EP3557167B1 - Active heating and drying fixture for lithium batteries, and vacuum connection system for a production line - Google Patents
Active heating and drying fixture for lithium batteries, and vacuum connection system for a production line Download PDFInfo
- Publication number
- EP3557167B1 EP3557167B1 EP19020296.0A EP19020296A EP3557167B1 EP 3557167 B1 EP3557167 B1 EP 3557167B1 EP 19020296 A EP19020296 A EP 19020296A EP 3557167 B1 EP3557167 B1 EP 3557167B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fixture
- active heating
- channel
- valve body
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims description 78
- 238000001035 drying Methods 0.000 title claims description 67
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 66
- 229910052744 lithium Inorganic materials 0.000 title claims description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000000523 sample Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
- F26B3/20—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source being a heated surface, e.g. a moving belt or conveyor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/063—Movable containers or receptacles, e.g. carts, trolleys, pallet-boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/042—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying articles or discrete batches of material in a continuous or semi-continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
Definitions
- the automatic valve includes an upper valve body, a lower valve body, an elastic element, and a gasket ring
- the upper valve body is provided with a first channel running through an outer side of the upper valve body and a second channel axially configured and intercommunicated with the first channel
- the lower valve body is provided with a third channel in which the upper valve body is slidably configured
- the elastic element is configured between the upper valve body and the lower valve body to make the upper and the lower valve body stay in a normal-closed state
- the gasket ring is configured between the upper valve body and the lower valve body to seal the first channel when the upper and the lower valve body are turned off
- the third channel is provided with an entry to intercommunicate with the first channel when the upper and the lower valve body are turned on.
- the circuit assembly is configured at the outer wall of a bottom of the fixture body.
- the system further includes a limiting device for limiting the active heating and drying fixture for lithium battery so as to make the automatic valve align with the vacuum pipeline.
- the fixture body 1 of the present invention is provided with the cavity 11 in which multiple receiving slots 12 are configured to receive a plurality of lithium batteries.
- the heating device 2 is configured outside the cavity 11 to transfer the heat to the cavity through the fixture body 1, thereby the lithium batteries in the cavity 11 can be heated.
- the cavity 11 can be sealed; accordingly, the cavity 11 can be evacuated by the automatic valve 6, so that the lithium battery can be dried in a vacuum environment, thereby effectively improving the drying effect.
- the fixture according to the present invention not only has the function of loading the battery, but also has the function of actively heating. During the drying process of the battery, the heating and drying can be directly performed on the fixture, and the large drying oven and the heating module are omitted, thereby simplifying the process and reducing the manufacturing cost.
- a system 200 includes the active heating and drying fixture for lithium battery 100, a transport line 201, a vacuum pipeline 202 and a lifting device 203.
- the active heating and drying fixture for lithium battery 100 is arranged on the transport line 201 to move along with the transport line 201, the automatic valve 6 is arranged on the bottom of the fixture 100 through the gasket ring, and intercommunicated with the inside of fixture 100.
- the vacuum pipeline 202 is arranged at the output end of the lifting device 203 and connected with a vacuum-pumping system, and the lifting device 203 is arranged below the transport line 201 to lift the vacuum pipeline 202, causing the vacuum pipeline 202 to turn on the automatic valve 6 and connect with the automatic valve 6.
- the system 200 further includes a positioning mechanism which has a positioning sleeve 205 and a positioning post 206, one of the positioning sleeve 205 and the positioning post 206 is arranged on the bottom of the fixture 100, and the other of the positioning sleeve 205 and the positioning post 206 is arranged on the output end of the lifting device 203.
- the positioning post 206 is arranged on the output end of the lifting device 203, and the positioning sleeve 205 is arranged on the bottom of the fixture 100, so as to prevent a shift of the fixture 100 to ensure the smooth turn-on of the automatic valve 6.
- the working principle of the system 200 is as follows.
- the carrier platform 2031 descends under the action of the output end of the lifting device 203, causing the fixture to be supported on the carrier platform 2031 again.
- the positioning post 206 is withdrawn from the positioning sleeve 205, the probes 204 leaves the pinhole 31, and the base 2021 leaves the lower valve body 62.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Description
- This application claims the benefit of priority to Chinese Patent Applications No.
