模块，如图1-B所示，电池200包括第一箱体201、第二箱体202和多个电池模块300，其中，第一箱体201和第二箱体202相互扣合，多个电池模块300排布在第一箱体201和第二箱体202围合形成的空间内。在一些实施例中，第一箱体201和第二箱体202密封连接。
如图1-C所示，电池模块300包括多个电池单体400，多个电池单体400可以通过串联、并联或混联的方式电连接以实现较大的电流或电压，其中，混联是指串联和并联的组合。例如，如图1-C所示，电池单体400可立放，电池单体400的高度方向与z向一致，电池单体400的长度方向与x向一致，多个电池单体400沿其宽度方向并排设置在y向上；或者，电池单体400可以平放，电池单体400的宽度方向与z向一致，电池单体400的长度方向与x向一致，多个电池单体400沿z向可以堆叠至少一层，每一层包括沿x向间隔设置的多个电池单体400。
为了使本领域技术人员清楚地了解本申请的改进点，首先对电池单体400的整体结构进行说明。
如1-D所示，电池单体400包括壳体40、电极组件30和端盖组件10，端盖组件10包括端盖板10’，端盖板10’与壳体40连接(例如，焊接)形成电池单体400的外壳，电极组件30设置在壳体40内，且壳体40内填充电解液。电池单体400可为立方体形、长方体形或圆柱体形。
根据实际使用需求，电极组件30可设置为单个，或多个。如图1-D所示，也可在电池内设置至少两个独立卷绕的电极组件30。电极组件30可通过将第一极片、第二极片以及位于相邻第一极片和第二极片之间的隔离膜一同卷绕或堆叠而形成主体部，其中，隔离膜是介于相邻第一极片和第二极片之间的绝缘体。在本实施例中，示例性地以第一极片为正极极片，第二极片为负极极片进行说明。正极活性物质被涂覆在正极极片的涂覆区上，而负极活性物质被涂覆到负极极片的涂覆区上。由主体部的涂覆区延伸出的多个未涂覆区层叠作为极耳301。电极组件30包括两个极耳301，即正极极耳和负 极极耳。正极极耳从正极极片的涂覆区延伸出，而负极极耳从负极极片的涂覆区延伸出。
端盖组件10设在电极组件30顶部，如图1-D所示，端盖组件10包括端盖板10’和两个电极端子5，两个电极端子5分别为正极端子和负极端子，每个电极端子5对应设置一个连接构件20，连接构件20位于端盖板10’与电极组件30之间。
例如，图1-D中电极组件30的极耳301位于顶部，正极极耳通过一个连接构件20与正极端子连接，负极极耳通过另一个连接构件20与负极端子连接。可选的，电池单体400可以包括两个端盖组件10，分别设置于壳体40的两端，每个端盖组件10上设置一个电极端子5。
端盖板10’上还可设置防爆构件，当电池单体400内气体太多时及时释放电池单体400内的气体，避免发生爆炸。
端盖板10’上设有排气孔，排气孔可设在端盖板10’沿长度方向的中间位置。防爆构件包括泄压机构6，泄压机构6设在排气孔上，在正常状态下，泄压机构6密封安装于排气孔，在电池单体400发生膨胀使外壳内的气压升高至超出预设值时，泄压机构6致动开启，气体通过泄压机构6向外释放。
在一些实施例中，如图1-D所示，端盖板10’上设有用于向电池单体400内注入电解液的通孔，通孔可采用圆孔、椭圆孔、多边形孔或其它形状的孔，并可沿端盖板10’的高度方向Z延伸。端盖板10’上设有用于将通孔封闭的注液构件2。
本申请实施例提供了一种电池，其基本结构布局如上述电池200所述，包括电池单体400。其中，电池单体400的设置数量可以根据实际情况变化，本申请实施例对此不作特殊限定。
不同的是，本申请实施例中，电池还包括温度传感器、传感器安装组件以及信号传输部件。其中，温度传感器用于测量电池单体的温度；传感器安装组件用于安装温度传感器；而信号传输部件用于与温度传感器电连接以 传输电池单体的温度信号，且信号传输部件与传感器安装组件可拆卸连接。
参照图2和图3，示出了温度传感器500、传感器安装组件600以及信号传输部件700的结构及其位置关系示意图。本申请实施例中，温度传感器500安装在传感器安装组件600中，并且该温度传感器500与信号传输部件700电连接，信号传输部件700用于传输温度传感器500测量的电池单体400的温度信号。并且，如图4所示，信号传输部件700与传感器安装组件600可拆卸连接。
