CN108666451A - Power battery module - Google Patents
Power battery module Download PDFInfo
- Publication number
- CN108666451A CN108666451A CN201710203133.2A CN201710203133A CN108666451A CN 108666451 A CN108666451 A CN 108666451A CN 201710203133 A CN201710203133 A CN 201710203133A CN 108666451 A CN108666451 A CN 108666451A
- Authority
- CN
- China
- Prior art keywords
- battery module
- power battery
- accommodating cavity
- electric connection
- connection board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Abstract
The present invention provides a kind of power battery module.The power battery module has at least one battery cell and at least one electric connection board, the pole floating connection of electric connection board and battery cell, for the serial or parallel connection between different battery cells.The pole floating connection of cell connector and battery cell, not only simplifies the structure of power battery module in the power battery module, and is easily installed and dismantles, consequently facilitating the secondary use of power battery module；Meanwhile also improving the service life of power battery module.
Description
Technical field
The present invention relates to batteries of electric automobile field in groups, more particularly to a kind of power battery modules.
Background technology
For existing battery group technology, battery series-parallel connection in groups when, mainly by various battery electrode columns in being electrically connected
The mode of contact pin welding or screw fastening carries out battery connection.But when electric vehicle is under various severe operating modes, electricity
Pond module usually will appear the situation of structural failure and electrical connection failure after being used for a long time, to influence the use of power battery
Service life and safety.In addition, when existing battery electrode column is welded with electric connecting sheet so that work can not be dismantled or be dismantled to power battery
Skill is complex, to cause power battery relatively difficult in secondary use.
To which power battery module in the prior art is with service life is relatively low, safety is relatively low and is not easy to secondary
The defect used.
Invention content
The technical problem to be solved by the present invention is in order to overcome power battery module in the prior art have service life
It is relatively low, be not easy to the secondary defect used, a kind of power battery module is provided.
The present invention is to solve above-mentioned technical problem by following technical proposals：
A kind of power battery module there is at least one battery cell and at least one electric connection board, feature to be, institute
The pole floating connection of electric connection board and the battery cell is stated, for the serial or parallel connection between different battery cells.
In the technical scheme, the electric connection board and the battery cell are floating connection, even if electric vehicle is in
It, also being capable of automatic adjusument self structure as needed so that the electric connection board can for a long time may be used under severe applying working condition
It is electrically connected to the pole of the battery cell by ground, improves the service life of the power battery module；In addition, also allowing for described dynamic
The installation and removal of power battery modules, so that the power battery module can carry out secondary use more conveniently.
Wherein, floating connection can be understood as between the electric connection board and the battery cell not by fixed
Connection type realizes electrical connection, but passes through the adjustable company of the distance between the pole of the electric connection board and the battery cell
Mode is connect to realize electrical connection, for example, being realized by the flexible of elastic element.
Preferably, the electric connection board has the first accommodating cavity close to one end of the pole of the battery cell, described the
It is embedded with conductive resilient element in one accommodating cavity.
In the technical scheme, the electric connection board is electrically connected by the conductive resilient element and battery cell pole
Connect, be convenient for the power battery module installation and removal so that the power battery module can more conveniently into
The secondary use of row；In addition, being electrically connected the knot for also simplifying the power battery module by conductive elastic component and pole
Structure.
Preferably, there is first accommodating cavity bottom surface and an internal face, the conductive resilient element to have a compressed part
With a contact site, the compressed part is resisted against the bottom surface of first accommodating cavity, and the contact site is exposed to the electric connection board
Outer surface, and be resisted against the pole surface of the battery cell.
Preferably, recess portion is additionally provided between the bottom surface and internal face of first accommodating cavity, and the recess portion is along the electricity
The radial of connecting plate is recessed to the outside wall surface direction of the electric connection board.
In the technical scheme, it is formed with the structure of wedge like in first accommodating cavity, more can reliably block
State conductive resilient element in residence.The structure of first accommodating cavity is relatively simple, that is to say, that just can by relatively simple structure
Enough so that the conductive resilient element is more reliably embedded at first accommodating cavity, cost is relatively low.In fact, described first holds
It sets chamber and could be provided as dovetail groove.
Preferably, the conductive resilient element is interference fitted with first accommodating cavity, and it is extruded and is fixed on described be electrically connected
Between fishplate bar and the pole of the battery cell.
Preferably, the power battery module further includes a mounting bracket, the mounting bracket pressure is set to the battery list
Body, the mounting bracket have the upper surface that is oppositely arranged and a lower surface, and the lower surface of the mounting bracket is equipped with the
One mounting groove, the electric connection board correspondence are arranged in first mounting groove.
