Novel air conditioner sterilization peripheral device

Abstract

The utility model discloses a novel air conditioner sterilization external device which comprises an external installation cover, an ultraviolet sterilization lamp and a cleaning filter plate are arranged in the external installation cover, and a ventilation opening frame is arranged above the external installation cover. According to the utility model, the non-woven fabric is arranged on the magnetic suction type filter assembly, so that dust filtration and ventilation can be realized, the cleaning filter plate can perform secondary filtration on air entering the external mounting cover, the ultraviolet germicidal lamp can perform a strong ultraviolet germicidal effect, and the cleaning scraper assembly is arranged above the cleaning filter plate, so that the cleaning scraper assembly is arranged above the cleaning filter plate. The device can be driven by an external magnetic attraction driving assembly to move, dirt and impurities remaining after filtering of the cleaning filter plate are cleaned, the magnetic attraction driving assembly is driven by electric drive, breeding of bacteria is reduced, self-cleaning operation is facilitated, the device is good in particulate matter filtering and ultraviolet sterilization effect and excellent in sterilization capacity, self-cleaning is facilitated, and the service life of the device is prolonged. The breeding of bacteria is reduced, and the air quality treatment effect is excellent.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner accessories technology, and in particular to a novel air conditioner sterilization peripheral device. Background Technology

[0002] With social progress and development, and the improvement of people's living standards, users have increasingly higher demands for air conditioning. This has led to the addition of sterilization functions to traditional air conditioning systems to eliminate bacteria in the air, prevent the spread of disease, and protect users' health. However, existing air conditioning systems face significant technical bottlenecks in air sterilization and purification. Dust easily accumulates in air ducts and indoor units after long-term operation, creating a breeding ground for bacteria, viruses, and other microorganisms. Furthermore, direct exposure to high-intensity ultraviolet radiation can harm human skin and eyes, necessitating improvements to air conditioning systems for protection.

[0003] Traditional air conditioners with sterilization functions are expensive. Installing an external sterilization device on existing air conditioners could save unnecessary costs. However, current air conditioner sterilization modules are generally difficult to install, and traditional filters can only physically intercept particulate matter, failing to completely kill pathogenic microorganisms. They also require regular replacement and maintenance, resulting in high operating costs. Furthermore, their automatic cleaning and dust-scraping capabilities are relatively poor, easily clogging filters over time and causing bacterial growth. Consequently, their air sterilization and disinfection capabilities are insufficient, leading to inadequate air quality and insufficient auxiliary air intake sterilization. Therefore, we propose a new type of external air conditioner sterilization device to address these issues. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a waterproof structure for the pressure gauge movement.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel air conditioner sterilization external device includes an external device mounting cover, the interior of which is equipped with an ultraviolet sterilization lamp and a cleaning filter plate;

[0007] The external mounting cover has a ventilation opening frame on top, and a magnetic filter assembly is magnetically engaged in the ventilation opening frame. The ultraviolet germicidal lamp is located above the cleaning filter plate. A cleaning scraper assembly is slidably connected to the top of the cleaning filter plate. A magnetic drive assembly is correspondingly provided on the side of the top of the external mounting cover.

[0008] The magnetic end of the magnetic drive assembly corresponds to and is magnetically attracted to the cleaning scraper assembly, and the magnetic end of the magnetic drive assembly can be electrically driven to move.

[0009] Preferably, the cleaning filter plate includes a dust removal frame plate and a metal filter cloth. The metal filter cloth is attached to the upper part of the dust removal frame plate. The dust removal frame plate is fixedly connected to the inner side of the external mounting cover. The metal filter cloth is a mesh filter and is flattened into a planar shape.

[0010] Preferably, the bottom of the peripheral mounting cover is provided with a magnetic pad, the top of the magnetic pad is attached to the bottom of the peripheral mounting cover, and the magnetic pad is made of magnetic material.

[0011] Preferably, the ultraviolet germicidal lamp is located below the cleaning filter plate, the ventilation opening frame is open, the ventilation opening frame is embedded in the top of the external mounting cover, the magnetic filter assembly is magnetically installed on the top of the ventilation opening frame, and the bottom of the magnetic filter assembly is inserted and snapped into the inside of the ventilation opening frame.

