CN113300054A - Power battery module - Google Patents
Power battery module Download PDFInfo
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- CN113300054A CN113300054A CN202110495425.4A CN202110495425A CN113300054A CN 113300054 A CN113300054 A CN 113300054A CN 202110495425 A CN202110495425 A CN 202110495425A CN 113300054 A CN113300054 A CN 113300054A
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- Prior art keywords
- battery module
- power battery
- mounting bracket
- plate
- accommodating cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a power battery module. The power battery module is provided with at least one battery monomer and at least one electric connecting plate, and the electric connecting plate is connected with the pole of the battery monomer in a floating mode and is used for series connection or parallel connection between different battery monomers. The electric connecting plate is provided with a first accommodating cavity at one end close to the single polar column of the battery, and a conductive elastic part is embedded in the first accommodating cavity. The power battery module further comprises a mounting bracket and a signal acquisition board, and the electric connection board is clamped in a first mounting groove in the lower surface of the mounting bracket. The electric connection plate is provided with a protruding part, and the signal acquisition plate covers the protruding part. The battery connecting plate in the power battery module is in floating connection with the single battery pole, so that the structure of the power battery module is simplified, and the power battery module is convenient to mount and dismount, and is convenient to use secondarily; meanwhile, the service life of the power battery module is prolonged. The signal acquisition board can reliably perform signal acquisition.
Description
The application is a divisional application of Chinese patent application with application date of 2017, 3 and 30, application number of 2017102031332 and invented name of 'power battery module'.
Technical Field
The invention relates to the field of battery grouping of electric automobiles, in particular to a power battery module.
Background
For the existing battery grouping technology, when batteries are connected in series and in parallel to form a group, the batteries are mainly connected in a mode of welding various battery poles on an electric connection sheet or fastening by screws. However, when the electric vehicle is under various severe working conditions, the battery module usually fails in structure and electrical connection after long-term use, thereby affecting the service life and safety of the power battery. In addition, when the existing battery pole is welded with the electric connection sheet, the power battery cannot be disassembled or the disassembling process is complex, so that the power battery is difficult to be secondarily utilized.
Therefore, the power battery module in the prior art has the defects of short service life, low safety and inconvenience for secondary use.
Disclosure of Invention
The invention aims to overcome the defects that a power battery module in the prior art has a short service life and is inconvenient to use secondarily, and provides a power battery module.
The invention solves the technical problems through the following technical scheme:
a power battery module is provided with at least one battery monomer and at least one electric connecting plate and is characterized in that the electric connecting plate is in floating connection with the pole of the battery monomer and is used for series connection or parallel connection of different battery monomers;
one end of the electric connecting plate, which is close to the pole of the battery monomer, is provided with a first accommodating cavity, and a conductive elastic part is embedded in the first accommodating cavity;
the power battery module also comprises an installation support, the installation support is pressed on the battery monomer, the installation support is provided with an upper surface and a lower surface which are oppositely arranged, a first installation groove is arranged on the lower surface of the installation support, and the electric connection plate is correspondingly clamped in the first installation groove;
the power battery module is characterized in that the power battery module further comprises a signal acquisition board arranged on the mounting bracket, each electric connection board is provided with an extending part, a hole matched with the extending part is correspondingly formed in the mounting bracket, the extending part penetrates through the hole and is exposed out of the upper surface of the mounting bracket, and the signal acquisition board covers the extending part.
In the technical scheme, the electric connection plate is in floating connection with the single battery, so that the structure of the electric connection plate can be adaptively adjusted as required even if the electric automobile is in a severe use working condition, the electric connection plate can be reliably and electrically connected with the pole of the single battery for a long time, and the service life of the power battery module is prolonged; in addition, the power battery module is convenient to mount and dismount, so that the power battery module can be conveniently used for the second time.
The electric connecting plate is electrically connected with the battery monomer pole through the conductive elastic piece, so that the power battery module is convenient to mount and dismount, and the power battery module can be conveniently secondarily used; in addition, the structure of the power battery module is simplified by electrically connecting the conductive elastic element with the pole.
The plurality of electric connection plates are electrically connected with the plurality of battery monomers through the mounting bracket, and the plurality of structurally independent electric connection plates are equivalently fixed on the mounting bracket, so that the structure of the power battery module can be simplified, and the reliability of the power battery module can be improved.
The signal acquisition board is electrically connected with the conductive elastic element and the battery monomer through the extending part, and the structure is simple and reliable, so that the signal acquisition board can reliably acquire signals. In addition, the signal acquisition board has the function of acquiring the temperature and the voltage of the battery module and balancing the battery.
