Spraying hanger

Abstract

The utility model discloses a spraying hanging tool which comprises a hanging rod extending in the first direction, a spraying device, a spraying device and a spraying device. The outer side of the hanging rod is coated with the insulating part; the fixing part is fixed on the hanging rod, and the fixing part is used for installing and fixing a part to be sprayed. According to the spraying hanging tool, by arranging the insulating part, the hanging rod can be insulated from the outside, and then the situation that the hanging rod adsorbs coating particles can be reduced, so that the utilization rate of powder can be increased, and the spraying cost of the part to be sprayed is reduced; and meanwhile, the cleaning difficulty of the hanging rod can be reduced, and the cleaning convenience of the hanging rod is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a spraying hanger. Background Technology

[0002] In related technologies, battery casing manufacturing requires insulation treatment. Currently, the traditional method for insulating the outer surface of aluminum casings is to apply a blue film. However, this method is not only cumbersome but also results in poor surface uniformity, failing to meet current requirements. Therefore, an insulating spraying method has emerged. Electrostatic spraying utilizes a high-voltage electrostatic field to direct negatively charged paint particles in the opposite direction of the electric field, adsorbing them onto the surface of the workpiece. To achieve the desired electrostatic spraying effect, the spraying rod must ensure proper grounding of the workpiece to form an effective electrostatic field. Currently, most spraying rods are metal, which leads to significant powder absorption in the electric field, resulting in substantial powder loss, low powder utilization, and increased spraying costs. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a spraying hanger that can improve powder utilization and reduce the cost of spraying the parts to be sprayed; simultaneously, it can also reduce the difficulty of cleaning the hanger and improve its ease of cleaning.

[0004] An embodiment of this application provides a spraying hanger, which includes: a hanging rod extending along a first direction; an insulating member covering the outside of the hanging rod; and a fixing member fixed to the hanging rod for mounting and fixing the workpiece to be sprayed.

[0005] In the above technical solution, by setting an insulating component, the hanging rod can be insulated from the outside, thereby reducing the adsorption of paint particles on the hanging rod itself, which can improve the utilization rate of powder and reduce the cost of spraying the parts to be coated; at the same time, it can also reduce the difficulty of cleaning the hanging rod and improve the convenience of cleaning the hanging rod.

[0006] In some embodiments, the fastener has a first through hole extending through the fastener in a first direction, the hanging rod passes through the first through hole and is fixedly connected to the fastener, and the insulating member at least completely covers the outer surface of the portion of the hanging rod exposed outside the fastener.

[0007] In the above technical solution, by setting an insulating component to at least completely cover the outer surface of the part of the hanging rod exposed outside the fixing component, the exposed part of the hanging rod can be insulated, thereby reducing the probability of dust, paint particles or other impurities adhering to the hanging rod, thus improving the cleanliness of the hanging rod.

[0008] In some embodiments, a portion of the insulating element extends into the first through-hole, and the insulating element is configured to block the first through-hole.

[0009] In the above technical solution, by setting a portion of the insulating component to extend into the first through hole, the insulation area of ​​the hanging rod can be increased, thereby further reducing the dust absorption of the hanging rod and improving the ease of maintenance and cleaning of the hanging fixture; by setting the insulating component to block the first through hole, dust can be prevented from entering the fixing component through the first through hole and accumulating in the fixing component, thereby improving the ease of maintenance and cleaning of the hanging fixture.

[0010] In some embodiments, a portion of the insulating element extends into the first through hole, and the hanging rod is interference-fitted with the first through hole through the insulating element.

[0011] In the above technical solution, by setting a portion of the insulating component to extend into the first through hole, and by interfering with the first through hole through the insulating component, the first through hole can be blocked by the insulating component, thereby further preventing powder from entering the fixing component from the first through hole. This reduces the amount of powder stored in the fixing component and the amount of powder absorbed on the hanging rod. At the same time, it can further improve the connection stability between the hanging rod and the fixing component and reduce the risk of the fixing component falling off.

[0012] In some embodiments, the insulating element is an insulating sleeve, which is fitted on the radial outer side of the hanging rod. There are multiple insulating elements, which are arranged at intervals along a first direction. The fixing element is arranged between two adjacent insulating elements.

[0013] In the above technical solution, by setting the insulating component as an insulating sleeve, the assembly difficulty of the insulating component and the hanging rod can be reduced. At the same time, when the insulating component is damaged, it can be replaced individually without replacing the entire hanging rod, thereby reducing maintenance costs. In addition, the insulating component being formed as an insulating sleeve can also ensure the grounding requirement of the workpiece in the electrostatic spraying process while solving the problem of powder absorption by the hanging rod. By setting multiple insulating components, when some insulating components are damaged, it is possible to replace the faulty part individually without replacing the entire hanging rod, thereby reducing maintenance costs and time.

[0014] In some embodiments, the device further includes a connector connected to a fixing member, the fixing member being used to fix the workpiece to be sprayed via the connector.

[0015] In the above technical solution, by setting a connector, there is no connection between the fixing part and the part to be sprayed. Therefore, it is not necessary to consider whether the size between the fixing part and the part to be sprayed is suitable. Only the size of the connector needs to be adjusted, thereby reducing the complexity of the spraying fixture design.

[0016] In some embodiments, the fastener and the connector are detachably connected.

[0017] In the above technical solution, by setting the fixing parts and connecting parts to be detachably connected, the parts to be sprayed can be quickly fixed and removed, which can greatly save the time of loading and unloading parts on the spraying hanger, thereby improving the spraying efficiency.

[0018] In some embodiments, the fastener and the connector are connected by magnetic attraction.

[0019] In the above technical solution, by setting the fixing parts and connecting parts to be connected by magnetic attraction, time and labor can be saved when it is necessary to adjust or replace the workpiece, thereby further improving production efficiency. At the same time, the number of parts can be reduced, thereby simplifying the overall structure of the hanger and reducing the overall manufacturing cost of the spraying hanger.

[0020] In some embodiments, the fixing member has a first magnetic attractor and the connecting member has a second magnetic attractor, and the fixing member and the connecting member are magnetically attracted by the first magnetic attractor and the second magnetic attractor.

[0021] In the above technical solution, by setting the first magnetic suction component and the second magnetic suction component, the accuracy of the docking between the fixing component and the connecting component can be improved, thereby improving the accuracy and stability of the installation of the fixing component and the connecting component.

