Cleaning device and liquid injection nozzle cleaning equipment

Abstract

The utility model provides a cleaning device and liquid injection nozzle cleaning equipment, and belongs to the technical field of cleaning and batteries. The cleaning device comprises a cleaning block, the cleaning block is provided with a cleaning groove, a liquid inlet channel and a waste liquid channel, the liquid inlet channel surrounds the cleaning groove and is located between an opening of the cleaning groove and the bottom face of the cleaning groove in the first direction, and the first direction is the arrangement direction of the opening of the cleaning groove and the bottom face of the cleaning groove; one end of the liquid inlet channel communicates with the cleaning groove, the other end of the liquid inlet channel penetrates through at least one surface of the cleaning block, one end of the waste liquid channel communicates with the cleaning groove, and the other end of the waste liquid channel penetrates through at least one surface of the cleaning block. By using the cleaning device provided by the embodiment of the invention, the liquid injection nozzle can be cleaned, so that the liquid injection work can be normally carried out, and the yield of batteries is improved.

Description

Technical Field

[0001] This application relates to the technical fields of cleaning and battery, and particularly relates to a cleaning device and a nozzle cleaning device. Background Art

[0002] Energy conservation and emission reduction are the keys to the sustainable development of the automotive industry. Electric vehicles have become an important part of the sustainable development of the automotive industry due to their advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor related to their development.

[0003] The electrolyte of the battery is generally injected into the interior of the battery through an injection device. After the injection is completed, some electrolyte will remain at the injection nozzle of the injection device. The remaining electrolyte may drip from the injection nozzle, affecting the working environment. The electrolyte remaining at the injection nozzle may form crystals, affecting the normal progress of subsequent injection work. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the background art. For this reason, one object of this application is to provide a cleaning device and a nozzle cleaning device, which can clean the injection nozzle.

[0005] An embodiment of the first aspect of this application provides a cleaning device, which includes: a cleaning block having a cleaning groove, a liquid inlet channel and a waste liquid channel. The liquid inlet channel surrounds the cleaning groove. Along a first direction, the liquid inlet channel is located between the opening of the cleaning groove and the bottom surface of the cleaning groove. The first direction is the arrangement direction of the opening and the bottom surface of the cleaning groove. One end of the liquid inlet channel communicates with the cleaning groove, and the other end of the liquid inlet channel penetrates at least one surface of the cleaning block. One end of the waste liquid channel communicates with the cleaning groove, and the other end of the waste liquid channel penetrates at least one surface of the cleaning block.

[0006] In the technical solution of the embodiment of this application, the component to be cleaned is placed in the cleaning groove of the cleaning block, and then cleaning liquid is conveyed into the cleaning groove through the liquid inlet channel. At the same time, the speed of conveying the cleaning liquid into the liquid inlet channel is adjusted so that when the cleaning liquid enters the cleaning groove, it can wash the component to be cleaned in the cleaning groove. After the cleaning is completed, the cleaning liquid is discharged through the waste liquid channel. Using the cleaning device provided by the embodiment of this application can clean the injection nozzle, enabling the injection work to proceed normally and improving the yield of the battery.

[0007] In some embodiments, the liquid inlet channel includes a liquid inlet flow channel, a liquid inlet cavity, and a communication flow channel that are sequentially connected. The liquid inlet cavity surrounds the cleaning groove, the communication flow channel connects the cleaning groove and the liquid inlet cavity, one end of the liquid inlet flow channel is connected to the liquid inlet cavity, and the other end of the liquid inlet flow channel penetrates at least one surface of the cleaning block. During cleaning, the cleaning liquid is transported through the liquid inlet flow channel. The cleaning liquid enters the liquid inlet cavity through the liquid inlet flow channel. Since the liquid inlet cavity surrounds the cleaning groove, the cleaning liquid can surround the cleaning groove. At the same time, the cleaning liquid enters the cleaning groove through the communication flow channel. Multiple communication flow channels can be provided to make the cleaning liquid more evenly distributed in the cleaning groove, and the cleaning effect of the cleaning liquid on the component to be cleaned in the cleaning groove is better.

[0008] In some embodiments, the extension line where the central axis of the communication flow channel is located is not coplanar with the central axis of the cleaning groove, and the central axis of the cleaning groove extends in the first direction. The extension line where the central axis of the communication flow channel is located is not coplanar with the central axis of the cleaning groove, so that the instantaneous velocity of the cleaning liquid flowing from the communication flow channel into the cleaning groove is not directed towards the center of the cleaning groove. The instantaneous velocity of the cleaning liquid has a component flowing towards the side of the cleaning groove, enabling the cleaning liquid to move circumferentially around the side wall of the cleaning groove, that is, to perform circular cleaning on the component to be cleaned located in the cleaning groove, and the cleaning effect is better.

[0009] In some embodiments, the shape of the opening of the cleaning groove and the shape of the bottom surface of the cleaning groove are both circular. For any one communication flow channel, the extension line of the side away from the central axis of the cleaning groove of the communication flow channel is tangent to the side wall of the cleaning groove. During the process of the cleaning liquid flowing from the communication flow channel into the cleaning groove, since the extension line of the side away from the central axis of the cleaning groove of the communication flow channel is tangent to the side wall of the cleaning groove, the instantaneous velocity of the cleaning liquid flowing from the communication flow channel into the cleaning groove has more components flowing towards the side of the cleaning groove, so that the cleaning liquid can move circumferentially around the side wall of the cleaning groove for a longer distance, and the cleaning liquid can perform circular cleaning with the component to be cleaned, and the cleaning effect is better.

[0010] In some embodiments, the extension line where the central axis of the liquid inlet flow channel is located is not coplanar with the central axis of the liquid inlet cavity, and the central axis of the liquid inlet cavity extends in the first direction. The extension line where the central axis of the liquid inlet flow channel is located is not coplanar with the central axis of the liquid inlet cavity, so that the instantaneous velocity of the cleaning liquid flowing from the liquid inlet flow channel into the liquid inlet cavity is not directed towards the center of the liquid inlet cavity. The instantaneous velocity of the cleaning liquid has a component flowing towards the side of the liquid inlet cavity, enabling the cleaning liquid to move circumferentially around the side wall of the liquid inlet cavity. The cleaning liquid is more evenly distributed in the liquid inlet cavity, and the cleaning liquid can enter the communication flow channel more evenly and flow into the cleaning groove.

