A paint spray booth

Abstract

The application discloses a paint spraying room, comprising a paint spraying room body and a paint spraying device arranged in the paint spraying room body, wherein the paint spraying room body comprises an air inlet chamber, an air outlet chamber and a paint spraying chamber; the paint spraying chamber is provided with a paint spraying station, and the paint spraying device is configured to spray paint on a battery to be painted on the paint spraying station; the air inlet chamber is provided with an air inlet, the air outlet chamber is provided with an air outlet, and the air outlet chamber is provided with a first fan configured to discharge air to the direction of the air outlet. The first fan in the air outlet chamber is configured to discharge air to the direction of the air outlet, and under the action of the first fan, directional air flow from the air inlet chamber to the air outlet chamber can be formed in the paint spraying chamber, the direction of the air flow is basically the same as the paint spraying direction, so that the kinetic energy of paint mist can be improved, the paint mist is driven to be sprayed to the direction of the battery to be painted, and the paint mist is prevented from being randomly scattered due to kinetic energy exhaustion before reaching the battery to be painted, the paint spraying quality is affected, and the environment in the paint room is polluted.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a paint booth. Background Technology

[0002] To ensure the safe and stable operation of individual battery cells, insulation is typically applied to the outside of the battery casing. During charging and discharging, the electrodes of a single battery cell carry high voltages. Insulation effectively prevents current conduction between the battery casing and external conductors, preventing short circuits and avoiding serious safety issues such as performance degradation, overheating, or even fire and explosion.

[0003] One existing insulation treatment method involves spraying insulating varnish onto the outer surface of the battery casing, using a painting robot to spray the varnish onto one side of the battery casing. Currently, to facilitate painting each surface, multiple spray booths are set up, each equipped with a painting robot to paint the corresponding surface of each individual battery cell.

[0004] The painting robot sprays paint mist onto the corresponding surface of the individual battery in the painting booth. As the paint mist moves, its kinetic energy gradually decreases. After being sprayed a long distance, the paint mist can no longer move in a directional manner and will drift around, causing the paint mist to drift randomly and pollute the environment inside the painting booth.

[0005] Therefore, how to prevent paint mist from drifting randomly and polluting the environment inside the spray booth is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a spray booth to prevent paint mist from drifting randomly and causing pollution of the environment inside the spray booth.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] The first aspect of this application provides a spray booth, including a spray booth body and a spraying device disposed within the spray booth body. The spray booth body includes an air inlet chamber, an exhaust chamber and a spraying chamber, wherein the spraying chamber is located between the air inlet chamber and the exhaust chamber.

[0009] Along the painting direction of the painting device, the air inlet chamber, the exhaust chamber and the painting chamber are in a connected state, the painting chamber is provided with a painting station, and the painting device is configured to paint the battery to be painted at the painting station;

[0010] The air intake chamber is provided with an air inlet, the exhaust chamber is provided with an air outlet, and the exhaust chamber is provided with a first fan that exhausts air towards the air outlet.

[0011] The spray booth provided in this application has a spray chamber located between an air inlet chamber and an exhaust chamber. The spraying device sprays paint towards the spray chamber, and the air inlet chamber, exhaust chamber, and spray chamber are in a connected state. The exhaust chamber is equipped with a first fan that exhausts air towards the exhaust vent. Under the action of the first fan, a directional airflow from the air inlet chamber to the exhaust chamber is formed within the spray booth. The direction of this airflow is basically the same as the spraying direction, thereby increasing the kinetic energy of the paint mist and driving it towards the battery to be sprayed. This prevents the paint mist from drifting randomly due to kinetic energy depletion before reaching the battery, thus affecting the spraying quality and polluting the environment inside the spray booth.

