CN218385670U - Battery pack and battery pack - Google Patents
Battery pack and battery pack Download PDFInfo
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- CN218385670U CN218385670U CN202222478498.5U CN202222478498U CN218385670U CN 218385670 U CN218385670 U CN 218385670U CN 202222478498 U CN202222478498 U CN 202222478498U CN 218385670 U CN218385670 U CN 218385670U
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- battery
- board
- signal acquisition
- battery pack
- wiring harness
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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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Abstract
The application provides a group battery and battery package, this group battery includes: a battery and a wiring harness board assembly; the wire harness plate component comprises a wire harness plate and a bus bar arranged on the wire harness plate; the bus bar is electrically connected with the pole of the battery; the wiring harness board assembly further comprises a signal acquisition board which is arranged on the wiring harness board and used for acquiring battery signals; the signal acquisition board is positioned between the wiring harness board and the battery. In above-mentioned technical scheme, through adopting the one side of setting up the signal acquisition board towards the battery in the pencil board subassembly, thereby accessible pencil board protection signal acquisition board, on the other hand, through setting up the one side towards the battery with the signal acquisition board on pencil board subassembly, also can make the signal acquisition board be closer to the battery, can directly acquire the temperature of battery case, improve the degree of accuracy that detects, need not punch through at the pencil board, just can make the signal acquisition board pass the temperature that the battery case was gathered in the trompil, the structural strength of pencil board has been improved.
Description
Technical Field
The present application relates to the field of battery technology, and in particular, to a battery pack and a battery pack.
Background
In order to ensure the safety of the battery in the battery pack, some signals of the battery need to be acquired, and currently, a signal acquisition board is used as a component for monitoring the temperature of the battery so as to monitor the temperature of the battery in real time. The signal acquisition board is used as a component for monitoring the temperature of the battery and plays an important role in the safety of the battery in the using process. However, when the current signal acquisition board is arranged, the safety of the signal acquisition board is not considered, and when the battery pack is impacted by external force, the signal acquisition board is easy to damage, so that the state of the battery cannot be monitored.
SUMMERY OF THE UTILITY MODEL
The application provides a group battery and battery package for improve the security of signal acquisition board.
In a first aspect, there is provided a battery pack including: a battery and a wiring harness board assembly;
the wire harness plate assembly comprises a wire harness plate and a bus bar arranged on the wire harness plate; the bus bar is electrically connected with the pole of the battery;
the wiring harness board assembly further comprises a signal acquisition board which is arranged on the wiring harness board and used for acquiring battery signals; the signal acquisition board is positioned between the wiring harness board and the battery.
In above-mentioned technical scheme, through adopting the one side of setting up the signal acquisition board towards the battery in the pencil board subassembly, thereby accessible pencil board protection signal acquisition board, on the other hand, through the one side towards the battery with the signal acquisition board setting on the pencil board subassembly, also can make the signal acquisition board more be close to the battery, can directly acquire the temperature of battery case, improve the degree of accuracy that detects, need not punch through at the pencil board, just can make the signal acquisition board pass the temperature that the battery case was acquired in the trompil, the structural strength of pencil board has been improved.
In a second aspect, a battery pack is provided, which includes a case and the battery pack of any one of the above items disposed in the case.
In above-mentioned technical scheme, through adopting the one side of setting up the signal acquisition board towards the battery in the pencil board subassembly, thereby accessible pencil board protection signal acquisition board, on the other hand, through the one side towards the battery with the signal acquisition board setting on the pencil board subassembly, also can make the signal acquisition board more be close to the battery, can directly acquire the temperature of battery case, improve the degree of accuracy that detects, need not punch through at the pencil board, just can make the signal acquisition board pass the temperature that the battery case was acquired in the trompil, the structural strength of pencil board has been improved.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a battery pack provided in an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a battery and a wiring harness board according to an embodiment of the present disclosure;
fig. 4 is a schematic connection diagram of a signal collecting board and a bus bar according to an embodiment of the present disclosure.
