Steam heating constant-temperature formation equipment
By using steam heating and fan group circulation heating technology in chemical constant temperature equipment, the existing equipment has solved the problems of high noise, high power consumption and poor stability, and achieved efficient, stable and low-cost constant temperature control.
Patent Information
- Application Number
- CN202420672556.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Existing constant temperature equipment has problems such as high noise, high power consumption, relatively poor accuracy and stability, as well as prone to problems under high voltage and high manual maintenance costs.
The steam heating constant temperature shaping device is adopted, and steam is generated through the steam engine to flow in the heating pipe. The first fan group is used to blow the hot gas in the heating chamber into the constant temperature chamber, and circulate and return through the communication outlet to heat the gas in the cavity to achieve the constant temperature state in the constant temperature chamber.
It achieves high energy conversion efficiency, high temperature accuracy, stable operation and low maintenance costs, and is less noise, low power consumption, and good temperature accuracy and stability compared to traditional equipment.
Smart Images
Figure CN222654021U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery production and testing equipment, in particular to a steam-heated constant-temperature formation device. Background Art
[0002] Lithium batteries have the advantages of high voltage, high specific energy, long charge and discharge life, safety and environmental protection, etc., so they are widely used in various electronic products, portable small appliances, electric vehicles and energy storage systems. The preparation process of lithium batteries is complicated, including stirring, coating, drying, bare cell preparation, packaging and formation, etc. Among them, the formation process is an indispensable process in the preparation process of lithium batteries, and plays a vital role in the performance of lithium batteries. The formation process of lithium batteries is to encapsulate the bare cells into shells, and then quantitatively inject electrolytes, and then perform the first charge, i.e. the first formation, after a period of standing.
[0003] At present, the existing constant temperature equipment for chemical formation is commonly composed of a heating rod and a blower, which has the following problems and disadvantages: the blower is noisy, consumes relatively high power, has relatively poor accuracy and stability, is prone to problems under high pressure, and has high manual maintenance costs. Utility Model Content
[0004] The utility model aims to provide a steam-heated constant temperature chemical formation equipment to solve the problems existing in the above-mentioned prior art, with high energy conversion efficiency, high temperature accuracy, stable operation and low maintenance cost.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a steam-heated constant-temperature formation device, comprising a casing and a steam engine; a constant-temperature cavity and a heating cavity are arranged in the casing; the heating cavity has a connecting inlet and a connecting outlet connected to the constant-temperature cavity, the connecting inlet is located below the connecting outlet, and the connecting inlet and the connecting outlet are both located on a side of the heating cavity close to the constant-temperature cavity; a heating tube is arranged in the heating cavity, the inlet and the outlet of the heating tube are respectively connected with the inlet and the outlet of the steam engine, and the steam engine is used to generate flowing steam; a first exhaust fan group is arranged at the connecting inlet, and the first exhaust fan group can blow the gas in the heating cavity into the constant-temperature cavity; a plurality of needle bed modules are arranged in the constant-temperature cavity, and a bottom plate frame for placing a lithium battery is arranged under each of the needle bed modules.
[0007] Preferably, an exhaust hood is fixedly provided in the constant temperature cavity, the exhaust hood is located above the needle bed module, and the outlet of the exhaust hood is connected to the communication outlet.
[0008] Preferably, a second exhaust fan group is fixedly provided below each lithium battery on the bottom frame, and each of the second exhaust fan groups is located below the first exhaust fan group in the vertical direction, and the second exhaust fan group is used to blow the bottom gas in the constant temperature cavity upward.
[0009] Preferably, the needle bed module includes a probe box rack and multiple probe box assemblies; the probe box assembly includes a probe box controller and a probe box guide fan located at the bottom of the probe box controller; each of the probe box controllers is respectively fixed in the probe box rack, and each of the probe box controllers is provided with two sampling probes at the bottom for connecting to the positive and negative poles of a lithium battery.
[0010] Preferably, a heat-insulating layer is provided on the inner wall of the constant temperature cavity.
[0011] Preferably, the casing is further provided with an external connecting pipe, one end of which is connected to the constant temperature cavity, and the other end of which is connected to the outside, and an opening and closing valve is provided in the external connecting pipe.