In the technical scheme, multiple electric connection boards are carried out by the mounting bracket and multiple battery cells
Electrical connection is equivalent to and is all fixed to the mutually independent electric connection board in multiple structures in the mounting bracket, can either
Simplify the structure of the power battery module, additionally it is possible to improve the reliability of the power battery module.
Preferably, the upper surface of the mounting bracket is equipped with the second mounting groove, second mounting groove and described first
Accommodating cavity is correspondingly arranged, and the center line of second mounting groove is overlapped with the center line of corresponding first accommodating cavity, institute
State and be embedded with a clamping element in the second mounting groove, clamping element pressure set on the top of the electric connection board, and with it is described
Electric connection board floating connection.
Preferably, the clamping element is made of dielectric plastic material；
The material of the clamping element is nylon.
In the technical scheme, the presence of the clamping element makes the power battery module even at more severe
Operating mode under it is also possible that the conductive resilient element is reliably electrically connected with the battery cell, be reduced or avoided by
The power battery module structure failure or electrical connection failure, improve the power battery module caused by the reasons such as shaking
Service life and safety.
Preferably, the clamping element has an interconnecting piece and a compressed part, the interconnecting piece and second mounting groove
It is adapted, the compressed part is connected to the bottom surface of the interconnecting piece along the axial direction of the interconnecting piece, has in the compressed part
There are one second accommodating cavity, second accommodating cavity to extend to the bottom surface of the interconnecting piece, a bullet is equipped in second accommodating cavity
Property element, the head end of the elastic element is set to the bottom surface of the interconnecting piece, tail end pressure set on the top of the electric connection board.
In the technical scheme, the elastic element can be according to actual needs to the bottom surface of the interconnecting piece and the electricity
Relative altitude between connecting plate carries out flexible adjustment, realizes that the floating between the electric connection board and the clamping element connects
It connects, so that the conductive elastic component can be reliably embedded in first accommodating cavity, and enables to described lead
Electric elastic element can reliably be electrically connected to the pole of the battery cell.
Preferably, also having a limiting section in second accommodating cavity, the limiting section is set to the bottom surface of the interconnecting piece
And extend along the axial direction of the interconnecting piece, the center line of the limiting section is overlapped with the center line of second mounting groove.
Preferably, the limiting section is made of fire-retardant, insulation elastic-plastic material；
The material of the limiting section is nylon.
In the technical scheme, on the one hand, the limiting section can limit the elastic element, limit the bullet
Property element being moved along the axial direction perpendicular to the interconnecting piece；On the other hand, the limiting section uses elastic-plastic material system
At so that the relative altitude between the limiting section bottom surface that can be directly to the interconnecting piece and the electric connection board carries out bullet
Property adjust, it is simple in structure, even and if finally so that the conductive resilient element still can reliably be electrically connected under severe operating mode
It is connected to the pole of the battery cell.
Preferably, the top of the electric connection board has a protrusion, the center line of the protrusion and the limiting section
Center line, second mounting groove center line overlap；
The both ends of the elastic element are socketed in respectively on the limiting section and the protrusion.
In the technical scheme, on the one hand, the limiting section and the protrusion match can be reliably to the bullet
Property element is positioned；On the other hand, the elastic element by the cooperation of the limiting section and the protrusion to the company
Relative altitude between the bottom surface of socket part and the electric connection board carries out flexible adjustment, since the center of the protrusion is located at institute
On the center line for stating the first accommodating cavity so that the pressing force of the compressed part can intensively be transmitted to the conductive elastic component
On, and the conductive resilient element is finally enable more reliably to be electrically connected to the pole of the battery cell.
Preferably, the circumferential direction of compressed part described in the outer surface upper edge of the compressed part is equipped with a positioning region, and it is described
Plane where positioning region is parallel with the cross section of the compressed part；
There is a positioning groove, the locating slot to be adapted with the positioning region in the mounting bracket.
In the technical scheme, the positioning region and the cooperation of the locating slot reliably limit the clamping element edge
It is parallel to the movement of the axial direction of the interconnecting piece, structure is relatively simple.The positioning region could be provided as multiple intervals point
The sub- positioning region of cloth can also be directly disposed as a cricoid positioning region.
Preferably, the compressed part is integral structure with the interconnecting piece, the limiting section.
Preferably, the compressed part is integral structure with the interconnecting piece, the limiting section, the positioning region, it is described
Protrusion is integral structure with the electric connection board.
In the technical scheme, the compressed part, the interconnecting piece, the limiting section and the positioning region are set as whole
Structure, meanwhile, the protrusion is also configured as overall structure with the electric connection board, eliminates one of the various connection types,
It mounts and dismounts fairly simple；Importantly, avoid due to it is various connection errors and caused by the clamping element can
By the influence of property, to finally further improve the reliability being electrically connected between the conductive elastic component and pole.
Preferably, the elastic element is spring.