Reference numerals:
100-box 200-battery pack 210-battery 211-pole
220-harness board assembly 221-signal acquisition board 2211-main circuit board
2212 temperature collecting element 2213 pressure collecting element 222 wire harness plate
2221-groove 223-buffer layer 224-bus 2241-non-pole welding area
2242-weld zone
Detailed Description
The present application is described in further detail below with reference to the figures and examples. The features and advantages of the present application will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, the technical features related to the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
To facilitate understanding of the battery pack provided in the embodiments of the present application, an application scenario of the battery pack is first described. The battery pack provided by the embodiment of the application can be used as power equipment and applied to electric vehicles, such as electric automobiles, electric buses, electric trucks and other different vehicles. When the battery pack is applied, the temperature greatly affects the performance of the battery. Therefore, the existing battery pack adopts the signal acquisition board to monitor the temperature of the battery, but the safety of the current signal acquisition board is poor, and accidental damage is easy to occur. Therefore, the embodiment of the application provides the battery pack, which is used for improving the safety of a signal acquisition board in the battery pack and improving the stability of battery monitoring. The details are described below with reference to specific drawings and examples.
Referring to fig. 1, fig. 1 shows a schematic structural view of a battery pack. In order to facilitate understanding of the battery pack 200 provided in the embodiment of the present application, a structure in which the battery pack 200 is applied to a battery pack will be described first. The battery pack 200 includes a battery 210 and a harness board assembly 220, and the battery 210 and the harness board assembly 220 are positioned and fixed in the case 100 when assembled in the case 100.
Referring to fig. 2, a schematic structural diagram of a battery pack provided in an embodiment of the present application is illustrated. The battery pack 200 provided in the embodiment of the present application mainly includes: the battery pack includes a battery 210 and a harness board assembly 220, wherein the harness board assembly 220 includes bus bars for connecting the battery 210 in series or in parallel to form a circuit. In particular connection, the poles of the battery 210 are electrically connected with the busbars of the wiring harness board assembly 220.
The number of the batteries 210 may be at least two, such as two, three, etc. different numbers. When the number of the cells 210 is at least two, the cells 210 may be arranged in an array, such as an n × m array (n, m are positive integers greater than or equal to 1).
When the battery 210 is placed in the case 100 of the battery pack, the battery 210 can be placed in different ways, for example, when the battery 210 is placed right, the pole of the battery 210 is located on the top surface of the battery 210, and the bottom surface of the battery 210 faces the bottom plate of the case 100; when the battery 210 is inverted, the pole of the battery 210 is located on the bottom surface of the battery 210, and the pole faces the bottom plate of the case 100. Correspondingly, the position of the wiring harness board assembly 220 is also changed according to the placement mode of the battery 210, when the battery 210 is in the right position, the wiring harness board assembly 220 is located above the battery 210 along the height direction of the battery 210, that is, the wiring harness board assembly 220 is the surface deviating from the box 100 with the battery 210; when the battery 210 is inverted, the harness board assembly 220 is located below the battery 210 in the height direction of the battery 210, that is, between the battery 210 and the bottom plate of the case 100.
It should be understood that the battery 210 is attached to the harness board assembly 220 in the same manner whether the battery 210 is placed upright or upside down, and the battery 210 is described below as an example.
When the battery 210 is inverted, the poles of the battery 210 protrude outward from the bottom surface of the battery 210, and the harness board assembly 220 includes a harness board 222 and a plurality of bus bars disposed on the harness board 222. The poles of each battery 210 are connected to a bus bar, and the plurality of bus bars connect the plurality of batteries 210 in series or in parallel to form a circuit. In addition, since the pole protrudes outward from the bottom surface of the battery 210, when the pole is connected to the bus bar, a gap exists between the harness board assembly 220 and the battery 210, which is a gap between the harness board 222 and the bottom surface of the battery 210.
The battery 210 generates heat when it is operated, and the heat generated from the battery 210 is a major factor affecting the operation of the battery 210 when the battery 210 is stacked. Therefore, the temperature of the battery 210 needs to be monitored at all times. To this end, the wire harness board assembly 220 further includes a signal collecting board 221, and the signal collecting board 221 is used to collect a signal of the battery 210 to monitor the state of the battery 210. The signal collection board 221 may be a Flexible Printed Circuit (FPC), and it should be understood that the signal collection board 221 may also be other Flexible structures having a signal transmission function. For example, the signal collection board 221 may collect a case temperature of the battery 210 to monitor an operating temperature of the battery 210.