[0012] The directional airflow generated by the primary fan ensures that the paint mist containing insulating varnish solvent is strictly controlled, flowing only along a predetermined path and preventing widespread diffusion, thus reducing its impact on the paint booth environment. This directional airflow provides a stable and controllable environment for the spraying process, reducing interference from external airflows, resulting in more stable spraying operations and a more uniform coating thickness. The paint mist is carried by the directional airflow to the exhaust chamber, where it can be easily filtered to minimize its environmental impact. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the spray booth disclosed in the embodiments of this application;

[0015] Figure 2 This is a front view of the spray booth disclosed in the embodiments of this application;

[0016] Figure 3 This is a schematic diagram of the structure of the concealed shell of the spray booth disclosed in an embodiment of this application;

[0017] Figure 4 for Figure 3 A structural diagram of the hidden portion of the structure;

[0018] Figure 5 for Figure 4 A structural diagram of the hidden portion of the structure.

[0019] The meanings of the various reference numerals in the figure are as follows:

[0020] 110 - Air inlet chamber; 111 - Air inlet; 112 - Air inlet door; 113 - Air inlet filter; 114 - First partition;

[0021] 120 - Exhaust chamber; 121 - Exhaust vent; 122 - Exhaust chamber door; 123 - Exhaust filter; 124 - Second partition;

[0022] 130 - Paint spraying chamber; 131 - Clearance groove;

[0023] 140 - Spray painting equipment;

[0024] 150-Paint-blocking grille;

[0025] 160 - Battery to be painted;

[0026] 170 - Positioning component; 171 - Positioning slot;

[0027] 180- Paint blocking device;

[0028] 101 - Air inlet filtration area; 102 - Air inlet painting area; 103 - First bottom chamber;

[0029] 201 - Exhaust air filtration area; 202 - Exhaust air painting area; 203 - Second bottom chamber;

[0030] 301 - Spray painting station area; 302 - Transfer space. Detailed Implementation

[0031] This application discloses a spray booth to prevent paint mist from drifting randomly and causing pollution of the spray booth environment.

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] like Figure 1 and Figure 3 As shown in the figure, this application discloses a spray booth, which includes a spray booth body and a spraying device 140 disposed within the spray booth body. The spray booth body includes an air inlet chamber 110, an exhaust chamber 120, and a spraying chamber 130.

[0034] The painting chamber 130 is located between the air intake chamber 110 and the exhaust chamber 120. The painting device 140 is disposed within the air intake chamber 110 and / or the painting chamber 130. The painting device 140 can be a painting robot, which can be disposed within the air intake chamber 110 and spray paint from the air intake chamber 110 towards the painting chamber 130. The painting device 140 can also be disposed within the painting chamber 130 and spray paint the battery 160 to be painted from the painting chamber 130. The painting device 140 can also be disposed simultaneously within both the air intake chamber 110 and the painting chamber 130, that is, a portion of the structure of the painting device 140 is located within the air intake chamber 110, and a portion of the structure is located within the painting chamber 130.

[0035] Along the painting direction of the painting device 140, the air inlet chamber 110, the exhaust chamber 120 and the paint spraying chamber 130 are in a connected state so that airflow can flow between the air inlet chamber 110, the exhaust chamber 120 and the paint spraying chamber 130.

[0036] The paint spraying chamber 130 is equipped with a paint spraying station. The battery 160 to be painted can be transported to the paint spraying station of the paint spraying chamber 130 by a transfer vehicle. The paint spraying device 140 is configured to spray paint onto the battery 160 to be painted at the paint spraying station.

[0037] The air intake chamber 110 is provided with an air inlet 111, and the exhaust chamber 120 is provided with an exhaust outlet 121. The exhaust chamber 120 is provided with a first fan (not shown in the figure) that exhausts air towards the exhaust outlet 121. When the first fan is working, it guides the airflow from the air inlet 111 into the air intake chamber 110, and through the air intake chamber 110 into the paint spraying chamber 130, and from the paint spraying chamber 130 into the exhaust chamber 120, and finally out through the exhaust outlet 121 of the exhaust chamber 120.

