CN219832949U - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN219832949U CN219832949U CN202320778625.5U CN202320778625U CN219832949U CN 219832949 U CN219832949 U CN 219832949U CN 202320778625 U CN202320778625 U CN 202320778625U CN 219832949 U CN219832949 U CN 219832949U
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- Prior art keywords
- interface
- conductive
- conductive bar
- section
- battery pack
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- 239000000428 dust Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack, which can realize that the negative terminals of two interfaces are connected in series through a fourth conductive bar, and then the third conductive bar is connected with the fourth conductive bar, so that the third conductive bar can be electrically connected with the negative terminals of the two interfaces at the same time.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack.
Background
The battery pack may generally include: the battery pack comprises a box body, a battery positioned in the box body, an alternating current charging interface and a direct current charging interface positioned on the side wall of the box body, and a plurality of conductive bars arranged in the box body, wherein the alternating current charging interface and the direct current charging interface are respectively provided with an anode terminal and a cathode terminal, the battery is provided with an anode and a cathode, the anode of the battery is connected with the anode terminal in the alternating current charging interface, the anode of the battery is connected with the cathode terminal in the direct current charging interface, the cathode of the battery is connected with the cathode terminal in the alternating current charging interface, and the cathode of the battery is connected with the cathode terminal in the direct current charging interface through the conductive bars.
Disclosure of Invention
The embodiment of the utility model provides a battery pack, which is used for reducing the manufacturing cost of the battery pack.
Based on this, an embodiment of the present utility model provides a battery pack including:
the box body is provided with a first interface and a second interface, and the first interface and the second interface are provided with a positive terminal and a negative terminal;
the battery, the first conductive bar, the second conductive bar, the third conductive bar and the fourth conductive bar are positioned in the box body, the first conductive bar is connected with the positive electrode terminal in the first interface and the positive electrode of the battery, the second conductive bar is connected with the positive electrode terminal in the second interface and the positive electrode of the battery, and one end of the third conductive bar is connected with the negative electrode of the battery; for the other end of the third conductive row: and the negative terminal in the first interface and the negative terminal in the second interface are respectively connected through the fourth conductive row, or the negative terminal in the first interface and the negative terminal in the second interface are respectively connected through the fourth conductive row and the fourth conductive row.
The utility model has the following beneficial effects:
according to the battery pack provided by the embodiment of the utility model, the negative terminals of the two interfaces can be connected in series through the fourth conductive bar, and then the third conductive bar is connected with the fourth conductive bar, so that the third conductive bar can be electrically connected with the negative terminals of the two interfaces at the same time.
Drawings
Fig. 1 is a top view of a battery pack according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of a portion of a battery pack according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of a portion of another battery pack according to an embodiment of the present utility model;
FIG. 4 is an enlarged schematic view of a portion of a third conductive trace and a fourth conductive trace provided in an embodiment of the utility model;
FIG. 5 is a schematic structural view of a bracket according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of an upper cover according to an embodiment of the present utility model.
Detailed Description
A specific embodiment of a battery pack according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
An embodiment of the present utility model provides a battery pack, which is shown in fig. 1 to 6, wherein, for convenience in clearly showing the respective structures, a part of the conductive bars, the positive electrode terminal, and the negative electrode terminal are omitted in fig. 1, the battery is omitted in fig. 2 and 3, only the third conductive bar and a part of the fourth conductive bar are shown in fig. 4, and the battery, the case, and the second conductive bar are omitted in fig. 5 and 6.
As shown in fig. 1 to 6, the battery pack may include:
a case 10, the case 10 being provided with a first interface 11 and a second interface 12, the first interface 11 and the second interface 12 each having a positive terminal (e.g., 11a and 12 a) and a negative terminal (e.g., 11b and 12 b);
and the battery 20, the first conductive bar 31, the second conductive bar 32, the third conductive bar 33 and the fourth conductive bar 34 are positioned in the box 10, the first conductive bar 31 is connected with the positive terminal 11a in the first interface 11 and the positive electrode of the battery 20, the second conductive bar 32 is connected with the positive terminal 12a in the second interface 12 and the positive electrode of the battery 20, and one end of the third conductive bar 33 is connected with the negative electrode of the battery 20. For the other end of the third conductive row 33: is connected to the negative terminal 11b in the first interface 11 and the negative terminal 12b in the second interface 12, respectively, by a fourth conductive bar 34, as shown in fig. 3; or by itself and the fourth conductive strip 34 respectively with the negative terminal 11b in the first interface 11 and the negative terminal 12b in the second interface 12, as shown in fig. 2.
