CN213715409U - Energy recovery device and battery test system - Google Patents
Energy recovery device and battery test system Download PDFInfo
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- CN213715409U CN213715409U CN202021961570.4U CN202021961570U CN213715409U CN 213715409 U CN213715409 U CN 213715409U CN 202021961570 U CN202021961570 U CN 202021961570U CN 213715409 U CN213715409 U CN 213715409U
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Abstract
The utility model provides an energy recuperation device and battery test system, energy recuperation device includes: the heat release module is electrically connected with the battery testing device and used for acquiring electric energy generated during battery discharging and converting the electric energy into heat energy; the first heat cycle module comprises a first heat exchanger, a second heat exchanger, a first pipeline, a first heat transfer working medium and a first pump, wherein the first heat exchanger is used for acquiring heat energy emitted by the heat release module; and a first heat load module for receiving the thermal energy obtained by the second heat exchanger. The electric energy released by the battery discharging is converted into heat energy through the heat releasing module, and the heat energy can be transferred to the first heat load module through the first heat circulation module, so that the electric energy of the battery can be recycled, and the energy waste is avoided.
Description
Technical Field
The utility model belongs to the technical field of the battery detects, more specifically says, relates to an energy recuperation device and battery test system.
Background
The power battery is used as a core component of the electric automobile, generally accounts for more than 30% of the manufacturing cost of the whole automobile, and plays a decisive role in the endurance and safety of the electric automobile, so that the corresponding performance test of the power battery is an important link in the production and use processes of the power battery.
Generally, the power battery performance test includes cycle performance detection, rate charge and discharge detection, overcharge detection, overdischarge detection, 7-day storage detection in a 60 ℃ environment, normal-temperature 30-day storage detection and the like, and the above items all relate to the charge and discharge process of the power battery.
At present, the common discharge modes in the test process include the following: the silicon controlled rectifier is adopted for grid-connected discharging, so that the discharging electric energy can return to the public power grid, but the recovery rate of the discharging electric energy is lower in the mode; meanwhile, a plurality of groups of test equipment are adopted to match and supply power to the power battery to be discharged and the power battery to be charged, but in the mode, the charging amount and the discharging amount are difficult to achieve perfect matching in time and space, so that the energy recovery efficiency is low, and the whole system is complex.
It can be seen that when discharging in the current power battery testing process, the problem of low electric energy recovery rate and large energy waste exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat reclamation device and battery test system, when aiming at solving and discharging in the present power battery test procedure, there is the electric energy rate of recovery lower, leads to the extravagant big problem of the energy.
In order to achieve the purpose, the utility model adopts the technical proposal that: the energy recovery device is used for recovering electric energy released by battery discharge when a battery is subjected to a performance test through a battery testing device and comprises:
the heat release module is electrically connected with the battery testing device and used for acquiring electric energy generated during battery discharging and converting the electric energy into heat energy;
the first heat cycle module comprises a first heat exchanger, a second heat exchanger, a first pipeline, a first heat transfer working medium and a first pump, wherein the first heat exchanger is used for acquiring heat energy emitted by the heat release module; and
and the first heat load module is used for receiving the heat energy obtained by the second heat exchanger.
In one embodiment, the first thermal cycle module further comprises a first valve disposed on the first conduit for regulating a flow of the first heat transfer medium within the first conduit.
In one embodiment, the heat release module comprises a dc converter and a heat release resistor, and the heat release resistor is electrically connected to the battery test device through the dc converter.
In one embodiment, the energy recovery device further comprises:
the second heat cycle module comprises a third heat exchanger, a second pipeline, a second heat transfer working medium, a second pump and a second valve, the second pipeline is communicated with the second heat exchanger and the third heat exchanger, the second pump is arranged on the second pipeline and used for enabling the second heat transfer working medium to circularly flow between the second heat exchanger and the third heat exchanger through the second pipeline, and the second valve is arranged on the second pipeline and used for adjusting the flow rate of the second heat transfer working medium in the second pipeline; and
and the second heat load module is used for receiving the heat energy acquired by the third heat exchanger.
In one embodiment, the second thermal cycle module further comprises a plurality of third heat exchangers, a plurality of groups of third pipelines sequentially communicated with the third heat exchangers, a third pump and a third valve which are arranged on each group of third pipelines, and a third heat transfer working medium, wherein the third heat transfer working medium can circularly flow between any two directly connected third heat exchangers through one group of third pipelines;
the energy recovery device includes a plurality of second heat load modules in one-to-one correspondence with the plurality of third heat exchangers.