[0022] In some embodiments, the fixing member is provided with a limiting member, and the fixing member is fixedly connected to the hanging rod through the limiting member.

[0023] In the above technical solution, by setting a limiting component on the fixing component, the fixing component is fixedly connected to the hanging rod through the limiting component, so that the hanging rod can be fixedly connected to the fixing component without adding other parts. In this way, the overall structure of the spraying hanger can be simplified and the assembly complexity of the spraying hanger can be reduced.

[0024] In some embodiments, a limiting hole is formed on the limiting member, and the fixing member also has a limiting pin. The hanging rod passes through the limiting hole and is fixedly connected to the limiting member by the limiting pin.

[0025] In the above technical solution, by setting the hanging rod to pass through the limiting hole and to be fixedly connected to the limiting component by the limiting pin, the stability of the connection between the fixing component and the hanging rod can be increased, thereby improving the reliability of the hanging component.

[0026] In some embodiments, the limiting element is a magnetic element, which is magnetically connected to the hanging rod, and the connecting element and the fixing element are magnetically connected through the magnetic element.

[0027] In the above technical solution, by setting the limiting component as a magnetic component, and magnetically connecting the limiting component with the hanging rod, the connection convenience between the fixing component and the hanging rod can be improved, thereby further improving the assembly efficiency of the spraying hanger; by setting the connecting component and the fixing component to be magnetically connected through the magnetic component, the number of magnetic components used can be reduced, thereby further simplifying the overall structure of the spraying hanger and reducing the overall manufacturing cost of the spraying hanger.

[0028] In some embodiments, the part to be coated is the housing of a battery cell, with one side of the housing formed as an open opening in a second direction, and the connector is configured to cover the open opening of the housing, wherein the second direction intersects with the first direction.

[0029] In the above technical solution, by configuring the connector to be suitable for sealing the open opening of the housing, it is possible to effectively prevent paint particles or other impurities from entering the housing, thereby reducing the probability of the housing being contaminated or damaged.

[0030] In some embodiments, an exhaust channel is formed inside the hanging rod, a vent hole communicating with the exhaust channel is formed on the peripheral wall of the hanging rod, and a first exhaust hole communicating with the opening of the housing is formed on the connector, the first exhaust hole being connected to the vent hole.

[0031] In the above technical solution, by setting an exhaust channel, a vent hole and a first exhaust hole, the balance of air pressure inside and outside the shell can be maintained, thereby effectively reducing the internal pressure difference caused by temperature changes and thus reducing the risk of shell deformation.

[0032] In some embodiments, a second vent hole is formed on the fixing member, the first vent hole is connected to the vent hole through the second vent hole, and / or, a water collection groove is formed on the side of the connector facing the fixing member, the water collection groove extending in a ring around the circumference of the first vent hole.

[0033] In the above technical solution, by setting a second vent hole on the fixing component, and the first vent hole being connected to the vent hole through the second vent hole, the gas flow path from the inside of the shell to the external environment can be unobstructed, thereby further reducing the risk of shell deformation; by setting a water collection tank, condensate generated from the gas discharged from the vent hole can be effectively collected, thereby preventing condensate from entering the subsequent venting channel or re-entering the shell and causing problems such as electrical short circuits or corrosion.

[0034] In some embodiments, the fastener has a positioning groove recessed toward the side of the hanging rod, and at least a portion of the connector engages within the positioning groove.

[0035] In the above technical solution, by setting a positioning groove, the connector can be accurately positioned in the predetermined position, thereby reducing installation errors and improving the consistency of the hanging position and the hanging efficiency.

[0036] In some embodiments, the connector includes: a connecting plate that fits into and is adapted to the shape of a positioning groove; and a positioning protrusion that is connected to the side of the connecting plate opposite to the bottom wall of the positioning groove, the positioning protrusion being adapted to fit into the opening of the housing to connect the housing to the connector.

[0037] In the above technical solution, by setting the connector, including the connecting plate and the positioning protrusion, the assembly between the connector and the housing and the fixing parts can be made simpler and faster, thereby improving the installation speed of the hanger.

[0038] In some embodiments, the side surface of the connecting plate facing the positioning protrusion is adapted to abut against the side end face of the open opening of the housing, and in a second direction, the height dimension of the groove is greater than the thickness dimension of the connecting plate.

[0039] In the above technical solution, by setting the height of the groove to be greater than the thickness of the connecting plate, the groove can cover the gap between the connector and the housing connector, thereby further reducing the possibility of powder entering the housing and thus further reducing the probability of the housing being contaminated or damaged.

[0040] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of an angle of the spraying fixture according to an embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the spraying fixture according to an embodiment of this application from another angle;

[0043] Figure 3 This is a schematic diagram of the spraying fixture according to an embodiment of this application from another angle;

[0044] Figure 4 This is a schematic diagram of the spraying fixture according to an embodiment of this application from another angle;

[0045] Figure 5 This is a partial schematic diagram of a spraying hanger according to an embodiment of this application;

[0046] Figure 6 yes Figure 5 A schematic diagram of the fastener shown;

[0047] Figure 7 yes Figure 5 A cross-sectional view of the fastener shown;

[0048] Figure 8 yes Figure 5 A schematic diagram of the fastener from another angle;

[0049] Figure 9 yes Figure 5 A schematic diagram of the connector shown;

[0050] Figure 10 This is a schematic diagram showing the connection between the connector and the housing;

[0051] Figure 11 This is a schematic diagram showing the connection between the connector and the housing from another angle;

[0052] Figure 12 This is a schematic diagram of the connection between the connector and the housing at an angle;

[0053] Figure 13 yes Figure 5 A schematic diagram of the connector shown from another angle;

[0054] Figure 14 yes Figure 5 A cross-sectional view of the connector shown;

[0055] Figure 15 yes Figure 5 A cross-sectional view of the fastener shown from another angle;

[0056] Figure 16 yes Figure 5 A cross-sectional view of the connector shown from another angle.

[0057] Figure label:

[0058] 100. Spray painting fixtures;

[0059] 10. Hanging rod;

[0060] 20. Insulating components;

[0061] 30. Fixing component; 31. First through hole; 32. First magnetic component; 321. Limiting hole; 33. Second vent hole; 34. Positioning groove;

[0062] 40. Connector; 41. Second magnetic component; 42. First vent; 43. Water collection tank; 44. Connecting plate; 45. Positioning protrusion;

[0063] 200. Shell. Detailed Implementation

[0064] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0066] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0067] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0068] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0069] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two).