[0011] In some embodiments, the first end of the connecting flow channel communicates with the cleaning groove, and the second end of the connecting flow channel communicates with the liquid inlet cavity. The orthographic projection of the first end on the first projection plane is located within and does not coincide with the orthographic projection of the second end on the first projection plane. The first projection plane is perpendicular to the extending direction of the connecting flow channel. The cross-section of the first end is smaller than that of the second end. When the cleaning liquid flows from the second end to the first end, the flow rate of the cleaning liquid is the same. The reduction of the cross-section can increase the speed of the cleaning liquid flowing out from the second end, increase the flow speed of the cleaning liquid, and the cleaning liquid flowing at a high speed scours the component to be cleaned, resulting in a better cleaning effect.

[0012] In some embodiments, the number of the connecting flow channels is greater than or equal to 2 and less than or equal to 8, and the multiple connecting flow channels are sequentially and spacedly arranged around the cleaning groove. If the number of the connecting flow channels is small, for example, less than 2, then the cleaning liquid can only flow to the cleaning groove through one connecting flow channel, and the cleaning liquid cannot flow into the cleaning groove evenly, affecting the cleaning effect. If the number of the connecting flow channels is too large, for example, more than 8, on the one hand, more connecting flow channels need to be fabricated, and the fabrication is rather cumbersome. On the other hand, during the flow of the cleaning liquid, the cleaning liquid will flow into the connecting flow channels. Then, along the flowing direction of the cleaning liquid, the connecting flow channels farther away from the liquid inlet flow channel may flow in less cleaning liquid. To ensure that enough cleaning liquid flows into each connecting flow channel and make the cleaning liquid enter the cleaning groove more evenly for better cleaning, the amount of the cleaning liquid needs to be increased, resulting in waste. Therefore, the number of the connecting flow channels is set to be greater than or equal to 2 and less than or equal to 8, which can reduce the waste of the cleaning liquid while the cleaning liquid flows into the cleaning groove evenly.

[0013] In some embodiments, the cleaning device further includes: a sealing ring located at the opening of the cleaning groove. To facilitate placing the liquid injection nozzle in the cleaning groove, the size of the cleaning groove is generally slightly larger than that of the liquid injection nozzle. After the liquid injection nozzle is placed in the cleaning groove, there is a gap between the liquid injection nozzle and the cleaning groove, forming an annular space. If the speed of the cleaning liquid is too fast, the cleaning liquid may splash out from the annular space. The sealing ring is provided to block the opening of the annular space and prevent the cleaning liquid from splashing out.

[0014] In some embodiments, the cleaning groove is configured to place the liquid injection nozzle. The shape of the cleaning groove is frustum-shaped, and the diameter of the opening of the cleaning groove is larger than the diameter of the bottom surface of the cleaning groove. The first included angle between the side wall of the cleaning groove and the central axis of the cleaning groove is larger than the second included angle between the side wall of the liquid injection nozzle and the central axis of the cleaning groove. Since the first included angle is larger than the second included angle, when the cleaning liquid flows from the annular space into the interior of the liquid injection nozzle, the cross-section of the cleaning liquid flow decreases, which can increase the flow speed of the cleaning liquid, and the cleaning liquid can scour the interior of the liquid injection nozzle, improving the cleaning effect.

[0015] In some embodiments, one end of the waste liquid channel penetrates through the bottom surface of the cleaning groove and communicates with the cleaning groove, and the other end of the waste liquid channel penetrates through the surface of the cleaning block along the first direction. During the use of the cleaning device, the opening of the cleaning groove generally faces upward. One end of the waste liquid channel penetrates through the bottom surface of the cleaning groove, and the other end of the waste liquid channel penetrates through the surface of the cleaning block along the first direction, that is, the waste liquid channel is arranged at the bottom of the cleaning groove, so that the cleaning liquid can drain out of the waste liquid channel by itself under the action of gravity after cleaning, which is more convenient.

[0016] In some embodiments, the cleaning block further has a waste liquid cavity. The waste liquid cavity and the cleaning groove are arranged along the first direction. The waste liquid channel penetrates through the waste liquid cavity along the first direction. The orthographic projection of the end of the waste liquid cavity far from the cleaning groove on the second projection plane is located within and does not coincide with the orthographic projection of the end of the waste liquid cavity close to the cleaning groove on the second projection plane. The second projection plane is perpendicular to the first direction. Since the flow rate of the cleaning liquid is relatively fast, when the high-speed flowing cleaning liquid collides with the side wall of the waste liquid cavity, the cleaning liquid will be rebounded. By setting the shape of the waste liquid cavity, the side wall of the waste liquid cavity is inclined. When the cleaning liquid collides with the side wall of the waste liquid cavity, the included angle between the direction of the speed of the cleaning liquid and the side wall of the waste liquid cavity is less than 90°. The rebounded cleaning liquid will not rebound back into the cleaning groove, avoiding secondary pollution to the liquid injection nozzle in the cleaning groove.

[0017] In some embodiments, the cleaning device further includes: an air extraction element, which communicates with the waste liquid channel. After cleaning is completed, the cleaning liquid will drain out through the waste liquid channel, but a small amount of cleaning liquid will remain in the cleaning groove or the waste liquid channel. By extracting the air in the cleaning groove or the waste liquid channel through the air extraction element, the air drives the remaining cleaning liquid to drain out of the cleaning groove or the waste liquid channel, reducing the residue of the cleaning liquid.

[0018] An embodiment of the second aspect of the present application provides a liquid injection nozzle cleaning device. The liquid injection nozzle cleaning device includes the cleaning device in any one of the above embodiments, and the cleaning device is used to clean the liquid injection nozzle.

[0019] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. Description of the Drawings

[0020] In the drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in accordance with the present application and should not be regarded as a limitation on the scope of the present application.