Referring also to fig. 3, fig. 3 shows a schematic diagram of the mating of the wiring harness board assembly with the battery. When the signal collection board 221 is specifically provided, the signal collection board 221 is provided between the harness board 222 and the battery 210. When the signal collection board 221 is disposed between the wiring harness board 222 and the battery 210, the signal collection board 221 can be made closer to the battery 210, and the influence of other heat generating devices (such as a bus bar) on the temperature of the battery 210 can be reduced. In addition, the signal collecting board 221 is in the gap between the harness board 222 and the battery 210, so that the signal collecting board 221 can be hidden in the battery pack 200, and the harness board 222 can protect the signal collecting board 221. Compared with the mode of exposing the signal acquisition board 221 to the outside of the battery pack 200, the protection of the signal acquisition board 221 can be improved. Especially, when the box 100 causes the bottom plate to deform during vibration or ball impact, an external force is applied to the wire harness board assembly 220, so that the condition that the signal acquisition board 221 is broken by extruding the signal acquisition board 221 is greatly reduced, the safety of the signal acquisition board 221 is improved, and the stability of monitoring the temperature of the battery 210 is further improved.
As an alternative embodiment, the signal collection board 221 is fixed to the harness board assembly 220. Such as a signal acquisition board 221, is secured to the side of the harness board assembly 220 facing the bottom surface of the battery 210. Illustratively, when the signal collection board 221 is disposed, one end of the signal collection board 221 is fixedly connected to the wire harness board assembly 220, and the other end (monitoring end) is located in the gap between the wire harness board assembly 220 and the battery 210.
When the signal collecting plate 221 is disposed on the harness plate assembly 220, the signal collecting plate 221 is located in a gap between two poles 211 of the battery 210, so that the space of the gap between the harness plate assembly 220 and the battery 210 is fully utilized, and interference between the disposed signal collecting plate 221 and the poles 211 of the battery 210 is avoided. In addition, the signal acquisition plate 221 is spaced from the pole 211 of the battery 210 by a certain distance, so that the insulation between the poles 211 of the battery 210 is ensured.
As an optional scheme, the signal collecting board 221 is further configured to collect the voltage of the bus bar 224; and the signal collecting board 221 is connected to the side of the bus bar 224 facing the battery. When the scheme is adopted, the position of the bus bar 224 collected by the signal collecting plate 221 is located on one side of the bus bar 224 close to the battery 210, so that the reliability of the signal collecting plate 221 in collecting the signals of the bus bar 224 can be improved, and the external influence is reduced. When the signal collecting plate 221 is connected with the bus bar 224, the signal collecting plate 221 is connected with a non-pole welding area on the bus bar 224, so that the connection between the bus bar 224 and the battery 210 is prevented from being influenced, and the welding quality is prevented from being influenced.
Referring also to fig. 4, the signal collecting board 221 may adopt different devices for collecting the temperature of the battery and the voltage of the bus bar 224. Specifically, the signal acquisition board 221 may include a temperature acquisition element 2212 and a pressure acquisition element 2213; the temperature sensing element 2212 is used for sensing the temperature of the battery, and the pressure sensing element 2213 is used for sensing the voltage of the bus bar 224. The following description will be made separately.
The temperature collecting element 2212 is used for collecting the temperature of the battery. In the specific acquisition, a direct acquisition mode or an indirect acquisition mode can be adopted. When the direct collection mode is adopted, the temperature collection element 2212 collects the temperature of the battery. At this time, the temperature sensing member 2212 is directly connected to the case of the battery to sense the temperature of the battery. When the method is adopted, the acquired temperature of the battery can be more accurate, and the influence of other devices is avoided. When the indirect collection method is adopted, the temperature collecting element 2212 collects the temperature of the bus bar 224 to collect the temperature of the battery by collecting the temperature of the bus bar 224. When the bus bar 224 is connected with the battery, the bus bar is directly connected with the pole 211 of the battery, so the temperature of the collecting bus bar 224 can reflect the temperature of the battery.
As an alternative, the temperature sensing element 2212 provided in the embodiments of the present application may be a different device, such as a thermistor or other temperature sensing element 2212, and is not limited herein.