Preferably, the mounting bracket is equipped with third accommodating cavity, the peace is extended at the top of the third accommodating cavity
The lower surface of holder is filled, the third accommodating cavity is correspondingly arranged with first accommodating cavity, the center line of the third accommodating cavity
It is overlapped with the center line of corresponding first accommodating cavity, and the third accommodating cavity is connected with first mounting groove；
An elastic compression element is equipped in the third accommodating cavity, the elastic compression element pressure is set to the electric connection board
Top, and with the electric connection board floating connection.
Preferably, being equipped with a limiting section in the third accommodating cavity, the limiting section is from the bottom of the third accommodating cavity
Extend along the axial direction of the third accommodating cavity, and the center line of the center line of the limiting section and the third accommodating cavity
It overlaps；
The top of the electric connection board has a protrusion, the center line of the center line of the protrusion and the limiting section
It overlaps；
The both ends of the elastic compression element are socketed in respectively on the limiting section and the protrusion.
In the technical scheme, on the one hand, the limiting section and the protrusion match can be reliably to the bullet
Property clamping element is positioned；On the other hand, the cooperation that the elastic compression element passes through the limiting section and the protrusion
Relative altitude between the bottom surface and the electric connection board of the third accommodating cavity carries out flexible adjustment so that the conduction bullet
Property part can reliably be electrically connected to the pole of the battery cell.
Preferably, the limiting section is integral structure with the third accommodating cavity, the protrusion is electrically connected with described
Plate is integral structure.
In the technical scheme, it is equivalent to the limiting section and is integral structure with the mounting bracket, described in utilization
Floating connection of the conductive resilient element reliably between the battery cell is realized on the basis of mounting bracket self structure,
Structure is simpler, and reliability is also higher.
Preferably, the elastic compression element is spring.
Preferably, the power battery module further includes a signal acquiring board being mounted in the mounting bracket, it is each
The electric connection board has an extension, and hole compatible with the extension is correspondingly provided in the mounting bracket, described to stretch
Go out portion across the hole and expose the upper surface in mounting bracket, the signal acquiring board is covered on the extension, institute
It states extension and is equipped with threaded hole, the extending area is between the mounting bracket and the signal acquiring board, the signal
Collection plate is connected to the mounting bracket by multiple fasteners and multiple threaded holes.
In the technical scheme, the signal acquiring board is realized and the conductive elastic component, institute by the extension
The electrical connection of battery cell is stated, it is simple in structure, reliable so that the signal acquiring board can reliably carry out signal acquisition.Institute
The protection signal acquiring board can be played the role of by stating cover board, in addition, the signal acquiring board has acquisition battery modules
Temperature, voltage and battery balanced function.
Preferably, the power battery module further includes the cover board that lid is located on the signal acquiring board.
Preferably, the both ends of the signal acquiring board, which are equipped with low-voltage signal, acquires terminal, the both ends of the cover board, which are equipped with, to be supplied
The low-voltage signal acquires the perforative opening of terminal.
Preferably, the mounting bracket upper surface also has the third mounting groove being embedded in for signal acquiring board and cover board, institute
It is recessed to battery cell direction to state third mounting groove；
The outer surface of the two side of the cover board has flange, and the cover board is arranged in the third by the flange pacifies
In tankage.
In the technical scheme, the signal acquiring board and the cover board are set in the third mounting groove, without additional
Ground increases the height of the power battery module, and space availability ratio is higher.
Preferably, the both ends of the mounting bracket are equipped with High voltage output portion, the High voltage output portion is for installing high-voltage connecting
Insertion terminal.
Preferably, the conductive resilient element is power spring.
On the basis of common knowledge of the art, above-mentioned each optimum condition can be combined arbitrarily to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that：
The pole floating connection of power battery module cell connector and battery cell in the present invention, not only simplifies dynamic
The structure of power battery modules, and be easily installed and dismantle, consequently facilitating the secondary use of power battery module；Meanwhile it also carrying
The high service life of power battery module.
Description of the drawings
Fig. 1 is the overall structure diagram of the power battery module of the embodiment of the present invention 1.
Fig. 2 is the decomposition texture schematic diagram of the power battery module of the embodiment of the present invention 1.
Fig. 3 is the partial internal structure schematic diagram of the power battery module of the embodiment of the present invention 1.
Fig. 4 be the embodiment of the present invention 1 power battery module in electric connection board positive structure schematic.
Fig. 5 be the embodiment of the present invention 1 power battery module in electric connection board reverse structure schematic.
Fig. 6 be the embodiment of the present invention 1 power battery module in electric connection board and mounting bracket structural schematic diagram.
Fig. 7 be the embodiment of the present invention 1 power battery module in mounting bracket structural schematic diagram.
Fig. 8 be the embodiment of the present invention 1 power battery module in clamping element structural schematic diagram.
