A cleaning device for a lower case of a power battery

Abstract

The application relates to the technical field of cleaning devices and discloses a cleaning device for a lower battery box, which comprises a rack, a positioning clamp arranged on the upper surface of the rack, a pressing mechanism and a flushing mechanism. The flushing mechanism comprises a mounting plate arranged on the upper surface of the rack, a plurality of nozzles and a water pipe. The plurality of nozzles are in one-to-one correspondence with threaded holes on the lower battery box, and the plurality of nozzles are all located below the threaded holes. A plurality of channels in communication with the corresponding nozzles are formed in the mounting plate, and the channels are connected with a water supply mechanism through the water pipe. The positioning clamp is used for supporting the lower battery box, and the pressing mechanism is used for pressing the lower battery box. Through the above arrangement, the plurality of threaded holes on the lower battery box are in one-to-one correspondence with the nozzles. Through the arrangement of the water supply mechanism, the water pipe and the nozzles, the inner walls of the threaded holes are flushed after being atomized by the nozzles, so that oil stains and metal scraps in the threaded holes are removed.

Description

Technical Field

[0001] This invention relates to the technical field of cleaning devices, and in particular to a cleaning device for the lower casing of a power battery. Background Technology

[0002] The power battery casing consists of an upper casing and a lower casing. The upper casing protects the battery modules, while the lower casing, as the main load-bearing component, needs sufficient strength and rigidity. After die-casting, the lower casing requires deburring, shot blasting, drilling, and tapping processes. Please refer to [link to relevant documentation]. Figure 7 and Figure 8 The threaded holes 20 formed in the inner cavity of the lower battery box contain metal shavings. In order to keep the inner cavity of the threaded holes 20 clean and free of oil stains and metal shavings, it is necessary to clean the threaded holes 20. The shape of the lower battery box varies from vehicle model to vehicle model, and the position of the threaded holes 20 is also different. There is an urgent need to develop a cleaning device for the lower battery box to clean the multiple threaded holes 20 on the lower battery box. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a cleaning device for the lower casing of a power battery, which is intended to clean the threaded holes on the lower casing of the battery.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A cleaning device for the lower casing of a power battery includes a frame, a positioning clamp disposed on the upper surface of the frame, a clamping mechanism, and a rinsing mechanism. The rinsing mechanism includes a mounting plate disposed on the upper surface of the frame, multiple nozzles, and a water pipe. The multiple nozzles correspond one-to-one with threaded holes on the lower casing of the battery, and all the multiple nozzles are located below the threaded holes. The mounting plate has multiple channels communicating with the corresponding nozzles, and the channels are connected to a water supply mechanism through the water pipes. The positioning clamp is used to support the lower casing of the battery, and the clamping mechanism is used to clamp the lower casing of the battery.

[0006] The cleaning device for the lower casing of the power battery includes a liquid collection tank on the frame, located below the mounting plate, which is used to collect the rinsing water after cleaning the threaded holes; the outlet of the liquid collection tank is connected to a filter through a pipe, and a high-pressure pump is also installed on the water pipe between the filter and the channel.

[0007] The cleaning device for the lower casing of the power battery includes a first filter screen and a second filter screen inside the filter. The first filter screen is located above the second filter screen, and the rinsing water flows from top to bottom through the first filter screen and the second filter screen. The pore size of the first filter screen is 50 micrometers, and the pore size of the second filter screen is 10 micrometers.

[0008] The cleaning device for the lower casing of the power battery includes a pressing mechanism comprising a pressing cylinder with its output end facing downward, a pressure plate connected to the output end of the pressing cylinder, and a pressing member disposed on the pressure plate, wherein the lower surface of the pressing member is used to abut against the upper surface of the lower casing of the battery.

[0009] The cleaning device for the lower casing of the power battery includes a pressure member comprising a pressure rod, a pressure plate, a spring, and a nut. The upper part of the pressure rod penetrates the upper and lower side walls of the pressure plate, and the upper part of the pressure rod is provided with an external thread, which is threadedly connected to the nut. The spring is sleeved on the pressure rod, with its upper end abutting against the lower surface of the pressure plate and its lower end abutting against the upper surface of the pressure plate. The lower surface of the pressure plate is used to abut against the upper surface of the lower casing of the battery.