The floating connection may be understood as that the electrical connection plate and the battery cell are not electrically connected in a fixed connection manner, but are electrically connected in a connection manner in which a distance between the electrical connection plate and a terminal of the battery cell is adjustable, for example, by stretching of an elastic element.
Preferably, the extension portion is provided with a threaded hole, the extension portion is located between the mounting bracket and the signal acquisition board, and the signal acquisition board is connected to the mounting bracket through a plurality of fasteners and a plurality of threaded holes.
In this technical scheme, the connected mode of signal acquisition board and installing support is simple and reliable, is favorable to simplifying the overall structure of power battery module.
Preferably, the power battery module further comprises a cover plate covering the signal acquisition plate.
In this scheme, the apron can play the protection the effect of signal acquisition board.
Preferably, the both ends of signal acquisition board are equipped with low pressure signal acquisition terminal, the both ends of apron are equipped with the confession the opening that low pressure signal acquisition terminal runs through.
Preferably, the upper surface of the mounting bracket is further provided with a third mounting groove for embedding the signal acquisition board and the cover plate, and the third mounting groove is recessed towards the single battery;
the outer surfaces of the two side walls of the cover plate are provided with flanges, and the cover plate is clamped in the third mounting groove through the flanges.
In this technical scheme, the signal acquisition board with the apron is located in the third mounting groove, do not additionally increase the height of power battery module, space utilization is higher.
Preferably, a second mounting groove is formed in the upper surface of the mounting support, a pressing element is embedded in the second mounting groove, and the pressing element is pressed on the top of the electric connection plate and is in floating connection with the electric connection plate.
In this technical scheme, the existence that compresses tightly the component makes even the power battery module also can make under comparatively abominable operating mode the electrically conductive elastic component carries out the electricity with the battery monomer reliably and is connected, reduces or has avoided the power battery module structural failure or the electricity that causes owing to rock etc. and connect inefficacy, has improved the life and the security of power battery module.
Preferably, the first accommodating cavity has a bottom surface and an inner wall surface, the conductive elastic member has a pressing portion and a contact portion, the pressing portion abuts against the bottom surface of the first accommodating cavity, and the contact portion is exposed out of the outer surface of the electrical connection plate and abuts against the surface of the single battery post.
Preferably, a concave portion is further disposed between the bottom surface and the inner wall surface of the first accommodating cavity, and the concave portion is recessed towards the outer wall surface of the electrical connection board along the radial direction of the electrical connection board.
In this technical scheme, be formed with similar wedge-shaped structure in the first holding intracavity, can block comparatively reliably electrically conductive elastic component. The structure of the first accommodating cavity is simpler, namely, the conductive elastic part can be reliably embedded in the first accommodating cavity through the simpler structure, and the cost is lower. In practice, the first accommodating cavity may be configured as a dovetail groove.
Preferably, the conductive elastic element is in interference fit with the first accommodating cavity and is fixed between the electric connection plate and the single battery pole in an extruding manner.
Preferably, the second mounting groove is disposed corresponding to the first accommodating cavity, and a center line of the second mounting groove coincides with a center line of the corresponding first accommodating cavity.
Preferably, the pressing element is made of an insulating plastic material;
the material of compressing element is nylon.
Preferably, the compressing element has a connecting portion and a compressing portion, the connecting portion is matched with the second mounting groove, the compressing portion is connected to the bottom surface of the connecting portion along the axial direction of the connecting portion, a second accommodating cavity is arranged in the compressing portion, the second accommodating cavity extends to the bottom surface of the connecting portion, an elastic element is arranged in the second accommodating cavity, and the head end of the elastic element is arranged on the bottom surface of the connecting portion and the tail end of the elastic element is arranged on the top of the electric connection plate in a pressing manner.
In the technical scheme, the elastic element can elastically adjust the relative height between the bottom surface of the connecting part and the electric connecting plate according to actual needs, so that the electric connecting plate and the pressing element are in floating connection, the conductive elastic element can be reliably embedded in the first accommodating cavity, and the conductive elastic element can be reliably electrically connected to the single pole of the battery.
Preferably, the second accommodating cavity is further provided with a limiting part, the limiting part is arranged on the bottom surface of the connecting part and extends along the axial direction of the connecting part, and the central line of the limiting part is overlapped with the central line of the second mounting groove.
Preferably, the limit part is made of flame-retardant and insulating elastic plastic materials;
the limiting part is made of nylon.
In the technical scheme, on one hand, the limiting part can limit the elastic element and limit the elastic element to move along the axial direction perpendicular to the connecting part; on the other hand, the limiting part is made of elastic plastic materials, so that the limiting part can directly and elastically adjust the relative height between the bottom surface of the connecting part and the electric connecting plate, the structure is simple, and finally the conductive elastic part can still be reliably and electrically connected with the single pole of the battery even under severe working conditions.