[0070] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0071] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0072] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0073] In related technologies, battery casing manufacturing requires insulation treatment. Currently, the traditional method for insulating the outer surface of aluminum casings is to apply a blue film. However, this method is not only cumbersome but also results in poor surface uniformity, failing to meet current requirements. Therefore, an insulating spraying method has emerged. Electrostatic spraying utilizes a high-voltage electrostatic field to direct negatively charged paint particles in the opposite direction of the electric field, adsorbing them onto the surface of the workpiece. To achieve the desired electrostatic spraying effect, the spraying rod must ensure proper grounding of the workpiece to form an effective electrostatic field. Currently, most spraying rods are metal, which leads to significant powder absorption in the electric field, resulting in substantial powder loss, low powder utilization, and increased spraying costs.

[0074] Based on the above considerations, in order to solve the problems of low powder utilization and increased spraying costs caused by traditional hanging poles absorbing powder, this application proposes a spraying rack. The spraying rack includes a hanging pole, an insulating component, and a fixing component. The hanging pole extends along a first direction; the insulating component covers the outside of the hanging pole; and the fixing component is fixed to the hanging pole for mounting and fixing the workpiece to be sprayed. This allows the hanging pole to be insulated from the outside, thereby reducing the amount of paint particles absorbed by the hanging pole itself, thus improving powder utilization and reducing the cost of spraying the workpiece; at the same time, it also improves the ease of cleaning the hanging pole.

[0075] The following is for reference. Figures 1-16 This application describes a spraying hanger according to an embodiment of the present application. Figures 1-5 This is a schematic diagram of a spraying apparatus according to an embodiment of this application; Figures 6-8 and Figure 15 This is a schematic diagram of a fastener according to one embodiment of this application;

[0076] Figure 9 and Figures 13-15 and Figure 16 This is a schematic diagram of a connector according to one embodiment of this application; Figures 10-12 This is a schematic diagram of the connection between the connector and the housing according to one embodiment of this application.

[0077] An embodiment of this application provides a spray painting hanger 100, referring to... Figures 1-5 The spray painting fixture 100 includes: a hanging rod 10, an insulating component 20, and a fixing component 30, wherein the hanging rod 10 is along a first direction (e.g., Figure 1 Extending in the X direction (as shown); the insulating part 20 covers the outside of the hanging rod 10; the fixing part 30 is fixed on the hanging rod 10, and the fixing part 30 is used to install and fix the part to be sprayed.

[0078] Specifically, the hanging rod 10 serves as the basic structure of the entire spraying fixture 100, primarily providing an installation base for other components and suspending the workpiece to be sprayed during actual operation. The insulating component 20 mainly isolates the hanging rod 10 from the external environment. The fixing component 30 is mainly used to fix the workpiece to be sprayed onto the hanging rod 10.

[0079] It should be noted that the spraying hanger 100 in this embodiment is mainly used in electrostatic spraying processes. Electrostatic spraying utilizes a high-voltage electrostatic field to cause negatively charged paint particles to move in the opposite direction of the electric field, thus adsorbing the paint particles onto the surface of the workpiece to be sprayed. Furthermore, to achieve the effect of electrostatic spraying, the hanger 10 needs to ensure that the workpiece to be sprayed is properly grounded to form an effective electrostatic field. Therefore, in the prior art, a large number of paint particles are usually adsorbed on the hanger after spraying, resulting in low powder utilization and difficulty in cleaning the hanger.

[0080] In this embodiment, an insulating element 20 is wrapped around the outside of the hanging rod 10, which can insulate the hanging rod 10 from the outside, thereby reducing the adsorption of paint particles by the hanging rod 10 itself, thus improving the utilization rate of powder, and also improving the ease of cleaning the hanging rod 10.

[0081] It should be further explained that the insulating component 20 can be wrapped around the outside of the hanging rod 10 in various ways. For example, the insulating component 20 can be fixed to the hanging rod 10 by means of sleeve or direct spraying.

[0082] It should be further noted that, in this embodiment, the part to be coated is the casing 200 of a battery cell.

[0083] In the above technical solution, by setting the insulating component 20, the hanging rod 10 can be insulated from the outside, thereby reducing the adsorption of paint particles by the hanging rod 10 itself, thus improving the utilization rate of powder and reducing the cost of spraying the parts to be coated; at the same time, it can also reduce the cleaning difficulty of the hanging rod 10 and improve the cleaning convenience of the hanging rod 10.

[0084] In some embodiments, the fastener 30 has a first through hole 31 extending through the fastener 30 in a first direction, the hanging rod 10 passes through the first through hole 31 and is fixedly connected to the fastener 30, and the insulating member 20 at least completely covers the outer surface of the portion of the hanging rod 10 exposed outside the fastener 30.

[0085] The phrase "the insulating element 20 at least completely covers the outer surface of the portion of the hanging rod 10 exposed outside the fixing element 30" can be understood to mean that the insulating element 20 can completely cover the outer surface of the hanging rod 10 exposed outside the fixing element 30, or it can completely cover all the outer surfaces of the hanging rod 10. The complete coverage of the exposed portion of the hanging rod 10 by the insulating element 20 provides reliable electrical isolation, thereby preventing dust, paint particles, or other impurities from adhering to the hanging rod 10, thus ensuring the cleanliness of the hanging rod 10.

[0086] In the above technical solution, by setting the insulating component 20 to at least completely cover the outer surface of the part of the hanging rod 10 exposed outside the fixing component 30, the exposed part of the hanging rod 10 can be insulated, thereby reducing the probability of dust, paint particles or other impurities adhering to the hanging rod 10, thus improving the cleanliness of the hanging rod 10.

[0087] In some embodiments, refer to Figure 5 A portion of the insulating element 20 extends into the first through hole 31.

[0088] In the above technical solution, by setting a portion of the insulating component 20 to extend into the first through hole 31, the insulation area of ​​the hanging rod 10 can be increased, thereby further reducing the dust absorption of the hanging rod 10, and thus improving the ease of maintenance and cleaning of the hanging fixture.