The temperature collecting element 2212 is located on one side of the wire harness board 222 facing the battery, and therefore can be directly connected with the battery case, and compared with the arrangement mode that the signal collecting board 221 in the prior art is arranged on one side of the wire harness board 222 facing away from the battery, holes need to be punched in the wire harness board 222, and then the case temperature of the battery can be directly collected. The arrangement mode of the signal acquisition board 221 provided by the embodiment of the application does not need to punch the wiring harness board 222, so that the structural strength of the wiring harness board 222 is improved, and the strength of protecting the signal acquisition board 221 is further improved.
The voltage collecting element 2213 is used for collecting the voltage of the bus 224. In particular, the biasing element 2213 is connected to the side of the busbar 224 facing the battery. Specifically, the connection position between the voltage collecting element 2213 and the bus bar 224 is located on one side of the bus bar 224 close to the battery 210, so that the reliability of the signal collecting board 221 for collecting the signal of the bus bar 224 can be improved, and the external influence can be reduced.
In particular, the biasing member 2213 is directly soldered to the bus 224, thereby directly connecting the bus 224 to the voltage. In specific connection, the pressure collecting element 2213 is welded with the non-pole welding area 2241 of the bus bar 211, and the welding area 2242 of the bus bar 211 is welded with the pole of the battery. In the present embodiment, different types of pressure elements 2213 can be used for the pressure elements 2213, and for example, the pressure elements 2213 can be used for collecting the voltage of the bus bar 224 by using nickel sheets.
It should be understood that the wire harness board assembly provided in the embodiments of the present application may include only the temperature sensing element 2212, and may also include both the temperature sensing element 2212 and the pressure sensing element 2213, and in a specific arrangement, the arrangement may be set according to actual requirements.
The wire harness board assembly provided in the embodiment of the present application further includes a main circuit board 2211 in addition to the above-mentioned functional devices (the voltage collecting element 2213 and the temperature collecting element 2212), and the main circuit board 2211 is used for electrically connecting with the above-mentioned functional devices to transmit signals collected by the functional devices. Illustratively, the temperature sensing element 2212 and the pressure sensing element 2213 are respectively connected to the main circuit board 2211, so as to transmit the sensed voltage signal and temperature signal to the main circuit board 2211 and to a device for monitoring the battery through the main circuit board 2211.
As an alternative, the harness board 222 provided in the embodiment of the present application is provided with an operation hole corresponding to the position of the temperature sensing element 2212. So as to facilitate the connection between the temperature sensing element 2212 and the housing when the harness board assembly is connected to the battery, the size of the operation hole is smaller than that of the temperature sensing element 2212, thereby reducing the influence on the strength of the harness board 222.
In an implementation, the wire harness board 222 may be provided with a groove 2211, and the signal collecting board 221 is at least partially fixed in the groove 2211. Illustratively, the portion of the signal collecting board 221 located in the groove 2221 is the main circuit board 2211 of the signal collecting board 221.
Specifically, when the groove 2221 is provided, the groove 2211 is opened on a surface of the wiring harness board 222 facing the bottom surface of the battery 210, and the opening direction of the groove 2211 faces the bottom surface of the battery 210. The signal collecting plate 221 may be directly fixed in the recess 2211. Thereby further limiting the signal acquisition board 221. As a modified structure, in addition to the groove 2211, a notch or a through hole may be provided on the wiring board 222 to accommodate the signal collecting board 221, or the signal collecting board 221 may be directly fixed to the surface of the wiring board 222 facing the bottom surface of the battery 210.
When the signal acquisition board 221 is fixedly connected with the wiring harness board 222, different connection modes can be adopted. Illustratively, the signal collecting board 221 is bonded or heat-fused to the harness board 222. Of course, other ways of connection than the above-described examples may be used. If the wiring harness board 222 is provided with the groove 2211, the signal collecting board 221 can be fixed in the groove 2211 by the way of clamping the signal collecting board 221 and the groove 2211.
As a practical solution, the battery pack 200 provided in the embodiment of the present application may further include a buffer layer 223. A buffer layer 223 is disposed between the signal collecting plate 221 and the battery 210. Illustratively, the buffer layer is specifically disposed between the main circuit board 2211 and the battery.