Therefore, the negative terminals of the two interfaces can be connected in series through the fourth conductive bar, and then the third conductive bar is connected with the fourth conductive bar, so that the third conductive bar can be electrically connected with the negative terminals of the two interfaces at the same time, when the third conductive bar is connected with the negative electrode of the battery, the first conductive bar and the second conductive bar are combined, and under the condition that the battery is connected with the two interfaces, the number of the conductive bars directly connected with the battery is three, the number of the conductive bars directly connected with the battery and the length of the conductive bars are reduced, and therefore, the manufacturing cost of the battery pack can be reduced.
In some embodiments, the first port 11 and the second port 12 may be provided on the same side wall of the case 10, as shown in fig. 1; or the first interface 11 and the second interface 12 are respectively positioned on different side walls of the box body 10, which are not shown; the relative arrangement position between the first interface 11 and the second interface 12 can be set according to the actual situation, and is not limited herein.
The first interface can be a direct current charging interface, and the second interface is an alternating current charging interface; alternatively, one interface may be an ac charging interface and the second interface a dc charging interface; the design may be specifically performed according to actual needs, and is not limited herein.
Of course, in some embodiments, a discharging interface may be further disposed on the side wall of the case, where the discharging interface is disposed opposite to the first interface and the second interface, and a connection manner between the discharging interface and the positive electrode and the negative electrode of the battery may be a manner well known to those skilled in the art, and will not be described in detail herein.
In some embodiments, in the configuration shown in fig. 2 and 4, one end of the third conductive bar 33 is connected to the negative electrode of the battery, and the other end is connected to the fourth conductive bar 34 and the negative electrode terminal 11b of the first interface 11, respectively, and the fourth conductive bar 34 is also connected to the negative electrode terminal 12b in the second interface 12, so that the third conductive bar 33 is connected to the negative electrode terminal 11b in the first interface 11 and the negative electrode terminal 12b in the second interface 12 by itself and the fourth conductive bar 34, respectively. Based on this, the other end of the third conductive line 33 may include a first segment d1 and a second segment d2 connected, the first segment d1 being connected to the negative terminal 11b in the first interface 11, the second segment d2 being connected to the fourth conductive line 34, wherein the first segment d1 is provided between the second segment d2 and the second interface 12. The second section d2 can thus be regarded as an extension of the first section d1, by means of which the third conductive track 33 can be connected to the fourth conductive track 34.
In addition, as shown in fig. 2, the bottom plate (not shown in the drawing) of the box 10 may be located at the lower side of the other end of the third conductive row 33, and the fourth conductive row 34 is located at the upper side of the other end of the third conductive row 33, so that the fourth conductive row 34 is located at the side of the other end of the third conductive row 33, which faces away from the bottom plate, to realize that the fourth conductive row 34 is stacked with the third conductive row 33, and at this time, in the direction perpendicular to the bottom plate (i.e., the y direction), the fourth conductive row 34 may shield the first section d1, so that the orthographic projection of the fourth conductive row 34 onto the bottom plate covers the orthographic projection of the first section d1 onto the bottom plate. Thus, the fourth conductive bar 34 can prevent the metal scraps from falling on the first section d1 to cause short circuit, and meanwhile, the dust cover arranged on the first section d1 can be omitted, so that the manufacturing cost is saved, meanwhile, the structure in the box 10 is prevented from being too complex and crowded, and more space is provided for the arrangement of each conductive bar. In addition, since the space in the case 10 is limited, the fourth conductive bar 34 and the third conductive bar 33 are stacked, so that the remaining space in the case 10 can be effectively utilized, and the space utilization rate can be improved.
Also, for the fourth conductive row 34, as shown in fig. 4, in order to facilitate connection with the second section d2 of the third conductive row 33, the fourth conductive row 34 may include: the third section d3, the fourth section d4, and the fifth section d5 connecting the third section d3 and the fourth section d4, the third section d3 being connected to the second section d2 of the third conductive row 33, the fourth section d4 being connected to the negative terminal in the second interface (not shown in the figure), the extending direction (e.g., w direction) of the fifth section d5 intersecting the extending direction (e.g., x direction) of the third section d3 and the extending direction (e.g., x direction) of the fourth section d4 such that there is a certain gap in the y direction (i.e., a direction perpendicular to the bottom plate) between the fourth section d4 and the first section d1 of the third conductive row 33, in which a certain operation space can be provided for the connection operation of the first section d1 to the negative terminal in the first interface (not shown in the figure).
It should be understood that in fig. 4, the third conductive row is illustrated separately from the fourth conductive row for the sake of clarity of illustration of the respective structures, but in practice the third conductive row is connected to the fourth conductive row, which is not shown in fig. 4.
