CN216413142U - Battery package and consumer - Google Patents
Battery package and consumer Download PDFInfo
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- CN216413142U CN216413142U CN202122228484.3U CN202122228484U CN216413142U CN 216413142 U CN216413142 U CN 216413142U CN 202122228484 U CN202122228484 U CN 202122228484U CN 216413142 U CN216413142 U CN 216413142U
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- 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
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Abstract
The embodiment of the application relates to the technical field of batteries, and particularly discloses a battery pack and electric equipment, including: the battery cell module, the circuit board, the first shell and the first detection module are electrically connected, the battery cell module, the circuit board and the first detection module are all contained in the first shell, the first shell is provided with a first side wall, the first side wall has a first side face facing one side of the battery cell module, the first detection module is electrically connected with the circuit board, the first detection module is arranged on the first side face, the first detection module is located between the battery cell module and the first side face, and the first detection module detects moisture entering the first shell. Through the mode, the embodiment of the application can detect the moisture entering the battery pack.
Description
Technical Field
The embodiment of the application relates to the technical field of batteries, in particular to a battery pack and electric equipment.
Background
In the current market, a common battery includes a single battery cell, and because the electric quantity of the single battery cell is less, in order to increase the electric quantity, a plurality of battery cells are usually wrapped to form a new battery pack, and the new battery pack can solve the problem of less electric quantity of the battery, and the application field of the battery pack is wide, and the electric equipment includes but is not limited to, for example: agricultural unmanned aerial vehicle, two-wheeled electric motor car, energy storage equipment etc..
In the process of implementing the present application, the inventors of the present application found that: when the electric equipment is used in rainy days or other conditions with accumulated water, the water in the battery pack is difficult to detect, and the water in the battery pack is easy to cause the internal short circuit of the battery pack, so that the service life of the battery pack is influenced, and the normal use of the electric equipment is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, embodiments of the present application provide a battery pack and an electric device, which solve the problem that the service life of the battery pack is affected due to the fact that water entering the battery pack is difficult to detect.
According to an aspect of an embodiment of the present application, there is provided a battery pack including: the battery cell module comprises a battery cell module body, a circuit board, a first shell body and a first detection module body, wherein the circuit board is electrically connected with the battery cell module body, the circuit board and the first detection module body are all accommodated in the first shell body, the first shell body is provided with a first side wall, the first side wall is provided with a first side face facing one side of the battery cell module body, the first detection module body is arranged on the first side face, the first detection module body is located between the battery cell module body and the first side face, and the first detection module body detects moisture entering the first shell body.
In an optional mode, a control module is arranged on the circuit board; the first detection module comprises a detection device, the detection device is electrically connected with the control module, the detection device is provided with a first conductive part and a second conductive part, the first conductive part and the second conductive part are in a separated state, the first conductive part and the second conductive part are communicated through water, and the control module determines that moisture enters into the first shell through a communication signal between the first conductive part and the second conductive part.
In an optional manner, the battery pack includes a first wire harness and a second wire harness, one end of the first wire harness is connected to the first conductive portion, the other end of the first wire harness is electrically connected to the control module, one end of the second wire harness is connected to the second conductive portion, and the other end of the second wire harness is electrically connected to the control module. And connecting the first detection module and the control module by using the first wire harness and the second wire harness.
In an alternative mode, the first side surface extends along a first direction to form a first protruding portion, and the first protruding portion is disposed toward the cell module; the first side surface extends along a first direction to form a second protruding part, and the second protruding part and the first protruding part are arranged at intervals; the first detection module is connected with the first protrusion and the second protrusion, and the first detection module is located between the first protrusion and the second protrusion along a second direction. Defining a position of the first detection module with the first and second protrusions.
In an alternative mode, an end of the first protruding portion away from the first side surface extends to a second direction from the first protruding portion to the second protruding portion, and the second direction is perpendicular to the first direction; the end, far away from the first side face, of the second protruding portion extends to a second section in a direction opposite to the second direction, the first detection module enters a space between the first protruding portion and the second protruding portion from a third direction, the first section and the second section abut against the end, far away from the first side face, of the first detection module, and the third direction is perpendicular to the first direction and the second direction. The first section and the second section are used for limiting the first detection module to move in the first direction.
In an alternative mode, a third protruding portion extends from the first side surface along the first direction, the third protruding portion is located between the first protruding portion and the second protruding portion, and an end portion of the third protruding portion on a side away from the first side surface is in contact connection with an end of the first detection module close to the first side surface.
