CN111043382A - Vacuum valve adjusting device and vacuum adjusting equipment - Google Patents
Vacuum valve adjusting device and vacuum adjusting equipment Download PDFInfo
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- CN111043382A CN111043382A CN201911317252.6A CN201911317252A CN111043382A CN 111043382 A CN111043382 A CN 111043382A CN 201911317252 A CN201911317252 A CN 201911317252A CN 111043382 A CN111043382 A CN 111043382A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a vacuum valve adjusting device and vacuum adjusting equipment, and relates to the technical field of vacuum adjustment. The vacuum valve adjusting apparatus includes: the driving assembly is used for driving an adjusting knob of the vacuum valve to rotate; and the control module is used for acquiring the output vacuum degree of the vacuum valve in real time, comparing the output vacuum degree with a preset vacuum degree and controlling the operation of the driving assembly according to a comparison result. The vacuum adjusting equipment comprises a vacuum valve, a vacuum pressure gauge and the vacuum valve adjusting device; the driving assembly of the vacuum valve adjusting device is connected with an adjusting knob of the vacuum valve; the vacuum pressure gauge is used for detecting the output vacuum degree of the vacuum valve and feeding the detected output vacuum degree back to the control module, and the control module controls the driving assembly to work according to the output vacuum degree. The invention can realize the automatic adjustment of the output vacuum degree of the vacuum valve and can carry out the smooth switching of various vacuum degrees.
Description
Technical Field
The invention relates to the technical field of vacuum regulation, in particular to a vacuum valve regulating device and vacuum regulating equipment.
Background
The negative pressure formation is a necessary step for generating an SEI (Solid electrolyte interface) film by activating a battery by a lithium battery; negative pressure vacuum is indispensable in the formation of square-shell lithium batteries, and vacuum environments with different vacuum degrees are required to be sequentially provided according to the battery formation process. Traditional vacuum valve mainly is through manual regulation pressure value, only can take out the negative pressure through setting up vacuum numerical value in advance, can't carry out automatically regulated as required, consequently can lead to the lithium cell to become the unable better formation oxide film in the time. Meanwhile, after the vacuum degree is set in advance by the traditional vacuum valve, the multiple vacuum degrees cannot be controlled and output simultaneously, and if the multiple vacuum degrees need to be controlled simultaneously, the control can be realized only through more vacuum valves, so that the cost is wasted and the vacuum valve is unstable.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a vacuum valve adjusting device and vacuum adjusting equipment so as to achieve the effect of automatically adjusting a vacuum valve.
To solve the above problems, the present invention provides:
a vacuum valve adjustment device for adjusting an output vacuum level of a vacuum valve, the vacuum valve adjustment device comprising:
the driving assembly is used for driving an adjusting knob of the vacuum valve to rotate;
and the control module is used for acquiring the output vacuum degree of the vacuum valve in real time, comparing the output vacuum degree with a preset vacuum degree and controlling the operation of the driving assembly according to a comparison result.
Further, when the output vacuum degree is greater than or less than the preset vacuum degree, the control module controls the driving assembly to drive the adjusting knob to rotate, so that the output vacuum degree is equal to the preset vacuum degree.
Further, the driving assembly includes:
a driving device for providing a rotational force;
one end of the transmission shaft is connected with the driving device, and the other end of the transmission shaft is connected with the adjusting knob; the transmission shaft is used for driving the adjusting knob to rotate under the driving of the driving device.
Furthermore, one end of the transmission shaft, which is far away from the driving device, is connected with a connecting block; the connecting block is kept away from the one end of transmission shaft is equipped with the constant head tank, the constant head tank is used for fixing a position adjust knob.
Further, the transmission shaft is a screw.