本申请实施例中，通过信号传输部件700与传感器安装组件600的可拆卸连接，有利于信号传输部件700与传感器安装组件600的分别独立设计、加工和维护更换。例如，当信号传输部件700发生损坏时，只更换信号传输部件700；在传感器安装组件600发生损坏时，只更换传感器安装组件600。另外，还可以将信号传输部件700与传感器安装组件600的连接方式设置为一种通用方式，如此，一个信号传输部件700可以匹配多种类型的传感器安装组件600，同样的，一个传感器安装组件600可以匹配多种类型的信号传输部件700，从而提高了电池中设备选择的灵活性，使电池中可使用的设备种类更多。
本申请实施例中，还可以将传感器安装组件600与电池单体400可拆卸连接，从而在温度传感器500发生故障需要检测或者更换的时候，可以直接将传感器安装组件600从电池单体400上拆卸下来，从而提高了温度传感器500的可更换性；在可更换的基础上，可以设置一种通用的温度传感器500在传感器安装组件600上的安装方式，从而可以提高可使用温度传感器500的种类，从而提高电池中温度传感器500的通用性。
在一些实施例中，可以在传感器安装组件600与电池单体400的一者上设置卡接件，另一者上设置卡槽，通过卡接件与卡槽相连以实现传感器安装组件600和电池单体400的可拆卸连接。具体的，卡接件和卡槽的结构形式可以根据实际情况确定，本申请实施例对此不作特殊限定。
本申请实施例中，为了实现信号传输部件700与传感器安装组件600的可拆卸连接，如图4所示，可以在传感器安装组件600的一侧设置连接端口610，传感器安装组件600与信号传输部件700可以在连接端口610处实现可拆卸连接。
在一些实施例中，为了实现温度传感器500与信号传输部件700的电连接，传感器安装组件600还需要包括引出端子620，该引出端子620用于连接温度传感器500与信号传输部件700。
本申请实施例中，为了简化结构，提高整个结构的紧凑型，可以将引出端子620设置在连接端口610处，温度传感器500通过与引出端子620连接，并且，信号传输部件700通过与引出端子620连接，即可实现温度传感器500与信号传输部件700的电连接以进行温度信号的传输。
在一些实施例中，可以采用温度传感器500与引出端子620可拆卸连接的方式实现传感器安装组件600与信号传输部件700在连接端口610处的可拆卸连接；或者，采用信号传输部件700与引出端子620可拆卸连接的方式实现传感器安装组件600与信号传输部件700在连接端口610处的可拆卸连接；又或者，可以同时采用温度传感器500与引出端子620可拆卸连接，以及信号传输部件700与引出端子620可拆卸连接的方式实现传感器安装组件600与信号传输部件700在连接端口610处的可拆卸连接。
本申请实施例以信号传输部件700与引出端子620可拆卸连接的方式为例，来说明传感器安装组件600与信号传输部件700在连接端口610处的可拆卸连接。
具体的，参考图5，该引出端子620的一端622需要与温度传感器500的引脚501连接，例如，引出端子620的一端622可以与温度传感器500的引脚501通过点胶、焊接、压接、粘接或者结构固定等方式固定连接，也可以通过卡接连接等方式实现可拆卸连接，还可以将引出端子620与温度传感器500一体成型，本申请实施例对于引出端子620的一端622与温度传感器 500的引脚501的连接方式不作特殊限定。
本申请实施例中，为了实现引出端子620的另一端与信号传输部件700在连接端口610处的可拆卸连接。该引出端子620的另一端可以具有弹性连接部621，该弹性连接部621可以设置在连接端口610处，信号传输部件700通过插入连接端口610处，与弹性连接部621实现可拆卸连接。
在一些实施例中，信号传输部件700与弹性连接部621的可拆卸连接方式可以有多种，例如，卡接连接等。