In an optional mode, a protruding block extends from the first side surface along the first direction, and a distance from an end of the protruding block close to one side of the cell module to the first side surface along the first direction is a first distance h 1; along the first direction, the distance from the end part of the first detection module close to one side of the battery cell module to the first side surface is a second distance h2, and the second distance h2 is smaller than the first distance h 1. The moisture entering the first shell from the first side wall can be detected by the first detection module when approaching the protruding block, the moisture is limited to be in contact with the first wire harness and the second wire harness on the protruding block, and the short circuit of the internal circuit of the battery pack is reduced.
In an alternative mode, a first opening is formed in the protruding block; the battery pack further comprises a connector, and the connector is arranged at the first opening; the battery pack further comprises a third wire harness, one end of the third wire harness is electrically connected with the circuit board, the other end of the third wire harness is connected with the connector, and the third wire harness is located between the first detection module and the battery cell module along the first direction. And realizing the connection between the circuit board and the connector by using the third wire harness.
In an optional mode, the battery pack further includes a second casing, the second casing is wrapped around the battery cell module, and the second casing is located between the first casing and the battery cell module. The second shell is used for reducing the damage to the battery cell module caused by moisture entering the first shell.
In an alternative mode, the battery pack comprises a first buffer cushion, the first buffer cushion is arranged at the contact position between the first shell and the second shell, and the Shore C hardness of the first buffer cushion is 65-85 degrees. When the battery pack falls, the first cushion pad can play a role in buffering, and collision between the first shell and the second shell is reduced.
In an optional mode, the battery pack further includes a second detection module, the second detection module is disposed in the second casing, the second detection module is connected to the control module, and along the first direction, the second detection module is located between the battery cell module and the first side surface. When moisture entering the first shell is about to enter the second shell, the moisture can be detected by the second detection module.
In an alternative form, the second housing encases the circuit board. And the damage of moisture entering the first shell to the circuit board is reduced.
According to another aspect of the embodiments of the present application, there is provided an electric device including the battery pack as described above.
The beneficial effects of the embodiment of the application are that: different from the prior art, the embodiment of the present application provides a battery cell module, a circuit board, a first casing and a first detection module, wherein the battery cell module includes a plurality of sequentially stacked battery cells, the circuit board is electrically connected to the battery cell module, the circuit board and the first detection module are all accommodated in the first casing, the first casing is provided with a first side wall, the first side wall has a first side surface facing one side of the battery cell module, in addition, the first detection module is disposed in the first side surface, the first detection module is located between the battery cell module and the first side surface, when a battery pack is used in rainy days or other situations with water accumulation, the first detection module disposed in the battery pack detects the water entering the first casing, if it is determined that water is introduced into the first casing, the user can in time clear away the moisture in the battery package, reduces the inside short circuit of battery package, improves the life of battery package and guarantees the normal use of consumer.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is an exploded view illustrating the overall structure of a battery pack according to an embodiment of the present application;
FIG. 2 is an assembled view of a portion of the structure of one embodiment of the battery pack of the present application;
FIG. 3 is an enlarged view of the structure at B in FIG. 2;
FIG. 4 is an enlarged view of the structure at A in FIG. 1;
fig. 5 is an assembly schematic diagram of a cell module, a second cushion pad and a third cushion pad of a battery pack according to an embodiment of the present application;
fig. 6 is an exploded schematic view of a part of the structure of a battery pack according to an embodiment of the present application;
FIG. 7 is a side cross-sectional view of one embodiment of a battery pack of the present application;
FIG. 8 is an enlarged view of the structure at C in FIG. 7;
FIG. 9 is a schematic side cross-sectional view from another angle illustrating an embodiment of a battery pack of the present application;
FIG. 10 is an enlarged view of the structure at H in FIG. 9;
fig. 11 is a schematic view of a first side wall structure of an embodiment of a battery pack of the present application;
fig. 12 is an assembly view showing the overall structure of a battery pack according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a single cell of a battery pack according to an embodiment of the present application;
fig. 14 is an assembly diagram of a cell module and a circuit board of a battery pack according to an embodiment of the present application;
fig. 15 is an assembled schematic view of a part of the structure of a battery pack according to an embodiment of the present application;
FIG. 16 is an enlarged view of the structure at G in FIG. 15;
fig. 17 is a top view of a connector of a battery pack according to an embodiment of the present application mounted to a first side wall;
fig. 18 is an exploded view of a first detection module, a first wire harness, and a second wire harness of a battery pack according to an embodiment of the present application;
fig. 19 is a top view of a connector mounted to a first side wall of an embodiment of a battery pack of the present application;
FIG. 20 is an enlarged view of the structure at F in FIG. 19;
fig. 21 is an assembly view showing a part of the internal structure of a battery pack according to an embodiment of the present application;
fig. 22 is another side cross-sectional view of a battery pack according to an embodiment of the present application;
FIG. 23 is an enlarged view of the structure at E in FIG. 22;
fig. 24 is an exploded view schematically illustrating a part of the structure of a battery pack according to an embodiment of the present application;
fig. 25 is a further side cross-sectional view of a battery pack according to an embodiment of the present application;
FIG. 26 is an enlarged view of the structure of FIG. 25 at D;
fig. 27 is a schematic structural diagram of an electric device according to another embodiment of the present application.