[0038] The spray booth disclosed in this application embodiment has a spray chamber 130 disposed between an air inlet chamber 110 and an exhaust chamber 120. The spraying device 140 sprays paint towards the spray chamber 130, and the air inlet chamber 110, exhaust chamber 120, and spray chamber 130 are in a connected state. The exhaust chamber 120 is equipped with a first fan that exhausts air towards the exhaust vent. Under the action of the first fan, a directional airflow from the air inlet chamber 110 to the exhaust chamber 120 can be formed in the spray chamber 130. The direction of this airflow is basically the same as the spraying direction, thereby increasing the kinetic energy of the paint mist and driving it towards the battery 160 to be sprayed. This prevents the paint mist from drifting randomly due to kinetic energy depletion before reaching the battery 160, thus affecting the spraying quality and polluting the environment inside the spray booth.

[0039] The directional airflow generated by the primary fan ensures that the paint mist containing insulating varnish solvent is strictly controlled, flowing only along a predetermined path and preventing widespread diffusion, thus reducing its impact on the environment inside the spray booth. The directional airflow provides a stable and controllable environment for the spraying process, reducing interference from external airflows, resulting in more stable spraying operations and a more uniform coating thickness. The paint mist is carried by the directional airflow to the exhaust chamber 120, where it can be easily filtered to further minimize its environmental impact.

[0040] If only the first fan in the exhaust chamber 120 draws air, then the air intake through the air inlet 111 of the intake chamber 110 is passive. Air will irregularly rush in from the air inlet 111 and various gaps in the paint booth body, easily generating eddies and turbulence in the paint chamber 130. These turbulences will cause paint mist to scatter, affecting the painting quality, and will attract dust to the surface of the battery 160 to be painted.

[0041] Based on this, in a specific embodiment of this application, a second fan is provided in the air intake chamber 110, which draws air in through the air inlet 111. The second fan can actively send the passing air into the air intake chamber 110. Combined with the suction of the first fan, the entire airflow field becomes very stable, uniform, and controllable, which can effectively guide the paint mist to the spraying chamber 130, greatly improving the directional control accuracy of the paint mist.

[0042] Furthermore, the air velocity output by the first fan is greater than that output by the second fan. In other words, when the first and second fans are of the same model, the rotational speed of the first fan is greater than that of the second fan, resulting in the first fan's suction capacity being greater than the second fan's air delivery capacity.

[0043] When the airflow from the first fan is greater than that from the second fan, more air is drawn out of the paint booth than is brought in. To balance this flow, external air is drawn in through other gaps, resulting in a slightly lower air pressure inside the paint booth compared to the external environment, maintaining a negative pressure state. This negative pressure ensures unidirectional airflow. Even with gaps in the paint booth, allowing outside air to be drawn in, paint mist and harmful gases cannot escape through these gaps, significantly improving safety and eliminating the risk of fire, explosion, and health hazards.

[0044] In this embodiment, the wind speed output by the first fan can be 6 m / s to 12 m / s. Exemplary examples of the wind speed output by the first fan can be 6 m / s, 7 m / s, 8 m / s, 9 m / s, 10 m / s, 11 m / s, 12 m / s, etc. This embodiment does not limit the specific value of the wind speed output by the first fan, and those skilled in the art can select a suitable wind speed based on simulation data.

[0045] The wind speed output by the second fan is 1.2 m / s to 2.4 m / s. For example, the wind speed output by the second fan can be 1.2 m / s, 1.4 m / s, 1.6 m / s, 1.8 m / s, 2 m / s, 2.2 m / s, 2.4 m / s, etc. This embodiment does not limit the specific value of the wind speed output by the second fan. Those skilled in the art can select a suitable wind speed based on simulation data.

[0046] The first fan can be installed inside the exhaust vent 121. In this embodiment, installing the first fan inside the exhaust vent 121 can reduce the occupation of other spaces, making it easier to install equipment such as filter devices. Moreover, installing the first fan at the exhaust vent 121 is also more convenient for disassembly and assembly, so that maintenance can be carried out quickly in the event of a failure of the first fan.

[0047] The second fan can be installed inside the air inlet 111. In this embodiment, installing the second fan inside the air inlet 111 can reduce the occupation of other spaces, making it easier to install equipment such as filter devices. Moreover, installing the second fan at the air inlet 111 is also more convenient for disassembly and assembly, so that maintenance can be carried out quickly in the event of a failure of the second fan.