[0089] In some embodiments, the insulating element 20 is configured to block the first through hole 31.

[0090] It should be noted that there are various sealing methods. For example, plug-type sealing involves designing the insulating component 20 as a plug that matches the shape and size of the first through hole 31, which can be directly inserted into the through hole; adhesive sealing involves using an adhesive to directly attach the insulating component 20 to the first through hole 31 to form a non-removable seal, etc.

[0091] In the above technical solution, by setting the insulating component 20 to block the first through hole 31, dust can be prevented from entering the fixing component 30 through the first through hole 31 and accumulating in the fixing component 30, thereby improving the speed of maintenance and cleaning of the hanger.

[0092] In some embodiments, a portion of the insulating member 20 extends into the first through hole 31, and the hanging rod 10 is interference-fitted with the first through hole 31 through the insulating member 20.

[0093] Specifically, an interference fit is a mechanical connection in which two parts are fixedly connected through close contact. In this type of fit, the size of one part (usually its outer diameter) is slightly larger than the bore or inner diameter of the other part, requiring a certain force to be applied during assembly to bring them together. Once assembled, this interference fit provides a very secure connection, typically without the need for additional fasteners such as bolts or clips.

[0094] In the above technical solution, by setting a portion of the insulating component 20 to extend into the first through hole 31, and by interfering with the first through hole 31 through the insulating component 20, the insulating component 20 can block the first through hole 31, thereby further preventing powder from entering the fixing component 30 from the first through hole 31. This reduces the amount of powder stored in the fixing component 30 and the amount of powder absorbed on the hanging rod 10. At the same time, it can further improve the connection stability between the hanging rod 10 and the fixing component 30 and reduce the risk of the fixing component 30 falling off.

[0095] In some embodiments, the insulating element 20 is an insulating sleeve, which is fitted on the radial outer side of the hanging rod 10.

[0096] It should be noted that the insulating sleeve can be installed by directly slipping it on, or it can be fixed by applying an adhesive coating. Both methods ensure electrical isolation between the hanging rod 10 and the outside environment, while providing mechanical protection, adapting to different application environments, and simplifying the maintenance process.

[0097] In the above technical solution, by setting the insulating component 20 as an insulating sleeve, the assembly difficulty of the insulating component 20 and the hanging rod 10 can be reduced. At the same time, when the insulating component 20 is damaged, the insulating component 20 can be replaced separately without replacing the entire hanging rod 10, thereby reducing maintenance costs. In addition, the insulating component 20 being formed as an insulating sleeve can also ensure the grounding requirement of the workpiece in the electrostatic spraying process while solving the problem of powder absorption by the hanging rod 10.

[0098] In some embodiments, there are multiple insulating elements 20, which are arranged at intervals along a first direction, and the fixing element 30 is arranged between two adjacent insulating elements 20.

[0099] Understandably, the insulating component 20 on the hanging rod 10 is segmented. The segmented design of the insulating component 20 can flexibly adjust the spacing and quantity according to actual needs to adapt to the requirements of different spraying hangers 100, thereby improving the applicability of the spraying hanger 100. At the same time, if the insulating component 20 or the fixing component 30 in a specific area has a problem, the segmented design allows for the replacement of the problematic part alone, without having to replace the entire hanger, thus reducing maintenance costs and time.

[0100] For example, the number of insulating elements 20 can be two, three or more.

[0101] Optionally, the spraying hanger 100 further includes a connecting part, which is fixed to one end of the hanging rod 10 in the first direction by fasteners, for suspending the spraying hanger 100 on the chain of the spraying equipment. Multiple insulating elements 20 are spaced apart on the hanging rod 10 along the first direction. One end of the insulating element 20 furthest from the connecting part extends into the first through hole 31, and the hanging rod 10 is press-fitted with the first through hole 31 through this insulating element 20. This effectively prevents the last insulating element 20 from falling off the hanging rod 10, thereby effectively solving the problem of powder suction at the end of the hanging rod 10.

[0102] In the above technical solution, by setting multiple insulating parts 20, when some insulating parts 20 are damaged, it is possible to replace the problematic parts individually without replacing the entire hanger, thereby reducing maintenance costs and time.

[0103] In some embodiments, the insulating element 20 is a polytetrafluoroethylene element.

[0104] Polytetrafluoroethylene (PTFE) has high mechanical strength and wear resistance, as well as good high temperature resistance and insulation.

[0105] In the above technical solution, by setting the insulating component 20 to be a polytetrafluoroethylene component, the insulating component 20 can not only meet the insulation requirements, but also improve the service life of the insulating component 20.

[0106] In some embodiments, refer to Figures 4-5 The spraying fixture 100 also includes a connector 40, which is connected to a fixing member 30. The fixing member 30 is used to fix the workpiece to be sprayed through the connector 40.

[0107] It is understandable that there is no connection between the fastener 30 and the part to be sprayed. Therefore, it is not necessary to consider whether the dimensions between the fastener 30 and the part to be sprayed are suitable. Only the dimensions of the connector 40 need to be adjusted, which can reduce the complexity of the design of the spraying fixture 100.

[0108] It should be noted that there are various ways to connect the connector 40 and the fastener 30, such as snap-fit ​​connection, bolt connection, interference fit, etc., to ensure tight contact and stable connection between the two.

[0109] In the above technical solution, by setting the connector 40, there is no connection between the fixing part 30 and the part to be sprayed. Therefore, it is not necessary to consider whether the size between the fixing part 30 and the part to be sprayed is appropriate. Only the size of the connector 40 needs to be adjusted, thereby reducing the complexity of the design of the spraying fixture 100.

[0110] In some embodiments, the fastener 30 and the connector 40 are detachably connected.

[0111] It should be noted that there are various detachable connection methods. For example, the fastener 30 and the connector 40 can be connected by threads, snaps, pins, or magnetic attraction.

[0112] In the above technical solution, by setting the fixing part 30 and the connecting part 40 to be detachably connected, the parts to be sprayed can be quickly fixed and removed, which can greatly save the time of loading and unloading the spraying hanger 100, thereby improving the spraying efficiency.

[0113] In some embodiments, the fastener 30 and the connector 40 are connected by magnetic attraction.

[0114] The magnetic connection allows for quick and easy assembly and disassembly between the fastener 30 and the connector 40 without the need for tools or complex mechanical structures. This not only improves production efficiency but also saves time and labor when adjustments or replacements of workpieces are required.