[0012] Preferably, the casing has a fixed frame, the fixed frame is fixedly provided with at least one lifting mechanism, the lifting end of the lifting mechanism is fixedly connected to the bottom plate frame, and the lifting end of the lifting mechanism can drive the bottom plate frame to approach or move away from the needle bed module.
[0013] Preferably, the casing is provided with an opening and closing door connected to the constant temperature cavity.
[0014] Preferably, an observation window is provided on the opening and closing door.
[0015] Preferably, the casing is also provided with an equipment control panel, and the equipment control panel is communicatively connected with the steam engine, the first exhaust fan group, each probe box controller and each probe box guide fan.
[0016] Compared with the prior art, the utility model has achieved the following technical effects:
[0017] The steam-heated constant-temperature formation equipment provided by the utility model achieves heating of the gas in the heating chamber by adopting a steam engine to generate steam to flow in the heating tube, and utilizes a first row of fans arranged at the bottom to blow the hot gas in the heating chamber into the constant-temperature chamber, and recirculates and flows back into the heating chamber through the connecting outlet at the top for further heating, thereby achieving the circulation of the hot gas in the constant-temperature chamber, and maintaining a constant temperature state in the constant-temperature chamber; during the circulation process, the hot gas can also utilize the automatic upward movement of the hot gas to achieve uniform passage of the lithium batteries at various positions in the constant-temperature chamber, thereby providing a more stable and accurate temperature environment; the steam heating method can achieve higher temperature control accuracy, more stable and reliable operation, and low maintenance cost; compared with the traditional blower and heating rod method, the steam heating method combined with the first row of fans has low noise, low power consumption, good temperature accuracy and stability; and the separately arranged heating chamber is used to centrally heat the internal gas, and the temperature control in the constant-temperature chamber is more accurate and reliable.
[0018] Furthermore, the exhaust hood can collect the gas at the top of the constant temperature cavity, so that all of it flows into the heating cavity through the connecting outlet to achieve the effect of heating all the gas as much as possible, thereby improving the stability of the temperature in the constant temperature cavity.
[0019] Furthermore, the second row of fans arranged below the lithium battery can concentrate the hot gas blown by the first row of fans and blow it upward, thereby promoting the internal gas flow effect and improving the temperature in the constant temperature cavity to quickly reach the preset effect.
[0020] Furthermore, the probe box guide fan of the needle bed module can stir the airflow in the constant temperature cavity, increase the airflow effect, reduce the accumulation of hot gas under the needle bed module, and improve the temperature balance of various positions in the constant temperature cavity.
[0021] Furthermore, the provision of the thermal insulation layer can ensure the thermal insulation effect of the temperature in the constant temperature cavity and improve the stability of the temperature in the constant temperature cavity.
[0022] Furthermore, the setting of the external connecting pipe can ensure that when the temperature in the constant temperature chamber is too high, by opening the on-off valve, a part of the hot gas in the constant temperature chamber can be discharged, thereby ensuring the constancy of the temperature and pressure in the constant temperature chamber and ensuring safety.
[0023] Furthermore, the lifting mechanism can drive the lithium battery to lift and lower to complete the connection and disconnection with the needle bed module. It has a simple structure and the connection is stable, fast and reliable.
[0024] Furthermore, the arrangement of the opening and closing door facilitates the placement and removal of the lithium battery.
[0025] Furthermore, the setting of the observation window makes it convenient for the operator to timely observe the operating conditions in the constant temperature chamber to ensure the safety of operation.
[0026] Furthermore, the equipment control panel is placed separately from other components to facilitate daily centralized operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 This is a schematic diagram of the overall structure of the steam-heated constant temperature chemical forming equipment provided by the utility model;
[0029] Figure 2 A schematic diagram of the internal structure of the steam-heated constant temperature chemical forming equipment provided by the utility model;
[0030] Figure 3 A schematic diagram of a needle bed module and related connectors in a steam-heated constant temperature forming device provided by the utility model;
[0031] Figure 4 This is a structural schematic diagram of a needle bed module in the steam-heated constant temperature chemical forming equipment provided by the utility model;
[0032] Figure 5 This is a schematic diagram of the bottom structure of the needle bed module in the steam-heated constant temperature chemical forming equipment provided by the utility model.