[0048] like Figure 4 and Figure 5 As shown in a specific embodiment of this application, the painting station is provided with a positioning component 170, and the positioning component 170 is provided with a positioning groove 171, which extends along the moving direction of the battery 160 to be painted.

[0049] The transfer carrier can transport the batteries 160 to be painted to the painting station. One transfer carrier can transport multiple batteries 160 to be painted at the same time. The transfer carrier can transport the batteries 160 to be painted to the painting station of the painting chamber 130 according to the corresponding route, and stay there to wait for the painting device 140 to perform the painting process.

[0050] When the painting device 140 moves to the positioning component 170, it can move along the positioning groove 171, and the part of the battery 160 to be painted is located outside the positioning groove 171. That is, the part of the battery 160 to be painted will not be blocked by the positioning component 170, and when the painting device 140 paints, the paint mist can adhere to the surface of the exposed part of the battery 160. The positioning component 170 can shield the transport vehicle to prevent a large amount of paint mist from adhering to the transport vehicle and ensure the cleanliness of the transport vehicle.

[0051] Furthermore, the air intake chamber 110, the paint spraying chamber 130, and the exhaust chamber 120 are arranged in a first direction, and the positioning groove 171 extends in a second direction, with the first direction perpendicular to the second direction. This arrangement ensures that the air intake chamber 110 and the exhaust chamber 120 will not interfere with the operating route of the transport vehicle.

[0052] In one specific embodiment of this application, the painting station is further provided with a paint blocking device 180, which is located on both sides of the positioning groove 171, along with the painting device 140. The directional airflow pushes all oversprayed paint mist that is not attached to the battery surface towards the rear of the battery. The paint blocking device 180, located downstream, acts as an interceptor, actively intercepting and capturing paint mist that would otherwise continue to drift within the painting chamber 130 or enter the exhaust chamber 120.

[0053] Most of the paint mist is intercepted by the paint blocking device 180 before entering the exhaust chamber 120, greatly reducing the burden on the downstream paint mist treatment device, extending the filter media life, and reducing maintenance frequency and costs. Less paint mist adhering to the inner wall of the spraying chamber 130 makes the internal environment cleaner and daily cleaning and maintenance easier.

[0054] The paint shielding device 180 can be a detachable structure, and can be detachably fixed to the positioning component 170. Operators can periodically remove the paint shielding device 180 for centralized cleaning (e.g., using paint remover), or directly replace the attached low-cost, easily peelable coating / film, or even replace the entire paint shielding device 180. This setup is far more efficient than cleaning waste paint from the paint shielding device 180 within the spray chamber 130, minimizing production line downtime.

[0055] like Figure 1 As shown, the side wall of the paint spraying chamber 130 is provided with a clearance groove 131 for the battery 160 to be painted to enter the paint spraying chamber 130. The clearance groove 131 is correspondingly connected to the positioning groove 171. This allows the transport vehicle carrying the battery 160 to be painted to enter the paint spraying chamber 130 through the clearance groove 131 and pass through the side wall of the paint spraying chamber 130. In this embodiment, the clearance groove 131 is only provided at the location where the battery 160 to be painted needs to be cleared. This can prevent excessive paint mist from entering the external environment due to the removal of the side wall of the paint spraying chamber 130, thus avoiding its impact on the external environment. Moreover, removing the side wall of the paint spraying chamber 130 would also affect the directional airflow generated by the first fan.

[0056] like Figure 2 As shown, the air intake chamber 110 includes, from top to bottom, an air intake filtration area 101 and an air intake painting area 102 along the height direction. The air intake filtration area 101 mainly accommodates the second fan and the corresponding filter components, while the air intake painting area 102 is the area corresponding to the painting chamber 130.

[0057] The exhaust chamber 120 includes, from top to bottom, an exhaust filtration area 201 and an exhaust painting area 202 along its height. The exhaust filtration area 201 mainly accommodates the first fan and the corresponding filter components, while the exhaust painting area 202 is the area corresponding to the painting chamber 130.