201810354607.8, filed on April 19, 2018 201811013445.8, filed on August, 2018 - The invention relates to a fixture, and more particularly to an active heating and drying fixture for lithium battery and a vacuum connection system for production line.
- Moisture has a very important influence on the performance of lithium batteries. In the production process of lithium batteries, the humidity of the environment and the water content of the batteries must be strictly controlled. Under the current process conditions, baking equipment is typically used to control the water content of the battery prior to battery injection. For example, the battery is dried by a drying oven under a baking mode. The basic baking step is: putting the battery into a fixture by using a clamping machine, placing the fixture filled with the batteries into the drying oven by a clamp, and drying the batteries by vacuuming and heating the drying oven.
- By this token, the conventional fixture for lithium battery has a simple function only for loading batteries. In order to dry the batteries, it is necessary to increase accessorial equipments such as a large drying oven and a heating module, which complicates the operation process and increases the cost.
- The invention is defined by an active heating and drying fixture for lithium batteries according to
claim 1 and a vacuum connection system for a production line according toclaim 12. One objective of the present invention is to provide an active heating and drying fixture for lithium battery, which can heat and dry the lithium battery directly, without using a large drying oven and a heating module, thereby simplifying the manufacturing process and reducing the manufacturing cost. - Another objective of the present invention is to provide a vacuum connection system for production line for lifting the active heating and drying fixture for lithium battery and intercommunicating with the fixture and the vacuum pipeline, which can heat and dry the lithium battery directly and simplify the process.
- To achieve the above-mentioned objectives, an active heating and drying fixture for lithium battery includes a fixture body, a heating device, a circuit assembly and an upper cover, the fixture body being provided with a cavity that has a top with an opening and a bottom with multiple receiving slots for receiving lithium batteries, the heating device being configured on the fixture body, the circuit assembly being configured on an outer wall of the fixture body and electrically connected with the heating device, and the upper cover being detachably covered on the cavity to seal the cavity. The active heating and drying fixture further includes an automatic valve intercommunicated with the cavity. The automatic valve includes an upper valve body, a lower valve body, an elastic element, and a gasket ring, the upper valve body is provided with a first channel running through an outer side of the upper valve body and a second channel axially configured and intercommunicated with the first channel, the lower valve body is provided with a third channel in which the upper valve body is slidably configured; the elastic element is configured between the upper valve body and the lower valve body to make the upper and the lower valve body stay in a normal-closed state; the gasket ring is configured between the upper valve body and the lower valve body to seal the first channel when the upper and the lower valve body are turned off; and the third channel is provided with an entry to intercommunicate with the first channel when the upper and the lower valve body are turned on.
- In comparison with the prior art, the fixture body of the present invention is provided with the cavity in which multiple receiving slots are configured to receive a plurality of lithium batteries. Further, the heating device is configured outside the cavity to transfer the heat to the cavity through the fixture body, thereby the lithium batteries in the cavity can be heated. In addition, by means of the upper cover, the cavity can be sealed; accordingly, the cavity can be evacuated by the automatic valve, so that the lithium battery can be dried in a vacuum environment, thereby effectively improving the drying effect. By this token, the fixture according to the present invention not only has the function of loading the battery, but also has the function of active heating. During the drying process of the battery, the heating and drying can be directly performed on the fixture, and the large drying oven and the heating module are omitted, thereby simplifying the process and reducing the manufacturing cost. Before drying the lithium battery, pumping vacuum to the cavity, so that the lithium battery is located in the vacuum environment, which is beneficial to discharge the water and bubble to improve the drying effect.
- Preferably, a gasket ring is configured between the upper cover and an upper edge of the fixture body.
- Preferably, a cross section of the receiving slot is round or square.
- Preferably, the heating device is inserted into the fixture body and located between two receiving slots.
- Preferably, the fixture further includes a temperature sensor electrically connected with the circuit assembly for detecting temperature in the cavity
- Preferably, a thermal barrier layer is surrounded on the fixture body.
- Preferably, the circuit assembly is provided with pinholes through which probes of a control system are inserted to achieve electrical connections.
- Preferably, the circuit assembly is configured at the outer wall of a bottom of the fixture body.
- Preferably, the entry is a fourth channel which is coaxial with the third channel, and a diameter of the fourth channel is larger than that of the third channel.