Fig. 9 be the embodiment of the present invention 1 power battery module in clamping element internal structure schematic diagram.
Figure 10 is the partial internal structure schematic diagram of the power battery module of the embodiment of the present invention 2.
Reference sign：
10：Cover board
101：Flange
102：Groove
20：Signal acquiring board
30：Mounting bracket
301：First mounting groove
302：Second mounting groove
303：Locating slot
304：Third mounting groove
305：High voltage output portion
306：Third accommodating cavity
307：Elastic compression element
308：Second limiting section
40：Electric connection board
401：First accommodating cavity
402：Bottom surface
403：Internal face
404：Protrusion
405：Extension
50：Battery cell
60：Conductive resilient element
70：Bottom plate
80：Clamping element
801：Interconnecting piece
802：Compressed part
803：Second accommodating cavity
804：Elastic element
805：First limiting section
806：Positioning region
Specific implementation mode
2 embodiments are named, and completely illustrate the present invention in conjunction with attached drawing to become apparent from.
Embodiment 1
As depicted in figs. 1 and 2, power battery module has cover board 10, signal acquiring board 20, mounting bracket 30, Duo Ge electricity
Connecting plate 40, multiple battery cells 50, conductive resilient element 60 and bottom plate 70.Wherein, multiple battery cells 50 correspond card and set
In in multiple limiting slots on bottom plate 70, mounting bracket 30 and bottom plate 70 are oppositely arranged, and mounting bracket 30 and bottom plate 70 pass through
Multiple screw connections, the pressure of mounting bracket 30 are set to multiple battery cells 50；The lid of cover board 10 is located on signal acquiring board 20；Electrical connection
The pole floating connection of plate 40 and multiple battery cells 50.
Electric connection board 40 is floating connection with battery cell 50, even if electric vehicle is under severe applying working condition
It being capable of automatic adjusument self structure as needed so that electric connection board 40 can be electrically connected to battery cell 50 stably in a long term
Pole, improve the service life of the power battery module；In addition, the installation and removal of the power battery module are also allowed for,
So that the power battery module can carry out secondary use more conveniently.
In the present embodiment, as shown in Figure 3 and Figure 4, each electric connection board 40 close to battery cell 50 pole one
End has the first accommodating cavity 401, and conductive resilient element 60 is embedded in the first accommodating cavity 401, and conductive resilient element 60 and first is accommodating
Chamber 401 is interference fitted.Wherein, there is the first accommodating cavity 401 bottom surface 402 and internal face 403, conductive resilient element 60 to have compressed part
(not shown) and contact site (not shown), the compressed part are resisted against the bottom surface 402 of first accommodating cavity 401, the contact
Portion is exposed to the outer surface of electric connection board 40, and is resisted against the pole surface of battery cell 50.In addition, in the present embodiment,
Recess portion (not shown) is additionally provided between the bottom surface 402 and internal face 403 of first accommodating cavity 401, and the recess portion is along electric connection board
40 radial direction is recessed to the outside wall surface direction of electric connection board 40.
In other alternative embodiments, for multiple electric connection boards 40, can selectively only wherein one
First accommodating cavity 401 is set on a electric connection board 40 or on the electric connection board of other quantity 40, and is not limited solely to this implementation
Set-up mode in mode.
In the present embodiment, it is formed with the structure of wedge like in the first accommodating cavity 401, more can reliably block
Conductive resilient element 60, structure is relatively simple, and cost is relatively low.In fact, in the present embodiment, the first accommodating cavity 401 is set as
One dovetail groove.In other embodiments, the first accommodating cavity 401 can also be set as other structures according to actual needs, only
The pole that conductive resilient element 60 can be reliably with battery cell 50 is enabled to be electrically connected.In addition, the implementation
In mode, conductive resilient element 60 can be power spring, and in order to realize between electric connection board 40 and the pole of battery cell 50
Floating connection, the depth of the first accommodating cavity 401 is the 60%~80% of power spring height.
In the present embodiment, as shown in Fig. 2, Fig. 6 and Fig. 7, mounting bracket 30 has the upper surface being oppositely arranged under
The lower surface on surface, mounting bracket 30 is equipped with multiple first mounting grooves 301.Wherein, multiple electric connection boards 40 correspond card
In multiple first mounting grooves 301；The upper surface of mounting bracket 30 is equipped with multiple second mounting grooves 302, multiple second installations
Slot 302 is arranged in a one-to-one correspondence with multiple first accommodating cavities 401, and the center line of the second mounting groove 302 is accommodating with corresponding first
The center line of chamber 401 overlaps, and clamping element 80 is embedded in every 1 second mounting groove 302, and the pressure of clamping element 80 is set to electrical connection
The top of plate 40 and with 40 floating connection of electric connection board.In addition, clamping element 80 is made of dielectric plastic material, in this implementation
In mode, the material of clamping element 80 is nylon.