[0058] The spray painting chamber 130 includes a spray painting station area 301, with spray painting stations located within it. The spray painting station area 301, the air intake spray painting area 102, and the exhaust spray painting area 202 are arranged at the same height and are sequentially connected. That is, the spray painting station area 301, the air intake spray painting area 102, and the exhaust spray painting area 202 are arranged horizontally. No chamber may be provided above the spray painting station area 301, and the top of the spray painting station area 301 can be sealed by a partition. If a chamber is provided above the spray painting station area 301, this chamber is not connected to the spray painting station area 301.

[0059] The painting station area 301, the air intake painting area 102, and the exhaust painting area 202 are arranged horizontally. The air intake filter area 101 is located above the air intake painting area 102, and the exhaust filter area 201 is located above the exhaust painting area 202. This arrangement ensures that, under the action of the first fan, air enters through the air intake filter area 101 and flows downwards along the arrangement of the air intake filter area 101 and the air intake painting area 102. Upon entering the air intake painting area 102, the air changes direction, flowing horizontally towards the painting station area 301 until it enters the exhaust painting area 202, then changes direction again, flowing upwards until it is discharged through the exhaust filter area 201.

[0060] In this embodiment, the vertical space is utilized to reduce the floor area of ​​the spray booth, and the spray booth area 301, the air intake spray booth area 102 and the exhaust spray booth area 202 are kept on a horizontal straight line, so that the airflow flows in a horizontal direction, avoiding the airflow from being scattered and making it easier to intercept and collect waste paint mist.

[0061] In this embodiment, the spray gun of the painting device 140 can be located in the air intake painting area 102 and / or the painting station area 301. That is, the spray gun can be located only in the air intake painting area 102, or only in the painting station area 301, or in the combined area of ​​the air intake painting area 102 and the painting station area 301, that is, part of it is located in the air intake painting area 102 and the other part is located in the painting station area 301.

[0062] like Figure 4 and Figure 5 As shown in a specific embodiment of this application, an air inlet filter device 113 is provided in the air inlet filter area 101. This embodiment, by providing the air inlet filter device 113, can provide clean, dust-free air to the painting station area 301. This minimizes the risk of dust, particles, and other impurities being blown onto the undried paint film, thereby ensuring the uniformity, smoothness, and flawlessness of the battery insulating paint layer, and improving product quality and consistency.

[0063] The requirements for the battery insulating varnish layer are extremely high. Any dust or fibers adhering to the varnish film will cause defects and may lead to substandard insulation performance. The air intake filter device 113 can effectively remove particulate matter from the air and ensure that the spraying environment meets the cleanliness requirements of the process. This is a basic prerequisite for producing high-quality and consistent battery products.

[0064] Clean air prevents particulate matter from interfering with the atomization of the coating, allowing the paint to adhere evenly and form a smooth, even film, ensuring both appearance and functionality (such as insulation strength and corrosion resistance). Clean air also reduces the risk of dust entering precision spraying equipment (such as spray guns and atomizers), extending equipment lifespan and reducing failure rates.

[0065] In one specific embodiment of this application, an exhaust filtration device 123 is provided within the exhaust filtration zone 201. The exhaust filtration device 123 captures paint mist particles, ensuring that the gas ultimately discharged into the atmosphere meets environmental emission requirements. Without the exhaust filtration device 123, the viscous paint mist would directly adhere to the impeller and casing of the first fan, causing fan imbalance, vibration, reduced efficiency, and even damage to the motor. The exhaust filtration device 123 intercepts the vast majority of paint mist, protecting the first fan and significantly reducing maintenance costs and downtime.

[0066] Furthermore, the inlet air filter 113 and the exhaust air filter 123 can be the same filter, or different filter devices can be selected according to filtration requirements. Both the inlet air filter 113 and the exhaust air filter 123 may include a filter support and a filter layer fixed on the filter support, and the filter support has multiple ventilation holes.