- Preferably, one end, connected with the third channel, of the fourth channel is tapered.
- Preferably, two gasket rings are configured at an upper end and a lower end of an opening of the first channel.
- Accordingly, a vacuum connection system for production line includes a transport line, a vacuum pipeline, a lifting device and the active heating and drying fixture for lithium battery mentioned above. The active heating and drying fixture for lithium battery is configured on the transport line and moved along with the transport line, the automatic valve is configured on a bottom of the active heating and drying fixture for lithium battery, the vacuum pipeline is configured on an output end of the lifting device, and the lifting device is configured below the transport line to lift the vacuum pipeline which is connected with the automatic valve to turn on the automatic valve.
- Preferably, the system further includes a control system which comprises probes configured at the output end of the lifting device to electrically connected with the pinholes of the active heating and drying fixture for lithium battery.
- Preferably, a positioning mechanism which has a positioning sleeve and a positioning post, wherein one of the positioning sleeve and the positioning post is arranged on the bottom of the active heating and drying fixture for lithium battery, and the other of the positioning sleeve and the positioning post is arranged on the output end of the lifting device.
- Preferably, the output end of the lifting device is provided with a carrier platform on which the vacuum pipeline is configured.
- Preferably, an output end of the vacuum pipeline is provided with a base on which a sealing ring is arranged, and the sealing ring is pressed against the lower valve of the automatic valve when the vacuum pipeline is connected to the automatic valve.
- Preferably, the system further includes a limiting device for limiting the active heating and drying fixture for lithium battery so as to make the automatic valve align with the vacuum pipeline.
- The accompanying drawings facilitate an understanding of the various embodiments of this invention. In such drawings:
-
Fig. 1 is a partial exploded perspective view of an active heating and drying fixture for lithium battery according to a first embodiment of the present invention; -
Fig. 2 is a perspective view of a fixture body of the active heating and drying fixture for lithium battery according to a first embodiment of the present invention; -
Fig. 3 is a perspective view of a bottom of the active heating and drying fixture for lithium battery according to a first embodiment of the present invention; -
Fig. 4 is a perspective view of a fixture body of the active heating and drying fixture for lithium battery according to a second embodiment of the present invention; -
Fig. 5 is a perspective view of a bottom of the active heating and drying fixture for lithium battery according to a second embodiment of the present invention; -
Fig. 6 is a cross sectional view of an automatic valve connected to the active heating and drying fixture for lithium battery according to the present invention; -
Fig. 7 is a cross sectional view of the automatic valve which is turned on; -
Fig. 8 is a cross sectional view of the automatic valve which is turned off; -
Fig. 9 is a cross sectional view of a vacuum connection system for production line according to one embodiment of the present invention; and -
Fig. 10 is a cross sectional view of a vacuum connection system for production line when it's connected according to one embodiment of the present invention. - Referring to
Figs. 1 to 3 , an active heating and drying fixture forlithium battery 100 according to one embodiment of the present invention includes afixture body 1, aheating device 2, and acircuit assembly 3. Thefixture body 1 is provided with acavity 11 that has a top with an opening and a bottom withmultiple receiving slots 12 for receiving lithium battery. Theheating device 2 is configured on thefixture body 1, specifically is located outside thecavity 11 and embedded in the bottom of thefixture body 1. Thecircuit assembly 3 is configured on an outer wall of thefixture body 1 and electrically connected with theheating device 2. - Specifically, as shown in
Fig. 1 , the active heating and drying fixture forlithium battery 100 further includes anupper cover 4 detachably covering on thecavity 11 to seal thecavity 11. Agasket ring 13 is configured between theupper cover 14 and an upper edge of thefixture body 1, so as to ensure the airtightness of the cavity, along with theupper cover 4. Before drying the lithium battery, pumping vacuum to thecavity 11, so that the lithium battery is located in the vacuum environment, which is beneficial to discharge the water and bubble to improve the drying effect. - Referring to