In one embodiment, the first, second and third heat transfer media are each comprised of water and air.
In one embodiment, the energy recovery device further includes a control module, and the control module is respectively connected in communication with each dc converter, the first pump, the first valve, the second pump, the second valve, the third pump, and the third valve.
In one embodiment, the energy recovery device is electrically connected to the battery testing device.
In one embodiment, the battery testing device includes a testing module, a transmission module and a monitoring module, the testing module is used for testing the performance of the battery, the transmission module is respectively electrically connected to the testing module and the heat releasing module in the energy recovery device and is used for transmitting the electric energy released by the battery to the heat releasing module when the battery discharges through the testing module, and the monitoring module is electrically connected to the transmission module and is used for monitoring the electric quantity transmitted to the heat releasing module by the transmission module.
In one embodiment, the battery testing apparatus includes a plurality of testing modules and a plurality of transmission modules electrically connected to the testing modules in a one-to-one correspondence manner, and the heat releasing module includes dc converters electrically connected to the transmission modules in a one-to-one correspondence manner, and heat releasing resistors electrically connected to the dc converters, respectively.
The utility model provides an energy recuperation device's beneficial effect lies in, among the above-mentioned energy recuperation device, through setting up exothermic module and battery testing arrangement electric connection, make battery testing arrangement carry out performance test's in-process to the battery, the electric energy that the battery discharged the release can trun into heat energy to spill into by exothermic module, and through first heat exchanger and the second heat exchanger in the first thermal cycle module, can carry out recycle with the heat energy transfer that exothermic module spilled to first heat load module, energy recuperation efficiency has been improved promptly, avoid appearing the problem of the energy a large amount of wastes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a battery energy transmission path when a battery is discharged by a battery testing system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery testing system according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a connection portion between a first thermal cycle module and a second thermal cycle module in an electrical measurement test system according to another embodiment of the present invention.
In the figure: 10. a battery testing device; 11. a test module; 12. a transmission module; 13. a detection module; 20. An energy recovery device; 21. a heat release module; 211. a DC converter; 212. a heat release resistance; 22. a first thermal cycle module; 221. a first heat exchanger; 222. a second heat exchanger; 223. a first conduit; 224. a first pump; 225. a first valve; 23. a first heat load module; 24. a second thermal cycle module; 241. a third heat exchanger; 242. a second conduit; 243. a second pump; 244. a second valve; 245. a third pipeline; 246. a third pump; 247. a third valve; 25. a second heat load.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 2, a battery testing system according to an embodiment of the present invention will now be described. The battery test system comprises a battery test device 10 and an energy recovery device 20, wherein the electrical measurement test device 10 comprises a test module 11, a transmission module 12 and a monitoring module 13, the test module 11 is connected with a battery 30 and is used for performing corresponding performance test on the battery 30, the transmission module 12 is respectively electrically connected with the test module 11 and the energy recovery device 20, so that when the test module 11 discharges the battery 30, electric energy released by the battery 30 can be transmitted to the energy recovery device 20 through the transmission module 12 for recycling, and the monitoring module 13 is electrically connected with the transmission module 12 and is used for monitoring electric quantity transmitted to the energy recovery device 20 through the transmission module 12 when the battery 30 discharges, so that the energy recovery device 20 is correspondingly adjusted according to the electric quantity, the energy recovery device 20 is matched with the electric quantity discharged by the battery 30, and overload is prevented; the energy recovery device 20 includes a heat releasing module 21, a first thermal cycle module 22 and a first thermal load module 23, the heat releasing module 21 is electrically connected to the transmission module 12, and is configured to transmit the electric energy transmitted by the transmission module 12 to heat energy for dissipation, and the first thermal cycle module 22 is configured to transmit the heat energy dissipated by the heat releasing module 21 to the first thermal load module 23, so as to be used as an energy source of the first thermal load module 23.
The utility model provides a battery test system and energy recuperation device 20's beneficial effect lies in: the electric energy released by the discharge of the battery 30 is converted into heat energy through the heat release module 21, and then the heat energy can be transferred to the first heat load module 23 through the first heat cycle module 22, so that the electric energy of the battery 30 is recycled, the energy waste is avoided, the structure of the energy recovery device 20 is relatively simple, and the manufacturing cost is low.