[0012] Preferably, the magnetic filter assembly includes a magnetic mounting frame and a dust removal filter cloth, the dust removal filter cloth is disposed on the top of the magnetic mounting frame, and the magnetic mounting frame is magnetically engaged with the ventilation opening frame.

[0013] Preferably, the cleaning scraper assembly includes a magnetic block moving frame and a movable cleaning brush. The bottom of the movable cleaning brush contacts the top of the cleaning filter plate, and the two sides of the movable cleaning brush slide against the two sides inside the external mounting cover. The magnetic block moving frame is fixedly installed on the top of the movable cleaning brush, and the magnetic block moving frame corresponds to the magnetic attraction drive assembly and is magnetically attracted to each other.

[0014] Preferably, auxiliary slides are provided on both sides inside the external mounting cover, and the two ends of the movable cleaning brush are respectively engaged and slid within the two auxiliary slides.

[0015] Preferably, the magnetic drive assembly includes a micro motor, a support frame, a threaded drive rod, and a magnetic control end. The micro motor and the support frame are both mounted on the side of the top of the external mounting cover. The threaded drive rod is rotatably connected to the inner side of the support frame. The magnetic control end is slidably engaged with the inner side of the support frame. The magnetic control end is threadedly connected to the rod body of the threaded drive rod. The end of the threaded drive rod is connected to the output end of the micro motor. The magnetic control end corresponds to the cleaning scraper assembly and is magnetically driven.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. This novel air conditioner sterilization external device features a magnetic pad that allows it to magnetically attach to the top of the air conditioner's air inlet, facilitating the attachment of the external device mounting cover. The top of the mounting cover has a ventilation opening frame, enabling easy magnetic snap-fit ​​installation and disassembly of the magnetic filter assembly. The magnetic filter assembly is covered with non-woven fabric, providing good dust filtration and ventilation. The interior of the mounting cover contains an ultraviolet germicidal lamp and a cleaning filter plate. The cleaning filter plate filters residual air particles passing through the mounting cover, providing dual filtration. The ultraviolet germicidal lamp provides powerful ultraviolet sterilization, achieving both physical filtration and ultraviolet sterilization. This design makes the device easy to install and disassemble, offering excellent particulate filtration and ultraviolet sterilization effects, and superior sterilization capabilities.

[0018] 2. This new type of air conditioner sterilization external device, by setting a cleaning scraper assembly above the cleaning filter plate, can be driven by an external magnetic drive assembly to move and clean the dirt and impurities remaining after the filter plate is filtered. The magnetic drive assembly is electrically driven, which reduces the growth of bacteria and facilitates self-cleaning. This makes the device easy to self-clean, reduces the growth of bacteria, and has excellent air quality treatment effect. Attached Figure Description

[0019] Figure 1 This utility model presents a frontal perspective three-dimensional schematic diagram of a novel air conditioner sterilization peripheral device;

[0020] Figure 2 This utility model presents a rear-view perspective view of a novel air conditioning sterilization peripheral device.

[0021] Figure 3 This utility model presents a bottom-view perspective view of a novel air conditioning sterilization peripheral device.

[0022] Figure 4 This utility model presents a side view sectional perspective of a novel air conditioning sterilization peripheral device;

[0023] Figure 5 The present invention presents a top-view perspective view of the connection structure between the magnetic block moving frame and the moving cleaning brush of a novel air conditioner sterilization peripheral device.