[0067] The filter support serves as the skeleton structure for mounting the filter layer, which, as the filter media, can be replaced periodically. The filter layer can be filter cotton, and its fixing method to the filter support is not limited, as long as it can be disassembled and replaced. The filter support is densely covered with ventilation holes to allow airflow, and paint mist particles carried in the airflow are intercepted by the filter layer (air outlet side). The filter layer can be replaced when the particulate matter exceeds its interception capacity.

[0068] The air intake filter 113 may be provided as a single unit or as multiple units spaced apart along the air intake direction. In this embodiment, the number of air intake filter 113 is not limited. Correspondingly, the exhaust filter 123 may be provided as a single unit or as multiple units spaced apart along the air intake direction. In this embodiment, the number of exhaust filter 123 is not limited.

[0069] The first fan is located in the exhaust filtration area 201. Along the exhaust direction, the first fan is located downstream of the exhaust filtration device 123, that is, the exhaust filtration device 123 is located upstream of the first fan. The airflow first passes through the exhaust filtration device 123 and is intercepted by the exhaust filtration device 123, which intercepts most of the paint mist particles before flowing through the first fan, so as to avoid the paint mist particles from affecting the first fan.

[0070] The second fan can be installed upstream of the air inlet filter 113. Since the second fan is used to guide air into the air inlet chamber 110, although the air contains particulate matter such as dust, this has almost no impact on the service life of the second fan. Therefore, installing the second fan upstream of the air inlet filter 113 will not affect its safe operation. This maintains that the installation heights of the first and second fans are basically the same, which is more conducive to space arrangement.

[0071] like Figure 2 and Figure 4 As shown in a specific embodiment of this application, the paint spraying station area 301 and the exhaust paint spraying area 202 are separated by a paint blocking grille 150, and the paint blocking grille 150 is provided with grille holes that connect the paint spraying station area 301 and the exhaust paint spraying area 202.

[0072] Without the paint baffle 150, the first fan would generate a strong and uneven suction vortex in the painting station area 301. This would result in uneven airflow velocity in the painting station area 301, with some areas having excessively high wind speeds and others potentially experiencing dead zones or backflow.

[0073] In this embodiment, the paint baffle 150 functions as a flow equalizer. Through the resistance generated by its multiple grille holes, it weakens the strong suction of the first fan, distributing it evenly across the entire surface covered by the paint baffle 150. This creates a stable, uniform, and predictable directional airflow within the painting station area 301, ensuring that paint mist is stably and efficiently pushed towards the exhaust chamber 120 without turbulence causing paint mist dispersion.

[0074] The paint baffle 150 captures most of the oversprayed, viscous paint mist particles, preventing them from directly entering the exhaust chamber 120. This design protects the primary fan from paint mist adhering to its impeller, which could lead to dynamic imbalance, vibration, noise, and reduced efficiency. It also protects the duct walls of the exhaust chamber 120, reducing paint mist accumulation and preventing blockages and fire risks. Furthermore, it reduces the processing load on the exhaust filter 123; the primary interception at the paint baffle 150 significantly extends the service life of the exhaust filter 123.

[0075] like Figure 2As shown in a specific embodiment of this application, the air intake chamber 110 further includes a first bottom chamber 103, which is located below the air intake painting area 102. The exhaust chamber 120 further includes a second bottom chamber 203, which is located below the exhaust painting area 202. A transfer space 302 for a transfer carrier is formed between the first bottom chamber 103 and the second bottom chamber 203. The transfer carrier is used to transfer the battery 160 to be painted. After the transfer carrier moves to the transfer space 302, the battery 160 to be painted on the transfer carrier is located in the painting station area 301.

[0076] The first bottom chamber 103 and the second bottom chamber 203 can raise the height of the air intake spray painting area 102 and the air exhaust spray painting area 202, thereby forming a transfer space 302 below the spray painting station area 301. The transfer space 302 can be a hollow structure, allowing the transfer vehicle to pass through the spray painting booth. After the spray painting booth moves to the transfer space 302, the battery to be painted 160 is in the spray painting station area 301, and the spray painting device 140 can then perform spray painting on the battery to be painted 160.