The battery 30 may be a single battery, a battery module, or a battery pack. The battery module is formed by connecting any number of single battery cores in series and in parallel, and the battery pack is formed by connecting any number of battery modules in series and in parallel.
Further, in the present embodiment, the heat releasing module 21 includes a dc converter 211 and a heat releasing resistor 212, the heat releasing resistor 212 is electrically connected to the transmission module 12 through the dc converter 211, and the dc converter 211 is configured to convert an output characteristic of a current in the transmission module 12, so that the electric energy released by the discharge of the battery 30 can be matched with the heat releasing resistor 212, and a normal heat releasing effect of the heat releasing resistor 212 is ensured.
Further, in an embodiment, the battery testing apparatus 10 includes a plurality of testing modules 11 and a plurality of transmission modules 12 electrically connected to the testing modules 11 in a one-to-one correspondence, and the energy recovery apparatus 20 includes dc converters 211 electrically connected to the transmission modules 12 in a one-to-one correspondence, and heat dissipation resistors 212 electrically connected to the dc converters 211, respectively.
Further, in the present embodiment, the dc converter 211 is electrically connected to the transmission module 12 and the heat-releasing resistor 212 through a dc bus, and a circuit sampling unit (not shown) and a digital communication interface (not shown) electrically connected to the circuit sampling unit are additionally disposed in the dc converter 211, and the circuit sampling unit is configured to detect the current precision parameter and output the current precision parameter to an external display device (not shown) through the digital communication interface.
Specifically, in this embodiment, the dc converter 211 is electrically connected to the transmission module 12 and the heat-releasing resistor 212 through a 48 v dc bus, and the dc converter 211 at least includes the following operation modes: constant voltage mode, constant current mode, constant resistance mode, constant power mode.
Further, in this embodiment, the first heat cycle module 22 includes a first heat exchanger 221, a second heat exchanger 222, a first pipe 223, a first pump 224 and a first heat transfer medium (not shown), where the first heat exchanger 221 is configured to obtain heat energy dissipated by the heat-releasing resistor 212, the first pipe 223 is communicated with the first heat exchanger 221 and the second heat exchanger 222, and the first pump 224 is disposed on the first pipe 223 and is configured to enable the first heat transfer medium to circulate between the first heat exchanger 221 and the second heat exchanger 222 through the first pipe 223, so as to realize heat transfer between the first heat exchanger 221 and the second heat exchanger 222, that is, the heat energy obtained by the first heat exchanger 221 from the heat-releasing resistor 212 is transferred to the second heat exchanger 222, and then is transferred to the first heat load module 23 by the second heat exchanger 222 to utilize the heat energy.
Specifically, in the present embodiment, the first heat exchanger 221 is a direct contact heat exchanger, and the heat-releasing resistor 212 is directly disposed in the first heat exchanger 221 for heat transfer; in other embodiments, the first heat exchanger 221 may also be a dividing wall type heat exchanger with a heat transfer medium (such as air), in which case the heat-releasing resistor 212 transfers heat energy to the dividing wall type heat exchanger by heating the heat transfer medium; more specifically, in the present embodiment, the second heat exchanger 222 is a dividing wall type heat exchanger, and specifically includes a plate type heat exchanger, a straight tube type heat exchanger, or a straight tube type heat exchanger with fins; the first heat exchanger 221 and the second heat exchanger 222 may be made of any one of aluminum, copper, stainless steel, aluminum alloy, and copper alloy.
In this embodiment, the first pipe 223 includes a first pipe (not shown) and a second pipe (not shown), and the first pump 224 is in communication with the first pipe or the second pipe, so that the first heat transfer medium flows from the first heat exchanger 221 to the second heat exchanger 222 through the first pipe, and then flows from the second heat exchanger 222 to the first heat exchanger 221 through the second pipe, so as to realize the circulation flow of the first heat transfer medium; and the first pump 224 can also adjust the flow rate of the first heat transfer working medium according to the electric quantity monitored by the monitoring module 13 or the rated power of the first heat load module 23, so as to adjust the heat transfer efficiency between the first heat exchanger 221 and the second heat exchanger 222, so that the energy (electric energy) released when the battery 30 discharges can be adapted to the energy (heat energy) required when the first heat load module 23 normally works.