[0033] In the figure: 100 - steam heating constant temperature chemical forming equipment;
[0034] 10-housing; 11-heating chamber; 12-constant temperature chamber; 13-fixed frame; 14-lifting mechanism; 15-bottom plate frame; 16-external connecting pipe; 17-opening and closing door; 171-observation window; 18-equipment control chamber;
[0035] 20-first row of fans;
[0036] 30-needle bed module; 31-probe box frame; 32-probe box controller; 33-probe box guide fan; 34-sampling probe;
[0037] 40-exhaust hood;
[0038] 50- Second row of fans. DETAILED DESCRIPTION
[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] The utility model aims to provide a steam-heated constant-temperature chemical formation equipment to solve the problems existing in the prior art, with high energy conversion efficiency, high temperature accuracy, stable operation and low maintenance cost.
[0041] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0042] Embodiment 1
[0043] This embodiment provides a steam-heated constant temperature formation device 100, which is mainly but not limited to the production and testing of lithium batteries. Figure 1 to Figure 5 As shown, it includes a casing 10 and a steam engine; a constant temperature cavity 12 and a heating cavity 11 are provided in the casing 10; the heating cavity 11 has a connecting inlet and a connecting outlet connected to the constant temperature cavity 12, the connecting inlet is located below the connecting outlet, and the connecting inlet and the connecting outlet are both located on the side of the heating cavity 11 close to the constant temperature cavity 12; a heating tube is provided in the heating cavity 11, and the inlet and outlet of the heating tube are respectively connected to the inlet and outlet of the steam engine, and the steam engine is used to generate flowing steam; a first exhaust fan group 20 is provided at the connecting inlet, and the first exhaust fan group 20 can blow the gas in the heating cavity 11 into the constant temperature cavity 12; a plurality of needle bed modules 30 are provided in the constant temperature cavity 12, and a bottom plate frame 15 for placing lithium batteries is provided under each needle bed module 30.
[0044] The steam is generated by a steam engine and flows in the heating tube to heat the gas in the heating cavity 11, and the hot gas in the heating cavity 11 is blown into the constant temperature cavity 12 by the first row of fans 20 arranged at the bottom, and then recirculated back to the heating cavity 11 through the connecting outlet at the top for further heating, thereby realizing the circulation of hot gas in the constant temperature cavity 12, so that the constant temperature cavity 12 is kept in a constant temperature state; during the circulation process, the hot gas can also be used to automatically rise to achieve uniform passage of each lithium battery at each position in the constant temperature cavity 12, thereby providing a more stable and accurate temperature environment; the steam heating method can achieve higher temperature control accuracy, more stable and reliable operation, and low maintenance cost; compared with the traditional blower and heating rod method, the steam heating method combined with the first row of fans 20 has low noise, low power consumption, good temperature accuracy and stability; and the separately arranged heating cavity 11 is used to centrally heat the internal gas, and the control of the temperature in the constant temperature cavity 12 is more accurate and reliable.
[0045] Specifically, the steam-heated constant temperature formation equipment 100 of this embodiment is used in a specific battery formation scenario. The constant temperature is normally below 60°C. Multiple devices use unified steam delivery and do not need to be frequently started and stopped like electric heating. The heating efficiency is higher and the operation is more stable.
[0046] For the setting of the heating chamber 11:
[0047] The steam engine is connected to the heating pipe in the heating cavity 11 through accessories such as water pipes, and they are used together to generate heat energy.
[0048] Among them, regarding the structure of the heating tube in the heating cavity 11:
[0049] Specifically, the heating tube is a copper tube or a stainless steel tube welded with elbows and spiraled back and forth. In order to improve the heat transfer efficiency, a special-shaped copper sheet, a threaded shape or a corrugated sheet is added to the outer wall of the tube.
[0050] The number of heating tubes in the heating cavity is determined by the required heating power, and is usually no more than 1 / 3 of the heating cavity 11 , so as to ensure that the wind can flow quickly and heat the casing 11 .
[0051] For the settings inside the constant temperature chamber 12:
[0052] ① An exhaust hood 40 is provided on the upper inner part:
[0053] Among the optional solutions of this embodiment, it is more preferred that Figure 2As shown, an exhaust hood 40 is fixedly arranged in the constant temperature cavity 12, and the exhaust hood 40 is located above the needle bed module 30, and the outlet of the exhaust hood 40 is connected to the communication outlet. The exhaust hood 40 can collect the gas at the top of the constant temperature cavity 12, so that all of it flows into the heating cavity 11 through the communication outlet to achieve the effect of heating all the gas as much as possible, thereby improving the stability of the temperature in the constant temperature cavity 12.
