CN218975635U - Electrochemical device and electric equipment - Google Patents

Abstract

The application discloses electrochemical device and consumer, electrochemical device includes electric core module, first casing, second casing, visor and portable subassembly. The second shell is detachably connected with the first shell in a sealing mode, an accommodating space is formed by enclosing the second shell and the first shell, the accommodating space is used for accommodating the battery cell module, and the second shell is provided with a yielding hole so as to electrically connect the battery cell module with a member outside the accommodating space. The protective cover is connected with the second shell and is configured to cover the abdication hole and the dodge abdication hole. The portable component comprises an operation piece and a fixing piece, wherein the operation piece is connected with the fixing piece, and the fixing piece is connected with the first shell in a sealing way. This application seals first casing and second casing to letting the mouth sealed to and seal portable subassembly department, realize the effect to battery omnidirectional is sealed to promote electrochemical device's waterproof nature and dust resistance, and then promoted electrochemical device's security and reliability.

Description

Electrochemical device and electric equipment

Technical Field

The application relates to the technical field of energy storage, in particular to an electrochemical device and electric equipment.

Background

With the increase of the demands of consumers for outdoor electric equipment, the consumers, power supplies and the like are required to be suitable for environments which are severe for electric appliances, such as picnic, seaside, lake side, river side camping and the like.

The performance such as dustproof, waterproof and heat dissipation of the power supply device such as the battery pack is difficult to adapt to outdoor environments such as much dust, humidity or high temperature, and the safety and reliability of the battery are low.

Disclosure of Invention

In view of this, the present application provides an electrochemical device with improved safety and reliability.

Some embodiments of the present application provide an electrochemical device including a cell module, a first housing, a second housing, a protective cover, and a portable assembly. The second shell is detachably connected with the first shell in a sealing mode, an accommodating space is formed by enclosing the second shell and the first shell, the accommodating space is used for accommodating the battery cell module, and the second shell is provided with a yielding hole so as to electrically connect the battery cell module with a member outside the accommodating space. The protective cover is connected with the second shell and is configured to cover the abdication hole and the dodge abdication hole. The portable assembly includes a securing member sealingly coupled to the first housing.

Above-mentioned seal first casing and second casing to the mouth of stepping down is sealed to and seal portable subassembly department, realize the effect to the battery omnidirectional is sealed to promote electrochemical device's waterproof nature and dust resistance, and then promoted electrochemical device's security and reliability.

In some embodiments, the electrochemical device further includes a first connection member detachably connecting the second case to the first case, and a first seal member is provided between the second case and the first case.

The first sealing piece increases the sealing performance of the combination of the first shell and the second shell, and further reduces the possibility that dust and water enter the accommodating space.

In some embodiments, the first connecting piece includes a first stop section and a first connecting section that connect gradually, and the first stop section is located the second casing and deviates from the side of first casing, and is equipped with the second sealing member between first stop section and the second casing, and first connecting section wears to locate the second casing and is connected with first casing.

The second sealing piece can improve the tightness between the first connecting section and the second shell, and reduce the possibility that dust or water enters the accommodating space from a gap between the second shell and the first connecting section. In addition, the first connecting section of the first connecting piece penetrates through the second shell to be connected with the first shell, so that the installation is facilitated, and the bonding strength between the first shell and the second shell can be improved.

In some embodiments, the first housing is provided with a receiving cavity and an opening communicating with the receiving cavity, the second housing covers the opening to enclose with the first housing to form a receiving space, the first sealing member is disposed around the opening, and the second sealing member is disposed around the first connecting section.

The above arrangement can further improve the contact area between the first sealing member and the first and second cases, and the contact area between the second sealing member and the second case and the first connecting member, thereby further improving the sealability of the electrochemical device.

In some embodiments, the protective cover includes a mounting portion, a connecting portion, and a capping portion, where the mounting portion is located in the accommodating space and connected with the second housing, the connecting portion is connected with the mounting portion and penetrates through the abdication hole, and the capping portion is flexibly connected with the connecting portion and located at least partially outside the accommodating space, and the capping portion can move relative to the connecting portion to be capable of capping the abdication hole and avoiding the abdication hole.

The connecting part of the protective cover and the second shell is arranged in the accommodating space, so that the occupied space of the protective cover outside the accommodating space is reduced, the occupied space of the whole electrochemical device is reduced, and the energy density of the electrochemical device is improved. The flexible connection of the sealing cover part and the connecting part is beneficial to the switching of the sealing cover part between the state of avoiding holes of the sealing cover and the state of opening the avoiding holes, so that the sealing cover is convenient for users to use.

In some embodiments, the electrochemical device further comprises a tab disposed in the relief hole, the tab electrically connected to the cell module, at least a portion of the tab positioned between the mounting portion and the second housing such that the mounting portion and the second housing sandwich the tab.

The connector is clamped and fixed by the mounting part and the second shell, a structure for independently fixing the connector is omitted, the structure of the electrochemical device is simplified, and weight reduction of the electrochemical device is facilitated.

In some embodiments, the portable assembly further comprises an operating member, the operating member is connected with the fixing member, the fixing member comprises a second stop section and a second connecting section which are sequentially connected, the second stop section is located on one side, away from the first shell, of the operating member, and the second connecting section penetrates through the operating member and is connected with the first shell in a sealing mode.