[0021] Figure 1 Structural schematic diagram of a cleaning device according to some embodiments of the present application;

[0022] Figure 2 Structural schematic diagram of a cleaning device according to some embodiments of the present application from another perspective;

[0023] Figure 3 Top view of a cleaning device according to some embodiments of the present application;

[0024] Figure 4 Right view of a cleaning device according to some embodiments of the present application;

[0025] Figure 5 is Figure 4 Cross-sectional view of the A-A plane in

[0026] Figure 6 is Figure 4 Cross-sectional view of the B-B plane in

[0027] Figure 7 is Figure 4 Cross-sectional view of the C-C plane in

[0028] Figure 8 Cross-sectional view of the cooperation of a cleaning groove, a liquid inlet cavity and a communication flow channel provided by an embodiment of the present application;

[0029] Figure 9 Cross-sectional schematic diagram of the cooperation between a cleaning device and a liquid injection nozzle provided by an embodiment of the present application;

[0030] Figure 10 Block diagram of a cleaning device provided by an embodiment of the present application.

[0031] Explanation of reference numerals:

[0032] 100, cleaning device; 200, liquid injection nozzle; 300, annular space; 10, cleaning block; 11, cleaning groove; 12, liquid inlet channel; 13, waste liquid channel; 14, waste liquid cavity; 121, liquid inlet flow channel; 122, liquid inlet cavity; 123, communication flow channel; 1211, first flow channel; 1212, second flow channel; 20, sealing ring; 30, air extraction element. Detailed implementation manners

[0033] Hereinafter, embodiments of the technical solutions of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality of" means more than two, unless otherwise specifically defined.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0038] In the description of the embodiments of this application, the term "a plurality of" means more than two (including two). Similarly, "a plurality of groups" means more than two groups (including two groups), and "a plurality of pieces" means more than two pieces (including two pieces).

[0039] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.

[0040] In the description of the embodiments of the present application, unless otherwise clearly defined and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can also be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0041] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but also widely used in electric transportation such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also constantly increasing.

[0042] The electrolyte of the battery is injected into the interior of the battery through the injection nozzle of the injection device. After the injection is completed, some electrolyte will remain at the injection nozzle, and the remaining electrolyte may drip onto the machine table of the injection device, affecting the working environment. At the same time, the remaining electrolyte may form crystals, affecting the normal progress of subsequent injection work and the yield of the battery.

[0043] The embodiments of the present application provide a cleaning device. The cleaning device includes a cleaning block. The cleaning block has a cleaning groove, a liquid inlet channel, and a waste liquid channel. The liquid inlet channel surrounds the cleaning groove. Along the first direction, the liquid inlet channel is located between the opening of the cleaning groove and the bottom surface of the cleaning groove. The first direction is the arrangement direction of the opening of the cleaning groove and the bottom surface of the cleaning groove. One end of the liquid inlet channel is communicated with the cleaning groove, and the other end of the liquid inlet channel penetrates at least one surface of the cleaning block. One end of the waste liquid channel is communicated with the cleaning groove, and the other end of the waste liquid channel penetrates at least one surface of the cleaning block. Place the component to be cleaned in the cleaning groove of the cleaning block, and then convey the cleaning liquid into the cleaning groove through the liquid inlet channel. At the same time, adjust the speed of conveying the cleaning liquid into the liquid inlet channel so that when the cleaning liquid enters the cleaning groove, it can wash the component to be cleaned in the cleaning groove. After the cleaning is completed, discharge the cleaning liquid through the waste liquid channel. Using the cleaning device provided by the embodiments of the present application can clean the injection nozzle, enabling the injection work to proceed normally and improving the yield of the battery.

[0044] The cleaning device disclosed in the embodiments of the present application can be applied in a battery production system. The cleaning device cleans the injection nozzle after the injection is completed, enabling the injection work to proceed normally and improving the yield of the battery.

[0045] The embodiments of the present application provide a cleaning deviceFigure 1 Schematic structural diagram of a cleaning device according to some embodiments of the present application. Figure 2 Schematic structural diagram of the cleaning device according to some embodiments of the present application from another perspective. Figure 3 Top view of the cleaning device according to some embodiments of the present application. Figure 4 Right view of the cleaning device according to some embodiments of the present application. In combination with Figures 1 to 4 , the cleaning device includes a cleaning block 10. The cleaning block 10 has a cleaning groove 11, a liquid inlet channel 12, and a waste liquid channel 13. The liquid inlet channel 12 surrounds the cleaning groove 11. Along the first direction X, the liquid inlet channel 12 is located between the opening of the cleaning groove 11 and the bottom surface of the cleaning groove 11. The first direction X is the arrangement direction of the opening of the cleaning groove 11 and the bottom surface of the cleaning groove 11. One end of the liquid inlet channel 12 communicates with the cleaning groove 11, and the other end of the liquid inlet channel 12 penetrates at least one surface of the cleaning block 10. One end of the waste liquid channel 13 communicates with the cleaning groove 11, and the other end of the waste liquid channel 13 penetrates at least one surface of the cleaning block 10.

[0046] In the embodiments of the present application, the shape of the cleaning block 10 can be set according to requirements. Exemplarily, the shape of the cleaning block 10 is a cuboid, and the cuboid-shaped cleaning block 10 is easier to place. In other implementation manners, the shape of the cleaning block 10 can also be a cylinder, a prism, or a sphere.

[0047] In the embodiments of the present application, the cleaning groove 11 is used to place the component to be cleaned, and the shape of the cleaning groove 11 can be made according to the shape of the component to be cleaned.

[0048] The electrolyte remaining in the liquid injection nozzle is generally located at the front end of the liquid injection nozzle. The shape of the front end of the liquid injection nozzle is frustum-shaped. The shape of the cleaning groove 11 can be set to frustum-shaped to facilitate placing the liquid injection nozzle. In other implementation manners, the cleaning groove 11 can be set to other shapes, such as cylindrical or prismatic.