Preferably, the top of the electrical connection board is provided with a protruding part, and the center line of the protruding part is overlapped with the center line of the limiting part and the center line of the second mounting groove;
two ends of the elastic element are respectively sleeved on the limiting part and the protruding part.
In the technical scheme, on one hand, the limiting part is matched with the protruding part, so that the elastic element can be reliably positioned; on the other hand, the elastic element elastically adjusts the relative height between the bottom surface of the connecting part and the electric connecting plate through the matching of the limiting part and the protruding part, and as the center of the protruding part is positioned on the central line of the first accommodating cavity, the pressing force of the pressing part can be intensively transmitted to the conductive elastic element, and finally the conductive elastic element can be more reliably electrically connected to the pole of the battery cell.
Preferably, a positioning part is arranged on the outer surface of the pressing part along the circumferential direction of the pressing part, and the plane where the positioning part is located is parallel to the cross section of the pressing part;
the mounting bracket is provided with a positioning groove, and the positioning groove is matched with the positioning part.
In this technical scheme, the cooperation of location portion with the constant head tank has restricted the removal of compressing element along being on a parallel with the axial direction of connecting portion reliably, and the structure is comparatively simple. The positioning part may be provided as a plurality of sub-positioning parts distributed at intervals, or may be directly provided as one annular positioning part.
Preferably, the compressing portion, the connecting portion and the limiting portion are of an integral structure.
Preferably, the compressing portion, the connecting portion, the limiting portion and the positioning portion are of an integral structure, and the protruding portion and the electric connecting plate are of an integral structure.
In the technical scheme, the pressing part, the connecting part, the limiting part and the positioning part are arranged into an integral structure, and meanwhile, the protruding part and the electric connecting plate are also arranged into an integral structure, so that various connecting modes are omitted, and the installation and the disassembly are simple; importantly, the influence on the reliability of the pressing element caused by various connection errors is avoided, and therefore the reliability of the electric connection between the conductive elastic element and the pole is finally further improved.
Preferably, the elastic element is a spring.
Preferably, a third accommodating cavity is arranged on the mounting bracket, the top of the third accommodating cavity extends to the lower surface of the mounting bracket, and the third accommodating cavity is communicated with the first mounting groove;
and an elastic pressing element is arranged in the third accommodating cavity, is pressed on the top of the electric connection plate and is in floating connection with the electric connection plate.
Preferably, the third accommodating cavity is arranged corresponding to the first accommodating cavity, and a center line of the third accommodating cavity coincides with a center line of the corresponding first accommodating cavity.
Preferably, a limiting portion is arranged in the third accommodating cavity, the limiting portion extends from the bottom of the third accommodating cavity along the axial direction of the third accommodating cavity, and the central line of the limiting portion is overlapped with the central line of the third accommodating cavity;
the top of the electric connection plate is provided with a protruding part, and the central line of the protruding part is superposed with the central line of the limiting part;
two ends of the elastic pressing element are respectively sleeved on the limiting part and the protruding part.
In the technical scheme, on one hand, the limiting part is matched with the protruding part, so that the elastic pressing element can be reliably positioned; on the other hand, the elastic pressing element elastically adjusts the relative height between the bottom surface of the third accommodating cavity and the electric connection plate through the matching of the limiting part and the protruding part, so that the conductive elastic part can be reliably and electrically connected to the single pole of the battery.
Preferably, the limiting portion and the third accommodating cavity are of an integral structure, and the protruding portion and the electric connection plate are of an integral structure.
In the technical scheme, the limiting part and the mounting bracket are of an integral structure, the conductive elastic part is reliably in floating connection with the battery monomers on the basis of the structure of the mounting bracket, the structure is simpler, and the reliability is higher.
Preferably, the elastic pressing element is a spring.
Preferably, the two ends of the mounting bracket are provided with high-voltage output parts, and the high-voltage output parts are used for mounting high-voltage plug terminals.
Preferably, the conductive elastic member is a conductive spring.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the battery connecting plate of the power battery module is in floating connection with the single battery pole, so that the structure of the power battery module is simplified, and the power battery module is convenient to mount and dismount, so that the power battery module can be used secondarily; meanwhile, the service life of the power battery module is prolonged;
the electric connecting plate is electrically connected with the battery monomer pole through the conductive elastic piece, so that the power battery module is convenient to mount and dismount, and the power battery module can be conveniently secondarily used; in addition, the structure of the power battery module is simplified by electrically connecting the conductive elastic element with the pole;
the plurality of electric connection plates are electrically connected with the plurality of battery monomers through the mounting bracket, namely, the plurality of electric connection plates which are structurally independent are all fixed on the mounting bracket, so that the structure of the power battery module can be simplified, and the reliability of the power battery module can be improved;
the signal acquisition board is electrically connected with the conductive elastic element and the battery monomer through the extending part, and the structure is simple and reliable, so that the signal acquisition board can reliably acquire signals. In addition, the signal acquisition board has the function of acquiring the temperature and the voltage of the battery module and balancing the battery.