Detailed Description
In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For better explanation of the structure of the battery pack 01, the structure of the battery pack 01 will be described with reference to X, Y, Z coordinate axes, wherein X, Y, Z coordinate axes are perpendicular to each other two by two, the first direction is along the positive direction of the X axis, the second direction is along the positive direction of the Y axis, and the third direction is along the positive direction of the Z axis.
Referring to fig. 1 to 3, a battery pack 01 includes: the battery pack comprises a first shell 10, a battery cell module 20, a circuit board 30 and a first detection module 40. The battery cell module 20, the circuit board 30 and the first detection module 40 are all accommodated in the first casing 10, the first detection module 40 is electrically connected with the circuit board 30, and the circuit board 30 is electrically connected with the battery cell module 20. Wherein the first detection module 40 detects moisture inside the first casing 10.
Referring to fig. 3 to 5, the battery pack 01 further includes: a second housing 50, a first harness 60, a second harness 70, a third harness 80, a connector 90, a first bumper 100, a handle assembly 120, a second bumper 130, a third bumper 140, and a second detection module (not shown). The first wire harness 60 and the second wire harness 70 are used for connecting the circuit board 30 and the first detection module 40, the third wire harness 80 is used for connecting the circuit board 30 and the connector 90, the second casing 50 is wrapped on the cell module 20, the first buffer pad 100 is disposed at a contact position between the first casing 10 and the second casing 50, the second detection module is disposed on the second casing 50, the handle assembly 120 is disposed at one end of the first casing 10, and the second buffer pad 130 and the third buffer pad 140 are disposed at two sides of the cell module 20 along the first direction X.
The first housing 10 includes a first housing 11 and a second housing 12, the first housing 11 is provided with a first cavity (not labeled), the second housing 12 is provided with a second cavity (not labeled), the first housing 11 is connected to the second housing 12, and the first cavity and the second cavity form an accommodating cavity 10a of the first housing 10.
As shown in fig. 6, the first casing 10 includes first and second side walls 101 and 102 disposed opposite to each other, third and fourth side walls 103 and 104 disposed opposite to each other, and fifth and sixth side walls 105 and 106. The first direction X is a direction in which the first sidewall 101 and the second sidewall 102 are oppositely disposed, the first sidewall 101 and the second direction Y are a direction in which the third sidewall 103 and the fourth sidewall 104 are oppositely disposed, and the third direction Z is a direction in which the fifth sidewall 105 and the sixth sidewall 106 are oppositely disposed. The first sidewall 101 has a first side 101a facing the battery cell module 20, the second sidewall 102 has a second side 102a opposite to the first side 101a, the first sidewall 101 can be used for placing the first detection module 40, and the second side 102a can be used for installing the handle assembly 120.
The accommodating cavity 10a of the first casing 10 may be used to accommodate the battery cell module 20, the circuit board 30 and the first detection module 40. The first casing 10 can limit the direct contact between the internal components of the battery pack and external components, and can reduce the damage of external moisture to the internal components of the battery pack.
In some embodiments, the first housing is made of an insulating material, which may be, but is not limited to, polyvinyl chloride, polyethylene, polystyrene, propylene, or nylon, or a material such as phenol.
In some embodiments, the first shell 11 is provided with a hook 111, the second shell 12 is provided with a bayonet 121, the hook 111 is disposed opposite to the bayonet 121, and the first shell 11 and the second shell 12 are connected by the bayonet 121 and the hook 111. It is understood that the connection manner of the first shell 11 and the second shell 12 includes, but is not limited to, using a snap connection manner, and other connection manners are also possible, such as: welding, screwing, etc.