[0010] The cleaning device for the lower casing of the power battery further includes a heating mechanism mounted on a frame. The heating mechanism includes an electric heater, a gas storage tank, and a heating pipe. The electric heater is used to heat the gas in the gas storage tank, and the heated gas is blown onto the lower casing of the battery through the heating pipe.

[0011] The cleaning device for the lower battery housing includes an oil mist purification mechanism on the frame, which is located above the lower battery housing and is used to collect water vapor and oil mist generated during the cleaning of the lower battery housing.

[0012] The cleaning device for the lower casing of the power battery includes an oil removal mechanism on the frame, which is connected to the collection tank and is used to remove oil from the rinsing water.

[0013] The cleaning device for the lower housing of the power battery includes a baffle and a lifting cylinder on the frame. The output end of the lifting cylinder faces downward and is connected to the baffle. The baffle is located in front of the lower housing of the battery.

[0014] The cleaning device for the lower casing of the power battery includes two vertically arranged guide rails on the frame, and pulleys on both sides of the baffle, which are slidably mounted on the corresponding guide rails.

[0015] Beneficial effects:

[0016] This invention provides a cleaning device for the lower casing of a power battery. By setting a positioning clamp for positioning the lower casing of the battery and a clamping mechanism for pressing the lower casing of the battery, multiple threaded holes on the lower casing of the battery correspond one-to-one with nozzles. By setting a water supply mechanism, water pipes, and nozzles, the nozzles atomize water and rinse the inner wall of the threaded holes to remove oil stains and metal scraps from the threaded holes. Attached Figure Description

[0017] Figure 1 The image shows a right view of the cleaning device for the lower casing of a power battery provided by the present invention.

[0018] Figure 2 This is a front view of the cleaning device for the lower casing of the power battery.

[0019] Figure 3 for Figure 1 Top view.

[0020] Figure 4 This is a top view of the flushing mechanism.

[0021] Figure 5 This is a front view of the flushing mechanism and the lower battery housing.

[0022] Figure 6 This is a schematic diagram of the clamping mechanism.

[0023] Figure 7 This is a schematic diagram of the lower battery housing.

[0024] Figure 8 This is a simplified structural diagram of the lower battery housing.

[0025] Explanation of main component symbols: 1-Frame, 11-Collection tank, 111-Drainage slope, 2-Positioning clamp, 3-Clamping mechanism, 31-Clamping cylinder, 32-Pressure plate, 33-Pressure rod, 34-Nut, 35-Spring, 36-Pressure plate, 4-Flushing mechanism, 41-Mounting plate, 42-Nozzle, 43-Water pipe, 44-Filter, 441-Inlet, 442-Outlet, 443-Drain outlet, 51-Electric heater, 52-Air tank, 53-Heating pipe, 6-Oil mist purification mechanism, 71-Lifting cylinder, 72-Baffle, 10-Battery lower housing, 20-Threaded hole. Detailed Implementation

[0026] This invention provides a cleaning device for the lower casing of a power battery. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the scope of protection of the invention.

[0027] Please see Figure 1 and Figure 2 This invention provides a cleaning device for the lower casing of a power battery, including a frame 1, a positioning clamp 2 disposed on the upper surface of the frame 1, a pressing mechanism 3, and a rinsing mechanism 4; please refer to [link to relevant documentation]. Figure 4 and Figure 5 The rinsing mechanism 4 includes a mounting plate 41 disposed on the upper surface of the frame 1, multiple nozzles 42, and a water pipe 43. Please refer to [link / reference]. Figure 7 and Figure 8 Each of the nozzles 42 corresponds one-to-one with the threaded holes 20 on the lower battery housing 10, and all the nozzles 42 are located below the threaded holes 20. The mounting plate 41 has multiple channels (not shown in the figure) that communicate with the corresponding nozzles 42. The channels are connected to the water supply mechanism (not shown in the figure, but may be a water supply pipe connected to the municipal water supply network) through the water pipe 43. The positioning clamp 2 is used to support the lower battery housing 10, and the clamping mechanism 3 is used to clamp the lower battery housing 10.