Figs. 2 and3 , the bottom of thefixture body 1 is provided with acircuit slot 14 in which the connection leads between thecircuit assembly 3 and theheating device 12 are hidden, thereby preventing the leads exposure to improve safety. Specifically, the cross section of the receivingslot 12 round which is suitable to small electric battery cores. The receivingslots 12 are arranged in an array, and theheating device 2 is inserted into thefixture body 1 from the outside of thefixture body 1 along a bottom parallel to thefixture body 1, so that theheating device 2 is located between two receivingslots 12. The active heating and drying fixture forlithium battery 100 further includes atemperature sensor 5 electrically connected with thecircuit assembly 3 for detecting temperature in thecavity 11, which is a thermocouple or thermistor. Due to thetemperature sensor 5, the heating temperature in thecavity 11 can be monitored in real time, to achieve full automation for battery drying. Thecircuit assembly 3 is configured at the bottom of thefixture body 1, specifically at the middle of the bottom of thefixture body 1. Thecircuit slots 14 are extended around thecircuit assembly 3 to reach each edge of thefixture body 1, so as to guide the leads to the heater. Thecircuit assembly 3 is provided withpinholes 31 through which probes of a control system are inserted to achieve electrical connections. For example, after the probes of the control system are inserted into thepinholes 31, with a signal outputted by the control system, the heating power of theheating device 2 can be controlled by means of thecircuit assembly 3 and the leads, thereby controlling the temperature of the cavity automatically. - Preferably, a thermal barrier layer (not shown) is surrounded on the
fixture body 1, thereby preventing heat from being dissipated to the outside, and accordingly reducing energy loss during battery baking. - Referring to
Figs. 6-9 , the active heating and drying fixture forlithium battery 100 further includesautomatic valve 6 intercommunicated with thecavity 11 and thecavity pipeline 202. Alternatively, theautomatic valve 6 can be configured at the bottom of thefixture body 1, or on theupper cover 4. In this embodiment, theautomatic valve 6 is configured at the bottom of thefixture body 1. Theautomatic valve 6 includes anupper valve body 61, alower valve body 62, anelastic element 63, and agasket ring 64. - Referring to
Figs. 7 and8 again, the entry is afourth channel 62b which is coaxial with thethird channel 62a, and a diameter of thefourth channel 62b is larger than that of thethird channel 62a. Preferably, one end, connected with the third channel 62s, of thefourth channel 62b is tapered. By setting thefourth channel 62b coaxially with thethird channel 62a, the connections among the channels and thevacuum pipeline 3 are convenient. - Two gasket rings 64 are configured at the upper end and the lower end of an opening of the
first channel 61a, so as to ensure the airtightness. - By comparison with the prior art, the
fixture body 1 of the present invention is provided with thecavity 11 in which multiple receivingslots 12 are configured to receive a plurality of lithium batteries. Further theheating device 2 is configured outside thecavity 11 to transfer the heat to the cavity through thefixture body 1, thereby the lithium batteries in thecavity 11 can be heated. In addition, by means of theupper cover 4, thecavity 11 can be sealed; accordingly, thecavity 11 can be evacuated by theautomatic valve 6, so that the lithium battery can be dried in a vacuum environment, thereby effectively improving the drying effect. By this token, the fixture according to the present invention not only has the function of loading the battery, but also has the function of actively heating. During the drying process of the battery, the heating and drying can be directly performed on the fixture, and the large drying oven and the heating module are omitted, thereby simplifying the process and reducing the manufacturing cost. - Referring to
Figs. 4 and5 , an active heating and drying fixture for lithium battery 100' according to a second embodiment of the present invention is shown. The basic structure in this embodiment is the same with that of the first embodiment, except that, the cross section of the receiving slot 12' is square to suit for square power lithium battery and soft lithium battery, and a wall 1a is arranged between two adjacent receiving slots 12'. The heating device 2' is inserted into the fixture body 1' from the outside of the fixture body 1' along a direction parallel to a bottom of the fixture body 1', so that the heating device 2' is located between two receiving slots 12'. Alternatively, the heating device 2' can be inserted into the fixture body 1' along a direction perpendicular to the bottom of the fixture body 1'. The circuit assembly 3' is configured at the outer wall of the fixture body 1', and the circuit slot is arranged in a cross. The effect of the active heating and drying fixture of the lithium battery of the embodiment is the same as that of the fixture of the first embodiment, and will not be repeated here. - In addition to the above two embodiments, the specific shape of the receiving slots of the fixture body of the present invention can be arranged according to the type, shape and size of the battery, thereby improving the adaptability of the fixture.