[0024] In the diagram: 1. External mounting cover; 2. UV germicidal lamp; 3. Cleaning filter plate; 31. Dust removal frame plate; 32. Metal filter cloth; 4. Ventilation opening frame; 5. Magnetic filter assembly; 51. Magnetic mounting frame; 52. Dust removal filter cloth; 6. Cleaning scraper assembly; 61. Magnetic block moving frame; 62. Moving cleaning brush; 63. Auxiliary slide; 7. Magnetic drive assembly; 71. Micro motor; 72. Support frame; 73. Threaded drive rod; 74. Magnetic control end; 8. Magnetic pad. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Please see Figures 1-5 A new type of air conditioner sterilization external device includes an external device mounting cover 1, and an ultraviolet sterilization lamp 2 and a cleaning filter plate 3 are installed inside the external device mounting cover 1;

[0028] The external mounting cover 1 has a ventilation opening frame 4 on the top, and a magnetic filter assembly 5 is magnetically engaged in the ventilation opening frame 4. The ultraviolet germicidal lamp 2 is located above the cleaning filter plate 3. A cleaning scraper assembly 6 is slidably connected to the top of the cleaning filter plate 3. A magnetic drive assembly 7 is correspondingly provided on the side of the top of the external mounting cover 1.

[0029] The magnetic end of the magnetic drive assembly 7 is positioned and magnetically attracted to the cleaning scraper assembly 6, and the magnetic end of the magnetic drive assembly 7 can be electrically driven to move.

[0030] The beneficial effects of this solution are as follows: The magnetic pad 8 can be magnetically attached to the top of the air conditioner inlet, making it easy to magnetically attach the external mounting cover 1 to the air conditioner inlet. The top of the external mounting cover 1 has a ventilation opening frame 4, facilitating the magnetic snap-fit ​​installation of the magnetic filter assembly 5. Installation and removal are simple and convenient. The magnetic filter assembly 5 is covered with non-woven fabric, providing good dust filtration and ventilation. The interior of the external mounting cover 1 contains an ultraviolet germicidal lamp 2 and a cleaning filter plate 3. The cleaning filter plate 3 filters residual air particles from the air passing through the external mounting cover 1, working in conjunction with the cleaning filter... The filter plate 3 provides dual filtration, and the ultraviolet germicidal lamp 2 provides powerful ultraviolet sterilization, achieving both physical filtration and ultraviolet sterilization. The cleaning scraper assembly 6 is located above the cleaning filter plate 3 and can be moved by the external magnetic drive assembly 7 to clean the dirt and impurities remaining after filtration by the cleaning filter plate 3. The magnetic drive assembly 7 is electrically driven, which reduces bacterial growth and facilitates self-cleaning. This makes the device easy to assemble and disassemble, with good particulate matter filtration and ultraviolet sterilization effects, excellent sterilization ability, and easy self-cleaning, reducing bacterial growth and resulting in excellent air quality treatment.

[0031] Furthermore, the cleaning filter plate 3 includes a dust removal frame plate 31 and a metal filter cloth 32. The metal filter cloth 32 is attached to the upper part of the dust removal frame plate 31. The dust removal frame plate 31 is fixedly connected to the inner side of the external installation cover 1. The metal filter cloth 32 is a mesh filter screen and is flattened into a planar shape.

[0032] By setting the cleaning filter plate 3, which includes a dust removal frame plate 31 and a metal filter cloth 32, the dust removal frame plate 31 provides support, and the metal filter cloth 32 provides a smooth filtration effect. The metal filter screen has good wear resistance, making the cleaning scraper assembly 6 less prone to wear and damage during cleaning.

[0033] Furthermore, the bottom of the peripheral mounting cover 1 is provided with a magnetic pad 8, the top of the magnetic pad 8 is attached to the bottom of the peripheral mounting cover 1, and the magnetic pad 8 is made of magnetic material.

[0034] By setting up a magnetic pad 8, the magnetic pad 8 can be magnetically attached to the top of the air conditioner air inlet, making it easy to install the external device mounting cover 1 on the air conditioner. Magnetic installation is relatively simple and easy to install and remove.

[0035] Furthermore, the ultraviolet germicidal lamp 2 is located below the cleaning filter plate 3, the ventilation opening frame 4 is open, the ventilation opening frame 4 is embedded in the top of the external installation cover 1, the magnetic filter assembly 5 is magnetically installed on the top of the ventilation opening frame 4, and the bottom of the magnetic filter assembly 5 is inserted and snapped into the inside of the ventilation opening frame 4.