在本申请实施例中，弹性连接部621是通过将引出端子620的另一端进行弯折而形成的。如图3所示。该弹性连接部621在具体形成过程中，可以是引出端子620的另一端朝引出端子620的一侧面弯折，并与该侧面保持预设距离，以使引出端子620的另一端具有一定的弹性活动空间，从而可以实现信号传输部件700与弹性连接部621的可拆卸连接。其中，预设距离的大小可以根据引出端子620的尺寸和材质来确定，此处不作特殊限定。
在一些实施例中，弹性连接部621可以是引出端子620的另一端朝引出端子620的一侧面弯折一次获得，参照图3所示；也可以是如图10中所示的，弹性连接部621是引出端子620的另一端朝引出端子620的一侧面弯折多次获得的。本申请实施例对于弯折的次数不作特殊限定。
在一些实施例中，该引出端子620可以是由薄片金属等制成的具有一定弹性的结构，以确保弹性连接部621可以在一定的空间内弹性活动。如图3所示，当引出端子620和信号传输部件700均插入连接端口610的时候，具有一定弹性的弹性连接部621会将信号传输部件700顶在连接端口610中。而在需要拆卸信号传输部件700的时候，直接将信号传输部件700从连接端口610中抽出即可，弹性连接部621会根据所承受的力而发生相应的变形。本申请实施例对于引出端子620的尺寸和材质不作具体限定。
在一些实施例中，用于安装温度传感器500的传感器安装组件600的结构形式可以有多种。为了提高传感器安装组件600加工维修的便利性，本 申请实施例中，如图3所示，传感器安装组件600包括了相互连接的第一壳体630和第二壳体640，其中，第一壳体630用于设置温度传感器500，第二壳体640用于设置连接端口610，引出端子620则设置于连接端口610处。
在一些实施例中，可以根据实际需要来设置第一壳体630和第二壳体640之间的连接方式。如图10所示，第一壳体630和第二壳体640可以是一体成型结构，例如，通过一体注塑成型而成。并且，第一壳体630内设置有容纳温度传感器500的容纳腔，温度传感器500可以通过固定模具631固定在容纳腔内，也可以通过灌胶的方式固定在容纳腔内，温度传感器500的引脚501则朝向第二壳体640的连接端口610设置。在该连接端口610处，实现引出端子620的一端622与温度传感器500的引脚501的连接。其中，固定模具631的内部形状与温度传感器500匹配，固定模具631的外部形状与容纳腔匹配，并且，固定模具631可以采用过盈配合等方式实现与第一壳体630的固定连接。本申请实施例对此不作特殊限定。
本申请实施例中，如图3-图8所示，为了提高传感器安装组件600的可更换性，第一壳体630和第二壳体640之间还可以采用可拆卸连接的方式，在第一壳体630或其内部元件损坏时，只更换第一壳体630，在第二壳体640或其内部元件磨损时，可以只更换第二壳体640，从而可以降低维修成本。
在一些实施例中，第一壳体630和第二壳体640之间可拆卸连接的方式可以有多种，例如，多种卡接连接等方式。本申请实施例中，如图3所示，还可以包括导热件650，该导热件650主要用于将电池单体400的温度传递至温度传感器500，以增强导热性能，便于温度传感器500采集电池单体400的温度。
本申请实施例中，导热件650除了用于增强导热性能之外，还可以用于连接第一壳体630和第二壳体640。具体的，可以是第一壳体630与导热件650可拆卸连接，也可以是第二壳体640与导热件650可拆卸连接，或者是，第一壳体630和第二壳体640同时与导热件650可拆卸连接。
在一些实施例中，第一壳体630、第二壳体640与导热件650可拆卸连接的方式可以有多种。如图3和图5所示，导热件650上可以设置多个卡接孔651，在第一壳体630和第二壳体640上可以设置可卡入卡接孔651的卡接件652，从而可以实现第一壳体630、第二壳体640与导热件650的可拆卸连接。也可以通过胶粘等方式实现第一壳体630、第二壳体640与导热件650的连接。
或者，如图6-图8所示，可以将导热件650设置成具有容纳槽的结构，第一壳体630和第二壳体640可以直接卡设在容纳槽内，从而实现第一壳体630、第二壳体640与导热件650的可拆卸连接。为了便于第二壳体640上的引出端子620与外界连接，还需要在导热件650的一侧设置开口，以便于信号传输部件700与引出端子620连接。