In specific connection, the buffer layer 223 is adhesively connected to the signal acquisition board 221, that is, the buffer layer is adhesively connected to the main circuit board 2211. The buffer layer 223 may be made of buffer foam or other insulating elastic material. Thereby further improving the safety of the signal collection board 221. Certainly, as an expansion scheme, a buffer layer 223 may also be disposed between the wiring harness board 222 and the signal acquisition board 221, so as to avoid the signal acquisition board 221 from being torn and deformed during vibration, and also improve the safety of the signal acquisition board 221.
The embodiment of the present application further provides a battery pack, which includes a case 100 and the battery pack 200 provided in the case 100. In the above technical solution, the signal collecting board 221 is disposed on one surface of the wiring harness board assembly 220 facing the battery 210, so that the signal collecting board 221 can be protected by the wiring harness board 222, and on the other hand, the signal collecting board 221 is disposed on one surface of the wiring harness board assembly 220 facing the battery 210, so that the signal collecting board 221 can be closer to the battery 210, thereby improving the detection accuracy.
When the battery 210 is inverted such that the harness board assembly 220 is positioned below the battery 210 in the height direction of the battery 210, the harness board assembly 220 is positioned between the bottom plate of the case 100 and the battery 210. So that the signal collection board 221 can be protected by the harness board assembly 220.
The embodiment of the application also provides an automobile which comprises an automobile body and the battery pack 200 or the battery pack arranged on the automobile body.
In above-mentioned technical scheme, through adopting the one side of setting the signal acquisition board towards the battery in the pencil board subassembly to accessible pencil board protection signal acquisition board, on the other hand, through setting the signal acquisition board on pencil board subassembly towards the one side of battery, also can make the signal acquisition board be closer to the battery, improve the degree of accuracy that detects.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on operational states of the present application, and are only used for convenience in describing and simplifying the present application, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly specified or limited. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application has been described above with reference to preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the present application can be subjected to various substitutions and improvements, and the substitutions and the improvements are all within the protection scope of the present application.
Claims (10)
1. A battery pack, comprising: a battery and a wiring harness board assembly;
the wire harness plate assembly comprises a wire harness plate and a bus bar arranged on the wire harness plate; the bus bar is electrically connected with the pole of the battery;
the wiring harness board assembly further comprises a signal acquisition board which is arranged on the wiring harness board and used for acquiring battery signals; the signal acquisition board is positioned between the wiring harness board and the battery.
2. The battery pack according to claim 1, wherein the wiring harness board assembly is located below the battery in a height direction of the battery; the pole is located on the bottom surface of the battery.
3. The battery pack of claim 1, wherein the signal acquisition board comprises a voltage acquisition element; the pressure collecting element is connected with one side of the bus bar, which faces the battery.
4. The battery pack according to claim 3, wherein the mining member is welded to the non-pole welding area of the busbar.
5. The battery pack of any of claims 1-4, wherein the signal acquisition board further comprises a temperature acquisition element coupled to the housing of the battery.
6. The battery pack according to claim 5, wherein the harness plate is provided with an operation hole corresponding to a position of the temperature collection element.
7. The battery pack of claim 1, wherein the signal acquisition board further comprises a main circuit board with a buffer layer disposed between the main circuit board and the battery.
8. The battery pack of claim 5, wherein the wiring harness board is provided with a recess, and the signal acquisition board is at least partially secured within the recess.
9. A battery pack comprising a case and the battery pack according to any one of claims 1 to 8 disposed in the case.
10. The battery pack according to claim 9, wherein the wire harness board assembly is located between a bottom plate of the case and the battery when the wire harness board assembly is located below the battery in a height direction of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222478498.5U CN218385670U (en) | 2022-09-19 | 2022-09-19 | Battery pack and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222478498.5U CN218385670U (en) | 2022-09-19 | 2022-09-19 | Battery pack and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218385670U true CN218385670U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222478498.5U Active CN218385670U (en) | 2022-09-19 | 2022-09-19 | Battery pack and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218385670U (en) |
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2022
- 2022-09-19 CN CN202222478498.5U patent/CN218385670U/en active Active
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