- Referring to
Figs. 9 and10 , asystem 200 includes the active heating and drying fixture forlithium battery 100, atransport line 201, avacuum pipeline 202 and alifting device 203. The active heating and drying fixture forlithium battery 100 is arranged on thetransport line 201 to move along with thetransport line 201, theautomatic valve 6 is arranged on the bottom of thefixture 100 through the gasket ring, and intercommunicated with the inside offixture 100. Thevacuum pipeline 202 is arranged at the output end of thelifting device 203 and connected with a vacuum-pumping system, and thelifting device 203 is arranged below thetransport line 201 to lift thevacuum pipeline 202, causing thevacuum pipeline 202 to turn on theautomatic valve 6 and connect with theautomatic valve 6. - Referring to
Figs. 9 and10 , thesystem 200 further includes a control system (not shown) which hasprobes 204 configured on the output end of thelifting device 203 and inserted in thepinholes 31 of the active heating and drying fixture forlithium battery 100 to achieve electrical connection. Specifically, thepinholes 31 are arranged on the bottom of thefixture 100. By the arrangement and the cooperation of theprobes 204 and thepinholes 31, under the lifting power of thelifting device 203 in thetransport line 201, the connection between the control system and thefixture 100 can be achieved, thereby ensuring the normal working of components in thefixture 100, and the structure is simple and convenient. As illustrated, thesystem 200 further includes a positioning mechanism which has apositioning sleeve 205 and apositioning post 206, one of thepositioning sleeve 205 and thepositioning post 206 is arranged on the bottom of thefixture 100, and the other of thepositioning sleeve 205 and thepositioning post 206 is arranged on the output end of thelifting device 203. Specifically, in this embodiment, thepositioning post 206 is arranged on the output end of thelifting device 203, and thepositioning sleeve 205 is arranged on the bottom of thefixture 100, so as to prevent a shift of thefixture 100 to ensure the smooth turn-on of theautomatic valve 6. - The output end of the
vacuum pipeline 202 is provided with abase 2021 on which a sealing ring (not shown) is arranged. After thevacuum pipeline 202 is connected to theautomatic valve 6, the sealing ring is pressed against thelower valve body 62 of theautomatic valve 6. - The output end of the
lifting device 203 is provided with acarrier platform 2031 on which thebase 2021 of thevacuum pipeline 202, theprobes 204 and thepositioning post 206 are arranged. - The
system 200 further includes a limitingdevice 210 for limiting thefixture 100 so as to make theautomatic valve 6 align with thevacuum pipeline 202. - Preferably, the
system 200 further includes a guidingbulge 207 and a guidingsleeve 208. The guidingbulge 207 is arranged on the bottom of thecarrier platform 2031, the guidingsleeve 208 is arranged on thetransport line 201, and the guidingbulge 207 is movably sleeved on the guidingsleeve 208. Alimiter 209 is formed below thecarrier platform 2031, for detecting the descent height of thecarrier platform 2031, thereby controlling the movement of thelifting device 203. - By combining with the
Figs. 9 and10 , the working principle of thesystem 200 is as follows. - The active heating and drying fixtures for
lithium battery 100 are carried at two sides of thetransport line 201, and moved along with thetransport line 201. When limited by the limitingdevice 210, thefixtures 100 are stayed in the current position and aligned with thecarrier platform 2031. At this time, thelower valve body 62 is aligned with thebase 2021 of thevacuum pipeline 202, theprobes 204 are aligned with thepinholes 31, and thepositioning post 206 is aligned with thepositioning sleeve 205. And then, thecarrier platform 2031 is lifted by the output end of thelifting device 203, thepositioning post 206 is inserted into thepositioning sleeve 205, thepinholes 31 are electrically connected to theprobes 204, and thebase 2021 is pressed against thelower valve body 62. In such a way, thefixtures 100 are lifted by thecarrier platform 2031. Meanwhile, thelower valve body 62 slides upwards to compress theelastic element 63, causing the opening of thefirst channel 61a to be located in thefourth channel 62b, thereby thefourth channel 62b is intercommunicated with thesecond channel 61b. As a result, thevacuum pipeline 202 is intercommunicated with thecavity 11 of thefixture 100, so that thecavity 11 of thefixture 100 can be pumped by the vacuum pumping device connected with thevacuum pipeline 202. - After the drying process of the
fixture 100 is completed, thecarrier platform 2031 descends under the action of the output end of thelifting device 203, causing the fixture to be supported on thecarrier platform 2031 again. At this time, thepositioning post 206 is withdrawn from thepositioning sleeve 205, theprobes 204 leaves thepinhole 31, and thebase 2021 leaves thelower valve body 62. Meanwhile, thelower valve body 62 slides downwards relative to thelower valve body 61, under the spring action of theelastic element 63, which causes the opening of thefirst channel 61a slide into thethird channel 62a, and the opening of thefirst channel 61a disconnect with thefourth channel 62b, so that the vacuum pipeline disconnects with thecavity 11 of thefixture 100, that is, thecavity 11 of thefixture 100 is in a sealed status. Finally, thefixture 100 is released from the limitingdevice 210 and is transported by thetransport line 201 continually. - Since the
automatic valve 6 is arranged on the bottom of thefixture 100, and theautomatic valve 6 can be turned on or turned off automatically by means of the lifting power of thelifting device 203 on thetransport line 201; further, the connection between theprobes 204 and thepinholes 31 is achieved, thereby ensuring the normal working of the components inside thefixture 100. In addition, the structure of the present invention is quite simple, which reduces the arrangement of electromagnetic valves on one hand, and achieves automatic control one the other hand.