[0077] like Figure 5 As shown, the first bottom chamber 103 and the air inlet spray painting area 102 are sealed and separated by a first partition 114 to prevent airflow entering the air inlet spray painting area 102 from entering the first bottom chamber 103. The second bottom chamber 203 and the exhaust spray painting area 202 are sealed and separated by a second partition 124 to prevent airflow entering the exhaust spray painting area 202 from entering the second bottom chamber 203.

[0078] In this embodiment, the first partition 114 separates the air intake spray painting area 102 and the first bottom chamber 103, preventing airflow from entering the first bottom chamber 103. This allows the airflow to flow from the air intake spray painting area 102 to the spray painting station area 301 in a direction substantially parallel to the spray painting direction, without being directed to other spaces. The second partition 124 separates the exhaust spray painting area 202 and the second bottom chamber 203, preventing airflow from entering the second bottom chamber 203 and allowing the airflow to be quickly discharged.

[0079] The first bottom chamber 103 and the second bottom chamber 203 can be used to house other equipment, i.e., to serve as storage space for some equipment. For example, the first bottom chamber 103 can be used to fix the base of the painting device 140. The base of the painting device 140 is fixed in the first bottom chamber 103, and the other part extends through the first partition 114 into the air intake painting area 102. It should be noted that the part of the painting device 140 that passes through the first partition 114 needs to be sealed with the first partition 114.

[0080] like Figure 4As shown, the air intake chamber 110 has an air intake door 112 on the side opposite to the paint spraying chamber 130. The air intake door 112 extends from the air intake paint spraying area 102 to the first bottom chamber 103, meaning the height of the air intake door 112 can cover both the air intake paint spraying area 102 and the first bottom chamber 103. In this embodiment, the addition of the air intake door 112 facilitates the cleaning of waste paint inside and also facilitates the maintenance of the paint spraying device 140. The air intake door 112 can be equipped with a transparent window, allowing observation of the interior even when the air intake door 112 is closed.

[0081] Correspondingly, the exhaust chamber 120 has an exhaust chamber door 122 on the side opposite to the paint spraying chamber 130. The exhaust chamber door 122 extends from the exhaust paint spraying area 202 to the second bottom chamber 203, meaning the height of the exhaust chamber door 122 can cover the exhaust paint spraying area 202 and the second bottom chamber 203. In this embodiment, the addition of the exhaust chamber door 122 facilitates the cleaning of waste paint inside (such as waste paint on the paint baffle 150) and also facilitates the maintenance of the paint baffle 150. The exhaust chamber door 122 can be equipped with a transparent window, so that even when the exhaust chamber door 122 is closed, the internal situation can be observed through the transparent window.

[0082] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0083] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0084] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A spray booth, characterized in that, It includes a spray booth body and a spraying device (140) disposed in the spray booth body. The spray booth body includes an air inlet chamber (110), an exhaust chamber (120) and a spraying chamber (130). The spraying chamber (130) is located between the air inlet chamber (110) and the exhaust chamber (120). Along the painting direction of the painting device (140), the air intake chamber (110), the exhaust chamber (120) and the painting chamber (130) are in a connected state, the painting chamber (130) is provided with a painting station, and the painting device (140) is configured to paint the battery (160) to be painted at the painting station; The air intake chamber (110) is provided with an air inlet (111), the exhaust chamber (120) is provided with an exhaust outlet (121), and the exhaust chamber (120) is provided with a first fan that exhausts air towards the exhaust outlet (121).

2. The spray booth as described in claim 1, characterized in that, The air intake chamber (110) is equipped with a second fan that draws air in through the air inlet (111).

3. The spray booth as described in claim 2, characterized in that, The wind speed output by the first fan is greater than the wind speed output by the second fan.

4. The spray booth as described in claim 2, characterized in that, The first fan outputs a wind speed of 6 m / s to 12 m / s; And / or, The second fan outputs a wind speed of 1.2 m / s to 2.4 m / s.

5. The spray booth as described in claim 2, characterized in that, The first fan is located inside the exhaust port (121), and the second fan is located inside the air inlet (111).