In the structure shown in fig. 3, one end of the third conductive bar 33 is connected to the negative electrode of the battery, the other end is connected to the fourth conductive bar 34, and the fourth conductive bar 34 is also connected to the negative electrode terminal 11b in the first interface 11 and the negative electrode terminal 12b in the second interface 12, respectively, so that the third conductive bar 33 can be connected to the negative electrode terminal 11b in the first interface 11 and the negative electrode terminal 12b in the second interface 12, respectively, through the fourth conductive bar 34. In addition, in the direction perpendicular to the bottom plate (such as the y direction), the second connection portion n2 connected to the negative terminal 11b in the first interface 11 by the fourth conductive bar 34 may be stacked with the third conductive bar 33, where the second connection portion n2 may be disposed on a side of the third conductive bar 33 facing away from the bottom plate, as shown in fig. 3, and at this time, a dust cover may be disposed above the second connection portion n2 (i.e., on a side of the fourth conductive bar 34 facing away from the bottom plate), so as to avoid the metal chip falling on the second connection portion n2 and causing a short circuit, thereby improving the safety and reliability of the battery pack. Or, the second connection portion n2 may be further disposed on a side of the third conductive strip 33 facing the bottom plate, which is not shown, so that the third conductive strip 33 can shield the second connection portion n2, thereby omitting the arrangement of a dust cover, simplifying the structure of the battery pack, and reducing the manufacturing cost of the battery pack.
It should be understood that, for any of the conductive bars, the surface of the other position than the second connection portion n2 is provided with an insulating layer, so that it is not necessary to provide a dust cover at the other position than the second connection portion n 2.
In some embodiments, as shown in fig. 2, for the fourth conductive strip 34 and the first conductive strip 31, in a direction perpendicular to the bottom plate (such as the y direction), the fourth conductive strip 34 is stacked on the first conductive strip 31, and the fourth conductive strip 34 is disposed on a side of the first conductive strip 31 away from the bottom plate and the first connection portion n1 of the negative terminal 11b in the first interface 11, where the fourth conductive strip 34 can shield the first connection portion n1, so that the orthographic projection of the fourth conductive strip 34 onto the bottom plate covers the orthographic projection of the first connection portion n1 onto the bottom plate, so that the fourth conductive strip 34 can prevent metal scraps from falling onto the first connection portion n1 to cause a short circuit, and meanwhile, a dust cover disposed above the first connection portion n1 can be omitted, so that the manufacturing cost is saved, the structure in the box is prevented from being too complex and crowded, and more space is provided for disposing the conductive strips. In addition, because the space in the box is limited, the fourth conductive row 34 and the first conductive row 31 are stacked, so that the residual space in the box can be effectively utilized, and the space utilization rate is improved.
In some embodiments, as illustrated in fig. 5, the battery pack may further include: the support 40 in the box body is arranged, the second section d2 of the third conducting bar and the fourth conducting bar 34 are both fixed on the support 40, so that the support 40 can support the second section d2 and the fourth conducting bar 34, the suspension of the second section d2 and the fourth conducting bar 34 to form a cantilever beam is avoided, fatigue and even tearing are caused by overlong torque when the box body vibrates, and the safety and reliability of the battery pack are improved.
In addition, the support 40 may be provided with a screw 41, the screw 41 may be fixed on the support 40 in advance, the second section d2 and the fourth conductive bar 34 may have through holes (not shown in the figure), the through holes may pass through the screw 41 during installation, and then the nuts 42 may be fixed on the screw 41, so that the second section d2 and the fourth conductive bar 34 may be fixed on the support 40, thereby achieving effective fixation of the second section d2, the fourth conductive bar 34, and the support 40.
As shown in fig. 5, the bracket 40 may further be provided with a fixing portion 43, and the wire harness 60 connected to the negative electrode terminal in the first interface may be fixed by the fixing portion 43, wherein the wire harness 60 may be, but not limited to, a low-voltage wire harness, and may be used to collect information such as voltage and temperature of the battery. Like this, can avoid the pencil 60 shake in the box in disorder when the box takes place to vibrate, and then avoid frequently rocking and cause the junction of pencil 60 and the negative terminal in the first interface to take place fatigue fracture to avoid the signal inaccuracy that gathers through pencil 60.
In addition, the bracket may be directly fixed to the base plate. Or when the fixing beam positioned on the bottom plate is arranged in the box body, the bracket can be fixed on the fixing beam, and the bracket is fixed through the fixing beam. And when the support is fixed, the support can be fixed in a screw, a buckle or a slot and the like mode, so that the support can be conveniently installed and detached.
In some embodiments, as shown in fig. 6, an upper cover 50 may be disposed above the support 40, that is, an upper cover 50 may be disposed on a side of the support 40 away from the bottom plate, through which upper cover 50 a second section (not shown in the drawing) may be covered, and further, a connection portion between the second section and the fourth conductive bar 34 may be covered, so that metal scraps may be prevented from falling on a connection portion between the second section and the fourth conductive bar 34 to cause a short circuit, thereby improving reliability and safety of the battery pack.