[0028] Specifically, the positioning fixture 2 is a contour block whose shape matches the outline of the lower battery housing 10, allowing the lower battery housing 10 to be loaded in the correct position. After loading, the control mechanism drives the clamping mechanism 3 to move down, fixing the lower battery housing 10 onto the positioning fixture 2. Then, the control mechanism drives the flushing mechanism 4 to operate, and the water supply mechanism supplies water through the water pipe 43 and channel to multiple nozzles 42. The water is atomized into a mist by the nozzles 42 and sprayed out, thereby cleaning the inner wall of the threaded hole 20 aligned with the nozzles 42. The cleaned oil stains and metal shavings can then flow away from the threaded hole 20.

[0029] The cleaning device described above uses a positioning clamp 2 for positioning the lower battery housing 10 and a clamping mechanism 3 for pressing the lower battery housing 10, so that multiple threaded holes 20 on the lower battery housing 10 correspond one-to-one with nozzles 42; and uses a water supply mechanism, water pipe 43, and nozzles 42 to atomize water and rinse the inner wall of the threaded holes 20 to remove oil stains and metal scraps from the threaded holes 20.

[0030] Please see Figure 2 In some embodiments, a collection tank 11 is provided on the frame 1, located below the mounting plate 41. The collection tank 11 is used to collect the rinsing water after cleaning the threaded hole 20; please refer to Figure 1 and Figure 3The outlet of the collection tank 11 is connected to the filter 44 via a pipe. A high-pressure pump (not shown in the figure) is also installed on the water pipe 43 between the filter 44 and the channel. After cleaning, the rinsing water flows by gravity into the collection tank 11. A guide slope 111 can be installed on the frame 1 to facilitate the rapid collection of rinsing water into the collection tank 11. In addition, by installing the filter 44, metal scraps in the rinsing water can be blocked, making the rinsing water clean. It can then be recycled and pumped back to the nozzle 42 by the high-pressure pump, and sprayed into the inner wall of the threaded hole 20 in the form of high-pressure water mist. To allow the rinsing water in the collection tank 11 to flow to the filter 44, a lift pump can also be installed. Specifically, the pressure of the high-pressure pump is 10 kg, and the diameter of the nozzle 42 is 2 mm.

[0031] Please see Figure 1 In some embodiments, the filter 44 is provided with a first filter screen and a second filter screen, with the first filter screen located above the second filter screen. The rinsing water flows from top to bottom through the first filter screen and the second filter screen. The pore size of the first filter screen is 50 micrometers, and the pore size of the second filter screen is 10 micrometers. The filter 44 is columnarly arranged on the upper surface of the frame 1, with the inlet 441 located above the first filter screen, the outlet 442 located below the second filter screen, and the drain outlet 443 located below the outlet. By limiting the pore sizes of the first and second filter screens, two-stage filtration of the rinsing water is achieved, ensuring that the rinsing water meets the requirements for recycling.

[0032] In some embodiments, the clamping mechanism 3 includes a clamping cylinder 31 with its output end facing downward, a pressure plate 32 connected to the output end of the clamping cylinder 31, and a pressing member disposed on the pressure plate 32. The lower surface of the pressing member is used to abut against the upper surface of the lower battery casing 10. The control mechanism drives the output end of the clamping cylinder 31 to move downward, causing the pressure plate 32 and the pressing member to move downward synchronously until the pressing member clamps the lower battery casing 10. When it is necessary to release the clamping force on the lower battery casing 10, the control mechanism drives the clamping cylinder 31 to move the pressure plate 32 and the pressing member upward synchronously, allowing the worker to unload the cleaned lower battery casing 10.