In some embodiments, the portable assembly further includes a support ring disposed between the second stop section and the first housing, the support ring passing through the operating member, and a first mating member disposed in the receiving space. The second connecting section penetrates through the first shell and is connected with a first matching piece in the accommodating space, and a third sealing piece is arranged between the first matching piece and the first shell.

When the first matching piece is connected with the second connecting section, the second stop section has a trend of moving towards the first shell, and the supporting ring is in contact with the second stop section at the moment, so that a gap is reserved between the second stop section and the first shell, an operating piece can move, and a user can hold the operating piece conveniently. The mode that second linkage segment and first cooperation spare are connected is favorable to promoting the steadiness of being connected between portable subassembly and the first casing, and the leakproofness between second linkage segment and the first casing is favorable to improving to the setting of third sealing member, and then reduces dust and water and get into accommodation space's risk.

In some embodiments, the operation member is provided with two strip-shaped holes arranged at intervals, the strip-shaped holes extend along the arrangement direction of the two strip-shaped holes, the number of the fixing members is two, and the second connecting section of each fixing member penetrates through one strip-shaped hole.

The arrangement of the strip-shaped holes enables the two ends of the operating piece to move towards directions close to each other and away from each other, so that when a user holds the operating piece, the operating piece can deform along the arrangement direction of the two strip-shaped holes, and when the force applied to the operating piece is released, the operating piece can be reset, and the possibility of interference with other components when the electrochemical device is installed is reduced.

In some embodiments, the battery cell module further includes a battery cell and two supports, where the supports are provided with a first connection column and a second connection column, and the first connection column of one support is connected with the second connection column of the other support in a clamping manner, so that the two supports enclose and fix the battery cell.

The two brackets can be connected by the clamping of the first connecting column and the second connecting column, so that the installation of the two brackets is facilitated, and the fixation of the battery cell is facilitated.

In some embodiments, one side of the support is in contact with the battery cell, the battery cell is electrically connected with the nickel plate, the battery cell module further comprises a heat conducting structure, the heat conducting structure is in contact with the battery cell or the nickel plate, and the heat conducting structure is further in contact with the first shell and/or the second shell.

The heat conduction structure is favorable for improving the efficiency of heat conduction generated by the battery cell or the nickel sheet to the first shell and the second shell, and further improving the heat dissipation effect of the battery cell module.

In some embodiments, one side of the support is in contact with the battery cell, the other side of the support is provided with a nickel sheet, the nickel sheet is electrically connected with the battery cell, and the battery cell module further comprises a heat conducting silica gel and an aluminum sheet which are in contact, wherein the heat conducting silica gel is in contact with the nickel sheet, and the aluminum sheet is in contact with the first shell and/or the second shell.

The heat generated by the battery cell or the nickel sheet is sequentially conducted to the heat conducting silica gel, the aluminum sheet and the first shell or the second shell. The heat conduction silica gel is the good flexible material of heat conductivity, can play the effect of damping and buffering to thereby be favorable to laminating with the nickel piece, can improve nickel piece heat outgoing's speed, the heat conductivity of aluminum sheet is good, further promotes the heat conduction to the speed of first casing or second casing, improves the radiating efficiency of electric core module.

In some embodiments, one side of the support is in contact with the battery cell, the other side of the support is provided with a nickel sheet, the nickel sheet is electrically connected with the battery cell, and one side of the support, which is away from the battery cell, is also provided with a positioning protrusion which is matched with the nickel sheet in a positioning way.

In some embodiments, the cell module further comprises a circuit board, one side of the support is in contact with the cell, the other side of the support is provided with a nickel sheet, the nickel sheet is electrically connected with the cell, the nickel sheet is provided with at least two contact heads, and the contact heads are electrically connected with the circuit board.

According to the contact head of the nickel sheet, the nickel sheet can be used for series connection or parallel connection between different electric cores, and can be used as a total positive electrode and a total negative electrode of a plurality of electric cores by being combined with the copper sheet, so that the universality of the nickel sheet is improved.

In some embodiments, the cell module further comprises a heat conducting block mounted in the two brackets and in contact with the cell, the heat conducting block further in contact with the first housing and/or the second housing.

The heat conducting block is favorable for improving the heat dissipation speed of the battery cell, can be suitable for the battery cell module with high-rate discharge, reduces the risk of overhigh heat of the battery cell module with high-rate discharge, and improves the reliability of the battery cell module

In some embodiments, the number of cell modules is at least two, and a heating film is disposed between any two adjacent cell modules.

The heating film heats up and is favorable for quick starting of the battery cell module, thereby facilitating normal use of the battery in a low-temperature environment.

In some embodiments, the first housing is provided with a receiving cavity and an opening communicated with the receiving cavity, and the first housing is further provided with a limiting piece located in the receiving cavity, and the limiting piece extends towards the receiving cavity along the opening. One side of the battery core module is contacted with the limiting piece, and the other side of the battery core module is contacted with the cavity wall of the first shell.

The limiting piece plays a role in limiting the battery cell module, and reduces movement of the battery cell module when the electrochemical device is impacted. The battery cell module can also play a guiding role when being installed in the accommodating space or removed from the accommodating space, so that the battery cell module can slide into the accommodating space or slide out of the accommodating space along the direction of the opening towards the accommodating cavity, and the battery cell module is convenient to detach and install.

In addition, the application also provides electric equipment for improving safety and reliability

The application provides electric equipment, which comprises an equipment main body, wherein the electrochemical device of any embodiment is arranged on the equipment main body.