Further, in this embodiment, the first thermal cycle module 22 further includes a first valve 225, and the first valve 225 is disposed on the first pipe or the second pipe for adjusting the flow rate of the first heat transfer medium, so as to cooperate with the first pump 224 to adjust the heat transfer efficiency between the first heat exchanger 221 and the second heat exchanger 222.
Further, in this embodiment, the energy recovery device 20 further includes a second thermal cycle module 24, specifically, the second thermal cycle module 24 includes a third heat exchanger 241, a second pipe 242, a second pump 243, a second valve 244 and a second heat transfer medium (not shown), the second pipe 242 communicates the second heat exchanger 222 and the third heat exchanger 241, and the second pump 243 and the second valve 244 are disposed on the second pipe 242, the second pump 243 is configured to circulate the second heat transfer medium between the second heat exchanger 220 and the third heat exchanger 241 through the second pipe 242, so that the thermal energy obtained by the second heat exchanger 222 can be further transferred to the third heat exchanger 241 in addition to the first heat load module 23, and the second pump 243 is further configured to adjust a flow rate of the second heat transfer medium in the second pipe 242, the second valve 244 is configured to adjust a flow rate of the second heat transfer medium in the second pipe 242, thereby adjusting the heat transfer efficiency between the second heat exchanger 222 and the third heat exchanger 241 in cooperation with the second pump 243. Correspondingly, the energy recovery device 20 further comprises a second heat load module 25 for receiving the heat energy obtained by the third heat exchanger 241 for utilization.
Referring to fig. 3, in some other embodiments, the second thermal cycle module 24 includes a plurality of third heat exchangers 241, a plurality of sets of third pipes 245 sequentially communicating with the third heat exchangers 241, a third pump 246 and a third valve 247 disposed on each set of third pipes 245, and a third heat transfer medium (not shown), wherein the third heat transfer medium can circulate between any two directly connected third heat exchangers 241 through one set of third pipes 245, so that the heat energy obtained by the second heat exchanger 222 can be further transferred between the plurality of third heat exchangers 241 in a step-by-step manner. Correspondingly, the energy recovery device 20 further includes a plurality of second heat load modules 25 corresponding to the plurality of third heat exchangers 241 one by one, so as to respectively receive the heat energy obtained by each third heat exchanger 241. Therefore, a plurality of different types or/and different powers of thermal loads can be simultaneously arranged in the energy recovery device 20, the recovery utilization rate of the electric quantity of the battery 30 is maximally improved, and the energy recovery device 20 can be further adapted to various batteries 30 with different electric quantities.
Specifically, in this embodiment, the third heat exchanger 241 is a dividing wall type heat exchanger, specifically including a plate type heat exchanger, a straight tube type heat exchanger, or a straight tube type heat exchanger with fins, and the third heat exchanger 241 is made of any one of aluminum, copper, stainless steel, aluminum alloy, or copper alloy; the second pipeline 242 includes a third pipe (not shown) and a fourth pipe (not shown), opposite ends of the third pipe and the fourth pipe are respectively communicated with the second heat exchanger 222 and the third heat exchanger 241, and the second pump 243 and the second valve 244 can be respectively disposed on any one of the third pipe and the fourth pipe; the third pipeline 245 includes a fifth pipe (not shown) and a sixth pipe (not shown), opposite ends of the fifth pipe and the sixth pipe are respectively communicated with the two third heat exchangers 241, and the third pump 246 and the third valve 247 can be respectively disposed on any one of the fifth pipe and the sixth pipe.
More specifically, in this embodiment, the first heat transfer working medium, the second heat transfer working medium, and the third heat transfer working medium are fluids including water, air, or others with better heat conductivity; the first heat load module 23 and the second heat load module 25 may be any one of some energy consuming devices such as a heat pump, an air conditioner, and a water heater;
further, in the present embodiment, the energy recovery device 20 further includes a control module (not shown), and the control module is communicatively connected to each of the dc converters 211, the first pump 224, the first valve 225, the second pump 244, the second valve 245, the third pump 246, and the third valve 247, so as to control the operating states of each element in real time according to different operating conditions.
