CN217699667U - Feeding screw pump and power battery coating device - Google Patents
Feeding screw pump and power battery coating device Download PDFInfo
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- CN217699667U CN217699667U CN202221508529.0U CN202221508529U CN217699667U CN 217699667 U CN217699667 U CN 217699667U CN 202221508529 U CN202221508529 U CN 202221508529U CN 217699667 U CN217699667 U CN 217699667U
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Abstract
The utility model relates to a power battery technical field provides a feed screw pump and power battery coating device. The feeding screw pump comprises a driving piece, a pump body and a control module, wherein the driving piece is in transmission connection with the pump body, a first flow detection piece is arranged at a discharge end of the pump body, the first flow detection piece is electrically connected with an input end of the control module, and an output end of the control module is electrically connected with the driving piece. The utility model discloses a flow of the discharge end of the first flow detection piece real-time detection pump body to the signal of telecommunication who converts to corresponding is transmitted to control module, and control module adjusts the power of driving piece, and then the flow that the rotational speed adaptation of the regulation and control pump body corresponds thick liquids improves the regulation precision, has guaranteed the stability of screen cloth department areal density, guarantees power battery's quality.
Description
Technical Field
The utility model relates to a power battery technical field especially relates to a feed screw pump and power battery coating device.
Background
At present, the development of new energy automobiles is important, particularly under the driving of the new energy automobiles, the lithium battery industry is rapidly developed, and the key technology of power batteries is mature day by day.
The stability of the coating process surface density of the power battery plays an important role in the performance of the battery, the revolution number of a screw pump is a fixed value when the existing coating process screw pump supplies slurry, the accumulated blockage of a feeding screen is caused, the pressure can be gradually increased, the flow rate of the slurry after screening is reduced, the revolution number of the screw pump is required to be manually increased to ensure the stability of the surface density when the density at the last is reduced, and the revolution number of the screw pump is increased in a step mode instead of linear increase along with the increase of the pressure, so that the fluctuation of the surface density is inevitable. However, the fluctuation of the areal density not only affects the consistency of the battery performance, but also may cause the risk of lithium precipitation, and seriously degrade the quality of the power battery.
SUMMERY OF THE UTILITY MODEL
The utility model provides a feed screw pump and power battery coating unit for the feed screen cloth of screw pump takes place to add up to block up among the solution prior art, leads to the surface density fluctuation, influences the defect of battery quality, realizes the power according to the flow control driving piece of the discharge end of body, and then the rotational speed of the regulation and control pump body, makes the surface density of screen cloth department stable, ensures the battery quality.
The utility model provides a feed screw pump, including the driving piece, the pump body and control module, the driving piece with pump body transmission connects, the discharge end of the pump body is equipped with first flow detection piece, first flow detection piece with control module's input electricity is connected, control module's output with the driving piece electricity is connected.
According to the utility model provides a pair of feed screw pump, pipeline is connected to the discharge gate of the pump body, be equipped with the screen cloth in the pipeline, follow the flow direction of thick liquids in the pipeline, first flow detection spare is located screen cloth low reaches on the pipeline.
According to the utility model provides a pair of feed screw pump, the feed inlet of the pump body is equipped with second flow detection spare, second flow detection spare with control module's input electricity is connected.
According to the utility model provides a pair of feed screw pump, control module includes controller and control panel, the output of controller with the driving piece electricity is connected, control panel's output with the output of first flow detection spare all with the input electricity of controller is connected, control panel is used for setting for the initial operating parameter of driving piece.
According to the utility model provides a pair of feed screw pump, control module still includes the alarm, the alarm with control module's output electricity is connected.
According to the utility model provides a pair of feed screw pump, the output of the pump body is equipped with the die head, the die head is used for the spraying thick liquids.
According to the utility model provides a pair of feed screw pump, first flow detection spare is fluidflowmeter or flow sensor.
According to the utility model provides a pair of feed screw pump, the driving piece sets up to servo motor.
The utility model also provides a power battery coating unit, including thick liquids jar and as above arbitrary the feed screw pump, the discharge gate of thick liquids jar with the feed inlet of the pump body is connected.
According to the utility model provides a pair of power battery coating device, be equipped with the stirring rake in the thick liquids jar.
The utility model provides a feed screw pump, including the driving piece, the pump body and control module, the driving piece with pump body transmission is connected, the discharge end of the pump body is equipped with first flow detection spare, first flow detection spare with control module's input electricity is connected, control module's output with the driving piece electricity is connected, detects the flow of the discharge end of the pump body in real time through first flow detection spare to change the signal of telecommunication transmission to the control module that corresponds, the power of control module adjustment driving piece, and then the flow that the rotational speed adaptation of the regulation and control pump body corresponds the thick liquids, improve the regulation precision, guaranteed the stability of screen cloth department areal density, guarantee power battery's quality.