The waterproof performance and the dustproof performance of the electrochemical device of the electric equipment are improved, so that the capacity of the electric equipment for adapting to severe environments is enhanced, and the safety and the reliability of the electric equipment are further improved.

The second shell and the first shell of the electrochemical device are detachably connected in a sealing mode, and the second shell is provided with a yielding hole so as to be electrically connected with a member outside the accommodating space. The protective cover is connected with the second shell and is configured to cover the abdication hole and the dodge abdication hole. The portable component comprises an operation piece and a fixing piece, wherein the operation piece is connected with the fixing piece, and the fixing piece is connected with the first shell in a sealing way. Through sealing first casing and second casing to the mouth of stepping down is sealed to and seal portable subassembly department, realize the effect to battery omnidirectional is sealed to promote electrochemical device's waterproof nature and dust resistance, and then promoted electrochemical device's security and reliability.

Drawings

Fig. 1 is a schematic structural view of an electrochemical device according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of the electrochemical device of fig. 1.

Fig. 3 is an exploded view of the electrochemical device of fig. 1.

Fig. 4 is a schematic structural diagram of a battery cell module according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a bracket according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of two brackets according to an embodiment of the present application.

Fig. 7 is a partial cross-sectional view of an electrochemical device according to an embodiment of the present application.

Fig. 8a is a schematic structural diagram of a nickel sheet according to an embodiment of the present application.

Fig. 8b is a schematic structural diagram of a combination of a nickel sheet and a copper sheet according to an embodiment of the present disclosure.

Fig. 9 is a schematic diagram of two battery cell modules and a heating film according to an embodiment of the present disclosure.

Fig. 10 is a schematic diagram of a bracket combination of two battery cell modules according to an embodiment of the present application.

Fig. 11 is a cross-sectional view of a battery cell module according to an embodiment of the present disclosure.

Fig. 12 is a schematic structural diagram of a heat conducting block according to an embodiment of the present application.

Fig. 13 is a schematic view illustrating a partial explosion of an electrochemical device according to an embodiment of the present application.

Fig. 14 is a cross-sectional view of an electrochemical device according to an embodiment of the present application.

Fig. 15 is a partial enlarged view of a portion a in fig. 14.

Fig. 16 is a schematic partial cross-sectional view of an electrochemical device according to an embodiment of the present application.

Fig. 17 is a schematic structural view of an electrochemical device according to an embodiment of the present application.

Description of the main reference signs

Electrochemical device 100

Battery cell module 10

Cell 11

Bracket 12

Joint 13

Circuit board 14

First connecting column 121

Second connecting column 122

Groove 123

Through hole 124

Positioning protrusion 125

First housing 20

First wall 21

Second wall 22

Third wall 23

Fourth wall 24

Limiting piece 25

Accommodating chamber 201

Opening 202

Second housing 30

Relief hole 31

Accommodation space 230

Protective cover 40

Mounting portion 41

Connection portion 42

Cover part 43

Hand held assembly 50

Operating element 51

Strip-shaped hole 511

Fixing member 52

Second stop segment 521

Second connecting section 522

Support ring 53

First mating element 54

Second mating element 55

First connector 60

First stop section 61

First connecting section 62

Screw 70

Heating film 80

Heat conducting block 90

Nickel sheet 101

Positioning hole 1011

Contact 101a

Copper sheet 101b

Heat conduction silica gel 102

Aluminum sheet 103

First seal 10a

Second seal 10b

Third seal 10c

First direction X

Second direction Y

Third direction Z

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like are used herein for illustrative purposes only.

The term "vertical" is used to describe an ideal state between two components. In the actual production or use state, there may be an approximately vertical state between the two components. For example, in conjunction with the numerical description, perpendicular may refer to an angle between two straight lines ranging between 90++10°, perpendicular may also refer to a dihedral angle between two planes ranging between 90++10°, and perpendicular may also refer to an angle between a straight line and a plane ranging between 90++10°. The two components described as "perpendicular" may be considered "straight" or "planar" as they are considered "straight" or "planar" in that they are not strictly straight or planar, but may be substantially straight or planar in that they extend in a macroscopic manner.

It should be noted that when a certain parameter is greater than, equal to, or less than a certain endpoint, it should be understood that the endpoint allows a tolerance of ±10%, for example, a to B is greater than 10, and it should be understood that a case where a to B is greater than 9 is included, and a case where a to B is greater than 11 is also included.

It should be noted that "electrically connected" herein is understood to mean that two members are connected and electrically connected by direct contact, soldering, or wire connection.

The term "plurality" as used herein refers to two or more than two, unless specifically stated otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The application discloses an electrochemical device, the electrochemical device includes electric core module, first casing, second casing, visor and portable subassembly. The second shell is detachably connected with the first shell in a sealing mode, an accommodating space is formed by enclosing the second shell and the first shell, the accommodating space is used for accommodating the battery cell module, and the second shell is provided with a yielding hole so as to electrically connect the battery cell module with a member outside the accommodating space. The protective cover is connected with the second shell and is configured to cover the abdication hole and the dodge abdication hole. The portable component comprises an operation piece and a fixing piece, wherein the operation piece is connected with the fixing piece, and the fixing piece is connected with the first shell in a sealing way.

Above-mentioned seal first casing and second casing to the mouth of stepping down is sealed to and seal portable subassembly department, realize the effect to the battery omnidirectional is sealed to promote electrochemical device's waterproof nature and dust resistance, and then promoted electrochemical device's security and reliability.