[0054] ② A needle bed module 30 is provided in the middle part:
[0055] Specifically, Figure 2 and Figure 3 As shown, each needle bed module 30 is located on the same horizontal plane and arranged in sequence.
[0056] Specifically, the needle bed module 30 can be connected to the lithium battery on the bottom frame 15 .
[0057] Specifically, the needle bed module 30 is used for charging and discharging the battery and detecting the internal capacity of the battery.
[0058] Among the optional solutions of this embodiment, it is more preferred that Figure 4 and Figure 5 As shown, the needle bed module 30 includes a probe box frame 31 and a plurality of probe box assemblies; the probe box assembly includes a probe box controller 32 and a probe box guide fan 33 located at the bottom of the probe box controller 32; each probe box controller 32 is respectively fixed in the probe box frame 31, and two sampling probes 34 for connecting to the positive and negative electrodes of the lithium battery are provided at the bottom of each probe box controller 32. The probe box guide fan 33 of the needle bed module 30 can stir the airflow in the constant temperature cavity 12, increase the airflow effect, reduce the accumulation of hot gas under the needle bed module 30, and improve the temperature balance of each position in the constant temperature cavity 12.
[0059] Specifically, the probe box controller 32 is used to monitor the internal capacity and other parameters of the battery when the lithium battery is charged and discharged, and is interconnected with the battery tabs through the sampling probe 34 when the battery is charged and discharged.
[0060] Among the optional solutions of this embodiment, it is more preferred that Figure 2 and Figure 3 As shown, the housing 10 has a fixing frame 13, and at least one lifting mechanism 14 is fixedly arranged on the fixing frame 13. The lifting end of the lifting mechanism 14 is fixedly connected to the bottom frame 15, and the lifting end of the lifting mechanism 14 can drive the bottom frame 15 to approach or move away from the needle bed module 30. The lifting mechanism 14 can drive the lithium battery to lift and lower to complete the connection and disconnection with the needle bed module 30, and its structure is simple, and the connection is stable, fast and reliable.
[0061] Specifically, the lifting mechanism 14 can be a lifting hydraulic cylinder, the cylinder body of the lifting hydraulic cylinder is fixed on the fixing frame 13, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the base frame 15; a lifting mechanism 14 is respectively arranged on two opposite sides of the base frame 15.
[0062] ③ The inner bottom is provided with a second row of fans 50:
[0063] Among the optional solutions of this embodiment, it is more preferred that Figure 2 and Figure 3 As shown, a second exhaust fan group 50 is fixedly arranged below each lithium battery on the bottom frame 15, and each second exhaust fan group 50 is located below the first exhaust fan group 20 in the vertical direction, and the second exhaust fan group 50 is used to blow upward the bottom gas in the constant temperature cavity 12. The second exhaust fan group 50 arranged below the lithium battery can concentrate and blow upward the hot gas blown by the first exhaust fan group 20, promote the internal gas flow effect, and improve the effect of quickly reaching the preset temperature in the constant temperature cavity 12.
[0064] For the insulation setting of the constant temperature chamber 12:
[0065] In the optional solution of this embodiment, it is more preferred that a heat preservation layer is fixedly provided on the inner wall of the constant temperature cavity 12. The provision of the heat preservation layer can ensure the heat preservation effect of the temperature in the constant temperature cavity 12 and improve the temperature stability in the constant temperature cavity 12.
[0066] Specifically, the heat-insulating layer is heat-insulating cotton, and the heat-insulating layer is fixedly provided on the inner wall of the area in the entire housing 10 that needs to be kept warm.
[0067] Control of temperature and pressure in the constant temperature chamber 12:
[0068] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the housing 10 is further provided with an external communication pipe 16, one end of which is connected to the constant temperature cavity 12, and the other end of which is connected to the outside, and an opening and closing valve is provided in the external communication pipe 16. The setting of the external communication pipe 16 can ensure that when the temperature in the constant temperature cavity 12 is too high, the opening and closing valve is opened to discharge a part of the hot gas in the constant temperature cavity 12, thereby ensuring the constant temperature and pressure in the constant temperature cavity 12 and ensuring safety.