Further, the power battery coating apparatus according to the present invention includes the above-described feed screw pump, and therefore, the power battery coating apparatus also has various advantages as described above.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a feed screw pump provided by the present invention;
reference numerals are as follows:
100. a drive member; 200. a pump body; 210. a delivery conduit; 220. a first flow rate detecting member; 230. a screen mesh; 240. a second flow rate detecting member; 300. a die head; 400. a slurry tank; 410. and (4) a stirring paddle.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings in the present invention will be combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring now to fig. 1, embodiments of the present invention will be described. It is to be understood that the following description is only exemplary of the present invention and is not intended to limit the present invention in any way.
As shown in fig. 1, the utility model provides a feed screw pump, including driving piece 100, the pump body 200 and control module, driving piece 100 is connected with the transmission of the pump body 200, realizes that driving piece 100 drives the pump body 200 and rotates, and then accomplishes the transport of thick liquids. The output power of the driver 100 is proportional to the rotational speed of the pump body 200.
Further, the discharge end of the pump body 200 is provided with a first flow detection element 220, and the first flow detection element 220 is used for detecting the output flow of the slurry at the discharge end of the pump body 200 in real time, so as to convert the flow value into an electrical signal. The first flow detecting element 220 is electrically connected to an input terminal of the control module, so as to transmit a detected flow electrical signal to the control module. Control module's output is connected with driving piece 100 electricity, and control module judges according to the flow signal of telecommunication of receiving, according to the linear relation of preset flow and rotational speed, and then obtains the rotational speed that the pump body 200 corresponds this flow, sends the instruction to driving piece 100, makes the output increase of driving piece 100, and then improves the rotational speed of the pump body 200, makes the surface density remain stable, improves the regulation precision, guarantees the stability of feed, and then guarantees power battery coating quality.
In some embodiments, the discharge port of the pump body 200 is connected to the delivery pipe 210, and the slurry is conveyed into the delivery pipe 210 by the rotation of the screw of the pump body 200. The screen 230 is disposed in the conveying pipe 210, and the screen 230 is used for filtering the slurry, and as the filtering time of the screen 230 is accumulated, a gradual blocking phenomenon occurs, so that the flow rate of the slurry passing through the screen 230 becomes gradually smaller. Along the flow direction of thick liquids in the conveying pipeline 210, the first flow detection piece 220 is arranged on the conveying pipeline 210 at the downstream of the screen mesh 230, that is to say, the first flow detection piece 220 is used for detecting the flow of the thick liquids filtered by the screen mesh 230 in the conveying pipeline 210, and then the blocking condition of the screen mesh 230 is judged, and then the rotating speed of the screw of the pump body 200 is correspondingly adjusted and improved through the control module, so that the conveying of the stagnated thick liquids in the conveying pipeline 210 is adapted, and the stability of the surface density is ensured.
In some embodiments, the feeding port of the pump body 200 is provided with a second flow detection part 240, and the second flow detection part 240 is electrically connected to the input end of the control module, wherein the second flow detection part 240 is used for monitoring the flow rate of the slurry entering the pump body 200 in real time and transmitting a detection electric signal to the control module.
Specifically, when the detection value of the first flow detection element is zero and the detection value of the second flow detection element 240 is not zero, it indicates that the screen 230 is completely blocked, and the machine needs to be stopped to replace the screen 230; if the value detected by the second flow rate detector 240 is zero, it indicates that there is no slurry in the slurry tank 400 and it is necessary to fill the slurry.
In some embodiments, the control module includes a controller and a control panel, wherein an output of the controller is electrically connected to the driving member 100, an output of the control panel and an output of the first flow sensing member 220 are both electrically connected to an input of the controller, and the control panel is configured to set an initial operating parameter of the driving member 100. It will be appreciated that the control panel is used to manually input initial operating parameters of the driver 100, including the output power of the driver 100. The linear relationship between the slurry flow and the rotation speed of the pump body 200 is preset in the controller, and is specifically set according to the size of the delivery pipe 210, the viscosity of the slurry, and the mesh number of the screen 230. The controller determines the rotation speed of the pump body 200 according to the detection signal of the first flow detection element 220, and then controls and adjusts the output power of the driving element 100 to match the rotation speed of the pump body 200 with the slurry delivery condition, so as to maintain the stability of the surface density.
In one embodiment, the linear relationship between the preset slurry flow rate in the controller and the rotation speed of the pump body 200 is as follows:
Q＝4×e×d×T×n；
in the formula, Q is a flow rate (unit: L/min) detected by the detecting element 220, e is a rotor eccentricity (unit: dm) of the pump body 200, d is a rotor cross-sectional diameter (unit: dm) of the pump body 200, T is 2 times a stator lead (unit: dm) of the pump body 200, i.e., a rotor pitch, and n is a rotation speed (unit: r/min), wherein e, d, and T are known fixed values.
In some embodiments, the control module further includes an alarm, the alarm is electrically connected to the output end of the control module, and specifically, the output end of the controller is electrically connected to the alarm, so as to transmit the alarm command. That is to say, when the detection signal received by the controller from the first flow detecting element 220 or the second flow detecting element 240 is zero, the controller sends an alarm instruction to the alarm, the alarm gives an alarm, and the operator performs maintenance for shutdown maintenance in time.