Some embodiments of the present application will be described below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 to 3, an electrochemical device 100 is provided, and the electrochemical device 100 includes a battery module 10, a first housing 20, a second housing 30, a protective cover 40 and a portable assembly 50. The first housing 20 and the second housing 30 enclose an accommodating space 230, the accommodating space 230 is used for accommodating the cell module 10, and the protective cover 40 and the portable module 50 are mounted on the first housing 20 or the second housing 30.

Referring to fig. 4, the cell module 10 includes a cell 11 and two supports 12 for fixing the cell 11, where the two supports 12 are detachably connected, one support 12 abuts against one side of the cell 11, and the other support 12 abuts against the other side of the cell 11, so as to clamp and fix the cell 11.

In some embodiments, referring to fig. 4 and 5, the bracket 12 is provided with a groove 123 for limiting the battery cell 11, and at least part of the battery cell 11 is accommodated in the groove 123. The shape of the recess 123 may be adapted to the shape of the cell 11, and the cell 11 is illustratively a cylindrical cell, and the recess 123 is correspondingly a circular recess 123.

In some embodiments, referring to fig. 4 and 5, the bracket 12 is provided with a through hole 124 exposing the battery cell 11, so that the battery cell 11 fixed to the bracket 12 can be electrically connected with other members outside the bracket 12.

In some embodiments, referring to fig. 5 and 6, the brackets 12 are provided with a first connecting post 121 and a second connecting post 122, and the first connecting post 121 of one bracket 12 of the two brackets 12 is in snap connection with the second connecting post 122 of the other bracket 12, so that the two brackets 12 enclose and fix the battery cell 111.

In some embodiments, referring to fig. 4 and 6, a positioning protrusion 125 is provided on a side of the support 12 facing away from the battery cell 11, and the positioning protrusion 125 is used for positioning with other members outside the support 12.

In some embodiments, the number of the battery cells 11 may be one, two or more, and is not limited herein.

Referring to fig. 7, the battery 11 is connected with a nickel plate 101, the nickel plate 101 is located at a side of the bracket 12 away from the battery 11, and the nickel plate 101 contacts the battery 11 to be electrically connected. In some embodiments, nickel plate 101 is in contact with multiple cells 11 simultaneously, so that multiple cells 11 can be connected in series or in parallel through nickel plate 101. The cell module 10 further comprises a circuit board 14 located in the accommodating space 230, the nickel sheet 101 is provided with a contact 101a, the contact 101a is electrically coupled with the circuit board 14 and the like, the effect that the circuit board 14 collects the voltage of the cell 11 is achieved, and the reliability of the cell module 10 is further improved.

In the embodiment provided with the positioning protrusions 125, the nickel sheet 101 may be provided with corresponding positioning holes 1011, so that the positioning protrusions 125 extend into the positioning holes 1011, thereby enabling the positioning protrusions 125 to perform a positioning function on the nickel sheet.

In some embodiments, referring to fig. 8a and 8b, the nickel sheet 101 is provided with at least two contact heads 101a, and by adding the contact heads 101a of the nickel sheet 101, the nickel sheet 101 can be used for series connection or parallel connection between different electric cells 11, and can be combined with the copper sheet 101b to serve as a total positive electrode and a total negative electrode of a plurality of electric cells 11, so that the universality of the nickel sheet 101 is improved. And can also avoid the nickel sheet 101 corresponding to different contact heads 101a from being provided with different manufacturing molds, thereby playing the roles of saving mold opening and improving manufacturing efficiency.

In some embodiments, the cell module 10 further includes a thermally conductive structure (not numbered) in contact with the cell 11 or the nickel plate 101, and in contact with the first housing 20 or the second housing 30. Through setting up heat conduction structure, be favorable to promoting the heat conduction that electricity core 11 or nickel piece 101 produced to first casing 20 and second casing 30's efficiency, and then promote the radiating effect of electricity core module 10.

In some embodiments, referring to fig. 7, the heat conductive structure of the battery module 10 includes a heat conductive silica gel 102 and an aluminum sheet 103 in contact, the heat conductive silica gel 102 is in contact with the nickel sheet 101, and the aluminum sheet 103 is in contact with the first housing 20 or the second housing 30. So that heat generated from the battery cell 11 or the nickel sheet 101 is sequentially transferred to the heat conductive silicone 102, the aluminum sheet 103, and the first case 20 or the second case 30. The heat conduction silica gel 102 is flexible material with good heat conductivity, can play the effect of damping and buffering to thereby be favorable to laminating with nickel piece 101, can improve nickel piece 101 heat outgoing's speed, aluminum sheet 103's heat conductivity is good, further promotes the speed that heat conducted to first casing 20 or second casing 30, improves the radiating efficiency of electric core module 10.

In some embodiments, referring to fig. 9, the electrochemical device 100 includes a plurality of cell modules 10, the plurality of cell modules 10 being electrically connected. In embodiments where the nickel plate 101 is provided with two contact heads 101a, the nickel plate 101 can be adapted for use with both a single cell module 10 and multiple cell modules 10.

In some embodiments, referring to fig. 9 and 10, the electrochemical device 100 further includes two screws 70 penetrating the supports 12 of the two cell modules 10, wherein the opposite ends of the screws 70 are provided with internal threads, one end of each screw 70 is fixedly connected with the support 12 of one of the cell modules 10 through a bolt, and the other end of each screw 70 is fixedly connected with the support 12 of the other cell module 10 through a bolt, so that the two cell modules 10 are fixedly connected. This arrangement is advantageous for improving the impact resistance of the battery cell module 10, thereby improving the safety and reliability of the electrochemical device 100.