6. The spray booth as described in claim 1, characterized in that, The painting station is equipped with a positioning component (170), and the positioning component (170) is provided with a positioning groove (171), which extends along the moving direction of the battery (160) to be painted. When the battery (160) to be painted is transported to the painting station by the transfer carrier, the battery (160) to be painted moves along the positioning groove (171), and the part of the battery (160) to be painted is located outside the positioning groove (171).

7. The spray booth as described in claim 6, characterized in that, The air intake chamber (110), the paint spraying chamber (130) and the exhaust chamber (120) are arranged in a first direction, and the positioning groove (171) extends in a second direction. The first direction is perpendicular to the second direction.

8. The spray booth as described in claim 6, characterized in that, The painting station is also equipped with a paint blocking device (180), and the paint blocking device (180) and the painting device (140) are located on both sides of the positioning groove (171).

9. The spray booth as described in claim 6, characterized in that, The paint spraying chamber (130) has a clearance groove (131) on its shell side wall for the battery (160) to be painted to enter the paint spraying chamber (130). The clearance groove (131) is connected to the positioning groove (171).

10. The spray booth as described in any one of claims 1-9, characterized in that, The air intake chamber (110) includes, from top to bottom, an air intake filtration area (101) and an air intake painting area (102) along the height direction. The exhaust chamber (120) includes, from top to bottom, an exhaust filtration area (201) and an exhaust painting area (202) along the height direction. The spray painting chamber (130) includes a spray painting station area (301), the spray painting station is set in the spray painting station area (301), the spray painting station area (301), the air intake spray painting area (102) and the air exhaust spray painting area (202) are arranged at the same height and are connected in sequence.

11. The spray booth as described in claim 10, characterized in that, The spray gun of the spray painting device (140) is located in the air intake spray painting area (102) and / or the spray painting station area (301).

12. The spray booth as described in claim 10, characterized in that, An air inlet filter (113) is provided in the air inlet filter area (101), and an air outlet filter (123) is provided in the air outlet filter area (201).

13. The spray booth as described in claim 12, characterized in that, The air inlet filter (113) and the air outlet filter (123) include a filter support and a filter layer fixed on the filter support, and the filter support has multiple ventilation holes.

14. The spray booth as described in claim 12, characterized in that, The air intake filter (113) is one or multiple units arranged at intervals along the air intake direction; And / or, The exhaust air filter device (123) is one or multiple devices arranged at intervals along the air intake direction.

15. The spray booth as described in claim 12, characterized in that, The first fan is located in the exhaust filtration zone (201); along the exhaust direction, the first fan is located downstream of the exhaust filtration device (123).

16. The spray booth as described in claim 10, characterized in that, The painting station area (301) and the exhaust painting area (202) are separated by a paint-blocking grille (150), and the paint-blocking grille (150) is provided with grille holes that connect the painting station area (301) and the exhaust painting area (202).

17. The spray booth as described in claim 10, characterized in that, The air intake chamber (110) further includes a first bottom chamber (103), which is located below the air intake painting area (102); The exhaust chamber (120) further includes a second bottom chamber (203), which is located below the exhaust spray painting area (202); A transfer space (302) for a transfer carrier is formed between the first bottom chamber (103) and the second bottom chamber (203). The transfer carrier is used to transfer the battery (160) to be painted. After the transfer carrier moves to the transfer space (302), the battery (160) to be painted on the transfer carrier is in the painting station area (301).

18. The spray booth as described in claim 17, characterized in that, The first bottom chamber (103) and the air inlet spray painting area (102) are sealed and separated by a first partition (114), and the second bottom chamber (203) and the air outlet spray painting area (202) are sealed and separated by a second partition (124).

19. The spray booth as described in claim 17, characterized in that, The air intake chamber (110) has an air intake door (112) on the side opposite to the paint spraying chamber (130), and the air intake door (112) extends from the air intake paint spraying area (102) to the first bottom chamber (103). And / or, The exhaust chamber (120) has an exhaust chamber door (122) on the side opposite to the paint spraying chamber (130), and the exhaust chamber door (122) extends from the exhaust paint spraying area (202) to the second bottom chamber (203).

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