Claims (17)
- An active heating and drying fixture for lithium batteries (100), comprising a fixture body (1), a heating device (2), a circuit assembly (3) and an upper cover (4), the fixture body (1) being provided with a cavity (11) that has a top with an opening and a bottom with multiple receiving slots (12) for receiving lithium batteries, the heating device (2) being configured on the fixture body (1), the circuit assembly (3) being configured on an outer wall of the fixture body (1) and electrically connected with the heating device (2), and the upper cover (4) being detachably covered on the cavity (11) to seal the cavity (11);.
wherein the active heating and drying fixture for lithium battery (100) further comprises an automatic valve (6) intercommunicated with the cavity (11), the automatic valve (6) includes an upper valve body (61), a lower valve body (62), an elastic element (63), and a gasket ring (64), the upper valve body (61) is provided with a first channel (61a) running through an outer side of the upper valve body (61) and a second channel (61b) axially configured and intercommunicated with the first channel (61a), the lower valve body (62) is provided with a third channel (62a) in which the upper valve body (61) is slidably configured; the elastic element (63) is configured between the upper valve body (61) and the lower valve body (62) to make the upper and the lower valve body (61, 62) stay in a normal-closed state; the gasket ring (64) is configured between the upper valve body (61) and the lower valve body (62) to seal the first channel (61a) when the upper and the lower valve body (61, 62) are turned off; and the third channel (62a) is provided with an entry to intercommunicate with the first channel (61a) when the upper and the lower valve body (61, 62) are turned on. - The active heating and drying fixture for lithium 1 batteries according to claim 1, wherein another gasket ring (13) is configured between the upper cover (4) and an upper edge of the fixture body (1).
- The active heating and drying fixture for lithium batteries according to claim 1, wherein a cross section of the receiving slot (12) is round or square.
- The active heating and drying fixture for lithium batteries according to claim 3, wherein the heating device (2) is inserted into the fixture body (1) and located between two receiving slots (12).
- The active heating and drying fixture for lithium batteries according to claim 1, further comprising a temperature sensor (5) electrically connected with the circuit assembly (3) for detecting temperature in the cavity (11).
- The active heating and drying fixture for lithium batteries according to claim 1, wherein a thermal barrier layer is surrounded on the fixture body (1).
- The active heating and drying fixture for lithium batteries according to claim 1, wherein the circuit assembly (3) is provided with pinholes (31) through which probes of a control system are inserted to achieve electrical connections.
- The active heating and drying fixture for lithium batteries according to claim 1, wherein the circuit assembly (3) is configured at the outer wall of a bottom of the fixture body (1).
- The active heating and drying fixture for lithium batteries according to claim 1, wherein the entry is a fourth channel (62b) which is coaxial with the third channel (62a), and a diameter of the fourth channel (62b) is larger than that of the third channel (62a).
- The active heating and drying fixture for lithium batteries according to claim 9, wherein one end, connected with the third channel (62a), of the fourth channel (62b) is tapered.