In some embodiments, referring to fig. 3 and 9, the electrochemical device 100 further includes a heating film 80, the heating film 80 is disposed between the two cell modules 10, and the heating film 80 is electrically connected to the circuit board 14 in the accommodating space 230. When the battery is used, the heating film 80 is heated up, so that the battery module 10 can be started quickly, and the battery can be used normally in a low-temperature environment conveniently. In some embodiments, the heating film 80 is rated at 48V (volts) and 200W (watts).

In other embodiments, referring to fig. 11, the heat conducting structure of the cell module 10 includes a heat conducting block 90, where the heat conducting block 90 is installed in two brackets 12 and is in contact with the cell 11, and the heat conducting block 90 is also in contact with the first housing 20 or the second housing 30, so that heat generated by the cell 11 is directly conducted to the first housing 20 or the second housing 30 through the heat conducting block 90 for heat dissipation. The heat conduction block 90 is beneficial to improving the heat dissipation speed of the battery cell 11, and can be suitable for the battery cell module 10 with high-rate discharge, so that the risk of overhigh heat of the battery cell module 10 with high-rate discharge is reduced, and the reliability of the battery cell module 10 is improved.

In some embodiments, referring to fig. 11 and 12, the number of the battery cells 11 is plural, the battery cell module 10 further includes a heat conducting block 90, the heat conducting block 90 is disposed between the adjacent battery cells 11, the heat conducting block 90 is in contact with the adjacent battery cells 11, and the heat conducting block 90 is further in contact with the first housing 20 or the second housing 30, so that heat generated by the battery cells 11 is conducted to the first housing 20 or the second housing 30 through the heat conducting block 90 to dissipate heat.

In some embodiments, referring to fig. 11 and 12, the battery cells 11 are configured as cylindrical battery cells, the plurality of battery cells 11 are spaced apart, and the shape of the heat conducting block 90 is adapted to the gaps between the plurality of battery cells 11, so as to fill the gaps between the plurality of battery cells 11, thereby being beneficial to improving the compactness of the battery cell module 10 and the contact area between the heat conducting block 90 and the battery cells 11, and further improving the heat conducting efficiency.

In some embodiments, the heat conducting block 90 is made of aluminum or aluminum alloy to enhance the heat conducting effect.

Referring to fig. 13, the first housing 20 includes a first wall 21, a second wall 22, a third wall 23 and a fourth wall 24 connected in sequence, and the first wall 21, the second wall 22, the third wall 23 and the fourth wall 24 are disposed around to form a housing cavity 201. Wherein, the first wall 21 and the third wall 23 are disposed at intervals along the first direction X, the second wall 22 and the fourth wall 24 are disposed at intervals along the second direction Y, an opening 202 communicating with the accommodating cavity 201 is disposed on one side of the first housing 20 in the third direction Z, and the first direction X is perpendicular to the second direction Y and the third direction Z.

In some embodiments, two opposite sides of the first housing 20 in the third direction Z are provided with openings 202 connecting the accommodating cavities 201, and two sides of the first housing 20 in the third direction Z are connected with second housings 30 for sealing the openings 202, so that the first housing 20 and the second housing 30 enclose to form accommodating spaces 230 for accommodating the cell modules 10. In other embodiments, the first housing 20 is provided with an opening 202 on only one side in the third direction Z.

In some embodiments, referring to fig. 13 and 14, the first housing 20 is further provided with a limiting member 25, and the limiting member 25 is located in the accommodating cavity 201. One side of the cell module 10 in the first direction X contacts the limiting member 25, the other side of the cell module 10 in the first direction X contacts the third wall 23, and the limiting member 25 plays a role in limiting the cell module 10, so that movement of the cell module 10 when the electrochemical device 100 is impacted is reduced. The limiting member 25 extends along the third direction Z, so that the limiting member can play a guiding role when the cell module 10 is mounted in the accommodating space 230 or removed from the accommodating space 230, and the cell module 10 can slide into the accommodating space 230 or slide out of the accommodating space 230 along the third direction Z, thereby facilitating the disassembly and assembly of the cell module 10.

Referring to fig. 13, the first case 20 and the second case 30 are detachably connected in a sealed manner, so that the sealing performance of the electrochemical device 100 is advantageously improved, and the possibility of dust and water entering the receiving space 230 is reduced.

In some embodiments, referring to fig. 13, the electrochemical device 100 further includes a first connector 60, the first connector 60 detachably connects the second case 30 to the first case 20, and a first seal 10a is disposed between the second case 30 and the first case 20. The first sealing member 10a increases the sealability of the combination of the first housing 20 and the second housing 30, thereby reducing the possibility of dust and water entering the receiving space 230.

In some embodiments, referring to fig. 13, the first connecting member 60 includes a first stop section 61 and a first connecting section 62 connected in sequence, the first stop section 61 is located on a side of the second housing 30 facing away from the first housing 20, the first connecting section 62 is penetrating through the second housing 30 and connected to the first housing 20, and a second sealing member 10b is disposed between the first stop section 61 and the second housing 30. The second sealing member 10b can improve the sealing property between the first connecting section 62 and the second housing 30, and reduce the possibility that dust or water enters the accommodating space 230 from a gap between the second housing 30 and the first connecting section 62. In addition, the first connection section 62 of the first connection member 60 is provided through the second housing 30 to be connected with the first housing 20, which is advantageous for installation, and can be advantageous for improving the bonding strength between the first housing 20 and the second housing 30.

