CN219811639U - Battery module cell temperature and pressure measuring assembly - Google Patents
Battery module cell temperature and pressure measuring assembly Download PDFInfo
- Publication number
- CN219811639U CN219811639U CN202320960004.9U CN202320960004U CN219811639U CN 219811639 U CN219811639 U CN 219811639U CN 202320960004 U CN202320960004 U CN 202320960004U CN 219811639 U CN219811639 U CN 219811639U
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- CN
- China
- Prior art keywords
- temperature sensor
- output section
- battery module
- buffer mechanism
- pressure measurement
- Prior art date
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 41
- 238000005070 sampling Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 22
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000006837 decompression Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
Abstract
The utility model discloses a battery module cell temperature measurement and pressure measurement assembly, which comprises a sampling terminal arranged on a cell pole of a busbar, wherein the sampling terminal comprises a collecting section, one end of the collecting section is upwards bent and provided with a transition step surface, an output section parallel to the collecting section is arranged on the transition step surface in an extending mode, the collecting section is connected with the cell pole on the busbar, the bottom of the output section is connected with a reinforcing buffer mechanism, a temperature sensor is arranged on the reinforcing buffer mechanism, and a gap between the temperature sensor and the output section is filled with heat conducting glue. According to the scheme, the heat transfer consumption is reduced, the accuracy of an information acquisition result and the sampling efficiency are improved, the positioning and the protection of the temperature sensor are realized, and the flexible energy absorption and anti-seismic decompression functions of the temperature measuring and pressure measuring assembly are improved.
Description
Technical Field
The utility model relates to the field of new energy batteries, in particular to a battery module cell temperature and pressure measuring assembly.
Background
In the working process of the power battery, temperature and voltage signals of an electric core in the battery pack are required to be collected, and then the battery pack is monitored in real time through a battery management system to manage and adjust the running state of the battery pack. In the signal acquisition assembly of the existing battery module, temperature acquisition and voltage acquisition are mutually independent through guide structures, the integration level is low, for example, the patent name of the utility model patent is CN208026382U, the patent name is battery module temperature acquisition sheet, battery module and temperature sensor installation device, the battery module temperature acquisition sheet comprises a temperature sensor and an FPC, the temperature sensor is packaged on the FPC, a welding area for laser welding the temperature acquisition sheet on the battery module is arranged on the FPC, and the temperature sensor is packaged on the FPC through a glue coating layer. In this structure, gather the piece and only possess the temperature acquisition function, simultaneously, be provided with a plurality of conduction medium between temperature sensor and the busbar, need pass through secondary conduction transition, the energy loss appears easily in the heat at the transmission in-process, and conduction speed is slow, and the measurement deviation is big. In addition, in the battery pack working process, the battery pack is easy to generate heat and expand, size change and vibration occur, and in the comparison document, a protection/reinforcement structure is not provided outside the temperature sensor, so that the temperature sensor is easy to shift or be damaged. In the prior art, two protection methods for the temperature sensor are mainly adopted, one is that the temperature sensor is arranged on the PFC board, an annular or square reinforcement structure or a buckle structure is arranged on the periphery of the temperature sensor, the reinforcement structure usually adopts a metal structure, and burrs of the metal structure are easy to damage a printed circuit on the PFC flexible circuit board in the fixing process; the other is to directly arrange the temperature sensor on the sampling nickel sheet and arrange a plurality of raised protection structures on the sampling nickel sheet, so that the structure shortens the heat conduction distance, enhances the accuracy of information acquisition, however, the structure is complex and has extremely high requirements on the processing accuracy of the sampling nickel sheet.
Disclosure of Invention
Therefore, in order to solve the problems, the utility model provides a battery module cell temperature and pressure measuring assembly.