Drawings
Fig. 1 is a schematic view of the overall structure of a power battery module according to embodiment 1 of the present invention.
Fig. 2 is an exploded schematic view of a power battery module according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of a part of the internal structure of a power battery module according to embodiment 1 of the present invention.
Fig. 4 is a schematic front view of an electrical connection board in a power battery module according to embodiment 1 of the present invention.
Fig. 5 is a schematic reverse structure diagram of an electrical connection board in a power battery module according to embodiment 1 of the present invention.
Fig. 6 is a schematic structural diagram of an electrical connection board and a mounting bracket in a power battery module according to embodiment 1 of the present invention.
Fig. 7 is a schematic structural diagram of a mounting bracket in a power battery module according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of a pressing element in the power battery module according to embodiment 1 of the present invention.
Fig. 9 is a schematic view of an internal structure of a pressing element in the power battery module according to embodiment 1 of the present invention.
Fig. 10 is a schematic view of a part of the internal structure of a power battery module according to embodiment 2 of the present invention.
Description of reference numerals:
10: cover plate
101: flange
102: groove
20: signal acquisition board
30: mounting bracket
301: first mounting groove
302: second mounting groove
303: locating slot
304: third mounting groove
305: high-voltage output part
306: the third containing cavity
307: elastic pressing element
308: second limit part
40: electric connection board
401: a first accommodating cavity
402: bottom surface
403: inner wall surface
404: projecting part
405: extension part
50: battery monomer
60: conductive elastic member
70: base plate
80: pressing element
801: connecting part
802: pressing part
803: second containing cavity
804: elastic element
805: a first limit part
806: positioning part
Detailed Description
The invention will be more clearly and completely described by taking 2 embodiments together with the attached drawings.
Example 1
As shown in fig. 1 and 2, the power battery module has a cover plate 10, a signal acquisition plate 20, a mounting bracket 30, a plurality of electrical connection plates 40, a plurality of battery cells 50, a conductive elastic member 60, and a bottom plate 70. The plurality of battery monomers 50 are correspondingly clamped in the plurality of limiting grooves on the bottom plate 70 one by one, the mounting bracket 30 and the bottom plate 70 are oppositely arranged, the mounting bracket 30 is connected with the bottom plate 70 through a plurality of screws, and the mounting bracket 30 is pressed on the plurality of battery monomers 50; the cover plate 10 is covered on the signal acquisition plate 20; the electrical connection plate 40 and the poles of the plurality of battery cells 50 are floatingly connected.
The electric connection plate 40 is in floating connection with the single battery 50, so that the structure of the electric automobile can be adjusted in a self-adaptive manner as required even if the electric automobile is in a severe working condition, the electric connection plate 40 can be electrically connected with the pole of the single battery 50 reliably for a long time, and the service life of the power battery module is prolonged; in addition, the power battery module is convenient to mount and dismount, so that the power battery module can be conveniently used for the second time.
In this embodiment, as shown in fig. 3 and 4, one end of each electrical connection plate 40 close to the terminal of the battery cell 50 has a first receiving cavity 401, a conductive elastic member 60 is embedded in the first receiving cavity 401, and the conductive elastic member 60 is in interference fit with the first receiving cavity 401. The first receiving cavity 401 has a bottom surface 402 and an inner wall surface 403, and the conductive elastic member 60 has a pressing portion (not shown) abutting against the bottom surface 402 of the first receiving cavity 401 and a contact portion (not shown) exposed on the outer surface of the electrical connection plate 40 and abutting against the surface of the terminal of the battery cell 50. In addition, in the present embodiment, a concave portion (not shown) is further provided between the bottom surface 402 and the inner wall surface 403 of the first housing chamber 401, and the concave portion is recessed toward the outer wall surface of the electrical connection plate 40 in the radial direction of the electrical connection plate 40.
In other alternative embodiments, for a plurality of electrical connection plates 40, the first receiving cavity 401 may be selectively disposed on only one of the electrical connection plates 40 or on another number of electrical connection plates 40, and is not limited to the disposition in this embodiment.