- The active heating and drying fixture for lithium batteries according to claim 1, wherein two gasket rings (64) are configured at an upper end and a lower end of an opening of the first channel (61a).
- A vacuum connection system for a production line (200), comprising a transport line (201), a vacuum pipeline (202), a lifting device (203) and the active heating and drying fixture for lithium battery (100) according to any one of claims1-11, wherein the active heating and drying fixture for lithium battery (100) is configured on the transport line (201) and moved along with the transport line (201), the automatic valve (6) is configured on a bottom of the active heating and drying fixture for lithium battery (100), the vacuum pipeline (202) is configured on an output end of the lifting device (203), and the lifting device (203) is configured below the transport line (201) to lift the vacuum pipeline (202) which is connected with the automatic valve (6) to turn on the automatic valve (6).
- The vacuum connection system for a production line according to claim 12, further comprising a control system which comprises probes (204) configured at the output end of the lifting device (203) to electrically connected with the pinholes (31) of the active heating and drying fixture for lithium battery (100).
- The vacuum connection system for a production line according to claim 12, further comprising a positioning mechanism which has a positioning sleeve (205) and a positioning post (206), wherein one of the positioning sleeve (205) and the positioning post (206) is arranged on the bottom of the active heating and drying fixture for lithium battery (100), and the other of the positioning sleeve (205) and the positioning post (206) is arranged on the output end of the lifting device (203).
- The vacuum connection system for a production line according to any one of claims 12-14, wherein the output end of the lifting device (203) is provided with a carrier platform (2031) on which the vacuum pipeline (202) is configured.
- The vacuum connection system for a production line according to claim 12, wherein an output end of the vacuum pipeline (202) is provided with a base (2021) on which a sealing ring is arranged, and the sealing ring is pressed against the lower valve body (62) of the automatic valve (6) when the vacuum pipeline (202) is connected to the automatic valve (6).
- The vacuum connection system for a production line according to claim 12, further comprising a limiting device (210) for limiting the active heating and drying fixture for lithium battery (100) so as to make the automatic valve (6) align with the vacuum pipeline (202).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810354607.8A CN108507296A (en) | 2018-04-19 | 2018-04-19 | Lithium battery active heat drying jig |
CN201811013445.8A CN108916409B (en) | 2018-08-31 | 2018-08-31 | Automatic valve and logistics line vacuum butt joint system |
Publications (2)
Publication Number | Publication Date |
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EP3557167A1 EP3557167A1 (en) | 2019-10-23 |
EP3557167B1 true EP3557167B1 (en) | 2021-01-06 |
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Application Number | Title | Priority Date | Filing Date |
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EP19020296.0A Active EP3557167B1 (en) | 2018-04-19 | 2019-04-18 | Active heating and drying fixture for lithium batteries, and vacuum connection system for a production line |
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EP (1) | EP3557167B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109458791B (en) * | 2018-12-21 | 2023-11-10 | 深圳市信宇人科技股份有限公司 | Battery or battery material rapid drying method, small-capacity heat conduction type vacuum drying device and intelligent drying system thereof |
CN110833981A (en) * | 2019-11-06 | 2020-02-25 | 江苏大族展宇新能源科技有限公司 | Drying oven structure of lithium battery coating machine |
CN113540572B (en) * | 2021-06-04 | 2023-01-17 | 安徽千航新能源科技有限公司 | Lithium battery aging and heating system |
CN115682639A (en) * | 2022-10-10 | 2023-02-03 | 浙江三和智能装备有限公司 | Baking production line for small soft-package battery |
CN116960469B (en) * | 2023-08-02 | 2024-04-26 | 中山市宏唯自动化科技有限公司 | Lithium battery baking and drying method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104482739B (en) * | 2014-11-28 | 2017-06-06 | 毛铁军 | A kind of baking vacuum standing machine for producing soft-package battery |
CN205718340U (en) * | 2016-04-22 | 2016-11-23 | 深圳市腾达工业自动设备有限公司 | Contact battery heated jig |
CN106643109A (en) * | 2016-11-04 | 2017-05-10 | 深圳市新伟创实业有限公司 | Improved special clamp for contact type lithium battery drying oven |
CN107917581A (en) * | 2017-10-10 | 2018-04-17 | 深圳市鹏翔运达机械科技有限公司 | Mobile vacuum drying production line |
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