In the present embodiment, multiple electric connection boards 40 are mounted on by mounting bracket 30 on the pole of battery cell 50,
It is equivalent to and is all fixed to mutually independent electric connection board 40 in multiple structures in mounting bracket 30, the power can either be simplified
The structure of battery modules, additionally it is possible to improve the reliability of the power battery module.The presence of clamping element 80 makes described dynamic
Power battery modules even under more severe operating mode it is also possible that conductive resilient element 60 reliably with battery cell 50 into
Row electrical connection has been reduced or avoided the power battery module structure failure or electrical connection caused by due to shaking etc. and has lost
Effect, improves service life and the safety of the power battery module.
As shown in Fig. 2, Fig. 8 and Fig. 9, clamping element 80 has interconnecting piece 801 and compressed part 802, interconnecting piece 801 and second
Mounting groove 302 is adapted, and compressed part 802 is connected to the bottom surface of interconnecting piece 801 along the axial direction of interconnecting piece 801.Wherein, it compresses
There is the second accommodating cavity 803, the second accommodating cavity 803 to extend to the bottom surface of interconnecting piece 802, be set in the second accommodating cavity 803 in portion 802
Have elastic component 804, the head end of elastic element 804 is set to the bottom surface of interconnecting piece 801, tail end pressure set on the top of electric connection board 40
Portion.In the present embodiment, elastic element 804 is using spring.
Wherein, the phase that elastic element 804 can according to actual needs between the bottom surface of interconnecting piece 801 and electric connection board 40
Flexible adjustment is carried out to height, the floating connection between electric connection board 40 and clamping element 80 is realized, so that electrically conductive elastic
Element 60 can be reliably embedded in the first accommodating cavity 401, and enable to conductive elastic component 60 that can reliably be electrically connected
It is connected to the pole of battery cell 50.
As shown in Fig. 3, Fig. 5 and Fig. 9, also there is one first limiting section 805, the first limiting section 805 in the second accommodating cavity 803
Extend set on the bottom surface of interconnecting piece 801 and along the axial direction of interconnecting piece 801；The top of electric connection board 40 has protrusion 404,
The center line of protrusion 404 is overlapped with the center line of the center line of the first limiting section 805, the second mounting groove 302；Elastic element
804 head end is sheathed on the first limiting section 805, tail end is sheathed on protrusion 404, and the terminal surface of the first limiting section 805 with it is convex
Go out between the terminal surface in portion 404 with a gap.In addition, elastic-plastic material system of first limiting section 805 using fire-retardant insulation
At in the present embodiment, the material of the first limiting section 805 is nylon.
In the present embodiment, on the one hand, the first limiting section 805 and protrusion 404 match can be reliably to elasticity
Element 804 is positioned；On the other hand, elastic element 804 by the cooperation of the first limiting section 805 and protrusion 404 to connection
Relative altitude between the bottom surface and electric connection board 40 in portion 801 carries out flexible adjustment, since the center of protrusion 404 is located at first
On the center line of accommodating cavity 401 so that the pressing force of compressed part 802 can be intensively transmitted on conductive elastic component 60, and
The final pole for enabling conductive resilient element 60 to be more reliably electrically connected to battery cell 50.
In addition, as shown in Fig. 3, Fig. 8 and Fig. 9, the circumferential direction of the outer surface upper edge compressed part 802 of compressed part 802 is equipped with
Positioning region 806, and the plane where positioning region 806 is parallel with the cross section of compressed part 802；There is locating slot in mounting bracket 30
303, locating slot 303 is adapted with positioning region 806.Positioning region 806 and the cooperation of locating slot 303 reliably limit clamping element
80 moving along the axial direction for being parallel to interconnecting piece 801, structure is relatively simple.
In the present embodiment, positioning region 806 is arranged around the circumferential cyclic annular positioning region of compressed part 802.In other realities
It applies in mode, positioning region 806 may be arranged as multiple sub- positioning regions being spaced apart.
In the present embodiment, compressed part 802 is integral knot with interconnecting piece 801, the first limiting section 805, positioning region 806
Structure, protrusion 404 are integral structure with electric connection board 40.In this way, eliminating one of the various connection types, mount and dismount
It is fairly simple；Importantly, avoid due to various connection errors and caused by influence to the reliability of clamping element 80, from
And finally further improve the reliability being electrically connected between conductive elastic component 60 and pole.
In other embodiments, conductive resilient element 60 may be arranged as other structures, and be not limited solely to lead
Electrical spring；Similarly, elastic element 804 may be arranged as other structures, and be not limited solely to spring.