[0036] By setting the ultraviolet germicidal lamp 2 below the cleaning filter plate 3, it is convenient to filter first and then sterilize. The cleaning filter plate 3 includes a dust removal frame plate 31 and a metal filter cloth 32. The dust removal frame plate 31 provides support, and the metal filter cloth 32 provides a smooth filtration effect. The metal filter screen has good wear resistance, making the cleaning scraper assembly 6 less prone to wear and damage during cleaning.

[0037] Furthermore, the magnetic filter assembly 5 includes a magnetic mounting frame 51 and a dust removal filter cloth 52. The dust removal filter cloth 52 is disposed on the top of the magnetic mounting frame 51, and the magnetic mounting frame 51 is magnetically engaged with the ventilation opening frame 4.

[0038] The magnetic filter assembly 5 includes a magnetic mounting frame 51 and a dust filter cloth 52. The magnetic mounting frame 51 is used for magnetic installation and removal. The dust filter cloth 52 is made of non-woven fabric, which provides good dust filtration and ventilation. It can stabilize ventilation while also providing dust filtration. The dust filter cloth 52 is easy to replace, has low cost, and is easy to replace.

[0039] Furthermore, the cleaning scraper assembly 6 includes a magnetic block moving frame 61 and a movable cleaning brush 62. The bottom of the movable cleaning brush 62 contacts the top of the cleaning filter plate 3, and the two sides of the movable cleaning brush 62 slide against the two sides inside the external mounting cover 1. The magnetic block moving frame 61 is fixedly installed on the top of the movable cleaning brush 62. The magnetic block moving frame 61 and the magnetic attraction drive assembly 7 are positioned corresponding to each other and are magnetically attracted to each other.

[0040] The cleaning scraper assembly 6 includes a magnetic block moving frame 61 and a movable cleaning brush 62. The movable cleaning brush 62 is engaged and slidably inside the external mounting cover 1, and can move within the thread on the top of the metal filter cloth 32. The magnetic block moving frame 61 can be driven by the external magnetic drive assembly 7 to move, thereby enabling the magnetic block moving frame 61 to drive the movable cleaning brush 62 to move. During the movement, the movable cleaning brush 62 cleans the dirt and impurities remaining after filtration by the metal filter cloth 32, making it less likely for residue to remain on the metal filter cloth 32.

[0041] Furthermore, auxiliary slides 63 are provided on both sides inside the external mounting cover 1, and the two ends of the movable cleaning brush 62 are respectively engaged and slid in the two auxiliary slides 63.

[0042] By providing auxiliary slides 63 on both sides inside the external mounting cover 1, the two sides of the movable cleaning brush 62 slide and engage with the two auxiliary slides 63 respectively, which plays a locking and positioning role, making the movable cleaning brush 62 move stably and not easily deviate, and cleaning stably and not easily tilted or damaged.

[0043] Furthermore, the magnetic drive assembly 7 includes a micro motor 71, a support frame 72, a threaded drive rod 73, and a magnetic control end 74. The micro motor 71 and the support frame 72 are both mounted on the side of the top of the external mounting cover 1. The threaded drive rod 73 is rotatably connected to the inside of the support frame 72. The magnetic control end 74 is slidably engaged with the inside of the support frame 72. The magnetic control end 74 is threadedly connected to the rod body of the threaded drive rod 73. The end of the threaded drive rod 73 is connected to the output end of the micro motor 71. The magnetic control end 74 corresponds to the cleaning scraper assembly 6 and is magnetically driven.

[0044] The magnetic drive assembly 7 includes a micro motor 71, a support frame 72, a threaded drive rod 73, and a magnetic control end 74. The support frame 72 supports the threaded drive rod 73 and the magnetic control end 74. The micro motor 71 drives the threaded drive rod 73 to rotate, causing the magnetic control end 74 to move within the threaded drive rod 73 and the support frame 72. The support frame 72 limits and positions the magnetic control end 74. When the magnetic control end 74 moves, it can drive the magnetic block moving frame 61 to move magnetically, thereby driving the moving cleaning brush 62 to move and clean, making the self-cleaning of the filter plate 3 convenient.