A portion of the first sidewall 101 is located in the first case 11, another portion of the first sidewall 101 is located in the second case 12, and when the first case 11 and the second case 12 are connected, the complete first sidewall 101 is formed, and similarly, a portion of the second sidewall 102 is located in the first case 11, and another portion of the second sidewall 102 is located in the second case 12, and when the first case 11 and the second case 12 are connected, the complete second sidewall 102 is formed. It should be understood that the structure of the first casing 10 is not limited to the above-mentioned connection between the first casing 11 and the second casing 12, and the structure of the first casing 10 may also be integrally formed, and the integrally formed first casing 10 is provided with a second opening (not shown) communicating with the accommodating cavity 10a, and the second opening facilitates the placement of the battery cell module 20 in the accommodating cavity 10 a.
In some embodiments, the second side 102a of the second sidewall 102 is provided with a first recess 1021, and the first recess 1021 is used for mounting the handle assembly 120. It is understood that the fixing manner of the handle assembly 120 and the first casing 10 is not limited to the fixing manner by the first concave portion 1021, and other fixing manners may be adopted, for example: screwing, riveting, welding, etc.
In some embodiments, the first sidewall 101 is provided with a first through hole 1011, and when water enters the first casing 10, a part of the water may flow out of the first casing 10 through the first through hole 1011, so as to reduce short circuit of electronic components disposed in the first casing 10.
The connector 90 is usually disposed at the first sidewall 101, and when the battery pack is used normally, the first sidewall 101 is disposed toward the ground, so that moisture is easy to enter the first housing 10 from the first sidewall 101 in rainy days or other situations where water is accumulated, and the first sidewall 101 is provided with the first through hole 1011, which facilitates the outflow of water entering the first housing 10.
In some embodiments, as shown in fig. 7 to 10, the first side surface 101a of the first side wall 101 extends along the first direction X with a first protrusion 1012, and the first protrusion 1012 can limit the first detection module 40 from moving in a direction opposite to the second direction Y. Optionally, the first protrusion 1012 may be connected with the first detection module 40.
In some embodiments, the first side surface 101a of the first sidewall 101 extends along the first direction X with a second protrusion 1013, the second protrusion 1013 and the first protrusion 1012 are spaced along the second direction Y, the first protrusion 1012 and the second protrusion 1013 are connected to the first detecting module 40, the second protrusion 1013 can limit the movement of the first detecting module 40 in the second direction Y, and the second protrusion 1013 and the first protrusion 1012 cooperate to define the position of the first detecting module 40. Alternatively, the second protrusion 1013 may be connected to the first detection module 40.
In some embodiments, an end of the first protrusion 1012 away from the first side 101a extends along the second direction Y with a first section 1012a, along which the first detection module 40 and the first section 1012a are sequentially disposed, and the first section 1012a can limit the first detection module 40 from moving along the first direction X. Optionally, the first section 1012a may be connected with the first detection module 40.
In some embodiments, an end of the second protrusion 1013 away from the first side surface 101a extends in a direction opposite to the second direction Y with a second section 1013a, along which the first detection module 40 and the second section 1013a are sequentially disposed, and the second section 1013a can limit the first detection module 40 from moving along the first direction X. Optionally, the second section 1013a abuts an end of the first detecting module 40 away from the first side 101a, and the second section 1013a cooperates with the first section 1012a to limit the first detecting module 40 from moving in the first direction X.
In some embodiments, the first side surface 101a extends along the first direction X with a third protrusion 1014, the third protrusion 1014 is located between the first protrusion 1012 and the second protrusion 1013 along the second direction Y, an end of the third protrusion 1014 on a side far from the first side surface 101a supports an end of the first detection module 40 close to the first side surface 101a, and the third protrusion 1014 is used for spacing the first detection module 40 from the first side surface 101 a. Optionally, the third protrusion 1014 may limit the first detection module 40 from moving along the third direction Z.
In some embodiments, the first side 101a extends along the first direction X to form a fourth protrusion 1016, and along the third direction Z, a projection of the third protrusion 1014 overlaps with a projection of the fourth protrusion 1016, and a projection of the fourth protrusion 1016 extends beyond the projection of the third protrusion 1014 in the first direction X. In the third direction Z, when the first detection module 40 is inserted between the first protrusion 1012 and the second protrusion 1013, the fourth protrusion 1016 may limit the position of the first detection module 40 in the third direction Z. Optionally, the third tab 1014 and the fourth tab 1016 are connected. Optionally, the third and fourth tabs 1014, 1016 form an L-shaped structure.