Furthermore, the vacuum valve adjusting device also comprises a limiting assembly, wherein the limiting assembly comprises a movable assembly and two sets of in-place assemblies;
the movable assembly is in threaded connection with the transmission shaft; the movable assembly is also connected with a guide rod so as to enable the movable assembly to move along the axial direction of the transmission shaft when the transmission shaft rotates;
the two groups of in-place components are arranged at intervals, and the movable component moves between the two groups of in-place components; when the movable assembly moves to any one of the in-position assemblies, the transmission shaft stops rotating so as to prevent the driving assembly from excessively adjusting the vacuum valve.
Further, the movable assembly comprises a movable plate which moves along the axial direction of the transmission shaft;
the two sets of the components in place all comprise a limiting part, when the movable plate moves to any one limiting part, the limiting part prevents the movable plate from moving, and the movable plate reacts on the transmission shaft to enable the transmission shaft to stop rotating.
Further, the movable assembly comprises an induction sheet, and the induction sheet moves along the axial direction of the transmission shaft;
the two sets of the in-place assemblies respectively comprise a position sensor, when the induction sheet moves to any one of the position sensors, the position sensors send signals to the control module, and the control module controls the driving device to stop working.
Furthermore, a switching sleeve is arranged between the movable assembly and the transmission shaft; the adapter sleeve is in threaded fit with the transmission shaft; the movable assembly is connected with the adapter sleeve, and the adapter sleeve drives the movable assembly to move along the axial direction of the transmission shaft.
The invention also provides vacuum adjusting equipment, which comprises a vacuum valve, a vacuum pressure gauge and the vacuum valve adjusting device;
the driving assembly of the vacuum valve adjusting device is connected with an adjusting knob of the vacuum valve, and the driving assembly is used for driving the adjusting knob to rotate so as to adjust the output vacuum degree of the vacuum valve;
the vacuum pressure gauge is used for detecting the output vacuum degree of a vacuum outlet of the vacuum valve and feeding the detected output vacuum degree back to the control module, and the control module controls the driving assembly to work according to the output vacuum degree.
The invention has the beneficial effects that: the vacuum valve adjusting device is used for connecting a vacuum valve and adjusting the output vacuum degree of the vacuum valve; the vacuum valve adjusting device is provided with the driving assembly and the control module, the control module can monitor the output vacuum degree of the vacuum valve in real time, and judge whether to control the driving assembly to work according to the detection result, so that the effect of automatically adjusting the output vacuum degree of the vacuum valve is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a vacuum conditioning apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the base plate in a preferred embodiment of the invention;
FIG. 3 is an exploded view of a part of the vacuum adjusting apparatus according to a preferred embodiment of the present invention;
FIG. 4 is a schematic top view of a vacuum conditioning apparatus according to a preferred embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along the line A-A in FIG. 4;
FIG. 6 shows a schematic view of the construction of the connection block;
FIG. 7 is a schematic view showing an external structure of a vacuum valve;
FIG. 8 is a schematic diagram illustrating the control principle of the vacuum adjusting apparatus according to a preferred embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating the effect of vacuum switching in a prior art vacuum regulating device;
fig. 10 shows a schematic diagram of the effect of vacuum switching of the vacuum regulating device of the present invention.
Description of the main element symbols:
1-a bottom plate; 101-a first scaffold; 102-a second support; 103-a third scaffold; 104-a first stop; 104 a-a support block; 104 b-bolt; 105-a second limiting member; 106-a guide bar; 107-support bars; 2-a drive device; 301-a first coupling; 302-a second coupling; 4-a transmission shaft; 5-a transfer sleeve; 6-a movable plate; 7-a bearing; 8-guide sleeve; 901-a first position sensor; 902-a second position sensor; 10-induction sheet; 11-a transfer shaft; 12-connecting blocks; 1201-positioning groove; 13-a vacuum valve; 1301-adjusting knob; 1301 a-a positioning block; 14-vacuum pressure gauge; 15-vacuum input port; 16-vacuum outlet.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships 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 referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of 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 defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example one
As shown in fig. 1, the embodiment provides a vacuum valve adjusting device, which is mainly used for connecting a vacuum valve to adjust the output vacuum degree of the vacuum valve.