In this embodiment, a wedge-like structure is formed in the first accommodating cavity 401, so that the conductive elastic member 60 can be reliably clamped, and the structure is simple and the cost is low. In fact, in the present embodiment, the first receiving cavity 401 is configured as a dovetail groove. In other embodiments, the first receiving cavity 401 may be configured in other structures according to actual needs, as long as the conductive elastic member 60 can be reliably electrically connected with the terminal of the battery cell 50. In addition, in this embodiment, the conductive elastic member 60 may be a conductive spring, and in order to realize the floating connection between the electrical connection plate 40 and the terminal of the battery cell 50, the depth of the first receiving cavity 401 is 60% to 80% of the height of the conductive spring.
In the present embodiment, as shown in fig. 2, 6 and 7, the mounting bracket 30 has an upper surface and a lower surface which are oppositely disposed, and a plurality of first mounting grooves 301 are provided on the lower surface of the mounting bracket 30. The plurality of electric connection plates 40 are correspondingly clamped in the plurality of first mounting grooves 301 one by one; the upper surface of installing support 30 is equipped with a plurality of second mounting grooves 302, and a plurality of second mounting grooves 302 and a plurality of first holding chamber 401 one-to-one set up, and the central line of second mounting groove 302 and the coincidence of the central line of the first holding chamber 401 that corresponds, each embedded compressing element 80 that is equipped with of second mounting groove 302, compressing element 80 press locate the top of electric connection plate 40 and float with electric connection plate 40 and be connected. In addition, the compressing element 80 is made of an insulating plastic material, and in the present embodiment, the compressing element 80 is made of nylon.
In the present embodiment, the plurality of electrical connection plates 40 are mounted on the poles of the battery cells 50 by the mounting bracket 30, which corresponds to fixing the plurality of structurally independent electrical connection plates 40 to the mounting bracket 30, and thus, the structure of the power battery module can be simplified, and the reliability of the power battery module can be improved. The existence of compressing tightly component 80 makes even the power battery module also can make electrically conductive elastic component 60 be connected with battery monomer 50 electricity reliably under being in comparatively abominable operating mode, reduces or has avoided because rock the reason such as cause power battery module structural failure or electricity connection failure have improved the life and the security of power battery module.
As shown in fig. 2, 8 and 9, the pressing member 80 has a connection portion 801 and a pressing portion 802, the connection portion 801 is fitted to the second mounting groove 302, and the pressing portion 802 is connected to a bottom surface of the connection portion 801 in an axial direction of the connection portion 801. The compressing portion 802 has a second receiving cavity 803, the second receiving cavity 803 extends to the bottom surface of the connecting portion 802, an elastic element 804 is disposed in the second receiving cavity 803, a head end of the elastic element 804 is disposed on the bottom surface of the connecting portion 801, and a tail end of the elastic element is pressed on the top of the electrical connection board 40. In this embodiment, the elastic element 804 is a spring.
The elastic element 804 can elastically adjust the relative height between the bottom surface of the connection portion 801 and the electrical connection plate 40 according to actual needs, so that the electrical connection plate 40 and the pressing element 80 are in floating connection, the conductive elastic element 60 can be reliably embedded in the first accommodating cavity 401, and the conductive elastic element 60 can be reliably electrically connected to the pole of the battery cell 50.
As shown in fig. 3, 5 and 9, the second receiving cavity 803 further has a first limiting portion 805 therein, the first limiting portion 805 is disposed on the bottom surface of the connecting portion 801 and extends along the axial direction of the connecting portion 801; the top of the electrical connection board 40 is provided with a protruding part 404, and the center line of the protruding part 404 coincides with the center line of the first limiting part 805 and the center line of the second mounting groove 302; the head end of the elastic element 804 is sleeved on the first position-limiting portion 805, the tail end is sleeved on the protruding portion 404, and a gap is formed between the tail end surface of the first position-limiting portion 805 and the tail end surface of the protruding portion 404. The first stopper 805 is made of a flame-retardant and insulating elastic-plastic material, and in this embodiment, the first stopper 805 is made of nylon.
In the present embodiment, on one hand, the first limiting portion 805 and the protruding portion 404 cooperate to reliably position the elastic element 804; on the other hand, the elastic element 804 elastically adjusts the relative height between the bottom surface of the connecting portion 801 and the electrical connection plate 40 through the cooperation of the first limiting portion 805 and the protruding portion 404, so that the pressing force of the pressing portion 802 can be intensively transmitted to the conductive elastic element 60 due to the center of the protruding portion 404 being located on the center line of the first receiving cavity 401, and finally the conductive elastic element 60 can be more reliably electrically connected to the pole of the battery cell 50.
In addition, as shown in fig. 3, 8 and 9, a positioning portion 806 is disposed on an outer surface of the pressing portion 802 along a circumferential direction of the pressing portion 802, and a plane where the positioning portion 806 is located is parallel to a cross section of the pressing portion 802; the mounting bracket 30 has a positioning groove 303, and the positioning groove 303 is matched with the positioning part 806. The fitting of the positioning portion 806 with the positioning groove 303 reliably restricts the movement of the pressing member 80 in the direction parallel to the axial direction of the connecting portion 801, and the structure is simple.