[0049] In the embodiments of the present application, that the liquid inlet channel 12 surrounds the cleaning groove 11 means that at least part of the liquid inlet channel 12 surrounds the cleaning groove 11. Since the liquid inlet channel 12 is located between the opening of the cleaning groove 11 and the bottom surface of the cleaning groove 11, that is, the liquid inlet channel 12 surrounds the side wall of the cleaning groove 11.

[0050] One end of the liquid inlet channel 12 communicates with the cleaning groove 11, and the other end of the liquid inlet channel 12 penetrates at least one surface of the cleaning block 10, so that the cleaning liquid can be transported into the liquid inlet channel 12 through the other end of the liquid inlet channel 12 and enter the cleaning groove 11 through the liquid inlet channel 12.

[0051] See Figure 1 and Figure 2 , when the cleaning device is in use, the first direction X can beFigure 1 and Figure 2 in the up - down direction. At this time, the first direction X is the same as the vertical direction, and the "vertical direction" should be understood as a substantially vertical direction. For example, the angle between the vertical direction and the horizontal plane can be 90°, or slightly less than 90°, such as 85°.

[0052] In an embodiment of the present application, when the cleaning device is in use, the opening of the cleaning groove 11 is located on the upper surface of the cleaning block 10, and the other end of the liquid inlet channel 12 can penetrate through another surface of the cleaning block 10. For example, the other end of the liquid inlet channel 12 penetrates through the side surface of the cleaning block 10, or the other end of the liquid inlet channel 12 penetrates through the lower surface of the cleaning block 10.

[0053] One end of the waste liquid channel 13 is communicated with the cleaning groove 11, and the other end of the waste liquid channel 13 penetrates through at least one surface of the cleaning block 10, so that the cleaned cleaning liquid can enter the waste liquid channel 13 through the cleaning groove 11 and be discharged through the waste liquid channel 13.

[0054] In an embodiment of the present application, when the cleaning device is in use, the other end of the waste liquid channel 13 can penetrate through the side surface of the cleaning block 10, or the other end of the waste liquid channel 13 penetrates through the lower surface of the cleaning block 10.

[0055] In an embodiment of the present application, the cleaning liquid can be diethyl carbonate (DEC).

[0056] When using the cleaning device provided by the embodiment of the present application for cleaning, the component to be cleaned can be placed in the cleaning groove 11 of the cleaning block 10, and then the cleaning liquid is conveyed into the cleaning groove 11 through the liquid inlet channel 12. At the same time, the speed of conveying the cleaning liquid into the liquid inlet channel 12 is adjusted so that when the cleaning liquid enters the cleaning groove 11, it can wash the component to be cleaned in the cleaning groove 11. After cleaning, the cleaning liquid is discharged through the waste liquid channel 13. Using the cleaning device provided by the embodiment of the present application can clean the liquid injection nozzle, enabling the liquid injection work to proceed normally and improving the yield of the battery.

[0057] According to some embodiments of the present application, Figure 5 is Figure 4 the cross - sectional view of the A - A plane in Figure 6 is Figure 4 the cross - sectional view of the B - B plane in Figure 7 is Figure 4 the cross - sectional view of the C - C plane in. Combining Figures 5 to 7, the liquid inlet channel 12 includes a liquid inlet flow channel 121, a liquid inlet cavity 122, and a communication flow channel 123 that are connected in sequence. The liquid inlet cavity 122 surrounds the cleaning groove 11. The communication flow channel 123 connects the cleaning groove 11 and the liquid inlet cavity 122. One end of the liquid inlet flow channel 121 is connected to the liquid inlet cavity 122, and the other end of the liquid inlet flow channel 121 penetrates at least one surface of the cleaning block 10.

[0058] In an embodiment of the present application, the shape of the liquid inlet cavity 122 is annular. The annular liquid inlet cavity 122 surrounds the side wall of the cleaning groove 11. Therefore, only the cross-section of the liquid inlet cavity 122 can be seen from the cross-sectional view shown in Figure 5 and Figure 6 .

[0059] In an embodiment of the present application, the shape of the liquid inlet cavity 122 can be circular, that is, both the inner circle and the outer circle of the liquid inlet cavity 122 are circular. In other implementation manners, the shape of the liquid inlet cavity 122 can be other forms. For example, both the inner circle and the outer circle of the liquid inlet cavity 122 are square.

[0060] In an embodiment of the present application, the communication flow channel 123 connects the cleaning groove 11 and the liquid inlet cavity 122. The cleaning liquid can enter the cleaning groove 11 from the liquid inlet cavity 122 through the communication flow channel 123.

[0061] In an embodiment of the present application, during cleaning, the cleaning liquid is transported through the liquid inlet flow channel 121. The cleaning liquid enters the liquid inlet cavity 122 through the liquid inlet flow channel 121. Since the liquid inlet cavity 122 surrounds the cleaning groove 11, the cleaning liquid can surround the cleaning groove 11. At the same time, the cleaning liquid enters the cleaning groove 11 through the communication flow channel 123. Multiple communication flow channels 123 can be provided to make the cleaning liquid more evenly distributed in the cleaning groove 11, and the cleaning effect of the cleaning liquid on the component to be cleaned in the cleaning groove 11 is better.

[0062] According to some embodiments of the present application, referring to Figure 7 , the extension line where the central axis of the communication flow channel 123 is located is not coplanar with the central axis of the cleaning groove 11. The central axis of the cleaning groove 11 extends along the first direction X.

[0063] In an embodiment of the present application, the shape of the middle part of the communication flow channel 123 is generally a regular shape. For example, the shape of the middle part of the communication flow channel 123 is a cylinder, a frustum of a cone, a prism, or a frustum of a pyramid. The central axis of the communication flow channel 123 is the center line of the middle part of the communication flow channel 123.

[0064] In an embodiment of the present application, the shape of the cleaning groove 11 is generally a cylinder, a frustum of a cone, a prism, or a frustum of a pyramid. The central axis of the cleaning groove 11 is the center line of the cleaning groove 11.