In some embodiments, referring to fig. 13, the first connecting member 60 is provided as a bolt, the first stop section 61 is a head portion of the bolt, the first connecting section 62 is a threaded portion of the bolt, and the first housing 20 is provided with a threaded hole in threaded engagement with the first connecting section 62.

In some embodiments, referring to fig. 13, the first housing 20 is provided with a receiving cavity 201 and an opening 202 communicating with the receiving cavity 201, the second housing 30 covers the opening 202 to form a receiving space 230 around the first housing 20, the first sealing member 10a is disposed around the opening 202, and the second sealing member 10b is disposed around the first connecting section 62, so that the contact area between the first sealing member 10a and the first housing 20 and the second housing 30, and the contact area between the second sealing member 10b and the second housing 30 and the first connecting section 60 can be further increased, thereby further improving the sealing performance of the electrochemical device 100.

In some embodiments, the first connecting member 60 is configured as a bolt or a screw, and the first sealing member 10a and the second sealing member 10b may be made of rubber or silica gel, so that when the first connecting section 62 is connected to the first housing 20, the first stop section 61 applies pressure to the second sealing member 10b, the second sealing member 10b transmits pressure to the second housing 30, and the second housing 30 transmits pressure to the first sealing member 10a, so that the first sealing member 10a and the second sealing member 10b are pressed and deformed together, and thus sealing functions are performed between the first housing 20 and the second housing 30 and between the first connecting member 60 and the second housing 30.

In some embodiments, the first sealing member 10a and the second sealing member 10b are both rubber sealing rings, and the rubber sealing rings may be made of nitrile rubber or fluororubber, which is not limited herein.

Referring to fig. 13, the second housing 30 is provided with a relief hole 31, and the relief hole 31 communicates the accommodating space 230 with the outside, so that the cell module 10 can be electrically connected with an external member of the accommodating space 230 through the relief hole 31, so as to facilitate charging and discharging of the electrochemical device 100. The protection cover 40 is connected to the second housing 30, and is configured to be able to cover the relief hole 31 and the relief hole 31. When the hole 31 is put away in the cover, the hole 31 is sealed, so that the risk that dust and water enter the accommodating space 230 from the hole 31 is reduced, and when the cell module 10 is required to be electrically connected with a member outside the accommodating space 230, the protective cover 40 can be opened to avoid the hole 31.

In some embodiments, referring to fig. 13, the protection cover 40 includes a mounting portion 41, a connecting portion 42 and a cover portion 43, where the mounting portion 41 is located in the accommodating space 230 and connected with the second housing 30, the connecting portion 42 is connected with the mounting portion 41 and penetrates through the abdication hole 31, and the cover portion 43 is flexibly connected with the connecting portion 42 and located at least partially outside the accommodating space 230, and the cover portion 43 can move relative to the connecting portion 42 to cover the abdication hole 31 and avoid the abdication hole 31. The connection portion 42 between the protective cover 40 and the second housing 30 is disposed in the accommodating space 230, so as to reduce the occupied space of the protective cover 40 outside the accommodating space 230, reduce the occupied space of the electrochemical device 100, and increase the energy density of the electrochemical device 100. The flexible connection of the cover part 43 and the connecting part 42 is beneficial to the switching of the cover part 43 between the state of covering the avoidance hole and the state of opening the avoidance hole, so that the use of a user is facilitated.

In some embodiments, the material of the connecting portion 42 includes a soft material capable of being deformed, such as rubber, silica gel, or plastic, so that the connecting portion 42 and the cover portion 43 can be flexibly connected, and the cover portion 43 can move relative to the connecting portion 42. In other embodiments, the cover portion 43 is flexibly connected to the connecting portion 42 by a hinge structure.

In some embodiments, the material of the cover 43 includes a soft material that can be waterproof and deform, such as rubber, silicone, or plastic, and the material of the mounting portion 41 and the connecting portion 42 is the same as the material of the cover 43. The sealing cover part 43 is made of soft materials, so that the sealing cover part 43 can be extruded into the yielding hole 31, the sealing cover part 43 deforms to improve the sealing effect, the material of the connecting part 42 and the mounting part 41 is the same as that of the sealing cover part 43, the sealing cover part 43 is manufactured, and the sealing cover part 43 is formed integrally.

In some embodiments, referring to fig. 13, the electrochemical device 100 further includes a tab 13 disposed in the relief hole 31, the tab 13 being electrically connected to the cell module 10. The provision of the tabs 13 facilitates docking of the cell module 10 when electrically coupled to components external to the receiving space 230. At least part of the joint 13 is located between the mounting portion 41 and the second housing 30 so that the mounting portion 41 and the second housing 30 sandwich the fixed joint 13. The joint 13 is clamped and fixed by the mounting portion 41 and the second case 30, and a structure for fixing the joint 13 alone is omitted, which is advantageous in simplifying the structure of the electrochemical device 100 and in reducing the weight of the electrochemical device 100.

In some embodiments, referring to fig. 13 and 15, at least a portion of the joint 13 is located between the mounting portion 41 and the second housing 30, the mounting portion 41 is made of a flexible material such as rubber or silica gel, and the mounting portion 41 is locked to the second housing 30 by a screw, so that the sealing performance between the yielding hole 31 and the joint 13 can be enhanced by the mounting portion 41, and the sealing effect of the electrochemical device 100 is further improved.