The utility model is realized by the following technical scheme:
the utility model provides a battery module electricity core temperature measurement, pressure measurement subassembly, includes the sampling terminal of setting on the electric core post of busbar, sampling terminal includes the collection section, the one end of collection section is upwards buckled and is provided with the transition step face, extend on the transition step face be provided with the parallel output section of collection section, the collection section is connected with the electric core post on the busbar, output section bottom is connected with reinforcement buffer gear, be provided with temperature sensor on the reinforcement buffer gear, the output section is including two pins that the interval set up, temperature sensor sets up between two pins, just temperature sensor with gap department between the output section is filled with heat conduction glue.
Preferably, the transition step surface is a smooth S-shaped step surface, the transition step surface and the reinforcing buffer mechanism are arranged at intervals to form a section of avoidance space, and the upper surface of the reinforcing buffer mechanism is connected with the lower surface of the output section and extends to the outside of the output section.
Preferably, the electrodes at two ends of the temperature sensor are respectively connected with a first bonding pad, sampling wires are welded on the first bonding pads respectively, and the sampling wires are enameled wires.
Preferably, a conductive piece is respectively arranged between the electrodes at two ends of the temperature sensor and the first bonding pad, one end of the conductive piece is connected with the electrode of the temperature sensor, and the first bonding pad is arranged at the other end of the conductive piece.
Preferably, the reinforcing buffer mechanism is further provided with a pressure measuring unit, the pressure measuring unit comprises a pressure measuring conductive sheet, one end of the pressure measuring conductive sheet is arranged along the lower surface of the output section and welded with the lower surface of the output section, the upper surface of the other end of the pressure measuring conductive sheet is provided with a second bonding pad, a sampling line is welded on the second bonding pad, and the second bonding pad is parallel to the first bonding pad.
Preferably, the heat conduction reinforcing buffer mechanism comprises a reinforcing plate, a first insulating layer is arranged on the reinforcing plate, the first insulating layer is connected with the reinforcing plate through a double-sided thermosetting adhesive layer, and the temperature sensor and the conductive piece are arranged on the upper surface of the first insulating layer.
Preferably, the conductive member is further provided with a second insulating layer, and the second insulating layer is provided with a avoidance hole for avoiding the first bonding pad and the second bonding pad.
Preferably, the top of the first bonding pad and the second bonding pad are provided with UV glue sealing layers.
Preferably, the thickness of the reinforcing buffer mechanism is equal to the height difference between the collecting section and the output section.
Preferably, the thickness of the output section is greater than or equal to the height of the temperature sensor.
The technical scheme of the utility model has the beneficial effects that:
1. the temperature measurement, pressure measurement subassembly bottom sets up reinforcement mechanism, simultaneously, temperature sensor sets up between two pins of sampling terminal output section to seal through the heat conduction glue, when guaranteeing heat conductivility, reducing heat consumption, realize temperature sensor's location and protection, improve temperature measurement, pressure measurement subassembly's flexible energy-absorbing and antidetonation decompression function, can effectively cushion the stress and the change of battery module size that vibration or battery inflation brought in various application scenarios.
2. The temperature measuring and pressure measuring assembly is integrated on the upper surface of the reinforcing mechanism and is connected with the output section of the sampling terminal, so that the integration level of the temperature measuring and pressure measuring assembly is improved, the heat and electricity conducting distance is shortened, the accuracy of the information acquisition result is improved, and the sampling efficiency is also improved.
3. Adopt the insulating layer that possesses flexible energy-absorbing function, form buffer structure at the upper and lower surface of temperature measurement, pressure measurement subassembly, simultaneously, buffer structure that the insulating layer formed does not form the interference between temperature measurement, pressure measurement subassembly and sampling terminal, and temperature measurement, pressure measurement subassembly connect the sampling line, do not adopt FPC flexible line board, improved the flexibility that temperature measurement, pressure measurement group set up, simultaneously, enameled wire itself possesses certain antidetonation buffer function, for printed wiring, not fragile.