[0045] How to use and how to work this device:

[0046] By installing an external mounting cover 1 at the air inlet on the top of the air conditioner, the external mounting cover 1 can perform sterilization and dust filtration when the air conditioner is running and starts to exhaust air. The bottom of the external mounting cover 1 is provided with a magnetic pad 8, which can be magnetically attached to the top of the air inlet of the air conditioner, making it easy to install the external mounting cover 1 at the air conditioner. The top of the external mounting cover 1 is provided with a ventilation opening frame 4, which facilitates the magnetic snap-fit ​​installation of the magnetic filter assembly 5. The magnetic filter assembly 5 can play the role of ventilation and dust filtration, and the integration and disassembly are relatively simple and convenient.

[0047] The ventilation opening frame 4 is installed on the top of the external installation cover 1 to provide ventilation. The magnetic filter assembly 5 is magnetically snapped into the ventilation opening frame 4 for easy disassembly and use. The magnetic filter assembly 5 includes a magnetic mounting frame 51 and a dust removal filter cloth 52. The magnetic mounting frame 51 is used for magnetic disassembly and assembly. The dust removal filter cloth 52 is made of non-woven fabric, which provides good dust filtration and ventilation. It provides stable ventilation while also removing dust. The dust removal filter cloth 52 is easy to replace, has low cost, and is easy to replace.

[0048] The exterior mounting cover 1 is equipped with an ultraviolet germicidal lamp 2 and a cleaning filter plate 3. The cleaning filter plate 3 filters the air passing through the exterior mounting cover 1 to remove residual substances. Together with the cleaning filter plate 3, it achieves a dual filtration effect with excellent filtration capacity and high filtration quality. The ultraviolet germicidal lamp 2 provides strong ultraviolet sterilization to the air after ventilation and filtration inside the exterior mounting cover 1. Air filtration and ultraviolet sterilization can be carried out simultaneously, completing the function of filtering first and then sterilizing, thereby achieving the effect of physical filtration and ultraviolet sterilization, and further improving the air freshness.

[0049] The cleaning filter plate 3 includes a dust removal frame plate 31 and a metal filter cloth 32. The dust removal frame plate 31 provides support, while the metal filter cloth 32 provides a smooth filtration effect. The metal filter screen has good wear resistance, making the cleaning scraper assembly 6 less prone to wear and damage during cleaning. The cleaning scraper assembly 6 includes a magnetic block moving frame 61 and a moving cleaning brush 62. The moving cleaning brush 62 is engaged and slidably inside the external mounting cover 1, and can move within the thread on the top of the metal filter cloth 32. The magnetic block moving frame 61 can be driven by the external magnetic attraction drive assembly 7 to move, thereby driving the moving cleaning brush 62 to move. During the movement, the moving cleaning brush 62 cleans the dirt and impurities remaining after filtration by the metal filter cloth 32, making it less likely for residue to remain on the metal filter cloth 32. The magnetic attraction drive assembly 7 is electrically driven and can drive the cleaning scraper assembly 6 to perform a self-cleaning brushing action on the cleaning filter plate 3, making cleaning convenient and reducing bacterial growth.

[0050] The magnetic drive assembly 7 includes a micro motor 71, a support frame 72, a threaded drive rod 73, and a magnetic control end 74. The support frame 72 supports the threaded drive rod 73 and the magnetic control end 74. Running the micro motor 71 drives the threaded drive rod 73 to rotate, causing the magnetic control end 74 to move within the threaded drive rod 73 and the support frame 72. The support frame 72 limits and positions the magnetic control end 74. When the magnetic control end 74 moves, it can drive the magnetic block moving frame 61 to move magnetically, thereby driving the moving cleaning brush 62 to move and clean. The filter plate 3 is easy to clean. Both sides of the external mounting cover 1 are equipped with auxiliary slides 63. The two sides of the movable cleaning brush 62 are respectively engaged with the two auxiliary slides 63, which plays a locking and positioning role, making the movable cleaning brush 62 move stably and not easily deviate. It has a good cleaning effect, facilitates self-cleaning operation, eliminates the need for manual cleaning, is easy to operate and use, and makes the device easy to disassemble and assemble. It has good particulate matter filtration and ultraviolet sterilization effects, excellent sterilization ability, and is easy to self-clean, reducing the growth of bacteria and achieving excellent air quality treatment effect.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A new type of air conditioner sterilization peripheral device, comprising a peripheral installation cover (1), characterized in that: The external mounting cover (1) is equipped with an ultraviolet germicidal lamp (2) and a cleaning filter plate (3); The external mounting cover (1) is provided with a ventilation opening frame (4) above it. A magnetic filter assembly (5) is magnetically engaged in the ventilation opening frame (4). The ultraviolet germicidal lamp (2) is located above the cleaning filter plate (3). A cleaning scraper assembly (6) is slidably connected to the top of the cleaning filter plate (3). A magnetic drive assembly (7) is correspondingly provided on the side of the top of the external mounting cover (1). The magnetic end of the magnetic drive assembly (7) is positioned and magnetically attracted to the cleaning scraper assembly (6), and the magnetic end of the magnetic drive assembly (7) can be electrically driven to move.