In some embodiments, the first side surface 101a extends along a first direction X to form a protruding block 1015, and a distance from the first side surface 101a to a surface of the protruding block 1015 close to the cell module 20 along the first direction X is a first distance h1, and the protruding block 1015 can be used for mounting the connector 90. When water enters the first side 101a of the first housing 10, the protruding blocks 1015 may be used to support the first wire harness 60 and the second wire harness 70, and limit the first wire harness 60 and the second wire harness 70 from directly contacting the first side 101a, so as to reduce the immersion of the first wire harness 60 and the second wire harness 70 into water.
In some embodiments, as shown in fig. 11, the protrusion 1015 is provided with a first opening 1015a, and the first opening 1015a is used for disposing the connector 90.
As shown in fig. 6 and 12, the handle assembly 120 facilitates grasping of the battery pack by a user. The handle assembly 120 includes a handle bracket 1201. In some embodiments, an edge of the handle holder 1201 is mounted in the first recess 1021, thereby enabling connection of the handle holder 1201 with the first housing 10.
As shown in fig. 13 and 14, the cell module 20 is electrically connected to the circuit board 30, the cell module 20 includes a plurality of cells 21 stacked in sequence, and each cell 21 includes an electrode assembly 211, a cell casing 212 for accommodating the electrode assembly, and a tab 213 connected to the electrode assembly. Optionally, the tabs include positive tabs and negative tabs, and a plurality of positive tabs and negative tabs between the battery cells are connected.
In some embodiments, the circuit board 30 is a Battery Management System (BMS) board, and the BMS board can be used to control data such as voltage of the Battery cell and monitor whether water enters the first housing 10.
In some embodiments, a conductive sheet 301 is disposed on a side of the circuit board 30 away from the cell module 20, the conductive sheet 301 is electrically connected to the circuit board 30, and the conductive sheet 301 is connected to the tab 213 of the cell, so as to achieve electrical connection between the cell module 20 and the circuit board 30.
In some embodiments, the circuit board 30 is provided with a second through hole 302 and a third through hole 303, the second through hole 302 and the third through hole 303 are located at two sides of the conductive sheet 301, and the second through hole 302 and the third through hole 303 facilitate a tab of the battery cell to pass through and be connected with the conductive sheet 301, so as to achieve electrical connection between the battery cell module 20 and the circuit board 30. It can be understood that the connection manner between the battery cell module 20 and the circuit board 30 is not limited to the manner of using the direct connection between the conductive sheet 301 and the tab, and may also be other manners, for example: connected by means of electrically conductive wires.
In some embodiments, a control module 304 is disposed on the circuit board 30, the control module 304 is electrically connected to the first detection module 40, and after receiving a detection signal of the first detection module 40, the control module 304 determines whether moisture enters the first housing 10. It is understood that the control module 304 includes a control chip, the control chip is electrically connected to the first conducting portion 4011 and the second conducting portion 4012 of the first detecting module 40, when the first conducting portion 4011 and the second conducting portion 4012 are conducted under the action of water, the control chip receives a conducting signal between the first conducting portion 4011 and the second conducting portion 4012, and determines that water enters the first housing 10.
As shown in fig. 15 to 17, the first detection module 40 is disposed on the first side wall 101 and located on one side of the first side surface 101a, the first detection module 40 is located between the battery cell module 20 and the first side surface 101a, and the first detection module 40 detects moisture in the first casing 10. Along the third direction Z, the projection of the connector 90 extends beyond the projection of the first detection module 40 in the first direction X, and the first detection module 40 detects moisture in the first housing 10, so as to reduce the risk of moisture damaging the connector 90. Along third direction Z, the projection of third pencil 80 extends beyond the projection of first detection module 40 in first direction X, and moisture in first casing 10 is detected to first detection module 40, reduces the risk that moisture damages third pencil 80.
In some embodiments, the first detecting module 40 includes, but is not limited to, a resistive humidity sensor (not shown), and measures the humidity inside the first housing 10 by using the principle that the electrical characteristic (e.g., resistance value) of the humidity sensor changes with the change of the humidity.