The vacuum valve regulating device comprises a driving assembly and a control module (not shown in the figure) which are connected. The driving assembly is used for driving an adjusting knob of the vacuum valve to rotate. The control module is used for acquiring the output vacuum degree of the vacuum valve in real time, comparing the output vacuum degree with a preset vacuum degree, and controlling the operation of the driving assembly according to a comparison result.
Therefore, the effect that the output vacuum degree of the vacuum valve is automatically adjusted by the vacuum valve adjusting device is achieved.
Example two
As shown in fig. 1 to 5, on the basis of the first embodiment, further, the driving assembly includes a driving device 2 and a transmission shaft 4; one end of the transmission shaft 4 is connected with an output shaft of the driving device 2 through a first coupler 301, and then the driving device 2 drives the transmission shaft 4 to rotate. The other end of the transmission shaft 4 is used for connecting an adjusting knob 1301 of the vacuum valve 13, and the transmission shaft 4 drives the adjusting knob 1301 to rotate.
When the vacuum valve is used, the control module compares the acquired output vacuum degree of the vacuum valve with a preset vacuum degree, when the output vacuum degree is greater than or less than the preset vacuum degree, the control module controls the driving device 2 to work, and then the transmission shaft 4 drives the adjusting knob 1301 of the vacuum valve to rotate, so that the output vacuum degree of the vacuum valve is adjusted, and the output vacuum degree is equal to the preset vacuum degree.
The vacuum valve adjusting device further comprises a bottom plate 1, and the driving device 2 is fixedly arranged at one end of the bottom plate 1 through a first support 101; an output shaft of the driving device 2 passes through the first bracket 101 and then is connected with one end of the first coupler 301.
The middle part of the bottom plate 1 is also provided with a second bracket 102; the second bracket 102 is fixedly mounted on the base plate 1. One end of the transmission shaft 4 passes through the second bracket 102; the second bracket 102 is used for supporting the transmission shaft 4, so that the transmission shaft 4 is prevented from shaking when rotating; at the same time, the connection between the drive shaft 4 and the adjustment knob 1301 is also made more stable. A bearing 7 is disposed between the transmission shaft 4 and the second bracket 102, so that the transmission shaft 4 can rotate smoothly with respect to the second bracket 102.
Further, in the embodiment, one end of the transmission shaft 4 far away from the driving device 2 is connected with one end of the adapter shaft 11; the transmission shaft 4 is connected with the transfer shaft 11 through a second coupling 302; so that the transfer shaft 11 is rotated by the drive shaft 4. The other end of the transfer shaft 11 is fixedly connected with a connecting block 12, and the connecting block 12 is used for connecting the adjusting knob 1301.
In the embodiment shown in fig. 6 and 7, a positioning groove 1201 is provided at an end of the connecting block 12 away from the connecting shaft 11; the positioning groove 1201 is used for positioning the adjusting knob 1301, so that the adjusting knob 1301 rotates synchronously with the connecting block 12 when the adjusting knob 1301 is connected.
In other embodiments, the positioning slot 1201 may be directly disposed at an end of the transmission shaft 4 away from the driving device 2, and the transmission shaft 4 is directly connected to the adjusting knob 1301.
In this embodiment, the driving device 2 is a motor; the transmission shaft 4 is a screw rod, and the screw rod is driven to rotate by a motor.
In other embodiments, the driving device 2 may be further configured as a cylinder-controlled crankshaft transmission device to rotate the transmission shaft 4; the transmission shaft 4 can also directly adopt a structure such as a rotating shaft with a smooth surface.