In the present embodiment, the positioning portion 806 is provided as a ring-shaped positioning portion around the circumferential direction of the pressing portion 802. In other embodiments, the positioning portion 806 may also be provided as a plurality of sub-positioning portions distributed at intervals.
In this embodiment, the pressing portion 802, the connecting portion 801, the first position-limiting portion 805, and the positioning portion 806 are an integral structure, and the protruding portion 404 and the electrical connection plate 40 are an integral structure. Therefore, various connection modes are omitted, and the installation and the disassembly are simple; it is important to avoid the influence on the reliability of the pressing member 80 due to various connection errors, thereby finally further improving the reliability of the electrical connection between the conductive elastic member 60 and the post.
In other embodiments, the conductive elastic member 60 may be provided in other structures, not limited to a conductive spring; likewise, the elastic element 804 may be provided in other configurations, not limited to a spring.
As shown in fig. 2 and fig. 4 to 6, the middle portion of the mounting bracket 30 is provided with a third mounting groove 304 recessed toward the battery cell 50, and the length direction of the third mounting groove 304 is parallel to the length direction of the power battery module. The electrical connection board 40 has a protruding portion 405, the protruding portion on the mounting bracket 30 located at both sides of the third mounting groove 304 is correspondingly provided with a hole (not shown) adapted to the protruding portion 405, the protruding portion 405 passes through the hole and is located on the upper surface of the third mounting groove 304 of the mounting bracket 30, the protruding portion 405 is provided with a threaded hole, the signal acquisition board in fig. 2 is installed in the third mounting groove 304 and covers the protruding portion 405, and is connected to the mounting bracket 30 through a plurality of fasteners and a plurality of threaded holes.
As shown in fig. 2, the cover plate 10 is mounted on the signal collecting plate 20 in the third mounting groove 304, and the outer surfaces of the two side walls of the cover plate 10 are provided with flanges 101, and a groove for the flanges 101 to be snapped and fixed is provided at a corresponding position of the third mounting groove 304.
In the present embodiment, the signal acquisition board 20 is electrically connected to the battery cell 50 by contacting the protruding portion 405 of the electrical connection board 40, so as to obtain the temperature, the voltage and the battery balance performance of the battery module, and the structure is simple and reliable, so that the signal acquisition board 20 can reliably acquire the signal. The cover plate 10 can play a role in protecting the signal acquisition plate 20, and in addition, the cover plate 10 is arranged in the third mounting groove 304, so that the height of the power battery module is not additionally increased, and the space utilization rate is higher.
In the present embodiment, both ends of the signal collecting board 20 are provided with low voltage signal collecting terminals (not shown) for outputting collected data of the battery module and inputting control signals, and as shown in fig. 2, both ends of the cover board 10 are provided with grooves 102 adapted to the low voltage signal collecting terminals. As shown in fig. 1, 2 and 6, the mounting bracket 30 is provided with high voltage output parts 305 at both ends thereof, and the high voltage output parts 305 are used for connecting to high voltage socket terminals.
Example 2
The structure of the power battery module in this embodiment is substantially the same as that of the power battery module in embodiment 1, except that: in this embodiment, the pressing member in embodiment 1 is eliminated, and the structure of the mounting bracket 30 is appropriately modified.
As shown in fig. 10, a third accommodating cavity 306 is formed in the mounting bracket 30, the top of the third accommodating cavity 306 extends to the lower surface of the mounting bracket 30, the third accommodating cavity 306 is arranged corresponding to the first accommodating cavity 401, the center line of the third accommodating cavity 306 is overlapped with the center line of the corresponding first accommodating cavity 401, and the third accommodating cavity 306 is communicated with the first mounting groove for arranging the electrical connection board 40; an elastic pressing element 307 is arranged in the third accommodating cavity 306, and the elastic pressing element 307 is pressed on the top of the electrical connection plate 40 and is in floating connection with the electrical connection plate 40.
In addition, in the present embodiment, a second limiting portion 308 is disposed in the third accommodating cavity 306, the second limiting portion 308 extends from the bottom of the third accommodating cavity 306 along the axial direction of the third accommodating cavity 306, and the center line of the second limiting portion 308 coincides with the center line of the third accommodating cavity 306; the top of the electrical connection board 40 has a protrusion 404, and the center line of the protrusion 404 coincides with the center line of the second limiting portion 308; two ends of the elastic pressing element 307 are respectively sleeved on the second limiting portion 308 and the protruding portion 404. In the present embodiment, the elastic pressing member 307 is a spring.