为了对设置在具有开口的导热件650中的第一壳体630和第二壳体640定位，还可以在导热件650上设置定位卡边，或者，如图8所示，在导热件650上设置卡槽653，第二壳体640上设置一个可卡入卡槽653内的止挡部654。通过止挡部654与卡槽653的配合，可以防止第一壳体630和第二壳体640从导热件650中滑出。
需要说明的是，在实际使用过程中，除了使用导热件650外，也可以如图9所示，只保留第二壳体640，而将温度传感器500直接固定在电池单体400上，以实现温度传感器500与信号传输部件700的可拆卸连接。如此，还可以减小整个结构的尺寸，满足电池所预留空间大小。当然，图9中的温度传感器500可以通过在电池单体400上设置一或多个卡扣等结构而直接卡设在电池单体400上，以实现温度传感器500的可拆卸连接。其中卡扣的结构可以有多种形式，此处对于卡扣的形状不作特殊限定。
在一些实施例中，温度传感器500可以是水滴头式温度传感器、贴片式温度传感器等多种结构形式。可以根据温度传感器500的具体形状，在第一壳体630中设置安装或卡设温度传感器500的结构，或者，也可以采用胶 封或玻封等方式将温度传感器500直接固定在第一壳体630中。本申请实施例对于温度传感器500的结构形式，以及与第一壳体630的连接方式不作特殊限定。
本申请实施例中，第二壳体640主要用于设置连接端口610，可以采用直接在第二壳体640内刻制出贯通的连接端口610即可，此处对于具体的刻制过程不作赘述。
在一些实施例中，连接端口610的设置数量可以根据引出端子620的数量确定，在引出端子620有一个的时候，连接端口610只需要设置一个；在引出端子620有多个的时候，可以设置相应的多个连接端口610，且多个连接端口610可以间隔设置。例如，可以在传感器安装组件600上设置分隔部，具体可以将分隔部设置在连接端口610处，达到隔离相邻的引出端子620的目的。也可以直接在第二壳体640内刻制多个间隔设置的连接端口610，同样可以达到隔离相邻的引出端子620的目的。
在一些实施例中，信号传输部件700的结构也可以有多种形式。本申请实施例中，如图4和图7所示，信号传输部件700包括相互连接的接触端701和传输端702；其中，接触端701用于与引出端子620接触连接；传输端702则用于传输电池单体400的温度信号。
在一些实施例中，接触端701插入连接端口610中即可实现与引出端子620的连接。接触端701的结构形式可以根据引出端子620的数量来确定，可以将接触端701的与引出端子620连接的一端设置成整体结构，也可以将接触端701的与引出端子620连接的一端设置成分叉结构，每个叉对应一个引出端子620，从而将接触端701与引出端子620的连接相对隔离开来，避免相互之间的干扰。接触端701需要由具有信号传输功能的金属制成，传输端702则可以是导线、FFC(Flexible Flat Cable，柔性扁平电缆)、FPC(FlexiblePrinted Circuit，柔性电路板)或PCB(Printed Circuit Board，印刷电路板)等任何一种或其任意组合。
在一些实施例中，接触端701与传输端702的连接方式可以有多种，例如，压接、焊接、胶接等方式，也可以将接触端701与传输端702卡接连接，以利于拆卸和更换，本申请实施例对于接触端701与传输端702的连接方式不作特殊限定。
参照图11，示出了一种设置上述传感器安装组件600的电池单体400的结构示意图，其中，传感器安装组件600固定在电池单体400的顶部，信号传输部件700的接触端701与传感器安装组件600内的温度传感器500连接，信号传输部件700的传输端702则与电路板800连接，通过电路板800将所采集的温度信号转换为其他通讯信号而传输至外部设备。
另一方面，本申请还提供了一种用电装置，用电装置包括上述的电池200，电池200用于提供电能。其中，电池200的具体结构形式和工作原理已经在上述实施例中进行了详细说明，本实施例对此不再赘述。