[0033] Please see Figure 2 and Figure 6In some embodiments, the pressing component includes a pressing rod 33, a pressing plate 36, a spring 35, and a nut 34. The upper part of the pressing rod 33 penetrates the upper and lower side walls of the pressing plate 32, and the upper part of the pressing rod 33 is provided with an external thread, which is threadedly connected to the nut 34. The spring 35 is sleeved on the pressing rod 33, the upper end of the spring 35 abuts against the lower surface of the pressing plate 32, and the lower end of the spring 35 abuts against the upper surface of the pressing plate 36. The lower surface of the pressing plate 36 is used to abut against the upper surface of the lower battery housing 10. Specifically, when the pressing cylinder 31 drives the pressing component to move downward synchronously, it gradually compresses the spring 35, thereby relieving the impact force between the pressing plate 36 and the lower battery housing 10, and protecting the lower battery housing 10.

[0034] Please see Figure 1 and Figure 3 In some embodiments, the cleaning device for the lower battery housing 10 further includes a heating mechanism mounted on the frame 1. The heating mechanism includes an electric heater 51, a gas storage tank 52, and a heating pipe 53. The electric heater 51 heats the gas in the gas storage tank 52, and the heated gas is blown onto the lower battery housing 10 through the heating pipe. The electric heater 51 can also heat compressed air in the gas storage tank 52, and the heated gas is blown onto the lower battery housing 10 through the heating pipe 53. The heating pipe 53 can also be connected to an air inlet aligned with the threaded hole 20. By blowing hot air, moisture on the surface of the lower battery housing 10 and in the threaded hole 20 is rapidly evaporated.

[0035] Please see Figure 1 and Figure 2 In some embodiments, the frame 1 is further provided with an oil mist purification mechanism 6, which is located above the lower battery housing 10. The oil mist purification mechanism 6 is used to collect the water vapor and oil mist generated during the cleaning of the lower battery housing 10. High-pressure water generated by the high-pressure pump permeates the interior of the cleaning device. Simultaneously, the high-pressure water impacts the inner wall of the threaded hole 20, causing oil stains to turn into oil mist and water vapor. The oil mist purification mechanism 6 can collect the oil mist and water vapor to prevent the oil mist from redepositing in the threaded hole 20.

[0036] In some embodiments, the frame 1 is further equipped with an oil removal mechanism, which is connected to the collection tank 11. This mechanism removes oil from the rinsing water. (This mechanism is not shown in the figure; it is a purchased product.) The rinsing water, carrying oil and metal shavings, flows back to the collection tank 11. The oil removal mechanism isolates the oil in the rinsing water, and the metal shavings are then separated by the filter 44, making the recycled water clean and reusable. Similarly, the water purified by the oil mist purification mechanism 6 can also be recycled for cleaning. Specifically, this oil removal mechanism is a flocked belt oil skimmer.

[0037] Please see Figure 1 and Figure 2 In some embodiments, the frame 1 is further provided with a baffle 72 and a lifting cylinder 71. The output end of the lifting cylinder 71 is downward and connected to the baffle 72, which is located in front of the lower battery housing 10. When loading or unloading the lower battery housing 10, the output end of the lifting cylinder 71 retracts, causing the baffle 72 to rise. When cleaning the lower battery housing 10, the output end of the lifting cylinder 71 extends, causing the baffle 72 to descend, thus isolating the lower battery housing 10 from the outside environment and preventing high-pressure water, water vapor, oil mist, etc., from spreading everywhere.

[0038] In some embodiments, the frame 1 is provided with two vertically arranged guide rails (not shown in the figure), and pulleys (not shown in the figure) are provided on both sides of the baffle 72, with the pulleys slidably mounted on the corresponding guide rails. The guide rails and pulleys allow the baffle 72 to rise or fall more smoothly.