In some embodiments, as shown in fig. 8, the first detecting module 40 is located between the first protrusion 1012 and the second protrusion 1013 along the second direction Y, the first detecting module 40 enters between the first protrusion 1012 and the second protrusion 1013 from the third direction Z, the position of the first detecting module 40 is limited on the first sidewall 101, and the first detecting module 40 can detect when the first sidewall 101 enters moisture.
In some embodiments, along the first direction X, a distance from an end of the first detection module 40 close to the cell module 20 to the first side surface 101a is a second distance h2, and the second distance h2 is smaller than the first distance h1, so that moisture entering the first casing 10 from the first side wall 101 can be detected by the first detection module 40 when approaching the protruding block 1015, and the moisture is limited from contacting the first wire harness 60 and the second wire harness 70 on the protruding block 1015, thereby reducing a short circuit in the battery pack.
In some embodiments, as shown in fig. 18-20, the first detecting module 40 includes a detecting device 401 and a supporting plate 402, the supporting plate 402 is disposed on a side of the detecting device 401 close to the first side 101a, and the detecting device 401 is electrically connected to the control module 304. The detection apparatus 401 is provided with a first conductive section 4011 and a second conductive section 4012, the first conductive section 4011 and the second conductive section 4012 are in a separated state, and the first conductive section 4011 and the second conductive section 4012 are not electrically connected. When water enters the first casing 10 and the first and second conductive sections 4011 and 4012 are brought into communication, the control module 304 determines that moisture enters the first casing 10 by a communication signal between the first and second conductive sections 4011 and 4012. Optionally, the control module 304 controls the stop of charging or discharging of the battery pack 01 after detecting a communication signal between the first conducting part 4011 and the second conducting part 4012. In the first direction X, the support plate 402 is disposed between the third protrusion 1014 and the detection device 40. Optionally, the supporting plate 402 has elasticity to further protect the detecting device 401, and optionally, the supporting plate 402 includes foam.
The method of detecting moisture by the first detection module 40 is not limited to the above detection method, and other detection methods may be used, for example: the moisture is detected by using a sensor, optionally, the sensor is a temperature and humidity sensor, the temperature and humidity sensor can be used for detecting the moisture in the first casing 10 and the internal temperature in the first casing 10, when the internal temperature in the first casing 10 is high, the temperature and humidity sensor can detect the moisture in time, and transmits an abnormal signal to the control module 304.
One end of the first wire harness 60 is connected to the first conductive portion 4011, the other end of the first wire harness 60 is electrically connected to the control module 304, one end of the second wire harness 70 is connected to the second conductive portion 4012, and the other end of the second wire harness 70 is electrically connected to the control module 304, so that the control module 304 is connected to the first detection module 40.
In some embodiments, the first wire harness 60 and the second wire harness 70 are both connected to a detection module 40 by welding, the first wire harness 60 and the second wire harness 70 may also be connected to the first detection module 40 by other methods, a first plugging protrusion (not shown) is disposed on the first detection module 40, the first plugging protrusion is connected to the first conductive portion 4011, the first plugging interface is plugged into the first plugging protrusion, so that the first wire harness 60 and the first conductive portion 4011 can be electrically connected, and meanwhile, similar connection methods between modules are convenient for disconnecting the first wire harness 60 and the first conductive portion 4011. Similarly, a second plugging protrusion (not shown) is disposed on the first detecting module 40, the second plugging protrusion is connected to the second conductive portion 4012, and the second harness 70 can be electrically connected to the second conductive portion 4012 by plugging the second plugging interface into the second plugging protrusion.
As shown in fig. 4 and fig. 21 to fig. 23, one end of the third wire harness 80 is electrically connected to the circuit board 30, and the other end of the third wire harness 80 is connected to the connector 90, so as to achieve electrical connection between the circuit board 30 and the connector 90, along the first direction X, the third wire harness 80 is located between the first detection module 40 and the cell module 20, the connector 90 is disposed in the first opening 1015a, and the connector 90 is used for plugging an external electrical device, so as to achieve electrical connection between the external electrical device and the battery pack. It should be understood that the connection manner of the connector 90 and the first housing 10 includes, but is not limited to: screwing, welding, riveting, etc., wherein the connector 90 is easily detached from the first housing 10 by means of screwing.