[0115] In addition, magnetic connection does not require additional screws, nuts and other fasteners, which simplifies the overall structure of the hanger, reduces the number of parts, and thus reduces the manufacturing cost of the entire spraying hanger 100.

[0116] In the above technical solution, by setting the fixing part 30 and the connecting part 40 to be connected by magnetic attraction, time and labor can be saved when it is necessary to adjust or replace the workpiece, thereby further improving production efficiency. At the same time, the number of parts can be reduced, thereby simplifying the overall structure of the hanger and reducing the manufacturing cost of the entire spraying hanger 100.

[0117] In some embodiments, refer to Figures 6-9 The fixing member 30 has a first magnetic attraction member 32, and the connecting member 40 has a second magnetic attraction member 41. The fixing member 30 and the connecting member 40 are attracted to each other by the first magnetic attraction member 32 and the second magnetic attraction member 41.

[0118] Preferably, there are multiple first magnetic suction components 32 and second magnetic suction components 41, and the first magnetic suction components 32 and second magnetic suction components 41 correspond one-to-one. In this way, the connection strength between the fixing component 30 and the connecting component 40 can be improved, thereby improving the stability of the part to be sprayed on the hanging rod 10.

[0119] In the above technical solution, by setting the first magnetic suction component 32 and the second magnetic suction component 41, the accuracy of the docking between the fixing component 30 and the connecting component 40 can be improved, thereby improving the accuracy and stability of the installation of the fixing component 30 and the connecting component 40.

[0120] In some embodiments, the fixing member 30 is provided with a limiting member, and the fixing member 30 is fixedly connected to the hanging rod 10 through the limiting member.

[0121] It should be noted that the limiting component can be fixedly connected to the hanging rod 10 in a variety of ways, such as snap-fit, bolt connection, magnetic connection, etc.

[0122] In the above technical solution, by providing a limiting member on the fixing member 30, the fixing member 30 is fixedly connected to the hanging rod 10 through the limiting member, so that the hanging rod 10 can be fixedly connected to the fixing member 30 without adding other parts. In this way, the overall structure of the spraying hanger 100 can be simplified and the assembly complexity of the spraying hanger 100 can be reduced.

[0123] In some embodiments, refer to Figures 6-9 The limiting member has a limiting hole 321, and the fixing member 30 also has a limiting pin. The hanging rod 10 passes through the limiting hole 321 and is fixedly connected to the limiting member by the limiting pin.

[0124] It is understood that in this embodiment, the hanging rod 10 is inserted into the limiting hole 321 of the fixing member 30 and fixed by the limiting pin. The pin connection structure is simple and has high connection stability. Therefore, the hanging rod 10 in this embodiment passes through the limiting hole 321 and is fixedly connected to the limiting member by the limiting pin, which can increase the stability of the connection between the fixing member 30 and the hanging rod 10, thereby improving the reliability of the hanging member.

[0125] In the above technical solution, by setting the hanging rod 10 to pass through the limiting hole 321 and to be fixedly connected to the limiting member by the limiting pin, the stability of the connection between the fixing member 30 and the hanging rod 10 can be increased, thereby improving the reliability of the hanging member.

[0126] In some embodiments, the limiting element is a magnetic element, and the limiting element is magnetically connected to the hanging rod 10.

[0127] It is understandable that a limiting hole 321 is formed on the magnetic component, the hanging rod 10 passes through the limiting hole 321 and is magnetically connected to the limiting component.

[0128] In the above technical solution, by setting the limiting component as a magnetic component, the limiting component is magnetically connected to the hanging rod 10, which can improve the connection convenience between the fixing component 30 and the hanging rod 10, and further improve the assembly efficiency of the spraying hanger 100.

[0129] In some embodiments, the connector 40 and the fixing member 30 are magnetically connected by a magnetic element.

[0130] It is understood that the magnetic component in this embodiment can not only be magnetically attracted to the connector 40, but also magnetically connected to the hanging rod 10. In other words, this embodiment can achieve a fixed connection between the hanging rod 10 and the fixing component 30 and between the fixing component 30 and the connector 40 through a single magnetic component.

[0131] It should be further noted that the magnetic component in this embodiment is the same component as the first magnetic attracting component 32.

[0132] In the above technical solution, by setting the connector 40 and the fixing part 30 to be magnetically connected by magnetic parts, the number of magnetic parts used can be reduced, thereby further simplifying the overall structure of the spraying hanger 100 and reducing the manufacturing cost of the entire spraying hanger 100.

[0133] In some embodiments, the spraying hanger 100 is configured to ground the workpiece to be sprayed sequentially through the connector 40, the limiting member, and the hanging rod 10.

[0134] It is understood that in this embodiment, the connector 40, the limiting member, and the hanging rod 10 are all made of conductive materials. The limiting member is a magnetic component; that is, in this embodiment, the magnetic component is a conductor.

[0135] Optionally, the connector 40 can be made of aluminum, the limiting component can be a magnet, and the hanging rod 10 can be made of stainless steel.

[0136] Optionally, the limit pins are also made of conductive material. This further ensures the effectiveness of grounding the part to be painted.

[0137] It should be noted that in this embodiment, the part to be sprayed is electrically connected to the connector 40, and the connector 40 is electrically connected to the hanging rod 10 through the limiting member, thereby realizing the grounding of the part to be sprayed.

[0138] In the above technical solution, by setting the spraying hanger 100 to allow the workpiece to be sprayed to be grounded in sequence through the connector 40, the limiting member and the hanging rod 10, the grounding of the workpiece to be sprayed can be achieved without adding parts, thereby simplifying the overall structure of the spraying hanger 100 and reducing the manufacturing cost of the entire spraying hanger 100.

[0139] In some embodiments, refer to Figures 10-13The part to be coated is the housing 200 of a battery cell, and the housing 200 is in the second direction (e.g.) Figure 10 One side of the Y-direction (shown in reverse direction) is formed as an open opening, and the connector 40 is configured to be suitable for sealing the open opening of the housing 200, wherein the second direction intersects the first direction.

