CN108321317B - Power battery's power output structure - Google Patents
Power battery's power output structure Download PDFInfo
- Publication number
- CN108321317B CN108321317B CN201810320670.XA CN201810320670A CN108321317B CN 108321317 B CN108321317 B CN 108321317B CN 201810320670 A CN201810320670 A CN 201810320670A CN 108321317 B CN108321317 B CN 108321317B
- Authority
- CN
- China
- Prior art keywords
- management box
- power
- battery
- total
- battery management
- 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.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 150000001879 copper Chemical class 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
- H01M50/543—Terminals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention provides a power output structure of a power battery, which can solve the problem that the traditional connecting structure of a copper bar and a bolt cannot meet the requirement of quick assembly and disassembly of the power battery of an electric automobile. The power battery is formed by connecting a plurality of power battery modules in series and fastening the power battery modules into a whole through a screw rod, a battery management box is embedded in an end clamping plate assembly, a total power supply output terminal is arranged in an inner cavity of the battery management box, an extension section arranged on one side of a power supply output end of the power battery penetrates through a power supply output polar plate, an insulating plate and an end clamping plate assembly in sequence and is tightly connected through nuts, a positive pole and a negative pole arranged on the power supply output polar plate respectively penetrate through the insulating plate, the end clamping plate assembly and a positive electrode output through hole and a negative electrode output through hole on the battery management box in sequence and then extend into the inner cavity of the battery management box to be connected with the total power supply output terminal, and the total power supply output terminal outwards penetrates through the battery management box and then is connected with a lead-out end wire.
Description
Technical Field
The invention relates to the field of power batteries of electric automobiles, in particular to a power output structure of a power battery.
Background
The power battery of the existing electric automobile adopts a copper bar and is connected with the output tab of the power supply through a bolt for power supply output, and the efficiency of installation and disassembly of the power battery is quite low although the structure is simple, so that the requirement of rapid assembly and disassembly of the power battery of the existing electric automobile cannot be met.
Disclosure of Invention
The invention provides a power output structure of a power battery, which can solve the problem that the traditional connecting structure of a copper bar and a bolt cannot meet the requirement of quick assembly and disassembly of the power battery of an electric automobile.
The technical scheme is that the power output structure of the power battery comprises a plurality of power battery modules which are connected in series and are fastened and connected into a whole through screws, and the power output structure is characterized in that: the battery management box is characterized by comprising a power output polar plate, an insulating plate and an end clamping plate assembly, wherein a battery management box is embedded in the end clamping plate assembly, a total power output terminal is arranged in an inner cavity of the battery management box, an extension section is arranged on one side of a power output end of a power battery by a screw rod, the extension section sequentially penetrates through the power output polar plate, the insulating plate and the end clamping plate assembly, stretches into the inner cavity of the battery management box and is tightly connected through nuts, a positive pole post and a negative pole post are arranged on the power output polar plate, the insulating plate, the end clamping plate assembly and the battery management box, concentric positive pole output through holes and negative pole output through holes of battery electrodes are formed in the insulating plate, the end clamping plate assembly and the battery management box, the positive pole output through holes and the negative pole output through holes of the battery management box sequentially penetrate through the inner cavity of the battery management box and are connected with the total power output terminal, and the total power output terminal outwards penetrates through the battery management box and then is connected with an outgoing terminal wire.
As an improvement of a power output structure of a power battery, the power output polar plate comprises a total positive aluminum plate and a total negative aluminum plate, wherein the total positive aluminum plate and the total negative aluminum plate are clamped between a power output end of the power battery and an insulating plate side by side, the total positive aluminum plate is sleeved on a screw rod positioned on the right side, the total negative aluminum plate is sleeved on a screw rod positioned on the left side, the bottom of the total positive aluminum plate is provided with a positive pole, and the bottom of the total negative aluminum plate is provided with a negative pole.
As an improvement of the power output structure of the power battery, the bottom of the insulating plate is provided with two sleeves, and the positive pole post and the negative pole post respectively pass through the corresponding sleeves and then respectively pass through the terminal clamping plate assembly and the positive pole output through hole and the negative pole output through hole on the battery management box in sequence.