[0069] To facilitate the placement of lithium batteries and monitoring of the operation process:
[0070] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the housing 10 is provided with an opening and closing door 17 which is in communication with the constant temperature cavity 12. The setting of the opening and closing door 17 facilitates the placement and removal of the lithium battery.
[0071] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, an observation window 171 is provided on the opening and closing door 17. The setting of the observation window 171 is convenient for the operator to observe the operation status in the constant temperature cavity 12 in time to ensure the operation safety.
[0072] To ensure the whole equipment is easy to operate and maintain:
[0073] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the housing 10 is also provided with an equipment control panel, which is in communication with the steam engine, the first row of fans 20, each probe box controller 32 and each probe box guide fan 33. The equipment control panel is arranged separately from other components, which is convenient for daily centralized operation and maintenance.
[0074] Specifically, the housing 10 is composed of a frame and closing panels.
[0075] Specifically, a separate equipment control chamber 18 is provided in the housing 10, and all control buttons and electronic accessories of the steam heating constant temperature chemical forming equipment 100 are gathered in the equipment control chamber 18, and the equipment control panel is arranged on a side panel of one side of the equipment control chamber 18. It is a collection location of equipment signals, and this arrangement is convenient for the operator to perform daily operations, maintenance and repairs.
[0076] Specifically, in addition to being communicated with the above parts, the equipment control panel is also communicated with the second exhaust fan group 50, the lifting mechanism 14 and the opening and closing valves.
[0077] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A steam-heated constant temperature chemical formation equipment, characterized in that: including the casing and the steam engine; The housing has a constant temperature cavity and a heating cavity; the heating cavity has a communication inlet and a communication outlet connected to the constant temperature cavity, the communication inlet is located below the communication outlet, and the communication inlet and the communication outlet are both located on a side of the heating cavity close to the constant temperature cavity; A heating tube is provided in the heating cavity, and the inlet and outlet of the heating tube are respectively connected with the inlet and outlet of the steam engine, and the steam engine is used to generate flowing steam; A first exhaust fan group is provided at the communication inlet, and the first exhaust fan group can blow the gas in the heating cavity into the constant temperature cavity; A plurality of needle bed modules are arranged in the constant temperature cavity, and a bottom plate frame for placing lithium batteries is arranged under each of the needle bed modules.
2. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: An exhaust hood is fixedly arranged in the constant temperature cavity, the exhaust hood is located above the needle bed module, and the outlet of the exhaust hood is communicated with the communication outlet.
3. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: A second exhaust fan group is fixedly provided below each lithium battery on the bottom frame, and each of the second exhaust fan groups is located below the first exhaust fan group in the vertical direction. The second exhaust fan group is used to blow the bottom gas in the constant temperature cavity upward.
4. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: The needle bed module includes a probe box frame and a plurality of probe box components; The probe box assembly includes a probe box controller and a probe box airflow guide fan located at the bottom of the probe box controller; Each of the probe box controllers is fixed in the probe box frame, and two sampling probes for connecting to the positive and negative electrodes of the lithium battery are arranged at the bottom of each of the probe box controllers.
5. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: The inner wall of the constant temperature cavity is provided with a heat-insulating layer.
6. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: The casing is also provided with an external connecting pipe, one end of which is connected with the constant temperature cavity, and the other end of which is connected with the outside world, and an opening and closing valve is arranged in the external connecting pipe.
7. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: A fixing frame is provided in the casing, and at least one lifting mechanism is fixedly arranged on the fixing frame. The lifting end of the lifting mechanism is fixedly connected to the bottom plate frame, and the lifting end of the lifting mechanism can drive the bottom plate frame to approach or move away from the needle bed module.
8. The steam-heated constant temperature chemical formation equipment according to claim 1, characterized in that: The casing is provided with an opening and closing door which is communicated with the constant temperature cavity.
9. The steam-heated constant temperature chemical formation equipment according to claim 8, characterized in that: An observation window is arranged on the opening and closing door.
10. The steam-heated constant temperature chemical formation equipment according to claim 4, characterized in that: The casing is also provided with an equipment control panel, which is communicatively connected with the steam engine, the first exhaust fan group, each probe box controller and each probe box guide fan.