2. The new air conditioner sterilization peripheral device according to claim 1, characterized in that: The cleaning filter plate (3) includes a dust removal frame plate (31) and a metal filter cloth (32). The metal filter cloth (32) is attached to the upper part of the dust removal frame plate (31). The dust removal frame plate (31) is fixedly connected to the inner side of the external installation cover (1). The metal filter cloth (32) is a mesh filter and is flat and planar.

3. The new air conditioner sterilization peripheral device according to claim 1, characterized in that: The bottom of the external device mounting cover (1) is provided with a magnetic pad (8), the top of the magnetic pad (8) is attached to the bottom of the external device mounting cover (1), and the magnetic pad (8) is made of magnetic material.

4. The new air conditioner sterilization peripheral device according to claim 1, characterized in that: The ultraviolet germicidal lamp (2) is located below the cleaning filter plate (3). The ventilation opening frame (4) is open and is embedded in the top of the external installation cover (1). The magnetic filter assembly (5) is magnetically installed on the top of the ventilation opening frame (4). The bottom of the magnetic filter assembly (5) is inserted and snapped into the inside of the ventilation opening frame (4).

5. The new air conditioner sterilization peripheral device according to claim 1, characterized in that: The magnetic filter assembly (5) includes a magnetic mounting frame (51) and a dust removal filter cloth (52). The dust removal filter cloth (52) is disposed on the top of the magnetic mounting frame (51), and the magnetic mounting frame (51) is magnetically attached to the ventilation opening frame (4).

6. The new air conditioner sterilization peripheral device according to claim 1, characterized in that: The cleaning scraper assembly (6) includes a magnetic block moving frame (61) and a moving cleaning brush (62). The bottom of the moving cleaning brush (62) is in contact with the top of the cleaning filter plate (3). The two sides of the moving cleaning brush (62) slide against the two sides inside the external mounting cover (1). The magnetic block moving frame (61) is fixedly installed on the top of the moving cleaning brush (62). The magnetic block moving frame (61) is positioned corresponding to the magnetic attraction drive assembly (7) and magnetically attracts each other.

7. The new air conditioner sterilization peripheral device according to claim 6, characterized in that: The external mounting cover (1) has auxiliary slides (63) on both sides inside, and the two ends of the movable cleaning brush (62) are respectively engaged and slid in the two auxiliary slides (63).

8. The new air conditioner sterilization peripheral device according to claim 1, characterized in that: The magnetic drive assembly (7) includes a micro motor (71), a support frame (72), a threaded drive rod (73), and a magnetic control end (74). The micro motor (71) and the support frame (72) are both installed on the side of the top of the external mounting cover (1). The threaded drive rod (73) is rotatably connected to the inside of the support frame (72). The magnetic control end (74) is slidably engaged with the inside of the support frame (72). The magnetic control end (74) is threadedly connected to the rod body of the threaded drive rod (73). The end of the threaded drive rod (73) is connected to the output end of the micro motor (71). The magnetic control end (74) is positioned corresponding to the cleaning scraper assembly (6) and is magnetically driven.

Images