As shown in Fig. 2 and Fig. 4-6, the middle section of mounting bracket 30 is equipped with the third peace for concaving towards 50 direction of battery cell
Tankage 304, the length direction of third mounting groove 304 are parallel to the length direction of the power battery module.Electric connection board 40 has
Have an extension 405, be located in mounting bracket 30 304 both sides of third mounting groove protruding portion be correspondingly provided with it is suitable with 405 phase of extension
The hole (not shown) matched, extension 405 pass through the hole and the upper surface of the third mounting groove 304 positioned at mounting bracket 30, stretch
Going out portion 405 and is equipped with threaded hole, the signal acquiring board in Fig. 2 is mounted in third mounting groove 304 and covers extension 405, and
It is connected to mounting bracket 30 by multiple fasteners and multiple threaded holes.
Such as Fig. 2 and shown, cover board 10 is mounted on the signal acquiring board 20 in third mounting groove 304, and the two of cover board 10
The outer surface of side wall has flange 101, and the corresponding position of third mounting groove 304 is equipped with is caught in fixed groove for flange 101.
In the present embodiment, signal acquiring board 20 is realized and battery list by contacting the extension 405 of electric connection board 40
The electrical connection of body 50, it is simple in structure, reliable to obtain temperature, voltage and the battery balanced performance of battery modules so that letter
Number collection plate 20 can reliably carry out signal acquisition.Cover board 10 can play the role of protection signal collection plate 20, in addition, lid
Plate 10 is set in third mounting groove 304, does not increase the height of the power battery module extraly, space availability ratio is higher.
In the present embodiment, the both ends of signal acquiring board 20 are equipped with low-voltage signal and acquire terminal (not shown), for electricity
The output of pond module gathered data and the input for controlling signal, believe as shown in Fig. 2, the both ends of cover board 10 are equipped with the low pressure
Number compatible groove of acquisition terminal 102.As shown in figs. 1,2 and 6, the both ends of mounting bracket 30 are equipped with High voltage output portion
305, High voltage output portion 305 is for being connected to high pressure plug terminal.
Embodiment 2
The basic phase of structure of the structure of power battery module in the present embodiment and the power battery module in embodiment 1
Together, difference lies in：The clamping element in embodiment 1 is eliminated in the present embodiment, and the structure of mounting bracket 30 is carried out suitably
Improvement.
As shown in Figure 10, mounting bracket 30 is equipped with third accommodating cavity 306, and the top of third accommodating cavity 306 extends to peace
Fill the lower surface of holder 30, third accommodating cavity 306 is correspondingly arranged with the first accommodating cavity 401, the center line of third accommodating cavity 306 and
The center line of corresponding first accommodating cavity 401 overlaps, and third accommodating cavity 306 and the first installation for electric connection board 40 to be arranged
Slot is connected；Elastic compression element 307 is equipped in third accommodating cavity 306, the pressure of elastic compression element 307 is set on electric connection board 40
Top, and with 40 floating connection of electric connection board.
In addition, in the present embodiment, the second limiting section 308 is equipped in third accommodating cavity 306, the second limiting section 308 is certainly
The bottom of third accommodating cavity 306 along third accommodating cavity 306 axial direction extend, and the center line of the second limiting section 308 with
The center line of third accommodating cavity 306 overlaps；The top of electric connection board 40 has protrusion 404, the center line of protrusion 404 and the
The center line of two limiting sections 308 overlaps；The both ends of elastic compression element 307 are socketed in the second limiting section 308 and protrusion respectively
On 404.In the present embodiment, elastic compression element 307 is spring.
On the one hand, the second limiting section 308 and protrusion 404, which match, reliably to carry out elastic compression element 307
Positioning；On the other hand, elastic compression element 307 by the cooperation of the second limiting section 308 and protrusion 404 to third accommodating cavity
Relative altitude between 306 bottom surface and electric connection board 40 carries out flexible adjustment so that conductive resilient element 60 can be reliably electric
It is connected to the pole of battery cell 50.
In the present embodiment, the second limiting section 308 is integral structure, protrusion 404 and electricity with third accommodating cavity 306
Connecting plate 40 is integral structure, is equivalent to the second limiting section 308 and is integral structure with mounting bracket 30, is utilizing installation branch
The reliably floating connection between battery cell 50 of conductive resilient element 60 is realized on the basis of 30 self structure of frame, structure is more
Simply, reliability is also higher.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (26)
1. a kind of power battery module has at least one battery cell and at least one electric connection board, which is characterized in that described
The pole floating connection of electric connection board and the battery cell, for the serial or parallel connection between different battery cells.
2. power battery module as described in claim 1, which is characterized in that the electric connection board is close to the battery cell
One end of pole has the first accommodating cavity, and conductive resilient element is embedded in first accommodating cavity.