As an improvement of a power output structure of a power battery, the total power output terminal comprises a total power positive electrode output terminal and a total power negative electrode output terminal, wherein the positive electrode post stretches into an inner cavity of a battery management box and then is connected with the total power positive electrode output terminal through a positive electrode management element, the negative electrode post stretches into the inner cavity of the battery management box and then is connected with the total power negative electrode output terminal through a negative electrode current detection element, and the total power positive electrode output terminal and the total power negative electrode output terminal respectively penetrate through the battery management box from inside to outside and then are connected with a positive electrode lead-out end line and a negative electrode lead-out end line.
As an improvement of the power output structure of the power battery, the upper end of the positive electrode management element is sleeved on the positive electrode output terminal of the total power supply, the upper end of the negative electrode current detection element is sleeved on the negative electrode output terminal of the total power supply, and the lower ends of the positive electrode management element and the negative electrode current detection element are respectively and tightly connected with the positive electrode post and the negative electrode post through bolts.
As an improvement of the power output structure of the power battery, the end clamping plate assembly is a shell with an open outer side, and the battery management box is embedded in the end clamping plate assembly.
As an improvement of a power output structure of a power battery, the battery management box comprises a management box bottom shell and a management box upper cover, wherein the outer side of the management box bottom shell is open, the outer side of the management box bottom shell is covered and sealed by the management box upper cover and is fastened by self-tapping screws, and an inner cavity of the battery management box is formed by enclosing the management box bottom shell and the management box upper cover.
The invention has the beneficial effects that: the power output structure combining the traditional copper bar and the bolt is abandoned, and the positive pole post and the negative pole post are arranged on the power output polar plate, and the concentric positive pole output through holes and the concentric negative pole output through holes are formed on the insulating plate, the end clamping plate assembly and the battery management box, so that the positive pole post and the negative pole post are only required to be inserted into the corresponding positive pole output through holes and the corresponding negative pole output through holes Kong Jineng to be connected with the corresponding main power output terminal in the battery management box in sequence, the assembly and the disassembly are convenient and quick, the assembly and the disassembly efficiency can be greatly improved, and the replacement of the power battery of the electric automobile is facilitated; when the power output polar plate, the insulating plate and the end clamping plate assembly are sleeved and tightly connected with the extending section of the connecting screw rod of the battery module, the battery management box is embedded in the end clamping plate assembly, so that the whole output structure is compact, and the space utilization rate of the power battery mounting bin can be greatly improved; in addition, the connection between the positive pole post, the negative pole post and the corresponding total power supply output terminal is positioned in the inner cavity of the battery management box, so that the safety of power supply output is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is an exploded view of a power output structure of a power cell according to the present invention;
FIG. 2 is a schematic cross-sectional view of a power output structure of a power battery according to the present invention;
FIG. 3 is an enlarged schematic view of a management box bottom shell of the battery management box according to the present invention;
fig. 4 is a schematic exploded view of a battery management case according to the present invention.
Detailed Description
Referring to fig. 1 and 2, in the power output structure of the power battery, the power battery is formed by connecting a plurality of power battery modules 22 in series and fastening and connecting the power battery modules into a whole through screws, wherein the screws are provided with a left screw 8 and a right screw 9; the battery management box is characterized by further comprising a power output polar plate, an insulating plate 5 and an end clamping plate assembly 7, wherein a battery management box is embedded in the end clamping plate assembly 7, a total power output terminal is arranged in an inner cavity of the battery management box, an extension section 10 is arranged on one side of a power output end of the power battery through a left screw rod 8 and a right screw rod 9, the extension section 10 sequentially penetrates through the power output polar plate, the insulating plate 5 and the end clamping plate assembly 7, stretches into the inner cavity of the battery management box and is tightly connected through nuts, a positive pole post 2 and a negative pole post 4 are arranged on the power output polar plate, the insulating plate 5, the end clamping plate assembly 7 and the battery management box, concentric positive pole output through holes 11 and negative pole output through holes 12 of battery electrodes are formed in the battery management box, the positive pole post 2 and the negative pole post 4 sequentially penetrate through the insulating plate 5 and the end clamping plate assembly 7, and the positive pole output through holes 11 and the negative pole output through holes 12 of the battery management box, and then stretch into the inner cavity of the battery management box to be connected with the total power output terminal, and the total power output terminal outwards penetrates through the battery management box and then is connected with a lead-out end wire.