Referring to fig. 13 and 15, the electrochemical device 100 further includes a hand-held assembly 50, and the hand-held assembly 50 is provided to facilitate the carrying and moving of the electrochemical device 100 by a user. The hand-held assembly 50 includes an operating member 51 and a fixing member 52, and a user can carry and move the electrochemical device 100 by holding the operating member 51. The operating member 51 is coupled to the fixing member 52, and the fixing member 52 is hermetically coupled to the first housing 20, thereby facilitating the improvement of sealability of the electrochemical device 100.

This application seals electrochemical device 100's first casing 20 and second casing 30, will step down the mouth and seal to portable subassembly 50 department seals, realizes the effect to battery all-round sealedly, thereby has greatly promoted electrochemical device 100's waterproof nature and dust resistance, and then has promoted electrochemical device 100's security and reliability.

In some embodiments, referring to fig. 15, the fixing element 52 includes a second stop segment 521 and a second connecting segment 522 connected in sequence, where the second stop segment 521 is located on a side of the operating element 51 facing away from the first housing 20, and the second connecting segment 522 penetrates the operating element 51 and is connected with the first housing 20 in a sealing manner.

In other embodiments, the operating member 51 and the securing member 52 are connected by integral molding.

In some embodiments, referring to fig. 15, the portable assembly 50 further includes a support ring 53 and a first mating member 54, the support ring 53 is disposed between the second stop section 521 and the first housing 20, the support ring 53 is disposed through the operating member 51, and the first mating member 54 is disposed in the accommodating space 230. The second connecting section 522 is disposed through the first housing 20 and connected to the first mating member 54 in the accommodating space 230, and a third sealing member 10c is disposed between the first mating member 54 and the first housing 20. When the first matching piece 54 is connected with the second connecting section 522, the second stopping section 521 has a tendency to move towards the first casing 20, and at this time, the supporting ring 53 contacts with the second stopping section 521, so that a gap exists between the second stopping section 521 and the first casing 20, and the operating piece 51 can be moved, so that the user can hold the operating piece 51 conveniently. The manner in which the second connecting section 522 is connected to the first mating member 54 is beneficial to improving the stability of the connection between the portable assembly 50 and the first housing 20, and the third sealing member 10c is beneficial to improving the tightness between the second connecting section 522 and the first housing 20, so as to reduce the risk of dust and water entering the accommodating space 230.

In some embodiments, the securing member 52 is provided as a bolt, the second stop section 521 is a head portion of the bolt, the second connecting section 522 is a threaded portion of the bolt, and the first mating member 54 is provided as a plain nut.

In other embodiments, referring to fig. 16, the portable assembly 50 further includes a support ring 53 and a second mating member 55, the support ring 53 is disposed between the second stop 521 and the first housing 20, the support ring 53 is disposed through the operating member 51, and the second mating member 55 is disposed in the accommodating space 230. The second connecting section 522 is disposed through the first housing 20 and connected to the first mating member 54 in the accommodating space 230, and a third sealing member 10c is disposed between the second mating member 55 and the first housing 20. When the second mating member 55 is connected with the second connecting section 522, the second stop section 521 has a tendency to move toward the first housing 20, and at this time, the supporting ring 53 contacts the second stop section 521, so that a gap is formed between the second stop section 521 and the first housing 20, and the operating member 51 can be moved, thereby facilitating the user to hold the operating member 51. The manner in which the second connecting section 522 is connected to the second mating member 55 is beneficial to improving the stability of the connection between the portable assembly 50 and the first housing 20, and the third sealing member 10c is beneficial to improving the tightness between the second connecting section 522 and the first housing 20, so as to reduce the risk of dust and water entering the accommodating space 230.

In some embodiments, the fixing member 52 is configured as a bolt, the second stop section 521 is a head portion of the bolt, the second connecting section 522 is a threaded portion of the bolt, the second mating member 55 is configured as a rivet nut, and the rivet nut deforms and presses the third sealing member 10c to enhance sealing when the second mating member 55 is connected to the second connecting section 522.

In some embodiments, referring to fig. 16 and 17, the operating member 51 is provided with two bar holes 511 penetrating along the first direction X, the two bar holes 511 are arranged at intervals along the third direction Z, and the two bar holes 511 extend along the third direction Z. The number of the fixing pieces 52 is two, the two fixing pieces 52 are arranged at intervals along the third direction Z, the second connecting section 522 of one fixing piece 52 penetrates through one of the two strip-shaped holes 511, and the second connecting section 522 of the other fixing piece 52 penetrates through the other one of the two strip-shaped holes 511. The provision of the bar-shaped hole 511 allows both ends of the operation piece 51 to move in directions approaching and separating from each other, allows the operation piece 51 to be deformed in the third direction Z when the user holds the operation piece 51, and allows the operation piece 51 to be reset when the force applied to the operation piece 51 is released, reducing the possibility of interference with other components when the electrochemical device 100 is mounted.

In some embodiments, referring to fig. 16 and 17, the strip-shaped holes 511 are configured as kidney-shaped holes that facilitate direct machining by a milling cutter. In other embodiments, two strip-shaped apertures 511 communicate.

In other embodiments, the penetrating direction of the two strip-shaped holes 511 is the first direction X, the two strip-shaped holes 511 extend along the second direction Y, and the two fixing pieces 52 are arranged at intervals along the second direction Y.

In some embodiments, the operation member 51 is made of flexible materials such as plastic, rubber nylon, and the like, and may be made of elastic metal.