[0065] In an embodiment of the present application, the extension line of the central axis of the communication flow channel 123 is not coplanar with the central axis of the cleaning groove 11, so that the instantaneous velocity of the cleaning liquid flowing from the communication flow channel 123 into the cleaning groove 11 is not directed towards the center of the cleaning groove 11. The instantaneous velocity of the cleaning liquid has a component flowing towards the side of the cleaning groove 11, enabling the cleaning liquid to move circumferentially around the side wall of the cleaning groove 11, that is, to perform circular cleaning on the component to be cleaned located in the cleaning groove 11, and the cleaning effect is better.

[0066] In the related art, in order to achieve circular cleaning of the component to be cleaned, a rotating structure is generally provided in the cleaning device. The rotating structure drives the cleaning groove 11 or the component to be cleaned to rotate, making the structure relatively complex, and the rotating structure is prone to damage, increasing the maintenance points. In the cleaning device of the embodiment of the present application, by setting the mutual relationship between the communication flow channel 123 and the cleaning groove 11, the cleaning liquid can perform circular cleaning on the component to be cleaned without the need to set a rotating structure, with a simple structure and reduced maintenance points.

[0067] According to some embodiments of the present application, Figure 8 This is a cross-sectional view of the cooperation of a cleaning groove, a liquid inlet cavity, and a communication flow channel provided by an embodiment of the present application. Refer to Figure 8 , the shape of the opening of the cleaning groove 11 and the shape of the bottom surface of the cleaning groove 11 are both circular. For any communication flow channel 123, the extension line of the side of the communication flow channel 123 far from the central axis of the cleaning groove 11 is tangent to the side wall of the cleaning groove 11.

[0068] Among them Figure 8 This is only a schematic diagram for understanding that the extension line of the side of the communication flow channel 123 far from the central axis of the cleaning groove 11 is tangent to the side wall of the cleaning groove 11.

[0069] In an embodiment of the present application, during the process of the cleaning liquid flowing from the communication flow channel 123 into the cleaning groove 11, since the extension line of the side of the communication flow channel 123 far from the central axis of the cleaning groove 11 is tangent to the side wall of the cleaning groove 11, the instantaneous velocity of the cleaning liquid flowing from the communication flow channel 123 into the cleaning groove 11 has a greater component flowing towards the side of the cleaning groove 11, so that the cleaning liquid can move circumferentially around the side wall of the cleaning groove 11 for a longer distance, and the cleaning liquid can perform circular cleaning on the component to be cleaned, and the cleaning effect is better.

[0070] In Figure 7 and Figure 8 , the dotted line with an arrow represents the flow direction of the cleaning liquid.

[0071] According to some embodiments of the present application, refer to Figure 7, the extension line where the central axis of the liquid inlet channel 121 is located is not coplanar with the central axis of the liquid inlet cavity 122, and the central axis of the liquid inlet cavity 122 extends along the first direction X.

[0072] In the embodiment of the present application, the shape of the middle part of the liquid inlet channel 121 is generally an axisymmetric shape, and the central axis of the liquid inlet channel 121 is the center line of the middle part of the liquid inlet channel 121.

[0073] In the embodiment of the present application, the shape of the liquid inlet cavity 122 is an annular shape, and the central axis of the liquid inlet cavity 122 is the center line of the liquid inlet cavity 122.

[0074] In the embodiment of the present application, the extension line where the central axis of the liquid inlet channel 121 is located is not coplanar with the central axis of the liquid inlet cavity 122, so that the instantaneous velocity of the cleaning liquid flowing from the liquid inlet channel 121 into the liquid inlet cavity 122 is not directed towards the center of the liquid inlet cavity 122. The instantaneous velocity of the cleaning liquid has a component flowing towards the side of the liquid inlet cavity 122, so that the cleaning liquid can move circumferentially around the side wall of the liquid inlet cavity 122. The cleaning liquid is more evenly distributed in the liquid inlet cavity 122, and the cleaning liquid can enter the communication channel 123 more evenly and flow into the cleaning groove 11.

[0075] According to some embodiments of the present application, combined with Figure 7 and Figure 8 , the first end of the communication channel 123 is communicated with the cleaning groove 11, the second end of the communication channel 123 is communicated with the liquid inlet cavity 122, the orthographic projection of the first end on the first projection plane is located within and does not coincide with the orthographic projection of the second end on the first projection plane, and the first projection plane is perpendicular to the extension direction of the communication channel 123.

[0076] In the embodiment of the application, the orthographic projection means that the projection lines are parallel to each other and perpendicular to the projection plane.

[0077] In the embodiment of the present application, the cross-section of the first end is smaller than the cross-section of the second surface. When the cleaning liquid flows from the second end to the first end, the flow rate of the cleaning liquid is the same. The reduction of the cross-section can increase the velocity of the cleaning liquid flowing out of the second end, increase the flow velocity of the cleaning liquid, and the high-speed flowing cleaning liquid flushes the component to be cleaned, and the cleaning effect is better.

[0078] In the embodiment of the present application, the cleaning liquid is injected into the liquid inlet channel 121 through a liquid injection device, and the flow velocity of the cleaning liquid is relatively high, so that the cleaning liquid entering the cleaning groove 11 still has a relatively high velocity and can flush the component to be cleaned in the cleaning groove 11.

[0079] See Figure 5, the liquid inlet channel 121 includes a first channel 1211 and a second channel 1212 that are interconnected. The second channel 1212 connects the liquid inlet cavity 122 and the first channel 1211, and the cross-section of the first channel 1211 is larger than that of the second channel 1212. When the cleaning liquid flows from the first channel 1211 to the second channel 1212, the cross-section decreases, which can increase the speed of the cleaning liquid when it flows out of the first channel 1211, increase the flow speed of the cleaning liquid, and the high-speed flowing cleaning liquid flushes the component to be cleaned, resulting in a better cleaning effect.

[0080] Since the cleaning liquid cleans the component to be cleaned by flushing, the speed of the cleaning liquid can be increased to improve the cleaning effect. The amount of cleaning liquid used can be reduced, and the cost can be lowered.