Further, in an embodiment, the vacuum valve adjusting device further includes a limiting assembly, which is disposed on one side of the driving device 2 close to the transmission shaft 4; the limiting assembly is used for limiting the vacuum valve adjusting device from excessively adjusting the vacuum valve 13. The limiting assembly comprises a movable assembly and two sets of in-place assemblies; the movable component is in threaded connection with the transmission shaft 4; the movable assembly is further connected with a guide rod 106, and the guide rod 106 is fixedly installed between the first bracket 101 and the second bracket 102. Thus, when the transmission shaft 4 rotates, the movable plate assembly does not rotate following the transmission shaft 4, so that the movable plate assembly moves in the axial direction of the transmission shaft 4 when the transmission shaft 4 rotates. The two in-place assemblies are arranged at intervals, and the movable assembly moves between the two groups of in-place assemblies; when the movable assembly moves to any one of the in-position assemblies, which indicates that the vacuum valve adjusting device has adjusted the output vacuum degree of the vacuum valve 13 to the adjusting limit of the vacuum valve 13, the transmission shaft 4 stops rotating to prevent the vacuum valve 13 from exceeding the adjusting limit, and the vacuum valve 13 is prevented from being damaged due to over-adjustment. The vacuum regulation limits of the vacuum valve 13 include a maximum vacuum level limit and a minimum vacuum level limit.
Specifically, in the embodiment, the movable assembly includes the movable plate 6, one in-position assembly includes the first limiting member 104, and the other in-position assembly includes the second limiting member 105. The first limiting member 104 is fixedly mounted at one end of the bottom plate 1 close to the driving device 2; the first limiting member 104 is disposed on a side of the driving device 2 close to the second bracket 102; the first limiting member 104 corresponds to a maximum vacuum degree limit adjusted by the vacuum valve 13. The second limiting member 105 is fixedly mounted on one side of the second bracket 102 close to the driving device 2; the second limit member 105 corresponds to a minimum vacuum limit adjusted by the vacuum valve 13.
The movable plate 6 is sleeved on the transmission shaft 4; the movable plate 6 is located between the first limiting member 104 and the second limiting member 105. And the guide bar 106 is disposed through the movable plate 6. A guide sleeve 8 is arranged between the movable plate 6 and the guide rod 106; the guide sleeve 8 is sleeved on the guide rod 106, and the movable plate 6 is fixedly connected with the guide sleeve 8; the arrangement of the guide sleeve 8 increases the sliding contact surface with the guide rod 106; in the sliding process, compared with the case that the movable plate 6 is directly connected with the guide rod 106, the guide sleeve 8 is not easy to tilt back and forth along the axial direction of the guide rod 106, so that the occurrence of jamming is avoided, and the movable plate 6 is more stable when sliding relative to the guide rod 106.
The movable plate 6 is in threaded fit connection with the transmission shaft 4, so that while the driving device 2 drives the adjusting knob 1301 to rotate, the movable plate 6 moves along the axial direction of the transmission shaft 4, that is, the movable plate 6 moves between the first limiting part 104 and the second limiting part 105.
When the driving device 2 drives the adjusting knob 1301 to rotate to the maximum vacuum degree limit adjustable by the vacuum valve 13, the movable plate 6 moves to the position of the first limiting part 104, the first limiting part 104 prevents the movable plate 6 from moving continuously, and the movable plate 6 reacts on the transmission shaft 4 to prevent the transmission shaft 4 from driving the adjusting knob 1301 to rotate. Similarly, when the driving device 2 drives the adjusting knob 1301 to rotate to the minimum vacuum degree limit adjustable by the vacuum valve 13, the movable plate 6 moves to the position of the second limiting part 105, the second limiting part 105 prevents the movable plate 6 from moving continuously, and the movable plate 6 reacts on the transmission shaft 4 to prevent the transmission shaft 4 from driving the adjusting knob 1301 to rotate. Thus, excessive adjustment of the vacuum valve 13 can be avoided, and damage to the vacuum valve 13 due to excessive adjustment can be avoided.
In other embodiments, the first limiting element 104 corresponds to the minimum vacuum level limit adjusted by the vacuum valve 13, and the second limiting element 105 corresponds to the maximum vacuum level limit adjusted by the vacuum valve 13.