[0140] The open opening of the battery cell casing 200 is primarily used for the subsequent placement of electrode plates and other components into the receiving cavity of the casing 200. It should be noted that these components have extremely high requirements for environmental cleanliness. Any paint particles or other impurities entering the casing 200 may lead to a decrease in battery performance or malfunction. Therefore, the connector 40 provided in this application is configured to cover the open opening of the casing 200, which can effectively prevent paint particles or other impurities from entering the casing 200, thereby protecting the interior of the casing 200 from contamination or damage.

[0141] It should be further explained that "the first direction intersects with the second direction" is intended to indicate that the first direction and the second direction can be arranged perpendicularly or they can be arranged in a non-perpendicular manner that only intersects. For example, the first direction and the second direction can be arranged at an angle of 30°, 60° or 80°.

[0142] In the above technical solution, by setting the connector 40 to be suitable for sealing the open opening of the housing 200, it is possible to effectively prevent paint particles or other impurities from entering the interior of the housing 200, thereby reducing the probability of the interior of the housing 200 being contaminated or damaged.

[0143] In some embodiments, refer to Figures 11-13 An exhaust channel is formed inside the hanging rod 10, and a vent hole communicating with the exhaust channel is formed on the peripheral wall of the hanging rod 10. A first exhaust hole 42 communicating with the open opening of the housing 200 is formed on the connector 40, and the first exhaust hole 42 is connected to the vent hole.

[0144] The exhaust channel formed inside the hanging rod 10 is mainly used to guide the flow of gas, ensuring that the gas discharged from inside the housing 200 can pass smoothly through the hanging rod 10 and finally be discharged into the external environment; the vent on the peripheral wall of the hanging rod 10 serves as the interface between the exhaust channel and the first exhaust hole 42, allowing the gas inside the housing 200 to smoothly enter the hanging rod 10, thereby ensuring the effective discharge of the gas inside the housing 200.

[0145] It should be noted that since the housing 200 requires surface cleaning before spraying and high-temperature curing after spraying, the housing 200 will experience significant temperature changes throughout the process. This may cause the aluminum housing to deform due to thermal expansion and contraction. However, this embodiment can maintain the balance of air pressure inside and outside the housing 200 by setting up an exhaust channel, thereby effectively reducing the internal pressure difference caused by temperature changes and thus reducing the risk of deformation of the housing 200.

[0146] In the above technical solution, by setting an exhaust channel, a vent hole and a first exhaust hole 42, the balance of air pressure inside and outside the shell 200 can be maintained, thereby effectively reducing the internal pressure difference caused by temperature changes, and thus reducing the risk of deformation of the shell 200.

[0147] In some embodiments, refer to Figures 7-8 The fastener 30 has a second vent hole 33, and the first vent hole 42 is connected to the vent hole through the second vent hole 33.

[0148] In the above technical solution, by setting a second exhaust hole 33 on the fixing member 30, and the first exhaust hole 42 being connected to the ventilation hole through the second exhaust hole 33, the gas flow path from the inside of the housing 200 to the external environment can be unobstructed, thereby further reducing the risk of deformation of the housing 200.

[0149] In some embodiments, refer to Figure 14 There are multiple first exhaust holes 42, and the multiple first exhaust holes 42 are arranged at intervals.

[0150] For example, the number of first exhaust ports 42 can be two, three or more.

[0151] Preferably, the multiple first exhaust holes 42 can be arranged at intervals along the first direction, which can improve the rationality of the layout and reduce the production difficulty of the connector 40.

[0152] In the above technical solution, by setting multiple first exhaust holes 42 arranged at intervals, the gas in each area inside the housing 200 can be effectively discharged, thereby effectively preventing local pressure accumulation and further reducing the risk of local deformation of the housing 200.

[0153] In some embodiments, refer to Figure 14 A water collection trough 43 is formed on the side of the connector 40 facing the fixing member 30, and the water collection trough 43 extends in a ring around the first vent hole 42.

[0154] Specifically, the water collection tank 43 is mainly used to collect the condensate generated during the exhaust process from the first exhaust port 42. The water collection tank 43 extends in a ring around the first exhaust port 42, which allows the water collection tank 43 to collect water from multiple directions. This ensures that the condensate can be guided into the water collection tank 43 no matter which direction it flows down, thereby effectively preventing it from entering the subsequent exhaust channel or re-entering the interior of the housing 200.

[0155] In the above technical solution, by setting up the water collection tank 43, the condensate generated in the gas discharged from the exhaust port can be effectively collected, thereby preventing the condensate from entering the subsequent exhaust channel or re-entering the interior of the housing 200 and causing problems such as electrical short circuit or corrosion.

[0156] In some embodiments, refer to Figure 15 The fixing member 30 has a positioning groove 34 recessed towards the side of the hanging rod 10, and at least a portion of the connecting member 40 is fitted into the positioning groove 34.

[0157] It is understandable that the connector 40 can be partially or fully fitted into the positioning groove 34. The positioning groove 34 helps the connector 40 to be accurately positioned in the predetermined position, thereby reducing installation errors and improving the consistency of the hanging position and the hanging efficiency.

[0158] In the above technical solution, by setting the positioning groove 34, the connector 40 is helped to be accurately positioned in the predetermined position, thereby reducing installation errors and improving the consistency of the hanging position and the hanging efficiency.

[0159] In some embodiments, refer to Figure 16 The connector 40 includes a connecting plate 44 and a positioning protrusion 45, wherein the connecting plate 44 is fitted in the positioning groove 34 and is adapted to the shape of the positioning groove 34.

[0160] The phrase "the connecting plate 44 fits into the positioning groove 34 and is adapted to the shape of the positioning groove 34" can be understood as the outer contour and size of the connecting plate 44 matching the positioning groove 34. This increases the stability of the connection between the connecting member 40 and the fixing member 30. At the same time, the positioning groove 34 can also limit the connecting plate 44 in multiple directions, so that the connecting plate 44 will not slide or rotate relative to the fixing member 30, thereby improving the stability of the part to be sprayed during the entire electrostatic spraying process, and thus improving the spraying effect of the housing 200.

[0161] The positioning protrusion 45 is connected to the side of the bottom wall of the connecting plate 44 away from the positioning groove 34. The positioning protrusion 45 is adapted to cooperate with the opening of the housing 200 to connect the housing 200 to the connector 40.