[0081] According to some embodiments of the present application, the number of the connecting channels 123 is greater than or equal to 2 and less than or equal to 8, and the plurality of connecting channels 123 are sequentially spaced around the cleaning groove 11.

[0082] Exemplarily, the number of the connecting channels 123 is 4, and the 4 connecting channels 123 are sequentially and evenly spaced around the cleaning groove 11.

[0083] In the embodiments of the present application, if the number of the connecting channels 123 is small, for example, the number of the connecting channels 123 is less than 2, then the cleaning liquid can only flow to the cleaning groove 11 through one connecting channel 123, and the cleaning liquid cannot flow evenly into the cleaning groove 11, affecting the cleaning effect. If the number of the connecting channels 123 is too large, for example, the number of the connecting channels 123 is more than 8, on the one hand, more connecting channels 123 need to be made, and the manufacturing is more cumbersome. On the other hand, during the flow of the cleaning liquid, the cleaning liquid will flow into the connecting channels 123. Then, along the direction of the flow of the cleaning liquid, the connecting channels 123 that are farther away from the liquid inlet channel 121 may flow in less cleaning liquid. To ensure that enough cleaning liquid flows into each connecting channel 123 so that the cleaning liquid enters the cleaning groove 11 more evenly and can be better cleaned, the amount of the cleaning liquid needs to be increased, resulting in waste. Therefore, the number of the connecting channels 123 is set to be greater than or equal to 2 and less than or equal to 8, which can reduce the waste of the cleaning liquid while the cleaning liquid flows evenly into the cleaning groove 11.

[0084] According to some embodiments of the present application, see Figure 1 、 Figures 3 to 6 , the cleaning device 100 further includes a sealing ring 20, and the sealing ring 20 is located at the opening of the cleaning groove 11.

[0085] In the embodiments of the present application, a circular groove can be provided at the opening of the cleaning groove 11 and communicated with the cleaning groove 11, so that a step is formed between the circular groove and the cleaning groove 11 for placing the sealing ring 20.

[0086] Exemplarily, the material of the sealing ring 20 may be silicone or rubber.

[0087] In the embodiments of the present application, in order to facilitate placing the liquid injection nozzle in the cleaning groove 11, the size of the cleaning groove 11 is generally slightly larger than that of the liquid injection nozzle. After the liquid injection nozzle is placed in the cleaning groove 11, there is a gap between the liquid injection nozzle and the cleaning groove 11, forming an annular space. If the speed of the cleaning liquid is too fast, the cleaning liquid may splash out from the annular space. The sealing ring 20 is provided to block the opening of the annular space and prevent the cleaning liquid from splashing out.

[0088] According to some embodiments of the present application, Figure 9 is a cross-sectional schematic diagram of the cooperation between a cleaning device and a liquid injection nozzle provided by an embodiment of the present application. Refer to Figure 9 , the cleaning groove 11 is configured to place the liquid injection nozzle 200. The shape of the cleaning groove 11 is frustum-shaped, and the diameter of the opening of the cleaning groove 11 is larger than the diameter of the bottom surface of the cleaning groove 11. The first included angle α between the side wall of the cleaning groove 11 and the central axis of the cleaning groove 11 is greater than the second included angle β between the side wall of the liquid injection nozzle and the central axis of the cleaning groove 11.

[0089] Combined with Figure 3 , Figure 5 , Figure 7 and Figure 9 , when the cleaning liquid flows from the liquid inlet cavity 122 to the cleaning groove 11 through the communication flow channel 123, it will first enter the annular space 300 between the liquid injection nozzle 200 and the cleaning groove 11, and then flow into the interior of the liquid injection nozzle 200 through the annular space 300 to clean the interior of the liquid injection nozzle 200. Figure 9 The dotted line with an arrow in

[0090] In the embodiments of the present application, since the first included angle α is greater than the second included angle β, when the cleaning liquid flows from the annular space 300 to the interior of the liquid injection nozzle, the cross-sectional area of the cleaning liquid flow decreases, which can increase the flow rate of the cleaning liquid, and the cleaning liquid can scour the interior of the liquid injection nozzle 200 to improve the cleaning effect.

[0091] According to some embodiments of the present application, refer to Figure 6 and Figure 9 , one end of the waste liquid channel 13 penetrates the bottom surface of the cleaning groove 11 and communicates with the cleaning groove 11, and the other end of the waste liquid channel 13 penetrates the surface of the cleaning block 10 along the first direction X.

[0092] In an embodiment of the present application, during the use of the cleaning device, the opening of the cleaning groove 11 generally faces upward. One end of the waste liquid channel 13 penetrates through the bottom surface of the cleaning groove 11, and the other end of the waste liquid channel 13 penetrates through the surface of the cleaning block 10 along the first direction X. That is, the waste liquid channel 13 is arranged at the bottom of the cleaning groove 11, so that after cleaning, the cleaning liquid can drain out from the waste liquid channel 13 by itself under the action of gravity, which is more convenient.

[0093] In the related art, during the process of cleaning the liquid injection nozzle 200, the cleaning liquid is always in contact with the liquid injection nozzle 200, and the cleaning liquid is drained after the liquid injection nozzle 200 is taken out of the cleaning groove 11. The cleaning liquid after cleaning will cause secondary pollution to the liquid injection nozzle 200. In the cleaning device in the embodiment of the present application, the cleaning liquid after cleaning drains out from the waste liquid channel 13 by itself under the action of gravity and will not come into contact with the liquid injection nozzle 200 again, avoiding secondary pollution to the liquid injection nozzle 200.

[0094] According to some embodiments of the present application, refer to Figure 6 and Figure 9 , the cleaning block 10 further has a waste liquid cavity 14. The waste liquid cavity 14 and the cleaning groove 11 are arranged along the first direction X. The waste liquid channel 13 penetrates through the waste liquid cavity 14 along the first direction X. The orthographic projection of the end of the waste liquid cavity 14 far from the cleaning groove 11 on the second projection plane is located within and does not coincide with the orthographic projection of the end of the waste liquid cavity 14 close to the cleaning groove 11 on the second projection plane. The second projection plane is perpendicular to the first direction X.