Also, the upper cover 50 may be provided as a sliding cover, which may be slidably coupled with the bracket 40, and the sliding direction may be the x-direction and slide in from the left side in the direction indicated by the arrow in fig. 6. Thus, when the space of the position where the bracket 40 is located is smaller, the upper cover 50 can still be opened and closed, so that the connection part of the second section and the fourth conductive row 34 can be covered, and meanwhile, the maintenance and the disassembly can be facilitated, and the operation efficiency can be improved. Of course, the upper cover 50 may be a flip cover in addition to a slide cover, not shown, and a buckle is provided on the flip cover and/or the bracket 40 to facilitate fixing of the upper cover 50.
In some embodiments, each conductive strip may be made of a conductive metal material, such as, but not limited to, metallic copper, metallic aluminum, and the like. The bracket 40 and the upper cover 50 may be made of an insulating hard material to achieve the supporting and shielding effects.
In some embodiments, as shown in fig. 1, the battery pack may further include other components besides the above-mentioned structure, for example, but not limited to, a battery management system, a high-voltage distribution box, etc. disposed in the box, and may be specifically configured according to actual needs, which is not limited herein.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A battery pack, comprising:
the box body is provided with a first interface and a second interface, and the first interface and the second interface are provided with a positive terminal and a negative terminal;
the battery, the first conductive bar, the second conductive bar, the third conductive bar and the fourth conductive bar are positioned in the box body, the first conductive bar is electrically connected with the positive electrode terminal in the first interface and the positive electrode of the battery, the second conductive bar is electrically connected with the positive electrode terminal in the second interface and the positive electrode of the battery, and one end of the third conductive bar is electrically connected with the negative electrode of the battery; for the other end of the third conductive row: and the negative terminal in the first interface and the negative terminal in the second interface are respectively connected through the fourth conductive row, or the negative terminal in the first interface and the negative terminal in the second interface are respectively connected through the fourth conductive row and the fourth conductive row.
2. The battery pack of claim 1, wherein the other end of the third conductive bar is connected to the negative terminal in the first interface, and the fourth conductive bar is connected to the negative terminal in the second interface and the other end of the third conductive bar, respectively;
the other end of the third conducting bar comprises a first section and a second section which are connected, the first section is connected with the negative terminal in the first interface, the second section is connected with the fourth conducting bar, and the first section is arranged between the second section and the second interface.
3. The battery pack of claim 1, wherein the fourth conductive bar is located on a side of the other end of the third conductive bar facing away from the bottom plate of the case;
the other end of the third conductive bar is connected with the negative terminal in the first interface, and the fourth conductive bar is respectively connected with the negative terminal in the second interface and the other end of the third conductive bar; the other end of the third conductive bar comprises a first section connected with the negative terminal in the first interface, and the orthographic projection of the fourth conductive bar onto the bottom plate covers the orthographic projection of the first section onto the bottom plate.
4. The battery pack of claim 1, wherein a first conductive strip has a first connection portion connected to the positive terminal in the first interface, the fourth conductive strip is located on a side of the first connection portion remote from the bottom plate of the case, and an orthographic projection of the fourth conductive strip onto the bottom plate covers an orthographic projection of the first connection portion onto the bottom plate.
5. The battery pack of any one of claims 1-4, wherein a second segment in the other end of the third conductive row is connected to the fourth conductive row;
the battery pack also includes a bracket for supporting the second section, the second section and the fourth conductive strip being secured to the bracket.
6. The battery pack of claim 5, further comprising an upper cover on a side of the bracket facing away from the bottom plate of the housing, the upper cover for covering the second section.
7. The battery pack of claim 6, wherein the upper cover is a sliding cover that is slidably coupled to the bracket.
8. The battery pack of claim 5, wherein the bracket is provided with a screw through which the through holes in the second section and the through holes in the fourth conductive row pass, and the second section and the fourth conductive row are secured to the screw by nuts.
9. The battery pack according to claim 5, wherein the bracket is provided with a fixing portion for fixing a wire harness connected to the negative terminal.
10. The battery pack of claim 5, wherein the bracket is fixed to the bottom plate of the case;
or, the battery pack further comprises a fixing beam positioned above the bottom plate, and the bracket is fixed on the fixing beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320778625.5U CN219832949U (en) | 2023-04-11 | 2023-04-11 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320778625.5U CN219832949U (en) | 2023-04-11 | 2023-04-11 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219832949U true CN219832949U (en) | 2023-10-13 |
Family
ID=88245377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320778625.5U Active CN219832949U (en) | 2023-04-11 | 2023-04-11 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219832949U (en) |
-
2023
- 2023-04-11 CN CN202320778625.5U patent/CN219832949U/en active Active
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| GR01 | Patent grant |