[0162] Understandably, the connector 40 is connected to the housing 200 via the positioning protrusion 45. The positioning protrusion 45 serves a positioning function, enabling precise positioning of the connector 40 and the housing 200 during installation, thereby improving the installation speed of the connector 40 and the housing 200.

[0163] It should be noted that the fit between the positioning protrusion 45 and the opening of the housing 200 can be an interference fit or other forms of mechanical connection. This ensures that the housing 200 will not loosen or fall off during the painting process, while sealing the opening to protect the internal components.

[0164] In the above technical solution, by setting the connector 40 to include a connecting plate 44 and a positioning protrusion 45, the assembly between the connector 40 and the housing 200 and the fixing member 30 can be made simpler and faster, thereby improving the installation speed of the hanger.

[0165] In some embodiments, refer to Figures 10-16 The side surface of the connecting plate 44 facing the positioning protrusion 45 is adapted to abut against the side end face of the open opening of the housing 200. In the second direction, the height dimension of the groove is greater than the thickness dimension of the connecting plate 44.

[0166] The phrase “the side surface of the connecting plate 44 facing the positioning protrusion 45 is adapted to abut against the side end face of the open opening of the housing 200” can be understood as follows: when the housing 200 is connected to the connector 40, the connector 40 can cover the open opening of the housing 200 through the connecting plate 44, and a gap is only formed at the connection position.

[0167] "In the second direction, the height dimension of the groove is greater than the thickness dimension of the connecting plate 44" is intended to indicate that the connecting plate 44 is entirely arranged in the groove, and the connection between the connector 40 and the housing 200 is also arranged in the groove.

[0168] In the above technical solution, by setting the height of the groove to be greater than the thickness of the connecting plate 44, the groove can cover the gap between the connector 40 and the housing 200 connector 40, thereby further reducing the possibility of powder entering the housing 200 and thus further reducing the probability of the housing 200 being contaminated or damaged.

[0169] In some embodiments, refer to Figures 15-16 In the second direction, the difference between the height dimension H of the groove and the thickness dimension M of the connecting plate 44 is 0.5mm-1mm.

[0170] It is understandable that when the connecting plate 44 is fitted into the groove, the height of the groove in the second direction exceeds the connecting plate 44 by 0.5mm-1mm.

[0171] For example, in the second direction, the difference between the height dimension H of the groove and the thickness dimension M of the connecting plate 44 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1.0mm.

[0172] In the above technical solution, by setting the height of the groove and the thickness of the connecting plate 44 in the second direction, the difference is 0.5mm-1mm, so that the groove does not extend too far beyond the connecting plate 44. This ensures that the groove can effectively block the gap between the connector 40 and the housing 200, thereby reducing the probability of powder entering the housing 200 during the spraying process. At the same time, it also ensures that the groove does not extend too far beyond the connecting plate 44, which helps to ensure the spraying area of ​​the housing 200 and thus improves the spraying effect of the housing 200.

[0173] In some embodiments, refer to Figure 5 There are multiple connectors 40, which are arranged at intervals along the circumference of the hanging rod 10 and connected to the fixing member 30.

[0174] For example, the number of connectors 40 can be two, three or more.

[0175] Optionally, there are two connectors 40, which are fixedly connected to the two opposite sides of the fixing member 30, so that the two housings 200 do not interfere with each other, thereby improving the coating effect of the housing 200.

[0176] Optionally, there may be multiple fasteners 30, which are spaced apart along the first direction. This allows one hanging rod 10 to suspend multiple housings 200, thereby increasing overall production capacity.

[0177] Optionally, the length of the hanging rod 10 is adjustable, which allows the length of the hanging rod 10 to be adjusted according to the actual situation, thereby improving the flexibility of the spraying device.

[0178] Optionally, the shape and size of the fastener 30 and the connector 40 are adjustable, so that the fastener 30 and the connector 40 can be adapted to housings 200 of different sizes, thereby improving the flexibility of the spraying device.

[0179] In the above technical solution, by setting multiple connectors 40, the spraying hanger 100 can suspend multiple hangers, thereby improving spraying efficiency and increasing overall production capacity.

[0180] In some embodiments, the spraying hanger 100 further includes an adhesive member connected to the connector 40, the adhesive member being adapted to attach the housing 200 to the connector 40 and to cover the gap between the housing 200 and the connector 40.

[0181] It should be noted that the adhesive can be high-temperature tape. The tape is easy to use and can be quickly applied, which simplifies the assembly process.

[0182] In the above technical solution, by setting an adhesive component, the stability and sealing of the connection between the connector 40 and the housing 200 are further enhanced, thereby improving the reliability and cleanliness of the housing 200 during the spraying process.

[0183] The following will refer to Figures 1-16 This application describes a spray painting fixture 100 according to a specific embodiment.

[0184] Reference Figures 1-5 The spraying hanger 100 includes: a hanging rod 10, an insulating component 20, a fixing component 30, a connecting component 40, and an adhesive component. The hanging rod 10 extends along a first direction; the insulating component 20 covers the outside of the hanging rod 10; the fixing component 30 is fixed to the hanging rod 10; the connecting component 40 is connected to the fixing component 30; the fixing component 30 is adapted to fix the housing 200 of the battery cell through the connecting component 40; the adhesive component is connected to the connecting component 40; the adhesive component is adapted to connect the housing 200 to the connecting component 40 and is adapted to cover the gap between the housing 200 and the connecting component 40.

[0185] Specifically, the insulating element 20 is a polytetrafluoroethylene element and is an insulating sleeve, which is fitted on the radial outer side of the hanging rod 10; there are multiple insulating elements 20, which are arranged at intervals along the first direction, and the fixing element 30 is arranged between two adjacent insulating elements 20.

[0186] The fastener 30 has a first through hole 31 that extends through the fastener 30 in a first direction. The hanging rod 10 passes through the first through hole 31 and is fixedly connected to the fastener 30. The insulating member 20 at least completely covers the outer surface of the portion of the hanging rod 10 exposed outside the fastener 30, and a portion of the insulating member 20 extends into the first through hole 31. The hanging rod 10 is press-fitted with the first through hole 31 through the insulating member 20.

[0187] The fixing member 30 also has a positioning groove 34 recessed towards the side of the hanging rod 10. The fixing member 30 has a plurality of first magnetic elements 32, which are spaced apart on the bottom wall of the positioning groove 34. Limiting holes 321 are formed on the plurality of first magnetic elements 32. The fixing member 30 also has a limiting pin. The hanging rod 10 passes through the limiting hole 321 and is fixedly connected to the plurality of first magnetic elements 32 by the limiting pin.