In some embodiments, the third wire harness 80 includes a first portion 81 and a second portion 82, the first portion 81 is disposed on the circuit board 30, the second portion 82 is disposed on the connector 90, and the connection of the circuit board 30 and the connector 90 is achieved by the connection of the second portion 82 and the first portion 81. It is understood that the connection manner of the first portion 81 and the second portion 82 includes, but is not limited to: welding, spiro union, lock joint etc. wherein utilize the connected mode of lock joint convenient to connector 90 with circuit board 30 disconnection, and connector 90 with on first casing 10 is the fixed basis of spiro union, first portion 81 and second portion 82 adopt the connected mode of lock joint, are convenient for with connector 80 follows dismantle to change or maintain on the battery package. Optionally, the first portion 81 includes a first plugging end, the second portion 82 includes a second plugging end, and the first portion 81 and the second portion 82 are connected through the first plugging end and the second plugging end to achieve electrical conduction therebetween.
In some embodiments, to reduce the moisture entering the first casing 10 from contacting the third wiring harness 80, the third wiring harness 80 is located between the first detection module 40 and the cell module 20 along the first direction X.
The second casing 50 is wrapped around the battery cell module 20, the second casing 50 is located between the first casing 10 and the battery cell module 20, and the second casing 50 is used for reducing damage to the battery cell module 20 caused by moisture entering the first casing 10.
In some embodiments, to reduce the damage to the circuit board 30 caused by moisture entering the first casing 10, the second casing 50 covers the circuit board 30.
In some embodiments, the inner side wall of the second casing 50 is provided with a second recess 50a, the second recess 50a is used for installing an edge of the battery cell along the third direction Z, and meanwhile, the second recess 50a can limit the battery cell from shaking in the second casing 50, so as to reduce collision between the battery cell and the second casing 50.
The first buffer pad 100 is disposed at a contact position between the first casing 10 and the second casing 50, and when the battery pack falls, the first buffer pad 100 can play a role in buffering, so that the collision between the first casing 10 and the second casing 50 is reduced, and meanwhile, the stability between the internal components of the battery pack is improved. Optionally, the shore C hardness of the first cushioning pad 100 is between 65 degrees and 85 degrees.
As shown in fig. 25 and 26, the second buffer pad 130 and the third buffer pad 140 are disposed on two sides of the cell module 20, and the second buffer pad 130 and the third buffer pad 140 are both located between the cell module 20 and the second casing 50. When the battery pack falls, the second buffer pad 130 and the third buffer pad 140 play a role in buffering and protecting the battery core module 20 inside the battery pack, so that the direct collision between the battery core module 20 and the second shell 50 is reduced, and the damage is avoided.
The second detection module is disposed outside the second casing 50, the second detection module is connected to the control module 304, and along the first direction X, the second detection module is located between the battery cell module 20 and the first side surface 101a, when moisture entering the first casing 10 is about to enter the second casing 50, the moisture can be detected by the second detection module, and the structure and function of the second detection module can refer to the first detection module 40, which is not described in detail herein.
In the embodiment of the present application, by providing a cell module 20, a circuit board 30, a first casing 10 and a first detection module 40, where the cell module 20 includes a plurality of cells stacked in sequence, the circuit board 30 is electrically connected to the cell module 20, the circuit board 30 and the first detection module 40 are all accommodated in the first casing 10, the first casing 10 is provided with a first side wall 101, the first side wall 101 has a first side surface 101a facing one side of the cell module 20, in addition, the first detection module 40 is disposed in the first side surface 101a, and the first detection module 40 is located between the cell module 20 and the first side surface 101a, when the battery pack is used in rainy days or other situations with water, the first detection module 40 disposed in the battery pack detects water in the first casing 10, the water in the first shell 10 is determined, so that a user can timely clear away the water in the battery pack, the internal short circuit of the battery pack is reduced, the service life of the battery pack is prolonged, and the normal use of the electric equipment is ensured.
The application also provides an embodiment of consumer 02, consumer include above battery package, consumer includes but not limited to agricultural unmanned aerial vehicle, two-wheeled electric motor car, energy storage equipment, handheld electric tool etc. and the function and the structure of battery package can refer to above-mentioned embodiment, and the repetition is no longer repeated here one by one.
As shown in fig. 27, in the case that the electric equipment is a two-wheeled electric vehicle, a connection terminal 021 is provided on the electric equipment, and the battery pack 01 is connected to the connection terminal 021 on the electric equipment 02 through the connector 90, so that the electric conduction between the battery pack 01 and the electric equipment 02 is realized.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.