In this embodiment, two sets of first limiting members 104 and two sets of second limiting members 105 are symmetrically disposed on two sides of the transmission shaft 4. Therefore, when the first limiting member 104 or the second limiting member 105 blocks the movable plate 6, the two sides of the movable plate 6 are uniformly stressed, so that the problem of inclined locking is avoided, and the device itself is prevented from being damaged.
The first retaining member 104 includes a supporting block 104a and a bolt 104 b; the supporting block 104a is fixedly installed on the base plate 1, and the bolt 104b is installed on the supporting block 104a toward the direction of the second bracket 102. The second limiting member 105 is also a bolt, and the second limiting member 105 is fixedly mounted on the second bracket 102 toward the driving device 2.
In other embodiments, the first limiting member 104 and the second limiting member 105 can be limited by directly using a baffle, a fixing post, or the like. The number of the first limiting members 104 can also be set to be three, four, or other numbers; the number of the second limiting members 105 may be three, four, or the like.
Further, in the embodiment, an adapter sleeve 5 is further arranged between the movable plate 6 and the transmission shaft 4, and indirect connection is realized through the adapter sleeve 5. The adapter sleeve 5 is sleeved on the transmission shaft 4, and the movable plate 6 is fixedly installed on the adapter sleeve 5. An internal thread matched with the transmission shaft 4 is arranged in the adapter sleeve 5. When the transmission shaft 4 rotates, the adapter sleeve 5 is driven to move axially, and then the movable plate 6 is driven to move. In this embodiment, the adapting sleeve 5 and the transmission shaft 4 are matched and selected to be a ball screw nut pair, so as to reduce the motion resistance between the two.
In other embodiments, the adaptor sleeve 5 and the transmission shaft 4 can be matched with a conventional screw rod and nut to realize transmission.
Further, in the embodiment, the movable assembly further comprises a sensing piece 10; one of the in-position assemblies further includes a first position sensor 901; the other said in-position assembly further comprises a second position sensor 902; the first position sensor 901 and the second position sensor 902 are both electrically connected to the control module.
A support rod 107 is connected between the second bracket 102 and the support block 104 a; the first position sensor 901 and the second position sensor 902 are arranged on the supporting rod 107 side by side; the first position sensor 901 and the second position sensor 902 are disposed at an interval. The first position sensor 901 is disposed at one end of the supporting rod 107 close to the supporting block 104a, and the first position sensor 901 is disposed corresponding to the maximum vacuum degree limit adjusted by the vacuum valve 13. The second position sensor 902 is disposed at an end of the supporting rod 107 close to the second bracket 102, and the second position sensor 902 is disposed corresponding to a minimum vacuum limit of the vacuum valve 13.
The sensing piece 10 is fixedly installed on one side of the movable plate 6 close to the supporting rod 107, when the transmission shaft 4 rotates, the sensing piece 10 moves synchronously along with the movable plate 6, and the sensing piece 10 moves between the first position sensor 901 and the second position sensor 902.
When the driving device 2 drives the adjusting knob 1301 to rotate to the maximum vacuum degree limit adjustable by the vacuum valve 13, the sensing sheet 10 moves to the position of the first position sensor 901, and the sensing sheet 10 triggers the first position sensor 901 to send a corresponding signal to the control module; the control module controls the driving device 2 to stop working, so that the transmission shaft 4 stops rotating, and the adjusting knob 1301 of the vacuum valve 13 stops rotating. Similarly, when the driving device 2 drives the adjusting knob 1301 to rotate to the minimum vacuum degree limit adjustable by the vacuum valve 13, the sensing piece 10 moves to the position of the second position sensor 902, and the sensing piece 10 triggers the second position sensor 902 to send a corresponding signal to the control module; the control module controls the driving device 2 to stop working, so that the transmission shaft 4 stops rotating, and further the adjusting knob 1301 stops rotating. Therefore, the vacuum valve adjusting device is prevented from adjusting the vacuum valve 13 excessively, and the vacuum valve 13 is prevented from being damaged.