[0188] The connector 40 has a plurality of second magnetic attractors 41, and the plurality of second magnetic attractors 41 correspond one-to-one with the plurality of first magnetic attractors 32. The fixing member 30 and the connector 40 are attracted by the first magnetic attractors 32 and the second magnetic attractors 41.

[0189] The connector 40 includes a connecting plate 44 and a positioning protrusion 45. The connecting plate 44 fits into the positioning groove 34 and is adapted to the shape of the positioning groove 34. The positioning protrusion 45 is connected to the side of the connecting plate 44 away from the bottom wall of the positioning groove 34. The positioning protrusion 45 is adapted to fit into the opening of the housing 200 to connect the housing 200 to the connector 40.

[0190] In addition, the connector 40 has a plurality of first exhaust holes 42 arranged at intervals that communicate with the open opening of the housing 200, the fixing member 30 has a second exhaust hole 33, the hanging rod 10 has an exhaust channel inside, and the hanging rod 10 has a vent hole that communicates with the exhaust channel on its peripheral wall. The first exhaust holes 42 are connected to the vent hole through the second exhaust holes 33.

[0191] A water collection trough 43 is formed on the side of the connector 40 facing the fixing member 30, and the water collection trough 43 extends in a ring around the first vent hole 42.

[0192] In the above technical solution, by setting the insulating component 20, the hanging rod 10 can be insulated from the outside, thereby reducing the adsorption of paint particles by the hanging rod 10 itself, thus improving the utilization rate of powder and reducing the cost of spraying the parts to be coated; at the same time, it can also reduce the cleaning difficulty of the hanging rod 10 and improve the cleaning convenience of the hanging rod 10.

[0193] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A spray painting hanger, characterized in that, include: Hanging rod (10), the hanging rod (10) extends along a first direction; An insulating element (20) is provided, which covers the outside of the hanging rod (10); A fixing member (30) is fixed on the hanging rod (10). The fixing member (30) is used to install and fix the part to be sprayed. The fixing member (30) has a first through hole (31) that passes through the fixing member (30) along the first direction. The hanging rod (10) passes through the first through hole (31) and is fixedly connected to the fixing member (30). The insulating member (20) at least completely covers the outer surface of the part of the hanging rod (10) exposed outside the fixing member (30). The insulating member (20) is an insulating sleeve. The insulating sleeve is sleeved on the radial outside of the hanging rod (10). There are multiple insulating members (20). Multiple insulating members (20) are arranged at intervals along the first direction. The fixing member (30) is arranged between two adjacent insulating members (20).

2. The spraying fixture according to claim 1, characterized in that, A portion of the insulating element (20) extends into the first through hole (31), and / or the insulating element (20) is configured to block the first through hole (31).

3. The spraying fixture according to claim 2, characterized in that, A portion of the insulating element (20) extends into the first through hole (31), and the hanging rod (10) is interference-fitted with the first through hole (31) through the insulating element (20).

4. The spraying fixture according to any one of claims 1-3, characterized in that, Also includes: A connector (40) is connected to a fixing member (30), and the fixing member (30) is used to fix the part to be sprayed through the connector (40).

5. The spraying fixture according to claim 4, characterized in that, The fastener (30) is detachably connected to the connector (40).

6. The spraying fixture according to claim 5, characterized in that, The fastener (30) and the connector (40) are connected by magnetic attraction.

7. The spraying fixture according to claim 6, characterized in that, The fixing member (30) has a first magnetic attractor (32), and the connecting member (40) has a second magnetic attractor (41). The fixing member (30) and the connecting member (40) are magnetically attracted by the first magnetic attractor (32) and the second magnetic attractor (41).

8. The spraying fixture according to claim 4, characterized in that, The fixing member (30) is provided with a limiting member, and the fixing member (30) is fixedly connected to the hanging rod (10) through the limiting member.

9. The spraying fixture according to claim 8, characterized in that, The limiting member has a limiting hole (321), the fixing member (30) also has a limiting pin, the hanging rod (10) passes through the limiting hole (321) and is fixedly connected to the limiting member through the limiting pin.

10. The spraying fixture according to claim 9, characterized in that, The limiting component is a magnetic component, and the limiting component is magnetically connected to the hanging rod (10). The connecting component (40) and the fixing component (30) are magnetically connected through the magnetic component.

11. The spraying fixture according to claim 4, characterized in that, The part to be coated is the housing (200) of a battery cell, the housing (200) having an open opening on one side in a second direction, and the connector (40) being configured to cover the open opening of the housing (200), wherein the second direction intersects the first direction.

12. The spraying fixture according to claim 11, characterized in that, An exhaust channel is formed inside the hanging rod (10), and a vent hole communicating with the exhaust channel is formed on the peripheral wall of the hanging rod (10). A first exhaust hole (42) communicating with the opening of the housing (200) is formed on the connector (40), and the first exhaust hole (42) is connected to the vent hole.

13. The spraying fixture according to claim 12, characterized in that, A second vent hole (33) is formed on the fixing member (30), and the first vent hole (42) is connected to the vent hole through the second vent hole (33). Alternatively, a water collection groove (43) is formed on the side of the connecting member (40) facing the fixing member (30), and the water collection groove (43) extends in a ring around the first vent hole (42).

14. The spraying fixture according to claim 11, characterized in that, The fastener (30) has a positioning groove (34) recessed toward the side of the hanging rod (10), and at least a portion of the connector (40) fits into the positioning groove (34).

15. The spraying fixture according to claim 14, characterized in that, The connector (40) includes: A connecting plate (44) is fitted into the positioning groove (34) and is adapted to the shape of the positioning groove (34); A positioning protrusion (45) is connected to the side of the bottom wall of the connecting plate (44) away from the positioning groove (34). The positioning protrusion (45) is adapted to engage with the opening of the housing (200) to connect the housing (200) to the connector (40).

16. The spraying fixture according to claim 15, characterized in that, The side surface of the connecting plate (44) facing the positioning protrusion (45) is adapted to abut against the side end face of the opening of the housing (200), and in the second direction, the height dimension of the groove is greater than the thickness dimension of the connecting plate (44).

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