3. power battery module as claimed in claim 2, which is characterized in that first accommodating cavity has in a bottom surface and one
There is a compressed part and a contact site, the compressed part to be resisted against the bottom of first accommodating cavity for wall surface, the conductive resilient element
Face, the contact site are exposed to the outer surface of the electric connection board, and are resisted against the pole surface of the battery cell.
4. power battery module as claimed in claim 3, which is characterized in that the bottom surface of first accommodating cavity and internal face it
Between be additionally provided with recess portion, and the recess portion is along the radial recessed to the outside wall surface direction of the electric connection board of the electric connection board.
5. power battery module as claimed in claim 2, which is characterized in that the conductive resilient element and first accommodating cavity
Interference fit, and be extruded and be fixed between the electric connection board and the pole of the battery cell.
6. power battery module as claimed in claim 2, which is characterized in that the power battery module further includes an installation branch
Frame, the mounting bracket pressure are set to the battery cell, and the mounting bracket has the upper surface being oppositely arranged and a following table
The lower surface in face, the mounting bracket is equipped with the first mounting groove, and the electric connection board correspondence is arranged in first mounting groove
It is interior.
7. power battery module as claimed in claim 6, which is characterized in that the upper surface of the mounting bracket is equipped with second
Mounting groove, second mounting groove are correspondingly arranged with first accommodating cavity, and the center line of second mounting groove with it is corresponding
The center line of first accommodating cavity overlap, be embedded with a clamping element, the clamping element pressure in second mounting groove
Set on the top of the electric connection board, and with the electric connection board floating connection.
8. power battery module as claimed in claim 7, which is characterized in that the clamping element uses dielectric plastic material system
At；
The material of the clamping element is nylon.
9. power battery module as claimed in claim 7, which is characterized in that the clamping element has an interconnecting piece and a pressure
Tight portion, the interconnecting piece are adapted with second mounting groove, and the compressed part is connected to along the axial direction of the interconnecting piece
The bottom surface of the interconnecting piece, the compressed part is interior, and there is one second accommodating cavity, second accommodating cavity to extend to the interconnecting piece
Bottom surface, be equipped with an elastic element in second accommodating cavity, the head end of the elastic element be set to the bottom surface of the interconnecting piece,
Tail end pressure is set on the top of the electric connection board.
10. power battery module as claimed in claim 9, which is characterized in that also have a limit in second accommodating cavity
Portion, the limiting section is set to the bottom surface of the interconnecting piece and extends along the axial direction of the interconnecting piece, in the limiting section
Heart line is overlapped with the center line of second mounting groove.
11. power battery module as claimed in claim 10, which is characterized in that the limiting section is using bullet that is fire-retardant, insulating
Plastic material is made；
The material of the limiting section is nylon.
12. power battery module as claimed in claim 10, which is characterized in that
The top of the electric connection board has a protrusion, center line, the institute of the center line of the protrusion and the limiting section
The center line for stating the second mounting groove overlaps；
The both ends of the elastic element are socketed in respectively on the limiting section and the protrusion.
13. power battery module as claimed in claim 12, which is characterized in that pressed described in the outer surface upper edge of the compressed part
The circumferential direction in tight portion is equipped with a positioning region, and the plane where the positioning region is parallel with the cross section of the compressed part；
There is a positioning groove, the locating slot to be adapted with the positioning region in the mounting bracket.
14. power battery module as claimed in claim 10, which is characterized in that the compressed part and the interconnecting piece, described
Limiting section is integral structure.
15. power battery module as claimed in claim 13, which is characterized in that the compressed part and the interconnecting piece, described
Limiting section, the positioning region are integral structure, and the protrusion is integral structure with the electric connection board.
16. power battery module as claimed in claim 9, which is characterized in that the elastic element is spring.
17. power battery module as claimed in claim 6, which is characterized in that the mounting bracket is housed equipped with third
Chamber, the lower surface of the mounting bracket is extended at the top of the third accommodating cavity, and the third accommodating cavity holds with described first
It sets chamber to be correspondingly arranged, the center line of the third accommodating cavity is overlapped with the center line of corresponding first accommodating cavity, and described
Third accommodating cavity is connected with first mounting groove；
An elastic compression element is equipped in the third accommodating cavity, the elastic compression element pressure is set on the top of the electric connection board
Portion, and with the electric connection board floating connection.
18. power battery module as claimed in claim 17, which is characterized in that be equipped with a limit in the third accommodating cavity
Portion, the limiting section extends from the bottom of the third accommodating cavity along the axial direction of the third accommodating cavity, and the limit
The center line in position portion is overlapped with the center line of the third accommodating cavity；
The top of the electric connection board has a protrusion, the center line weight of the center line of the protrusion and the limiting section
It closes；
The both ends of the elastic compression element are socketed in respectively on the limiting section and the protrusion.