Embodiments of the present application also provide an electrical device (not shown) that includes an apparatus main body and the electrochemical device 100 in any of the above embodiments, where the electrochemical device 100 is mounted on the apparatus main body.

Because the electric equipment adopts the technical scheme related to any embodiment of the electrochemical device 100, the waterproof performance and the dustproof performance of the electrochemical device 100 of the electric equipment are improved, the capacity of adapting the electric equipment to severe environments is enhanced, and the safety and the reliability of the electric equipment are further improved.

Moreover, the electric device has at least the beneficial effects brought by the technical scheme of any embodiment of the electrochemical device 100, and will not be described in detail herein.

The electric equipment comprises automobiles, refrigerators, air conditioners, cleaning robots, agricultural machines and the like, and are not listed here.

In addition, those of ordinary skill in the art will recognize that the above embodiments are presented for purposes of illustration only and are not intended to be limiting, and that suitable modifications and variations of the above embodiments are within the scope of the disclosure of the present application.

Claims (15)

1. An electrochemical device, comprising:

a battery cell module;

a first housing;

the second shell is detachably and hermetically connected with the first shell, an accommodating space is formed by enclosing the second shell and the first shell, the accommodating space is used for accommodating the battery cell module, and the second shell is provided with a yielding hole for electrically connecting the battery cell module with a member outside the accommodating space;

a protective cover connected with the second shell and configured to cover the relief hole and avoid the relief hole;

the portable assembly comprises a fixing piece, and the fixing piece is in sealing connection with the first shell.

2. The electrochemical device of claim 1, further comprising a first connector that detachably connects the second housing to the first housing with a first seal therebetween.

3. The electrochemical device of claim 2, wherein the first connection member comprises a first stop segment and a first connection segment connected in sequence, the first stop segment is located on one side of the second housing facing away from the first housing, a second sealing member is arranged between the first stop segment and the second housing, and the first connection segment penetrates through the second housing and is connected with the first housing.

4. The electrochemical device of claim 3, wherein the first housing is provided with a receiving cavity and an opening communicating with the receiving cavity, the second housing covers the opening to enclose the receiving space with the first housing, the first sealing member is disposed around the opening, and the second sealing member is disposed around the first connecting section.

5. The electrochemical device according to claim 1, wherein the protective cover comprises a mounting portion, a connecting portion and a cover portion, the mounting portion is located in the accommodating space and connected with the second housing, the connecting portion is connected with the mounting portion and penetrates through the abdication hole, the cover portion is flexibly connected with the connecting portion and located at least partially outside the accommodating space, and the cover portion can move relative to the connecting portion to cover the abdication hole and avoid the abdication hole.

6. The electrochemical device of claim 5, further comprising a tab disposed in the relief hole, the tab being electrically connected to the cell module, at least a portion of the tab being positioned between the mounting portion and the second housing such that the mounting portion and the second housing sandwich the tab.

7. The electrochemical device of claim 1, wherein the portable assembly further comprises an operating member, the operating member is connected with the fixing member, the fixing member comprises a second stop section and a second connecting section which are sequentially connected, the second stop section is located at one side of the operating member away from the first housing, and the second connecting section penetrates through the operating member and is in sealing connection with the first housing.

8. The electrochemical device of claim 7, wherein the hand-held assembly further comprises a support ring disposed between the second stop section and the first housing, the support ring passing through the operating member, and a first mating member disposed within the receiving space;

the second connecting section penetrates through the first shell and is connected with the first matching piece in the accommodating space, and a third sealing piece is arranged between the first matching piece and the first shell.

9. The electrochemical device according to claim 7, wherein the operation member is provided with two bar-shaped holes arranged at intervals, the bar-shaped holes extend in an arrangement direction of the two bar-shaped holes, the number of the fixing members is two, and the second connecting section of each fixing member is provided through one of the bar-shaped holes.

10. The electrochemical device of claim 1, wherein the cell module further comprises a cell and two supports, the supports are provided with a first connecting column and a second connecting column, and the first connecting column of one support is in snap connection with the second connecting column of the other support, so that the two supports enclose and fix the cell.

11. The electrochemical device according to claim 10, wherein one side of the support is in contact with the battery cell, a nickel sheet is arranged on the other side of the support, the nickel sheet is electrically connected with the battery cell, a positioning protrusion is further arranged on one side of the support, which faces away from the battery cell, and the positioning protrusion is in positioning fit with the nickel sheet;

the battery cell module further comprises a circuit board, wherein the nickel sheet is provided with at least two contact heads, and the contact heads are electrically connected with the circuit board.

12. The electrochemical device of claim 10, wherein the cell is electrically connected with a nickel plate, the cell module further comprising a thermally conductive structure in contact with the cell or the nickel plate, the thermally conductive structure further in contact with the first housing and/or the second housing.

13. The electrochemical device of claim 1, wherein the number of cell modules is at least two, and a heating film is disposed between at least two adjacent cell modules.

14. The electrochemical device according to claim 1, wherein the first case is provided with a housing chamber and an opening communicating with the housing chamber, the first case is further provided with a stopper located in the housing chamber, the stopper extending in a direction along the opening toward the housing chamber;

one side of the battery cell module is contacted with the limiting piece, and the other side of the battery cell module is contacted with the cavity wall of the first shell.

15. An electric device comprising an apparatus main body and the electrochemical device according to any one of claims 1 to 14, the electrochemical device being mounted to the apparatus main body.

Images