[0095] In the embodiment of the present application, since the orthographic projection of the end of the waste liquid cavity 14 far from the cleaning groove 11 on the second projection plane is located within and does not coincide with the orthographic projection of the end of the waste liquid cavity 14 close to the cleaning groove 11 on the second projection plane, and the second projection plane is perpendicular to the first direction X, that is, the size of the end of the waste liquid cavity 14 far from the cleaning groove 11 is smaller than the size of the end of the waste liquid cavity 14 close to the cleaning groove 11, that is, the side wall of the waste liquid cavity 14 is inclined.

[0096] In the embodiment of the present application, the shape of the waste liquid cavity 14 can be funnel-shaped.

[0097] In the embodiment of the present application, since the flow rate of the cleaning liquid is relatively fast, when the high-speed flowing cleaning liquid collides with the side wall of the waste liquid cavity 14, the cleaning liquid will be rebounded. By setting the shape of the waste liquid cavity 14, the side wall of the waste liquid cavity 14 is inclined. When the cleaning liquid collides with the side wall of the waste liquid cavity 14, the included angle between the direction of the velocity of the cleaning liquid and the side wall of the waste liquid cavity 14 is less than 90°. The rebounded cleaning liquid will not rebound into the cleaning groove 11 again, avoiding secondary pollution to the liquid injection nozzle in the cleaning groove 11.

[0098] According to some embodiments of the present application,Figure 10 A block diagram of a cleaning device provided by an embodiment of the present application. Refer to Figure 10 , the cleaning device 100 further includes an air extraction element 30, and the air extraction element 30 is communicated with the waste liquid channel 13.

[0099] In the embodiment of the present application, the air extraction element 30 can be communicated with the waste liquid channel 13 through a pipeline.

[0100] In the embodiment of the present application, after the cleaning is completed, the cleaning liquid will be discharged through the waste liquid channel 13, but a small amount of cleaning liquid will remain in the cleaning groove 11 or the waste liquid channel 13. By extracting the air in the cleaning groove 11 or the waste liquid channel 13 through the air extraction element 30, the air drives the remaining cleaning liquid to be discharged from the cleaning groove 11 or the waste liquid channel 13, reducing the residue of the cleaning liquid.

[0101] In the embodiment of the present application, before cleaning the liquid injection nozzle, the liquid injection nozzle 200 can be placed in the cleaning groove 11 first, and then the air is extracted through the air extraction element 30. The air can also drive a part of the residual electrolyte in the liquid injection nozzle 200 to be discharged, that is, the liquid injection nozzle is preliminarily cleaned before being cleaned by the cleaning liquid.

[0102] In the embodiment of the present application, after the liquid injection nozzle 200 is placed in the cleaning groove 11, the air can be blown into the cleaning device 100 through the liquid injection nozzle 200 by the air blowing element, and the air can also drive a part of the residual electrolyte in the liquid injection nozzle 200 to be discharged, realizing preliminary cleaning.

[0103] In the embodiment of the present application, after the cleaning liquid cleans the liquid injection nozzle, the air can be blown into the cleaning device 100 through the liquid injection nozzle 200 by the air blowing element, and at the same time, the air in the cleaning groove 11 or the waste liquid channel 13 is extracted through the air extraction element 30. The two are carried out simultaneously, which can further reduce the residue of the cleaning liquid.

[0104] In the embodiment of the present application, after the air extraction element 30 performs the operation of extracting the residual liquid, the liquid injection nozzle 200 can be taken out of the cleaning groove 11 after standing for a period of time, so that part of the residual liquid can be discharged by itself under the action of gravity.

[0105] The embodiment of the present application provides a liquid injection nozzle cleaning device. The liquid injection nozzle cleaning device includes the cleaning device in any one of the above embodiments, and the cleaning device is used to clean the liquid injection nozzle.

[0106] An embodiment of the present application provides a cleaning device, which includes a cleaning block 10, a sealing ring 20, and an air extraction element 30. The cleaning block 10 has a cleaning groove 11, a liquid inlet channel 12, and a waste liquid channel 13. The liquid inlet channel 12 surrounds the cleaning groove 11. Along the first direction X, the liquid inlet channel 12 is located between the opening and the bottom surface of the cleaning groove 11. The first direction X is the arrangement direction of the opening and the bottom surface of the cleaning groove 11. One end of the liquid inlet channel 12 communicates with the cleaning groove 11, and the other end of the liquid inlet channel 12 penetrates at least one surface of the cleaning block 10. One end of the waste liquid channel 13 communicates with the cleaning groove 11, and the other end of the waste liquid channel 13 penetrates at least one surface of the cleaning block 10.

[0107] The sealing ring 20 is located at the opening of the cleaning groove 11, and the air extraction element 30 communicates with the waste liquid channel 13.

[0108] The cleaning groove 11 is configured to place a liquid injection nozzle 200. The shape of the cleaning groove 11 is frustum-shaped, and the diameter of the opening of the cleaning groove 11 is greater than the diameter of the bottom surface of the cleaning groove 11. The first included angle α between the side wall of the cleaning groove 11 and the central axis of the cleaning groove 11 is greater than the second included angle β between the side wall of the liquid injection nozzle and the central axis of the cleaning groove 11.

[0109] The liquid inlet channel 12 includes a liquid inlet flow channel 121, a liquid inlet cavity 122, and a communication flow channel 123 that are sequentially connected. The liquid inlet cavity 122 surrounds the cleaning groove 11. The communication flow channel 123 communicates the cleaning groove 11 and the liquid inlet cavity 122. One end of the liquid inlet flow channel 121 communicates with the liquid inlet cavity 122, and the other end of the liquid inlet flow channel 121 penetrates at least one surface of the cleaning block 10.

[0110] The shape of the opening of the cleaning groove 11 and the shape of the bottom surface of the cleaning groove 11 are both circular. For any one communication flow channel 123, the extension line of the side away from the central axis of the cleaning groove 11 of the communication flow channel 123 is tangent to the side wall of the cleaning groove 11. The extension line where the central axis of the liquid inlet flow channel 121 is located is not coplanar with the central axis of the liquid inlet cavity 122, and the central axis of the liquid inlet cavity 122 extends along the first direction X.