The power output polar plate comprises a total positive aluminum plate 1 and a total negative aluminum plate 3, wherein the total positive aluminum plate 1 and the total negative aluminum plate 3 are clamped between the power output end of the power battery and the insulating plate 5 side by side, the total positive aluminum plate 1 is sleeved on the left screw 8, the total negative aluminum plate 3 is sleeved on the right screw 9, the bottom of the total positive aluminum plate 1 is provided with a positive pole 2, and the bottom of the total negative aluminum plate 3 is provided with a negative pole 4.
The bottom of the insulating plate 5 is provided with two sleeves 6, and the positive pole post 2 and the negative pole post 4 respectively pass through the corresponding sleeves 6 and then pass through the end clamping plate assembly 7, the positive pole output through hole 11 and the negative pole output through hole 12 on the battery management box 5.
Referring to fig. 3, the battery management box comprises a management box bottom shell 13 and a management box upper cover 14, wherein the outer side of the management box bottom shell 13 is open, the outer side opening is covered and sealed by the management box upper cover 14 and is fastened by a tapping screw 15, and an inner cavity of the battery management box is formed by enclosing the management box bottom shell 13 and the management box upper cover 14; the end clamping plate assembly 7 is a shell with an open outer side, and the battery management box is embedded in the end clamping plate assembly 7.
The total power supply output terminal comprises a total power supply positive electrode output terminal 16 and a total power supply negative electrode output terminal 17 which are fixedly arranged on the management box bottom shell 13, wherein the positive electrode post 2 stretches into the inner cavity of the battery management box and then is connected with the total power supply positive electrode output terminal 16 through a positive electrode management element 18, the negative electrode post 4 stretches into the inner cavity of the battery management box and then is connected with the total power supply negative electrode output terminal 17 through a negative electrode current detection element 19, and the total power supply positive electrode output terminal 16 and the total power supply negative electrode output terminal 17 respectively penetrate through the battery management box upper cover 14 from inside to outside and then are connected with a positive electrode lead-out end line 20 and a negative electrode lead-out end line 21; the arrangement of the positive electrode management element 18 and the negative electrode current detection element 19 can increase the whole battery output structure and can have the current management and detection functions so as to meet the use requirements of the power battery.
Referring to fig. 4, the upper end of the positive management element 18 is sleeved on the positive output terminal 16 of the main power supply, the upper end of the negative current detection element 19 is sleeved on the negative output terminal 17 of the main power supply, and the lower end of the positive management element 18 and the lower end of the negative current detection element 19 are respectively and fixedly connected with the positive pole 2 and the negative pole 4 through bolts 23.
The positive current and the negative current of the power output end of the power battery respectively flow into the inner cavity of the battery management box through the positive pole post 2 and the negative pole post 4 of the total positive aluminum plate 1 and the total negative aluminum plate 3, respectively flow through the positive pole management element 18 and the negative pole current detection element 19, and then are output through the positive pole output terminal 16 and the negative pole output terminal 17 of the total power supply.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a power battery's power output structure, power battery is established ties and is connected into wholly through screw rod fastening by a plurality of power battery modules, its characterized in that: the battery management box is characterized by comprising a power output polar plate, an insulating plate and an end clamping plate assembly, wherein a battery management box is embedded in the end clamping plate assembly, a total power output terminal is arranged in an inner cavity of the battery management box, an extension section is arranged on one side of a power output end of a power battery by a screw rod, the extension section sequentially penetrates through the power output polar plate, the insulating plate and the end clamping plate assembly, stretches into the inner cavity of the battery management box and is tightly connected through nuts, a positive pole post and a negative pole post are arranged on the power output polar plate, the insulating plate, the end clamping plate assembly and the battery management box, concentric positive pole output through holes and negative pole output through holes of battery electrodes are formed in the insulating plate, the end clamping plate assembly and the battery management box, the positive pole output through holes and the negative pole output through holes of the battery management box sequentially penetrate through the inner cavity of the battery management box and are connected with the total power output terminal, and the total power output terminal outwards penetrates through the battery management box and then is connected with an outgoing terminal wire.