On one hand, the second limiting portion 308 and the protruding portion 404 cooperate to reliably position the elastic pressing element 307; on the other hand, the elastic pressing element 307 elastically adjusts the relative height between the bottom surface of the third accommodating cavity 306 and the electrical connection plate 40 through the cooperation of the second limiting portion 308 and the protruding portion 404, so that the conductive elastic member 60 can be reliably electrically connected to the pole of the battery cell 50.
In this embodiment, the second limiting portion 308 and the third receiving cavity 306 are an integral structure, and the protruding portion 404 and the electrical connection plate 40 are an integral structure, which is equivalent to the second limiting portion 308 and the mounting bracket 30 being an integral structure, so that the floating connection between the conductive elastic member 60 and the battery cell 50 is reliably realized on the basis of utilizing the structure of the mounting bracket 30, the structure is simpler, and the reliability is higher.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (26)
1. A power battery module is provided with at least one battery monomer and at least one electric connecting plate, and is characterized in that the electric connecting plate is in floating connection with the pole of the battery monomer and is used for series connection or parallel connection of different battery monomers;
one end of the electric connecting plate, which is close to the pole of the battery monomer, is provided with a first accommodating cavity, and a conductive elastic part is embedded in the first accommodating cavity;
the power battery module also comprises an installation support, the installation support is pressed on the battery monomer, the installation support is provided with an upper surface and a lower surface which are oppositely arranged, a first installation groove is arranged on the lower surface of the installation support, and the electric connection plate is correspondingly clamped in the first installation groove;
the power battery module is characterized in that the power battery module further comprises a signal acquisition board arranged on the mounting bracket, each electric connection board is provided with an extending part, a hole matched with the extending part is correspondingly formed in the mounting bracket, the extending part penetrates through the hole and is exposed out of the upper surface of the mounting bracket, and the signal acquisition board covers the extending part.
2. The power battery module of claim 1, wherein the extension portion has a threaded hole, the extension portion is located between the mounting bracket and the signal acquisition board, and the signal acquisition board is connected to the mounting bracket via a plurality of fasteners and a plurality of threaded holes.
3. The power battery module of claim 2, further comprising a cover plate covering the signal acquisition board.
4. The power battery module as claimed in claim 3, wherein the signal collecting plate is provided with low voltage signal collecting terminals at two ends thereof, and the cover plate is provided with openings at two ends thereof for the low voltage signal collecting terminals to pass through.
5. The power battery module as claimed in claim 3, wherein the mounting bracket further has a third mounting groove on the upper surface thereof for the signal collecting plate and the cover plate to be inserted into, the third mounting groove being recessed toward the battery cells;
the outer surfaces of the two side walls of the cover plate are provided with flanges, and the cover plate is clamped in the third mounting groove through the flanges.
6. The power battery module as claimed in claim 1, wherein a second mounting groove is formed in the upper surface of the mounting bracket, a pressing element is embedded in the second mounting groove, and the pressing element is pressed on the top of the electrical connection plate and is in floating connection with the electrical connection plate.
7. The power battery module of claim 1, wherein the first receiving cavity has a bottom surface and an inner wall surface, the conductive elastic member has a pressing portion and a contact portion, the pressing portion abuts against the bottom surface of the first receiving cavity, and the contact portion is exposed out of the outer surface of the electrical connection plate and abuts against the surface of the single battery post.
8. The power battery module as claimed in claim 7, wherein a recess is further provided between the bottom surface and the inner wall surface of the first accommodating cavity, and the recess is recessed toward the outer wall surface of the electrical connection plate along the radial direction of the electrical connection plate.
9. The power battery module of claim 1, wherein the conductive elastic element is in interference fit with the first accommodating cavity and is fixed between the electric connection plate and the single battery post in a squeezing manner.
10. The power battery module as claimed in claim 6, wherein the second mounting groove is disposed corresponding to the first receiving cavity, and a center line of the second mounting groove coincides with a center line of the corresponding first receiving cavity.
11. The power cell module of claim 10, wherein the compression element is made of an insulating plastic material;
the material of compressing element is nylon.
12. The power battery module as claimed in claim 10, wherein the compressing element has a connecting portion and a compressing portion, the connecting portion is fitted with the second mounting groove, the compressing portion is connected to the bottom surface of the connecting portion along the axial direction of the connecting portion, a second receiving cavity is formed in the compressing portion, the second receiving cavity extends to the bottom surface of the connecting portion, an elastic element is arranged in the second receiving cavity, and the head end of the elastic element is arranged on the bottom surface of the connecting portion, and the tail end of the elastic element is pressed on the top of the electrical connection plate.
13. The power battery module as claimed in claim 12, wherein the second receiving cavity further has a limiting portion disposed on the bottom surface of the connecting portion and extending along the axial direction of the connecting portion, and a central line of the limiting portion coincides with a central line of the second mounting groove.