综上，本申请实施例提供的用电装置，通过设置上述的电池，一方面，通过信号传输部件与传感器安装组件的可拆卸连接，有利于信号传输部件与传感器安装组件的分别独立设计、加工和维护更换。另一方面，通过传感器安装组件与电池单体可拆卸连接，可以在温度传感器发生故障需要检测或者更换的时候，直接将传感器安装组件从电池单体上拆卸下来，从而提高了温度传感器的可更换性和兼容性，以利于电池的维修以及故障设备的更换，降低电池的成本，减小电池发生整体报废的概率。
本申请上述各保护主题以及各实施例中的特征之间可以相互借鉴，在结构允许的情况下，本领域技术人员也可对不同实施例中的技术特征灵活组合，以形成更多的实施例。
以上对本申请所提供的一种电池和用电装置进行了详细介绍。本文中应用了具体的实施例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进 行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。

Claims (15)

  1. 一种电池，包括：
    电池单体；
    温度传感器，用于测量所述电池单体的温度；
    传感器安装组件，用于安装所述温度传感器；
    信号传输部件，用于与所述温度传感器电连接以传输所述电池单体的温度信号，且所述信号传输部件与所述传感器安装组件可拆卸连接。
  2. 根据权利要求1所述的电池，其中，所述传感器安装组件的一侧设置有连接端口，所述传感器安装组件与所述信号传输部件在所述连接端口处实现可拆卸连接。
  3. 根据权利要求2所述的电池，其中，所述传感器安装组件还包括：
    引出端子，设置于所述连接端口处，所述引出端子用于连接所述温度传感器与所述信号传输部件。
  4. 根据权利要求3所述的电池，其中，所述引出端子的一端与所述温度传感器连接，所述引出端子的另一端具有弹性连接部，所述信号传输部件插入所述连接端口并与所述弹性连接部实现可拆卸连接。
  5. 根据权利要求4所述的电池，其中，所述引出端子的所述另一端经弯折以形成所述弹性连接部。
  6. 根据权利要求5所述的电池，其中，所述引出端子的所述另一端朝所述引出端子的侧面弯折，并与所述侧面保持预设距离。
  7. 根据权利要求3-6中任一项所述的电池，其中，所述传感器安装组件包括相互连接的第一壳体和第二壳体，所述温度传感器设置于所述第一壳体，所述引出端子和所述连接端口设置于所述第二壳体。
  8. 根据权利要求7所述的电池，其中，所述第一壳体和所述第二壳体可拆卸连接。
  9. 根据权利要求7所述的电池，其中，所述传感器安装组件还包括导热件，所述导热件用于将所述电池单体的温度传递至所述温度传感器。
  10. 根据权利要求9所述的电池，其中，所述第一壳体和/或所述第二壳体与所述导热件可拆卸连接。
  11. 根据权利要求3-10中任一项所述的电池，其中，所述传感器安装组件包括至少两个所述引出端子，所述传感器安装组件还包括分隔部，所述分隔部用于隔离相邻的所述引出端子。
  12. 根据权利要求3-11中任一项所述的电池，其中，所述信号传输部件包括相互连接的接触端和传输端；
    所述接触端用于与所述引出端子接触连接；
    所述传输端用于传输所述电池单体的温度信号。
  13. 根据权利要求1-12中任一项所述的电池，其中，所述传感器安装组件可拆卸设置在所述电池单体上。
  14. 根据权利要求13所述的电池，其中，所述传感器安装组件与所述电池单体的一者设置有卡接件，另一者设置有卡槽，所述卡接件与卡槽相连以实现所述传感器安装组件和所述电池单体的可拆卸连接。
  15. 一种用电装置，其中，包括如权利要求1-14中任一项所述的电池，所述电池用于提供电能。
PCT/CN2021/106849 2021-07-16 2021-07-16 电池和用电装置 WO2023283945A1 (zh)

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