2. The power output structure of a power battery according to claim 1, wherein: the power output polar plate comprises a total positive aluminum plate and a total negative aluminum plate, wherein the total positive aluminum plate and the total negative aluminum plate are clamped between the power output end of the power battery and the insulating plate side by side, the total positive aluminum plate is sleeved on a screw rod positioned on the right side, the total negative aluminum plate is sleeved on a screw rod positioned on the left side, the bottom of the total positive aluminum plate is provided with a positive pole, and the bottom of the total negative aluminum plate is provided with a negative pole.
3. The power output structure of a power battery according to claim 2, characterized in that: the bottom of the insulating plate is provided with two sleeves, and the positive pole post and the negative pole post respectively pass through the corresponding sleeves and then respectively pass through the positive pole output via hole and the negative pole output via hole on the end clamping plate assembly and the battery management box in sequence.
4. A power output structure of a power battery according to claim 3, characterized in that: the total power supply output terminal comprises a total power supply positive electrode output terminal and a total power supply negative electrode output terminal, the positive electrode post stretches into the inner cavity of the battery management box and then is connected with the total power supply positive electrode output terminal through a positive electrode management element, the negative electrode post stretches into the inner cavity of the battery management box and then is connected with the total power supply negative electrode output terminal through a negative electrode current detection element, and the total power supply positive electrode output terminal and the total power supply negative electrode output terminal respectively penetrate through the battery management box from inside to outside and then are connected with a positive electrode lead-out end wire and a negative electrode lead-out end wire.
5. The power output structure of a power battery according to claim 4, wherein: the upper end of the positive management element is sleeved on the positive output terminal of the total power supply, the upper end of the negative current detection element is sleeved on the negative output terminal of the total power supply, and the lower ends of the positive management element and the negative current detection element are respectively and tightly connected with the positive pole post and the negative pole post through bolts.
6. The power output structure of a power battery according to any one of claims 1 to 5, characterized in that: the end clamping plate assembly is a shell with an open outer side, and the battery management box is embedded in the end clamping plate assembly.
7. The power output structure of a power battery according to claim 6, wherein: the battery management box comprises a management box bottom shell and a management box upper cover, wherein the outer side of the management box bottom shell is open, the outer side of the management box bottom shell is covered and sealed by the management box upper cover and is fastened by self-tapping screws, and an inner cavity of the battery management box is formed by enclosing between the management box bottom shell and the management box upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320670.XA CN108321317B (en) | 2018-04-09 | 2018-04-09 | Power battery's power output structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810320670.XA CN108321317B (en) | 2018-04-09 | 2018-04-09 | Power battery's power output structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108321317A CN108321317A (en) | 2018-07-24 |
| CN108321317B true CN108321317B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810320670.XA Active CN108321317B (en) | 2018-04-09 | 2018-04-09 | Power battery's power output structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108321317B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140021889A (en) * | 2012-08-13 | 2014-02-21 | 현대자동차주식회사 | Battery tray for vehicle |
| CN208014757U (en) * | 2018-04-09 | 2018-10-26 | 捷星新能源科技（苏州）有限公司 | A kind of power supply export structure of power battery |
-
2018
- 2018-04-09 CN CN201810320670.XA patent/CN108321317B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140021889A (en) * | 2012-08-13 | 2014-02-21 | 현대자동차주식회사 | Battery tray for vehicle |
| CN208014757U (en) * | 2018-04-09 | 2018-10-26 | 捷星新能源科技（苏州）有限公司 | A kind of power supply export structure of power battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108321317A (en) | 2018-07-24 |
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