Drawings
FIG. 1 is a perspective view of a cell module cell temperature and pressure sensing assembly;
FIG. 2 is a top view of a cell module cell temperature and pressure sensing assembly;
FIG. 3 is a bottom view of the cell module cell temperature and pressure measuring assembly (with the stiffener, double-sided thermoset adhesive layer and first insulating layer omitted);
FIG. 4 is a left side view of the cell module cell temperature and pressure sensing assembly;
FIG. 5 is an enlarged view of portion A of FIG. 4;
fig. 6 is a schematic structural view of the second insulating layer.
Detailed Description
So that the objects, advantages and features of the present utility model can be more clearly and specifically set forth, a more particular description of the preferred embodiments will be rendered by the following non-limiting description thereof. The embodiment is only a typical example of the technical scheme of the utility model, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the utility model.
It is also stated that, in the description of the aspects, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like in this description are used for descriptive purposes only and are not to be construed as indicating or implying a ranking of importance, or as implicitly indicating the number of technical features shown. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the present utility model, the meaning of "plurality" means two or more, unless specifically defined otherwise.
The utility model discloses a battery module cell temperature measurement and pressure measurement assembly, which is shown in fig. 1 and 2 and comprises a sampling terminal arranged on a cell pole of a busbar, wherein the sampling terminal is used for transmitting the temperature and the voltage of the cell pole, the sampling terminal can be used for selectively sampling nickel sheets, the battery module cell temperature measurement and pressure measurement assembly comprises a collecting section 1, one end of the collecting section 1 is upwards bent and provided with a transition step surface 2, an output section 3 parallel to the collecting section 1 is arranged on the transition step surface 2 in an extending manner, the collecting section 1 is connected with the cell pole on the busbar, the connecting mode between the collecting section 1 and the cell pole can be welding, in some embodiments, the whole shape of the collecting section 1 is rectangular or round corner rectangular, in other embodiments, the shape of the collecting section 1 can be adjusted into other shapes according to the shape of the cell pole, and details are omitted.
As shown in fig. 1 and fig. 2, the bottom of the output section 3 is connected with a reinforcing buffer mechanism, a temperature sensor 4 is disposed on the reinforcing buffer mechanism, the type of the temperature sensor 4 can be selected according to actual needs, in an embodiment, the temperature sensor 4 is an NTC thermistor, the output section 3 of the sampling terminal includes two pins 301 disposed at intervals, the temperature sensor 4 is disposed between the two pins 301, so that the output section 3 surrounds three surfaces of the temperature sensor 4, a gap between the temperature sensor 4 and the output section 3 is filled with a heat-conducting glue (not shown in the drawing), the heat-conducting glue is wrapped around the periphery of the temperature sensor 4, on one hand, a protection structure is formed between the sampling terminal and the temperature sensor 4 to prevent heat loss, and on the other hand, a positioning between the temperature sensor 4 and the sampling terminal, the reinforcing buffer mechanism and the reinforcing buffer mechanism is realized.
The thickness of the output section 3 of the sampling terminal can be adjusted as required, in a preferred embodiment, the thickness of the output section 3 is greater than or equal to the height of the temperature sensor 4, after the heat conducting glue is filled between the temperature sensor 4 and the output section 3, the heat conducting glue and the buffer reinforcing mechanism together form a sealing structure outside the whole temperature sensor 4, so that the shock resistance and the buffer performance of the temperature sensor 4 are improved while the temperature measuring effect is not influenced.
In some embodiments, the transition step surface 2 may be a straight inclined surface or a plane arranged vertically between the collecting section 1 and the output section 3; in a preferred embodiment, the transition step surface 2 is a smooth S-shaped step surface, the transition step surface 2 and the reinforcing buffer mechanism are arranged at intervals to form a section of avoidance space 5, interference between the collection section 1 and the transition step surface 2 on the reinforcing buffer mechanism in the vibration process of the battery pack is avoided, the upper surface of the reinforcing buffer mechanism is connected with the lower surface of the output section 3 and extends to the outside of the output section 3, and in particular, the whole buffering and reinforcing mechanism is arranged in parallel with the output section 3 and extends to one end of the output section 3 far away from the collection section 1.