14. The power battery module of claim 13, wherein the limiting portion is made of a flame retardant, insulating, elastoplastic material;
the limiting part is made of nylon.
15. The power cell module of claim 14,
the top of the electric connection plate is provided with a protruding part, and the center line of the protruding part is overlapped with the center line of the limiting part and the center line of the second mounting groove;
two ends of the elastic element are respectively sleeved on the limiting part and the protruding part.
16. The power battery module of claim 15, wherein a positioning portion is arranged on the outer surface of the compressing portion along the circumferential direction of the compressing portion, and the plane of the positioning portion is parallel to the cross section of the compressing portion;
the mounting bracket is provided with a positioning groove, and the positioning groove is matched with the positioning part.
17. The power battery module as claimed in claim 13, wherein the compressing portion, the connecting portion and the limiting portion are an integral structure.
18. The power battery module as claimed in claim 16, wherein the compressing portion, the connecting portion, the limiting portion and the positioning portion are integrally formed, and the protruding portion and the electrical connection plate are integrally formed.
19. The power battery module of claim 12, wherein the resilient member is a spring.
20. The power battery module as claimed in claim 1, wherein a third accommodating cavity is formed in the mounting bracket, the top of the third accommodating cavity extends to the lower surface of the mounting bracket, and the third accommodating cavity is communicated with the first mounting groove;
and an elastic pressing element is arranged in the third accommodating cavity, is pressed on the top of the electric connection plate and is in floating connection with the electric connection plate.
21. The power battery module as claimed in claim 20, wherein the third receiving cavity is disposed corresponding to the first receiving cavity, and a center line of the third receiving cavity coincides with a center line of the corresponding first receiving cavity.
22. The power battery module as claimed in claim 21, wherein a position-limiting portion is disposed in the third cavity, the position-limiting portion extends from the bottom of the third cavity along the axial direction of the third cavity, and the center line of the position-limiting portion coincides with the center line of the third cavity;
the top of the electric connection plate is provided with a protruding part, and the central line of the protruding part is superposed with the central line of the limiting part;
two ends of the elastic pressing element are respectively sleeved on the limiting part and the protruding part.
23. The power battery module as claimed in claim 22, wherein the position-limiting portion and the third receiving cavity are an integral structure, and the protrusion and the electrical connection plate are an integral structure.
24. The power cell module of claim 23, wherein the resilient compression element is a spring.
25. The power battery module as claimed in claim 1, wherein the mounting bracket is provided with high voltage output parts at two ends, and the high voltage output parts are used for mounting high voltage plug terminals.
26. The power battery module as claimed in any one of claims 1-25, wherein the conductive elastic member is a conductive spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495425.4A CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495425.4A CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
| CN201710203133.2A CN108666451B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710203133.2A Division CN108666451B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
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| CN113300054A true CN113300054A (en) | 2021-08-24 |
| CN113300054B CN113300054B (en) | 2023-04-28 |
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| CN202110495425.4A Active CN113300054B (en) | 2017-03-30 | 2017-03-30 | Power battery module |
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Cited By (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 |
Families Citing this family (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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1790836A (en) * | 2004-12-14 | 2006-06-21 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN202275881U (en) * | 2010-09-03 | 2012-06-13 | 三菱重工业株式会社 | Battery pack |
| 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 |
| 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 |
| 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 |
| CN106450090A (en) * | 2016-11-22 | 2017-02-22 | 湖南三迅新能源科技有限公司 | Power battery module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102306442B1 (en) * | 2014-08-25 | 2021-09-28 | 삼성에스디아이 주식회사 | Battery module |
| CN205211828U (en) * | 2015-09-22 | 2016-05-04 | 华南理工大学 | A pretension adapting unit for power battery utmost point post |
-
2017
- 2017-03-30 CN CN201710203133.2A patent/CN108666451B/en active Active
- 2017-03-30 CN CN202110495425.4A patent/CN113300054B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1790836A (en) * | 2004-12-14 | 2006-06-21 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN202275881U (en) * | 2010-09-03 | 2012-06-13 | 三菱重工业株式会社 | Battery pack |
| 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 |
| 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 |
| 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 |
| CN106450090A (en) * | 2016-11-22 | 2017-02-22 | 湖南三迅新能源科技有限公司 | Power battery module |
Cited By (2)
| 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 |
| CN115084764B (en) * | 2022-08-01 | 2024-05-24 | 深圳市泽塔电源系统有限公司 | Battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108666451B (en) | 2021-05-25 |
| CN113300054B (en) | 2023-04-28 |
| CN108666451A (en) | 2018-10-16 |
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