[0111] The first end of the communication flow channel 123 communicates with the cleaning groove 11, and the second end of the communication flow channel 123 communicates with the liquid inlet cavity 122. The orthographic projection of the first end on the first projection plane is located within and does not coincide with the orthographic projection of the second end on the first projection plane. The first projection plane is perpendicular to the extension direction of the communication flow channel 123.

[0112] The number of the communication flow channels 123 is greater than or equal to 2 and less than or equal to 8, and the multiple communication flow channels 123 are sequentially spaced around the cleaning groove 11.

[0113] One end of the waste liquid channel 13 penetrates through the bottom surface of the cleaning groove 11 to communicate with the cleaning groove 11, and the other end of the waste liquid channel 13 penetrates through the surface of the cleaning block 10 along the first direction X. The cleaning block 10 further has a waste liquid cavity 14. The waste liquid cavity 14 and the cleaning groove 11 are arranged along the first direction X. The waste liquid channel 13 penetrates through the waste liquid cavity 14 along the first direction X. The orthographic projection of the end of the waste liquid cavity 14 far from the cleaning groove 11 on the second projection plane is located within and does not coincide with the orthographic projection of the end of the waste liquid cavity 14 close to the cleaning groove 11 on the second projection plane. The second projection plane is perpendicular to the first direction X.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cleaning device, characterized in that: The cleaning device (100) comprises: A cleaning block (10) comprises a cleaning groove (11), a liquid inlet channel (12) and a waste liquid channel (13); the liquid inlet channel (12) surrounds the cleaning groove (11); along a first direction, the liquid inlet channel (12) is located between an opening of the cleaning groove (11) and a bottom surface of the cleaning groove (11); the first direction is the arrangement direction of the opening of the cleaning groove (11) and the bottom surface of the cleaning groove (11); one end of the liquid inlet channel (12) is connected to the cleaning groove (11); the other end of the liquid inlet channel (12) passes through at least one surface of the cleaning block (10); one end of the waste liquid channel (13) is connected to the cleaning groove (11); the other end of the waste liquid channel (13) passes through at least one surface of the cleaning block (10).

2. The cleaning device according to claim 1, characterized in that The liquid inlet channel (12) comprises a liquid inlet channel (121), a liquid inlet cavity (122) and a connecting channel (123) which are connected in sequence; the liquid inlet cavity (122) surrounds the cleaning groove (11); the connecting channel (123) connects the cleaning groove (11) and the liquid inlet cavity (122); one end of the liquid inlet channel (121) is connected to the liquid inlet cavity (122); and the other end of the liquid inlet channel (121) passes through at least one surface of the cleaning block (10).

3. The cleaning device according to claim 2, characterized in that: The extension line of the central axis of the communication flow channel (123) is not coplanar with the central axis of the cleaning groove (11), and the central axis of the cleaning groove (11) extends along the first direction.

4. The cleaning device according to claim 3, characterized in that: The shape of the opening of the cleaning groove (11) and the shape of the bottom surface of the cleaning groove (11) are both circular, and for any one of the connecting flow channels (123), the extension line of the side of the connecting flow channel (123) away from the central axis of the cleaning groove (11) is tangent to the side wall of the cleaning groove (11).

5. The cleaning device according to claim 2, characterized in that: The extension line of the central axis of the liquid inlet channel (121) is not coplanar with the central axis of the liquid inlet cavity (122), and the central axis of the liquid inlet cavity (122) extends along the first direction.

6. The cleaning device according to claim 2, characterized in that: The first end of the connecting flow channel (123) is connected to the cleaning groove (11), and the second end of the connecting flow channel (123) is connected to the liquid inlet cavity (122); the orthographic projection of the first end on the first projection plane is located within the orthographic projection of the second end on the first projection plane and does not overlap; the first projection plane is perpendicular to the extension direction of the connecting flow channel (123).

7. The cleaning device according to claim 2, characterized in that: The number of the communication flow channels (123) is greater than or equal to 2 and less than or equal to 8, and the plurality of communication flow channels (123) are sequentially spaced and surround the cleaning groove (11).

8. The cleaning device according to any one of claims 1 to 7, characterized in that The cleaning device (100) further comprises: A sealing ring (20) is located at the opening of the cleaning groove (11).

9. The cleaning device according to claim 8, characterized in that The cleaning groove (11) is configured to be used for accommodating a liquid injection nozzle, the cleaning groove (11) is in the shape of a truncated cone, the diameter of the opening of the cleaning groove (11) is greater than the diameter of the bottom surface of the cleaning groove (11), and a first angle between the side wall of the cleaning groove (11) and the central axis of the cleaning groove (11) is greater than a second angle between the side wall of the liquid injection nozzle and the central axis of the cleaning groove (11).

10. The cleaning device according to any one of claims 1 to 7, characterized in that One end of the waste liquid channel (13) penetrates the bottom surface of the cleaning groove (11) and is connected to the cleaning groove (11), and the other end of the waste liquid channel (13) penetrates the surface of the cleaning block (10) along the first direction.

11. The cleaning device according to claim 10, characterized in that The cleaning block (10) further comprises a waste liquid cavity (14), the waste liquid cavity (14) and the cleaning groove (11) are arranged along the first direction, the waste liquid channel (13) penetrates the waste liquid cavity (14) along the first direction, the orthographic projection of one end of the waste liquid cavity (14) away from the cleaning groove (11) on the second projection plane is located within the orthographic projection of one end of the waste liquid cavity (14) close to the cleaning groove (11) on the second projection plane and does not overlap, and the second projection plane is perpendicular to the first direction.

12. The cleaning device according to claim 10, characterized in that The cleaning device (100) further comprises: The air suction element (30) is communicated with the waste liquid channel (13).

13. A liquid injection nozzle cleaning device, characterized in that: The liquid injection nozzle cleaning device comprises a cleaning device (100) according to any one of claims 1 to 12, wherein the cleaning device (100) is used for cleaning the liquid injection nozzle.

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