19. power battery module as claimed in claim 18, which is characterized in that the limiting section is with the third accommodating cavity
One overall structure, the protrusion are integral structure with the electric connection board.
20. power battery module as claimed in claim 17, which is characterized in that the elastic compression element is spring.
21. power battery module as claimed in claim 6, which is characterized in that the power battery module further includes an installation
Signal acquiring board in the mounting bracket, each electric connection board have an extension, are corresponded in the mounting bracket
Equipped with hole compatible with the extension, the extension passes through the hole and exposes the upper surface in mounting bracket, institute
It states signal acquiring board to be covered on the extension, the extension is equipped with threaded hole, and the extending area is in the installation
Between holder and the signal acquiring board, the signal acquiring board is connected to institute by multiple fasteners and multiple threaded holes
State mounting bracket.
22. power battery module as claimed in claim 21, which is characterized in that the power battery module further includes that lid is located at
Cover board on the signal acquiring board.
23. power battery module as claimed in claim 22, which is characterized in that the both ends of the signal acquiring board are equipped with low pressure
Signal acquisition terminal, the both ends of the cover board are equipped with acquires the perforative opening of terminal for the low-voltage signal.
24. power battery module as claimed in claim 22, which is characterized in that the mounting bracket upper surface also has for letter
The third mounting groove of number collection plate and cover board insertion, the third mounting groove are recessed to battery cell direction；
There is flange, the cover board to be arranged in the third mounting groove by the flange for the outer surface of the two side of the cover board
It is interior.
25. power battery module as claimed in claim 6, which is characterized in that it is defeated that the both ends of the mounting bracket are equipped with high pressure
Go out portion, the High voltage output portion is for installing high pressure plug terminal.
26. the power battery module as described in claim 2-25 any one, which is characterized in that the conductive resilient element is to lead
Electrical spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203133.2A CN108666451B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
| CN202110495425.4A CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203133.2A CN108666451B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110495425.4A Division CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108666451A true CN108666451A (en) | 2018-10-16 |
| CN108666451B CN108666451B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710203133.2A Active CN108666451B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
| CN202110495425.4A Active CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110495425.4A Active CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
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| Country | Link |
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| CN (2) | CN108666451B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534686A (en) * | 2019-08-29 | 2019-12-03 | 恒大新能源科技集团有限公司 | Busbar ruggedized construction, power supply mould group connection structure and battery pack |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084764A (en) * | 2022-08-01 | 2022-09-20 | 深圳市泽塔电源系统有限公司 | Battery support structure and battery pack thereof |
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| CN202275881U (en) * | 2010-09-03 | 2012-06-13 | 三菱重工业株式会社 | Battery pack |
| CN203521699U (en) * | 2013-07-30 | 2014-04-02 | 上海电巴新能源科技有限公司 | Electrical connection structure capable of reducing contact resistance |
| US20160072117A1 (en) * | 2014-08-25 | 2016-03-10 | Samsung Sdi Co., Ltd. | Rechargeable battery having fixing terminal and battery module using the same |
| CN205211828U (en) * | 2015-09-22 | 2016-05-04 | 华南理工大学 | A pretension adapting unit for power battery utmost point post |
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| CN100521402C (en) * | 2004-12-14 | 2009-07-29 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN202333190U (en) * | 2011-11-16 | 2012-07-11 | 贵阳普天物流技术有限公司 | Floating connection device of battery box for motor-driven automobile |
| KR20150067694A (en) * | 2013-12-10 | 2015-06-18 | 한국단자공업 주식회사 | Connecting apparatus for battery Module |
| CN204651501U (en) * | 2015-04-30 | 2015-09-16 | 山东精工电子科技有限公司 | Soft-package battery group connector |
| CN106450090B (en) * | 2016-11-22 | 2020-04-07 | 湖南三迅新能源科技有限公司 | Power battery module |
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|---|---|---|---|---|
| CN202275881U (en) * | 2010-09-03 | 2012-06-13 | 三菱重工业株式会社 | Battery pack |
| CN203521699U (en) * | 2013-07-30 | 2014-04-02 | 上海电巴新能源科技有限公司 | Electrical connection structure capable of reducing contact resistance |
| US20160072117A1 (en) * | 2014-08-25 | 2016-03-10 | Samsung Sdi Co., Ltd. | Rechargeable battery having fixing terminal and battery module using the same |
| CN205211828U (en) * | 2015-09-22 | 2016-05-04 | 华南理工大学 | A pretension adapting unit for power battery utmost point post |
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| CN110534686A (en) * | 2019-08-29 | 2019-12-03 | 恒大新能源科技集团有限公司 | Busbar ruggedized construction, power supply mould group connection structure and battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113300054A (en) | 2021-08-24 |
| CN108666451B (en) | 2021-05-25 |
| CN113300054B (en) | 2023-04-28 |
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