In this embodiment, the first position sensor 901 and the second position sensor 902 are infrared sensors.
In other embodiments, the first position sensor 901 and the second position sensor 902 can also be position sensors such as hall sensors; accordingly, the sensor chip 10 is preferably provided with magnetic components to trigger the hall sensor.
In other embodiments, the limiting assembly may further be provided with only the first position sensor 901, the second position sensor 902 and the sensing piece 10, so as to limit the vacuum valve adjusting device and avoid over-adjusting the vacuum valve.
EXAMPLE III
The invention also provides vacuum adjusting equipment which is mainly applied to negative pressure formation of the square lithium battery and provides a required vacuum environment for formation reaction of the lithium battery.
As shown in fig. 7 and 8, the vacuum adjusting apparatus includes a vacuum valve 13, a vacuum pressure gauge 14, and the vacuum valve adjusting device; a driving assembly of the vacuum valve adjusting device is connected with an adjusting knob 1301 of the vacuum valve 13, and the driving assembly drives the adjusting knob 1301 to rotate so as to adjust the output vacuum degree of the vacuum valve 13; the vacuum pressure gauge 14 is used for detecting the output vacuum degree of the vacuum outlet of the vacuum valve 13 and feeding the detected output vacuum degree back to the control module, and the control module controls the driving assembly to work according to the output vacuum degree. The vacuum valve 13 is fixedly mounted on the bottom plate 1 of the vacuum valve adjusting device through a third bracket 103.
In an embodiment, the adjusting knob 1301 is disposed at one end of the vacuum valve 13, and the output vacuum degree of the vacuum valve 13 is controlled by rotating the adjusting knob 1301. And a positioning block 1301a is arranged on the adjusting knob 1301 and is matched with the positioning groove 1201 on the connecting block 12 of the driving component for positioning.
One side of the vacuum valve 13 is provided with a vacuum input port 15, and the other side thereof is provided with a vacuum output port 16; the vacuum input port 15 and the vacuum output port 16 are connected through a vacuum flow passage inside the vacuum valve 13. And a vacuum adjusting component connected with the vacuum flow channel is arranged in the vacuum valve 13, and the vacuum adjusting component adjusts the airflow between the vacuum input port 15 and the vacuum output port 16 in the vacuum flow channel, so that the vacuum degree at the position of the vacuum output port 16 is changed. The vacuum adjusting assembly is connected with the adjusting knob 1301, and the adjusting capability of the vacuum adjusting assembly on the vacuum air flow is adjusted by rotating the adjusting knob 1301, so that the vacuum degree at the position of the vacuum output port 16 is changed.
In this embodiment, the vacuum valve 13 is a vacuum relief valve model VRA2000-8, available from CKD corporation.
In other embodiments, the vacuum valve 13 may be other types of vacuum valves, such as vacuum valves AR10-A to AR40-A from SMC.
When in use, the vacuum input port 15 is used for connecting high vacuum, and the high vacuum is introduced into the vacuum valve 13; the vacuum output port 16 is used for connecting a negative pressure formation reaction chamber. The vacuum valve 13 regulates the pressure of the input high vacuum; the regulated vacuum gas flow is then output from the vacuum output port 16 and supplied to the negative pressure formation reaction chamber. The control module judges whether to control the driving assembly to drive the adjusting knob 1301 to rotate according to the output vacuum degree detected by the vacuum pressure gauge 14, so that the vacuum degree output by the vacuum output port 16 meets the requirement of a negative pressure formation reaction chamber. In this embodiment, through control module control drive assembly drives adjust knob 1301 rotates, realizes the effect of automatically regulated output vacuum, need not operator's manual regulation, can avoid the operating error that manual operation exists, realizes more accurate regulating effect.