Claims (13)
1. A battery pack, comprising: the battery cell module comprises a battery cell module, a circuit board and a first shell, wherein the circuit board is electrically connected with the battery cell module, the battery cell module and the circuit board are both contained in the first shell,
the first shell is provided with a first side wall, and the first side wall is provided with a first side surface facing one side of the battery cell module;
the battery pack further comprises a first detection module contained in the first shell, the first detection module is electrically connected with the circuit board, the first detection module is arranged on the first side wall and located on one side of the first side face, the first detection module is located between the battery cell module and the first side face, and the first detection module detects moisture entering the first shell.
2. The battery pack according to claim 1,
the circuit board is provided with a control module;
the first detection module comprises a detection device, the detection device is electrically connected with the control module, the detection device is provided with a first conductive part and a second conductive part, the first conductive part and the second conductive part are in a separated state, the first conductive part and the second conductive part are communicated through water, and the control module determines that moisture enters into the first shell through a communication signal between the first conductive part and the second conductive part.
3. The battery pack according to claim 2,
the battery pack comprises a first wire harness and a second wire harness, one end of the first wire harness is connected to the first conductive part, the other end of the first wire harness is electrically connected to the control module, one end of the second wire harness is connected to the second conductive part, and the other end of the second wire harness is electrically connected to the control module.
4. The battery pack according to claim 1,
the first side surface extends along a first direction to form a first protruding part, and the first protruding part faces the battery cell module;
the first side surface extends along the first direction to form a second protruding part, and the second protruding part and the first protruding part are arranged at intervals;
the first detection module is connected with the first protrusion and the second protrusion, and the first detection module is located between the first protrusion and the second protrusion along a second direction.
5. The battery pack according to claim 4,
a first section extends towards a second direction from one end of the first protruding part far away from the first side surface, and the second direction is perpendicular to the first direction;
the end, far away from the first side face, of the second protruding portion extends to a second section in a direction opposite to the second direction, the first detection module enters a space between the first protruding portion and the second protruding portion from a third direction, the first section and the second section abut against the end, far away from the first side face, of the first detection module, and the third direction is perpendicular to the first direction and the second direction.
6. The battery pack according to claim 4,
the first side surface extends along the first direction to form a third protruding portion, the third protruding portion is located between the first protruding portion and the second protruding portion along the second direction, and the end portion, far away from the first side surface, of the third protruding portion is in contact connection with one end, close to the first side surface, of the first detection module.
7. The battery pack according to claim 4,
the first side surface extends along the first direction to form a protruding block, and the distance from the end part, close to one side of the battery cell module, of the protruding block to the first side surface along the first direction is a first distance h 1;
along the first direction, the distance from the end part of the first detection module close to one side of the battery cell module to the first side surface is a second distance h2, and the second distance h2 is smaller than the first distance h 1.
8. The battery pack according to claim 7,
the protruding block is provided with a first opening;
the battery pack further comprises a connector, and the connector is arranged at the first opening;
the battery pack further comprises a third wire harness, one end of the third wire harness is electrically connected with the circuit board, the other end of the third wire harness is connected with the connector, and the third wire harness is located between the first detection module and the battery cell module along the first direction.
9. The battery pack according to claim 2,
the battery pack further comprises a second shell, the second shell is wrapped on the battery cell module, and the second shell is located between the first shell and the battery cell module.
10. The battery pack according to claim 9,
the battery pack comprises a first buffer pad, the first buffer pad is arranged at a contact position between the first shell and the second shell, and the Shore C hardness of the first buffer pad is 65-85 degrees.
11. The battery pack according to claim 9,
the battery pack further comprises a second detection module, the second detection module is arranged on the second shell and connected with the control module, and the second detection module is located between the battery cell module and the first side face along the first direction.
12. The battery pack according to claim 9,
the second shell covers the circuit board.
13. An electrical device comprising the battery pack of any one of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122228484.3U CN216413142U (en) | 2021-09-14 | 2021-09-14 | Battery package and consumer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122228484.3U CN216413142U (en) | 2021-09-14 | 2021-09-14 | Battery package and consumer |
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| CN216413142U true CN216413142U (en) | 2022-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024007219A1 (en) * | 2022-07-06 | 2024-01-11 | 东莞新能安科技有限公司 | Battery module and electrical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024007219A1 (en) * | 2022-07-06 | 2024-01-11 | 东莞新能安科技有限公司 | Battery module and electrical device |
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