The two-end electrodes of the temperature sensor 4 are respectively connected with a first bonding pad 6, sampling wires 10 are welded on the first bonding pads 6 respectively, the sampling wires 10 are enameled wires, a conductive piece 7 is arranged between the positive electrode of the temperature sensor 4 and the first bonding pad 6, a conductive piece 7 is arranged between the negative electrode of the temperature sensor 4 and the first bonding pad 6, one end of each conductive piece 7 is connected with the electrode of the temperature sensor 4, and the other end of each conductive piece 7 is provided with the first bonding pad 6.
As shown in fig. 3, the reinforcing buffer mechanism is further provided with a pressure measuring unit, the pressure measuring unit includes a pressure measuring conductive sheet 8, one end of the pressure measuring conductive sheet 8 is disposed along the lower surface of the output section 3 and is welded with the lower surface of the output section 3, under the premise of ensuring that the pressure measuring conductive sheet 8 does not exceed the outside of the reinforcing buffer mechanism, the shape of the welded end of the pressure measuring conductive sheet 8 and the output section 3 is basically attached to the shape of the lower surface of the output section 3, so that the contact area between the pressure measuring conductive sheet 8 and a sampling terminal is increased, the conductive effect is improved, the upper surface of the other end of the pressure measuring conductive sheet 8 is provided with a second bonding pad 9, the second bonding pad 9 is parallel to the first bonding pad 6, a sampling wire 10 is welded on the second bonding pad 9, and the sampling wire 10 is preferably an enameled wire.
In some embodiments, the battery module cell temperature and pressure measuring assembly can be connected to the PCB board provided with the sampling line 10 by the sampling line 10 welded on the first bonding pad 6 and the second bonding pad 9; in a preferred embodiment, when the plurality of battery module cells are connected with the temperature measuring and pressure measuring assembly, the PCB and the FPC flexible circuit board are omitted, the plurality of sampling wires 10 are directly converged into a sampling wire harness, and the sampling wire harness is positioned and covered and protected through UV glue.
As shown in fig. 4 and 5, the heat conduction reinforcing buffer mechanism includes a reinforcing plate 11, the material of the reinforcing plate 11 may be selected according to the need, the reinforcing plate 11 may be made of metal or non-metal, in a preferred embodiment, the reinforcing plate 11 is made of FR4, a first insulating layer 12 is disposed on the reinforcing plate 11, the first insulating layer 12 is connected with the reinforcing plate 11 through a double-sided thermosetting adhesive layer 13, the temperature sensor 4 and the conductive member 7 are disposed on the upper surface of the first insulating layer 12, a second insulating layer 14 is further disposed on the conductive member 7, a avoiding hole 1401 for avoiding the first bonding pad 6 and the second bonding pad 9 is disposed on the second insulating layer 14, in a preferred embodiment, the bottom of the second insulating layer 14 is welded with the bottoms of the two pins 301 on the output section 3 of the sampling terminal, the bottom of the second insulating layer 14 is welded with the conductive member 7 and the pressure measurement conductive sheet 8, and the second insulating layer 14 is not in contact with the temperature sensor 4, in a preferred embodiment, the first insulating layer 14 is slightly interfered with the second bonding pad 6 and the second bonding pad 9, and the second bonding pad 9 is prevented from being inflated in the first hole 1401 and the second bonding pad 9.
The top of the first pad 6 and the second pad 9 are further provided with a UV glue sealing layer (not shown in the figure) for positioning and protecting the sampling lines 10 in the first pad 6 and the second pad 9, and in a preferred embodiment, the UV glue sealing layer is filled in the avoiding holes 1401, and the upper surface of the UV glue sealing layer is flush with the upper surface of the second insulating layer 14.
In a preferred embodiment, the thickness of the reinforcing buffer mechanism is equal to the height difference between the acquisition section 1 and the output section 3, so that the flatness of the whole battery module cell temperature measurement and pressure measurement assembly is improved, and the installation is convenient.