When a vacuum environment needs to be provided for a negative pressure formation reaction chamber of a lithium battery, the vacuum environment with low vacuum degree and high vacuum degree needs to be provided in sequence according to the requirements of a negative pressure formation process. Presetting two preset vacuum degrees and micro-positive pressures with different sizes in the control module, namely, the vacuum degrees corresponding to the low preset vacuum degree, the high preset vacuum degree and the micro-positive pressure; and setting a time corresponding to the maintenance of the vacuum degree in the control module. The vacuum input port 15 of the vacuum valve 13 is connected to a vacuum source, and the vacuum output port 16 is connected to an input port of a negative pressure formation reaction chamber.
Starting the vacuum adjusting device; the control module controls the driving device 2 to drive the adjusting knob 1301 to rotate; the vacuum pressure gauge 14 feeds the output vacuum degree at the position of the vacuum output port 16 back to the control module in real time, and the control module compares the received output vacuum degree with the low preset vacuum degree. When the output vacuum degree is not equal to the low preset vacuum degree, the control module controls the driving device 2 to continue working, so as to drive the adjusting knob 1301 of the vacuum valve 13 to rotate, adjust the output vacuum degree of the vacuum valve 13 until the output vacuum degree at the position of the vacuum output port 16 is equal to the low preset vacuum degree, and the control module controls the driving device 2 to stop working.
After the negative pressure formation reaction chamber is maintained for a period of time in a low preset vacuum environment, the control module controls the driving device 2 to drive the adjusting knob 1301 to rotate, and the adjustment is performed to a high preset vacuum degree. The vacuum pressure gauge 14 feeds the output vacuum degree at the position of the vacuum output port 16 back to the control module in real time, and the control module compares the received output vacuum degree with the high preset vacuum degree. When the output vacuum degree is not equal to the high preset vacuum degree, the control module controls the driving device 2 to continue working, so as to drive the adjusting knob 1301 of the vacuum valve 13 to rotate, the output vacuum degree of the vacuum valve 13 is continuously adjusted until the output vacuum degree at the position of the vacuum output port 16 is equal to the high preset vacuum degree, and the control module controls the driving device 2 to stop working.
After the negative pressure formation reaction chamber is maintained for a period of time in a high preset vacuum environment, the control module controls the operation of the driving device 2, and the driving device 2 drives the adjusting knob 1301 to rotate, so that the position of the vacuum output port 16 is switched back to the micro-positive pressure.
As shown in fig. 9, a vacuum environment is provided for the negative pressure formation reaction chamber by the conventional vacuum adjusting device, and manual adjustment is required when the vacuum degree is switched; however, the adjusted vacuum degree needs to be observed in real time in the debugging process so as to observe whether the adjusted vacuum degree reaches the required vacuum degree or not, so that the debugging process is carried out discontinuously; and finally, stepped switching is realized, meanwhile, a large error exists in manual adjustment, and the adjustment precision is about +/-5 Kpa.
As shown in fig. 10, when the vacuum degree switching is realized, the vacuum adjusting device provided by the present invention controls the driving device 2 to automatically adjust through the control module, and the vacuum pressure gauge 14 feeds back the vacuum degree in time without interruption, so that the smooth switching can be realized; meanwhile, the switching precision can be controlled to be about +/-0.5 Kpa.
In other application scenes, the vacuum adjusting equipment provided by the invention can also realize free switching of various vacuum degrees, and an operator sets the required vacuum degree in the control module according to the requirement; the control module sequentially controls the driving device 2 to drive the adjusting knob 1301 to achieve automatic adjustment according to the setting. Of course, the vacuum regulating device provided by the invention can also be applied to other environments requiring vacuum supply.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A vacuum valve adjustment device for adjusting an output vacuum of a vacuum valve, the vacuum valve adjustment device comprising:
the driving assembly is used for driving an adjusting knob of the vacuum valve to rotate;
and the control module is used for acquiring the output vacuum degree of the vacuum valve in real time, comparing the output vacuum degree with a preset vacuum degree and controlling the operation of the driving assembly according to a comparison result.