In some embodiments, the output end of the pump body 200 is provided with the die head 300, and in particular, the die head 300 is disposed at the discharge end of the delivery pipe 210, i.e., downstream of the first flow detection member 220, so as to realize real-time detection of the flow rate of the slurry flowing to the die head 300 by the first flow detection member 220. The die 300 is used to spray the slurry to complete the coating process.
In some embodiments, the first flow detecting member 220 is a liquid flow meter or a flow sensor, and the second flow detecting member 240 can be a liquid flow meter or a flow sensor.
In some embodiments, the actuator 100 is configured as a servo motor, and optionally a stepper motor.
The utility model also provides a power battery coating device, including thick liquids jar 400 and as above arbitrary the feed screw pump, the discharge gate of thick liquids jar 400 is connected with the feed inlet of pump body 200, wherein, thick liquids jar 400 is used for saving the thick liquids, through the rotation of the screw rod of pump body 200, realizes in thick liquids jar 400 thick liquids transport to pipeline 210, and then sprays by die head 300, accomplishes power battery's coating process.
In some embodiments, the stirring paddle 410 is arranged in the slurry tank 400, and the stirring paddle 410 is connected with the output end of the driving motor, so that the driving motor drives the stirring paddle 410 to rotate, and the slurry in the slurry tank 400 is stirred, thereby preventing the slurry from being condensed.
The utility model provides a feed screw pump, including driving piece 100, the pump body 200 and control module, driving piece 100 is connected with the transmission of the pump body 200, the discharge end of the pump body 200 is equipped with first flow detection piece 220, first flow detection piece 220 is connected with control module's input electricity, control module's output is connected with driving piece 100 electricity, the flow through the discharge end of the first flow detection piece 220 real-time detection pump body 200, and change corresponding signal of telecommunication transmission to control module, control module adjusts the power of driving piece 100, and then the flow that the rotational speed adaptation of the regulation and control pump body 200 corresponds the thick liquids, improve the regulation precision, the stability of screen cloth 230 department face density has been guaranteed, guarantee power battery's quality.
Further, the power battery coating apparatus according to the present invention includes the above-described feed screw pump, and therefore, the power battery coating apparatus also has various advantages as described above.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The feeding screw pump is characterized by comprising a driving piece, a pump body and a control module, wherein the driving piece is in transmission connection with the pump body, a first flow detection piece is arranged at a discharge end of the pump body, the first flow detection piece is electrically connected with an input end of the control module, and an output end of the control module is electrically connected with the driving piece.
2. The feed screw pump of claim 1, wherein the discharge port of the pump body is connected to a delivery conduit, the delivery conduit having a screen disposed therein, the first flow sensing element being disposed on the delivery conduit downstream of the screen in the direction of flow of slurry in the delivery conduit.
3. The feed screw pump of claim 1, wherein the feed port of the pump body is provided with a second flow detection element electrically connected to an input of the control module.
4. The feed screw pump of claim 1, wherein the control module includes a controller and a control panel, an output of the controller being electrically connected to the driving member, an output of the control panel and an output of the first flow sensing element both being electrically connected to an input of the controller, the control panel being configured to set initial operating parameters of the driving member.
5. The feed screw pump of claim 4, wherein the control module further comprises an alarm electrically connected to an output of the control module.
6. A feed screw pump according to any one of claims 1 to 5, wherein the output of the pump body is provided with a die for applying the slurry.
7. A feed screw pump according to any one of claims 1 to 5, wherein the first flow sensing element is a liquid flow meter or a flow sensor.
8. Feed screw pump according to any one of claims 1 to 5, wherein the drive is provided as a servo motor.
9. A power battery coating apparatus comprising a slurry tank and a feed screw pump according to any one of claims 1 to 8, the discharge port of the slurry tank being connected to the feed port of the pump body.
10. The power battery coating apparatus of claim 9 wherein a paddle is disposed within the slurry tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221508529.0U CN217699667U (en) | 2022-06-15 | 2022-06-15 | Feeding screw pump and power battery coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221508529.0U CN217699667U (en) | 2022-06-15 | 2022-06-15 | Feeding screw pump and power battery coating device |
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| Publication Number | Publication Date |
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| CN217699667U true CN217699667U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221508529.0U Active CN217699667U (en) | 2022-06-15 | 2022-06-15 | Feeding screw pump and power battery coating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116273551A (en) * | 2023-03-10 | 2023-06-23 | 重庆太蓝新能源有限公司 | Battery paste spraying and coating device, spraying and coating system and coating method |
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2022
- 2022-06-15 CN CN202221508529.0U patent/CN217699667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116273551A (en) * | 2023-03-10 | 2023-06-23 | 重庆太蓝新能源有限公司 | Battery paste spraying and coating device, spraying and coating system and coating method |
| CN116273551B (en) * | 2023-03-10 | 2024-03-01 | 重庆太蓝新能源有限公司 | Battery paste spraying and coating device, spraying and coating system and coating method |
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