Furthermore, in this embodiment, the control module is connected to the ethernet network through an ethernet interface, so as to implement a remote control function of the control module, and the dc converter 211, the first pump 224, the first valve 225, the second pump 244, the second valve 245, the third pump 246, and the third valve 247 are all provided with a CAN bus communication interface, so as to implement bridging with the ethernet network through the control module, so as to implement networking operation of each element with a management computer through an enterprise lan.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An energy recovery device for recovering electric energy discharged from a battery when the battery is subjected to a performance test by a battery test device, the energy recovery device comprising:
the heat release module is electrically connected with the battery testing device and used for acquiring electric energy generated during battery discharging and converting the electric energy into heat energy;
the first heat cycle module comprises a first heat exchanger, a second heat exchanger, a first pipeline, a first heat transfer working medium and a first pump, the first heat exchanger is used for acquiring heat energy emitted by the heat release module, the first pipeline is communicated with the first heat exchanger and the second heat exchanger, and the first pump is arranged on the first pipeline and is used for enabling the first heat transfer working medium to circularly flow between the first heat exchanger and the second heat exchanger through the first pipeline; and
a first heat load module for receiving the thermal energy captured by the second heat exchanger.
2. The energy recovery device of claim 1, wherein said first thermal cycle module further comprises a first valve disposed in said first conduit for regulating the flow of said first heat transfer medium in said first conduit.
3. The energy recovery device of claim 2, wherein the heat-releasing module comprises a dc converter and a heat-releasing resistor, and the heat-releasing resistor is electrically connected to the battery testing device through the dc converter.
4. The energy recovery device of claim 3, further comprising:
the second heat cycle module comprises a third heat exchanger, a second pipeline, a second heat transfer working medium, a second pump and a second valve, the second pipeline is communicated with the second heat exchanger and the third heat exchanger, the second pump is arranged on the second pipeline and is used for enabling the second heat transfer working medium to circularly flow between the second heat exchanger and the third heat exchanger through the second pipeline, and the second valve is arranged on the second pipeline and is used for regulating the flow of the second heat transfer working medium in the second pipeline; and
and the second heat load module is used for receiving the heat energy acquired by the third heat exchanger.
5. The energy recovery device of claim 4, wherein the second thermal cycle module further comprises a plurality of the third heat exchangers, a plurality of sets of third pipes sequentially communicating with the third heat exchangers, a third pump and a third valve disposed on each set of the third pipes, and a third heat transfer medium capable of circulating between any two directly connected third heat exchangers through one set of the third pipes;
the energy recovery device includes a plurality of the second heat load modules in one-to-one correspondence with the plurality of the third heat exchangers.
6. The energy recovery device of claim 5 wherein the first, second and third heat transfer mediums comprise water and air.
7. The energy recovery device of claim 5, further comprising a control module communicatively coupled to each of the DC converters, the first pump, the first valve, the second pump, the second valve, the third pump, and the third valve, respectively.
8. A battery test system comprising a battery test apparatus and an energy recovery apparatus according to any one of claims 1 to 7, the energy recovery apparatus being electrically connected to the battery test apparatus.
9. The battery testing system according to claim 8, wherein the battery testing apparatus includes a testing module, a transmission module and a monitoring module, the testing module is used for performing performance testing on the battery, the transmission module is electrically connected to the testing module and the heat releasing module in the energy recovery apparatus respectively, and is used for transmitting the electric energy released by the battery to the heat releasing module when the battery is discharged through the testing module, and the monitoring module is electrically connected to the transmission module and is used for monitoring the electric quantity transmitted by the battery to the heat releasing module through the transmission module.
10. The battery test system according to claim 9, wherein the battery test apparatus includes a plurality of test modules and a plurality of transmission modules electrically connected to the plurality of test modules in a one-to-one correspondence, and the heat releasing module includes a dc converter electrically connected to the plurality of transmission modules in a one-to-one correspondence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021961570.4U CN213715409U (en) | 2020-09-09 | 2020-09-09 | Energy recovery device and battery test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021961570.4U CN213715409U (en) | 2020-09-09 | 2020-09-09 | Energy recovery device and battery test system |
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| CN213715409U true CN213715409U (en) | 2021-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449236A (en) * | 2023-06-16 | 2023-07-18 | 泉州经贸职业技术学院 | Energy storage battery production detection device and method thereof |
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2020
- 2020-09-09 CN CN202021961570.4U patent/CN213715409U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449236A (en) * | 2023-06-16 | 2023-07-18 | 泉州经贸职业技术学院 | Energy storage battery production detection device and method thereof |
| CN116449236B (en) * | 2023-06-16 | 2023-08-29 | 泉州经贸职业技术学院 | Energy storage battery production detection device and method thereof |
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Granted publication date: 20210716 Termination date: 20210909 |