2. The vacuum valve regulating device of claim 1, wherein when the output vacuum degree is greater than or less than the preset vacuum degree, the control module controls the driving assembly to drive the regulating knob to rotate so that the output vacuum degree is equal to the preset vacuum degree.
3. The vacuum valve adjustment device of claim 1 or 2, wherein the driving assembly comprises:
a driving device for providing a rotational force;
one end of the transmission shaft is connected with the driving device, and the other end of the transmission shaft is connected with the adjusting knob; the transmission shaft is used for driving the adjusting knob to rotate under the driving of the driving device.
4. The vacuum valve adjusting device according to claim 3, wherein a connecting block is connected to one end of the transmission shaft away from the driving device; the connecting block is kept away from the one end of transmission shaft is equipped with the constant head tank, the constant head tank is used for fixing a position adjust knob.
5. The vacuum valve adjustment device of claim 3, wherein the drive shaft is a threaded rod.
6. The vacuum valve adjusting device according to claim 5, further comprising a limiting assembly, wherein the limiting assembly comprises a movable assembly and two sets of in-place assemblies;
the movable assembly is in threaded connection with the transmission shaft; the movable assembly is also connected with a guide rod so as to enable the movable assembly to move along the axial direction of the transmission shaft when the transmission shaft rotates;
the two groups of in-place components are arranged at intervals, and the movable component moves between the two groups of in-place components; when the movable assembly moves to any one of the in-position assemblies, the transmission shaft stops rotating so as to prevent the driving assembly from excessively adjusting the vacuum valve.
7. The vacuum valve adjusting apparatus according to claim 6, wherein the movable assembly includes a movable plate that moves in an axial direction of the transmission shaft;
the two sets of the components in place all comprise a limiting part, when the movable plate moves to any one limiting part, the limiting part prevents the movable plate from moving, and the movable plate reacts on the transmission shaft to enable the transmission shaft to stop rotating.
8. The vacuum valve adjusting device according to claim 6 or 7, wherein the movable assembly comprises a sensing piece which moves along the axial direction of the transmission shaft;
the two sets of the in-place assemblies respectively comprise a position sensor, when the induction sheet moves to any one of the position sensors, the position sensors send signals to the control module, and the control module controls the driving device to stop working.
9. The vacuum valve adjusting device according to claim 6, wherein an adapter sleeve is arranged between the movable assembly and the transmission shaft; the adapter sleeve is in threaded fit with the transmission shaft; the movable assembly is connected with the adapter sleeve, and the adapter sleeve drives the movable assembly to move along the axial direction of the transmission shaft.
10. A vacuum adjusting apparatus, comprising a vacuum valve, a vacuum pressure gauge, and the vacuum valve adjusting device of any one of claims 1 to 9;
the driving assembly of the vacuum valve adjusting device is connected with an adjusting knob of the vacuum valve, and the driving assembly is used for driving the adjusting knob to rotate so as to adjust the output vacuum degree of the vacuum valve;
the vacuum pressure gauge is used for detecting the output vacuum degree of a vacuum outlet of the vacuum valve and feeding the detected output vacuum degree back to the control module, and the control module controls the driving assembly to work according to the output vacuum degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317252.6A CN111043382A (en) | 2019-12-19 | 2019-12-19 | Vacuum valve adjusting device and vacuum adjusting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317252.6A CN111043382A (en) | 2019-12-19 | 2019-12-19 | Vacuum valve adjusting device and vacuum adjusting equipment |
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| CN111043382A true CN111043382A (en) | 2020-04-21 |
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| CN201911317252.6A Pending CN111043382A (en) | 2019-12-19 | 2019-12-19 | Vacuum valve adjusting device and vacuum adjusting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114020060A (en) * | 2022-01-10 | 2022-02-08 | 深圳市铂纳特斯自动化科技有限公司 | Negative pressure vacuum control system for battery formation equipment and automatic control method thereof |
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Application publication date: 20200421 |