The utility model has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.
Claims (10)
1. Battery module electricity core temperature measurement, pressure measurement subassembly, including setting up the sampling terminal on the electric core utmost point post of busbar, its characterized in that: the sampling terminal comprises an acquisition section, one end of the acquisition section is upwardly bent and provided with a transition step surface, an output section parallel to the acquisition section is arranged on the transition step surface in an extending mode, the acquisition section is connected with a battery core pole on a busbar, the bottom of the output section is connected with a reinforcing buffer mechanism, a temperature sensor is arranged on the reinforcing buffer mechanism, the output section comprises two pins arranged at intervals, the temperature sensor is arranged between the two pins, and a gap between the temperature sensor and the output section is filled with heat conducting glue.
2. The battery module cell temperature and pressure measurement assembly of claim 1, wherein: the transition step surface is a smooth S-shaped step surface, the transition step surface and the reinforcing buffer mechanism are arranged at intervals to form a section of avoidance space, and the upper surface of the reinforcing buffer mechanism is connected with the lower surface of the output section and extends to the outside of the output section.
3. The battery module cell temperature and pressure measurement assembly of claim 1, wherein: the two-end electrodes of the temperature sensor are respectively connected with a first bonding pad, sampling wires are welded on the first bonding pads respectively, and the sampling wires are enameled wires.
4. The battery module cell temperature and pressure measurement assembly of claim 3, wherein: and a conductive piece is arranged between the electrodes at the two ends of the temperature sensor and the first bonding pad respectively, one end of the conductive piece is connected with the electrode of the temperature sensor, and the first bonding pad is arranged at the other end of the conductive piece.
5. The battery module cell temperature and pressure measurement assembly of claim 4, wherein: the reinforcing buffer mechanism is characterized in that a pressure measuring unit is further arranged on the reinforcing buffer mechanism and comprises a pressure measuring conductive sheet, one end of the pressure measuring conductive sheet is arranged along the lower surface of the output section and welded with the lower surface of the output section, a second bonding pad is arranged on the upper surface of the other end of the pressure measuring conductive sheet, a sampling line is welded on the second bonding pad, and the second bonding pad is parallel to the first bonding pad.
6. The battery module cell temperature and pressure measurement assembly of claim 5, wherein: the heat conduction reinforcing buffer mechanism comprises a reinforcing plate, a first insulating layer is arranged on the reinforcing plate, the first insulating layer is connected with the reinforcing plate through a double-sided thermosetting adhesive layer, and the temperature sensor and the electric conduction piece are arranged on the upper surface of the first insulating layer.
7. The battery module cell temperature and pressure measurement assembly of claim 6, wherein: the conductive member is further provided with a second insulating layer, and the second insulating layer is provided with avoidance holes for avoiding the first bonding pads and the second bonding pads.
8. The battery module cell temperature and pressure measurement assembly of claim 1, wherein: the top of first pad and second pad is provided with UV gluey sealing layer.
9. The battery module cell temperature and pressure measurement assembly of claim 1, wherein: the thickness of the reinforcing buffer mechanism is equal to the height difference between the acquisition section and the output section.
10. The battery module cell temperature and pressure measurement assembly of claim 1, wherein: the thickness of the output section is greater than or equal to the height of the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320960004.9U CN219811639U (en) | 2023-04-25 | 2023-04-25 | Battery module cell temperature and pressure measuring assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320960004.9U CN219811639U (en) | 2023-04-25 | 2023-04-25 | Battery module cell temperature and pressure measuring assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219811639U true CN219811639U (en) | 2023-10-10 |
Family
ID=88215475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320960004.9U Active CN219811639U (en) | 2023-04-25 | 2023-04-25 | Battery module cell temperature and pressure measuring assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219811639U (en) |
-
2023
- 2023-04-25 CN CN202320960004.9U patent/CN219811639U/en active Active
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