[0039] In summary, this invention, by setting a positioning fixture 2 for positioning the lower battery housing 10 and a clamping mechanism 3 for clamping the lower battery housing 10, ensures that multiple threaded holes 20 on the lower battery housing 10 correspond one-to-one with nozzles 42. By setting a water supply mechanism, water pipe 43, and nozzles 42, the nozzles 42 atomize water and rinse the inner walls of the threaded holes 20 to remove oil stains and metal shavings. The inclusion of a collection tank 11 and a filter 44 allows for the recycling of rinsing water, reducing manufacturing costs. A high-pressure pump generates high-pressure water that is sprayed onto the inner walls of the threaded holes 20, increasing the impact force and accelerating the removal of oil stains and metal shavings. A clamping cylinder 31 and a pressure plate 32 are used to clamp the lower battery housing 10 when multiple clamping components move downwards. A spring 35 is fitted onto the pressure rod 33 to relieve the downward pressure of the pressure plate 36 on the lower battery housing 10. A heating mechanism is provided to heat the compressed air, thereby quickly removing moisture from the surface of the battery lower housing 10 and the threaded holes 20. An oil mist purification mechanism 6 is provided to collect water vapor and oil mist generated during the cleaning of the battery lower housing 10. An oil removal mechanism is provided to remove oil stains from the rinsing water. A lifting cylinder 71 and a baffle 72 are provided to isolate the battery lower housing 10 from the outside environment. Guide rails and pulleys are provided to ensure smooth movement of the baffle 72.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., 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 this invention and simplifying the description, and do not 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 this invention.

[0041] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A cleaning device for the lower casing of a power battery, characterized in that, The device includes a frame, a positioning fixture mounted on the upper surface of the frame, a clamping mechanism, and a rinsing mechanism. The rinsing mechanism includes a mounting plate mounted on the upper surface of the frame, multiple nozzles, and water pipes. Each nozzle corresponds to a threaded hole on the lower battery housing, and all nozzles are located below the threaded holes. The mounting plate has multiple channels communicating with the corresponding nozzles, and these channels are connected to a water supply mechanism via water pipes. The positioning fixture supports the lower battery housing, and the clamping mechanism clamps the lower battery housing. A liquid collection tank is mounted on the frame, located below the mounting plate, and is used to collect the rinsing water after cleaning the threaded holes. The outlet of the liquid collection tank is connected to a filter via a pipe, and a high-pressure pump is installed on the water pipe between the filter and the channels. The filter contains a first filter screen and a second filter screen. The first filter screen is located above the second filter screen, and the rinsing water flows from top to bottom through the first filter screen and the second filter screen; the pore size of the first filter screen is 50 micrometers, and the pore size of the second filter screen is 10 micrometers; the pressing mechanism includes a pressing cylinder with its output end facing downward, a pressure plate connected to the output end of the pressing cylinder, and a pressing component disposed on the pressure plate, the lower surface of the pressing component being used to abut against the upper surface of the lower battery casing; the pressing component includes a pressing rod, a pressing plate, a spring, and a nut, the upper part of the pressing rod penetrating through the upper and lower side walls of the pressure plate, and the upper part of the pressing rod being provided with an external thread, the external thread being threadedly connected to the nut; the spring is sleeved on the pressing rod, the upper end of the spring abutting against the lower surface of the pressure plate, the lower end of the spring abutting against the upper surface of the pressing plate, and the lower surface of the pressing plate being used to abut against the upper surface of the lower battery casing.

2. The cleaning device for the lower casing of the power battery according to claim 1, characterized in that, It also includes a heating mechanism mounted on the frame, which includes an electric heater, a gas storage tank, and a heating pipe. The electric heater is used to heat the gas in the gas storage tank, and the heated gas is blown onto the lower battery casing through the heating pipe.

3. The cleaning device for the lower casing of the power battery according to claim 1, characterized in that, The frame is also equipped with an oil mist purification mechanism, which is located above the lower battery housing. The oil mist purification mechanism is used to collect water vapor and oil mist generated when cleaning the lower battery housing.

4. The cleaning device for the lower casing of the power battery according to claim 1, characterized in that, The frame is also equipped with an oil removal mechanism, which is connected to the collection tank and is used to remove oil from the rinsing water.

5. The cleaning device for the lower casing of the power battery according to claim 1, characterized in that, The frame is also equipped with a baffle and a lifting cylinder. The output end of the lifting cylinder is set downward and is connected to the baffle. The baffle is located in front of the lower battery housing.

6. The cleaning device for the lower casing of the power battery according to claim 5, characterized in that, The frame is provided with two vertically arranged guide rails, and pulleys are provided on both sides of the baffle, with the pulleys slidably mounted on the corresponding guide rails.

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